Adhere to the principle of quality first and safety first, put the construction safety work in an important position, and earnestly implement it in all links. At the same time, the characteristic of safety work is that it is a complex system work, which requires the balance and participation of all staff.
Section 1 Safety Production Management System
First, the goal of safe production
Achieve the five goals of "no fatal accident, no major injury accident, no major mechanical accident, no fire and no poisoning accident".
Second, the safety production management system
The company's safety work leading group leads the overall safety work, and its main responsibilities are to lead the company to carry out safety education, implement and publicize the spirit of various laws, notices and superior documents, formulate various management regulations, conduct safety work inspection and appraisal on various projects every week, and deal with major safety issues. The project department shall set up a safety management team and full-time safety officers, whose main duties are to make safety technical disclosure to workers, implement the spirit of superiors, check the safety work of engineering construction every day and hold an engineering safety meeting once a week. Formulate specific safety regulations and illegal treatment measures, and report to the company's safety leading group 1 time. Each ZuoYeDui has a part-time safety officer, who is mainly responsible for leading each ZuoYeDui to operate carefully, giving patient guidance to each worker, handling problems immediately when found, and reporting to the site safety management team in time.
Third, the safety inspection system
In the process of construction, in addition to the normal safety inspection, the company checks once a month, the engineering department checks once every two months and the project department checks once a week. Find problems, implement them to people, rectify them within a time limit, eliminate hidden dangers and ensure construction safety.
Fourth, the safety education system
According to the company's safety education system, strengthen publicity and education, formulate scientific and reasonable construction scheme, organize practical operation procedures on site, and correctly and strictly implement and apply construction and safety specifications. Carry out diagnostic tests on workers entering the site, conduct unified safety education, and enhance quality and safety awareness. All professional teams and groups earnestly study the design drawings for technical disclosure, and earnestly study and deeply understand the construction technical specifications and construction safety specifications. Only employees who have been trained and disclosed are allowed to work at their posts, laying a solid foundation for the smooth development of safety work. In the process of construction, establish weekly safety education, presided over by the project manager or full-time security officer. At the same time, before each construction process, the full-time safety officer will make a written safety technical disclosure, and each team leader will lead the construction personnel to seriously implement it.
In the second quarter, production safety guarantee measures
I. Technical measures
1. In the general layout design of construction, the planning of safe passage for people and logistics, the layout of warehouses, materials and machines should comply with the regulations on fire control, safety and hygiene, the first aid facilities for fire control and hygiene should be implemented, and different types of safety protection sheds should be set up.
2. During the construction of the main structure, the safety technical disclosure is specially prepared for the structure and formwork system in detail in the sub-project plan.
3, high-rise building construction scaffolding should prepare special erection and demolition work plan and safety management regulations.
4. In the construction of high-rise buildings, the vertical transportation of materials and personnel is large, so it is necessary to formulate special regulations on safe use and management.
Second, the construction machinery safety
1. Derrick: After the derrick is assembled, it shall be inspected and accepted, and no-load, dynamic load and overload tests shall be conducted. It is forbidden to carry people and overload, and it is forbidden to dismantle the wall frame at will. When the driver leaves, he should put down the hanging basket and cut off the power supply.
2. Other machinery: use it according to the operating rules, strengthen the management of mechanical equipment, check, repair and maintain it regularly, and keep it in good working condition.
Third, use electricity safely.
The power supply adopts three-phase five-wire system and is equipped with special grounding wire. The main distribution box and distribution box should be equipped with rain cover, door lock and corresponding leakage protector. The line from the ground floor to the floor and the line used for floor construction should use qualified cables and be erected correctly. Strictly implement "one machine, one brake and one leakage protection device", and all electrical equipment must have a good grounding device. Electric machinery must be managed by special personnel. When using small hand-held power tools, use a brake box with leakage protection.
Four, typhoon, rain, lightning protection measures
Outside the frame must have lightning protection measures. Lightning protection grounding can be connected with lightning protection embedded parts of the project by temporary welding, and the grounding resistance meets the specified requirements. Check it once a month, and correct it in time when problems are found. Designate a special person to master meteorological information, make timely forecasts of strong winds and heavy rains, and take corresponding technical measures to prevent accidents. It is strictly prohibited to construct under bad weather conditions such as typhoon and rainstorm.
Five, scaffolding safety
The external wall construction adopts floor-type double-row steel pipe scaffolding, and the outer side adopts fully closed dense mesh safety hanging net; Scaffolding should be designed and calculated according to the maximum load that may be borne by actual construction. Technicians shall be responsible for installation under the supervision of security personnel and technicians; Scaffolding inspection is divided into acceptance inspection. Regular inspection and special inspection. In use, it is necessary to strictly control the load on the shelf and make it evenly distributed as far as possible to avoid local overload or overall overload; When using, special attention should also be paid to maintaining the original structure and state of the shelf. It is forbidden to dig footings indiscriminately, dismantle components at will, tie walls and protect facilities. The person in charge of safety of the project department shall organize sectional acceptance and report it to the company's security department for review.
Six, safety signs and safety protection
1. Safety signs: divide safety areas, use safety signs fully and correctly, arrange appropriate safety slogans and signs, and hang operation instructions for various construction machinery.
2, safety protection:
(1), safety protection shed: around buildings, above personnel passages, above mechanical equipment, roads near residential areas, etc., steel pipes should be used to build safety protection sheds. The safety protection shed should be covered with a layer of formwork and a layer of safety net, and the side should be made of steel mesh as protective railings. Bamboo poles and templates are used to build separation walls and protective sheds on both sides and above high-voltage power lines.
(2) Protect the "three treasures, four mouths and five limbs"
On-site personnel insist on using the "three treasures". The personnel entering the site must wear safety helmet and tie the hat belt, wear rubber-soled shoes, and shall not wear hard-soled shoes, high heels and slippers, and shall not wear a seat belt when working barefoot or aloft.
Do a good job of "four ports" protection. Stairs, elevators and reserved holes shall be provided with fences, covers and grids. For buildings under construction, protective sheds that meet the requirements should be set up, and eye-catching signs should be set up.
Do a good job of "five sides" protection. Five sides refer to the periphery of balconies and roofs.
Around the floor of the frame project, on both sides of the runway and slideway, and outside the unloading platform. A double fence or safety net of 1.0M must be set for the "five borders".
Seven, night construction
Sufficient lighting equipment shall be provided for night operation, and 36V low-voltage explosion-proof working lights shall be used for direct operation.
In the third quarter, the safe use of electricity and electrical fire prevention measures
I. Measures for safe use of electricity
1, grounding and zero connection
TN-S zero protection system (i.e. three-phase five-wire system) must be adopted for low-voltage power lines with neutral point directly grounded at the construction site.
(1), the protection zero line should be composed of the working ground line or the zero line of the transformer room or the zero line of the power supply side of the primary leakage protector;
(2) The protective zero line shall be laid separately from the working zero line and shall not be used for other purposes. The protective zero line PE must adopt green/yellow double-color lines;
(3) The protective zero line must be repeatedly grounded at least three times at the middle and end of the distribution line in the distribution room (or general distribution box), and the repeated grounding line should be connected with the protective zero line;
(4) The cross section of the protective zero line shall not be less than that of the working zero line, and must meet the requirements of mechanical strength. Among them, when the overhead laying distance is not more than12m, the section of insulated copper wire should be not less than 10MM2, and the section of insulated aluminum wire should be not less than16mm2; The protective zero line connected with electrical equipment is an insulated multi-strand copper wire with a cross section of not less than 2.5mm2;
⑤ Metal shells, frames, components, pipes, tracks, metal operation desks, metal fences, metal doors, etc., which are close to the live parts of electrical equipment that are not live under normal circumstances, should be protected and connected to zero;
⑥ The direct working grounding resistance value of the neutral point of the power transformer should be not less than 4 ohms, and the repeated grounding resistance value of the protection zero line should be not less than 10 ohms. No part of the equipment should be connected with zero protection, and the other part should be grounded.
2, configure the leakage protector
(1), distribution box (transformer room) and switch box on the construction site shall be equipped with at least two levels of leakage protectors;
(2) The current action type should be selected for the leakage protector. In general, the rated leakage action current of the leakage protector should not be greater than 30MA, and the rated leakage action time should not be greater than 0.1s; ; The limit value of the product of rated leakage action current and rated leakage action time of leakage protector in damp and corrosive medium places is (greater than) 30MA. s； ;
(3) The selection of the leakage protector in the switch box should be adapted and matched with the actual situation such as the capacity and phase number of the electrical equipment. For example, for a three-phase motor, a three-phase three-wire leakage protector with matching parameters should be selected; Lighting electricity must be separated from power electricity, and single-phase two-wire leakage protector should be used for lighting.
3. The switch box is set in three levels, that is, the total distribution box is divided into distribution box switch boxes, and the distance between the switch box and the machine is no more than three meters, and the switch box is protected by one brake and one leakage.
4. External protection
① The minimum safe operating distance from the outer edge of the project under construction (including scaffolding) to the sideline of the electric overhead line: 4m below 1KV; The voltage between 1 kv and10kv is 6m;
(2) The minimum vertical distance between the motor vehicle lane and the electric overhead line on the construction site: 6m below 1kV and 7m between 1KV and 10kV;
5. Power distribution system
(1), poles, insulators and cross arms must be used for all wire erection. According to the requirements of the specification;
(2), switch electrical appliances and electrical devices must be intact;
(3), switch electrical appliances and electrical devices must be installed correctly and firmly, and shall not be placed on the floor;
(4) The joint between the belt line and the conductor must be insulated and bandaged, and the live conductor must be well insulated;
(5) It is forbidden to build, hang or press live wires on scaffolding or other objects;
6, distribution box, switch box should indicate the name, purpose and shunt; Distribution box and switch box should be locked, and there should be someone in charge;
All landowners can not have sundry, shrubs, weeds, etc. In and around the electrical box;
⑧ It is forbidden to replace the fuse with flower wire, copper wire or other metal wire for outdoor electricity use, and it is forbidden to pull wires, sockets, electric stoves and rice cookers in the dormitory due to civil strife;
Pet-name ruby, electrical equipment should be regularly maintained, maintenance must be:
A. power failure;
B. hang a power outage board and connect the necessary grounding;
C. Maintenance shall be carried out by professional electricians of corresponding levels;
D maintenance personnel should wear insulating shoes, gloves and tools;
E. the unified command shall be organized by special personnel.
6. Lighting equipment
(1) General lighting, local lighting or mixed lighting shall be provided for night construction or natural lighting places, material yards, roads, warehouses, offices, canteens, dormitories and other equipment;
(2) Select the corresponding illuminator according to the environmental conditions of the place of use;
(3), the voltage of the line lamp is not more than 36 v, the lighting voltage of the end of the lamp is 2.4 meters from the ground and other places is not more than 36 V. The lighting voltage of wet and easy-to-touch charged places should not be more than 24 V;
(4), according to the need to set up guards and red signal lighting and emergency lighting, power supply should be located in front of the main power switch on the construction site, and equipped with power supply.
7. Conduct basic knowledge training on safe electricity use for all kinds of electricity users.
Second, the safe use of electricity organization measures
1. Establish the organization design of temporary electricity consumption and the preparation and examination and approval system of technical measures for safe electricity consumption, and establish corresponding technical files.
2. Establish a technical disclosure system.
Introduce the general intention, technical content and matters needing attention of temporary electricity construction organization design and technical measures for safe electricity use to professional electricians and all kinds of electricity users, and perform the signing procedures of the disclosure person and the disclosed person on the written materials of technical disclosure, and specify the disclosure date.
3. Establish a safety inspection system. After the completion of the temporary electricity utilization project, the temporary electricity utilization project should be tested regularly, including the grounding resistance value, insulation resistance value of electrical equipment, operation parameters of leakage protector, etc. , in order to monitor whether the temporary electricity engineering is safe and reliable, and make inspection records.
4. Establish an electrical maintenance system. Strengthen daily and regular maintenance, find and eliminate hidden dangers in time, and establish maintenance records, recording maintenance time, place, content, technical measures, treatment results, maintenance personnel, acceptance personnel, etc.
5, after the completion of the construction project, the demolition of temporary electricity engineering should be unified organization and command, and should stipulate the demolition time, personnel, procedures, methods, matters needing attention and protective measures, etc.
6. Establish a safety inspection and evaluation system. Construction management departments and enterprises should regularly inspect and evaluate the on-site electricity safety according to JGJ59-88 "Scoring Standard for Building Safety Inspection".
7. Establish a responsibility system for safe electricity use, divide the operation, monitoring and maintenance of all parts of the temporary electricity use project into sections, blocks and extensions, and implement them to people, supplemented by necessary rewards and punishments.
8. Establish a safety education and training system. Regularly conduct electricity safety education and training for professional electricians and all kinds of electricity users, and those who pass the examination will hold relevant certificates. It is strictly forbidden to string posts without a license or at will.
9. Strengthen the leadership system for safe electricity use and improve the quality of the electricity technical team.
Three, electrical fire prevention technical measures
1, reasonably configure, set and replace all kinds of protective appliances, and reliably protect the overload and short circuit faults of electrical equipment.
2. Flammable, explosive and corrosive media are not stacked around electrical devices and lines, and no fire source is used.
3. In places where electrical equipment is relatively concentrated, such as substations, power distribution rooms and generator rooms. , equipped with insulated fire fighting equipment, no fireworks.
4. Strengthen the insulation between electrical equipment and phases to prevent flicker.
5. Set up lightning protection devices reasonably.
Four, electrical fire prevention organization measures
1. Establish a management system for flammable, explosive and strongly corrosive media.
2. Establish an electrical fire prevention responsibility system, strengthen the control of fireworks and firecrackers in key places of electrical fire prevention, and set up a sign prohibiting the discharge of fireworks and firecrackers.
3, the establishment of electrical fire prevention education system, regular electrical fire prevention knowledge education and publicity, improve the awareness of electrical fire prevention of all kinds of electricity users.
4, the establishment of electrical fire inspection system, found the problem, handle in time.
5. Strengthen the leadership system of electrical fire prevention and establish an electrical fire prevention team.
The fourth quarter subdivisional work safety technical measures
Article 1 Safety technical disclosure system
1, before the project starts, the safety technical measures should be carefully disclosed to the employees involved in the construction along with the construction organization design, so that the employees can know what measures should be taken at what time and operation, and explain its importance.
2. Before each single project starts, the safety technical measures of the single project must be repeated, and the phenomenon that only the compilers know but the builders don't know must be resolutely corrected.
3. The safety technical disclosure system should be implemented step by step. Before construction, the technical director shall make disclosure to all employees. When two or more construction teams or types of work cooperate with the construction, disclosure shall be made according to the progress of the project. The team leader shall make safety disclosure on the construction requirements and working environment for the workers every day, and must fill in the safety technical disclosure card when issuing the construction task.
Safety technical measures for the second sub-project
A, the ground engineering (fine stone concrete, cement mortar) safety technical measures
1, be sure to wear rubber shoes during operation to avoid pouring cement.
2. There should be enough lighting on the ground at night. Don't move the temporary lighting line casually, and don't hang clothes on the wire.
3. When pushing the transport trolley indoors, especially when turning in the aisle, pay attention to the squeezing of the trolley handle. People are not allowed to go backwards when pushing a cart.
4, clean up the ground, clean up the garbage, etc. , shall not be thrown down by the window, balcony, shaft.
5. When lifting the derrick hanging basket, the derrick safety door must be closed, and the head and hands are not allowed to extend into the derrick. Only when the hanging basket stops can you enter the hanging basket to work.
6, winter construction, if you need to heat the raw material furnace, must be approved by the leadership in charge of fire prevention work, and the implementation of fire prevention measures.
Second, the welder engineering safety technical measures
1, when welding and gas cutting, strictly abide by the "ten no-burning" regulations.
2. Before operation, check whether all tools, welding machines, power switches and lines are in good condition, the metal shell should be grounded safely and reliably, the incoming and outgoing lines should have complete protective covers, and the incoming and outgoing lines should be welded with copper joints.
3, each welder should have a dedicated power control switch. The fuse capacity of the switch should be 0.5 times that of the 65438+ machine. It is forbidden to use other wires instead of fuses. When finished, cut off the power supply.
4, welding arc spark point must be with oxygen cylinders, calcium carbide barrels, acetylene bottles, wood, oil and other dangerous goods distance not less than 10 meters. The distance from the explosive is not less than 20 meters.
5, acetylene cylinder oxygen cylinder should be equipped with safety flashback preventer, rubber pipe joint must be fixed with rolling head.
6, oxygen cylinders, beware of grease, greasy clothes, gloves, etc. Do not touch oxygen cylinders, pressure reducing valves and oxygen hoses.
7. When removing welding slag, the face should not be welded to prevent welding slag from splashing into eyes.
8, often check whether the oxygen cylinder and pound head screws slip, whether the rubber tube leaks, and whether the nozzle and gun body of the welding torch are blocked.
9, pay attention to the safe use of electricity, wires are not allowed to pull, the power cord should be fastened overhead.
10, fire prevention measures should be taken around and below the welding cutting point, and special personnel should be appointed for fire prevention monitoring.
Three, steel engineering safety technical measures
1, steel processing:
(1), machinery must be equipped with protective devices, pay attention to each machine must have a brake and a leakage protection switch.
(2) Keep the roads in the workplace unblocked, and the dangerous parts must be clearly marked.
(3), the operator must hold relevant certificates. Familiar with organization performance and operating procedures.
2, steel bar installation:
(1), when carrying steel bars, pay attention to whether there is any collision danger or being hooked in the front and rear direction, especially to avoid touching the surrounding and up and down wires. Pay attention to safety when lifting steel bars manually.
(2) When lifting or installing steel bars, keep a safe distance from nearby high-voltage lines or power sources. Where there are many steel bars, it is not allowed to operate or stand during a thunderstorm.
(3) When installing steel bars at high altitude, choose a good position to stand firm and fasten your seat belt.
3, steel butt welding:
(1), before butt welding, the sludge and rust on the surface of steel bar and covered electrode shall be removed. Make the electrodes contact well and avoid the phenomenon of "sparking".
(2) After butt welding, don't loosen the fixture prematurely. Don't throw steel joints when the joints are hot. Don't water the high temperature joint. Put the long steel bars on the bench.
(3) The selection parameters of butt welding machine, including power and secondary voltage, should match the butt welding of steel bars. The temperature of electrode cooling water shall not exceed 40℃, and the fuselage shall be well grounded.
(4), flash spark splash base should have good protective safety facilities.
3, steel arc welding:
(1), the welding machine must be well grounded, and it is not allowed to work in a heavy rain environment.
(2) The welding construction site cannot be erected with flammable materials. Safety belts must be fastened and protective equipment must be worn in accordance with the regulations for aerial work on site.
Four, backfill engineering safety technical measures
1. No one is allowed to level the soil within the working range of the loader.
2, tamping machine before work, should check whether the power cord is defective and leakage, mechanical operation is normal, mechanical leakage switch is protected, according to just one switch installation, mechanical operation is not allowed to be sick, the operator should wear insulating gloves.
Five, elevator derrick, safety net erection engineering safety technical measures
1, set a safety net from the second floor, one for every four floors. The safety net must be intact, firm and reliable.
Rachel must be firm. The embedded net reinforcement on the wall is not less than D 14, and the embedded length of reinforcement is not less than 3Qd.
3. The elevator shaft protection safety net shall not be removed at will. After the elevator is installed and the scaffold is erected, it can be removed every time it reaches the height of the safety net.
4. Scaffolding in the elevator shaft should be composed of steel pipes, fastener towers, columns and crossbars, with right-angle fasteners, and the fastening torque of fasteners should reach 4-5 kg. m. ..
5, all stare blankly at both ends of the scaffold, and the wall brace is firm, and the distance between the horizontal stare blankly and the wall is 600 mm on one side of the balance weight and 400 mm on the other three sides. Steel pipes should be added in each row for the gap from the wall, and the spacing is not more than 200 mm. Each row of steel pipes is not more than 200 mm from the surrounding wall. ..
6, scaffolding column spacing is not more than 1.8 meters. The row spacing is 1.8m, and a row of transverse stare blankly is added at the floor level of 200mm at the bottom, with the transverse spacing of 350mm. Spread bamboo basketry, and all bamboo basketry shall be firmly bound with lead wire and steel pipe at four points.
7, scaffolding demolition order must be carried out from top to bottom, demolition of steel pipes, bamboo basketry, etc. It must be properly transported out of the elevator shaft, and littering is strictly prohibited.
8. Scaffolding maintenance personnel must regularly check and maintain the facilities in the elevator shaft, and eliminate hidden dangers in time.
9. When installing a safety net and dismantling the facilities in the well, the operator must wear a safety belt, and the hanging point must be safe and reliable.
Six, metal fasteners double row scaffolding engineering safety technical measures
1, set up double-row scaffolding with metal fasteners, especially for high-rise buildings. The design and installation must be carried out in strict accordance with the national technical regulations for construction and installation safety, Shanghai Construction Bureau's Code for Construction of Double-row Steel Pipe Scaffolds for High-rise Buildings and the requirements of construction organization design.
2. Before erection, steel pipes shall be strictly screened for any serious corrosion or thin wall. Steel bars that are severely bent and split should not be used.
3. Fasteners that are seriously corroded, deformed and damaged by bolt threads should not be used.
4, scaffolding foundation except in accordance with the provisions, must do a good job of drainage.
5. If the high-rise steel pipe scaffold stands on the channel steel, it must be connected with the grounding electrode for protection. The uprights of ordinary scaffolding must have base protection.
6. Socket-type steel pipes should not be used for the vertical rods staggered at the bottom.
7. The tightening torque of all fasteners should reach 4-5 kg? m .
8, the same facade putlog, should be staggered, at the same time, the vertical rod straight up and down.
9, diagonal extension, unfavorable use docking fastener. Lapping shall be adopted and two rotating fasteners shall be extended. According to the spacing between the two fasteners, the lap distance should be not less than 0.4M.
10, high-rise building metal scaffolding rod, unfavorable use lead wire climbing, must use rigid materials in the form of embedded parts.
Seven, template engineering safety technical measures
1. Personnel entering the construction site must wear safety helmets, and aerial workers must wear safety belts and fasten them.
2. Personnel who are not suitable for aerial work after examination by doctors are not allowed to work at altitude.
3. Before work, check whether the tools used are firm. Tools such as wrenches must be hung on the body with rope chains. Nails must be put in the tool bag to avoid falling and hurting people. Concentrate on your work to prevent nails from pricking your feet and slipping in the air.
4. When installing and dismantling the above templates, scaffolding and protective railings should be set to prevent them from operating in the same vertical plane.
5, high altitude, complex structure template installation and removal, should have practical safety measures in advance.
6. In case of strong winds of magnitude 6 or above, outdoor aerial work should be suspended, and the construction site should be cleaned first after snow, frost and rain, and then the operation should be carried out when it is slightly dry and not slippery.
7, two people carry the template to cooperate with each other, work together. Transfer templates and tools shall be hoisted after being fixed by means of transport or rope, and shall not be thrown about. When assembling and disassembling the composite steel formwork, someone should meet up and down. Steel formwork and accessories should be shipped with the installation and disassembly, and it is forbidden to throw them from a height. When dismantling the formwork at high altitude, there should be a special person to direct it. Mark the work area below, enclose it with ropes and red and white flags, and suspend the passage of personnel.
8, shall not be piled up on the scaffold a lot of templates and other materials.
9, bracket, pole, etc. Do not put it on the door window frame and scaffolding. The diagonal braces and tie rods in the middle of the channel should be set above 1. Eight meters high.
10, in the process of shuttering, if you need to stop halfway, you should nail the support, lap joint, stigma plate, etc. During the interval of formwork removal, the movable formwork, tie rod and support should be transported away or properly stacked to prevent falling when stepping on or holding empty.
1 1. If there is a reserved hole on the formwork, it should be covered after installation, and the top hole on the concrete slab should be covered after the formwork is removed.
12. Generally, a long crowbar is used to dismantle the formwork. No one is allowed to stand on the template being demolished. When the floor formwork is dismantled, attention should be paid to the falling of the whole formwork, especially when the finalized formwork is used as the platform formwork. More attention should be paid to the formwork removal personnel to stand outside the doors and windows to prevent the template from suddenly falling off and hurting people.
13. When using wires and electric tools erected on composite steel formwork, 36v bottom voltage power supply or other effective safety measures should be adopted.
14. It is forbidden to use 2x4 "wooden formwork or steel formwork as the riser when disassembling the formwork.
15. Scaffolding or operation desk should be set up for aerial work. Use ladders up and down, and it is forbidden to stand on the wall to work. It is not allowed to walk on the bottom formwork of the girder. Operators are forbidden to wear hard-soled shoes and high heels.
16, when loading and unloading the template, the operator should stand in a safe place to prevent working in the same vertical plane; Operators should take the initiative to avoid hanging objects and enhance the safety awareness of self-protection and mutual protection.
17, formwork removal must be completed at one time, and unsupported formwork cannot be left. Remove the template to clear in time, neatly stacked.
Eight, masonry engineering safety technical measures
1. Before operation: it is necessary to check whether the working environment meets the safety requirements, whether the roads are clear, whether the machines and tools are intact and firm, and whether the safety facilities and protective equipment are complete. Only after inspection meets the requirements can construction be started.
2, build by laying bricks or stones foundation, should always check and pay attention to the change of foundation pit soil, whether there is a crack phenomenon, stacked brick materials should be more than 1m away from the pit, when the deep foundation pit is equipped with baffle support, operators should set ladders up and down, and shall not climb and jump, transport materials shall not collide with support, and shall not trample on masonry and support up and down.
3. When the wall masonry height exceeds 1.2m on the floor, scaffolding shall be erected. When the height of the first floor and above exceeds 4m, the inner scaffold must be provided with a safety net, and the outer scaffold should be provided with protective railings, which can only be erected after being closed with a vertical net.
4. The stacking amount on the scaffold shall not exceed the specified load, and the stacking height of bricks shall not exceed 3 leather side bricks.
5, in the floor (especially the precast slab surface) construction, stacking machinery, bricks and other items shall not exceed the service load, such as more than the load, must go through the checking calculation to take effective reinforcement measures before stacking and construction.
6, are not allowed to stand on the top of the wall to do scribing, scraping seam and cleaning the wall or check the big Angle vertical, etc.
7, are not allowed to use unstable tools or objects on the scaffolding pad high homework, more are not allowed to be in the case of unreinforced, on a layer of scaffolding to overlay a layer at will, scaffolding are not allowed to have the phenomenon of lack of material, are not allowed to use 2*4 thick wood or steel template as a riser.
8, when cutting brick should face the wall, pay attention to the broken brick jump out of cuts.
9. Hanging cages and ropes used for vertical transportation must meet the load requirements, be firm and undamaged, and must not be overloaded when lifting. If problems are found, they must be checked regularly and repaired in time.
1 1. The distance between two brick-carrying vehicles shall not be less than 2m on the flat road and10m on the ramp. When loading bricks, take the high place first, and then take the low place to prevent the collapse from hurting people.
1 1. For gables that have been laid, tie rods (such as strips) should be temporarily placed on each gable to stabilize the connection or take other effective reinforcement measures.
12. When crossing up and down in the same vertical plane, safety partitions must be set, and operators must wear safety helmets.
13. Manually transfer bricks vertically up or down (deep pit). The width of the standing board on the shelf should be not less than 60 cm.
These are all important.
These are all important.