A, engineering construction safety management measures
1, prepare for site safety.
Before entering the site, you should be familiar with the surrounding environment, including dangerous places and objects such as high and low voltage lines. The project manager must seriously study the knowledge of site safety management to ensure the safe operation of construction. The project department shall conduct safety training for construction personnel according to regulations, and establish and improve safety education records.
2, strengthen the safety management measures of foundation engineering construction.
After the foundation pit is completed, a protective railing with a height of 1.2-l.5m shall be erected around it, painted with red and white paint, and a safety net and a water retaining wall of not less than 30cm shall be set outside the railing. Materials entering the site should be piled up at the edge of the foundation pit, and the slope protection should be inspected regularly, and the observation results should be recorded when necessary, and the problems should be remedied immediately. Educate construction personnel not to throw materials from the top of the foundation pit when cutting them into the foundation pit. The tower crane must have special tools or bundles, and the signalman commander should seriously implement the "Ten Don't Hoist".
3. Strictly manage the structural safety above 0.00.
According to the structural form, the technical department designs the scaffold and checks the safety of the scaffold, draws the construction drawing in advance, reviews and approves it, and then carries out safety technical disclosure. The scaffolder is trained and holds relevant certificates. Construction is generally divided into several running water areas, and temporary protective railings should be made between the areas. A fixed protective fence with a height of 1.2m is set at the opening of the structure and painted with red and white paint. Formwork support and formwork removal: Formwork support shall be carried out in strict accordance with operating procedures. When top bracing and full framing are used, two or more people should cooperate, and the beam should be reliably protected when binding steel formwork, and there should be full-time nursing staff when ripping. Construction personnel should have the spirit of cooperation and clean up in time after demolition. The structural reserved holes on the floor slab shall be sealed with fixed seals (it is strictly forbidden to disconnect the steel bars). The elevator wellhead should be equipped with an open protective door, and the well should be closed by interlayer or every two floors with a safety net, and the sundries in the net should be cleaned up in time. Protective railings are set around the mouth of the cave, and protective sheds are set up at the mouth of the cave, with a length of 6m and a width of 1m on both sides of the cave. All adjacent openings shall be provided with guardrails. In any case, put an end to up-and-down interchange operation. If this happens, one party should be ordered to stop according to the urgency of the project.
4. Improve the safety management of decoration engineering.
(1) Pay attention to the safety of people and machinery around when decorating. Set up temporary shelves to achieve safe use. Use external frame for construction. Construction can only be started after the design scheme is approved and signed. Scaffolding should be fully sealed, and the safety flat screen should be tightly closed. The clearance between the safety flat screen and the wall should not be greater than 20cm. Lap joints set according to specifications: the horizontal distance is not more than 6 meters, and the vertical distance is not more than 4 meters. Small bars should be set continuously. Multi-layer bracing is a group of frames with no more than 15m, and the bracing span is not less than 4 spans (6m) and more than 25m. The bracing of frames must be continuously set up from top to bottom, left and right. Full-house scaffolding for indoor decoration shall be erected in strict accordance with the requirements. Scaffolding shall be spread all over, leaving no gaps. After work, the site shall be cleared. Two protective railings shall be tied to the exposed part of the limb, with a height of1.2m. The entrance is strictly required: the steel bars shall not be disconnected, and other openings that need to be reserved must be provided with guardrails, safety nets or hard protection (such as elevator exits and reserved openings of back stairs, etc.). ).
(2) the use of hanging basket
(1) Before work, the hanging basket is in place and put into use.
1) The joint acceptance inspection visa must be carried out by the technical personnel of the property right unit, the construction unit and other relevant departments. It can only be put into use after being confirmed by the on-site supervision engineer.
2) The entire acceptance process must be attended by on-site operators and monitoring personnel, and technical disclosure shall be made to the on-site production director, safety director and operators.
3) The hanging basket safety inspection and acceptance shall be in the form of table and put in place according to the requirements of the checklist.
② Hanging basket operation site
1) There must be operating rules, safety operating rules and public signs. The public notice board shall indicate the number of counterweight, limited load, the person in charge of production, the person in charge of safety (or guardian) and the operator.
2) The hanging basket, hanging basket bracket (seat) and operation scope shall be provided with obvious warning signs.
3) In the hanging basket operation site, other construction operations and cross operations are not allowed, and materials and other sundries are not allowed to be piled up.
4) Above and below the working part of the hanging basket, supervisors should be arranged to be on duty, wear armbands and hang work certificates. Guardians shall not be arranged to do other work.
③ Operation and management of manned hanging basket
1) Hanging basket operators must be qualified personnel who have received safety training and technical training, and hold relevant certificates.
2) Hanging basket operation shall comply with the relevant provisions of the national lifting safety technical regulations. Strictly implement safety operation procedures and operation procedures, and it is strictly forbidden to operate illegally.
3) Operators entering the hanging basket should be clear about their job responsibilities and master what this type of work should know. The team leader must be a qualified official employee of the unit. There should be a special person to command, the command signal should be clear, eye-catching and clear, and the signal tools should be complete and effective.
4) In case of severe weather such as gale, rainstorm, fog and heavy snow above level 6, stop hanging basket operation.
④ Regular maintenance system and safety inspection system before construction must be established. Maintenance and pre-work inspection shall be recorded and signed.
1) Regular maintenance must be undertaken by full-time maintenance personnel, who must obtain the qualification certificate recognized by the national labor department.
2) Forework safety inspection adopts foreman succession system, and construction can be started only after the foreman has passed the inspection.
3) When safety inspectors and production operators find that there are many or serious hidden dangers in the hanging basket, they should immediately stop the operation, report to the relevant leaders, and assign qualified personnel to rectify the hidden dangers. It is forbidden for unqualified maintenance personnel to carry out hanging basket maintenance.
4) It is forbidden to carry out hidden danger rectification and maintenance inspection on the hanging basket in suspension state; It is forbidden to work in the hanging basket "with illness".
⑤ After the hanging basket completes the construction task in one operation surface, it is moved to another construction site and installed in place. It must be accepted and signed by the technical personnel of the property right unit, the construction unit and other relevant departments, and confirmed by the on-site supervision engineer before it can be put into use.
6. It is forbidden to use doors, tower cranes and car cranes to hang manned hanging baskets.
Safety management of construction machinery
The property right unit of large machinery (such as tower crane and construction elevator) must have relevant machinery leasing qualification. Before the machinery enters the site, it must be inspected by a special machinery inspection department, and be informed to put it on record in the construction engineering quality and safety supervision department to obtain the machinery use certificate.
(1) Tower crane safety devices (four limits and two insurances) shall be complete, sensitive and reliable, and shall be tested irregularly.
(2) The foundation installation and use of the construction elevator shall conform to the original factory regulations, and there shall be acceptance procedures. It can only be used after inspection, and it should be tested regularly during use. Construction elevator safety devices should be complete, sensitive and reliable, and carry people with rated weight.
(3) The frog rammer must be operated by two people. Operators must wear insulating gloves and insulating rubber shoes. The operating handle should be insulated. The power supply should be cut off after the rammer is used. It is forbidden to remove accumulated soil when the rammer is running.
(4) Oxygen cylinders should be protected from sun exposure and inversion, and the distance between them and gasoline, oxygen and acetylene bottles should not be less than 5 m at ordinary times, and the distance between two bottles should be greater than 1Om when they are welded at the same time.
⑤ Install protective covers on the saw disc and transmission parts of the chainsaw, and set up safety devices and distributors. Where the length is less than 50m and the thickness is greater than the radius of the saw disc, it is forbidden to use the chainsaw.
6 grinder should use reversing switch. The grinding wheel must be equipped with a protective cover not less than 180 and a solid workpiece support. It is forbidden to use grinding wheels that are not round, cracked and worn, and the thickness of the remaining part is less than 25ram.
All landowners planer safety protection device is complete and effective.
⑧ The surface of spreader and wire rope is worn, corroded, broken wires exceed the standard, dead bends and broken strands are not used, and the oil core is exposed.
Pet-name ruby hook in addition to the correct use, should have a safety device to prevent decoupling, rings in use, should make the pin shaft and rings bottom stress, lifting large mold, concrete bucket and precast wallboard, etc., must use rings.
6. Strengthen the safety protection management of temporary electricity consumption.
Temporary power consumption must be organized and designed according to the specification requirements, and necessary files and materials should be established. Temporary electricity use must establish a regular inspection system for on-site lines and electricity facilities, and the inspection and inspection records should be filed for each inspection. Temporary power lines must be buried according to the specifications, with a trench depth of not less than 60 cm, fine sand with a thickness of not less than 5 cm laid up and down, and a hard protective layer laid on the upper surface. Overhead lines use insulated wires and insulators, and laying along the ground is not allowed. The distribution system must implement three-level distribution and two-level protection. The appearance of all kinds of distribution boxes should be kept intact, firm, rainproof and dustproof. The box body should be painted with safety color, and there is no sundries in the box. When the distribution box stops running, cut off the power supply and lock the door. The distribution system must adopt three-phase five-wire zero protection system according to the Ministry standard, and the metal shell, metal bracket and base of all kinds of electrical equipment and construction machinery should adopt reliable zero connection or grounding protection according to regulations. At the same time, two-stage leakage protection devices must be set up, and graded protection should be implemented to form a complete protection system. Leakage protection devices should be selected according to needs. All kinds of tall facilities are equipped with lightning protection devices according to regulations. The use of hand-held electric tools conforms to the relevant provisions of the state. Ensure that the power cord of the power tool is intact. The power cord can't be extended and replaced at will, the external insulation of the tool is intact, and the special person is responsible for maintenance and storage. When 220V power supply is used for lighting in general places, a leakage protector should be installed on the power supply side as required, and safe voltage illuminator should be used in special places according to national standards. The electric welding machine should have a separate switch, and the shell of the electric welding machine should have zero connection or grounding protection. The length of primary line should be less than 5m, and the length of secondary line should be less than 30m. Wiring on both sides should be firmly connected and a reliable protective cover should be installed. The handle wire is in place with two strands. Metal pipes, metal scaffolding and structural steel bars are not used as loop ground wires. Handle wires are in good condition and well insulated. The welding machine should be installed in a leak-proof, rain-proof and smash-proof place.
Second, the fire safety management measures
(1) In any construction area of the construction site, electric furnaces, iodine tungsten lamp and other heating facilities are strictly prohibited without the approval of the leaders.
(2) Strictly go through the examination and approval procedures for open fire on the construction site. If you need to use naked flame, you can apply on the same day, indicating the place, the way of using fire, who uses fire and fire prevention measures. Hot work can only be carried out after the management personnel agree, and a site guardian is set up. Whenever the site can't guarantee the safe use of fire or there is a strong wind above level 5, put an end to the use of open flames.
(3) Electric and gas welders, painters, electricians and carpenters shall operate in strict accordance with relevant regulations.
(4) Other types of work should be carried out under the condition of ensuring construction safety, and work can only be carried out under the condition of ensuring no open flame. Special emergency engineering work can only be carried out after being signed by management personnel, otherwise work is not allowed.
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