A. Detailed description and commitment of demolition service content

B. Site management and coordination measures

C. Demolition fund management and control measures

D. Demolition schedule management and control measures

E. Dismantle safety management and control measures

F. Control measures for dismantling document preparation and filing by sorting machine

G. On-site organization and management institutions

H. Service commitments

I. Other information

China Youshi University (Beijing) South Canteen and School Hospital Project

Construction scheme of demolition project

I. Overview of the Project:

1. 1 project name: demolition project of the south canteen and school hospital of China Youshi University (Beijing).

1.2 Project Location: China Youshi University (Beijing) Campus.

1.3 demolition scope: south canteen-east demolition scope: inside the fire escape on the east side of south canteen; West to: the inner side of the road on the west side of the south canteen; South to: in the road on the south side of the south canteen; North direction: the inner side of the fire escape on the north side of the south canteen.

Demolition scope of the school hospital-all buildings and structures in the roads around the school hospital are demolished.

1.4 demolition scale: the south canteen is about 2 1 18 square meters, and the school hospital is about 2,342 square meters.

1.5 structural form of buildings to be demolished: bungalows and buildings;

1.6 quality requirements: all kinds of buildings and structures shall be removed to the natural terrace of 0.5m, and the foundations of buildings and structures shall be removed to the natural terrace 1m (when the school hospital is removed, all basements and basement foundations must be removed, and then the foundation pit shall be leveled with broken muck), and the muck shall be removed to the slag receiving yard, and civilized construction shall be carried out during the removal process to prevent dust. The entire demolition area shall be leveled, and the flatness shall not exceed+15cm.

Second, the quality policy and quality objectives

Our company's general quality policy: scientific management, careful construction, quality first, Party A's satisfaction, and the quality objectives of this project:

1, and the excellent and good rate of each sub-project is over 95%.

2. The fulfillment rate of the commitment to Party A is 100%, and the satisfaction rate of Party A reaches 98%.

3. Pay attention to quality improvement to ensure the effective operation of the quality management system.

Third, the main target commitment guarantee

In order to ensure the safety and smooth progress of the project, our company specially selects excellent project managers and engineers to cooperate with advanced demolition technology and mechanical equipment to ensure the fulfillment of the target commitment.

1. quality: ensure safety, dismantle on schedule, carry out civilized construction and environmental protection construction.

2. Safety: ensure the safety and accident-free demolition, and create a "excellent project for safe production".

3. Civilized construction: focus on controlling and reducing noise and dust, and focus on solving nuisance and dust prevention, and create a "civilized model construction site".

Four, the preparation work before construction:

1. Conduct detailed written technical disclosure, provide drawings and geological data of the original building, cut off and block all water, electricity, ventilation and other lines and various pipelines leading to the demolished area.

2. Withdraw the required equipment and materials. After the construction starts, off-site construction personnel are not allowed to enter the site to prevent safety accidents.

3. At the construction site, Party B shall prepare a water wheel for dust prevention before dismantling.

4. Organize relevant construction personnel to discuss and study, and prepare the construction organization design.

5. Prepare necessary machinery, equipment, materials and personnel according to site conditions and engineering arrangement. , and do a good job of safety identification and command of key intersections in advance.

6. Before starting work, the construction personnel participating in the project should seriously accept the technical disclosure of the demolition area and the written disclosure of the above-ground and underground obstacles, and both parties should make records. Organize foreman, safety officer and construction personnel to be familiar with and master the construction scope and structural characteristics, understand the obstacles on the ground and underground, formulate safety measures, and strictly record the safety and construction technology.

7. Dust prevention measures must be taken in demolition construction, and low noise and dust construction methods should be adopted in the construction site.

Verb (abbreviation of verb) construction sequence and method:

(a), the construction sequence

1. 1, principle: demolition method of "top first, bottom first, inside first, outside first, non-bearing first, bearing structure later".

1.2, safe construction, due diligence, not forgetting safety.

1.3, unified management, planned construction, responsibility to people, and muck transportation.

(2) Demolition construction method

The South Dining Hall is a one-story prefabricated floor structure, and the demolition method is as follows:

Demolition technology of the first floor of precast slab structure: demolition of doors and windows-demolition of waterproof layer-demolition of insulation layer-demolition of floor by hanging-demolition of broken walls-broken beams and columns.

For the first floor building within the scope of demolition, hydraulic picks can be used for demolition, and the construction steps are as follows:

Manual demolition construction:

1, cut off the power supply and water, gas and other lines and pipelines.

2, completes the construction site Dang Wei, determine the construction scope and area.

3. Organize manpower to clean up the reusable materials in the building in advance for reuse.

4. Transport the tools used by the demolition personnel to the site for manual demolition.

5. Transport oxygen and acetylene to a safe place on site.

6, artificial cooperate with machinery to pick up waste materials.

7, using artificial demolition of outdoor building decorations.

8. Sprinkle water on the buildings to be demolished in advance to reduce dust.

9, artificial stripping roof waterproof layer, thermal insulation layer, sound insulation layer and other surface structures, and different structures after the demolition of debris classified storage, separate bags transported to the ground, and classified consumption, to prevent pollution to the soil.

10. For the roof of cement precast slab structure, the roof slab shall be peeled off manually first, and then lifted to the ground by crane; For the cast-in-place structural roof, it can be demolished directly.

1 1. Manually demolish the east and west color steel houses on the north side of the south canteen.

12. The connecting part between the south canteen and the computer room was separated by a professional with a diamond drill, and then the building to be demolished was demolished.

Mechanical demolition construction:

1. Directly use hydraulic pickaxe or excavator to roll down the external wall and internal wall structure from top to bottom until the beams and columns remain.

2. After the remaining beams and columns, the beams and longitudinal beams will be broken; Broken column. Demolition should be carried out in strict accordance with the top-down order. Collapse and demolition are prohibited to reduce the generation of dust.

3, for beams, columns and other large pieces of disintegrated building components that need secondary crushing, use hydraulic picks to crush them.

4. When the excavator overturns once, the unbroken beams, columns and residual walls are left in the building, and then the second crushing is carried out with a crusher.

5. Crusher will remove the bottom two floors of the excavator after cleaning in the same way as above, and remove them to indoor level, and then overthrow the muck.

6. Use excavators to pile muck, and organize dump trucks to transport muck out in a planned and step-by-step manner.

7. Clean up the construction site, remove the enclosure and level the site until Party A is qualified.

(3) Steps to dismantle the school hospital

1, construction process:

Set up enclosure → cut off water, electricity and gas → remove door and window appendages → protect flowers and trees → demolish the building → demolish the basement → transport dregs outside → level the site.

2, the construction principle:

The demolition method of load-bearing structure should follow the principle of "first up and then down, first inside and then outside, first non-load-bearing".

3, the construction method:

3. 1 Install the shell

Before each building is demolished, a hard enclosure should be erected for protection, and safety signs should be posted in eye-catching positions to ensure the safety of non-construction areas.

3.2 No water, electricity and gas

Before each building is demolished, all water, electricity and gas in the building to be demolished shall be blocked and cut off by full-time water, electricity and gas personnel in accordance with the operating technical specifications.

3.3 Remove the door and window accessories

Workers' picks, crowbars, sledgehammers and other tools, as well as doors, windows and heating in the building, will be removed and transported to the site material stacking area, packed neatly and shipped out in time. All kinds of pipelines in the building will be cut and removed when they are clearly disconnected again, and transported to the material area in time.

3.4 Protection of trees and flowers

Before each building is demolished, the branches of trees should be tied tightly with straw ropes or boards to prevent scratching flowers, grass, etc. , you should also use wooden boards for support and protection.

3.5 Building Demolition

Before each building is demolished, it is necessary to check each room with security personnel and confirm that there are no personnel before the demolition operation can be carried out. When the building is demolished, the gate should be tightly sealed to prevent others from entering, and the safety officer should patrol. When the situation is found, the driver should be informed to stop the operation immediately by walkie-talkie.

Because the south of the building is close to the trees, the walls should all fall to the north and be demolished bit by bit to avoid large-scale collapse. At the same time, two waterwheels should be used to reduce dust and protect the surrounding environment. After the main body is demolished, the cement beams, columns and residual walls are crushed by Daewoo 300 excavator, and iron bars and iron filings are thrown out at the same time. When away from machinery, people will use gas cutting to cut and detect steel bars. When cutting in the material stacking area, firefighters should follow the operation with bucket fire extinguishers. After the surface is broken and cut, the excavator will turn it over for the second time with a bucket and then break it with a hammer. Workers will cut and pick up the steel bars for the second time until they are completely turned into muck, so as to facilitate the loading of muck, and the old materials in the material area will be cleared out in time.

Holding a Daewoo 300 excavator, with a broken hammer, standing on the edge of each building, using the site, the building was demolished, so that all the removed walls fell in. If it is broken, it will be dismantled a little, but it cannot collapse in a large area. At the same time pay attention to the surrounding trees, lawns, etc. At the same time, water truck will be used to spray water to reduce dust, and steel bars will be thrown out at any time during demolition. Workers should stay away from mechanical cutting, and professional firefighters should carry buckets and fire extinguishers with them when cutting. After the upper part is broken, the excavator bucket is turned over for the second time, and the workers cut and pick up the steel bars for the second time. The waste steel bars are picked up in the stacking area and removed in time.

(4) Demolition of the basement

The basement roof was completely removed by hydraulic hammer, and the partition wall was removed at the same time. A slope was built on one side of the main building. When hydraulic hammer entered the basement, the bottom plate was removed first, and then the outer wall was pulled down and removed in sections.

When removing the basement exterior wall, communicate with Party A in advance to prevent the external earthwork from collapsing and accidents.

After the basement is completely demolished, load it with an excavator and transport all the muck out of the basement.

(5) Demolition scheme of key parts

1. Demolition of the pipeline part of the building

Before the building is demolished, protective measures shall be taken for the construction roads, underground pipelines, electric power, communication lines and trees on the ground in the demolition area.

1. 1 Confirm and mark underground pipelines, electric power and communication lines on the ground.

1.2 cut off the power supply and signals of the power supply and communication lines, make eye-catching marks on the power supply and communication lines that cannot be cut off, bypass the lines when choosing the construction site, and designate special personnel to take care of them.

1.3 Before demolition, the underground pipelines on the construction site shall be covered with thick steel plates or planks, and the collapse mode shall be avoided as much as possible when demolition, and the pipeline facilities will be damaged by houses.

2. Demolition of buildings adjacent to trees

If there are trees in the demolition area that need to be protected, the following protective measures can be taken:

2. 1 During demolition construction, the location far away from trees should be selected as the operation point.

2.2 hold people accountable for the construction to prevent the trees from being damaged during the construction.

2.3 Close to the green belt of the demolished building, cover or enclosure protection can be taken when necessary.

3. Demolition of adjacent reserved buildings

When demolishing the buildings adjacent to the reserved buildings, the following measures can be taken:

3. 1 If there is a connection with the reserved building, the connecting part can be cut and separated by cutting equipment, and the isolation belt with a width of more than 2 meters can be removed, and then the demolished building can be demolished on a large scale.

3.2 If the demolished building is adjacent to the road, the demolished area and road must be closed before construction, and safety warning signs should be hung, full-time safety personnel should be assigned to take care of it, and pedestrians and vehicles should be commanded to bypass it to ensure safety.

3.3 In order to ensure the safety of buildings outside the demolition area, manual demolition can be considered for key parts, which can ensure the safety of adjacent buildings under key protection outside the area.

(6) Stacking and removing muck

After the building is demolished, the generated muck will be piled up in different areas, and the piled muck will be covered with green nets and sprinkled with water to prevent dust. Then leave in time.

In order to ensure the requirements of construction progress, we will actively go through the formalities of muck consumption after construction, and make consumption according to the designated muck consumption places in the city. At the same time of mechanical demolition, organize dump trucks to remove muck. Before loading, it is necessary to organize backhoe and hydraulic hammer to crush and pile up the muck, in which the backhoe turns the muck before, and the hydraulic pick is separated from it by a bay for secondary crushing. This process can be repeated until the requirements of muck transportation are met.

When loading soil mechanically, it shall not exceed the car slot. During the transportation of muck, ensure the cleanliness of the site and roads, and ensure that the loading does not overflow and the transportation does not leak. When transporting muck, a special frame shall be erected outside the muck loading port. When the muck truck passes by, the excess muck shall be transported away, and straw bags shall be laid on the ground at the entrance and exit, that is, full-time cleaners shall be sent to clean the dust and muck on the wheels and car bodies. Before the end of daily operations, the entrance and exit where the vehicle passes shall be thoroughly cleaned to meet the requirements of road cleaning on the construction site.

Beijing Hua Gang Building Demolition Engineering Co., Ltd.

2010 65438+February 8,

Six, China Youshi University (Beijing) south canteen, school hospital demolition project.

Organization of project department and allocation of manpower and machinery.

(a) the project management organization chart:

(II) Responsibilities of personnel in main positions of on-site organization:

1. Project Manager: Take full responsibility for the safety production and quality of contracted projects, meet the requirements stipulated in the contract, implement the company's quality system documents, preside over the preparation and implementation of the construction organization design or construction scheme of this project, preside over the project completion acceptance, and clarify the functions and division of labor of personnel in various departments. Responsible for contacting Party A and the supervisor, and organizing the inspection, evaluation and rectification activities of the project quality.

2. Technical person in charge: responsible for the technical work of this project, preparing the construction organization design of this project and the construction scheme and supplementary scheme of partial and sub-projects; Assist the project manager to manage and control the project quality, deal with design changes and negotiations, and implement the changes; Responsible for the implementation and management of new processes and technologies in the project.

3. Professional foreman: responsible for the specific implementation of the construction plan, the implementation of the construction plan and the arrangement of on-site work. According to the construction organization design or construction scheme and design requirements, check the implementation of the construction team and correct those who violate the operating rules; Fill in the construction records of key processes, prepare the safety disclosure sheet, be responsible for keeping the technical data and documents of this position, and participate in the compilation and sorting of completion data.

4. Full-time safety officer: safety management is carried out according to the principle of "prevention first", which is mainly reflected in the following three aspects:

Security patrol

All responsible persons (mainly full-time safety officers) of the project safety organization shall conduct daily safety inspection under the leadership of the project safety officer. All responsible persons should strictly inspect the parts that may cause safety and stability in their respective areas, give safety tips to construction personnel, and investigate and report safety violations at any time.

Safety report

All responsible persons (mainly full-time safety officers) in the safety management organization should fill in the safety daily report according to the regulations, report to the project safety director, put forward a statistical report on the inspection results of safety hazards on that day, and put forward analysis factors and preventive measures for the production activities on that day. On the premise of no major safety accidents at the site, full-time safety officers shall prepare weekly safety reports, which shall be submitted to the safety director and the superior safety department after being approved by the project manager. Major safety accidents on site should be reported to the superior in strict accordance with the reporting procedures stipulated by the state.

Analysis meeting

Hold a weekly safety analysis meeting with Party A or its designated representative, or hold a safety analysis meeting in an agreed form within the time agreed by both parties, analyze the safety work of the current month, propose the rectification time of potential safety hazards, propose preventive measures for future safety work, analyze safety accidents, put forward punishment opinions for the units and individuals responsible for accidents, and put forward new guiding opinions for safety work next week.

(3) The relationship between the company headquarters and the field organization.

Combined with the management mechanism of domestic engineering contracting, the commitment to the project manager is realized by establishing a scientific project management system with the responsibility engineer system as the main body and the services of the functional departments of the headquarters as the supplement, and improving the management procedures in quality, technology, planning, cost and contract. At the same time, according to the characteristics and needs of the project, fully optimize the combination of social resources, select first-class demolition machinery, equipment and vehicles at home and abroad for construction, and ensure that the project implementation and quality reach first-class standards.

The control of the head office on the on-site organization: Our unit has established a perfect management system and decision-making body to supervise, adjust, improve services and effectively control the project in an all-round way, so as to standardize the project management.

Project authorization management: the enterprise legal person authorizes the management of the project, and the project manager, as the representative of the enterprise legal person, exercises his powers within the scope of authorization to realize the decision-making intention of the headquarters and the contractual commitment of the enterprise to the project manager.

Professional construction guarantee: give full play to the comprehensive technical strength of our unit, and professional mechanical equipment provides professional guarantee for project construction and contract management.

(IV) The authorized scope of the company's headquarters for the personnel in the main positions on site

Project manager: authorized to be responsible for the overall work of the website.

Person in charge of production: the authorized person carries out daily management, statistics and supervision, decomposes construction production and project progress, and completes the construction period on time;

Technical person in charge: authorize and guide all demolition technologies in the process of demolition;

Person in charge of quality: authorized to ensure the project quality during the demolition construction;

Person in charge of safety: authorize the removal of all safety during construction and on site, and formulate various safety measures; Carry out the implementation of on-site environmental protection measures; Ensure that all environmental protection measures are put in place.

(five) the main management personnel to be sent to the site:

1 Project Manager

The total number of workers is 1.

Two workers.

3 full-time security officers

Environmental protection 10 people

Staffing in operation

Electrician 10 person

Plumber 15 people

5 gas welders

50 strong workers

Construction machinery and equipment

Hitachi hydraulic hammer 3:

30 sets of 20T dump trucks;

3 cranes:

Extend 5 Dongfeng units:

Dongfeng five scattered cars:

1 Emergency vehicle:

Beijing Hua Gang Building Demolition Engineering Co., Ltd.

2010 65438+February 8,

Seven, China Youshi University (Beijing) south canteen, school hospital project.

Quality objectives and quality assurance measures of demolition project

1, quality assurance system

2, quality assurance measures:

In order to ensure the excellent quality of the demolition project, this project has formulated specific quality assurance measures, which are expected to be strictly followed by all construction personnel.

2. 1 Before construction, management personnel should carefully study the construction specifications, process standards, design requirements and construction organization plan, so as to know fairly well.

2.2 do a good job in the technical disclosure of construction personnel and educate the participants on quality and safety.

2.3 The change of construction technology shall be agreed by both parties through consultation, and the change of engineering design shall be subject to written notice.

2.4 Construction materials and mechanical equipment shall be accepted before entering the site.

2.5 Before starting work, the post responsibility system for technical quality shall be formulated, and the chief engineer shall be fully responsible for quality supervision and inspection, and be responsible to Party A and the project department to ensure that the quality reaches the standard.

2.6 In the process of construction, technicians shall be arranged for on-site supervision and inspection, and records shall be made.

2.7 After the demolition is completed, organize relevant technical and production personnel to arrange site leveling, so that the site is leveled, the appearance is neat and the quality is up to standard.

Beijing Hua Gang Building Demolition Engineering Co., Ltd.

2010 65438+February 8,

Eight, China Youshi University (Beijing) south canteen, school hospital project.

Demolition schedule

(A) the demolition schedule system

After understanding the actual situation of the project site, in view of the construction difficulty characteristics of this project, according to our company's mechanical equipment and technical force, we plan to invest enough personnel and mechanical equipment to complete this demolition task.

The construction period of this project is 15 calendar days to complete all demolition and related tasks. And promised to complete all the construction links of this project in advance or on time within the planned construction period, and complete the construction tasks with good quality and quantity according to Party A's requirements, so as to ensure the completion acceptance standards are met.

(2) schedule control measures:

1. Make a feasible construction preparation plan, arrange and organize the construction process scientifically and reasonably, establish a strict responsibility system and inspection system for preparation, and ensure that the subdivisional work is planned, divided, arranged, inspected and completed as planned.

2. The company will make every effort to give priority to manpower and material resources to ensure the construction progress and make it completed as planned.

3. Strictly monitor the engineering quality of each working procedure to ensure that each working procedure can survive once and avoid rework, thus ensuring the construction progress.

4. Promote the methods of overall planning management and dynamic management, adhere to daily balance, and hold regular production planning and dispatching meetings to ensure the implementation of the construction plan.

5, elaborate organization, elaborate construction, strengthen the control and coordination of the construction site, advance prediction, timely solve the contradictions in labor, machinery, equipment, process handover, materials, funds and other aspects that may occur during the construction process, so that the construction process is tense and orderly, and the production is balanced and orderly.

6, according to the requirements of the total construction schedule, make a detailed daily plan. Strengthen the scientificity and seriousness of the plan, and consider the influence of various unfavorable factors when making daily plans to ensure the effectiveness and feasibility of the plan. Once it is found that the daily plan lags behind the overall schedule, it should be adjusted in time, and corresponding remedial measures should be taken to make a feasible plan to ensure the realization of the overall schedule.

7, in order to ensure the realization of the planned objectives, all departments must closely cooperate and coordinate, the supply of materials and equipment, the deployment of labor, the cooperation of professional teams, etc.

8. The construction team of the project department must organize the construction in strict accordance with the requirements of construction procedures and construction specifications. In each stage of construction, the construction flow section should be reasonably divided to form flow construction, so as to ensure the continuity of engineering construction.