Safe production work civilized construction construction organization design

Safety Construction Organization Design

Basis of preparation

1. "Work Safety Law of the People's Republic of China" (Presidential Order No. 91);

2. "Regulations on the Management of Work Safety in Construction Projects" (State Council Order No. 393;

3. "Safety Hats" GB2811-2007; "Safety Belts" GB6095-85; "Safety Regulations" Network》GB5725-1997;

4. "Safety Regulations for Hoisting Machinery" GB6067-85;

5. "Technical Specifications for Safety in Construction at Heights" JGJ80-91;

6. "Technical Specifications for Temporary Electricity Safety at Construction Sites" JGJ46-2005;

7. "Construction Site Environment and Hygiene Standards" JGJ146-2004

8. Construction drawings of the main enclosure structure of Huanghe East Road Station

9. Geotechnical engineering survey report of Huanghe East Road Station

10. Other current national and local laws and regulations. Standards and specifications.

Chapter 2 Safety Production Management Objectives

In order to better implement the principle of "who is in charge, who is responsible" and "safety management". The safety work requirements of "self-examination, self-elimination of hidden dangers, self-responsibility, and acceptance of supervision" promote the steady development of all work. According to the spirit of the company's safety work meeting, on the basis of analyzing the safety construction management work of our project department and taking into account the actual situation, we formulated Objectives of safe construction management.

The overall requirements for safe construction management are: adhere to the scientific outlook on development, conscientiously study the "Safe Construction Law", "Fire Protection Law" and other laws and regulations and the spirit of relevant company documents, Adhere to the policy of "safety first, prevention first, comprehensive management", continuously strengthen the supervision and management of safe construction and reward and punishment, and from the political perspective of protecting the lives of workers and the safety of national property, through publicity, education, training, inspection and signing Safe construction responsibility certificates and other forms shall be used to fully implement the main responsibility for safe construction, establish and improve a long-term mechanism for safe construction management, and ensure the realization of safe construction management objectives.

2.1 Casualty accident control objectives

1. There are no serious casualties.

2. There are no major fire accidents.

4. There are no major traffic accidents. The occurrence of malignant injuries at the construction site

5. Keep the rate of work-related casualties to zero

2.2 Responsibilities and Tasks

1. Adhere to "safety." First, with the policy of "prevention first, comprehensive management", safety responsibility systems, rules and regulations, operational safety specifications, and safe operating procedures at all levels are improved.

2. Equip full-time or part-time safety officers as required to ensure Construction is carried out safely and stably.

3. Funds for safety and quality measures are extracted and used correctly according to regulations

4. Potential safety hazards are rectified in a timely manner.

5. Improve the working conditions and working environment of workers.

6. Adhere to the safety inspection system and conduct inspections no less than twice a month.

7. Adhere to the principle of "whoever is in charge is responsible; whoever is on duty is responsible" and increase the implementation of the safety construction responsibility system.

8. Strengthen safety knowledge training and education for all operating personnel.

9. Apply modern safety management methods, implement scientific management, monitor around the clock, learn lessons, and summarize advanced experience in safety management.

2.3 Performance Objectives

1. Ensure the safety of construction personnel, vehicles and mechanical equipment, reduce general accidents, eliminate major accidents, and curb major accidents.

2. No construction safety liability accidents occurred due to dereliction of duty or neglect of management.

3. The three-level safety management responsibilities are implemented in place, safety management responsibilities are assigned to individuals, the mechanism is sound, the system is perfect, the measures are effective, and the construction operations are legalized and standardized.

4. Do a good job in the "three preventions" and internal security, and adhere to the system of leadership leading the team and on-site workers on duty.

Chapter 3 Safety Work Focus

The safety precautions focus on: safety protection, safe electricity use, mechanical safety, hoisting, fire protection, etc.

3.1 Safety Protection

1. All special work types such as rack workers, steel bar workers, lifting racks, electric welders, mortar and concrete mixers, steel bar forming and other mechanical equipment operators must undergo professional Train and obtain relevant certificates, skilled personnel, and hold special type of work operation certificates.

2. All workers must undergo strict "Level 3" education before entering the site, and be assessed and issued safety certificates.

3. The on-site lighting facilities are complete, reasonably configured, and regularly inspected to ensure normal production and life.

4. Set up a drawing board specified by the construction administrative department at a prominent position at the entrance to the construction site, including the overall site construction plan, general plan management, production safety, civilized construction, environmental protection, quality control, and material management. The rules and regulations, the names of the main participating units and the project overview; personnel entering the construction site must wear safety helmets, and special types of work must wear protective equipment as required.

5. To ensure the safe construction of the project, sufficient signs, posters, slogans, signs, warning signs, fire alarm, police and emergency telephone prompts, etc. must be set up.

6. Set up "four entrances and five edges" safety protection facilities, including protective railings, scaffolding, hole covers and reinforcements, shaft protective railings, protective sheds, protective nets, ramps, etc. , the safety construction items and requirements are as follows:

(1) Edge protection: fully enclosed with a dense mesh safety net, and additional protective railings on both sides and 18cm high skirting boards on the working floor.

(2) Passage entrance protection: Set up a protective shed. The protective shed should be a wooden board not less than 5cm thick or two bamboo fences 50cm apart. Both sides should be closed with dense mesh safety nets along the railings. .

(3) Reserved opening protection: fully enclosed with wooden boards; openings whose short side is more than 5m long should be surrounded by protective railings in addition to being closed.

(4) Wellhead protection: Set up stereotyped, tooled and standardized protective doors; set up a safety flat net every two floors (not more than 10m) in the elevator shaft.

(5) Stairside protection: Set up 2m high stereotyped, tooled and standardized protective railings and 18cm high skirting boards.

(6) Vertical cross-operation protection: Set up protective isolation sheds or other facilities.

(7) Protection for high-altitude operations: there are suspension ropes or other facilities for hanging safety belts; there are operating platforms; there are ladders or other forms of passages up and down.

7. Be equipped with sufficient safety production supplies such as safety belts, safety ropes, safety helmets, safety nets, insulating shoes, insulating gloves, protective masks and protective clothing. Personnel entering the construction area must wear safety helmets.

8. All on-site production safety procedures, measures, construction plans, etc. shall be submitted to the supervision engineer for review. At the same time, evacuation passages for emergency escapes shall be established for construction areas of permanent projects that are inconvenient for personnel to enter and exit. Corresponding management systems should be formulated for work involving open flame construction, such as fire certificates; for projects with greater risks, special safety construction plans should be prepared separately before construction, and should be reviewed and reviewed by experts and reviewed and signed by the unit's technical director and chief supervisory engineer.

9. During the entire project construction period, the project manager convenes and presides over a weekly safety production meeting attended by all management and technical personnel of the entire project. The project safety leader is responsible for organizing, convening and presiding over the weekly safety production meeting. Regular safety production meetings attended by all workers and other staff working on-site, organize a comprehensive inspection of on-site production safety conditions and keep records, check the implementation of all safety rules and regulations, and conduct safety technical briefings and technical solutions in terms of safety Carry out inspections, be responsible for formulating or reviewing rectification measures for potential safety hazards and supervising their implementation, and be responsible for the collation and management of safety data to ensure that all safety facilities are in good operating condition.

10. Strengthen the monitoring and measurement of construction, provide timely feedback of measurement information, and implement timely support measures and closure time of support structures based on measurement results and actual conditions to ensure construction safety and the safety of ground buildings.

11. Carry out transportation safety work. Traffic red lights, traffic signs and guidance personnel should be set up at the construction site to guide pedestrians and vehicles (including bicycles).

12. Equipped with well-equipped temporary first aid stations and staffed with competent medical staff.

13. 24-hour 24-volt safety lighting and necessary warnings are provided in main working places and temporary safe evacuation passages to prevent various possible accidents.

14. Emergency vehicles are always available on site to facilitate the rapid transfer of injured and sick people for treatment, keep in touch with nearby hospitals, and deal with problems in a timely manner.

15. Reasonably distribute and equip a sufficient number of qualified portable fire extinguishers.

16. Well-equipped warehouses for flammable and explosive goods and corresponding usage management systems.

3.2 Mechanical Safety

1. All mechanical equipment, including all types of power tools, must be equipped with safety protection and grounding devices and operating instructions. Special personnel are responsible for repairs and maintenance, and regular inspections of the machinery. Check key parts to prevent mechanical failure and mechanical damage.

2. Regularly test, inspect and calibrate all hooks, rings, wire ropes, etc. used for lifting. If damaged or improperly used, replace them immediately.

3. The foundation must be stable during mechanical installation. No one is allowed to stand under the lifting robotic arm. During operation, the distance between the robotic arm and the overhead line must comply with safety regulations.

4. The erection, lifting, use and dismantling of all vertical and horizontal transport machinery must be strictly in accordance with the relevant government regulations, rules and regulations. On-site installation and dismantling of heavy machinery and facilities must be undertaken by units with corresponding qualifications, and disassembly and assembly plans and safe construction measures must be prepared and supervised by professional technicians on-site. After the installation is completed, the installation unit shall organize a self-inspection, issue a self-inspection certificate, provide instructions on safe use to the user, go through the acceptance procedures and sign.

5. Depending on the nature of work and performance of various mechanical equipment, dustproof, rainproof, anti-smashing, anti-noise sheds and other devices should be erected. Signs, rule boards and detailed safety instructions should be set up near the mechanical equipment. Operational points.

6. Lifting standards for hoisting machinery

(1) Before lifting operations, obstacles on the roads passing through the construction site should be cleared to ensure that the construction site is clean and the roads are smooth.

(2) When using new machines or new processes, they must undergo technical appraisal.

(3) Before lifting by the hoisting machinery, a test hoisting must be carried out.

(4) There must be good roads when using and traveling lifting machinery.

(5) The command of the lifting machinery must be conducted by personnel experienced in lifting operations.

(6) Lifting machinery drivers should concentrate on their work, clearly divide their labor, and obey unified commands.

(7) When lifting heavy objects, no one should stay or walk under the lifting pole. When the crane stops operating, the stopper should be pressed and the hook and wire rope should be tightened.

(8) The crane driver must be familiar with the construction methods, the performance of the lifting equipment, the characteristics and exact weight of the objects being lifted, and the requirements for construction safety; when using two cranes to lift heavy objects at the same time, they should It is carried out under the unified command of the person in charge of the on-site construction. During the lifting process, the two cranes must balance the lifting and lowering weights so that their respective lifting weights do not exceed their allowable load capacity.

(9) When lifting heavy objects, the spreader should be tied firmly to prevent the hook from slipping.

(10) Equipment status and certificates

The equipment used at the construction site must have a safety inspection certificate and be in good condition. Equipment that has entered the update or elimination period must be replaced and regular equipment maintenance schedules must be established. Inspection system, equipment operators must undergo relevant training, special types of work should have job qualification certificates, and operators should have complete certificates and licenses.

(11) Safety operating procedures for crane drivers

① Crane drivers must have received professional training and obtained relevant certificates, are skilled in technology, and hold a special type of work issued by a provincial or above certification authority Licensed personnel.

② Follow the signal from the commander during operation. If the signal is unclear or may cause an accident, the operation must be stopped immediately.

③ When lifting objects, the slide rope must be pulled at a uniform speed. Sudden braking and direction changes are prohibited. The translation should be more than 0.5m above the obstacle. When falling, lower the rope gently to prevent tipping; lift at full load. or near full load, it is strictly prohibited to lower the boom or perform two movements at the same time.

④ It is strictly prohibited to lift or lift objects buried underground or condensed on the ground or equipment.

⑤ When the crane stops working, put down the lifting object, apply the brake, put the control lever in neutral, and close the door and lock it.

⑥When the crane approaches the limit end, slow down and stop.

⑦ If there is a power outage during operation, each controller should be placed in the zero position, the power switch should be cut off, and no one should be allowed to approach under the hanging object.

7. Transport vehicles must obey commands, have complete signals, and must not speed. They must slow down and whistle when crossing intersections or encountering obstacles. The brakes must be sensitive and have good functions.

(1) Vehicles are required to be properly maintained. Non-drivers are not allowed to drive the vehicle. Drivers must have a driving license and receive regular driving and safety education.

(2) Before the start of construction, repair sidewalks and transportation access roads in accordance with regulations, maintain and maintain them regularly, and keep them smooth; set up safety signs at the fences entering and leaving the construction site, at road turns, dangerous sections, and at the junction of temporary roads and formal roads. Card.

3.3 Safe use of electricity

1. All construction workers should master the basic knowledge of safe use of electricity and the performance of the equipment used. Electricity users should protect the load lines, ground wires and If you find any problems, please contact an electrician to solve them immediately. Non-professional electrical operators are strictly prohibited from tampering with electrical equipment.

2. The high-voltage wires are led to the indoor substation at the construction site. The ventilation and drainage in the substation are good. The door opens outwards, is locked and is in charge of a dedicated person. Personnel are not allowed to enter casually. The installation location of the transformer and the grounding resistance Meet specification requirements.

3. The power distribution system has hierarchical power distribution and is equipped with five-core cables, four-core cables and three-core cables in accordance with the requirements of the TN-S system. The appearance of the distribution box and switch box is complete, solid, rainproof and dustproof. , exterior painting safety color, unified number. The installation form must comply with relevant regulations, the electrical appliances in the box must be reliable and intact, the shape and value must comply with regulations, and the purpose must be indicated.

4. The bottom of the poles supporting overhead lines on site must be solid and must not tilt or sink. There should be a certain safe distance from adjacent buildings. Insulated wires must be used and must not be laid overhead in bundles. Effective protective measures must be taken when required.

5. All electrical equipment and their metal casings or frames should be equipped with reliable zero connection and grounding protection in accordance with regulations.

(1) Protective zero connection: In a low-voltage power system where the neutral point of the power supply is directly grounded, the metal shell of the electrical equipment is directly electrically connected to the neutral line or dedicated neutral line of the power supply system. Make the protective device act quickly and accurately, cut off the accident power supply, and ensure personal safety.

(2) Protective grounding: The insulation condition of all electrical equipment must be in good condition, and all insulation indicators must reach specified values; protective grounding or protective measures must be taken for the metal parts of electrical equipment and its connected mechanical equipment. Good grounding device sign; the resistance of the protective grounding shall not be greater than 4 ohms according to regulations.

6. All electrical equipment at the construction site must be equipped with leakage protection devices in accordance with regulations. They must be inspected regularly and any problems found must be dealt with promptly.

7. The installation and use of various electrical equipment on site, especially electric welding, electric heating equipment, and power tools, should comply with regulatory requirements, and dedicated personnel are responsible for maintenance and storage.

(1) The shell of the welding machine must be well grounded, and the installation and removal of the power supply must be carried out by an electrician.

(2) The electric welding machine should be equipped with a separate switch. The switch should be placed in a rainproof box and operated sideways while wearing gloves.

(3) The welding clamp and the handle wire must be well insulated and firmly connected. Wear gloves when replacing welding rods. When working in humid locations, stand on the insulating rubber board.

(4) It is strictly prohibited to weld on pressure vessels or pipelines. Welding live equipment must first cut off the power supply.

(5) When welding preheated components, there are heat insulation measures such as asbestos cloth or baffles.

(6) When changing venues and moving the handlebars, cut off the power supply and do not climb with the handlebars in hand.

(7) When multiple welding machines are welded together, the welding platform or weldment must be grounded and a light barrier must be installed.

(8) The ground wire and the ground wire are prohibited from contacting the steel wire rope, and steel wire ropes or electromechanical equipment are not allowed to replace the neutral wire.

8. When the electromechanical equipment enters the site without installation, a separate warehouse should be set up and must not be placed randomly; equipment installation should be carried out when conditions are met, and installation during peak hours of cross-working operations is prohibited; when equipment is crimped and wired, no Live work is required to prevent the equipment from burning due to wiring errors and errors; after the equipment is installed and tested, it should be handed over to the general contractor in a timely manner and under the unified care of the general contractor's insurance personnel. At the same time, each subcontracted construction team should be strictly monitored and managed. There must be no phenomenon that "after being handed over to the general contractor, the subcontractor is no longer responsible".

3.4 Safety measures for open excavation construction

1. Set up 1.2m high protective fences with steel pipes around the foundation pit for protection.

2. Slope in strict accordance with the requirements. During operation, attention should be paid to changes in the soil wall. If cracks or partial collapse are found, support or grading should be carried out in time, and attention should be paid to the stability of the support and changes in the soil wall. .

3. When lifting earthwork manually, check whether the lifting tools and ropes are secure, and no one should stand under the bucket.

4. Frequently check the connection between temporary steel supports and piles to prevent the supports from loosening and falling off.

3.5 Safety assurance measures for shield machine disassembly and hoisting

1. Strictly abide by the safe operating procedures for lifting operations and the safe operating regulations of the unit;

2 , Implement technical and safety briefings before each shift of operation, and designate full-time safety officers to be responsible for daily security inspections;

3. Loading and unloading trucks of large shields should be commanded by dedicated personnel and act in a unified manner.

3.6 Safety Guarantee Measures during Shield Machine Excavation

1. Establish a standardized handover system so that everyone has their job responsibilities and no one leaves their post;

2. There are dedicated personnel to direct the excavation and pipe entry in the shield tunnel and coordinate the construction;

3. Regularly check the safety of the high-voltage and low-voltage cables in the shield tunnel and the transportation track;

4. It is strictly prohibited to ride battery-powered cars and smoke in the tunnel;

5. Establish regular contact with the local power supply department, and promptly notify the staff at the working surface after receiving a power outage notice , close the front and rear gates of the screw conveyor, and monitor the water level and soil pressure;

6. When personnel enter the front warehouse, they must follow the operating requirements, have a stable air pressure source and good sealing.

3.7 Safety measures for preventing collapse of communication passages

The tunnel is in a weak stratum, so the prevention of collapse is the first priority and follows the shallow burial and underground excavation method of "pipe ahead, strict grouting, short excavation" According to the construction principles of "strong support, quick closure, early loop formation, and frequent measurement", the construction plan is formulated based on actual conditions to ensure safe production.

1. Pre-grouting in advance. According to the geological conditions of the working surface, formulate a grouting plan, carefully lay out the pipes, strictly control the grouting work, control the grouting pressure, and pay close attention to the grouting amount to ensure that the ideal reinforcement effect.

2. Strictly control the excavation cycle footage. For unfavorable geological areas, shorten the excavation footage appropriately, retain core soil in circular excavation, and spray concrete to seal the excavation working face when necessary, and select materials with sufficient stiffness and Early-strength support design, such as appropriately thickening the shotcrete layer, spraying early-strength concrete, and completing anchor-shotcrete net combined support as early as possible.

3. Before excavation of the cavern, the materials, components and equipment required for the excavation and support methods should be determined based on factors such as geological conditions, covering soil, and excavation section. Emergency supplies should be prepared and on-site Neatly stacked, dedicated to special materials.

The materials, components and equipment used should comply with current national or industry standards and design requirements, and should have factory certificates and quality certification documents.

3.8 Grouting safety measures

1. Grouting personnel must undergo special training and be proficient in relevant operating procedures.

2. It is strictly prohibited to make any repairs without stopping the pump.

3. Before the pressure in the grouting pump and pipelines drops to zero, it is not allowed to dismantle the pipelines or loosen the pipeline joints to prevent the slurry from spraying out and injuring people.

4. The grouting pump must be operated by a dedicated person, and no one else may operate it without permission.

5. Grouting personnel should wear protective glasses when dismantling pipelines and operating grouting pumps to prevent grout from splashing into their eyes.

6. Keep the machinery and pipes clean. After work, the equipment must be cleaned and maintained, and the surrounding environment must be cleaned up.

3.9 Measures to prevent electric shock

1. Three-level leakage power distribution shall be implemented for construction electricity, and construction cables shall be laid overhead in accordance with regulations.

2. The rated leakage current of the leakage protection device in the switch box should not be less than 30mA, the rated leakage should not be greater than 15mA, and the rated leakage action time should not be greater than 0.1s.

3. The protective neutral line must be grounded repeatedly as required.

4. The construction lighting in the cave adopts 36V low-voltage lighting circuits.

5. Double lines are in place for gas welding operations, and a safety distance of no less than 5m is left between oxygen and acetylene.

6. Non-electricians are not allowed to dismantle or modify electrical appliances and power supplies, and electricians must be certified to work.

7. Electricians should regularly inspect the electrical equipment at the construction site to promptly discover and eliminate potential electrical accidents, especially during the rainy season.

8. Construction power lines and equipment shall be designed and installed according to the construction organization and shall comply with the regulations of the power supply department. It is strictly forbidden to use power lines to build up or fix the facilities before testing before the thunderstorm season. No flammable building materials should be used in the substation and distribution rooms. The doors should open outwards. The building structure should meet the requirements of fire protection, waterproofing, leakage prevention and good ventilation. Metal parts such as machinery, railings, steel bars, pipes, and nails, as well as electrical equipment and insulating appliances must be regularly inspected and tested, and lightning protection measures must be taken.

9. All electrical equipment and buildings that may cause leakage of electricity or be susceptible to lightning strikes should be equipped with grounding or lightning protection devices. Our unit is responsible for the procurement, installation, management and maintenance of these devices, and establishes regular inspections system.

3.10 Fire safety measures

1. Fire protection work shall implement the policy of “prevention first, combining prevention and fire prevention”, strengthen fire safety management of buildings under construction, and ensure the smooth progress of on-site construction.

2. Organize a voluntary fire brigade to conduct fire safety education and voluntary training on fire protection knowledge.

3. Welding operations must comply with fire prevention requirements and strictly implement the "ten no burning" regulations. If open flames are used during construction, someone must be assigned to supervise and go through fire prevention approval procedures.

4. A pool of fire-fighting water can be built as a temporary reservoir. Inflammable and explosive places such as carpentry rooms and paint warehouses must be equipped with fire buckets and fire extinguishers, and be marked with the words "No Fireworks".

5. Equipped with sufficient fire-fighting equipment, the distance between the kitchen and other facilities shall not be less than 15m, and the distance from flammable materials shall not be less than 50m. Volunteer firefighters regularly check fire-fighting equipment and replace chemicals in a timely manner to ensure that fires can be put out in time when a fire occurs.

6. Strengthen electricity management to prevent fires.

Chapter 4 Safety Management System

4.1 Safety Production Guarantee System

Establish a complete safety management system, horizontally to the edge and vertical to the bottom. A safety and quality department is established to specialize in daily safety supervision and inspection. Safety management personnel are adequately deployed and in place, and various systems and systems are strictly managed to ensure that orders and prohibitions are enforced. Integrating various departments to form a production safety guarantee system, the detailed responsibilities are as follows: