Construction site safety supervision and inspection work

Construction site safety supervision and inspection work

There is a post on the construction site called safety supervision. Do you know what work this position has to check every day? Below, I would like to introduce the work content of safety supervision and inspection on the construction site. Come and have a look!

1. Security check

(1) A written explanation of the post responsibility system for production safety, safety management objectives, safety technical measures in construction organization design, construction safety technical disclosure, safety education system, safety education for new workers, safety management institutions and full-time safety management personnel, safety production operation procedures, pre-shift safety activity system, dangerous posts and hazards of illegal operations.

(2) On-site safety warning signs: on-site entrances and exits, hoisting machinery, aerial work, hoisting work, scaffolding entrances and exits, elevator wellhead, hole, foundation pit and various temporary electricity facilities.

(3) Holders: tower crane driver, hoist operator, construction elevator driver, lifting signalman, climbing erector, blaster, electrician and welder.

(4) Safe distance between site office, living area and working area; Temporary buildings should be safe; The project under construction shall not be used as a dormitory; Urban construction should be enclosed; The entrances and exits of the construction site shall meet the requirements of traffic management; Precautionary measures that construction may affect adjacent buildings, structures, pipelines and high-voltage lines.

2. Construction electricity consumption

(1) The site layout of construction electricity shall be implemented according to the provisions of the electricity layout in the construction organization design.

(2) The erection height of construction electricity trunk and branch lines shall conform to the following requirements: the height of overhead lines shall be greater than 4m, and the height of cables shall be greater than 2.5m (or buried more than 0.2m).

(3) Buried depth of overhead poles, cross arms, insulators and poles shall comply with regulations.

(4) It is forbidden to use aging, broken and leaking wires and cables.

(5) Construction lighting should have a special circuit, and the metal shell of lamps and lanterns should be connected to zero. The height of indoor lamps is more than 2.5m, and that of outdoor lamps is more than 3m. Safe voltage is used as the lantern.

(6) Power transformation and distribution equipment for construction shall meet the specification requirements; Three-level distribution and two-level protection; The power supply adopts three-phase five-wire system; The power distribution room should be equipped with warning signs, fire extinguishers, insulating mats, insulating gloves and other supplies.

(7) The distribution box is marked, the outgoing line is neat, and there are doors, locks and rainproof measures.

(8) The power switch box should have just one switch, one leakage and one box.

(9) The power switch box shall be numbered uniformly, installed in the correct position, without sundries around, with the bottom of the box 60 cm from the ground, complete switches in the box and fuses.

(10) Electrical equipment and mechanical equipment shall have reliable grounding devices.

(1 1) The electricity consumption for construction is managed in a unified way, and the formalities for electricity consumption must be completed. It is forbidden to connect and pull temporary electricity without authorization.

(12) The construction power management personnel and the operators of power connection, power transmission and stringing must hold relevant certificates.

3. Foundation pit construction

(1) Before foundation pit construction, a special construction scheme must be prepared, which should meet the requirements of construction organization design.

(2) The foundation pit construction scheme shall be approved by the chief engineer of the construction unit and submitted to the project supervision institution for examination and approval.

(3) For the foundation pit with a depth of more than 2m, protective railings should be set at the edges, and special passages or climbing facilities should be set up for the upper and lower foundation pits.

(4) Dewatering measures should be taken for the foundation pit with high groundwater level.

(5) For the deep foundation pit with poor geology, there should be special schemes or measures for pit wall support.

(6) Precautions should be taken for buildings, structures, pipelines and high-voltage lines near the foundation pit.

(7) The upper and lower sides of the foundation pit shall be provided with an effective drainage system.

(8) Without checking calculation or taking protective measures, it is forbidden to pile up soil, store materials or mechanical equipment, and pass vehicles at the pit.

(9) Inspect the construction machinery entering the site, the driver shall hold relevant certificates, and set warning signs in the operation area.

4. Formwork and supporting system

(1) The formwork project shall have a construction scheme, which shall be approved by the technical director of the construction unit and submitted to the project supervision institution for examination and approval.

(2) The construction scheme of formwork and supporting system with large span, height and load shall be accompanied by checking calculation of supporting system.

(3) Support columns should be vertical and stable, padded with stow-wood, column spacing, horizontal support and vertical and horizontal bracing spacing should meet the requirements of the scheme.

(4) Supporting material: The outer diameter of steel pipe shall not be less than? 48 X 3。 5mm square timber should be 100, right? L00mm, no rot or furuncle, accounting for more than 1/3 of the cross section.

(5) When the molding height exceeds 2m, the operators should have a stable and reliable working environment.

(6) There should be perfect protective facilities for holes and edges on the molding operation surface.

(7) After the formwork and supporting system are completed, the acceptance of sectional works shall be organized.

5.？ Sambo? 、? Four? 、? Five sides? protect

(1) Construction personnel must wear safety helmets correctly when entering the site.

When working at heights of more than 2 meters, you must fasten your seat belt.

(3) The outside of the project under construction shall be closed with qualified safety net; The railings on both sides of the discharging platform are hung with vertical nets from top to bottom; Hang a flat net every two layers or so; At the operational level? 10m has a flat screen; The side length of the hole > 1 is surrounded by protective railings. 5m, hang a flat net under the hole. Elevator shaft every two floors? 10m, flat screen.

(4) Stairs, elevator wellheads, reserved holes and pit wellheads shall have protective railings and skirting boards.

(5) Balcony, hole, passage, stairs, floor and roof shall be provided with guardrails (upper railing 1 ~ 1.5m, lower railing 0.5 ~ 0.6m).

(6) There are protective sheds at the passage and entrance.

6. Scaffolding

(1) There must be a scaffold construction scheme, which shall be approved by the technical director of the construction unit and approved by the project supervision institution. Make disclosure before construction and organize acceptance after construction.

(2) The steel pipe scaffold should be connected with uniform pipe diameter and fasteners, and it is forbidden to mix steel and wood and tie wires.

(3) The upright post should have a stow-wood or a base and a drainage system.

(4) The spacing between vertical poles shall not be greater than 2m, the spacing between main rails shall not be greater than 1.2m, and the spacing between small rails shall not be greater than1.5m. The vertical poles shall have vertical and horizontal sweeping poles.

(5) When the height of the scaffold exceeds 7m or the support cannot be set, the scaffold must be firmly connected with the building at 4m high and 7m horizontal.

(6) Shear bracing: Shear bracing and scissors bracing are provided at both ends of the scaffold, at corners and every 6-7 vertical poles. The included angle between the support and the pillar and the ground shall not be greater than 60 degrees, and the bottom of the pillar shall not be less than 750px.

(7) Distance between external scaffold and power overhead line: voltage? 65438+ 10kV is 4m, 1 ~ 10kV is 6m.

(8) Scaffolding shall be spread all over the floor, with the thickness exceeding 125px, and the probe board shall be fastened.

(9) Outside the operation floor, a protective fence with a height of 450px should be set, a protective railing with a height of 1m should be tied, a safety net should be set, and a protective net should be externally hung on the frame.

(10) Scaffolding shall be equipped with a ramp with anti-skid device.

(1 1) The entrance and exit of the frame body and the passage adjacent to the frame body shall be provided with protective sheds. (12) The unloading platform is not allowed to be connected with scaffolding, and the load sign is limited.

(13) Protective grounding and lightning protection grounding devices shall be set at the four corners of steel pipe scaffold.

7. Tower crane

(1) Installation and disassembly of tower cranes must use units and professional installers with safety (disassembly) qualification and safety license.

(2) The acceptance of the tower crane must be inspected by a statutory inspection qualification institution and can only be used after being put on record by the competent construction department.

(3) There shall be a plan for the installation and disassembly of the tower crane, which shall be approved by the technical director of the installation unit.

(4) Torque and weight limiter, slewing, luffing, walking, superelevation limiter, hook insurance and drum insurance are effective and reliable.

(5) Tower crane and tower crane, tower crane and building, tower crane and overhead line must meet the safe distance.

(6) The tower crane shall have grounding, zero connection and leakage protection devices.

(7) Tower crane drivers and commanders should hold relevant certificates.

(8) Tower crane should have superior command, subordinate command and specified semaphore when working.

8. Gantry and derrick

(1) has passed the inspection by the statutory inspection qualification institution, and has gone through the formalities of application and product filing.

(2) The hanging plate has a safety door and baffles on both sides.

(3) The hanging plate docking device is firm and reliable, and has an ultra-high limit device.

(4) The steel wire rope shall be in good condition to prevent wire breakage, wear, rust and mopping the floor, and shall be protected when passing by.

(5) The cable wind rope is set vertically every 20m, and the wire rope is 9.3mm, 45? ~60? Corner anchor.

(6) The hoist shall have ground anchor, reliable fixation, effective rope drum safety device and hoist operation shed.

(7) The frame is vertical, connected firmly and reliably, and wrapped with a dense mesh safety net.

(8) The rack shall be equipped with lightning protection device.

9. Outdoor construction elevator

(1) There should be a special plan for the installation and disassembly of the construction elevator, which should be installed by professional installers.

(2) The construction elevator shall be inspected and accepted by the municipal technical supervision department, and it can be used only after the use certificate is issued.

(3) The elevator suspension box superelevation limiter is effective and reliable, and overweight carrying is strictly prohibited.

(4) A protective fence should be set around the bottom of the elevator, and a protective shed should be set at the upper part of the bottom entrance.

(5) The elevator driver must hold relevant certificates.

(6) The elevator operation room and each floor shall be provided with signal contact devices.

10. All kinds of construction machinery

(1) Pile driver. Whether the driver's factory certificate and quasi-driving model are valid; Equipment in good condition, complete configuration, are not allowed to work in spite of illness; The ultra-high field device is effective and reliable; There is no high-voltage line above the operation area; The power cord is undamaged and has a special electric switch box; The on-board control system is effective and reliable; Steel wire rope is rust-proof and well lubricated; Operators should hold relevant certificates; Safety operation regulations are hung on the machine.

(2) Woodworking machinery (planer, circular saw). Installation and acceptance procedures; Hand protection safety device of planer; Disc saw protective baffle, disc saw shield; Transmission protective cover; Each machine has a special switch box for grounding and leakage protection; Build a protective shed; Have a safety operation procedure card.

(3) Reinforcement machinery (shearing machine, forming machine, cold drawing machine, straightening machine, butt welding machine). Installation and acceptance procedures; The transmission part has a protective cover; Build a protective shed; Cold drawing and butt welding operation areas are protected; Equipped with special switch box and grounding and leakage protection; Have a safety operation procedure card.

(4) concrete and mortar mixer. Installation and acceptance procedures; Operating handle safety device; Hopper safety hook; Transmission part protective cover; Equipped with special switch box and grounding and leakage protection; Build a protective shed; Have a safety operation procedure card.

(5) electric welding machine. Equipment inspection is in good condition; The length of the main line shall not exceed 5m; There shall be no more than three joints of the handle line; Line insulation is good, can not have broken skin, leakage phenomenon; Welding machine is equipped with rain cover; Electrical box with special switch; The shell has reliable grounding and leakage prevention measures.

(6) Submersible pumps and hand-held electric tools. Equipment and tools shall be inspected in good condition, with good insulation, special switch box, zero connection device and leakage protector.

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