Article 1 When the depth of excavation groove, pit and ditch exceeds 1.5m, slope or reliable support shall be provided according to the soil quality and depth.
Article 2 in the 1 m trough, pit, ditch, it is forbidden to pile up soil, materials and tools. The distance between ditch, pit and ditch edge and buildings and structures shall not be less than 1.5m, and technical measures must be taken under special circumstances.
Article 3 The edges of trenches, pits and ditches with an excavation depth of more than 2 meters must be provided with two solid protective fences, and red marker lights should be set at night.
Article 4 Before the construction of large-diameter piles and belled piles, safety protection measures such as falling prevention, collapse prevention and suffocation prevention must be formulated and implemented by special personnel.
Chapter II Scaffolding Operation Protection
Article 5 Steel pipe scaffolding shall be made of steel pipes with an outer diameter of 48-5 1mm, a wall thickness of 3-3.5mm and no serious corrosion, bending, flattening and cracks. The diameter of the wooden scaffold shall not be less than 8 cm, and there shall be no decayed, cracked or withered Chinese fir. Legs and poles must not be mixed with steel and wood.
Article 6 the bar connection of steel pipe scaffold must use qualified special fasteners, and lead wire and other materials shall not be used for binding.
Article 7. 8 # lead wire is used to bind the bar of Chinese fir scaffold, and the special binding rope with a diameter not less than 10 mm can be used to erect Chinese fir scaffold below 6 meters.
Article 8 The vertical pole spacing of structural scaffolding shall not be greater than 1.5m, the main rail spacing shall not be greater than 1.2m and the row spacing shall not be greater than1m..
Article 9 The spacing between the upright post, the main rail and the raft of the decoration scaffold shall not be greater than 1.8m, 1.8m and 1.5m respectively.
Tenth scaffolding must be firmly connected to the wall according to the floor, and the horizontal distance of the contact point of each floor shall not exceed 4 meters. The strength of materials used for connection shall not be lower than that of 8 # double stranded conductor. At the same time, a reliable support is provided at the pull contact.
Eleventh scaffolding operation surface must be laid scaffolding, and set the skirting board and two fences. There shall be no detection board and springboard on the scaffold.
Twelfth assembled scaffolding must ensure that the overall structure is not deformed. Except firmly tied to the roof of the building, all external scaffolding with a height exceeding 18m must be provided with longitudinal bracing, and those with a height lower than 18m must be provided with positive and negative diagonal bracing.
Chapter III Operation Protection of Tool Scaffolding
Article 13 Socket, tripod and bridge scaffold shall be erected as required. Scaffolding must be firm and firmly fixed. Scaffolding and buildings should be firmly connected. The lower opening of the safety net must be tightly sealed.
Article 14 The bolt of the socket frame should be nailed at the upper and lower openings of the window, and each side should be 20 cm longer than the nailed wall. A protective fence should be tied next to the chlorophytum near the building.
Fifteenth bridge, crane lifting, there must be a safety rope, the operator must wear a seat belt, hook must have anti-decoupling device.
Sixteenth bridge scaffolding is only allowed to be used on buildings with a height of 18 meters. (Except for special structural design and load calculation). The span of the bridge is not more than 12m.
Seventeenth bridge scaffolding is only applicable to building exterior wall decoration and structural exterior wall protection. External decoration shall ensure that the standard construction live load does not exceed1000 n/m2 (1000 n =120kg); When using external protection, the protection height must exceed the working surface 1 m, and the excess part should be tied with protective fence and safety net.
Chapter IV Use of TIC-tac-toe and gantry protection.
Eighteenth tic-tac-toe frame, gantry erection must conform to the requirements of the regulations. The height of 10-1 5m shall be set with a set of cable wind ropes, and each set shall be increased by10m, with 4 ropes in each set. The cable wind rope adopts steel wire rope with the diameter of 12.5mm, and the ground anchor is buried as required. It is forbidden to tie it to trees, telephone poles and other objects, and it is forbidden to adjust the tightness with other bars.
Article 19 A protective shed must be erected at the inlet of tic-tac-toe frame and gantry. There should be a protective door on each unloading platform, and two protective fences should be tied on both sides.
Twentieth tic-tac-toe frame, gantry crane cage on both sides must be sealed, and the entrance and exit should be safe. The hanging cage should be provided with two positioning support rods, which must be used at the same time. Passengers are not allowed in the operation of the hanging cage.
Twenty-first tic-tac-toe frame, guide pulley must be set separately and firmly anchored, and shall not be tied to the scaffold. The wire rope from the guide pulley of tic-tac-toe frame and gantry to the winch drum should be shielded wherever it passes through the passage.
Article 22 The feeding platform at the top of the top sheave of the tic-tac-toe frame and gantry should be no less than 6m, and an ultra-high limit device must be set at 2m below the top sheave.
Article 23 Any point of the tic-tac-toe frame and the gantry frame must keep a safe distance of more than 3 meters from the overhead transmission line.
The fifth chapter hole, limb protection
Twenty-fourth holes below 50×50 cm should be embedded with steel wire mesh or fixed cover plate.
Article 25 Long steel mesh is embedded in the hole of 50×50cm to 150× 150cm, and a fixed cover plate can be added unconditionally.
Twenty-sixth 150× 150 cm above the mouth of the cave, it is necessary to set up a guardrail and hang a horizontal safety net in the middle.
Article 27 elevator doors must be set. The first floor of the elevator shaft and above shall be provided with a horizontal safety net every four floors. Without the approval of the superior competent technical department, vertical transportation shall not be carried out in the elevator shaft.
Twenty-eighth stair step and rest platform, must set up two solid guardrail.
Twenty-ninth balcony can be installed floor guardrail, should be installed with the floor; If it cannot be installed along the floor, a temporary fence must be erected.
Thirtieth buildings around the edge of the floor, not masonry installation and maintenance structure, must be tied to two fences or hanging safety net plus a fence.
Chapter VI Protection of High-altitude Operation
Article 31 No matter what kind of external scaffolding is used, a 3-meter-wide horizontal safety net (6-meter-wide double-layer safety net for high-rise buildings) must be fixed around the first floor of a building with a height of more than 4 meters, and the distance between the bottom of the net and the contact surface shall not be less than 3 meters (not less than 5 meters for high-rise buildings). A 3-meter-wide horizontal safety net should be fixed on every four floors of high-rise buildings, and the interfaces of the horizontal safety net must be closely connected. If the horizontal safety net cannot be erected, a net should be erected on each floor, and the next entrance should be closed. The erected horizontal safety net can only be removed without aerial work.
Article 32 A protective shed with a length of 3-6 meters and a width of 1 meter should be erected at the entrance and exit of a building, and the roof should be covered with scaffolding not less than 5 cm thick. Non-entrances and exits and both sides of the passage must be sealed.
Article 33 A protective shed must be erected for the pedestrian passage near the construction area to ensure the safety of pedestrians.
Thirty-fourth iron stools and wooden stools should be tied firmly and must not be shaken. The distance between two steps shall not exceed 2m. The scaffolding on the bench should be fixed, and only one person can operate on the bench.
Article 35 When working at heights, it is forbidden to throw materials.
Chapter VII Safety Protection of Temporary Electrical Engineering
Thirty-sixth power lines on the construction site shall not be erected with bare wires and plastic wires, and shall not be laid overhead in bundles or along the ground.
Article 37 The distribution box and switch box shall be firm and complete, waterproof and rainproof, and the door of the box shall be locked and painted with the red word "electricity" or danger signs. Disk layout should comply with the regulations. Electrical components in the box shall not be damaged or exposed. It is forbidden to put sundries in the box.
Article 38 The metal sheath, metal bracket and metal frame above the electrical equipment building must have reliable grounding or neutral protection.
Article 39 Hand-held electric tools shall be maintained and kept by electricians. All plugs and power contacts of hand-held electric tools should be in good condition. When in use, the power cord shall not be extended or disassembled at will, and a qualified national leakage protector must be installed.
Article 40 The voltage of indoor temporary lighting, handle lights and sign lights on the construction site shall not exceed 36V, and the lighting voltage in particularly humid workplaces, metal pipes and containers shall not exceed 12V. Do not use plastic wire for the power cord of the handle lamp.
Chapter VIII Safety Protection of Construction Machinery
Forty-first tower crane subgrade and track installation must meet the technical requirements, and after acceptance, can be used.
Forty-second tower crane safety device (four limit, two insurance). Must be complete and effective, and shall not be operated in spite of illness.
Article 43 the hoist must build a special operation shed for fortification and rain protection. The fuselage should be fixed with ground anchors. It is forbidden to use wood or shovel instead of or tie it to trees, telephone poles, etc. The transmission part must be equipped with a solid protective cover.
Article 44 The mixer should have a rain-proof operation shed, which should be fixed before use, and tires should not be used instead of support. The power supply must be cut off before moving. Starting device, clutch, brake, safety chain and protective cover should be complete and in good condition, safe and reliable in use. When the mixer stops using, the safety chain of the hopper must be hung.
Forty-fifth motor dumpers shall not exceed 5 kilometers per hour, and the directional mechanism, brakes and lighting shall be sensitive and effective. It is forbidden to take people with you when driving. When discharging into grooves, pits and ditches, keep a safe distance and set piers.
Forty-sixth frog rammer must be operated by two people, the operating switch should be equipped with a direction switch, and the operating handle should be equipped with insulating materials. It is forbidden to remove accumulated soil when the rammer is running. After use, the rammer should be covered with rain cloth and the cushion should be raised to prevent electric shock and personal injury.
Article 47 the grinder must be equipped with a self-locking device to prevent people from entering the car. Manual mill should be equipped with per capita 15 kg, and overload is not allowed.
Article 48 The electric welding machine shall have a separate switch, and its primary and secondary side wiring shall have a protective cover. The length of primary power cord of electric welding machine shall not exceed 3m, and the length of handle wire shall not exceed 30m. The sheath of electric welding machine shall be grounded, and the loop grounding wire shall not be connected to buildings, mechanical equipment, various pipelines, metal frames or tracks.
Article 49 it is forbidden to use rubber instead of metal explosion-proof membrane for acetylene generator. Anti-backfire device should keep a certain amount of water. Oxygen cylinders shall not be exposed to the sun, inverted or stained with oil. The safe working distance of acetylene generator, oxygen cylinder and welding torch at three points shall not be less than10m. Buoy acetylene generator is strictly prohibited in the construction site.
Article 50 The disc and rotating part of a circular saw shall be equipped with safety covers, and safety devices and distributors shall be provided. Circular saws are strictly prohibited where the length is less than 50 cm and the thickness is greater than the radius of the saw disc. Scraper saw and cross saw shall not be mixed.
Article 51 the grinder shall not use the reverse switch. The grinding wheel must be equipped with a protective cover not less than 180 degrees and a solid workpiece support. Non-circular, cracked and less than 25mm grinding wheels are strictly prohibited.
Article 52 the sling must use qualified products.
(1) The steel wire rope shall ensure a sufficient safety factor according to the purpose. In places with serious surface wear, corrosion and broken wires, cables with bent, broken strands and exposed oil cores shall not be used.
(2) In addition to proper use, hooks should have safety devices to prevent unhooking.
(3) When using the snap ring, the pin shaft and the ring bottom should be stressed. When hoisting large formwork, large ash truck, concrete bucket and prefabricated wallboard, snap rings must be used.
Chapter IX Personal Protection of Operators
Article 53 All personnel entering the construction area must wear safety helmets.
Fifty-fourth whoever works at a height of more than two meters where reliable protective facilities cannot be taken must wear a seat belt.
Article 55 All personnel engaged in electrical operations should wear insulating shoes or gloves.
Article 56 Personnel engaged in welding, gouging and grinding operations should use masks or goggles.
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