Seek the safety production operation rules of construction enterprises

5.1 safety operation procedures for general construction workers

1) Before going to work, you must check whether the tools are firm, and you should look forward to prevent accidents when working.

2) When excavating earthwork, keep the operating distance between two people at 2-3m, and excavate layer by layer from top to bottom. It is forbidden to use the method of digging holes.

3) When excavating trenches and foundation pits, slope should be placed according to soil quality and excavation depth, and solid wall support should be set when necessary. The excavated soil should be piled up 1m away from the ditch, and the height should not exceed 1.5m..

4) When using trolleys to transport earthwork, attention should be paid to stability, and it is forbidden to rush and spread the handle. Before and after the car from the ground shall not be less than 2m, downhill shall not be less than 1m. When using the car on the scaffold, you should pay attention to the bearing degree of the shelf, push it slowly and steadily, pay attention to pedestrians before and after, and be careful when turning the block and touching the railing of the shelf. Wear labor protection articles and don't wear hard-soled shoes to work.

5) The height of the bricks stacked on the scaffold shall not exceed three layers of side bricks to avoid the sinking of the lifting frame.

6) When people cross up and down for operation, they must wear safety helmets and cooperate with each other, so as to prevent accidents.

7) Do a good job in cooperation with other work, and do your best to do your job and ensure the construction safety.

5.2 safe operation procedures for bricklayers

1) Scaffolds shall be put up and down by ramps, and it is forbidden to stand on brick walls for laying, marking (sewing), checking the verticality of big corners and cleaning the walls.

2) The tools used for bricklaying should be placed in a safe place, and the brickwork should face the wall. After work, the broken bricks and mortar on the scaffold board and the wall should be cleaned to prevent falling and hurting people.

3) After gables are built, stringers should be installed immediately or temporary supports should be added to prevent collapse.

4) The wooden orange and metal supports used for indoor plastering shall be erected stably and firmly, and the scaffolding span shall not be greater than 2m. The materials stacked on the shelf shall not be too concentrated, and there shall not be more than two people in the same span.

5) Prefabricated components, marble and glazed tiles used for veneering shall be piled up neatly and smoothly and transported at the same time. When installing, hold it steady, and the temporary support can only be removed after the grouting and solidification are stable.

6) When using the grindstone machine, insulating gloves and rubber shoes should be worn. The power cord must not be broken and leaked. The diamond sand block must be firmly installed, and it can only be operated after the trial operation is normal.

7) When working on the roof, you must be careful to squat down and stand up, move slowly, and put all kinds of tools and materials used firmly to avoid falling and hurting people.

8) During multi-level construction, it is strictly prohibited to work on the same vertical plane at the same time.

5.3 Safety operation procedures for steel workers

5.3.1 Materials such as steel and semi-finished products should be neatly stacked according to specifications and varieties, the production site should be flat, the workbench should be firm, and the lighting lamps must be covered with nets.

5.3.2 Straightened steel bars and fixtures should be firmly clamped, ground anchors should be strong and firm, and pedestrians are prohibited in the 2m area along the lacing. Manually grind and straighten, do not touch the push rod with the chest and abdomen and slowly loosen it, and do not loosen it at one time.

5.3.3 The rebar in the unfolded plate garden should be fastened at one end to prevent rebound, and it should be stamped with the foot before cutting.

5.3.4 Before using the cutting machine, check whether the machine is working normally. When cutting, the distance between the hand and the knife edge shall not be less than 15cm, and the steel bar less than 2cm shall not be cut mechanically. Feeding is prohibited when the movable blade advances.

5.3.5 it is forbidden to cut steel bars beyond the load capacity of machinery, and high-hardness blades should be used to cut special steel bars such as low-alloy steel.

5.3.6 cut long steel bars shall be held by special personnel, and the actions shall be consistent during operation and shall not be dragged arbitrarily.

5.3.7 A feeding table should be set beside the cutting machine. It is forbidden to directly remove short heads and sundries near the knife edge by hand during mechanical operation. Non-operators are not allowed to stay near the swinging range of steel bars and the knife edge.

5.3.8 The lifting, falling, turning and stopping actions of multi-person combined transportation of steel bars should be consistent, and the manual transfer should not be on the same vertical line. The steel bars should be scattered and safely stacked to prevent dumping and collapse.

5.3.9 scaffolding and. shall be set up for binding steel bars and installing skeleton in high pit.

5.3.1 when binding columns, the wall reinforcement shall not stand on the reinforcement frame and climb up and down the skeleton, and the column reinforcement shall be within 4m, so it can be tied on the ground or floor with a small weight and erected as a whole. If the column rebar is over 4m, a workbench should be set up, and the column beam skeleton should be fastened with temporary support to prevent toppling.

5.3.11 when binding foundation reinforcement, it should be placed according to the regulations of construction design, and the upper reinforcement shall not be arbitrarily reduced with steel bracket or horse orange.

5.3.12 when lifting the steel skeleton, it is forbidden to stand below, and it is only after the skeleton falls to the ground within lm that it can be approached, and the hook can be unhooked after it is supported in place.

5.3.13 when binding ring beams, overhangs, external walls and side columns of high-rise buildings, an outer frame or safety net should be erected, and the operators should fasten their seat belts.

5.4 scaffolder's safety operation procedures

5.4.1 Strictly check the quality of tools and scaffolding poles and plates used before the tower is erected, and use them only after it is confirmed to be safe.

5.4.2 Steel pipes with an outer diameter of 48-51mm and a wall thickness of 3-3.5 mm should be used for steel pipe scaffolding, and the appropriate lengths are 4-6.5 and 2.1-2.3 m. Those with serious corrosion, bending, flattening or cracks should not be used.

5.4.3 Fasteners shall have factory certificate, and it is forbidden to use them if brittle crack, deformation and slippery thread are found.

5.4.4 The pole layer is made of peeled Chinese fir and other tough hardwoods. Poplar, willow, birch, basswood, Chinese pine, rotten, cracked, withered and other easily broken wooden poles are all prohibited.

5.4.5 bamboo scaffolding poles, main rails, scissors, struts and other effective parts of the small head diameter shall not be less than 7．5cm, small rails shall not be less than 9cm, green, crisp, cracked hemp moth-eaten bamboo poles shall not be used.

5.4.6 The diameter of the small head of the effective part of the wooden scaffold pole shall not be less than 7cm, and the diameter between 6-8 cm can be combined with two poles or encrypted with a single root.

5.4.7 wooden scaffolding shall be made of fir wood or pine wood with a thickness less than 5cm and a width of 2-3cm. Any decayed, twisted, twill, broken and large cross-section shall not be used, and the ends of the board shall be fastened with iron wire or iron sheet at 8cm.

5.4.8 scaffolding can be bound with 8# galvanized iron wire, hemp rope with a diameter not less than lOcm or water onion bamboo.

5.4.9 Wear flexible clothes and labor protection articles when working on shelves, and it is forbidden to wear shoes with hard soles or nails that are easy to slip.

5.4.1 The laying width of the shelf shall not be less than 1．2m, and the scaffolding shall be covered. The laying width of the feeding chute shall not be less than 1．5m, the slope shall not be less than 1: 3, the spacing between anti-skid strips shall not be more than 3cm, and the length of the scaffolding used shall not be less than 2m, the width shall be between 2 and 3cm, and the thickness shall not be less than 5cm.

5.4.11 The outer ramps and platforms of scaffolding shall be bound with lm-high fences and 18cm-high baffles or set up with protective nets.

5.4.12 A bent (outrigger) diagonal bar is generally not more than 3 from the wall at the entrance of doors and windows, and it should be supported in a solid part of the building. Shall not be supported in places such as mouth plate, window eaves, line feet, etc., and all stress points of the frame shall be double-buckled, and protective railings shall be tied at the same time.

5.4.13 scaffold should be inspected before and after the rainstorm and typhoon. If it is found that it is inclined, deformed and sunk, it should be reinforced in time, and any serious danger should be eliminated immediately.

5.4.14 when the height of the steel pipe scaffold exceeds 2m, lightning protection devices should be added to prevent lightning strikes from hurting people.

5.4.15 The safety net shall be erected with a strut every 3m, and the strut and the ground shall generally be kept at 45. The safety net shall be high in the outside and low in the inside, and the splicing between the nets shall be tight, and the sundries in the net shall be removed frequently.

5.4.16 scaffolding such as derrick, portal frame, chimney, water tower, etc., where the height is 1-15m, a set of cables (4-6) shall be set, and one set shall be added for each increased lOm.

5.4.17 When scaffolding is erected or dismantled, tools and materials must be passed up and down with tool bags and ropes. It is forbidden to throw them up and down to prevent accidental injuries.

5.3.18 when dismantling scaffolding, fences or warning signs should be set up around it, and pedestrians are forbidden to enter by designated personnel. Dismantled materials shall be neatly stacked in order and specifications, and shall not be randomly placed.

5.5 safety operation procedures for concrete workers

5.5.1 batching;

1) Wear a mask when handling cement, and wear goggles in windy weather.

2) The mixer platform should be firm and stable, and it is not allowed to be in a shaking state.

3) batching personnel must check whether the access roads, ramps, springboards, hoppers and mixing tables are firm and concentrate before work.

4) The tramcar used for transporting materials must have a brake, and the front and rear cars should keep a distance of more than 15m. Pay attention to whether there is anyone in front.

5) When using trolleys to transport materials, the mixing table shall be provided with ash baffles and railings, and the slope of the chute shall not exceed 15. .

6) No matter what ingredients are used, you are not allowed to run away, loosen the handle or make jokes.

5.5.2 Manual stirring

1) When lifting the iron plate by manual stirring, the iron plate should be lifted horizontally with a thick stick, and the iron plate should be lifted up and laid flat. Don't stand against any place.

2) The iron plate used for artificial mixing must be firmly padded, and it is not allowed to be used. When placing the iron plate on the floor or scaffold without closing, railings and baffles must be set on two or three sides.

3) When mixing manually, we should cooperate with each other to prevent the shovel head from mixing and hurting people on the opposite side or next to it.

4) Contact the tamping personnel when discharging the ash, and let the tamping personnel go away. The tamping personnel below must wear safety helmets.

5.5.3 Mechanical stirring

1) Before starting the mixer, the surroundings must be cleaned, and the mixer, lifting tower, belt conveyor, skip, steel wire rope and transportation road can be checked for safety before starting work.

2) protective covers shall be added to the driving wheels and belts of all kinds of mechanical equipment, and the equipment must have protective grounding devices, and the grounding resistance shall not exceed 4 ohms.

3) Before the mixer starts to work, a can of clean water should be stirred to wet the pot and the stirring blades.

4) When the mixer is running, it is forbidden to put tools such as shovels and rakes into the tank to scrape the ash. When it is necessary to enter the tank for ash removal or repair, switch off the power and assign special personnel to take care of it to prevent power transmission by mistake. In case of power failure, the gate must be opened. Lock the electric door after work every day to prevent accidents.

5) If it is necessary to clean the tribal ash under the mixer bucket, the lifting bucket must be firmly supported with wooden bars to prevent the bucket from falling and hurting people.

6) Clear contact signals must be established to cooperate closely with the work of opening the hoist, scraping aggregate, loading and unloading materials and pushing concrete trucks, and attention should be paid to pedestrians.

7) The operators of windlass and mixer must be special personnel.

5.5.4 Pouring concrete

1) When working in the geosyncline, check whether there is any landslide or the formwork support is not firm.

2) When pouring concrete into the foundation pit and below 2m in the working face, chutes and buckets should be set, and the concrete is not allowed to be poured down directly.

3) When there is no floor slab, the frame beam, single beam, column, balcony and springboard must be watered on scaffolding.

4) When pouring concrete in dark places and at night, there must be sufficient lighting. The voltage of hand-held lighting should be below 36V and rubber cord with good insulation should be used.

5) All personnel pouring concrete below shall wear safety helmets.

6) Before pouring concrete, check whether the vibrator is firmly connected with the machine, and then try the machine. If there is no noise, use it again. If the vibrator is abnormal, please ask an electrician or mechanic for maintenance, and you can't use it reluctantly.

7) Operators of vibrators must wear rubber shoes and gloves, and wet hands are not allowed to touch the electrical switch.

8) The vibrator must be provided with a special protective grounding wire. It is handled by an electrician to avoid the danger of electric leakage.

9) The power cord of the vibrator must be made of tough rubber wire, and the place where the wire enters the vibrator must be protected by rubber sleeve to avoid the risk of electric shock caused by abrasion.

1) When using the vibrator, always check the motor; If you have a fever, you should stop cooling for a while before using it. If the motor heats up too fast or fails to operate, it should be immediately checked by an electrician.

11) The motor belt of the vibrator should be covered with an iron cover to prevent the belt from hurting people.

12) When two or more vibrators are used, a switchboard shall be set up for numbering, and an electrician shall take care of the switch by special personnel and keep close contact with the vibrator operator.

13) The vibrator must be kept and used by a designated person, and others are forbidden and groped around. Clean the vibrator after use. Do not clean the vibrator with wet cloth or water. Stop the operation and cut off the power supply.

14) When operating the vibrator in rainy days, it should be covered with rain-proof materials such as ponchos and plastics to avoid rainwater immersion.

5.6 woodworking safety operation procedures

5? 6? 1 Fire fighting equipment in wood storage and processing places must be complete and convenient. Open flames and smoking are not allowed in woodworking places, and operators must wear the specified protective articles.

5? 6? 2 Remove sharp-edged objects from the work site and check whether the tools and equipment used are in good condition, otherwise they shall not be used.

5? 6? 3. Decadent, twisted and split materials shall not be used for formwork support, the top bracing shall be vertical, the bottom shall be flat and solid and padded, and the wooden wedge shall be nailed firmly and fastened with formwork tie rod and bracing.

5.6.4 shuttering with truss frame should be strictly inspected, and serious deformation and loose screws should be repaired in time.

5? 6.5 shuttering shall be carried out according to the working procedure, and the next working procedure shall not be carried out before the formwork is fixed. It is forbidden to climb up and down with tie rods and supports.

5? 6? Six column templates with a height of more than 4m must be fastened all around, and a workbench should be set up during operation. For those with a height of less than 4m, a horse stool can be used.

5? 6? 7 for independent beam mould should be set up temporary workbench, shall not stand on the mould operation and walking on the beam bottom die.

5? 6.8 Dismantling the formwork shall be subject to the consent of the construction technicians, and the operation shall be carried out in sections in sequence. It is forbidden to pry, smash or pry down or pull down a large area, and leave loose and hanging formwork after the uneven pavilion is finished. Removed templates should be transported to the designated place in time for centralized stacking, so as to prevent nails from pricking feet.

5? 6? 9 Dismantle formwork of prefabricated members such as thin web beam, crane beam, stringer, etc., and add top bracing as it is dismantled to prevent members from toppling.

5? 6? 1 when the slope is greater than 25. Operation on the roof should have protective facilities such as anti-slide, protective fence, etc.

5? 6? 11 wooden frame should be assembled on the ground, which must be assembled continuously, and temporary support should be set when it is interrupted. After the roof truss is in place, ridge sandalwood, tie rod or temporary support should be installed in time. All rigging for lifting materials must be good and firmly bound.

5.6.12 when asbestos shingles are installed on the roof with watchboards, a safety net or other safety protection facilities should be installed on the roof truss, and the operation can be carried out only after the feet with anti-slip strips are hooked firmly. It is forbidden to walk on asbestos tiles.

5.6.13 when installing more than two layers of window sashes for external walls, fasten your seat belt if there is no scaffold or safety net outside. The fixed sash in the middle of the window sash must be firm.

5.6.14 It is not allowed to pass and pile materials directly on the slatted ceiling or sound insulation board, and scaffolding should be laid on the big stare blankly when it is necessary to pass.

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