How to do a good job in the safe construction of excellent construction sites.

How to do a good job in the safe construction of excellent construction sites. The following Zhong Da consults the bidding teacher to answer your questions for your reference.

1, tower crane fence

1) A fence is set around the tower crane and locked to prevent irrelevant personnel from entering;

2) Tower cranes and other equipment can be used only after passing the safety inspection and filing;

3) tower crane foundation pit can not have water;

4) Tower crane distribution box and tower body should be grounded repeatedly;

5) Regularly inspect and maintain tower cranes and other equipment.

2, the hole, limb protection (a)

1) The hole with a diameter greater than 20cm and the "five sides" need to be protected;

2) Covering with hard materials;

3) Large openings and borders need to be protected by steel railings;

4) Protective facilities shall be warned with two-color paint.

3, the hole, limb protection (2)

1) The strength of protective materials meets the requirements;

2) The protection height meets the requirements (≮1.5m);

3) Set the pedal.

4) A safety net should be hung above the elevator shaft enclosure to prevent the objects above the shaft from popping up after falling and hurting people.

4. junction box

1) TN-S system, three-phase four-wire system (five-core cable) should be adopted for construction electricity;

2) Construction power consumption shall conform to "three-level distribution and two-level protection";

3) The distribution box shall be equipped with power disconnectors (with obvious breakpoints) and short circuit, overload and leakage protectors, which are generally not more than 30mA, 0.1s; ;

4) When necessary, the distribution box should be repeatedly grounded;

5) Each equipment must have a special switch box (one switch and one protection);

6) safe voltage should be used in special places.

5. People and goods elevator

1) The passenger and cargo elevator shall have the ex-factory certificate and disassembly scheme, which shall be installed by qualified units and personnel and used after passing the security check and filing;

2) The passenger and cargo elevators shall be used within the time limit when they pass the security inspection, and must be re-inspected after the expiration;

3) Safety protection devices (fall prevention devices, limit switches, alarm facilities, etc.). ) should be used within the qualified period, and must be re-inspected after the expiration;

4) The free end at the top of the people and goods elevator and material hoist shall not be less than 6m.

6. Movable scaffolding

1) The chassis of the mobile scaffold is enlarged to increase the overturning resistance;

2) All four wheels have braking devices;

3) The top is protected by a fence.

7, high formwork protection

1) For tall formwork (height exceeding 8m or span exceeding 18m), a special construction scheme shall be specially prepared, and an expert group shall be organized for demonstration and review;

2) High formwork can be protected by horizontal partition;

3) The high formwork can only be put into use after passing the inspection and acceptance.

8. Unload the platform

1) Try to use the whole unloading platform;

2) The section steel and wire rope of the discharging platform should have a calculation sheet;

3) Fencing should be made around the discharging platform;

4) The unloading platform shall not be overloaded. When calculating, the margin should be enlarged appropriately to increase the safety factor.

9. Safe passage

1) There should be a safe passage to enter the construction operation area to ensure the safety of personnel entering and leaving;

2) The safe passage adopts double-layer protective shed;

3) The doorway of the passage should be strengthened.

10, material hoist

1) Material hoist shall have factory certificate and installation and removal scheme;

2) Installed by qualified units and workers, and used after safety inspection and filing;

3) The safety devices of the hoist shall be complete (anti-falling safety devices, automatic interlocking, etc.). );

4) Hoist shall not be manned;

5) The entrance to the floor should be provided with protective doors and protective railings;

6) The operator should make the whole operation process of the material hoist visible, otherwise a camera should be installed;

1 1, tower crane operation radius protection

1) Generally, it is not appropriate to set the processing zone within the working radius of tower crane;

2) If there is a processing zone, be sure to protect it (protective shed on the second floor).

12, typhoon reinforcement

1) Pay attention to safety and health during construction, and have fire-fighting equipment;

2) Temporary houses should be strengthened against typhoon;

3) If the temporary house is within the working radius of the tower crane, a protective shed shall be erected on the roof.

13, curtain wall welding operation

1) Curtain wall welding needs to apply for a hot certificate in advance, which will be approved by the general contractor;

2) During curtain wall welding, fire control measures should be complete, such as using fire bucket, equipped with fire fighting equipment, setting fire prevention duty, and patrolling for half an hour after welding;

3) The distance between the curtain wall foot (curtain wall steel frame) and the building exceeds 30cm, and a horizontal pocket net should be set.

14, deep foundation pit operation

1) Deep foundation pit support construction and excavation construction should have a special special construction scheme, and deep foundation pits over 5m should be reviewed by an expert group;

2) Deep foundation pit operations shall be carried out by qualified units;

3) Effective foundation pit monitoring should be carried out during deep foundation pit operation, and the civil engineering unit should have entered the site when digging.

4) The supervisor should strengthen the inspection and inspection of the deep foundation pit operation process, and convene an expert group to discuss the problems in time.

15, site safety and civilized management

1) The site layout of "seven cards and one map" should be neat and eye-catching;

2) There are signs of major hazard sources, safety bulletin boards and other facilities on site;

3) The main construction road is hardened, and there is a washing table;

4) Take dustproof measures;

5) Noise reduction and sound insulation measures should be taken to avoid disturbing people;

6) Dormitories, canteens and toilets meet the hygiene requirements;

7) Materials and articles shall be neatly stacked.

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