Safety management of tunnel construction?

What is the specific content of safety management in tunnel construction? The following is the answer of Zhong Da Consulting Company.

A, tunnel staff matters needing attention:

1, all tunnel construction personnel must wear safety protection articles (safety helmet, safety belt, insulating rubber shoes, dustproof articles, etc.). ) in accordance with the regulations, otherwise, it is forbidden to enter the tunnel.

2, suffering from heart disease, hypertension, neurasthenia, epilepsy, color blindness and severe eye and ear defects, are not allowed to enter the hole or participate in tunnel work.

It is forbidden to enter the tunnel after drinking. Construction personnel entering the tunnel must strictly abide by the operating rules and safety operating rules. No one is allowed to operate illegally, adhere to safety first, prevention first, and nip in the bud.

4. All motor vehicles in the tunnel must be kept and used by special personnel, and the brakes in the overspeed direction are poor. It is forbidden to drive and ride indiscriminately.

5. Electricity for construction in the tunnel, including lighting lines, shall be installed by electricians according to regulations. It is forbidden to connect and hang randomly.

6, blasting operations, strictly abide by the rules and regulations, obey orders, obey orders, must be trained and hold a blasting operation certificate as a blaster, in accordance with the provisions, receive transportation, storage, use of initiating explosive devices, shall not be careless, be foolproof.

7. When entering the hole, you must pay attention to the dangerous surface of the anchor-shotcrete area, whether the scaffold platform is firm, whether the lighting meets the requirements, and the work scope is not allowed. No one is allowed to get close to it.

8, tunnel construction monitor, must make a good record of succession.

Second, the tunnel electricity safety standards

1, the tunnel line design has requirements and conforms to relevant regulations, and the "three-five-line" system is implemented, with power and lighting separated.

2. Tunnel lighting must use 36v safe voltage.

3, electrical equipment in the tunnel must be "just one brake one insurance", distribution box must have a door lock.

4, cable laying in the tunnel should also comply with the relevant provisions.

5, tunnel lines and electrical equipment problems must be handled by the electrician on duty.

Three. Safety measures for full-face tunnel construction

1, resolutely implement the policy of safe production, ensure the safety of railway tunnel construction and prevent accidents.

2, to participate in the construction of all construction personnel must carry out safety education, regular safety inspection and assessment, qualified rear can mount guard operation.

3, establish and improve the safety inspection production organization, adhere to the team named safety, safety inspection on Monday, earnestly implement the post responsibility system as the center of the safety inspection system, give full play to the role of organizations at all levels to ensure construction safety.

4, for all kinds of accidents in strict accordance with the "three-no pass" (that is, the cause of the accident is not clear, the responsible person and the masses are educated, and no safety precautions have been formulated and taken).

5, in strict accordance with the technical operation procedures, do a good job in smooth blasting, in order to maintain the integrity of surrounding rock, enhance its bearing capacity, improve the stability of surrounding rock, is to put an end to the "dangerous surface" in the working face, effectively ensure the construction safety, and put an end to the implementation of personal injury accidents.

6, blasting 20 minutes rear can enter the working face. Must be designated persons to protect and find the roof.

7. According to the situation of surrounding rock, bolt-shotcrete net support should be implemented as soon as possible after blasting, and the surrounding rock should be closed in time.

8, often check the support situation, found that the support variation, spray layer abnormal cracks, immediately notify the workers to stop working and evacuate, after reinforcement to ensure safety before operation.

9. Strengthen monitoring and measurement, and guide construction according to monitoring and measurement data. If there is any sudden change or variation in the measurement data, the person in charge of the site shall be informed immediately after the measurement, and emergency measures shall be taken immediately to inform the construction personnel to temporarily evacuate the dangerous area to avoid, and the construction shall be carried out after the treatment measures are formulated.

Four, the tunnel excavation safety technical measures

1. Personnel participating in the construction must receive safety technology education and take safety examinations regularly. Only after passing the qualification can you work at your post.

2, into the tunnel construction personnel, must wear safety protection articles in accordance with the provisions, ZunZhangShouJi, obey the command, it is strictly prohibited to drink, sick people into the hole.

3. After the driller arrives at the work site, he should first check whether the working face is in a safe state, such as shotcrete and bolt support, and whether the top of the excavation face and two groups of bedrock are stable. If there are loose rocks, they should be supported or removed immediately.

4, drilling personnel before each working procedure operation, should check whether the pneumatic drill, feng shui pipe joint is firm, it is forbidden to dry drilling, drilling and charging.

5. When drilling with a pneumatic drill with a bracket, the bracket should be firmly placed. When drilling holes in ballast piles, attention should be paid to the stability of ballast to prevent people from falling and sliding during operation. It is forbidden to continue drilling in the residual eye.

6. For smooth blasting, explosives with low density, low strength, low detonation velocity or high explosive force should be selected, and other explosives should be modified.

7, hole blasting operations, must be unified command. During blasting, all personnel should be evacuated to a place free from harmful gas vibration and flying stones, with a safe distance of more than 200 meters.

8, after blasting, must go through ventilation and smoke exhaust, construction personnel are allowed to enter the working face, and the interval shall not be less than 15 minutes.

9. After blasting into the working face, inspectors should pay attention to the presence of misfire. When the misfire is found, the original blaster must deal with it according to the regulations; Whether there are residual explosives or detonators, whether there are loose rocks, and whether the bolting and shotcreting support is damaged or deformed.

10, drilling and charging are generally not allowed to work equally. In order to prevent the lighting from going out suddenly in the middle of the gun, the blaster should carry a flashlight.

1 1, when the working face is close to the breakthrough, we should strengthen the contact between the two ends and unify the command. When the distance between two working faces is eight times of the circulation size (not less than15m), stop working at one end, evacuate personnel and machines, and set warning signs at a safe distance.

12, the processing of blasting equipment is carried out in the processing room 50 meters away from the hole. Personnel who process blasting equipment and carry out blasting operations are prohibited from wearing chemical fiber clothing.

13. Construction personnel shall abide by the relevant regulations and standards of the state, the Ministry of Railways and the Ministry of Construction in addition to this regulation.

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