Before the construction of cable marker post foundation, the situation of adjacent crude oil buildings or structures, as well as underground pipelines, etc. should be carefully investigated, and appropriate isolation and shock absorption measures should be taken to avoid damaging the original buildings, structures, underground pipelines and accidents. Now let's talk about a variety of things that the cable marker post construction personnel need to know for safe construction.

1. Site personnel must wear all kinds of safety protection articles, and special operation personnel should work with certificates.

2. Mechanical equipment must be inspected, repaired and maintained before construction. The cables used in construction must be carefully checked and can be used only after they are confirmed to be safe.

3. On site construction personnel must wear job cards, and construction personnel must wear uniform and safety helmets.

4. Guardrails shall be set around the pile hole and obvious signs shall be made to prevent on-site personnel from falling into the hole, and miscellaneous personnel shall not enter the construction area.

5. Sufficient lighting shall be provided in the construction site at night. The pile holes that are suspended from construction must be closed with cover plates. If necessary, obvious warning signs should be set up, and red warning lights should be set at dangerous places at night.

6. In case of water seepage in the shaft wall during excavation, it shall be drained in time.

7. The distance between the marker post and the pile foundation is small, and the skip excavation method should be adopted during construction. The small distance between the soil dumped by the drill bucket and the pile orifice should not be less than 6m, and should be removed in time.

8. Pile holes with a depth greater than 10 meters shall be equipped with air supply devices, which shall be supplied 5 minutes before each commencement; If there are toxic and harmful gases in the detection hole, conduct gas detection again after ventilation for 15-30 minutes until the gas concentration meets the requirements of safe operation, and continue to ensure good ventilation during operation.

In case of uplift, subsidence or other special conditions during pile driving, the construction shall be stopped and adjusted before continuing.

During pile driving, it is strictly forbidden to take and pull the pile head cushion by hand, and it is strictly forbidden to lift or brake the pile hammer before hitting the pile top, so as to avoid damaging the pile foundation equipment of marker post.

In case of serious hole wall collapse, quicksand and water gushing during manual hole digging operation, underground personnel shall immediately evacuate to the ground and continue construction after taking reliable safety measures.

The above is all about the problems and precautions introduced to you today. I hope it can help you. If you want to know more, you can contact us by phone or follow our website http://webtest2.daoshangbao.cn , our staff will contact you in time.