The specific practices of border protection are as follows:
1. The steel railings and railings of the side guard rails are all Φ48*3.5mm pipes and fastened by fasteners or welding.
2. The guard railing is composed of two crossbars and railing columns. The height of the upper crossbar is 1.2 meters. The height of the lower crossbar is 0.6 meters. The total length of the vertical pole is 1.7 meters. It is buried 0.5 meters underground. The distance is 2 meters. A C15 concrete block foundation is set every 4 meters of poles. The base size of the raft is 0.3 x 0.3 x 0.5 meters, and the pole is set in the center.
3. The protective railings must be closed from top to bottom with a safety net, and the security grid should be closed to the top of the brick wall. Under the railing, a tightly fixed 24-wall brick wall with a height of 30 cm was set up and a mortar was applied.
4. All the guardrails are marked with red and white paint with striking colors. The distance between the red and white steel paint is 20cm. A 4m wide safety channel is set on the west side of the pit and a warning sign is hung around the guardrail. "," "Beware of falling down" and other prohibitions and warning signs.
5, the surrounding of the pit should be clear warning stacked steel wire can not be more than 3 meters outside the basement pit line warning line, the pit side of the warning line is strictly prohibited to stack all the materials.
1. The steel railings and railings of the side guard rails are all Φ48*3.5mm pipes and fastened by fasteners or welding.
2. The guard railing is composed of two crossbars and railing columns. The height of the upper crossbar is 1.2 meters. The height of the lower crossbar is 0.6 meters. The total length of the vertical pole is 1.7 meters. It is buried 0.5 meters underground. The distance is 2 meters. A C15 concrete block foundation is set every 4 meters of poles. The base size of the raft is 0.3 x 0.3 x 0.5 meters, and the pole is set in the center.
3. The protective railings must be closed from top to bottom with a safety net, and the security grid should be closed to the top of the brick wall. Under the railing, a tightly fixed 24-wall brick wall with a height of 30 cm was set up and a mortar was applied.
4. All the guardrails are marked with red and white paint with striking colors. The distance between the red and white steel paint is 20cm. A 4m wide safety channel is set on the west side of the pit and a warning sign is hung around the guardrail. "," "Beware of falling down" and other prohibitions and warning signs.
5, the surrounding of the pit should be clear warning stacked steel wire can not be more than 3 meters outside the basement pit line warning line, the pit side of the warning line is strictly prohibited to stack all the materials.
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