What are the practices of foundation pit guardrail?

Border protection

Specific practices are as follows:

1, the limb protective railing is made of steel pipe railing, and the railing is made of φ 48 * 3.5 mm pipe, which is fixed by fasteners or electric welding.

2. The protective railing consists of two cross bars and railings. The height of the upper rail from the ground is 1.2m, the height of the lower rail is 0.6m, the total length of the vertical rods is 1.7m, and the spacing between the vertical rods is 2m. A C 15 concrete block foundation is set for the vertical reinforcement every 4m, and the size of the concrete foundation is 0.3× 0.3× 0.

3, protective railings must be closed with a safety net from top to bottom, and the safety net is closed to the height of the top of the brick wall. The bottom of the railing is fixed firmly with 24 brick walls with a height of 30 cm, and plastered with mortar.

4. All guardrails shall be painted with red and white paint with striking warning color. The interval between red and white paint of steel pipes shall be 20cm. On the west side of the foundation pit, a 4-meter-wide safety passage should be set according to the brush slope, and warning signs such as "Do not climb over" and "Be careful of falling" should be hung around the guardrail.

5. Around the foundation pit, it should be clearly warned that the piled steel wire should not exceed the warning line of 3 meters at the edge of the foundation pit, and it is forbidden to pile up all materials in the warning line at the edge of the foundation pit.