边坡防护网在边坡加固治理中的施工注意事项
Construction precautions for slope protection net in slope reinforcement and treatment
1 土钉、锚杆成孔深度、孔径、倾角要求按己设计好的施工参数施工。各工序施工均应严格按现行有关规程规范要求进行。
The drilling depth, aperture, and inclination angle of soil nails and anchor rods shall be constructed according to the designed construction parameters. Each construction process should be strictly carried out in accordance with the current relevant regulations and specifications.
2 采用锚杆支护时应注意尽可能采用无水钻进，不得采用清水钻进。
When using anchor rod support, attention should be paid to using waterless drilling as much as possible, and water drilling should not be used.
3 砂浆配合比按室内配合比试验结果确定，注浆应饱满。锚杆内注浆前应清孔干净，不得留有残渣。
The mortar mix ratio shall be determined based on the indoor mix ratio test results, and the grouting shall be full. Before grouting inside the anchor rod, the hole should be cleaned thoroughly without leaving any residue.
4 当土钉、锚杆施工完毕后，锚固体强度达到设计强度等级的75％时，应进行验收试验，试验数量按规范要求。
When the construction of soil nails and anchor rods is completed and the strength of the anchor body reaches 75% of the design strength level, acceptance tests should be carried out, and the number of tests should meet the requirements of the specifications.
5 锚杆施加预加力均为锚杆设计承载力的40％，分两次张拉，第一次张拉总预加力的60％，第二次张拉总预加力的40％，锚固体强度须达到设计强度的70％后方可进行张拉。
The pre tensioning force applied to the 5 anchor rods is 40% of the designed bearing capacity of the anchor rods, divided into two stages of tensioning. The first stage of tensioning accounts for 60% of the total pre tensioning force, and the second stage of tensioning accounts for 40% of the total pre tensioning force. The anchor body strength must reach 70% of the design strength before tensioning can be carried out.
6 在边坡顶、底修筑排水沟，尺寸300x300，排水沟M10水泥砂浆抹面，厚度≥10mm。同时在坡面设置一定数量的泄水孔，纵向孔距3.00m，横向孔距3.00m，采用φ50PVC管，长度≥400mm，呈梅花形布置。
6. Construct drainage ditches at the top and bottom of the slope, with a size of 300x300. The drainage ditch should be plastered with M10 cement mortar, with a thickness of ≥ 10mm. At the same time, set a certain number of drainage holes on the slope, with a longitudinal hole spacing of 3.00m and a transverse hole spacing of 3.00m, using φ 50PVC pipe, length ≥ 400mm, arranged in a plum blossom shape.
