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路堑由天然地层构成,开挖后改变了地层的原有平衡,边坡易发生变形和破坏,挖方路堑地段常发生如滑坡、崩塌、落石及翻浆等路基病害。因此,施工方法与路堑边坡的稳定有密切关系,开挖方式应根据路堑的长度和深度,以及地形、地质、土石方调配情况和机械设备条件等因素确定,以加快施工进度,保证过程质量,提高工作效率。
The cutting is composed of natural strata. After excavation, the original balance of the strata is changed, and the slope is prone to deformation and damage. There often occurs roadbed diseases such as landslide, collapse, rockfall and spattering in the digging and cutting areas. Therefore, the construction method is closely related to the stability of the cutting slope. The excavation method should be determined according to the length and depth of the cutting, as well as the terrain, geology, earthwork allocation and mechanical equipment conditions in order to speed up the construction progress, ensure the quality of the process, Improve work efficiency.