某高速公路渗水性边坡滑塌分析及治理

Analysis and Governance of Water Permeability Slope Slump of an Highway

某省高速公路K24＋ 200～K24＋ 600路段工程施工为挖方路堑,开挖过程中坡体产生较大变形破坏,且坡体表面渗水严重,难以保证其稳定性.此文根据该路段地形地貌、水文地质条件和气象条件,对边坡渗水性原因进行分析.通过分析与研究,提出采用边坡支撑渗沟、仰斜式深层排水孔、渗水盲沟等地下排水措施与地表排水措施相结合的设计方案来治理该渗水性边坡.为避免施工过程中出现意外情况,并提出加固处理施工中的注意事项。

The K24 ＋ 200 - K24 ＋ 600 road construction in an province highway is the excavation roadbed. The slope excavation process produces large deformation, the damage and slope surface water seepage is seri- ous. It is difficult to ensure its stability. According to the landform, hydrogeological conditions and mete- orological conditions, the cause of water permeability of slope is analyzed. Through the analysis and research, the slope supporting sewer, back slope form deep underground drainage measures such as blind ditch of ooze water, drain holes and surface drainage measures of combining the design scheme to control the water permeability of slope are put forward. To avoid unexpected cases appeared in the process of con- struction, some matters needing attention in construction are also puts forward.