云南某膨胀土地基路堤滑坡治理研究

针对云南某膨胀土斜坡地基上路堤滑坡,从地形地貌、裂缝分布、人为因素等方面分析了成因.结合补充勘察、深层观测确定主滑动面位置,通过室内试验和稳定性反算确定滑带强度参数.在计算下滑力的基础上,结合路堤填料情况、施工条件、滑坡体状况确定了卸载+抗滑桩分级支挡+路基加筋+排水梳理坡面防护的综合处置方案,并取得了良好的处置效果.

Study on Improvement of an Expansive Soil Foundation Embankment Landslide in Yunnan

Aiming at the embankment landslide on an expansive soil slope foundation in Yunnan, its causes are analyzed from the aspects of topography, landform, fracture distribution, human factors and etc. Combined with the supplementary survey and deep stratum observation, the main sliding surface position is determined. The intensity parameters of slip zone are determined through the laboratory tests and the stability inversion calculation. On the basis of calculating the gliding force, combined with the embankment filling condition, construction condition and landslide mass situation, the comprehensive improvement scheme of unloading + anti-slide pile classification retaining + reinforced roadbed + drainage slope protection is determined. And the good improvement effect is obtained.