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以半坡滑坡为研究对象,通过该滑坡的工程地质条件和成因机制分析,确定其在地质历史时期曾发生两次失稳破坏。选取具有代表性的滑坡纵剖面,恢复原始地形,根据极限平衡原理,采用slide软件对滑带土的抗剪强度参数进行反演分析。同时,结合室内土工试验,类比周边临近相似工程,综合确定滑带土的抗剪强度参数,计算滑坡在各种工况下的稳定性,可为同类工程抗剪强度参数的确定提供参考。
Taking the Banpo landslide as the research object, through the analysis of engineering geological conditions and genetic mechanism of the landslide, it has been confirmed that two landslides have occurred in the geological history. Select the representative longitudinal profile of landslide to restore the original terrain. According to the principle of limit equilibrium, the shear software is used to invert the shear strength parameters of the landslide soil. At the same time, combined with indoor geotechnical test, analogous neighboring similar projects, comprehensively determine the shear strength parameters of landslide soils, and calculate the stability of landslides in various conditions, which can provide reference for the determination of shear strength parameters of similar projects.