黄土高原沟谷型滑坡整治研究——以延安市子长县阎家沟滑坡为例

摘要

Taking the Yanjiagou landslide in Zichang county of Yan'an as an example, this paper analysed the developing features and reactivation mechanism of the valley-type landslides.The fundamental cause of the reactivation of the valley-type loess landslide is thought to be the continuous erosion on the landslide body,which produces a new free face at the toes of landslides.Countermeasures based on incorporation of side retaining walls and water drainage are proposed to realize low-cost remediation of valley-type loess landslides.%以延安市子长县阎家沟滑坡为例,分析了沟谷型滑坡的发育特征和复活机理,认为沟谷型黄土滑坡再次产生失稳破坏的根本原因是水流不断冲刷侵蚀滑坡体,使滑坡前缘产生新的临空面,提出了基于"侧挡+排水"的整治措施,实现了低成本的沟谷型黄土滑坡的整治.