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永泰旗山滑坡是福建省少见的深层中型岩质滑坡之一,2010年“5.18”强降雨诱发,滑坡中后缘拉张裂缝发育,前缘出现剥落、掉块、鼓胀、小滑坡,出现较明显的滑动征兆,采取应急卸方减载11×10~4 m~3,对滑坡稳定性起了重要作用。为彻底消除滑坡隐患,对滑坡进行了详细勘察、监测以及施工图设计。文章基于旗山滑坡变形活动特征,采用抗滑桩联合预应力锚索支挡+削坡减载联合坡面防护+微型桩局部加固+截排水(地表及地下)综合治理方案,为福建省相关类型滑坡防治提供参考案例。
The Yongtai Qishan landslide is one of the rare deep medium-sized rock landslides in Fujian Province. In 2010, the “5.18” strong rainfall induced the development of the extensional cracks in the back edge of the landslide. The front edge was exfoliated, dropped, bulged, The obvious slip signs appear. Taking emergency unloading to load 11 × 10 ~ 4 m ~ 3, plays an important role in landslide stability. In order to completely eliminate landslide hazards, detailed investigation, monitoring and construction design of the landslide were carried out. Based on the deformation activities of Qishan landslide, the anti-slide pile combined with prestressed anchorage + combined with slope protection and load shedding protection + partial reinforcement of mini-pile + integrated drainage and drainage (surface and underground) Type landslide prevention provide reference case.