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依托具体工程实例,对某土岩结合边坡进行了详细滑坡勘察,分析了此次滑坡的具体特征及发生机理:该滑坡由两个相对独立的HP1滑坡、HP2滑坡组成,HP1滑坡主要沿土岩界面滑动,HP2滑坡主要为基岩层面的平面滑动。提出了滑坡的综合治理方案:HP1滑坡采用分级修坡+锚杆格构梁+排水的治理方案;HP2滑坡采用分级修坡+锚杆格构梁+排水+抗滑桩的治理方案。基于抗滑桩的基本原理,将‘m’法运用到此次抗滑桩的设计计算中,对类似工程的处理提供了可借鉴的经验。
Relying on specific engineering examples, a detailed landslide investigation was conducted on a soil-rock joint slope, and the specific characteristics and mechanism of the landslide were analyzed. The landslide consists of two relatively independent HP1 landslides and HP2 landslides, Rock interface sliding, HP2 landslide is mainly flat bedrock plane sliding. Proposed a comprehensive landslide control program: HP1 landslide with grading slope + bolt lattice beam + drainage of treatment programs; HP2 landslide using grading slope + bolt lattice beam + drainage + anti-slide piles of governance programs. Based on the basic principle of anti-slide pile, the method of ’m’ is applied to the design and calculation of the anti-slide pile, which provides experience for the similar engineering.