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本文以四川沙坪~九龙220kV线路N2号塔位滑坡治理为例,结合调查和钻探成果对滑坡体的成因及可能影响的范围进行详细而全面的分析,通过反演分析推导岩土层抗剪强度参数,并进一步通过定量计算评估现状滑坡体及其形成的潜在不稳定斜坡的稳定性,然后综合定性和定量两方面成果,结合边坡可能的滑塌形式、影响范围以及坡体岩土层结构特征,针对性的选择在狭窄场地范围采用悬臂式桩板挡墙方案对该滑坡进行治理设计,该治理方案施工可操作性强、成本费用经济。
In this paper, taking the No.22 slipway landslide in Shaping-Kowloon 220kV transmission line in Sichuan as an example, the causes of the landslide body and the range of its possible influence are analyzed in combination with the investigation and drilling results. The shear strength of the rock-soil layer Then the stability of the landslide and the potential unstable slope formed by the current landslide body are evaluated by quantitative calculation. Based on the qualitative and quantitative results, the possible types of landslides, the scope of influence and the structure of rock and soil mass Characteristics and Targeted Options The design of this landslide is designed using a cantilever piled retaining wall scheme in a narrow space. The treatment scheme is easy to operate and cost-effective.