摘要
萨里克特水电站HP4号滑坡体为老滑坡,由于施工期间在滑坡体后缘堆放弃渣,现场难以直观和准确揭露现有滑坡壁,对滑坡体活化成因、稳定性边界条件分析的确定产生意见分歧,需进行成因及稳定分析判定及治理。对滑坡体的治理方法诸多,采用压脚法治理滑坡体,产生较大的土方量,并且随着压脚体的体积增大,滑坡体抗滑稳定安全系数变化甚微。通过对滑坡体稳定和敏感性分析,发现利用压脚体土方量达到临界稳定值,进行滑坡体的控制和治理,可使滑移速度骤减,阻滑效果显著。同时有效解决土方倒运量较大和削坡、卸荷土方量的不平衡问题,处理措施也较为经济。
The landslide of HP4 in the Snrikert hydropower station is the old landslide, and it is difficult to intuitively and accurately expose the existing landslide wall due to the dumping of the slag at the trailing edge of the landslide during the construction. And the disagreement is happen for the landslide activation causes and stability boundaries condition analysis and determination, so we need to determine and control the formation causes and stability analysis. There are many ways to treat landslide bodies, if we use the presser foot method to control the landslide body, resulting in a large amount of earthwork and with the pressure food body volume increasing, the anti-sliding stability of the safewy factor changes little. Based on analysis of the stability and sensitivity of the landslide, it is found that the earth pressure of the presser foot body reaches the critical stability value, at the same time, we control and manage the landslide body and make the slip speed drop and the slippage effect is remarkable. The method can effectively solve the problem of imbalance between earthwork and slump and unloading earthwork and the treatment measures are more economical.
出处
《陕西水利》
2017年第4期104-106,共3页
Shaanxi Water Resources
关键词
滑坡体
探坑
蠕滑
稳定分析
The sliding body
the deep ditch
creep sliding and stability analysis
