| 陕北某电厂人工高边坡变形破坏模式分析及其治理 |
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| 引用本文： | 刘厚健,刘志伟,鄢治华. 陕北某电厂人工高边坡变形破坏模式分析及其治理[J]. 武汉大学学报(工学版), 2007, 0(Z1) |
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| 作者姓名： | 刘厚健 刘志伟 鄢治华 |
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| 作者单位： | [1]西北电力设计院 [2]西北电力设计院 陕西西安 [3]陕西西安 |
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| 摘 要： | 陕北某电厂人工高边坡岩土组合复杂,存在黄土、粉土、中细砂及砂岩、泥岩,岩体抗风化能力差,且坡体中部有断层通过.人工开挖后边坡坡顶、坡面发生明显变形破坏,并有进一步发展的趋势.通过对边坡的变形破坏模式分析,提出了以锚杆框架格构、锚筋桩框架格构为主,并采取不同坡比分级放坡的边坡治理方案.三维模拟结果和施工完成后位移监测资料显示,该边坡处理方案符合边坡工程地质条件,能恰到好处地平衡边坡开挖后的应力应变的改变,工程措施达到了安全、经济的目标.
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| 关 键 词： | 边坡变形 破坏模式 边坡治理 应力应变分析 |
Failure pattern analysis of a cutting high slope of a power plant in North Shaanxi and its treatment |
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| LIU Houjian,LIU Zhiwei,YAN Zhihua. Failure pattern analysis of a cutting high slope of a power plant in North Shaanxi and its treatment[J]. Engineering Journal of Wuhan University, 2007, 0(Z1) |
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| Authors: | LIU Houjian LIU Zhiwei YAN Zhihua |
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| Abstract: | For a cutting high slope in North Shaanxi,the soil and rock of the slope is composed of loess,silt,fine sand,medium sand,mudstone and sandstone,which are of weak anti-weathering ability.And there is a fault passing through the slope.Obvious distortion and failure occured at the top and surface of the slope after excavation.The distortion and failure still have a developing trend.Based on the failure mode analysis,teatment measures combining the lattice frame anchor structure and lattice frame steel piles with stepped excavation according to different gradient ratios were adopted.The result of 3-D modeling and displacement monitoring shows that the proposed treating measures are suited to the engineering geological condition.The treating measures can equilibrate the change of stress and strain after excavation;and it is safe and economical. |
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| Keywords: | slope distortion failure mode treatment of slope stress-strain analysis |
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