Study on stability against deep slide with multiple slip planes in gravity dam

yangzhiyong; chen jiankang; wu zhenyu; yangcan

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Study on stability against deep slide with multiple slip planes in gravity dam

更新时间：2023-11-14

- Study on stability against deep slide with multiple slip planes in gravity dam
- Advanced Engineering Sciences Vol. 47, Issue Z1, Pages: 31-35(2015)
- 作者机构：
  
  四川大学水电学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：27 November 2014，
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杨志勇,陈建康,吴震宇,裴亮,张国智,杨灿.重力坝深层抗滑稳定多滑面计算方法探讨（研究生论坛）[J].工程科学与技术,2015,47(Z1):31-35.

yangzhiyong, chen jiankang, wu zhenyu, et al. Study on stability against deep slide with multiple slip planes in gravity dam. [J]. Advanced Engineering Sciences 47(Z1):31-35(2015)
杨志勇,陈建康,吴震宇,裴亮,张国智,杨灿.重力坝深层抗滑稳定多滑面计算方法探讨（研究生论坛）[J].工程科学与技术,2015,47(Z1):31-35. DOI：

yangzhiyong, chen jiankang, wu zhenyu, et al. Study on stability against deep slide with multiple slip planes in gravity dam. [J]. Advanced Engineering Sciences 47(Z1):31-35(2015) DOI：

摘要

中文摘要: 当重力坝坝基存在复杂深层缓倾软弱结构面时，滑裂面出现多滑面形式或滑移节点较大偏移坝址垂线，若直接按照规范以双滑面计算式列出各滑移体的算式求解安全度，存在两个问题：（1）建基面上水平荷载和铅直荷载在滑移体上的分配方法多样；（2）计算公式复杂，不利于迭代计算。该文将上部荷载分别按应力和重力进行分配，利用等安全度的思想简化计算公式，得到了分项系数和单一安全系数多滑面计算式。工程实例证明：（1）采用简化的多滑面计算式验算重力坝深层抗滑稳定安全度是可行的；（2）上部荷载按应力分配的计算结果较重力分配法偏于安全；（3）将多滑面简化为双滑面计算得到安全度偏大。

Abstract

Abstract:When there were numerous deep and weak planes in the gravity dam foundation

the calculation model was always simplified into multi-slip planes model. There were two main issues if the safety factor still was calculated as the Gravity Dam Design Code（DL5108－1999）and (SL319-2005): (1) the distribution of horizontal and vertical loads was vary; (2) the formula was too complex to calculate iteratively. So the calculation formulas of simplified partial factor and single safety factor were derived by using the equal safety coefficient method. It was proved by practical engineering: (1) be more practicable by applying the deduced formulas to calculate the safety coefficient of multi-slip planes model;(2) the safety factor calculated by the stress distribution method was smaller than by the gravity distribution method;(3) the safety factor calculated by directly simplifying the multi-slip planes model into double slip planes model was larger than by multi-slip planes model.

关键词

重力坝多滑面抗滑稳定计算式

Keywords

gravity dammulti-slid planesstability against slidingcalculation formula

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North China Univ. of Water Resources and Electric Power

People’s Government of Lidian Town, Guangling District, Yangzhou City

State Key Lab. of Hydraulics and Mountain River Eng., College of Water Resources & Hydropower, Sichuan Univ.

四川大学水利水电学院四川

武汉大学水资源与水电工程科学国家重点实验室

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