Stability analysis of left bank B2 debris Jinanqiao Hydropower
Station at Jinsha River

SUN Shao-rui; WU Ji-min; DONG Zhi-gao; WANG Wen-yuan; ZHOU Hong; WANG Kun; WEI Ji-hong

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Stability analysis of left bank B2 debris Jinanqiao Hydropower Station at Jinsha River

更新时间：2026-06-25

- Stability analysis of left bank B2 debris Jinanqiao Hydropower Station at Jinsha River
- Vol. 27, Issue S2, (2006)
- 作者机构：
  
  1. 河海大学岩土工程研究所,南京,210098
  2. 河海大学科学研究院,南京,210098
  3. 河海大学土木工程学院,南京,210098
  4. 昆明勘测设计研究院,昆明
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU457
- Online First：16 December 2006，
  
  Published：2006
- 稿件说明：
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SUN Shao-rui, WU Ji-min, DONG Zhi-gao, et al. Stability analysis of left bank B2 debris Jinanqiao Hydropower Station at Jinsha River[J]. 2006, 27(S2).
DOI：

SUN Shao-rui, WU Ji-min, DONG Zhi-gao, et al. Stability analysis of left bank B2 debris Jinanqiao Hydropower Station at Jinsha River[J]. 2006, 27(S2). DOI：

摘要

对金安桥水电站左岸下游B2崩塌堆积体的工程特性进行研究，重点分析了凝灰岩夹层分布形式、分布特点，并提出了其对崩塌体的稳定性产生的影响以及可能导致崩塌体的破坏类型。运用2D有限元及极限平衡分析法分别对崩塌体的稳定性进行分析，由此得出：B2崩塌体按松动体底面和凝灰岩夹层组合滑动面的安全系数满足工程要求；地震作用对崩塌堆积体的影响较天然状态下大，根据极限平衡理论的最弱面搜索结果及计算结果，沿崩塌堆积体底面和凝灰岩夹层组合的整体性平面滑动破坏可能性存在。同时提出了对浸水后凝灰岩夹层特性进行研究及及时监控反馈分析的合理化建议。

Abstract

The engineering characteristic of left bank B2 debris of jinanqiao hydropower station is studied

especially for the distributing form and distributing characteristic of tuff interlayer.The stability and potential failure form of B2 debris caused by tuff interlayer are also discussed. The stability of B2 debris is analyzed by 2D finite element method and limit equilibrium balance method. The conclusion isdrawn that the safety factor of B2 debris along the bottom of B2 debris can fulfill the engineering reguirement.Furthermore

this paper suggests more study on the characteristic of immersion tuff interlayer and monitoring with feed back analysis in time

are suggested.

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