中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2011, Vol. 30 ›› Issue (S1): 642-646.DOI: 10.3969/j.issn.1674-0696.2011.supp1.032

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川藏公路田妥一怒江段某滑坡稳定性分析与整 制

申登科,陈洪凯   

  1. 重庆交通大学土木建筑学院,重庆40007
  • 收稿日期:2011-06-09 修回日期:2011-06-18 出版日期:2011-07-15 发布日期:2015-03-12
  • 作者简介:申登科(1983—),男,湖北随州人,工程师,硕士研究生,主要从事地质灾害治理、深基坑及岩、土质边坡设计工作。E-mail:sdk001002@163.com

Stability Analysis and Regulation of the Landslide in Tiantuo to Nujiang Section on Sichuan-Tibet Highway

SHEN Deng-ke,CHEN Hong·kai   

  1. School of Civil Engineering& Architecture,Chongqing Jiaotong University,Chongqing 400074,China
  • Received:2011-06-09 Revised:2011-06-18 Online:2011-07-15 Published:2015-03-12

摘要: 结合国道318线川藏公路田妥一怒江段K3668+700~K3668+790滑坡的基本状况,对滑坡的成因进行了分 析。对K3668+715断面建立了有限元分析模型,利用有限元强度折减法,计算分析了该段滑坡在重力场和地震作 用下的稳定性,计算分析求得该滑坡整治前在重力场和地震作用下的稳定安全系数分别为0.99和0.93,滑坡处于 不稳定的滑动状态,应及时对该段滑坡进行整治。提出了合理的整治方案并进行了安全性评价,结果表明整治后滑 坡的安全系数大于设计安全系。

关键词: 道路工程, 稳定性分析, 强度折减法, 滑坡, 有限元, 安全系数

Abstract: With a combination of basic conditions for the landslide in section froMTiantuo to Nujiang on Sichuan.Tibet State Road 3 1 8,that is K3668+700 ~K3668+790,the causes of the landslide have been analyzed.The finite element analysis model of the landslide in K3668 +7 15 section is established.The stability of the landslide in gravitational field and earth- quake has been analyzed by using the finite element strength reduction method.The calculation indicates that the safety CO- efficients of the landslide in gravitational field and earthquake respectively are 0.99 and 0.93 respectively before regulation. So the landslide is in an unstable state and the regulation project should be taken in time.Advisable regulation scheme of the landslide is put forward and the results shoWthat the stability safety coeficients are greater than the design ones after the regulation

Key words: road engineering, stability analysis, strength reduction method, landslide, finite element, safety coefi cient

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