[1]王森,陈涛,翁运新.膨胀土边坡稳定性理论计算方法对比研究[J].高速铁路技术,2022,13(05):36-41,68.[doi:10.12098/j.issn.1674-8247.2022.05.008]
 WANG Sen,CHEN Tao,WENG Yunxin.Comparative Study on Theoretical Calculation Methods of Expansive Soil Slope Stability[J].HIGH SPEED RAILWAY TECHNOLOGY,2022,13(05):36-41,68.[doi:10.12098/j.issn.1674-8247.2022.05.008]
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膨胀土边坡稳定性理论计算方法对比研究()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
13卷
期数:
2022年05期
页码:
36-41,68
栏目:
理论探索
出版日期:
2022-10-01

文章信息/Info

Title:
Comparative Study on Theoretical Calculation Methods of Expansive Soil Slope Stability
文章编号:
1674-8247(2022)05-0036-06
作者:
王森1陈涛2翁运新3
(1. 中铁二院重庆勘察设计研究院有限责任公司, 重庆400023;2. 中铁城市发展投资集团有限公司, 成都 610000;) 3. 中铁二院工程集团有限责任公司, 成都 610031)
Author(s):
WANG Sen1CHEN Tao2WENG Yunxin3
(1. CREEC(Chongqing)Survey ,Design and Research Co. , Ltd. , Chongqing 400023 , China; 2. China Railway City Development and Investment Group Co. , Ltd. , Chengdu 610000 , China; 3. China Railway Eryuan Group Co. ,Ltd. ,Chengdu 610031, China)
关键词:
边坡稳定性 膨胀土 Fellenius 法 Bishop 法 Morgenstern-Price 法 Spencer 法
Keywords:
slope stabilityexpansive soilFellenius methodBishop methodMorgenstern-Price methodSpencer method
分类号:
U213.1+3
DOI:
10.12098/j.issn.1674-8247.2022.05.008
文献标志码:
A
摘要:
膨胀土边坡是工程实践中经常遇到的一种特殊土质边坡,该边坡的土质具有良好的亲水性,主要表 现为失水收缩、吸水膨胀的物理特性,这使得膨胀土边坡成为岩土工程界的热点研究课题。本文通过引入膨 胀力来对膨胀土边坡进行受力分析,总结了Fellenius 法、Bishop 法、Morgenstern-Price 法和Spencer 法4 种极 限平衡法的计算原理,并结合国内某实际工程案例对4 种方法分析讨论,对比在引入膨胀力前后边坡的安全 系数,搜索计算膨胀土边坡的最危险滑动面和稳定性系数K 值。研究结果表明:(1)采用Fellenius 法对边坡 的稳定性进行分析时边坡更偏于安全;(2)考虑膨胀力的作用对边坡的稳定性计算更加偏于安全;(3)边坡中 膨胀土的膨胀力越大,在其浅表层发生滑坡的几率越大。
Abstract:
Expansive soil slope is a special soil slope frequently encountered in engineering practice. The soil of this slope has good hydrophilicity,which is mainly reflected by its physical characteristics of expanding in the presence of water and shrinking in the condition of water loss. This makes expansive soil slope a hot research topic in geotechnical engineering. This paper provides the stress analysis of the expansive soil slope by introducing expansive force,summarizes the calculation principles of four limit equilibrium methods,namely Fellenius method,Bishop method,Morgenstern-Price method and Spencer method,analyzes and discusses the four methods by combining a practical project case in China,compares the safety factors of the slope before and after the introduction of expansive force,and searches and calculates the most dangerous sliding surface and stability coefficient K of the expansive soil slope. The results show that:(1)The slope is safer when Fellenius method is used to analyze the stability of the slope. (2)The slope stability calculated is safer when the effect of expansive force is taken into consideration.(3)The slope is more likely to experience landslide in its shallow surface layer if the expansive soil in the slope has a larger expansive force.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021 -04 -08
作者简介:王森(1988 -),男,工程师。
更新日期/Last Update: 2022-10-01