Deformation Monitoring and Stability Analysis of Excavation Slope

doi:10.3969/j.issn.1674-0696.2019.09.14

Journal of Chongqing Jiaotong University(Natural Science) ›› 2019, Vol. 38 ›› Issue (09): 81-87.DOI: 10.3969/j.issn.1674-0696.2019.09.14

• Port & Waterway · Hydraulic & Hydroelectric · Resources & Environment • Previous Articles Next Articles

Deformation Monitoring and Stability Analysis of Excavation Slope

SUN Yuan1, TIAN Weiqiang1, LING Dehong1, YANG Qingwen2, YANG Zheng3

(1. No. 2 Investigation Institute, Bureau of Geology and Mineral Exploration and Development Guizhou Province, Zunyi 563000, Guizhou, P. R. China; 2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, P. R. China; 3. College of Civil and Hydraulic Engineering, Xichang University, Xichang 615000, Sichuan, P. R. China)

Received:2018-01-11 Revised:2018-10-31 Online:2019-09-18 Published:2019-09-18

开挖边坡变形监测及稳定性分析

孙元1，田维强1，林德洪1，杨晴雯2，杨峥3

(1. 贵州省地质矿产勘察开发局第二工程勘察院，贵州遵义 563000； 2. 成都理工大学地质灾害防治与地质环境保护国家重点实验室，四川成都 610059； 3. 西昌学院土木与水利工程学院，四川西昌 615000)

作者简介:孙元(1983—)，男，内蒙古多伦人，高级工程师，主要从事地址灾害防治方面的工作。E-mail：270730310@qq.com。
基金资助:
贵州省地矿局青年科研项目〔黔地矿科合(2015)13号〕

Abstract

Abstract: Deformation monitoring is an effective method for testing the effect of a retaining slope and forecasting its deforming trend. A protected excavation slope in Guizhou was selected as a sample for a detailed exploration about slope structure. The dates of displacement and underground water level of slope from June 2015 to June 2017 were collected and analyzed. The results indicate that the slope deformation was great after the support began (from June to August 2015) and the rate decreased over time, which means that the slopes strike, rock stratums dip and overburdens thickness had deformed it in addition to the rainfall affecting the underground water level, and that the deformation gradually converged after October 2016, which means that the slope was reaching a stable state.

Key words: geotechnical engineering, excavation slope, retaining and protecting structure, monitoring, deformation, underground water

摘要： 对支挡边坡的变形监测是检验支挡结构效果和预测边坡变形趋势的有效手段。以贵州某城区开挖支护边坡为例，在对坡体结构详细勘探基础上，分析2015年6月—2017年6月位移和地下水位监测数据。结果表明：①边坡支档初期(2015年6月—8月)变形较为显著，变形速率随着时间增加而减小；②边坡走向、岩层倾向、覆盖层厚度影响边坡变形特征；③研究区地下水位明显受大气降雨影响，地下水位在边坡支护初期对边坡变形大小有显著影响；④2016年10月后边坡变形逐渐收敛，表明支护边坡处于稳定状态。

关键词: 岩土工程, 开挖边坡, 支护结构, 监测, 变形, 地下水

CLC Number:

SUN Yuan1, TIAN Weiqiang1, LING Dehong1, YANG Qingwen2, YANG Zheng3. Deformation Monitoring and Stability Analysis of Excavation Slope[J]. Journal of Chongqing Jiaotong University(Natural Science), 2019, 38(09): 81-87.

孙元1，田维强1，林德洪1，杨晴雯2，杨峥3. 开挖边坡变形监测及稳定性分析[J]. 重庆交通大学学报（自然科学版）, 2019, 38(09): 81-87.

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Deformation Monitoring and Stability Analysis of Excavation Slope

开挖边坡变形监测及稳定性分析

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