Study on setting of slope displacement monitoring points by numerical calculation

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Civil Engineering and Technology June 2013, Volume 2, Issue 2, PP.19-24

Study on Setting of Slope Displacement Monitoring Points by Numerical Calculation Xianguo Deng 1##, Lin Zhu 2, Jie Cheng 1 1. Si Chuan Shu Gong Expressway Engineering Co. Ltd, Chengdu Sichuan 610041, China 2. Construction Project Quality and Safety Supervision Station of YiBin, Yibin Sichuan 644000, China #

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Abstract Slope displacement monitoring can visually reflect the slope deformation, and reasonable setting of monitoring points is the premise for good monitoring results. At present, the slope displacement monitoring site mostly rely on the experience and the engineering analogous method, which are lack of quantitative analysis. According to the finite difference strength reduction method, get the displacement of distributed monitoring point with the changing of strength reduction coefficient, analyse the rule between the displacement of distributed monitoring point and reduction coefficient, and obtain the grey pertinence between them. Give the idea that optimizing the monitoring points based on gray correlation degree and actual condition. Keywords: The Slope Engineering; Displacement Monitoring; Displacement Monitoring Stations Layout; Strength Reduction Method; Grey Correlation Analysis

基于数值计算的边坡位移监测点优化布设方法研究 邓贤国 1,祝林 2,成杰 1 1.四川蜀工高速公路机械化工程有限公司,四川 成都 610041 2.宜宾市建设工程质量安全监督站,四川 宜宾 644000 摘

要:边坡位移监测能够直观的反映边坡的变形情况,而监测点的合理布设是取得良好监测效果的前提。目前,边坡

位移监测点位的布设大多依靠经验以及工程类比方法,缺乏定量的分析。根据有限差分强度折减法,得到拟布监测点随 强度折减系数变化而变化的位移情况,分析拟布点位移与折减系数的变化规律,得到二者的灰色关联度,提出了根据灰 色关联度大小并结合实际工况优化布设监测点的方法,可以为边坡位移监测点优化布设提供理论指导。 关键词:边坡;位移监测;强度折减法;灰色关联度

1 前言 边坡失效会给人们的生命财产带来巨大的损失。为了防止边坡失效给人类带来灾害,需要对边坡进行稳 定性评价,以便及时采取相应的工程措施。边坡位移监测能够准确直接的反映边坡的变形情况,对边坡变形 作出预测和预报,因此边坡的位移监测是边坡稳定性评价中极其重要的一个方法。位移监测点的合理布设是 能否取得良好监测效果的保证。杨志法将系统科学与工程地质力学结合起来,并将该方法运用到五强溪电站 左岸边坡开挖的位移监测当中,为监测点位的布设提供了指导,使监测工作取得了良好的效果[1]。罗先启、 张振华提出了将经验分析与数值模拟计算相结合,综合确定变形监测测点位置的思想[2]。该思想将工程经验 和数值计算相结合,二者之间取长补短对监测点的优化布设有着积极的意义,但是数值计算中监测点位的选 #

CITATION: Xianguo Deng, Lin Zhu, Jie Cheng. Study on Setting of Slope Displacement Monitoring Points by Numerical Calculation [J]. Ivy Publisher: Civil Engineering and Technology, June 2013, Volume 2, Issue 2, PP.19-24 引用格式:邓贤国, 祝林, 成杰. 基于数值计算的边坡位移监测点优化布设方法研究[J]. Ivy Publisher: 土木工程与技术, 2013, 2(2): 19-24 - 19 http://www.ivypub.org/cet


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