高水位骤降作用下堤防边坡稳定性研究

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英文篇名：Study on the stability of embankment slope under condition of rapid drawdown of high water level 作者：张家阳 ; 王远明 ; 苏安双 ; 徐丽丽 ; 王理想 英文作者：ZHANG Jiayang;WANG Yuanming;SU Anshuang;XU Lili;WANG Lixing;Heilongjiang Province Hydraulic Research Institute;Sanjiang Engineering Bureau of Heilongjiang Province; 关键词：砂土堤防 ; 边坡工程 ; 水位骤降 ; 稳定性 英文关键词：sand embankment;;slope engineering;;rapid drawdown of high water level;;embankment stability 中文刊名：SLTD 英文刊名：Hydro Science and Cold Zone Engineering 机构：黑龙江省水利科学研究院;黑龙江省三江工程建设管理局; 出版日期：2018-09-30 出版单位：水利科学与寒区工程 年：2018 期：v.1 基金：黑龙江省黑龙江干流堤防工程科学研究试验项目(HGZL/KY-04);; 黑龙江省应用技术研究与开发技术引导项目(GZ16B016) 语种：中文; 页：SLTD201809004 页数：6 CN：09 ISSN：23-1605/TV 分类号：16-21

摘要

高水位骤降时堤防易产生非稳定渗流,导致堤防边坡不稳定。本文通过开展堤防边坡稳定性物理模型试验,利用水位控制系统实现坡外水位的骤降,测试水位骤降过程中孔隙水压力、坡面地形变化,结合渗流稳定数值分析对堤防边坡稳定性进行研究。结果表明:水位骤降时,堤防边坡稳定性系数逐渐减小,堤防内部产生向坡外的渗流是边坡失稳的重要原因。
        Embankment is easy to produce unsteady seepage,leading to unstable embankment slope under condition of Rapid Drawdown of high water level.In this paper,the physical model test of slope stability is carried out,Using the water level control system to realize the rapid drawdown of high water level,the model tests the changes of pore water pressure and slope topography.Based on the numerical analysis results of seepage stability,the stability of embankment slope is analyzed.the results show that the seepage flow to the outside of the slope occurs in the embankment and the stability coefficient of embankment slope decreases gradually under condition of Rapid Drawdown of high water level,which is an important reason for the instability of the slope.

引文

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