降雨及库水作用对滑坡影响规律试验系统研究  

Test System for Landslide Caused by Rainfall and Reservoir Water Fluctuation

作　　者：占清华[1] 王世梅[1] 谈云志[1] 赵代鹏[2] 

机构地区：[1]三峡大学土木与建筑学院,湖北宜昌443002 [2]长江科学院长澳大地工程有限公司,武汉430010

出　　处：《长江科学院院报》2013年第11期32-38,共7页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金重点项目(50839004);三峡大学三峡库区三期地质灾害防治重大科学研究项目(SXKY3-2-1);三峡大学优秀硕士学位论文培优基金(2013PY018);三峡大学土木与建筑学院优秀硕士论文培优基金(PY201306)

摘　　要：降雨与库水作用是滑坡地质灾害发生的重要影响因素,为了对降雨及库水作用对滑坡渗流及稳定性影响规律进行探索研究,特自主研究构建了小型滑坡模型试验系统平台,该系统主要由人工降雨系统、模型试验框架、试验数据采集系统、非接触式位移测量系统及各物理量量测传感器构成。并以孙家庄滑坡为例,运用相似理论建立相似比为1∶200的滑坡物理模型,采用人工降雨系统进行不同强度降雨试验,提供了可行的操作平台。研究了不同降雨强度下滑坡体内渗流变化规律。Rainfall and reservoir water are important factors causing landslides.In order to study the regularity of rainfall and reservoir water affecting the seepage and stability of slope,we developed and built a small system platform for landslide model test.The system is mainly composed of artificial rainfall subsystem,model test framework,test data acquisition subsystem,non-contact displacement measurement subsystem and physical measurement sensors.Taking the landslide at Sunjiazhuang as an example,we established a landslide physical model with similar ratio of 1∶ 200,and carried out rainfall intensity tests through artificial rainfall system.The regularity of seepage variation in landslide body under different rainfall intensities were obtained,which proved the feasibility of this system.

关 键 词：滑坡 地质灾害 模型试验系统 降雨试验 渗流规律 

分 类 号：P642.22[天文地球—工程地质学]