特殊岩土渠坡排水方案计算分析及实施  

Drainage Program Design and Implementation of the Special Geotechnical Channel Slope

作　　者：张世宝[1] 王帅杰[1] 郭建邦 郭艳利[1] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]中国水利水电第二工程局有限公司,北京100120

出　　处：《人民黄河》2012年第12期146-148,共3页Yellow River

摘　　要：在膨胀岩渠坡采用换填黏性土方案处理的基础上,对其排水方案进行了计算分析,得出不同边界条件下的相关渗流分析结果。依据对成果的分析,提出了预测地下水水位或施工期地下水水位低于渠底的渠段、预测地下水水位或施工期地下水水位高于渠底3 m以内和高于渠底3 m以上渠段渠坡排水的处理措施。所采取的排水系统相对独立,根据地下水水位及膨胀岩渠段所处位置的不同,采取了不同形式的排水布置,并对坡顶截流沟进行防渗处理。On the basis of taking cohesive soil as replacement to deal with expansive rock in channel slope, it analyzed and calculated its drainage program and obtained seepage analysis results under different boundary conditions. Based on the analysis of the results, it proposed the measures to deal with the drainage of channel slope, including prediction of groundwater table or the channel sections in construction period where the groundw- ater level was below the channel bottom, prediction of groundwater table or the groundwater level in construction period less than 3 m and more than 3 m higher above the channel bottom. The drainage system which had been treated was relatively independent, according to the different location of the groundwater level and the channel section with expansive rock, arrange different draining form, and deal with the seepage of ditch for intercep- ting water on the top of the hill.

关 键 词：膨胀岩 渠坡 渗流 排水 南水北调中线工程 

分 类 号：TV222.2[水利工程—水工结构工程]