淤背固堤后黄河堤防的防渗方案设计研究  

Study on Water-Tight Plans for the Yellow River Embankments after Warping Consolidation

作　　者：荆旭春[1] 王俊[1] 张效青[2] 

机构地区：[1]黄河水利职业技术学院,河南开封475001 [2]河南黄河水电工程建设有限公司,河南郑州450003

出　　处：《人民黄河》2006年第2期18-19,共2页Yellow River

摘　　要：对连续截渗墙、土工膜、减压沟(井)等防渗方案进行了比较,指出防渗方案的选择主要取决于黄河堤防堤基的地层结构。对于不同的地层形式,在堤防防渗措施上有明显的不同:①对于堤基透水性土层厚度不大(10 m左右)的情况,采用心墙防渗是有效和可靠的;②对于透水性土层比较深的地基,心墙达不到不透水土层,故只能形成“悬挂式”的防渗结构,但当防渗墙进入地层的深度小于地层总厚度的80%时,应采用土工膜斜墙加铺盖或者其他防渗结构。The paper compares waterproof plans of continuous cutoff wall,geomembrane and relief gully(well) and points out that the selection of waterproof plans are mainly depend on strata structure of the dyke foundation of the Yellow River.The different stratum of embankments has different measures of water tight: a) it is efficient and reliable to use core for anti seepage under the conditions when the thickness of pervious soil of dyke foundation is about 10 m and b) when the pervious soil is rather deep and the core is unable to reach the water-tight stratum,it only can form 'suspended' waterproof structure,when the depth of cutoff wall into the stratum is less than 80% of the total thickness of the stratum,it should adopt geomembrane inclined wall plus blanket or other waterproof structures.

关 键 词：渗透破坏 双层地基 浸润线 防渗措施 黄河堤防 

分 类 号：TV871[水利工程—水利水电工程] TV882.1