水利水电科技进展Issue(1)：29-36,66,9.DOI:10.3880/j.issn.10067647.2015.01.005
高堆石坝面膜防渗体非散粒体垫层工程特性试验--高面膜堆石坝关键技术（五）
Experimental research on engineering property of non-granular cushion for high membrane faced rockfill dam:key technology of high membrane faced rockfill dam (V)
摘要
Abstract
For the high rockfill dam built on the foundation of large overburden depth, the traditional cushion materials cannot maintain the stability of geomembrane surface barrier and satisfy the requirement of adaptability to dam deformation. Laboratory experiments such as: permeability test, compressive strength test, flexural property test, interface direct test, and structural model test were carried to evaluate the permeability, basic mechanical property, interface strength, and adaptability to deformation of new porous cushion material ( polymer permeable concrete) . Additionally, comparative tests and analysis of traditional cushion material-non-fine concrete-were also conducted. The test results show that polymer permeable concrete not only has high mechanical strength and water permeability, but also has lower elasticity modulus and obvious toughness. It is indicated that polymer permeable concrete has stronger adaptability to flexural deformation compared to non-fine concrete. It is concluded that the polymer permeable concrete is a better alternative to the traditional cushion material of geomembrane surface barrier for high rockfill dam built on thick foundation.关键词
堆石坝/面膜防渗体/垫层/无砂混凝土/聚合物透水混凝土/工程特性Key words
rockfill dam/geomembrane surface barrier/cushion/non-fine concrete/permeable polymer concrete/engineering property分类
建筑与水利引用本文复制引用
吴海民,束一鸣,滕兆明,戴林军,蒋善平..高堆石坝面膜防渗体非散粒体垫层工程特性试验--高面膜堆石坝关键技术（五）[J].水利水电科技进展,2015,(1):29-36,66,9.基金项目
国家自然科学基金(51079047,51379069) （51079047,51379069）
国家“十二五“科技支撑计划(2012BAB03B02) （2012BAB03B02）
