土工合成纤维土工程特性的试验研究  

TEST RESEARCH ON GEOTECHNIQUE TEXTILE SOIL ENGINEERING CHARACTERISTICS

作　　者：张艳美[1] 阮东华[1] 潘燕敏 张旭东[1] 吴婷婷 

机构地区：[1]中国石油大学(华东)储运与建筑工程学院,山东青岛266580

出　　处：《工业建筑》2014年第5期70-72,共3页Industrial Construction

基　　金：中央高校基本科研业务费专项资金资助项目(13CX06071A);大学生创新创业训练计划创新训练项目资助项目(20131175)

摘　　要：通过直剪试验和三轴压缩试验,探讨纤维长度、细度、韧度及纤维土配合比对纤维土抗剪强度和应力-应变关系的影响。结果表明:纤维的掺入对土体内摩擦角的影响较小,主要提高了土体的黏聚力;纤维土的应力-应变关系呈应变硬化的特点,不存在典型的黏着破坏和拉力破坏;纤维的长度、韧度和配合比对纤维土应力-应变关系和抗剪强度的影响显著,纤维细度的影响相对较小。Through direct shear test and the triaxial compression test , the influence of fiber length , fineness , toughness , and mixing ratio on the stress strain curve and shear strength of textile soil （ TEXSOL ） was discussed . The research showed that the influence of fiber incorporation on soil internal friction angle was small , and it mainly improved the soil cohesion;the stress-strain relationship of TEXSOL showed strain hardening characteristic , there was no typical adhesive failure and tensile failure;the influence of fiber length , toughness , and mixing ratio on the stress-strain curve and shear strength of TEXSOL was remarkable , and that of fiber fineness relatively small .

关 键 词：土工合成纤维土 配合比 应变硬化 三轴压缩试验 

分 类 号：U414[交通运输工程—道路与铁道工程]