南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2009年
6期
54-58,129
,共6页
刘斯宏%白福青%汪易森%吴健
劉斯宏%白福青%汪易森%吳健
류사굉%백복청%왕역삼%오건
膨胀土%土工袋%浸水变形试验%膨胀力试验
膨脹土%土工袋%浸水變形試驗%膨脹力試驗
팽창토%토공대%침수변형시험%팽창력시험
expansive soil%soilbag%wetting deformation experiment%swelling force experiment
膨胀土具有强胀缩性、多裂隙性和超固结性,是工程上一种难以处理的"麻烦土"或"不老实土".笔者近年提出了将这种"不老实土"约束在土工袋中的处理方法,并通过大量的室内、现场试验研究,验证了该处理方法的有效性.现概述了膨胀土的基本特性和膨胀土的处理原则,着重介绍了土工袋处理膨胀土的基本原理.通过土工袋浸水变形和膨胀力等室内试验分析,验证了土工袋具有提高膨胀土的强度和限制其膨胀变形等作用特点.
膨脹土具有彊脹縮性、多裂隙性和超固結性,是工程上一種難以處理的"痳煩土"或"不老實土".筆者近年提齣瞭將這種"不老實土"約束在土工袋中的處理方法,併通過大量的室內、現場試驗研究,驗證瞭該處理方法的有效性.現概述瞭膨脹土的基本特性和膨脹土的處理原則,著重介紹瞭土工袋處理膨脹土的基本原理.通過土工袋浸水變形和膨脹力等室內試驗分析,驗證瞭土工袋具有提高膨脹土的彊度和限製其膨脹變形等作用特點.
팽창토구유강창축성、다렬극성화초고결성,시공정상일충난이처리적"마번토"혹"불로실토".필자근년제출료장저충"불로실토"약속재토공대중적처리방법,병통과대량적실내、현장시험연구,험증료해처리방법적유효성.현개술료팽창토적기본특성화팽창토적처리원칙,착중개소료토공대처리팽창토적기본원리.통과토공대침수변형화팽창력등실내시험분석,험증료토공대구유제고팽창토적강도화한제기팽창변형등작용특점.
Expansive soil is a kind of "trouble" soil which is not easy to be treated in engineering, as it has the characteristics of strong swell-shrink,developing fissures and over consolidation. A method of reinforcing expansive soil with soilbags had been proposed and verified the availa-bility by laboratory and field tests. This paper summarized the basic characteristics and the treatment principle of expansive soil and introduced the principle of reinforcing expansive soil with soilbags. The wetting deformation and swelling force experiments were carried out on soilhags filled with expensive soil,verified the effectiveness of soilhags to enhance the strength and restrict the swelling deformation of expansive soil.
