路堤荷载下软土侧向挤出沉降分析  

Analysis on Lateral Squeeze Settlement of Soft Clay Foundation under Embankment

作　　者：刘增贤[1] 汤连生[1] 

机构地区：[1]中山大学地球与环境科学学院,广州510275

出　　处：《工程勘察》2003年第2期1-4,共4页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金项目 (5 0 2 790 5 6 ;5 97790 19);广东省自然科学基金项目 (970 12 7)

摘　　要：路堤荷载下软土瞬时沉降并不是瞬时完成的 ,由此提出了侧向挤出沉降的概念以描述这种现象。侧向挤出沉降量可占总沉降量 1 4以上 ,目前通用的利用侧斜管测量侧向挤出量的方法是不适用的。本文根据实际资料 ,对侧向挤出进行了计算分析 ,结果表明侧向挤出沉降在软土总沉降中占有较大比例。The immediate settlement of soft soil under embankment doesn't finish instantaneously in practical engineering. The concepts of lateral squeezing and lateral squeezing settlement to describe the said phenomenon are expounded herein. The common used method for measuring lateral displacement by the oblique tube method is not suitable to determine the lateral settlement. Based on the observations along Guangzhou\|Zhuhai expressway, it is found that the value of lateral squeezing steelement is over the 1/4 of the total settlement. Finally, the main factors to affect the lateral squeezing are discussed.

关 键 词：路堤 荷载 软土 侧向挤出 沉降 

分 类 号：U416.12[交通运输工程—道路与铁道工程]