#trs_autoadd_1217300402484 { margin-top: 0px; font-size: 12pt; margin-bottom: 0px; line-height: 1.5; font-family: 宋体 } #trs_autoadd_1217300402484 p { margin-top: 0px; font-size: 12pt; margin-bottom: 0px; line-height: 1.5; font-family: 宋体 } #trs_autoadd_1217300402484 td { margin-top: 0px; font-size: 12pt; margin-bottom: 0px; line-height: 1.5; font-family: 宋体 } #trs_autoadd_1217300402484 div { margin-top: 0px; font-size: 12pt; margin-bottom: 0px; line-height: 1.5; font-family: 宋体 } #trs_autoadd_1217300402484 li { margin-top: 0px; font-size: 12pt; margin-bottom: 0px; line-height: 1.5; font-family: 宋体 } /**---json-- {"":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"p":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"td":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"div":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"},"li":{"line-height":"1.5","font-family":"宋体","font-size":"12pt","margin-top":"0","margin-bottom":"0"}} --**/ 摘要：简要回顾了非饱和土力学的研究历史及研究意义。结合南水北调中线工程中的膨胀土问题，探讨了非饱和土理论在渠道工程设计中的应用前景，重点论述了非饱和土抗剪强度理论及其简化计算方法，并从膨胀土的破坏机理、变形特点和强度特征出发，探讨了膨胀土渠坡工程处理措施和处理原则，为南水北调中线工程膨胀土渠段的设计和施工开拓了新的思路。

关键词：非饱和土；膨胀土；南水北调

中图分类号：tv68；tu4 文献标识码：a 文章编号：1672-1683（2008）01-0143-05

mechanics for unsaturated soils and its application in the south-to-north water transfer project

gong bi-wei,li qing-yun,wen song-lin

(key lab of geotechnical mechanics and engineering of the ministry of water resources,yangtze river scientific research institute,wuhan