特殊土基对渠道防渗工程的危害及其防治措施

Harmness to Seepage Control Works of Canal by Special Soil Foundation and Measures to Its Prevention and Control

我国 (尤其是西部地区 )广泛分布着特殊土 (盐渍土、膨胀土及湿陷性黄土 ) ,对渠道防渗工程建设带来严重的危害。因此 ,笔者为了与同行们就解决此问题进行讨论 ,特就特殊土的分布概况、主要性能特点及对渠道防渗工程的危害作了简介后 ,着重对防治措施提出了一些看法 ,供交流与讨论。

Special soils (salty soil, expansive soil and collapsible loess), extensively distributed in our country (especially in west zone), have done haim to seepage control works of canal. In this paper, the distributing condition, Principal properties and characteristics, and harmness to canal seepage control works of special soils are introduced simply and the measures to its prevention and control are put forward for exchange and discussion.