“引江济汉”工程膨胀土渠道边坡稳定性及防治对策

The Expansion Clay Bank of the Cannel for'Leading Water from Yangtze to Hanjiang River'and Relevant Prevention Measures

“引江济汉”工程是南水北调中线工程的补偿工程,推荐线—龙高Ⅰ线有70%的渠道经过膨胀土分布区,在渠道开挖和运行过程中,其边坡可能产生胀缩变形破坏,应采取护坡、放坡、沉箱、排水等工程措施解决。

The cannel＇leading water from Yangtze River to Hanjiang River＇ is a compensation project in middle section of the northward water transportation. The preferred Longgao-1 cannel goes through the expansion clay where the fiver bank may undergo deformation damage of expansion-contraction, unless some measures are applied such as slope maintenance, slope lowering, box-sinking and drainage system.