引江济汉工程膨胀土处理研究与实践

Study and practice of engineering treatment of expansive soil for Project of Water Diversion from Yangtze River to Hanjiang River

在大量试验研究的基础上,建立了适合工程区域地质特点的膨胀土判别与分类方法。借鉴其他工程成果,按照样本数量1/3的方法划分渠道膨胀土的膨胀潜势等级。针对不同类型渠段,制定了相应的工程处理措施,对工程后续设计与施工具有重要的指导作用,取得了良好经济效益与社会效益。

Based on large amounts of exprimental studies,a method for identifying and classifying the expansive soils adapted to the regional geological characteristics is established. With the reference made on the achievements from the other relevant projects,the expansive potentials of the channel expansive soils are classified in accordance with the method that the classification is made with the 1 /3 of the number of the samples. For various types of the channel sections,the corresponding engineering treatment measures are made; which has an important guiding role for the successive design and construction,while a better economic and social benefit is got as well.