论文部分内容阅读
含水量、干密度是影响膨胀土胀缩特性非常重要的指标。在南水北调中线总干渠的南阳段普遍遇到了膨胀土深挖路堑、渠道边坡稳定、地基处理等问题。为了解决该问题,给现场施工提供一定的理论依据与技术支持,文章通过控制膨胀土的含水量和干密度,进行了膨胀力、膨胀率等膨胀特性试验研究,分析了含水率和干密度对膨胀土膨胀特性的影响,对试验结果进行了比较与分析,得出了含水量和干密度对膨胀土的影响关系。
Water content and dry density are very important indicators that affect the swelling and shrinking characteristics of expansive soil. In the Nanyang section of the main canal of the Middle Route of South-to-North Water Diversion, problems such as deep digging of expansive soil, stable slope of channel, and foundation treatment are all encountered. In order to solve this problem, some theoretical basis and technical support are provided for on-site construction. By controlling the moisture content and dry density of expansive soil, the expansion characteristics such as expansion force and expansion rate are studied. The effects of moisture content and dry density Expansive soil swelling characteristics of the experimental results were compared and analyzed, obtained the moisture content and dry density on the impact of expansive soil.