人民长江2015，Vol.46Issue(18)：75-79,5.DOI:10.16232/j.cnki.1001-4179.2015.18.019
散粒土渗透破坏判别方法试验研究
Experimental study on seepage failure discrimination method of granular soil
摘要
Abstract
Seepage failure is one of the most important causes of stable-lossing failure of geotechnical projects such as earth-rock dam, embankment and foundation pit. Many achievements have been obtained in the study of seepage failure discrimination method of granular soil at present, but there is no clear division to the adaptability and application scope of these different dis-crimination methods. Based on a self-developed seepage experiment instrument, a series of granular soil seepage failure tests were carried out. In the test, the influences of dry density, fine grain content, fine grain composition on granular soil seepage failure are studied, and the variation laws of seepage velocity, critical hydraulic gradient, permeability coefficient in the seepage failure process are revealed. The test data are compared with the results of the existed discrimination methods, and the applica-tion scope as well as the pros and cons of these methods are made clear.关键词
散粒土/渗透破坏/判别方法/临界水力梯度Key words
granular soil/seepage failure/distinguishing method/critical hydraulic gradient分类
天文与地球科学引用本文复制引用
梁越,曾超,储昊,张强..散粒土渗透破坏判别方法试验研究[J].人民长江,2015,46(18):75-79,5.基金项目
国家自然科学基金(51349007,51409029) （51349007,51409029）
