摘要
我国有多种液塑限试验方法分别在不同的规范中使用。各规范液塑限试验方法的不统一,给岩土勘察和工程设计带来很多不便。在提出液塑限试验方法优越性评价标准的基础上,利用已有资料,对各种液塑限试验方法的优越性进行了探讨。结合国内外现状,考虑与国际接轨的要求,对新修订的《公路桥涵地基与基础设计规范》提出了采用76 g锥入土深度17 mm的方法测量液限和入土深度2 mm的方法测量塑限的意见。
There are many liquid-plastic testing methods functioning in different specifications in China. But due to their inconsistence, a lot of inconveniences are made in the process of soil exploration and projects design. On the basis of evaluation standards of the superiority of liquid-plastic testing methods, the various kinds of testing methods and their advantages are discussed using the available materials. Considering both the domestic and the international situation, a suggestion is put forward for the newly revised Specification for Design of Ground Base and Foundation of Highway Bridges and Culverts, that a 76 g cone penetrates the soil 17 mm in depth to measure the liquid limit and 2 mm in depth to measure the plastic limit.
出处
《公路》
北大核心
2007年第2期75-78,共4页
Highway
关键词
液限
塑限
试验方法
评价标准
liquid limit i plastic limit
testing methods
evaluation standards
