摘要
以云南澜沧铅矿凝灰岩为例,选取最具代表性的纯凝灰岩进行室内浸水崩解试验,以分析纯凝灰岩崩解过程中的颗粒级配变化情况。选取崩解物中粒径大于5.00 mm或小于0.28 mm的颗粒含量的变化为评价对象,通过对比分析探究其崩解性能、崩解率与时间、质量的关系。试验研究结果表明:相同质量的凝灰岩随着浸水时间的增加崩解率增大,相同时间下凝灰岩的崩解率随着质量的增大而增大。
Taking the tuff in Lancang Lead Mine in Yunnan as an example, pure tuff most typical therein is selected to carry out indoor water-disintegration test and then to analyze change of the particle size distribution in this process. The content change of the particle in respect of which the diameter is more than 5.00 mm or less than 0. 28 mm in the disintegrated rock is taken as the object of assessment, then through comparative analysis, relation between the performance and rate of the disintegration and the time and mass is explored. The experimental study result shows that tuff in same mass has increasing rate of disintegration as the increase of soaking time; and under same time, the rate of disintegration increases with the increase of tuff mass.
出处
《路基工程》
2013年第1期97-100,共4页
Subgrade Engineering
关键词
凝灰岩
浸水
崩解率
试验
tuff
soaking
rate of disintegration
test
