三峡大学学报（自然科学版）2018，Vol.40Issue(4)：52-55,4.DOI:10.13393/j.cnki.issn.1672-948X.2018.04.011
不同载荷水平砂岩吸水特性实验研究
Experimental Study of Absorption Characteristic of Sandstone Under Different Load Level
摘要
Abstract
In view of the case that absorption characteristic of slope rock mass after damage was changed which leads to lower stability;taking the typical sandstone in the Three Gorges Reservoir area as the research object,the water absorption test of the sandstone is carried out under the different load levels.The results show that,with the increasing of time,the rise rate of water level of sandstone gradually decreased,and finally became stable.With the increasing of load level,the water absorption rate of sandstone decreased first and then increased.After the cracks appeared,the absorption capacity of rock sample improved greatly and water level height raised rapidly in a very short period of time.The water elevation of water absorption curve appeared the local maximum region.And the local maximum region is near the main cracks;but the distribution of the water elevation of water absorption curve at more small cracks is scattered.The research results reveal that it can forecast the internal structure change of rock mass according to the apparent absorption curve features.关键词
砂岩/载荷水平/吸水曲线/吸水率Key words
sandstone/load level/water absorption curve/water absorption rate分类
建筑与水利引用本文复制引用
赵二平,贾小兵,龚章龙..不同载荷水平砂岩吸水特性实验研究[J].三峡大学学报（自然科学版）,2018,40(4):52-55,4.基金项目
三峡库区地质灾害教育部重点实验室(三峡大学)开放研究基金项目(2015KDZ02) （三峡大学）
湖北省自然科学基金(2015CFC1139) （2015CFC1139）
