软岩膨胀变形特性及释放规律研究  

Study on Swelling Deformation Properties and Release Rules of Soft Rocks

作　　者：明建[1] 

机构地区：[1]北京科技大学土木与环境工程学院

出　　处：《金属矿山》2013年第7期17-19,23,共4页Metal Mine

基　　金：中央高校基本科研业务费项目(编号:FRF-TP-12-017A)

摘　　要：针对鲁中矿业有限公司张家洼铁矿的矽卡岩和红板岩2类软岩,采用同等条件下干湿交替的循环试验方法,对其进行了膨胀变形特性和释放规律的试验研究。试验结果表明:该类岩石的膨胀性具有随循环次数的增加而逐渐释放并趋于一个定值的规律,所揭示的规律可为软岩工程支护提供理论依据。In view of skarn rocks and red slate rocks in Zhangjiawa Iron Mine of Minmetals Luzhong Mining Co.,Ltd.,experimental studies on swelling deformation and release rules of soft rocks are carried on by adopting the dry-wet circulation method under the equal conditions.Experiment results show that the rock＇s swelling releases gradually with the cycle number increasing,and finally tends to be a fixed value.The rules described above provide theoretical basis for the support of soft rocks.

关 键 词：岩石力学 软弱岩石 膨胀特性 膨胀变形释放 

分 类 号：TU452[建筑科学—岩土工程]