片岩力学参数试验及应用研究  

Mechanical Parameter Test and Application Research of Schist

作　　者：龚维群 董常文 周明月 张永全 GONG Wei-qun;DONG Chang-wen;ZHOU Ming-yue;ZHANG Yong-quan(Power China Kunming Engineering Corporation Limited,Kunming 650051,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051

出　　处：《云南水力发电》2022年第11期36-40,共5页Yunnan Water Power

摘　　要：片岩有片理构造,由片状、柱状和粒状矿物组成,是常见的区域变质岩石。某工程区开挖料岩性主要为软弱的片岩,为充分利用开挖料作为当地材料坝筑坝材料,对片岩开挖料进行原岩物理力学性、压缩性、三轴压缩及渗透性等工程力学特性进行试验研究,表明该片岩为较软岩,浸水前后其物理力学性能有一定差异,在进行坝料设计、坝体分区及坝料优选时,选择置于干燥区及次堆石区。Schists are schistose,consisting of schistose,cylindrical and granular minerals,and are common regional metamorphic rocks.The lithology of excavated material in a project area is mainly weak schist.In order to make full use of excavation material as local material for dam construction,this paper carries out experimental research on physical and mechanical properties of raw rock,compressibility,triaxial compression and permeability of schist excavation material.The results show that schist is soft rock and its physical and mechanical properties are different before and after immersion.Therefore,the dry zone and sub-rockfill zone are selected for dam material design,dam body zoning and dam material optimization.

关 键 词：堆石坝 片岩 工程力学特性 试验研究 坝体分区 

分 类 号：TU458.3[建筑科学—岩土工程]