某水电站风化岩体作为堆石坝料可行性分析  

Feasibility Analysis on Weathered Rock of a Hydropower as Rock-Fill Dam Materials

作　　者：魏伟[1] 沈军辉[1] 苗朝[1] 刘海[1,2] 李刚[1,3] 聂德新[1] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059 [2]安徽省公益性地质调查管理中心,安徽合肥230001 [3]成都理工大学科技咨询部,四川成都610059

出　　处：《人民黄河》2012年第7期127-129,共3页Yellow River

摘　　要：通过对某水电站坝址区平硐开挖所产生的弱风化沙板岩料和微风化沙板岩料进行现场碾压试验和压缩试验,研究其作为面板堆石坝堆石料的可行性,结果表明:弱风化沙板岩碾压料最大干密度为2.41 g/cm3,微风化沙板岩碾压料最大干密度为2.43 g/cm3;微风化沙板岩料的抗压缩性能大于弱风化沙板岩料;在相同碾压功率下,微风化沙板岩料变形模量大于弱风化沙板岩料。边坡开挖的弱风化沙板岩堆石料和微风化沙板岩堆石料可以应用于混凝土面板堆石坝的主、次堆石区。By the weak weathered sand slate material and slightly weathered sand slate material of adit excavation of a hydropower station dam being conducted on field compacting test and laboratory compressing test,the feasibility study which was determined as faced rock-fill dam shows that： the weak weathered sand slate material maximum dry density is 2.41 g/cm3,the slightly weathered sand slate material maximum dry density is 2.43 g/cm3;the anti-compression properties of slightly weathered sand slate material are better than the weak weathered sand slate material;under the same compaction power,the deformation modulus of slightly weathered sand slate material is higher than the weak weathered sand slate material.The weak and slightly weathered sand slate material of slope excavation can meet the specification requirements and can be well used in the main rock-fill zone and secondary rock-fill zone of faced rock-fill dam.

关 键 词：碾压试验 压缩试验 堆石料 面板堆石坝 

分 类 号：TV641.4[水利工程—水利水电工程]