摘要
针对燕山水库弱膨胀黏土质砂砾岩能否作为坝体填料这一问题,从矿物组成、颗粒级配、膨胀性、压实性、渗透性、强度等方面对其工程特性进行了研究。结果表明,黏土质砂砾岩易压实,具有较高的强度和较低的压缩性,作为坝体填料是可行的,考虑到其干湿交替强度大幅度衰减的特性,应填筑于浸润线以上部分,并对坝坡坡面进行保护。
The paper carried out research on characteristics of grit with weak expanded clay from mineral composition, grain gradation, dilatability, compaction, permeability and strength. The results showed the grit with weak expanded clay was of easy compaction, higher strength and low compressibility, and was suitable for filling material above saturation line.
出处
《南水北调与水利科技》
CAS
CSCD
2008年第4期96-98,共3页
South-to-North Water Transfers and Water Science & Technology
关键词
黏土质砂砾岩
膨胀性
压实性
抗剪强度
grit with weak expanded day dilatability
compaction shear strength
