摘要
洪家渡水电站泄洪系统、引水发电洞及导流洞的进水口均位于左岸河湾大遍顺向坡一带,岩性为永宁镇组(T1yn1-5,T1yn1-4)灰岩,据前期勘测结果,软弱夹层较发育,对进水口边坡稳定影响较大。文章根据现场已开挖的施工洞室及永久洞室所揭露的夹层统计分布情况,对软弱夹层的性状、特征以及成因进行分析,为永久洞室进水口边坡稳定(包括施工与运行)提供处理依据。
The intakes of spillway system,headrace generation system and diversion tunnels are all located on a consequent slope area of the left bank of a river ancon,its rock property is limestone Yongningzhen Group(T_(1yn)^(1-5),T_(1yn)^(1-4)).According to survey results in early stage,weak interlayer relatively develop here,that would more heavily influence the stability of the intake slopes.In the light of statistics distribution situation of the interlayer that excavated construction and permanent tunnels and rooms had revealed,the article has analyzed the properties,characteristics and origin cause of formation of the weak interlayer,it offers a basis of dealing with the slope stability problem of permanent tunnels and rooms(including constructing and operating periods).
出处
《贵州水力发电》
2004年第2期32-34,共3页
Guizhou Water Power
关键词
洪家渡水电站
进水口
软弱夹层
工程地质学
导流洞
engineering geology,intake of permanent tunnel and room,weak interlayer,analysis of properties and characteristics,Hongjiadu Hydropower Station
