摘要
通过对南水北调中线大宁河补水工程线路地面地质调查,初步评价了西线剪刀峡(檀木-茅草坡)方案工程地质条件,认为一级泵站大昌八角丘场址工程地质条件优越,剪刀峡水库库尾二级取水泵站檀木场址较神基坪场址工程地质条件适宜。自大昌八角丘至剪刀峡隧址区地表岩溶发育,岩溶涌水、涌泥、局部高地应力是该隧洞段关键性工程地质问题。檀木至茅草坡深埋长隧洞存在高地应力至软岩流变、长隧洞局部高压涌水、局部岩溶涌水、沿河断裂接触性岩溶涌水等工程地质问题。
Through the geological survey of route scheme of diverting Daning River to Han in the South -North water transfer project, this paper primary research to the engineering geological conditions of the west route scheme （ The Jiandaoxia - - Maocaopo line） in the project. It consider that the first level pump station located in Bajiaoqiu of Dachang is favourable engineering geological condition. The second level pump station has two choice with Tanmu is better than Shenjiping as our work. Consists of two level pump - station, two long tunnels and related reservoirs, which is the west route scheme of diverting Daning River to Han in the South - North water transfer project. Tunnel from Bajiaoqiu to Jiandao George Reservoir will commit the key engineering geological problem such as surface karst, karst water surge, mud rush and partly high pressure, which has much to do with karst within this tunnel. While the Tanmu - Maocaopo deeply - burying tunnel has high stress, soft rock deformation and rheology, long tunnel water surge because of karst partly and high pressure or fault near fiver and some other engineering geological problem.
出处
《华南地质与矿产》
CAS
2007年第1期65-73,共9页
Geology and Mineral Resources of South China
基金
中国地质调查局大宁河流域环境工程地质调查评价(200412300003)
关键词
补水工程
深埋长隧洞
岩溶
剪刀峡水库
大宁河
Diverting Daning River to Han project
tunnel
karst
Jiandao George reservoir
Daning River
