秦岭南麓岩溶发育地质特征及工程处理对策

通过西康一、二线的地质勘察对发育于秦岭南部腹地的石炭系、泥盆系和寒武-奥陶系的海相沉积的巨厚层的碳酸盐岩建造中存在的岩溶现象的地质特征进行了论述,并结合既有工程修建所揭露的岩溶的发育程度及形态对秦岭南部腹地发育的岩溶初步划分了垂直渗流岩溶带、水平潜流岩溶带。在此基础上提出了对于不同的岩溶类型和部位采取不同的工程处理措施。

Karst Development Geological Characteristics in South Piedmont of Qinling Mountain and the Construction Measures

Based on the geological exploration in the first and second railways of Xi＇ an to Ankang, the paper discussed the geological characteristics of karst phenomenon in the construction in the marine deposit extremely thick carbonate rock layer of carboniferous, Devonian and cambrian-ordovician, which developed in the hinterland of southern Qinling. According to the karst development degree and configuration revealed in the existing engineering construction, the karst was divided into vertical seepage karst zone and undersurface flow karst zone ; and on this basis, it was put forward that different construction measures was applied for each karst type and part.