【摘要】 岩溶是地下水地质作用的过程和结果,是隧道建设面临的不良地质现象之一,对隧道工程建设影响极大。采用物探与钻探相结合的勘察手段,查清了场地范围内的地层岩性及水文地质条件。通过对隧址地形地貌、地层岩性、地质构造、地表水系、地下水的补、径、排条件综合分析,查明了岩溶发育程度及其规律,分析了岩溶对隧道工程建设的影响,提出了应对措施。更多还原

【Abstract】 Karst is a process and result of groundwater geologic function and is one of bad geological phenomenon facing tunnel construction which has a great of influence on the construction of tunnel.The lithology and the hydrological conditions had been investigated by means of drilling and physical exploration.This paper has systemically study the namely distribution,sizes and filling of karst,the extent and rule of karst development based on the analysis of physiognomy and landform,the stratum lithology,geological structure,surface drainage,the supply and runoff and drainage of groundwater.It sums up the karst ecological environment of XangJang tunnel,analyses the construction adventure of karst to track,and put forward the corresponding keeping away steps.更多还原