Investigating the permeability of fractured rock masses and the origin of water in a mine tunnel in Shandong Province,China
作者单位：Key Laboratory of Shale Gas and Geoengineering Institute of Geology and GeophysicsChinese Academy of Sciences XI' an Research Institute of China Coal Technology & Engineering Group Corp.
会议名称：《中国科学院地质与地球物理研究所2015年度（第15届）学术年会》
会议日期：2016年
学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程]
关 键 词：fractured rock mass isotope ratio permeability tensor Sanshandao mine water seepage
摘 要：The coastal Sanshandao mine is threatened by the overlying Quaternary water and *** an introduction to the geology and hydrogeological conditions in the mine area,a detailed hydrogeological survey and sampling were conducted and hydrochemical and stable isotopic(δ H andδO)tests on various waters were carried out to characterize the origin of water in the mine *** and statistical analysis indicated that the northwest-trending fractures with large dip angles and long trace lengths are well developed in the northeast compared with those in the southwest of the *** permeability coefficients of the rock masses are in the range 4.19×10-2.25×10m/s,indicating that the fractured rock masses have generally low *** seepage water had higher values of EC,total dissolved solids,and concentrations of most elements than the seawater and saline ***,the isotope composition of the waters indicated that the seepage water was more isotopically enriched than seawater but less than *** proportions of the three different sources were calculated based on hydrochemical and isotopic ***,the mine water was composed of 72%seawater,14.8%brine,and 13.2%atmospheric precipitation,***,some preventive measures are essential to avoid the probability of seawater inrush.