基于声呐渗流法的岩溶区水文地质参数测定应用研究  

Application of sonar seepage method in determining hydrogeological parameters in karst areas

作　　者：周天忠 宋川云 詹龙飞 林杭[3] 胡盛斌[3] Zhou Tianzhong;Song Chuanyun;Zhan Longfei;Lin Hang;Hu Shengbin(Nanning Rail Transit Co.,Ltd.,Nanning 530029,China;China Railway Liuyuan Group Co.,Ltd.,Tianjin 300308,China;School of Resources and Safety Engineering,Central South University,Changsha 410083,China)

机构地区：[1]南宁轨道交通集团有限责任公司,南宁530029 [2]中铁第六勘察设计院集团有限公司,天津300308 [3]中南大学资源与安全工程学院,长沙410083

出　　处：《工程勘察》2023年第11期36-41,共6页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金面上项目(51774322);湖南省水利科技项目重大项目(XSKJ2019081-10).

摘　　要：为解决目前水文地质勘察手段及方法难以定量测定岩溶区水文地质参数的难题,采用声呐渗流法原位定量测定含水层水文地质参数,以南宁市轨道交通4号线工程岩溶专项勘察为案例,结合抽水试验、地质钻探、综合物探等技术方法,利用现有的抽水井、水位观测孔或预埋的声呐检测管进行现场测试,矢量声呐探头采集的水声场海量数据转换生成三维可视化渗流场云图,原位定量测定岩溶区水文地质参数(流量、流速、流向、渗透系数等),从而揭示复杂岩溶区的地下水分布和岩溶发育特征,有效规避岩溶地质施工风险,对类似工程具有一定的指导及参考作用。In order to solve the problem that it is difficult to quantitatively determine the hydrogeological parameters of karst areas with the current hydrogeological survey methods,the sonar seepage method is used to quantitatively determine the hydrogeological parameters of aquifers in situ.Taking the special karst survey of Nanning Rail Transit Line 4 as an example,combined with the technical methods of pumping tests,geological drilling and comprehensive geophysical exploration,the existing pumping wells,water level observation holes or embedded sonar detection tubes are used for on-site testing.The massive data of underwater acoustic field collected by the vector sonar probe are converted into three-dimensional visualization seepage field cloud map,and the hydrogeological parameters(discharge,flow rate,flow direction,permeability coefficient,etc.)in karst areas are measured quantitatively in situ,so as to reveal the groundwater distribution and karst development characteristics in complex karst areas,which could effectively avoid the risk of karst geological construction,and have a certain guidance and reference for similar projects.

关 键 词：岩溶水 声呐渗流法 三维可视化 渗流场 水文地质参数 

分 类 号：P641.7[天文地球—地质矿产勘探]