岩溶裂隙水探查方法优化与工程治理研究  

Research on optimization of karst fissure water exploration methods and engineering countermeasures

作　　者：刘人太[1] 李术才[1] 张庆松[1] 张霄[1] 葛颜慧[1] 韩伟伟[1] 

机构地区：[1]山东大学岩土与结构工程研究中心,济南250061

出　　处：《岩土力学》2011年第4期1095-1100,1107,共7页Rock and Soil Mechanics

基　　金：国家自然科学基金资助(No.50874068);山东大学自主创新基金(No.2009TS094)

摘　　要：在岩溶裂隙涌水治理中,含水构造的三维空间展布规律、水力连通关系难以探明是制约治理工期和经济成本的关键因素。为解决地质雷达探测在岩溶富水区域存在的受干扰强、多解性、信号失真等难题,基于概率学理论,提出了雷达测线布置的网格法;基于电磁波传播理论,研究了电磁波在含水构造界面上的反射和折射能量分配规律,分析了含水薄层对雷达低频反射信号的作用机制,讨论了在岩溶裂隙富水区雷达探测含水裂隙的判识标准。结合湖北沪蓉西高速公路恩利段齐岳山隧道底板岩溶裂隙涌水工程治理实例,阐述了地质雷达探测在探明含水裂隙空间展布规律和最佳注浆孔的确定中的应用。研究成果的应用产生了良好的生态、安全和经济效益,对类似工程具有一定的借鉴作用。In the management of the karst fissure water, the 3D extension law of the water-bearing formation and the hydraulic cross-connection of fissures which are difficult to find out are key factors of the construction time limit and the cost of engineering. The ground penetrating radar （GPR） detection in karst area is affected by strong interference, multiple solutions, signal distortion; so the grid method is put forward based on the probability theory. Based on the electromagnetic wave propagation theory, the energy distribution law of the reflection and refraction on the interface water-bearing thin bed on the low frequency reflection signal of the water-bearing formation is researched. The mechanism of the of radar is analyzed. The criteria of the detection of water-bearing fissure in the karst area are discussed. Combined with the example of the karst-water management in the Qiyueshan tunnel floor, the applications of GPR to the detection of the water-bearing extension law and the choice of the best grouting hole are described. The conclusions can bring the ecological, safe and economic benefits; and the research can provide a reference for similar projects.

关 键 词：探地雷达 雷达测线布置的网格法 低频压制 含水裂隙判识:最佳注浆孔 

分 类 号：TU443[建筑科学—岩土工程]