摘要
本文总结了广西第二水文地质工程地质队近年来开展城市水文地质和工程地质调查中物探方法应用的效果。文中较系统地论述了应用综合电法找岩溶水的经验和事例,指出应重视地下岩溶水赋存地质背景条件、综合电法工作程序、异常解释和钻孔布置及找水效果的反馈,并总结了电法异常形态特征与钻孔涌水量的相关性和估算岩溶发育程度的经验公式;应用电测深资料对第四系分层与确定软土层、砂砾石层的埋深、厚度等参数;还概述了编制城市物探图件的作用。
This paper has summarized the effects on the application of geophysical prospecting method to the hydrogeological and engineering geological investigation in urban area which is employed by the Second Party of Hydrogeology and Engineering geology of Guangxi in recent years. It more systematically discusses the experience and cases of application of the complex electrical prospecting method to searching for karst water. It has . pointed out that the feedbank of the conditions of occurring geological background of karst water, the working order of complex electrical prospecting, the interpretation of anomalies, the bore-hole arrangement and the effect of searching for water should be paid attention to. It has summarized the correlativity of the characteristics of electrical anomalous forms and the gushing quantity, and the experience formula for estimation of the degree of karst development; has applied the information of electrical sounding to deviding the Quaternary strata and determing the coeffients such as buried depth, thickness, etc. of soft soil bed and sandy gravel bed; has summed up the effect on drawing up geophysical prospecting maps for city.
