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29:什么叫电测?答:在水利建设中,无论是修水库、渠道、或是开发利用地下水,都会遇到地质问题,比如:水库的坝址和库区的地质条件如何,坝基附近岩石的破碎情况如何?复盖层多厚?修渠道线渗漏情况如何?在什么地方有丰富的地下水适宜打井?含水层多厚或埋藏多深?……等等。要想解答这一系列的问题就必须进行地质勘探,勘探地质的方法很多,过去多采用钻探的方法,取得的资料比较准确可靠,但工作量大,费时间长,在经济技术条件上受到一定的限制。近几年来各地开始采用了一种新的进度快节省人力物力的勘探方法——电测。电测是电法勘探的简称,也叫
29: What is electrical measurement? A: In water conservancy construction, whether it is repair reservoirs, channels, or the development and utilization of groundwater, will encounter geological problems, such as: reservoir dam site and the geological conditions of the reservoir area, the rock near the dam foundation What is the case of crushing? How to repair the leakage of channel? Where is the groundwater suitable for drilling wells? How thick aquifer or burial depth ... ... and so on. In order to answer this series of questions, it is necessary to carry out geological exploration. There are many methods for exploration of geology. In the past, more drilling methods were used and more accurate and reliable information was obtained. However, the workload was heavy and the time was long, which was hit by certain economic and technological conditions limits. In recent years, a new progress has been adopted in various places to quickly save manpower and material resources - electric measurement. Electrical measurement is the abbreviation of electrical exploration, also called