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山区公路勘测中,地质工作量校大而地质勘探通常是用手摇土钻、钢纤及镐铲等简单工具来完成的。如遇厚覆盖层、碎砾石质土壤、岩堆及风化破碎的岩层,用简单的工具是有困难的。我院曾在山地勘探中试用物探来解决某些地质问题,现作一介绍:现用的电法勘探理论是假定电场按半无限空间分布的,并设测量电极 MN→0的情况下绘成一套理论曲线(即量板),把实测的曲线与它比较而得出地质成果,适用在地层结构简单,地形平坦,并要求不同的岩石(土壤)有各异的电阻率。一、物探所需仪器及工具设备山区物探的设备,应力求轻便,结实耐用,如表所列:
In mountainous highway surveys, geological workloads are large and geological exploration is usually done by simple tools such as hand-cranked earth drilling, steel fiber and pickaxe. In the case of thick overburden, gravelly soil, rock piles and weathered crushed rock formations, simple tools can be difficult. We have tried geophysical exploration in mountainous exploration to solve some geological problems. Now we introduce an introduction: the current theory of electrical prospecting assumes that the electric field is distributed in a semi-infinite space and the measurement electrode MN → 0 is drawn as a Set of theoretical curves (ie, measuring plate), the measured curve is compared with the resulting geological results, applicable to the stratum structure is simple, flat terrain, and require different rocks (soil) have different resistivity. First, geophysical equipment and tools required Geophysical equipment in the mountains, should strive to light, durable, as listed in the table: