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最近收到几个读者的来信,提出了一些水文地质工作方面的问题;现按问题性质归纳答复如下:一、钻孔简易水文地质观测的意义怎样?它的主要工作内容有些什么?钻孔的抽水试验和压水试验是了解岩层渗透性质主要的野外试验方法;但进行上述试验都需要大量的专门器材、时间和人力;而其中压水试验的结果又只能反映出地层非常局部的透水性质。钻孔简易水文地质观测与上述野外试验相较有许多优点:首先它不需要什么专门的器材、时间和人力,而通过这种观测可以对整个钻探过程中所遇到的岩层的透水
Recently received letters from several readers and put forward some hydrogeological problems; the current responses to the questions are summarized as follows: I. What is the significance of drilling a simple hydrogeological observation and what are its main contents? Pumping tests and water pressure tests are the main field test methods for understanding the permeability of rock formations; however, extensive testing of equipment, time, and manpower is required to carry out the above tests; however, the results of the pressure water tests can only reflect the very localized water permeability of the formation . Drilling simple hydrogeological observations have many advantages over the field experiments described above. First, it does not require any specialized equipment, time, or manpower. Through this observation, it is possible to see through to the seepage of the rock formation encountered throughout the drilling process