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一、前言:近年來水文地質測繪工作,各地都先后开始进行着,通过地下水等水位綫和等深綫而了解地下水位的动态是区域水文地質測繪最主要的工作內容之一,因水文地質測繪在工作要求上一般是普查的,普遍地布置淺鑽孔进行渗透性試驗;求得地下水位,由于所布置的長期观測孔数目在鑽孔总数中只占极小的比重,加以工作流动性很大,在各鑽孔所測得的地下水位日期相差短者十几天,長者一,二个月,故同一天的地下水等水位綫或等深綫就无法繪制了。
I. Preface: In recent years, hydrogeological surveying and mapping work has been carried out all over the country. It is one of the most important work items of regional hydrogeological surveying to understand the dynamic of groundwater level through groundwater level lines and isobaths. Because of the hydrogeological mapping In the work requirements of the general census, the general arrangement of shallow borehole permeability test; obtained groundwater level, due to the number of long-term observation holes arranged in the total number of borehole only a very small proportion, to work fluid It is very large. The dates of the groundwater table measured at each drilling hole are different for a short period of ten days and the elderly one or two months. Therefore, the water level or the isobath of underground water on the same day can not be drawn.