论文部分内容阅读
在水利工程、农田水利和各种水文地质勘探中,地下水的流向测定十分重要。1963年Arsenal研究所的J.Mairhofer最早提出了利用放射性同位素方法在单独钻孔内确定地下水流向(俗称“单孔定向”)的方法,并进行了一些室内外试验。随即许多国家开展了这方面的研究。有的还研制成同位素地下水流向仪,获得了实际应用。 自1973年以来,我院利用研制的NSD-A型地下水流向仪,作了测定地下水流速流向的室内试验,并在几个大中型重点险库现场试用,配合其他同位素示踪法观测资料,为水库大坝渗流安全分析与除险保坝加固工程提供了科学依据。
In hydraulic engineering, farmland water conservancy and various hydrogeological exploration, it is very important to measure the flow of groundwater. In 1963 J.Mairhofer of the Arsenal Institute first proposed the method of determining the groundwater flow (commonly known as “single-hole orientation”) in a single borehole by radioisotope method and conducted some indoor and outdoor experiments. Immediately many countries carried out research in this area. Some also developed into isotope groundwater flow meter, obtained practical application. Since 1973, our hospital has made use of the developed NSD-A groundwater flowmeter to make an indoor test for determining the flow velocity of groundwater. Several field trials of large and medium-sized key depots have been carried out. In combination with other isotope tracing methods, The reservoir dam seepage safety analysis and the reinforcement of dam reinforcement project provides a scientific basis.