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引言为了改进传统的勘探方法,首先应摸清五年多来在大坝设计阶段经常应用的勘探方法。但大多数传统勘探方法已不断发展了新的工艺技术。应用电子计算机进行分析的方法进展很快,在叙述本文主题之前,我们先回顾一下某些传统方法的发展过程。在地质学方面,我们广泛应用了一些最新的方法,如孢粉学、天然放射性同位素。~(18)O同位素的应用能确定集水区的高程,~3H(氚)可推定不满25年的地下水年龄。
INTRODUCTION In order to improve traditional exploration methods, first of all, the exploration methods that have been applied frequently in the dam design stage for more than five years should be found out. However, most traditional exploration methods have been continuously developed with new process technologies. The method of using computer analysis is moving fast. Before describing the subject of this paper, let’s review the evolution of some of the traditional methods. In geology, we have widely used some of the latest methods, such as palynology, natural radioisotopes. The application of ~ (18) O isotopes can determine the elevation of the catchment, and ~ 3H (tritium) can be presumed to be groundwater age less than 25 years.