地下水单井综合观测的“循环法”及其原理

Circular method" of comprehensive observations of underground water in single well and its principle

主要介绍在地下水前兆观测中采用“循环法”实现静水位 -水化学单井综合观测技术方案。该方法通过设置一循环系统 ,在保持静水位状态观测的同时 ,位于井口处的循环回路上部可获取深部含水层水化学观测 ,从而为实现同时满足水位和水化学观测要求的单井综合观测提供了基础。还就该方法在水化学观测方面的工作原理给出了定量描述 ,推导了井孔观测系统的水化学平衡方程 ,为该方法的有效性给出了理论证明 。

This paper proposed a 'circular method' of underground water precursor observation to achieve comprehensive static water level and hydrochemical observations in a single well. A circular system is introduced. The hydrochemical observation can be conducted at the top part of the circular system, which is located at the well entrance. Since the water level observation at the static water level state can be achieved simultaneously, this method provides the base for single well comprehensive observation for both the well water level and hydrochemistry. The principle of this method in the hydrochemical observation has been described quantitatively. The hydrochemical equilibrium equation has been deduced, which theoretically proves the efficiency of the circular method. Some experimental results are also introduced in the paper.