激电找水应用基础研究

本文针对当前激电找水在应用基础方面存在的一些主要问题, 进行了较系统的实验和理论研究。(1)根据在四百多个含水砂样上测得的近千条放电曲线, 给出并阐述了样品极化率和半衰时与多种影响因素的关系, 特别对粘土在砂—水体系中的作用进行了较深入研究;总结了一个描述放电二次场的数学模型;提出了有重要实用价值的偏离度参数。(2)通过对有限大小含水体和水平含水层上等比装置激电测深的理论计算及模型实验, 明确了视极化率测深曲线的基本特征及异常规律;指明了与常规对称四极结果的差别, 给出了确定有限体埋深和反演水平层层参数的定量解释方法。

THE FUNDAMENTAL STUDY OF GROUND WATERPROSPECTING BY INDUCED POLARIZATION METHOD

This paper presents results obtained from a systemtaic theoretical andexperimental study of foundations for ground water prospecting with IPmethod. It shows the relation of η and S_t responses with varied influentialfactors, formulates a mathematical model describing the discharing secondaryfield of IP, suggests an IPparameter called "degree of deviation" which is ofimportant practical value and, from theoretical and experimental study ofequal-ratio array IPsounding on the finite body and horizontal layel, indica-tes the anomaly law of apparent polarizabijity curves and the differencebetween equal-ratio and Schlumberger array. Tt also puts forward an inversedinterpretation method for the finite body and horizontal layers.