Study Of The Hole Exploration With High Density Resistivity

The preface "of the article introduces essentials including contents of study and problem to be solved, Tht first chapter of this article explains the situation of development, the fundamental theory, the implement principle and the system combination of high density resistivity(HDR). It also expatiates the methods of operation in the field and the technique of processing resistivity data. It makes lots of FEM forword calculation to method of portrait differentiate ratio parameter of data-continuous process. It also introduces the basic content of Resistivity Tomography Technology. In this chapter, it makes summarizes of the mathematical model of Zhody infers? tomography and calculation simply and clearly. In the second chapter of this article, it makes the derivation of finite-element method FEM forword calculation in detail . It gives the mathematical models of FEM forword calculating method.It also assumes the geophysical models of hole, and expatiates the precondition of hole survey of HDR. Through a lot of FEM forword calculation, it. mainly expatiates reflecting ability, singularity form and distinguishable method of the defferent arrays :of HDR under different resistivity models. At the same time, it discusses the distinguishing ability of different arrays to adjoining holes under different resistivity models. It defines the illegibility of this technique in hole survey. It summarizes the ways to improving the precision of quantitative explanation,and improves the appliance effect of this technique. Thethird chapter introduces successful engineering examples, they prove proper appliance of these operating methods and technique of processing data can solve many engineering problems.The forth chapter summarizes major contents of research and discussion, and makes some ambiguous appliance points of HDR become clear.