边界元法在中梯装置视电阻率二维地形改正中的应用  

Application of boundary element method for the central gradient array of apparent resistivity at two-dimensional terrain correction

作　　者：梁芳敏[1] 张小路[1] 匡应平[1] 魏继祖[1] 

机构地区：[1]桂林理工大学地球科学学院,桂林541004

出　　处：《矿产勘查》2010年第4期389-392,共4页Mineral Exploration

摘　　要：文章应用边界单元法进行中间梯度装置视电阻率法二维任意地形改正。在此过程中,应用边界单元法数学理论基础,编制求解方程组的计算机程序,并计算了纯地形的视电阻率。通过与模拟实验结果对比,证明其正确性,然后将实际项目的实测电阻率与其纯地形视电阻率进行比值改正,有效地解决实际地球物理问题,验证了方法的实用性和有效性。In the article, the authors used the boundary element method for the central gradient array of apparent resistivity method at arbitrary two -dimensional topographic correction. In this process, the authors, using the mathematical theory of the boundary element method, established the computer program to solve the equation set and calculated the apparent resistivity of the net terrain. The authors compared the calculated values with actual one, and made a ratio correction on the calculated value so as to solve practical problems of geophysical exploration, which confirmed the practicality and effectiveness of the.

关 键 词：电阻率法勘探 视电阻率 地形改正 奇异值分解 边界单元法 

分 类 号：P631.3[天文地球—地质矿产勘探]