首页> 美国政府科技报告 >Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Geotechnical Applications of the Self Potential (SP) Method. Report 4. Numerical Modeling of SP Anomalies: Documentation of Program SPPC and Applications.

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Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Geotechnical Applications of the Self Potential (SP) Method. Report 4. Numerical Modeling of SP Anomalies: Documentation of Program SPPC and Applications.

机译：维修，评估，维护和康复研究计划。自电位（sp）方法的岩土应用。报告4. sp异常的数值模拟：程序sppC和应用程序的文档。

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This manual describes the theory and operations of program SPPC. This code, a microcomputer (PC) version of program SPXCPL, calculates the self potential anomaly due to fluid and thermal sources in geologic media. Fluid and heat flow generate significant electrical potentials due to cross-coupling between fluid and heat flow and the flow of electrical current.The SP anomalies are largest near the primary flow sources and in regions where the cross-coupling coefficients change (geological boundaries). Program SPPC allows for the forward model calculation of primary potential (pressure or temperature) and secondary potential (voltage) for discrete sources of heat or pressure in a two-dimensional model of the earth. Input for the program involves a small mesh where values are assigned for permeability or thermal conductivity, cross-coupling coefficients, and electrical resistivity. Magnitude and location of the primary sources (fluid or heat flow) must also be specified. The output file provides values for the primary potential and voltage on the surface and throughout the two-dimensional model. The manual provides a discussion of the input parameters, a section on how to read the output, and some guidance on applying the program to physical problems. The program was validated with an analytical solution for a point pressure source in a homogeneous halfspace. A field example is shown where SP data collected near a leaky dam site is used to locate the zone of leakage. The potential users of program SPPC is urged to read report 3, ADA 207704, in this series for guidance on obtaining the required modeling parameters. (edc)

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作者
Wilt, M. J.; Butler, D. K.;
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年度 1990
页码 1-34
总页数 34
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Electric current; Engineering geology; Fluid flow; Heat transfer; Analytic functions; Anomalies; Boundaries; Coefficients; Computations; Computer program documentation; Computer programs; Coupling(Interaction); Dams; Earth models; Electrical properties; Electrical resistance; Files(Records); Geology; Heat; Input; Leakage(Fluid); Manuals; Mathematical models; Media; Mesh; Microcomputers; Output; Parameters; Permeability; Physical properties; Pressure; Rehabilitation; Repair; Secondary; Sites; Solutions(General); Sources; Surfaces; Temperature; Thermal conductivity; Thermal properties; Two dimensional; Voltage; Self potential anomalies; SPPC computer program; User manuals(Computer programs); Cross coupling coefficients;

机译：电流;工程地质;流体流动;传热;分析功能;异常;边界;系数;计算;计算机程序文档;计算机程序;耦合（相互作用）;水坝;地球模型;电气特性;电阻;文件（记录） ;地质;热;输入;泄漏（流体）;手册;数学模型;介质;网格;微型计算机;输出;参数;渗透性;物理性质;压力;修复;修复;次要;场地;解决方案（一般）;来源;表面;温度;导热系数;热性能;二维;电压;自电位异常; sppC计算机程序;用户手册（计算机程序）;交叉耦合系数;

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Repair, Evaluation, Maintenance, and Rehabilitation Research Program. Geotechnical Applications of the Self Potential (SP) Method. Report 4. Numerical Modeling of SP Anomalies: Documentation of Program SPPC and Applications.

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