摘要
纵波速度划分岩体等级对地下空间工程具有重要的意义。基于Faust公式,建立了表征电阻率和纵波速度的超定方程组,并研究了β系数的确定方法。通过数值模拟手段,验证了近地表岩体纵波速度成像方法的有效性。结果表明,该方法对层状地层、含断层、高低阻地质异常等复杂地质结构均具有良好的反映能力。应用实例表明,计算值与实测值之间的误差小于8.7%,可为工程勘察提供可信的纵波速度。
It is meaningful to the underground engineer that the P-wave velocityto the Faust formula , the overdetermined equation of resistivity data and P -wave velocity is built , and the way of p determination is researched. Validity of this rock mass velocity map imaging way is proved according to the numerical simulation. The re-sult shows this way is useful to the complex geological structure like layered formation , fauhigh or low resistance. The application example shows the error of the calculate and the meP-wave velocity calculated by this way is credible to the geotechnical investigation and surveying.
出处
《物探化探计算技术》
CAS
CSCD
2017年第6期742-747,共6页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家重大科研仪器研制项目(41427803)
