摘要
以福建某矿山矿体为研究对象,通过现场原位测试,并结合室内矿物超声波波形测试和单轴压缩试验,利用GSI系统下Hoek-Brown强度准则,研究了波形衰减系数估算矿体变形模量的新方法。结果表明:由块状矿物波形衰减系数得到的矿体变形模量估算值与实测值非常吻合,误差为2%~5%左右,为简单、快速、准确获取矿体强度参数提供了新思路。
Taking an ore body in a mine in Fujian as the research object, a new method for estimating the deformation modulus of ore body by using the Hoek-Brown strength criterion under GSI system is studied through in-situ testing,combined with the indoor ultrasonic wave waveform testing and uniaxial compression test of minerals. The results show that the estimated values of the deformation modulus obtained from the attenuation coefficient of the waveform of massive minerals are in good agreement with the measured values, and the error is about 2%~5%. This provides a new idea for obtaining the strength parameters of ore bodies simply, quickly and accurately.
引文
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