摘要
地球物理测井,因其探测器与探测对象距离小,所获的异常强度大,而且克服了地形起伏、覆盖层物性不均匀等因素对观测结果的影响,提高了测量精度。利用视电阻率、自然电位、声波、自然伽马密度测井曲线的幅值和形态特征,对渝利线方斗山隧道围岩进行稳定性评价。探讨了地球物理综合测井方法在渝利线隧道围岩稳定性评价中的应用成果,同时总结了影响测井质量的诸多因素,并提供了解决方法。
This paper makes an evaluation on stability of the rock around the tunnel in Yuli line Doosan side by the use of apparent resistivity, spontaneous potential, sound wave , the amplitude and morphological characteristics of the natural gamma logging density. It demonstrates the results of the application of the integrated geophysical logging methods in the Yu--li--line assessment of tunnel stability, sums up a lot of factors that influence the quality of logging, and proposes a solution.
出处
《工程地球物理学报》
2009年第5期641-645,共5页
Chinese Journal of Engineering Geophysics
关键词
铁路隧道
测井曲线
围岩分级
稳定性评价
railway channel
logging curve
wall rock classification
stability assessment
