土的视电阻率的各向异性指数随裂隙深度开展的变化规律研究

发布时间：2018-05-07 06:06

  本文选题：裂隙深度 + 视电阻率　； 参考：《科学技术与工程》2014年34期

【摘要】：土中裂隙不论对环境、工程还是农业都有危害。目前的研究裂隙的方法有很多,但都有其缺陷,特别在裂隙深度上的研究没有一个经济无损可以广泛应用的方法。用单层电极模型来分析研究具有不同裂隙开展的土的视电阻率的各向异性指数(AI),掌握各向异性指数的变化规律;用有机玻璃板作为裂隙,通过四电极法做多层电极室内试验证上诉规律。得出单层电极测量裂隙深度对土体的AI的影响存在1倍电极距离的影响范围,AI变化率在裂隙相对深度接近于0点取到峰值,以此提出裂隙的深度的测试方法。
[Abstract]:Cracks in soil are harmful to environment, engineering and agriculture. At present, there are many methods to study fracture, but all of them have their defects, especially in the depth of fracture, there is no economic lossless method that can be widely used. The anisotropy index of apparent resistivity of soils with different fractures is studied by single layer electrode model, and the variation law of anisotropy index is grasped, and the organic glass plate is used as fracture. Through four-electrode method to do multi-layer electrode indoor test evidence appeal rule. It is concluded that the influence of single layer electrode on the AI of soil is one time of the electrode distance. The change rate of AI reaches the peak value when the relative depth of fracture is close to zero, and the method of measuring the depth of fracture is put forward.
【作者单位】： 河海大学岩土力学与堤坝工程教育部重点实验室 岩土工程研究所;
【基金】：国家重点基础研究发展规划项目(2012CB719805) 浙江大学开放基金项目(2011904)资助
【分类号】：TU411
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本文编号：1855703