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首页> 外文期刊>Arabian Journal for Science and Engineering >Non-Destructive Evaluation of Engineering Propertiesof Intact Rock Using the Friction-Transfer Method
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Non-Destructive Evaluation of Engineering Propertiesof Intact Rock Using the Friction-Transfer Method

机译：摩擦转移法对完整岩石工程特性的无损评估

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摘要

Non-destructive testing of a body of a rock offers advantages of speed and cost in comparison with test methods which require the removal of a sample. The range of properties that can be measured in this way is considerable, and much valuable information may be obtained. One of the non-destructive methods that has been proposed and developed by the author in recent years is an in situ test called the friction-transfer method. In this method, after drilling a 50 mm partial core, a specially devised metallic gripping device is clamped to the top of the partial core. To measure the rock strength, a torque is applied using an ordinary torque-meter and the maximum torque or shear stress at failure is calculated. The present study employed 16 different rock types, studying the relationship between the friction transfer and the respective unconfined compressive strength results. We found a strong correlation between the unconfined compressive strengths of the tested rocks and their friction-transfer readings. Considering the most common failure criteria adopted in rock engineering, different properties, such as cohesion, tensile strength, の and m values of 16 different rocks, were calculated.
机译：与需要移除样品的测试方法相比，岩石体的非破坏性测试具有速度和成本优势。可以用这种方法测量的性能范围是相当大的，并且可以获得很多有价值的信息。作者近年来提出和开发的一种非破坏性方法是称为摩擦传递方法的原位测试。在这种方法中，在钻出50毫米的部分型芯之后，将专门设计的金属夹持装置夹紧到部分型芯的顶部。为了测量岩石强度，使用普通扭矩计施加扭矩，并计算出最大扭矩或破坏时的切应力。本研究采用了16种不同的岩石类型，研究了摩擦传递与各自无侧限抗压强度结果之间的关系。我们发现被测岩石的无侧限抗压强度与其摩擦传递读数之间存在很强的相关性。考虑到岩石工程中最常见的破坏准则，计算了16种不同岩石的内聚力，抗拉强度，の和m值等不同属性。

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