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首页> 外文期刊>Geotechnical testing journal >The Rotating Erosion Testing Apparatus (RETA): A Laboratory Device for Measuring Erosion Rates versus Shear Stresses of Rock and Cohesive Materials
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The Rotating Erosion Testing Apparatus (RETA): A Laboratory Device for Measuring Erosion Rates versus Shear Stresses of Rock and Cohesive Materials

机译:旋转侵蚀测试仪(RETA):一种用于测量岩石和粘性材料的侵蚀率与剪切应力的实验室装置

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摘要

This paper describes an apparatus for testing the erosion rate of erodible rock and stiff clay as a function of water-flow-induced shear stress. The device, referred to as the Rotating Erosion Testing Apparatus, or RETA, is similar in design to other devices but has a number of advantages. The RETA uses a real-time control unit that monitors the shear stress via the torque imparted to the sample and adjusts its rotational speed to maintain a nearly constant shear stress throughout the test. RETA test results have been used to estimate local sediment erosion rates at structures founded in these types of bed materials.
机译:本文介绍了一种用于测试易蚀岩石和硬质粘土的侵蚀速率与水流引起的切应力的函数关系的装置。该设备被称为旋转侵蚀测试设备(RETA),其设计与其他设备类似,但具有许多优势。 RETA使用实时控制单元,该单元通过施加到样品上的扭矩来监控剪切应力,并调整其旋转速度,以在整个测试过程中保持几乎恒定的剪切应力。 RETA测试结果已用于估算在这些类型的床层材料中建立的结构的局部沉积物侵蚀速率。

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