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首页> 外文期刊>Tunnelling and underground space technology >A true triaxial geomechanical model test apparatus for studying the precursory information of water inrush from impermeable rock mass failure
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A true triaxial geomechanical model test apparatus for studying the precursory information of water inrush from impermeable rock mass failure

机译：真正的三轴地质力学模型试验装置，用于研究不可渗透岩体破坏突水的先兆信息

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摘要

To study the precursory information of water inrush from impermeable rock mass failure, a true triaxial geo-mechanical model test apparatus was developed. The test apparatus designed is 5.5 m in length, 4.0 m in width and 2.5 m in height. It is mainly composed of a steel frame system, a hydraulic control system, a water pressure loading system and a data monitoring system. The main feature of the true triaxial model test apparatus is its ability to apply high, uniform compressive loads in all three principal directions to perform tests under true triaxial static loading conditions. The apparatus can also be used to study the solid-fluid interaction of the surrounding rock mass and water. A test sample can be placed into and removed from the apparatus automatically and conveniently by hydraulic control software. A model test of the water inrush in the Xiema Tunnel, which is located in Chongqing, China, was carried out by using this apparatus. The size of the experimental sample was 1500 x 1000 x 1000 mm. The variations in displacement, stress and seepage pressure were investigated. The test results indicate that the apparatus is stable and reliable.
机译：为了研究不可渗透岩体破坏突水的先兆信息，研制了一种真正的三轴地质力学模型试验装置。设计的测试设备长5.5 m，宽4.0 m，高2.5 m。它主要由钢架系统，液压控制系统，水压加载系统和数据监控系统组成。真正的三轴模型测试设备的主要特征是能够在所有三个主要方向上施加均匀的高压缩载荷，以在真正的三轴静态载荷条件下进行测试。该设备还可用于研究围岩与水的固液相互作用。可以通过液压控制软件自动方便地将测试样品放入设备或从设备中取出。使用该设备对位于中国重庆的Xiema隧道的突水进行了模型测试。实验样品的尺寸为1500×1000×1000mm。研究了位移，应力和渗透压力的变化。测试结果表明该装置稳定可靠。

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