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1. (WO2018195919) INTELLIGENT NUMERICALLY-CONTROLLED EXTRA-HIGH PRESSURE TRUE THREE-DIMENSIONAL NON-UNIFORM LOADING AND UNLOADING AND PRESSURE REGULATING MODEL TEST SYSTEM

Pub. No.:    WO/2018/195919    International Application No.:    PCT/CN2017/082448
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Sat Apr 29 01:59:59 CEST 2017
IPC: G01N 3/00
G01N 33/00
Applicants: SHANDONG UNIVERSITY
山东大学
Inventors: ZHANG, Qiangyong
张强勇
LI, Shucai
李术才
LIU, Chuancheng
刘传成
WANG, Hanpeng
王汉鹏
WU, Dong
吴冬
XIANG, Wen
向文
ZHANG, Yue
张岳
REN, Mingyang
任明洋
Title: INTELLIGENT NUMERICALLY-CONTROLLED EXTRA-HIGH PRESSURE TRUE THREE-DIMENSIONAL NON-UNIFORM LOADING AND UNLOADING AND PRESSURE REGULATING MODEL TEST SYSTEM
Abstract:
Disclosed is an intelligent numerically-controlled extra-high pressure true three-dimensional non-uniform loading and unloading and pressure regulating model test system, the system comprising a combined rack reaction force device (1), an extra-high pressure true three-dimensional non-uniform loading and unloading device (2), an intelligent hydraulic loading and unloading and pressure regulating numerically-controlled system (3), a model displacement automatic testing system (4), and an HD multi-probe surveillance system (5), wherein the extra-high pressure true three-dimensional non-uniform loading and unloading device (2) is disposed within the combined rack reaction force device (1) to perform extra-high pressure true three-dimensional loading and unloading of a test model, and the intelligent hydraulic loading and unloading and pressure regulating numerical control system (3) is connected to the extra-high pressure true three-dimensional non-uniform loading and unloading device (2) via a high pressure oil tube (15); the extra-high pressure true three-dimensional non-uniform loading and unloading device (2) is digitally servo controlled by an input instruction of the intelligent hydraulic loading and unloading and pressure regulating numerical control system (3) to perform extra-high pressure true three-dimensional gradient non-uniform loading and unloading and pressure regulating control; the module displacement automatic testing system (4) automatically collects the displacement of any parts within the model; and the HD multi-probe surveillance system (5) dynamically observes the excavation deformation failure process of a model cavern (19) in real time. The test system has the advantages of a large and adjustable size of the reaction force device, servo controlled loading, a large load value, high loading accuracy, good pressure regulating performance, and non-uniform loading, etc. The test system can subtly simulate the discontinuous deformation and failure process of deep cavern excavation under complex environmental conditions, and automatically test and obtain accurate information about multi-physical field evolutions, such as displacement, stress and strain of surrounding rocks of the cavern. The test system is used to simulate the non-linear deformation and failure mechanism of deep underground engineering, such as in energy, transportation, hydropower and mining.