公开(公告)号：US20220381661A1

公开(公告)日：2022-12-01

申请号：US17828860

申请日：2022-05-31

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING

Inventor： Ruidong PENG ,  Hongwei ZHOU ,  Wenhao JIA ,  Yu YANG ,  Kai SI ,  Jianqiang WANG

IPC: G01N3/10 ,  G01N33/24 ,  G01N3/06

Abstract: A pressure-preserving conventional triaxial compression loading apparatus of the present invention includes a pressure vessel, an upper piston rod, a lower piston rod, and an annular oil bag assembly. Hollow chambers of the pressure vessel in vertical communication sequentially include an upper chamber, an upper sealed chamber, a confining pressure chamber, a lower sealed chamber, and a lower chamber from top to bottom. The annular oil bag assembly is placed in the confining pressure chamber. When an annular inner chamber of an annular oil bag is filled with medium, an outer wall of the annular oil bag and an inner wall of the confining pressure chamber are attached together. A fidelity specimen is placed in a specimen chamber defined by a lower end surface of the upper piston rod, an upper end surface of the lower piston rod, and an inner wall of the annular oil bag. A variety of measuring sensors are disposed in the annular inner chamber of the annular oil bag. The pressure-preserving conventional triaxial compression loading apparatus of the present invention may accommodate a fidelity specimen, and use the annular oil bag assembly and the upper and lower piston rods to perform a pressure-preserving conventional triaxial loading test on the fidelity specimen, so that test data is more accurate and reliable, to help to study the mechanical behavior of in-situ rock and measure their properties more faithfully.

公开(公告)号：US20170350833A1

公开(公告)日：2017-12-07

申请号：US15539835

申请日：2016-07-05

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING

Inventor： Yang JU ,  Jianqiang WANG ,  Ruidong PENG ,  Lingtao MAO ,  Hongbin LIU

IPC: G01N23/04 ,  G06T11/00

CPC classification number: G01N23/046 ,  G01N2223/311 ,  G06T11/005 ,  G06T2207/10081 ,  G06T2211/428

Abstract: An industrial CT scanning test system. The test system includes a test base, a multi-axis motion swivel table supported on the test base, a ray generator, an image acquisition device, and a fluid pressure loading device, and further includes a control device. The fluid pressure loading device includes at least one loading cylinder, and in case of performing a scanning experiment, the at least one loading cylinder is placed on a sample stage of the multi-axis motion swivel table together with a sample, and real-time loading of loads in different directions on the sample is performed according to test requirements.

公开(公告)号：US20170350832A1

公开(公告)日：2017-12-07

申请号：US15539811

申请日：2016-07-05

Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING

Inventor： Yang JU ,  Jianqiang WANG ,  Ruidong PENG ,  Lingtao MAO ,  Hongbin LIU

IPC: G01N23/04

CPC classification number: G01N23/046 ,  G01N2223/311 ,  G01N2223/33 ,  G01N2223/3306 ,  G01N2223/40

Abstract: A fluid pressure loading device applied to an industrial computed tomography scanning test system includes a body, a sample accommodating chamber and at least one fluid medium chamber being provided in the body. Each of the at least one fluid medium chamber is provided therein with a piston, the corresponding fluid medium chamber is separated into two chambers by the piston, one of the two chambers is in communication with an external hydraulic medium via oil lines provided in the body, the other of the two chambers is in communication with the sample accommodating chamber, and one end, facing towards the sample accommodating chamber, of the piston is extendable into the sample accommodating chamber. With the loading device, real-time loading of a test sample can be realized, thus improving a simulation accuracy of the system, and multi-directional loading of the sample can be realized.