公开(公告)号：US10976455B2

公开(公告)日：2021-04-13

申请号：US16008044

申请日：2018-06-14

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Jianliang Pei ,  Lu Wang ,  Huining Xu ,  Xiaozhang Lei ,  Wenxi Fu ,  Jianhui Deng

IPC: G01V1/16 ,  G01V1/18

Abstract: A test system for a microseismic test of rock mass fractures provided by the present invention includes at least one microseismic sensor, a push rod provided at two ends of the microseismic sensor through a connecting mechanism for feeding the microseismic sensor into a monitoring hole , an introducing mechanism mounted on the push rod for introducing the microseismic sensor into the monitoring hole, a hydraulic system providing support hydraulic oil for the microseismic sensor, a microseismic monitoring computer connected with the signal of microseismic sensor through; the microseismic sensor includes a microseismic probe, a holding component holding the microseismic probe, a support plate and a hydraulic support mechanism; the connecting mechanism can make the push rod swing relative to the microseismic sensor, and the introducing mechanism is three-rollers introducing mechanism.

公开(公告)号：US10794869B2

公开(公告)日：2020-10-06

申请号：US16016829

申请日：2018-06-25

Applicant: Sichuan University ,  Research Institute of Petroleum Exploration & Development, PetroChina Company Limited

Inventor： Jianfeng Liu ,  Huining Xu ,  Jianliang Pei ,  Lu Wang ,  Chunping Wang ,  Xiaozhang Lei ,  Wenxi Fu ,  Jianhui Deng

IPC: G01N29/14 ,  E21B49/00 ,  G01N29/24 ,  E21B47/12

Abstract: The present invention discloses an acoustic emission sensor, including an acoustic emission probe, a probe installation mechanism, and a transmission mechanism transmitting a combination of the acoustic emission probe and the probe installation mechanism to a setting position in a borehole of a monitored rock mass; the probe installation mechanism includes a shell, a probe sleeve, a spring sleeve, a spring, and a fixed pulley component; the probe sleeve is installed in the guide cylinder of the shell, the spring sleeve is fixed on two sides of the probe sleeve, the spring is installed inside the spring sleeve; one end of the first rope in the fixed pulley component is fixedly connected to the end cap in the upper end surface of the probe sleeve through the fixed pulley mounted on the top of the inner wall of the shell.

公开(公告)号：US10704998B2

公开(公告)日：2020-07-07

申请号：US16396784

申请日：2019-04-29

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Huining Xu ,  Jianliang Pei ,  Chunping Wang ,  Jianhui Deng ,  Wenxi Fu ,  Lu Wang

IPC: G01N3/18 ,  G01N3/12 ,  G05B9/02

Abstract: The invention belongs to the field of rock mechanics test of engineering rock masses and is intended to address the safety and alignment challenges of a rock mechanics test response system for existing simulated complex deep earth environment. A rock mechanics test response system for a simulated complex deep earth environment includes a bearing system for rock mechanics tests in simulated deep earth environment and an MTS triaxial sensor aligning and mounting device arranged on the bearing system for rock mechanics tests in simulated deep earth environment. The invention improves installation and dismounting efficiency of an MTS triaxial force sensor, enhances reliability of lifting and solves the problem of aligning holes during installation of the force sensor, thus improving the installation efficiency.

公开(公告)号：US10415388B2

公开(公告)日：2019-09-17

申请号：US15825084

申请日：2017-11-28

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yufei Wang ,  Lingzhi Xie ,  Ru Zhang

IPC: E21D13/00 ,  B65G5/00 ,  E21B43/28 ,  E21B43/40 ,  C09K8/38

Abstract: A device for constructing an underground reservoir by dissolving limestone using carbon dioxide. The device includes a CO2 storage tank; an absorption tower; a decompression valve; a gas-liquid separator; a crystallizer; a vacuum pump; a buffer tank; a first booster pump; a second booster pump; and a third booster pump. The decompression valve is connected to a limestone layer, and is connected to the gas-liquid separator. The absorption tower is connected between the gas-liquid separator and the limestone layer.

公开(公告)号：US20180340874A1

公开(公告)日：2018-11-29

申请号：US16036899

申请日：2018-07-16

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Jianliang Pei ,  Lu Wang ,  Huining Xu ,  Chunping Wang ,  Yilin Liao ,  Qiangxing Zhang ,  Xiaozhang Lei ,  Wenxi Fu

IPC: G01N3/12

CPC classification number: G01N3/12 ,  G01N3/18 ,  G01N33/24 ,  G01N2203/0019 ,  G01N2203/0048 ,  G01N2203/0226 ,  G01N2203/0232

Abstract: The present invention discloses a rock mechanics experiment system for simulating deep-underground environment, including a triaxial chamber consisting of a chamber cavity and a test pedestal, a stress field building module, a high pressure seepage field building module, a high temperature field building and a seepage medium permeating control measurement module arranged in the triaxial chamber, a lifting module used for installing and disassembling of the chamber cavity, and computer module used for controlling the operation of system and calculating and outputting the test data. The lifting module includes a door-shaped support frame, a cylinder piston device vertically mounted on the door-shaped support frame beam, a coupling device and a safety suspension device. The coupling device includes an oil hydraulic rod with the upper end fixedly coupled with the piston, a safety disk fixedly coupled with the lower end of the hydraulic rod, and two symmetrically disposed coupling assemblies.

公开(公告)号：US09488560B2

公开(公告)日：2016-11-08

申请号：US15015151

申请日：2016-02-04

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Jianliang Pei ,  Huining Xu ,  Lu Wang ,  Fei Wu ,  Wenxi Fu

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N3/32 ,  G01N2203/0405 ,  G01N2203/0447

Abstract: A rock sample fixing device with position-limit spring components for cyclic tension and compression tests including: a lower clamp and an upper clamp; the lower clamp including a lower connector connected to a loading base at a bottom of a testing machine, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first central position-limit mechanism, a second central position-limit mechanism, and a first hydraulic mechanism; the upper clamp including an upper connector connected to a loading base at a top of the testing machine, an upper end cap for fixing samples, an upper chain connecting the upper connector and the upper end cap, a third central position-limit mechanism, a fourth central position-limit mechanism, and a second hydraulic mechanism.

Abstract translation: 具有循环张力和压缩试验的位置限制弹簧部件的岩石样品定影装置，包括：下夹具和上夹具; 所述下夹具包括连接到测试机底部的装载基座的下连接器，用于固定样本的下端盖，连接下连接器和下端盖的下链，第一中心位置限位机构， 第二中心位置限制机构和第一液压机构; 上夹具包括连接到测试机顶部的装载基座的上连接器，用于固定样本的上端盖，连接上连接器和上端盖的上链，第三中心位置限位机构， 第四中心位置限制机构和第二液压机构。

公开(公告)号：US11280762B2

公开(公告)日：2022-03-22

申请号：US16699130

申请日：2019-11-29

Applicant: Sichuan University ,  Chengdu University

Inventor： Huining Xu ,  Jianfeng Liu ,  Yan Wan ,  Jianliang Pei ,  Lu Wang ,  Chunping Wang ,  Qiangxing Zhang

IPC: G01N29/14 ,  G01N29/22

Abstract: A system for monitoring rock damage in deep engineering environment includes an acoustic emission sensor assembly and an acoustic emission amplifier assembly. The assemblies are mounted on a rock mechanics test system. The acoustic emission sensor clamp includes a coupling screw, as well as a clamp cover, a clamp cylinder, and a coupling panel threadedly connected in sequence. The acoustic emission amplifier assembly includes an acoustic emission amplifier, an upright column having a guide rail, a lifting support plate, and a support plate lifting oil cylinder. Additionally, an evaluation method based on acoustic emission tempo-spatial evolution laws is presented. According to the properties of acoustic emission, fractal characteristics of damage evolution processes of rock test pieces are analyzed and the relationship between stress, energy and fractal dimension in the whole process of tensile deformation damage of the rock test pieces is obtained.

公开(公告)号：US11215540B2

公开(公告)日：2022-01-04

申请号：US16396790

申请日：2019-04-29

Applicant: Chengdu University of Technology ,  Sichuan University

Inventor： Yufeng Wei ,  Jianfeng Liu ,  Lu Wang ,  Huining Xu ,  Xiaozhang Lei ,  Jianhui Deng ,  Dongjie Xue ,  Chunping Wang ,  Jianliang Pei ,  Wenxi Fu ,  Da Zheng

IPC: G01N3/02

Abstract: A loading platform for a rock mechanics test system (MTS) to realize simple and reliable connection between a high temperature and high pressure force sensor in a triaxial chamber cavity and an upper solid rigid column. The loading platform for rock mechanics test includes a master rod, a secondary rod and a stop sleeve sleeved on the master rod; the stop sleeve is provided with two corbel structures; the secondary rod is composed of a secondary rod head body and a secondary rod body; a circular magnetic block is fixed on the secondary rod to adsorb a hole alignment sleeve sleeved on the secondary rod; and the hole alignment sleeve marked with a first scale line and a second scale line.

公开(公告)号：US10006887B2

公开(公告)日：2018-06-26

申请号：US15016326

申请日：2016-02-05

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Yang Ju ,  Jianliang Pei ,  Lu Wang ,  Huining Xu ,  Yangmengdi Xu ,  Feng Dai ,  Wenxi Fu

IPC: G01N29/14 ,  G01N29/04 ,  G01N29/22

CPC classification number: G01N29/14 ,  G01N29/043 ,  G01N29/223 ,  G01N2291/0232

Abstract: An adjustable fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to install the installation bases on the fixing frame. The fixing frame is a rectangular frame, and at least a pair of opposite frame walls of four frame walls is provided with installation slots adapted to install the installation mechanisms. The installation slots positioned at different frame walls are in a same cross section of the rectangular frame. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.

公开(公告)号：US09494502B2

公开(公告)日：2016-11-15

申请号：US15015082

申请日：2016-02-03

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Yang Ju ,  Jianliang Pei ,  Lu Wang ,  Huining Xu ,  Fei Wu

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N2203/0405 ,  G01N2203/0447

Abstract: A device for fixing a rock sample, the device including: a lower clamp and an upper clamp. The lower clamp includes: a lower connector connected to a bottom loading base, a lower end cap for fixing samples, a lower chain connecting the lower connector and the lower end cap, a first spiral spring, a first central position-limit mechanism, and a second central position-limit mechanism. The lower end cap includes: a first sample fixing groove and a first connecting segment. The upper clamp includes: an upper connector connected to a top loading base, an upper end cap for fixing the samples, an upper chain connecting with the upper connector and the upper end cap, a second spiral spring, a third central position-limit mechanism, and a fourth central position-limit mechanism. The upper end cap includes a second sample fixing groove and a second connecting segment.

Abstract translation: 一种用于固定岩石样品的装置，该装置包括：下夹具和上夹具。 下夹具包括：连接到底部装载基座的下连接器，用于固定样本的下端盖，连接下连接器和下端盖的下链，第一螺旋弹簧，第一中心位置限位机构和 第二个中心位置限制机制。 下端盖包括：第一样品固定槽和第一连接段。 上夹具包括：连接到顶部装载基座的上连接器，用于固定样品的上端盖，与上连接器和上端盖连接的上链，第二螺旋弹簧，第三中心位置限制机构 ，以及第四中心位置限制机构。 上端盖包括第二样品固定槽和第二连接段。