Patents by Inventor Jianliang PEI

Jianliang PEI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10801934
    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.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: October 13, 2020
    Assignees: SICHUAN UNIVERSITY, RESEARCH INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT, PETROCHINA COMPANY LIMITED
    Inventors: Jianfeng Liu, Guosheng Ding, Zhide Wu, Qiqi Wanyan, Lina Ran, Jianliang Pei, Lu Wang, Huining Xu, Chunping Wang, Yilin Liao, Qiangxing Zhang, Xiaozhang Lei, Wenxi Fu, Min Zhang
  • Patent number: 10794869
    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.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 6, 2020
    Assignees: SICHUAN UNIVERSITY, RESEARCH INSTITUTE OF PETROLEUM EXPLORATION & DEVELOPMENT, PETROCHINA COMPANY LIMITED
    Inventors: Jianfeng Liu, Huining Xu, Jianliang Pei, Lu Wang, Chunping Wang, Xiaozhang Lei, Wenxi Fu, Jianhui Deng
  • Publication number: 20200232950
    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.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 23, 2020
    Applicants: Sichuan University, Chengdu University
    Inventors: Huining XU, Jianfeng LIU, Yan WAN, Jianliang PEI, Lu WANG, Chunping WANG, Qiangxing ZHANG
  • Patent number: 10704998
    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.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: July 7, 2020
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Huining Xu, Jianliang Pei, Chunping Wang, Jianhui Deng, Wenxi Fu, Lu Wang
  • Publication number: 20190331569
    Abstract: A rock damage mechanics test system for high temperature and high pressure deep earth environment includes an MTS triaxial test machine and a control system connected therewith. The MTS triaxial test machine is composed of a rigid frame, a high temperature and high pressure triaxial chamber, and a triaxial chamber base. The control system includes a workstation for data processing and a manual controller for controlling the workstation and a master controller. The system improves mounting and dismounting efficiency of an MTS triaxial force sensor, enhances reliability of lifting and solves the problem of aligning holes during the force sensor mounting process, thus improving the mounting efficiency.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 31, 2019
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Heping XIE, Jianliang PEI, Wenxi FU, Jianhui DENG, Zhide WU, Huining XU, Lu WANG, Fei WU
  • Publication number: 20190331570
    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.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 31, 2019
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Heping XIE, Huining XU, Jianliang PEI, Chunping WANG, Jianhui DENG, Wenxi FU, Lu WANG
  • Publication number: 20190331568
    Abstract: A triaxial high temperature and high pressure rock mechanics load test platform includes a base, a lifting seat, and an intermediate connecting seat arranged between the base and the lifting seat. A hydraulic assembly is arranged between the base and the intermediate connecting seat; the intermediate connecting seat is connected with the lifting seat by means of a group of connecting rods; the lifting seat is enclosed by a side wall and a base plate to form a receiving groove with an upward opening; and a limiting device is arranged on the side wall of the lifting seat for preventing an MTS triaxial force sensor from disengaging from a support disk.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 31, 2019
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Xiaozhang LEI, Wenxi FU, Feng DAI, Yufeng WEI, Chunping WANG, Huining XU, Jianliang PEI, Fei WU, Gang CHEN, Jinbing WEI
  • Publication number: 20190331567
    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.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 31, 2019
    Applicants: Chengdu University of Technology, Sichuan University
    Inventors: Yufeng WEI, Jianfeng LIU, Lu WANG, Huining XU, Xiaozhang LEI, Jianhui DENG, Dongjie XUE, Chunping WANG, Jianliang PEI, Wenxi FU, Da ZHENG
  • Publication number: 20190331566
    Abstract: A bearing system for rock mechanics test under high temperature and high pressure multi-field coupling includes a force sensor lifting seat and a jack. The force sensor lifting seat includes a connecting disk connected with the jack, a support disk, and an operation channel. A groove dented downwards is arranged on the connecting disk, the support disk is disposed in the groove and freely propped upon the connecting disk; through holes of the connecting disk and the support disk form a control operation channel; and a limiting device is arranged for preventing an MTS triaxial force sensor from disengaging from the support disk. A bolt hole of the force sensor can be aligned with a mounting hole on a solid steel column by rotating the connecting disk for convenient and accurate bolting.
    Type: Application
    Filed: April 28, 2019
    Publication date: October 31, 2019
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Heping XIE, Jianliang PEI, Lu WANG, Wenxi FU, Xiaozhang LEI, Dongjie XUE, Yufeng WEI
  • Publication number: 20180372690
    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.
    Type: Application
    Filed: June 25, 2018
    Publication date: December 27, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Huining XU, Jianliang PEI, Lu WANG, Chunping WANG, Xiaozhang LEI, Wenxi FU, Jianhui DENG
  • Publication number: 20180372689
    Abstract: The present invention discloses an acoustic emission monitoring and transmission system for engineering rock mass including an acoustic emission sensor and a ground workstation. The acoustic emission sensor is installed in a borehole of the monitored rock mass and transmits a received monitoring signal to the ground workstation through a cable. The acoustic emission sensor includes an acoustic emission probe, a probe installation mechanism and a transmission mechanism which transmits the probe installation mechanism with the acoustic emission probe to a setting position inside the borehole. The probe installation mechanism includes a shell connecting to the transmission mechanism and a probe sleeve for accommodating the acoustic emission probe.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 27, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Lu WANG, Chunping WANG, Jianliang PEI, Huining XU, Jun ZHENG
  • Publication number: 20180372893
    Abstract: The invention discloses a rock damage acoustic monitoring system including an acoustic emission sensor installed in a borehole of a monitored rock mass and a ground workstation. The acoustic emission sensor is composed of an acoustic emission probe and a probe installation mechanism for installing the acoustic emission probe and a transmission mechanism for transmitting the probe installation mechanism. The probe installation mechanism includes a shell, a probe sleeve installed in the shell, an end cap fixed on the upper end surface of the probe sleeve, and a piston hydro-cylinder arranged between the top of the inner wall of the shell and the end cap. The present invention realizes the control of the moving direction of the shell and the probe sleeve by the piston hydro-cylinder component and the hydraulic pump.
    Type: Application
    Filed: June 22, 2018
    Publication date: December 27, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Lu WANG, Huining XU, Jianliang PEI, Jun ZHENG, Wenxi FU, Xiaozhang LEI, Jianhui DENG
  • Publication number: 20180364379
    Abstract: The present invention discloses a microseismic monitoring system, which includes at least a microseismic sensor, a push rod set at both ends of the microseismic sensor through the first connecting mechanism for sending the microseismic sensor into a monitoring hole, a guide mechanism installed on the push rod for guiding the microseismic sensor into the monitoring hole, and a microseismic monitoring computer connecting with the microseismic sensor signal. The microseismic sensor is reusable. The first connecting mechanism can make the push rod swing relative to the microseismic sensor. The guide mechanism is a three-roller guide mechanism. The present invention can satisfy the need of monitoring different locations in monitoring holes with large depths for multiple microseismic sensors, and solve problems of effective contact coupling between the microseismic sensors and monitoring holes, which improves the accuracy of microseismic monitoring and reduces the cost of a microseismic monitoring system.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Lu WANG, Jianliang PEI, Huining XU, Wenxi FU, Xiaozhang LEI, Jianhui DENG
  • Publication number: 20180364377
    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.
    Type: Application
    Filed: June 14, 2018
    Publication date: December 20, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng LIU, Jianliang PEI, Lu WANG, Huining XU, Xiaozhang LEI, Wenxi FU, Jianhui DENG
  • Publication number: 20180340874
    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.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 29, 2018
    Applicant: Sichuan University
    Inventors: Jianfeng Liu, Jianliang Pei, Lu Wang, Huining Xu, Chunping Wang, Yilin Liao, Qiangxing Zhang, Xiaozhang Lei, Wenxi Fu
  • Patent number: 10048182
    Abstract: A rock specimen, including a rock body. The rock body includes: an upper part, an upper end face, a first circular groove, a first cylinder, a first circular body, a lower part, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with a center of the upper end face. A method for testing pure shear of the rock specimen, includes: 1) disposing the rock specimen on a test bench of a rock mechanics testing system, allowing the end face of the second circular body to contact the test bench; and 2) operating the rock mechanics testing system, loading a pressure on the rock specimen via the end face of the first cylinder and the end face of the second circular body.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: August 14, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Jianhui Deng, Lu Wang, Jianliang Pei, Yong Xiang, Linrui Li, Yu Bian, Huining Xu, Zhiwei Zhou
  • Patent number: 10048178
    Abstract: A rock specimen, including a rock body having the shape of a cylinder or a regular square prism. The rock body includes: an upper end face, a first circular groove, a first cylinder, a first circular body, a lower end face, a second circular groove, a second cylinder, and a second circular body. The first circular groove is disposed on the upper end face of the rock body and has a circle center coinciding with the center of the upper end face of the rock body. The second circular groove is disposed on the lower end face of the rock body and has a circle center coinciding with the center of the lower end face of the rock body. The outer diameter of the first circular groove is smaller than the inner diameter of the second circular groove, and the first circular groove and the second circular groove are staggered.
    Type: Grant
    Filed: October 10, 2015
    Date of Patent: August 14, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Lu Wang, Jianliang Pei, Yu Bian, Huining Xu, Yong Xiang, Fei Wu, Hang Zou, Yangmengdi Xu
  • Patent number: 10018595
    Abstract: A 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 arrange the installation bases on the fixing frame. The fixing frame is an assembled loop-shaped frame and includes between two and four frame members and corresponding fixing structures; and the frame members are assembled into an integrated loop-shaped frame by the fixing structures. 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.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 10, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Heping Xie, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang
  • Patent number: 10006887
    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.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: June 26, 2018
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Yang Ju, Jianliang Pei, Lu Wang, Huining Xu, Yangmengdi Xu, Feng Dai, Wenxi Fu
  • Patent number: 9500574
    Abstract: A rock sample fixing device with a three-jaw chuck for cyclic tension and compression testing 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.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: November 22, 2016
    Assignee: SICHUAN UNIVERSITY
    Inventors: Jianfeng Liu, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang, Yangmengdi Xu, Hang Zou