公开(公告)号：US20240068919A1

公开(公告)日：2024-02-29

申请号：US18464364

申请日：2023-09-11

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Lu WANG ,  Yougang CAI ,  Lina RAN ,  Chunping WANG ,  Gan FENG ,  Hua LI ,  Xiangchao SHI ,  Jianliang PEI ,  Huining XU ,  Xiaozhang LEI ,  Jianhui DENG

IPC: G01N3/12 ,  G01N3/16

CPC classification number: G01N3/12 ,  G01N3/165 ,  G01N2203/0017 ,  G01N2203/0037 ,  G01N2203/0206 ,  G01N2203/0256

Abstract: A rock direct tensile test platform suitable for all material test machines includes a support frame. A top of the support frame is fixed with a top plate, and a bearing plate is provided above the top plate. The bearing plate is provided with a plurality of vertical force transferring rods. The force transferring rods vertically penetrate through the top plate and have a sliding fit with the top plate. Lower ends of the force transferring rods are provided with a tensile base. A top of the tensile base is provided with a lower clamp holder. A bottom of the top plate is provided with an upper clamp holder, and a clamp center of the upper clamp holder coincides with a clamp center of the lower clamp holder.

公开(公告)号：US20200232950A1

公开(公告)日：2020-07-23

申请号：US16699130

申请日：2020-03-30

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：US20190331568A1

公开(公告)日：2019-10-31

申请号：US16396797

申请日：2019-04-29

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Xiaozhang LEI ,  Wenxi FU ,  Feng DAI ,  Yufeng WEI ,  Chunping WANG ,  Huining XU ,  Jianliang PEI ,  Fei WU ,  Gang CHEN ,  Jinbing WEI

IPC: G01N3/06 ,  G01N3/10 ,  G01L5/00

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.

公开(公告)号：US20240068991A1

公开(公告)日：2024-02-29

申请号：US18455957

申请日：2023-08-25

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

Inventor： Mancang LIU ,  Xiaosong QIU ,  Jianfeng LIU ,  Yunhe SU ,  Zhide WU ,  Lu WANG ,  Shujuan XU ,  Xin LAI ,  Jianxiong YANG ,  Huining XU ,  Jianliang PEI ,  Jinbing WEI

IPC: G01N29/14 ,  G01N3/04 ,  G01N29/28

CPC classification number: G01N29/14 ,  G01N3/04 ,  G01N29/28 ,  G01N2203/0017 ,  G01N2203/0658

Abstract: A clamping triaxial seepage and acoustic coupling rock tensile testing machine includes a sample and a scaffold-type tensile testing device. The scaffold-type tensile testing device has an upper chuck and a lower chuck. The upper chuck has an acoustic transmitting channel, one end of which communicating with the outside, and the other end of which having an acoustic transmitting probe. The lower chuck has an acoustic receiving channel, one end of which communicating with the outside, and the other end having acoustic receiving probe. An upper end face of the sample has with a seepage outflow hole while the upper chuck has a seepage outflow channel connected with the seepage outflow hole. A lower end face of the sample has a seepage inflow hole while the lower chuck has a seepage entry channel is connected with the seepage inflow hole.

公开(公告)号：US20160231214A1

公开(公告)日：2016-08-11

申请号：US15015086

申请日：2016-02-03

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Jianliang PEI ,  Huining XU ,  Lu WANG ,  Zhiwei ZHOU ,  Yue ZHUO ,  Feng DAI ,  Wenxi FU

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, a second central position-limit mechanism, and a first hydraulic 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, fourth central position-limit mechanism, and a second hydraulic 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， 第二中心位置限制机构和第一液压机构。 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 ，第四中心位置限制机构和第二液压机构。 上端盖包括：第二样品固定槽和第二连接段。

公开(公告)号：US20160231212A1

公开(公告)日：2016-08-11

申请号：US15013988

申请日：2016-02-02

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Yang JU ,  Yong XIANG ,  Huining XU ,  Yangmengdi XU ,  Hang ZOU ,  Zhiwei ZHOU ,  Yue ZHUO

IPC: G01N3/08

CPC classification number: G01N3/08 ,  G01N3/04 ,  G01N33/24 ,  G01N2203/0017 ,  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。

公开(公告)号：US20190331570A1

公开(公告)日：2019-10-31

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: G01N3/12 ,  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：US20190331567A1

公开(公告)日：2019-10-31

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：US20180372689A1

公开(公告)日：2018-12-27

申请号：US16015218

申请日：2018-06-22

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Lu WANG ,  Chunping WANG ,  Jianliang PEI ,  Huining XU ,  Jun ZHENG

IPC: G01N29/14 ,  G01V1/52 ,  G01N29/28 ,  E21B49/00 ,  E21B47/01 ,  E21C39/00

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.

公开(公告)号：US20160231287A1

公开(公告)日：2016-08-11

申请号：US15016354

申请日：2016-02-05

Applicant: Sichuan University

Inventor： Jianfeng LIU ,  Heping XIE ,  Yang JU ,  Jianliang PEI ,  Huining XU ,  Lu WANG

IPC: G01N29/14

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

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.

Abstract translation: 一种用于岩石破坏测试的声发射测试传感器的固定装置，该装置包括：固定框架; 安装基座分别操作以容纳声发射测试传感器; 固定组件，用于将声发射测试传感器固定在安装基座中; 以及安装机构，其操作以将安装基座布置在固定框架上。 固定框架是组装的环形框架，包括两个和四个框架构件和相应的固定结构; 并且框架构件通过固定结构组装成集成的环形框架。 每个安装基座都是圆筒结构。 气缸结构包括：对应于每个声发射测试传感器的外边缘的空腔，以及包括用于引出每个传感器的导线的间隙的壁。