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：US11415557B2

公开(公告)日：2022-08-16

申请号：US16699123

申请日：2019-11-29

Applicant: Sichuan University ,  Chengdu University

Inventor： Jianfeng Liu ,  Yan Wan ,  Jun Zheng ,  Lu Wang ,  Dongjie Xue ,  Chunping Wang ,  Qiangxing Zhang

IPC: G01N29/14 ,  G01N29/22

Abstract: A tempo-spatial evolution test system for rock breaking in deep and complex environment includes an acoustic emission sensor assembly and an acoustic emission amplifier assembly that are arranged on a rock mechanics test system. A triaxial cavity coupling bracket is arranged on an outer wall of the triaxial cavity and between two sets of acoustic emission sensor assemblies. The triaxial cavity coupling bracket includes a plate-shaped bracket, two sickle-shaped brackets, and at least three bracket bolts, which can be tightly wrapped on the outer wall of the triaxial cavity. A lateral side of the plate-shaped bracket vertically fixes two guide columns. The acoustic emission amplifier assembly is arranged between the two guide columns and is located above the plate-shaped bracket, and the acoustic emission amplifier assembly is connected to the acoustic emission sensor assembly through a signal line.

公开(公告)号：US10989637B2

公开(公告)日：2021-04-27

申请号：US16396689

申请日：2019-04-28

Applicant: Sichuan University

Inventor： Jianfeng Liu ,  Heping Xie ,  Jianliang Pei ,  Lu Wang ,  Wenxi Fu ,  Xiaozhang Lei ,  Dongjie Xue ,  Yufeng Wei

IPC: G01N3/02 ,  F16C19/10 ,  F16C19/52 ,  F16C35/06 ,  G01N3/12 ,  G01N3/18

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.