公开(公告)号：US20180275034A1

公开(公告)日：2018-09-27

申请号：US15558958

申请日：2017-03-28

Applicant: NORTHEASTERN UNIVERSITY

Inventor： Xia ting FENG ,  Xi wei ZHANG ,  Rui KONG ,  Cheng xiang YANG ,  Dong hui MA ,  Shuai PENG ,  Lei SHI ,  Zhi bin YAO ,  Jun TIAN

IPC: G01N3/307

CPC classification number: G01N3/307 ,  G01M7/08 ,  G01N2203/0055 ,  G01N2203/0067 ,  G01N2203/0098 ,  G01N2203/0232

Abstract: A high-pressure true triaxial test apparatus with capacity of low-frequency disturbance and high-speed impact includes static and dynamic loading frames, four static loading actuators, two dynamic loading actuators and an SHPB mechanism, wherein all actuators are connected with a hydraulic station system; a hollow way is formed in the axial center of each piston shaft of the dynamic loading actuators, a dynamic pressure sensor adopting a hollow ring structure is mounted at the end part of each piston shaft, and the SHPB mechanism applies a high-speed impact load on a rock sample through the dynamic pressure sensors respectively; and the dynamic loading actuators adopt a static pressure oilway balance support sealing manner and are connected with the hydraulic station system, each oilway is provided with an energy accumulator, and flow is increased by the servo valves to drive pistons to perform dynamic response.