Experimental device for normal disturbance induced rock mass shear fracture

A shear fracture and experimental device technology, applied in the field of experimental mechanics research, can solve problems such as inability to simulate dynamic disturbance or disturbance capability

Pending Publication Date: 2020-12-29
WUHAN UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0003] At present, most of the indoor simulation experiments on deep rock mass stay in the static or quasi-static stage, unable to simulate dynamic disturbance or the disturbance capability is limited. For example, servo testing machines are mostly limited to low-frequency micro-disturbance due to technical reasons, and cannot reproduce complex stress states. The rock mass shear fracture disaster induced by strong external disturbance

Method used

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  • Experimental device for normal disturbance induced rock mass shear fracture
  • Experimental device for normal disturbance induced rock mass shear fracture
  • Experimental device for normal disturbance induced rock mass shear fracture

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Embodiment Construction

[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0062] like figure 1 As shown, the experimental device for normal disturbance induced rock mass shear fracture provided in this embodiment includes:

[0063] The SHPB device is used to provide impact loads for the specimen 4;

[0064] The shearing device 20 is used to provide normal stress and tangential shear stress to the test piece 4;

[0065] The shearing device 20 is located between the incident rod 18 and the transmission rod 19 of the SHPB device, and...

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Abstract

The invention relates to the technical field of experimental mechanics research, and particularly relates to an experimental device for normal disturbance induced rock mass shear fracture. The experimental device comprises an SHPB device and a shearing device, wherein the SHPB device is used for providing impact load for a test piece; the shearing device is used for providing normal stress and tangential shearing stress for the test piece; and the shearing device is located between an incident rod and a transmission rod of the SHPB device and mounted on the outer surface of the test piece. Theexperimental device can reproduce rock mass shear fracture of rock mass in a complex stress state induced by external disturbance.

Description

technical field [0001] The invention relates to the technical field of experimental mechanics research, in particular to an experimental device for normal disturbance-induced rock mass shear fracture. Background technique [0002] With the rapid development of the country's economy, the demand for resources is increasing day by day, and a series of major underground projects have gradually expanded to the deep. The surrounding rock of deep engineering will be in a special harsh geological environment of "three highs and one disturbance" (ie high ground stress, high ground temperature, high karst water pressure and engineering disturbance). Among them, high ground stress and engineering disturbance are important factors that induce many engineering geological disasters, such as fault-slip rockburst and fault-slip earthquake. The occurrence of these geological disasters has the characteristics of unpredictability, suddenness and strong destructiveness, which seriously threate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/24G01N3/30G01N3/02
CPCG01N3/02G01N3/24G01N3/30G01N2203/001G01N2203/0025G01N2203/0048G01N2203/0258G01N2203/0676G01N2203/0682
Inventor 罗忆郑世龙王刚黄俊红李新平李陈
Owner WUHAN UNIV OF TECH
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