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Mechanical rock breaking test platform confining pressure device

A test platform and rock-breaking technology, applied in the field of rock test machinery, can solve the problem of inability to simulate the state of rock on the face of the rock under in-situ stress, etc., and achieve the effect of simple and feasible device design and strong operability

Active Publication Date: 2015-08-19
BEIJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are three similar testing machines in foreign countries, but none of these testing machines can simulate the state of the rock under the ground stress on the face of the tunnel.

Method used

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  • Mechanical rock breaking test platform confining pressure device
  • Mechanical rock breaking test platform confining pressure device
  • Mechanical rock breaking test platform confining pressure device

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] As shown in the figure, in the confining pressure device of the mechanical rock-breaking test platform in the present invention: the electric control system 1 is connected to the hydraulic station 2, and the hydraulic station 2 is connected to the hydraulic cylinder 6 placed in the sample box 3 through a hydraulic hose. The electric control system 1 controls the hydraulic cylinder 6 to apply an adjustable confining pressure to the sample 4;

[0017] It is stipulated that the side away from the sample 4 is the outer side, and the side close to the sample 4 is the inner side. Three hydraulic cylinders 6 are placed on the cylinder support 10 in groups of three. There are two groups in total. Any adjacent two walls in the sample box 3 are arranged close to each other. Each group of hydraulic cylinders 6 can exert a maximum pressure of 20 MPa on the sample....

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Abstract

A mechanical rock breaking test platform confining pressure device belongs to the technical field of machinery of soil tests, and comprises three parts including a control system, a hydraulic system and a mechanical part, wherein the mechanical part serves as a main body, and is a steel sample box, and test samples and hydraulic oil cylinders are placed in the steel sample box; the hydraulic system is used for applying pressure to the samples, and comprises six hydraulic oil cylinders and one hydraulic station; and the control system is used for controlling adjustable pressure applied to the samples by the hydraulic system. Samples with different lithological characters can be replaced in the test.

Description

technical field [0001] The invention is a mechanical rock-breaking test platform confining pressure device, which belongs to a component of the mechanical rock-breaking test platform. When used together with the mechanical rock-breaking test platform, it can apply two-way confining pressure to the sample, simulating the impact of rock-breaking mechanical excavation. The state of surface rock mass subject to ground stress can be used not only for excavation research of tunnel boring machines or other excavating machines, but also for rock intrusion test research under one-way (or two-way) confining pressure, and belongs to the technical field of rock test machines. Background technique [0002] Since the 1970s and 1980s, the full-face rock boring machine has achieved unprecedented development. Because of its fast construction speed, friendly working environment, economical and safe construction, etc., it has attracted more and more attention from the engineering circles at hom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00G01N3/02
Inventor 龚秋明李真王起新
Owner BEIJING UNIV OF TECH
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