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Testing method of polyphase coupling creep of fragmented rock body and equipment thereof

A creep test and rock mass technology, applied in the direction of measuring devices, soil material testing, material inspection products, etc., can solve problems such as safety accidents and breakage

Inactive Publication Date: 2005-10-26
CHINA UNIV OF MINING & TECH +1
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  • Abstract
  • Description
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Problems solved by technology

[0002] The rock subsidence caused by mining has seriously changed the engineering geological properties of the overlying rock, forming the condition of mining collapse and fractured rock mass; even after a long period of natural compaction after the end of mining, the surface subsidence process has basically stopped, and the underground residual cavity caused by mining Phenomena (problems) such as delamination, cracks, and under-compacted rock masses in gobs, and saturated water in voids still exist. Under the effects of various internal and external factors, such as ground stress, groundwater, and ground building loads, the relative balance The state will be broken again and cause a security incident

Method used

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  • Testing method of polyphase coupling creep of fragmented rock body and equipment thereof
  • Testing method of polyphase coupling creep of fragmented rock body and equipment thereof

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Embodiment Construction

[0014] An embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0015] The multi-phase coupled creep test method of broken rock mass in the present invention adopts a test system combining a multi-stage lever force transmission device, a loading device and a compression creep device, and uses a collector produced by Chongqing University to cooperate with a virtual signal theory system for signal analysis. Through the signal collector and the position of the adjustment weight, the load creep test is carried out on the broken rock mass. The ratio of load transmission is related to the set number of lever series or rows. The more series, the greater the transmission ratio. After loading, pass The signal output value of the force sensor 20, adjust the weight to achieve the required load; record the initial value of the displacement sensor 10 and the initial value of the rosette 29; when the lever is deflected, adjust the lev...

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Abstract

The invention is the multi-phase couple creep testing method of the broken rock and the equipment. The invention adopts the multi-phase lever driving device, the loading device connecting the driving device and the compressing device under the loading device. The lever loading makes the beam wind the hinge of the framework; add the charge conveyed by the lever system on the samples through the adjusting screw, the force sensor, the ball hinge pressing head and the infiltrator; implement worm misshaping test to the sample in the high-low temperatures. The invention is stable, simple, small, convenient and precise.

Description

technical field [0001] The invention relates to a broken rock mass multiphase coupled creep test method and a device thereof, and is especially suitable for compression creep, solid-liquid coupling and solid-gas coupled penetration tests of broken rock mass. Background technique [0002] The rock subsidence caused by mining has seriously changed the engineering geological properties of the overlying rock, forming the condition of mining collapse and fractured rock mass; even after a long period of natural compaction after the end of mining, the surface subsidence process has basically stopped, and the underground residual cavity caused by mining Phenomena (problems) such as delamination, cracks, and under-compacted rock masses in gobs, and saturated water in voids still exist. Under the effects of various internal and external factors, such as ground stress, groundwater, and ground building loads, the relative balance The state will be broken ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/28
Inventor 马占国张帆缪协兴郭广礼
Owner CHINA UNIV OF MINING & TECH
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