Three-dimensional physical model test device

A model test device and three-dimensional physical technology, which are applied in soil material testing, material inspection products, etc., can solve the problems of inability to realize inclined mining, inconsistency in the excavation process, and large gaps, and achieve rock mass excavation. The simulation test results are accurate and reliable, the overall structure is firm, and the inclination angle is suitable.

Active Publication Date: 2016-06-22
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual excavation is time-consuming and laborious, and the effect of roadway formation is not good. The method of pre-embedded cylinders is divided into taking out the cylinders before loading to form a roadway and pushing out the cylinders to form roadways during the loading process. The former is far from the actual excavation process on site. Large, the latter is difficult to achieve when the stress is high and multiple roadways are interlaced
In the 3D simulation of coal mining face mining, manual and simple mechanical excavation are basically used, which is inconsistent with the actual excavation process, and it is impossible to realize coal cutting and mining with a certain inclination angle.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Example 1: Roadway Excavation Simulation

[0061] The method for simulating roadway excavation by using the above-mentioned three-dimensional physical model test device comprises the following steps:

[0062] Step 1: Construct the reaction frame A0 and build the model device:

[0063] To construct the reaction force frame A0, a plurality of parallel rectangular large steel plates A6 with a horizontal plane angle α are arranged on the cubic frame surface A11, and a plurality of parallel rectangular small steel plates A7 are arranged between two rectangular large steel plates A6.

[0064] A rock mass model A12 is set in the reaction frame A0, and a vertical loading system A15, a horizontal front-back loading system A14, and a horizontal left-right loading system A13 are installed.

[0065] Set the vertical loading system A15, the horizontal front-back loading system A14, and the horizontal left-right loading system A13 to load pressure on the rock mass model A12.

[006...

Embodiment 2

[0075] Example 2: Simulation of coal seam horizontal and inclined mining

[0076] The method for simulating horizontal coal seam mining by using the above-mentioned three-dimensional physical model test device comprises the following steps:

[0077] Steps 1-3: Consistent with the simulated roadway excavation in Embodiment 1. Until the excavation of the first roadway is completed.

[0078] Step 4: Remove the next small rectangular steel plate A7 adjacent to the removed first small rectangular steel plate A7.

[0079] Step 5: Repeat steps 2 to 4 to complete the working face advancement simulation.

[0080] In this embodiment, the adjacent small rectangular steel plates A7 are sequentially removed, so that a full recovery simulation can be performed on a simulated working face between two large rectangular steel plates A6 on the cube frame surface A11.

[0081] If necessary, the above steps can be repeated for another row of rectangular small steel plates A7 between the other ...

Embodiment 3

[0083] Embodiment 3: mining simulation of metal ore caving method

[0084] Steps 1-4: Consistent with the simulated roadway excavation in Embodiment 1; until the excavation of the first roadway is completed. The following steps are then taken to simulate metal ore caving mining production:

[0085]Step 5: Manipulate the vertical loading system A15, the horizontal front-back loading system A14, and the horizontal left-right loading system A13, control and generate vibration, and simulate an on-site blasting of a working face.

[0086] The jacks that control each loading system cooperate with each other to simulate an on-site blasting, which is the "ore falling" in actual production.

[0087] Step 6: directly discharge the rock mass model A12 fragments formed by the vibration.

[0088] The rock mass model A12 fragments formed by the vibration are the "ores" that have collapsed in the simulation of actual production; after the "ores" are discharged, this simulation is completed...

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Abstract

The invention relates to a three-dimensional physical model test device.The exterior of the device is a reaction frame.According to arrangement on at least one cubic framework face of the reaction frame, at least two large rectangular steel plates parallel with each other are arranged between opposite stand columns, and at least one row of small rectangular steel plates are arranged between every two adjacent large rectangular steel plates; reaction frame panels are arranged on the other framework side faces of the reaction frame; a rock mass model is arranged in the reaction frame; a vertical loading system, a horizontal left-and-right loading system and a horizontal front-and-back loading system are arranged between the rock mass model and the reaction frame.When a simulation test is conducted through the device, excavation can be directly performed manually or simulated through a robot, and automatic excavation of a simulated roadway and working face stoping are achieved.By means of the device, a reliable test means can be provided for accurately revealing the surrounding rock evolution law in roadway excavation and working face stoping.

Description

technical field [0001] The invention belongs to the technical field of a three-dimensional physical model test device for rock mechanics, and in particular relates to a three-dimensional physical model test device. Background technique [0002] With the development of the social economy and the needs of the national economy, the construction of underground mines and tunnels has shifted to the deep, and the research focus of rock mechanics has increasingly shifted to the underground. In the fields of mining engineering and hydropower engineering, the length, span and buried depth of underground roadways are also increasing. Therefore, the stress adjustment process and stability of the surrounding rock caused by roadway excavation under complex geological conditions become more important, while on-site surrounding rock monitoring requires more manpower, material and financial resources, and the workload is large and the cycle time is large. However, the change and stress distr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 周辉胡明明张勇慧张传庆高阳卢景景黄磊魏天宇
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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