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Geomechanical model test based blasting simulation test device and method

A simulation test and model test technology, which is applied in the direction of measuring devices, using stable tension/pressure to test the strength of materials, scientific instruments, etc., can solve the problem that the test device is small in size, cannot realize true three-dimensional loading, and does not consider the impact of blasting effect And other issues

Inactive Publication Date: 2017-12-01
ANHUI UNIV OF SCI & TECH
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Problems solved by technology

[0008] The problem to be solved by the present invention is: the existing blasting simulation test uses isotropic homogeneous materials for repeated tests, and the size of the test device is small, it cannot realize true three-dimensional loading, and no consideration is given to geological structure, joints and structural planes and weak interlayer etc. on the blasting effect

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  • Geomechanical model test based blasting simulation test device and method
  • Geomechanical model test based blasting simulation test device and method
  • Geomechanical model test based blasting simulation test device and method

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[0028] Example: such as Figure 1-Figure 8 As shown, the large-scale three-dimensional blasting simulation test device mainly includes hydraulic loading systems (1) and (2), and a test box (4); the data monitoring sensor wiring port (3) is arranged in the test box (4) Upper right side: the micro-dose controlled blasting technology, filling the blasting hole with RDX (17) and connecting the detonator (18), sealing the hole with yellow mud, and detonating the detonator through the detonator to carry out the blasting simulation test.

[0029] In this embodiment, by analyzing the control effect of tectonic movement on the development of geological weak-faced coal body, the structural belt area where the coal seam structure is damaged is selected as the test model for blasting to disturb the geological weak-faced coal body, and the geological coal body test model of the structural belt ( 5). Coal powders of different particle sizes were used as aggregates, and sodium humate aqueou...

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Abstract

On the basis of comprehensive reference blasting simulation test device and geotechnical engineering multifunctional test device, a set of large-scale true three-dimensional blasting simulation test device based on geomechanics model test is proposed. The test device is mainly composed of a reaction force frame (1), a hydraulic jack (2), a test box (4) and its auxiliary data monitoring equipment. The organic combination of geomechanics model test and blasting simulation test is realized by establishing geological structure coal rock mass test model (5), adopting micro-dose control blasting charge (6), and matching data monitoring sensor and interface (3). The test device realizes true three-dimensional hydraulic loading, and integrates coal melting body, rock mass and complex geological structure, and can realize blasting simulation tests of complex geological structures such as different joints, structural planes, weak interlayers, faults, and folds under different stress states. , which provides a new train of thought and test method for the study of safe and efficient blasting theory in geological structural belts.

Description

Technical field: [0001] The invention relates to a blasting simulation test device and a test method, in particular to a test method combining a geomechanics model test with a large-scale true three-dimensional blasting simulation test. Background technique: [0002] With the continuous increase of coal mine mining intensity, medium and deep hole controlled blasting technology is more and more widely used in coal mine production, such as low permeability coal seam anti-permeability to improve gas extraction rate, hard roof forced caving, thick coal seam hard roof Fully mechanized coal caving mining, blasting excavation and coal mining in Shimen, etc. [0003] However, the vibration generated by blasting will have a strong impact on the coal and rock mass, and the rapid redistribution of stress will promote the deterioration of coal and rock and easily induce gas dynamic disasters. When the blasting operation disturbs the coal rock mass in the underground geological structur...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12G01N3/313
CPCG01N3/12G01N3/313G01N2203/0048G01N2203/0066G01N2203/0202
Inventor 高魁刘泽功刘健
Owner ANHUI UNIV OF SCI & TECH
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