Air pressure blasting device used for simulating excavation with tunnel drill blasting method

A technology of drilling and blasting and air pressure, which is applied in the field of rock mechanics model test equipment, can solve the problems of no basis for similar indicators and the difficulty of preparing small equivalent explosives, etc., and achieve the effect of simple structure, simple operation and convenient use

Active Publication Date: 2017-02-15
INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are relatively few similar simulation studies on drilling and blasting excavation at home and abroad. The main method is to use small-yield blasting. How

Method used

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  • Air pressure blasting device used for simulating excavation with tunnel drill blasting method
  • Air pressure blasting device used for simulating excavation with tunnel drill blasting method
  • Air pressure blasting device used for simulating excavation with tunnel drill blasting method

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Embodiment

[0033] Example: such as Figures 1 to 3 As shown, the pneumatic blasting device excavated by the simulation tunnel drilling and blasting method of the present embodiment includes a self-pressurized liquid nitrogen tank 1, a console 2 and two groups of blasting pipe modules 3, and the above console 2 has two groups of SMC high pressure The switch 4 and the control module, the above-mentioned control module is respectively connected to two groups of the above-mentioned SMC high-pressure pressure switches 4 through lines, and is used to control the opening and closing of the SMC high-pressure switch 4 respectively, and the gas outlet of the above-mentioned self-pressurized liquid nitrogen tank 1 is respectively Two sets of SMC high-pressure pressure switches 4 are connected, and the above-mentioned two sets of SMC high-pressure pressure switches 4 are respectively connected to two sets of the above-mentioned blasting tube modules 3 through high-pressure hoses, and each set of the ...

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Abstract

The invention relates to an air pressure blasting device used for simulating evaluation with a tunnel drill blasting method. The air pressure blasting device comprises a self-boosting liquid nitrogen container, a control panel and two blasting-pipe modules, two SMC high-pressure pressure switches and a control module are arranged in the control panel, the control module is connected with the SMC high-pressure pressure switches respectively through a circuit to control opening and closing of the SMC high-pressure pressure switches, the air outlet of the self-boosting liquid nitrogen container is connected with the SMC high-pressure pressure switches respectively through a high-pressure hose, the SMC high-pressure pressure switches are respectively communicated with the blasting-pipe modules through the high-pressure hose, and air blasting holes are formed in the blasting-pipe modules. The air pressure blasting device has the advantages of simpleness in structure and convenience in use, construction procedure of evaluation with the tunnel drill blasting method can be accurately simulated, simpleness in operation is achieved, safety and reliability in tunnel simulation test process is guaranteed, and the air pressure blasting device can be widely used in similar simulation test of various small-equivalent tunnel blasting excavation.

Description

technical field [0001] The invention belongs to the technical field of rock mechanics model test equipment, and in particular relates to a pneumatic blasting device for simulating tunnel excavation by drilling and blasting. Background technique [0002] So far, there are seven tunnels with a length of more than 10km that have been built or are being built in my country. Due to the long distance and complex geological conditions, the drilling and blasting method has the advantages of low investment, compact equipment, adaptability to various geological conditions, fast, maneuverable and flexible, so most of these tunnels are constructed using the traditional drilling and blasting method. Starting from the actual situation in our country, the drilling and blasting method will still be the mainstream of tunnel construction in our country for a long time to come. Therefore, it is of great scientific value and practical significance to continuously improve the drilling and blast...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 周辉程广坦朱勇陈珺张传庆胡大伟杨凡杰卢景景狄超然
Owner INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
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