Study on Constitutive Equation of Pressure Relief Blasting of High Geo-stress Tunnel

WEI Meng; SU Tao; ZHANG Ningxin

Safety in Coal Mines > 2018 > 49(10): 207-212.

WEI Meng, SU Tao, ZHANG Ningxin. Study on Constitutive Equation of Pressure Relief Blasting of High Geo-stress Tunnel[J]. Safety in Coal Mines, 2018, 49(10): 207-212.

Citation:

WEI Meng, SU Tao, ZHANG Ningxin. Study on Constitutive Equation of Pressure Relief Blasting of High Geo-stress Tunnel[J]. Safety in Coal Mines, 2018, 49(10): 207-212.

Citation:

WEI Meng, SU Tao, ZHANG Ningxin. Study on Constitutive Equation of Pressure Relief Blasting of High Geo-stress Tunnel[J]. Safety in Coal Mines, 2018, 49(10): 207-212.

Study on Constitutive Equation of Pressure Relief Blasting of High Geo-stress Tunnel

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Published Date: October 19, 2018

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Abstract

Abstract

In order to reduce the adverse effects of high geostress on the construction and operation of the engineering, based on the practice of engineering and the research experience of relevant scholars, the constitutive equation of pressure relief blasting is obtained through theoretical deduction. The pressure relief blasting constitutive equation is compiled into computer language and calculated by Matlab software. The results of the analysis are as follows: the pressure relief area of pressure relief blasting is not more than the radius of vibration area (2.73 m), and the effect of pressure relief at a radius of two times of crack zone (1.60 m) is mutated.
- high geostress,
- pressure relief blasting,
- constitutive equation,
- crack area,
- vibration zone

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