Method for judging key influence area of natural air pressure of deep horizontal mine

Abstract

The invention discloses a method for judging a key influence area of natural air pressure of a deep horizontal mine. The method comprises the following steps: a, analyzing sensitivity of branch air quantity to natural air pressure; b, judging a key influence area of the natural air pressure according to the tested sensitivity; b1, testing the sensitivity of the natural air pressure; b2, performing data processing; b3, analyzing the sensitivity of the natural air pressure; and b4, confirming judgment principles of the key influence area of the natural air pressure. The method is based on basic data which are tested on site and theoretical research on the sensitivity of a branch air path, and the distribution range of the key influence area of the natural air pressure is obtained by using a qualitative and quantitative analysis method; on the basis of an inverted ventilation generation reason, conditions of possible ventilation stop or even inverted ventilation in the area can be obtained; and by adopting the method, the natural air pressure of the deep mine can be reasonably controlled and utilized, the ventilation energy consumption is reduced, great significances in improving the operation stability and the economical efficiency of a mine ventilation system are achieved, and moreover, certain popularization values and application prospects can be achieved.

Description

technical field [0001] The invention relates to a method for judging key areas affected by natural wind pressure in deep horizontal mines, belonging to the field of mine ventilation. Background technique [0002] The natural wind pressure of deep mining mines often has the characteristics of large variation with seasons and obvious influence on mine ventilation system, which is an important factor affecting the stability of mine ventilation system, mine safety production and high production efficiency. According to the characteristics of natural wind pressure in deep mining mines, starting from the principle, process and influencing factors of natural wind pressure, the degree of influence of different influencing factors, the change law of mine natural wind pressure and the influence on mine ventilation system are studied, and the judgment is made. Out of the key affected areas, and then take effective measures to avoid disadvantages, minimize the negative impact of natural...

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Problems solved by technology

According to the characteristics of natural wind pressure in deep mining mines, starting from the principle, process and influencing factors of natural wind pressure, the degree of influence of different influencing factors, the change law of mine natural wind pressure and the influence on mine ventilation system are studied, and the judgment is made. Out of the key affected areas, and then take effective measures to avoid disadvantages and minimize the negative impact of natural wind pressure on the stability of mine ventilation system, abnormal gas gushing, and air leakage at working face, which is of great significance to the safe mining of minerals. There is still a lack of relevant content research and reports

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