Mechanical room and pillar mining method for gentle dip and medium thickness orebody

Abstract

The invention relates to a mechanical room and pillar mining method for a gentle dip and medium thickness orebody. The mechanical room and pillar mining method comprises the following several steps ofdividing the gentle dip and medium thickness orebody into a plurality of panels in the strike, arranging four layered mining roadways from top to bottom in each panel, enabling a heading machine to enter the bottom of each panel through a trackless equipment linking taxiway from a slope gradient outside the panels, developing a slope gradient inside each panel along the trackless equipment linking taxiway, and enabling the slope gradients in the panels to communicate with the layered mining roadways; enabling the heading machine to perform mining from the intersection of the slope gradients of the panels and the layered mining roadways to the direction of isolated ore pillars along the uppermost layered mining roadway in a manner of being from top to bottom, and firstly mining ore rooms and then mining ore pillars; remaining one ore room or ore pillar while mining one ore room or ore pillar, and repeating the operation until the ore rooms and the ore pillars are arranged in a fishboneshape; and after the heading machine completes mining, inspecting top boards, and performing top board supporting in a supporting manner of prestressed resin anchor rods and slotted screens. According to the mechanical room and pillar mining method disclosed by the invention, the heading machine is used as orebody mining equipment for the first time, so that the carrying problem during ore exploitation by a room and pillar mining method is solved, and the problems of top board management and operation safety for a tall and large open stope are solved.

Description

technical field [0001] The invention belongs to the technical field of mining, in particular to a mechanical room-and-pillar mining method for a gently inclined medium-thick ore body. Background technique [0002] The mining of gently inclined medium-thick ore bodies has always been a major problem in underground mining technology at home and abroad due to the particularity of its occurrence and occurrence conditions. Due to the inherent mining technical conditions of the gently inclined medium-thick ore body, such as: the inclination angle is small, the caving ore cannot be completely released by its own weight; the ore must be transported in the stope, because the thickness of the ore body is large, personnel and equipment It is difficult to guarantee safety when working in an exposed empty field. From the perspective of the mining situation of gently inclined medium-thick ore bodies at home and abroad, according to the specific mining technical conditions, chassis funnel...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a mining method for gently inclined medium-thick ore bodies with simple technology and less mining and cutting engineering, so as to solve the problem of stope transportation and roof management and operation of high and large open fields in the mining of gently inclined medium-thick ore bodies safe question

Images