Combined support shield type comprehensive mining method
A combined support and mining method technology, which is applied in ground mining, mine roof support, mining equipment, etc., can solve the hidden dangers left by mine pillar loss and goaf, and the wall caving method has low pillar bearing capacity and is not suitable for non-coal mines Explosion mining and other problems, to achieve good impact damage resistance, on-site follow-up movement and long-term repeated use, reliable and convenient, and easy on-site operation
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[0014] Mining method: starting from the middle section of the transport roadway or connecting roadway, along the ore body inclination or pseudo-inclination direction, close to the ore body floor and excavate the mining standard roadway uphill, and temporarily support it according to the stability of the surrounding rock; , install the combination bracket; if the two operation lines are pulled apart at the same time, then install double rows of combination brackets; line direction; the control of the width of the empty roof of the mining line: the width of the mining face of the mining line should generally be controlled within 4 meters, and the maximum distance between the combined support line and the stable mine wall should be controlled within 8 meters or by the surrounding rock of the roof. Stability is determined; when the length of the working line is too large, the combined support cable should be divided into multiple segments and followed up one by one to reduce the ti...
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