Step-by-step full mining method

• Main Authors: HE FEIFAN, ZANG PENG, ZHONG JIU'AN, FAN ZHENG, LUO YUPENG, WANG BIN
• Format: Patent
• Language: Chinese; English
• Published: 24.03.2020
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; MINING OR QUARRYING

The invention discloses a step-by-step full mining method. The step-by-step full mining method comprises the following three steps which respectively are natural mining, channel blocking and re mining, wherein, natural mining is carried out through conventional and normal mining methods, so that some areas that can not be mined and are not fully permeated are formed and are called non-permeate areas, seepage channels are formed in exploitable areas; after the natural mining is completed, the channels are blocked, cementitious materials are injected through a leaching liquid inlet, the cementitious materials are solidified in the seepage channels, so that most or all of the channels before the leaching liquid are blocked; and finally, mining is carried out again, the leaching liquid is injected again through the leaching liquid inlet, the leaching liquid can not be able to perform flowing through the previous seepage channels, but can only flow in the non-permeate areas, new seepage channels are formed, theref