doi:10.16186/j.cnki.1673-9787.2020.4.1

Received:2019/11/22

Revised:2020/01/10

Published:2020/07/15

Analysis on the height of water flowing fractured zone under sliding structure inGaocheng coal mine

SONG Changsheng, HAO Yu, SUN Hengshan

School of Energy Science and Engineering， Henan Polytechnic University ，Jiaozuo 454000 ， Henan，China

Abstract:In order to study the height of water flowing fractured zone in different types of roof under sliding structure in Gaocheng mining mine， based on the geological mining conditions of the Gaocheng coal mine， Grounder Modeling System（ GMS） was used to digitize the overlying strata information of mining district 25 ， and the 3D geological model was generated after interpolation by the algorithm to explain the occurrence characteristics of the sliding structure. Based on the geological model， the height of water flowing fractured zone of different roof types was studied by the calculation method of rock stratum stretch rate， numerical simulation， etc. The results showed that the height of water flowing fractured zone under the sliding structure was lower than that of the conventional geological conditions， the occurrence of sliding structure was in form of large thickness and fragile. After the coal seam was mined out， the sliding structure zone was mostly deformed， and it was not easy to have water flowing fracture from bottom to top， with a certain degree of water insulation. Under the condition of sliding structure， it was necessary to consider influence factor of the mechanical properties of roof strata， when calculating the height of water flowing fractured zone based on the formula in “standard in mine production”.

Key words:sliding structure;anti-dip of overlying strata;GMS;3DEC;water flowing fractured zone;Gaocheng

告成矿滑动构造下导水裂隙带高度分析_宋常胜.pdf