Open AccessControl Technology of Overlying Roadway in 7m Goaf
Author(s) -
Cong Liu,
Zhennan Liu,
Li Ji,
Meng Wang,
Yunhai Cheng,
Pengrui Qiu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/440/5/052077
Subject(s) - roof , geology , displacement (psychology) , deformation (meteorology) , mining engineering , geotechnical engineering , engineering , civil engineering , psychology , oceanography , psychotherapist
This paper takes Zhuxianzhuang Mine as the research background. In this research, the reasonable height of “three zones” of overlying strata at 7m mining height is determined by key strata theory, and the movement law of overlying strata is studied by FLAC3D numerical simulation. The stress, displacement and plastic zone of surrounding rock under the three schemes of no support, bolt support and roof support are compared and analyzed according to the site construction situation. On this basis, the regional treatment scheme is put forward. The test results prove that the adoption of staged process control technology and enhanced support technology can effectively control the surrounding rock deformation of overlying strata roadway, which is scientific and reasonable in technology and effective and feasible in construction.