Research on Strip Filling Surface Subsidence Rule

DOI

10.2991/mining-14.2014.9How to use a DOI?

Keywords

Filling mining; Strength; The surface deformation; Filling parameters

Abstract

For recycling the remaining coal pillars resources in strip mining, a repeated mining method of using the strip filling replacement of strip coal pillar is proposed, a technical principle of strip filling controlling surface subsidence is illustrated, and the main filling factors which influence the surface subsidence rule are analyzed, FLAC3D is used to analyze the sensitivity of the surface subsidence on the filling parameters (width and strength), the results show that as a "bridge pier", the strip filling body supports the overburden strata and achieve the purpose of controlling the movement of overburden strata through controlling the movement of the overlying bearing stratum; rules of surface subsidence (vertical subsidence, gradient of slope, curvature and horizontal distortion) would decrease as filling parameters (width and strength)increase; the influence of filling parameters (width and strength) on the surface subsidence (vertical subsidence, gradient of slope, curvature and horizontal distortion) is diminishing marginal

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yongkui Shi
AU  - Minhua Qi
AU  - Jingyu Zhang
AU  - Jian Hao
PY  - 2014/10
DA  - 2014/10
TI  - Research on Strip Filling Surface Subsidence Rule
BT  - Proceedings of the Taishan Academic Forum – Project on Mine Disaster Prevention and Control
PB  - Atlantis Press
SP  - 52
EP  - 61
SN  - 2352-5401
UR  - https://doi.org/10.2991/mining-14.2014.9
DO  - 10.2991/mining-14.2014.9
ID  - Shi2014/10
ER  -