Application and Development on Coal Mine Backfill Mining Technologies in China

DOI

10.2991/coal-18.2018.8How to use a DOI?

Keywords

coal mine, solid waste, roadway throwing backfilling, pneumatic pipeline backfilling, conventional throwing backfilling, fully-mechanized tamping backfilling, paste or paste-like backfilling, slurry or slurry-like backfilling, ground subsidence control, surface movement parameters

Abstract

The rapid development of backfill mining technologies were reviewed in Chinese coal mines from the 2002 to 2012 in Chinese coal mines. Some field engineering applications were introduced, the main data was collected from 27 typical backfill mining working face, including geology survey, mining setting, backfill material, technique system and monitoring effects etc. The main technologies include roadway gangue backfilling, conventional gangue backfilling, fully-mechanized gangue compacting backfilling, pneumatic backfilling, paste or paste-like backfilling, slurry or slurry-like backfilling etc. Roadway backfilling is suitable to protect the important buildings. Pneumatic backfilling, conventional mining backfilling, fully-mechanized mining compacting backfilling, paste or paste-like backfilling are suitable for the large regional operations to protect the general or important buildings and structures. Slurry or slurry-like backfilling are suitable for the operations with the single thin coal seam or the lack of backfilling materials. Some backfill indexes, including capital investment, backfill capacity, production, backfill cost per ton, mechanized level, system stability, backfill deformation, surface subsidence coefficient etc. were used to evaluate field engineering application effects. Ground subsidence software was developed to predict the ground movement parameters by Shandong University of Science and Technology based on field measured data. The future backfill development direction of backfill technology was analyzed. The paper provided an important reference, which will have an significance to promote and use the backfill mining technologies.

Copyright

© 2018, 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/).

Download article (PDF)

TY  - CONF
AU  - Xinguo Zhang
AU  - Jinxiao Liu
AU  - Feifan Li
AU  - Gaoshang Wang
AU  - Wenqiang Zuo
PY  - 2018/10
DA  - 2018/10
TI  - Application and Development on Coal Mine Backfill Mining Technologies in China
BT  - Proceedings of the 9th China-Russia Symposium "Coal in the 21st Century: Mining, Intelligent Equipment and Environment Protection" (COAL 2018)
PB  - Atlantis Press
SP  - 42
EP  - 49
SN  - 2352-5401
UR  - https://doi.org/10.2991/coal-18.2018.8
DO  - 10.2991/coal-18.2018.8
ID  - Zhang2018/10
ER  -