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Title:
WALL CONTINUOUS MINING AND CONTINUOUS FILLING WATER-PRESERVED COAL MINING METHOD, AND WATER RESOURCE MIGRATION MONITORING AND WATER DISASTER EARLY WARNING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/119177
Kind Code:
A1
Abstract:
A wall continuous mining and continuous filling water-preserved coal mining method, and a water resource migration monitoring and water disaster early warning method. In the coal mining method, a normal wall working face is divided along the strike direction into "mining-filling" and "mining-retaining" mining blocks alternately arranged; no coal pillar is retained between mining roadways in a "mining-filling" mining block (1), and a roadway with the excavation completed is filled; narrow coal pillars (10) are retained between mining roadways in a "mining-retaining" mining block (2), and a roadway with the excavation completed is not filled.In the early warning method, an infrared thermal imaging system is used for observing surface infrared radiation information of an excavation space, and predicting and forecasting a dynamic disaster such as backfill object or narrow coal pillar instability. An water resource migration monitoring and water disaster early warning system is used for comprehensive monitoring, early warning, and reasonable evaluation of water resource loss in a mining area caused by coal mining and water disasters easy to occur in a mining stope.

Inventors:
MA LIQIANG (CN)
ZHANG DONGSHENG (CN)
WANG SHUOKANG (CN)
NI YANXIAO (CN)
Application Number:
CN2019/102479
Publication Date:
June 18, 2020
Filing Date:
August 26, 2019
Export Citation:
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Assignee:
UNIV CHINA MINING (CN)
JIANGSU NEW MOON MINING TECH DEVELOPMENT CO LTD (CN)
International Classes:
E21C41/18; E21F17/18
Foreign References:
CN109577982A2019-04-05
CN107542465A2018-01-05
CN203809053U2014-09-03
CN108087021A2018-05-29
CN106246224A2016-12-21
CN103437765A2013-12-11
GB2229747A1990-10-03
Other References:
MA, LIQIANG ET AL.: "Theories and Methods of Efficiency Water Conservation Mining in Short-Distance Coal Seams", JOURNAL OF CHINA COAL SOCIETY, vol. 44, no. 3, 15 March 2019 (2019-03-15), pages 727 - 738
MA, LIQIANG ET AL.: "Water-Preserved Mining with the Method Named “Backfilling While Mining”", JOURNAL OF CHINA COAL SOCIETY, vol. 43, no. 1, 15 January 2018 (2018-01-15), pages 62 - 69, DOI: 20191016161815A
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., LTD (CN)
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