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Analysis of the gushing water law and water filling factors for No.3 coal seam of Xiangshan mine(PDF)

西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

Issue:
2016年06期
Page:
831-836
Research Field:
Publishing date:

Info

Title:
Analysis of the gushing water law and water filling factors for No.3 coal seam of Xiangshan mine
Author(s):
WANG Sheng-quanWU PeiFAN MinSUN Jian-fengWU Zhong-shan
College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China
Keywords:
gushing water law water filling factory No.3 coal seam Xiangshan mine
PACS:
TD 12
DOI:
10.13800/j.cnki.xakjdxxb.2016.0612
Abstract:
To identify the mechanism of mine water gushing and provide evidence for prevention and treatment of mine water,based on a large number of production data,we summarize the water gushing law for mine and No.3 coal seam mining face in Xiangshan coal mine,analyze the water filling factors,and carry out the prediction study on the seam roof aquifer water filling risk.It shows that the water inflow is of increased trend with change in mining conditions.The water inflow at the mining face is low at the anticline zone,high at the syncline area,and increase in earlier but cut back in the late during production.The main water-filled channels are mining-caused roof water flowing fractures.The water-filling source is from the main group at the bottom of Shanxi Coal Seam Roof(K4)sandstone aquifer and Xiashihezi bottom sandstone aquifer water,inflow size depends on the structure of the mining face,the lithology and thickness of the roof overlying aquifer and coal production.In consideration of mining technology and exploitation intensity,the same type of structure in the same mining area,plane difference for water-filled aquifer-rich aqueous is not obvious and atmospheric precipitation and surface runoff supply remains unchanged,based on the lithology and thickness of the overlying sandstone aquifer within the scope of roof water flowing fractured zone,the risk for No.3 coal seam roof aquifer water filling has been predicated.In order to avoid gushing water from mine roof in the process of mining suddenly,advancing dewatering measures should be taken in roof aquifer water-filled grave danger zone.

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Last Update: 2016-11-28