孔隙水压对工作面前方煤体特性影响的研究

现代矿业 ›› 2013, Vol. 29 ›› Issue (02): 39-42+112.

孔隙水压对工作面前方煤体特性影响的研究

桑培淼

国投煤炭郑州能源开发有限公司国投登封教学三矿

出版日期:2013-02-15 发布日期:2013-03-14

Research of Impact of Pore Water Pressure to Characteristic of Coal in the Front of Working Face

Sang Peimiao

SDIC Dengfeng Jiaoxue No.3 Mine of SDIC Coal Zhengzhou Engineer Development Co.,Ltd

Online:2013-02-15 Published:2013-03-14

摘要/Abstract

摘要： 为了研究注水压力对松软煤体特性的影响，利用FLAC3D有限差分程序模拟分析了不同注水压力产生的孔隙水压对工作面前方煤体垂直应力、水平应力、煤层压缩率、塑性区的影响，得出了孔隙水压对煤体特性的影响规律，由此可知，适当增加注水压力，有利于煤壁的稳定。

关键词: 孔隙水压, 垂直应力, 水平应力, 煤层压缩率, 煤壁稳定性

Abstract: To study the impact of water injection pressure to soft coal characteristic, impacts of pore water pressure generated by different water injection pressure to vertical stress, horizontal stress, compression ratio of coal seam, plastic zone of coal body in front of working face were simulated and analyzed by using FLAC3D finite difference program, influence rules of pore water pressure to charactersitcs of coal body were obtained, it can be seen, increase water injection pressure appropriately is benefit for the stable of coal wall.

Key words: Pore water pressure, Vertical stress, Horizontal stress, Compression ratio of coal seam, Stability of coal wall

桑培淼. 孔隙水压对工作面前方煤体特性影响的研究[J]. 现代矿业, 2013, 29(02): 39-42+112.

SANG Pei-Miao. Research of Impact of Pore Water Pressure to Characteristic of Coal in the Front of Working Face[J]. Modern Mining, 2013, 29(02): 39-42+112.

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