Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face

TAO Yuan; QIN Ruxiang; PANG Wenhua

Safety in Coal Mines > 2014 > 45(1): 186-188,191.

TAO Yuan, QIN Ruxiang, PANG Wenhua. Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face[J]. Safety in Coal Mines, 2014, 45(1): 186-188,191.

Citation:

TAO Yuan, QIN Ruxiang, PANG Wenhua. Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face[J]. Safety in Coal Mines, 2014, 45(1): 186-188,191.

Citation:

TAO Yuan, QIN Ruxiang, PANG Wenhua. Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face[J]. Safety in Coal Mines, 2014, 45(1): 186-188,191.

Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face

More Information

Published Date: January 19, 2014

Graphical Abstract

Abstract

Abstract

In order to obtain goaf flow field distribution in U-type fully mechanized mining face, the study established a two-dimensional goaf physical model according to the actual situation of 11124 working face, FLUENT software and adaptive mesh refinement techniques is used to study the model. Simulated working surface airflow field distribution agrees with the measured data, which verified the reasonableness of the numerical simulation result. The simulative results show that the main air leakage district of coalface is within the range 0 to 20 m, and some air flow backs to the coalface in this district, but most of the air flow backs to the coalface within 140 to 160 m. The goaf wind contours are not symmetrical in the gradient direction; in the strike direction of the goaf, the air flow velocity is decreasing gradually.
- U-type ventilation,
- gob,
- air-flowing field,
- numerical simulation,
- air leakage

FullText(HTML)

References (9)

References

[1]	王德明. 矿井火灾学[M].徐州：中国矿业大学出版社，2008：113-121.
[2]	徐精彩，张辛亥，邓军，等. 常村煤矿2106综放面采空区“三带”规律及自燃危险性研究[J].湖南科技大学学报，2004，19（3）：1-4.
[3]	罗新荣，李增华，张迎第，等. 综采放顶煤采场漏风与采空区氧化三带研究[J].煤炭学报，1998，23（5）：480-485.
[4]	江卫. SF₆示踪技术与能位测定联合检测复杂采空区漏风[J].煤炭科学技术，2003，31（8）：9-11.
[5]	韩占忠，王敬，兰小平. FLUENT：流体工程仿真计算机实例与应用[M].北京：北京理工大学出版社，2004：1-65.
[6]	王瑞金，张凯，王刚. Fluent技术基础与应用[M].北京：清华大学出版社，2007：205-229.
[7]	杨胜强，徐全，黄金，等. 采空区自燃“三带”微循环理论及漏风流场数值模拟[J].中国矿业大学学报，2009，38（6）：769-773.
[8]	李宗翔，海国志，秦书玉. 采空区风流移动规律的数值模拟与可视化显示[J]. 煤炭学报，2001，26（1）：76.
[9]	唐明云，戴广龙，秦汝祥，等. 综采工作面采空区漏风规律数值模拟[J]. 中南大学学报：自然科学版，2012，43（4）：1494-1498.

[1]	LI Zhen’an, LI Zhuang. Experimental study on mechanical response of anchored fractured coal under cyclic dynamic loading[J]. Safety in Coal Mines, 2024, 55(10): 158-165. DOI: 10.13347/j.cnki.mkaq.20221767
[2]	FANG Shuhao, HUO Yujia, GUO Jinlin, BAI Zhipeng, BAO Qingfeng, ZHU Hongqing. Numerical simulation of failure of coal and rock blocks under different dynamic loads[J]. Safety in Coal Mines, 2021, 52(1): 184-188,193.
[3]	LIU Bingliang. Mine Strata Pressure Behavior Law of 12511 Fully-mechanized Coal Mining Face in Bulianta Coal Mine[J]. Safety in Coal Mines, 2019, 50(9): 203-206.
[4]	SHAO Hongqi. Mechanism of Dynamic and Static Load Support Crushing and Comprehensive Blasting Prevention Technique[J]. Safety in Coal Mines, 2019, 50(1): 79-83.
[5]	CHI Guoming, QI Hao. Dynamic Load Ground Pressure Control Technology for Bulianta Coal Mine 7 Meters Large Mining Height Fully Mechanized Coal Face Passing Through Stress-concentrated Coal Pillar[J]. Safety in Coal Mines, 2017, 48(s1): 20-23,31.
[6]	MA Jinbao, MA Ji, WANG Sheng, DENG Lei. Optimization of Supporting Parameters for Deep Coal Roadway Considering Repeated Impact Dynamic Load[J]. Safety in Coal Mines, 2017, 48(7): 212-215.
[7]	LI Ke, ZHANG Jinhong, ZHANG Kaizhi, XIAO Liping, XU Youlin, DUAN Yu. Study on Mechanism of Deep Roadway Rock Burst Induced by Dynamic Load in High Ground Stress Region[J]. Safety in Coal Mines, 2017, 48(7): 52-56.
[8]	PU Zhiqiang, ZHU Yan. New Support System of Dynamic Load Fully Mechanized Mining Roadway in Daizhuang Coal Mine[J]. Safety in Coal Mines, 2016, 47(8): 159-162.
[9]	CHEN Feng, DOU Linming, WANG Guifeng, XIE Qun, XIE Long. Effect of Bottom Coal Thickness on Roadway Floor Burst Induced by Dynamic Disturbance in Folded Region[J]. Safety in Coal Mines, 2014, 45(7): 175-178,182.
[10]	ZHANG Jinshan, XU Guohua, MA Meng, WANG Hongwu, QIE Feng. Strata Behavior Law at Fully Mechanized Caving Face in Thick Coal Seam With Large Dip Angle[J]. Safety in Coal Mines, 2014, 45(2): 181-183,187.

Cited By

Cited by

Periodical cited type(5)

1.	梁连岗. 浅埋煤层采场矿压规律及支架合理工作阻力研究. 当代化工研究. 2021(02): 60-61 .
2.	贾俊英. 天安煤矿20104工作面矿压显现规律及支架适应性分析. 煤矿现代化. 2021(01): 137-139+142 .
3.	邹忠辉. 矿压监测系统在综放工作面的应用. 当代化工研究. 2020(09): 59-60 .
4.	宋俊峰. 辛置矿2-216大采高工作面矿压特征及支架适应性研究. 采矿技术. 2020(03): 66-68 .
5.	王亮. 煤矿采煤掘进中高强支护技术的应用. 机械管理开发. 2020(08): 40-41+44 .

Other cited types(1)

Get Citation

XML

Article views (437) PDF downloads (0) Cited by(6)

Turn off MathJax

Article Contents

Abstract

References

Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face

Abstract

References

Related Articles

Cited by

Periodical cited type(5)

Other cited types(1)

Catalog

Numerical Simulation of Goaf Flow Field for U-type Fully Mechanized Working Face

Abstract

References

Related Articles

Cited by

Periodical cited type(5)

Other cited types(1)

Catalog

Export File

Citation

Format

Content