On distribution characteristics of the temperature field and gas seepage law of coal in deep mining
The study of gas seepage under the condition of multifield coupling has always been an important topic in coal mining. Based on the theory of multifield coupling and the research method of numerical simulation, the influences of the stress and temperature fields on the seepage field under...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
VINCA Institute of Nuclear Sciences
2020-01-01
|
| Series: | Thermal Science |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-9836/2020/0354-98362006923Y.pdf |
| id |
doaj-ca8aa76df8cf4b9db2413b2b3426d706 |
|---|---|
| record_format |
Article |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Yang Ming-Qing Xie He-Ping Gao Ming-Zhong He Zhi-Qiang Li Cong Xie Jing Lu Yi-Qiang Yang Ben-Gao |
| spellingShingle |
Yang Ming-Qing Xie He-Ping Gao Ming-Zhong He Zhi-Qiang Li Cong Xie Jing Lu Yi-Qiang Yang Ben-Gao On distribution characteristics of the temperature field and gas seepage law of coal in deep mining Thermal Science coal seam gas mining induced stress field temperature field gas migration multi physical field coupling comsol multiphysics |
| author_facet |
Yang Ming-Qing Xie He-Ping Gao Ming-Zhong He Zhi-Qiang Li Cong Xie Jing Lu Yi-Qiang Yang Ben-Gao |
| author_sort |
Yang Ming-Qing |
| title |
On distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| title_short |
On distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| title_full |
On distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| title_fullStr |
On distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| title_full_unstemmed |
On distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| title_sort |
on distribution characteristics of the temperature field and gas seepage law of coal in deep mining |
| publisher |
VINCA Institute of Nuclear Sciences |
| series |
Thermal Science |
| issn |
0354-9836 2334-7163 |
| publishDate |
2020-01-01 |
| description |
The study of gas seepage under the condition of multifield coupling has
always been an important topic in coal mining. Based on the theory of
multifield coupling and the research method of numerical simulation, the
influences of the stress and temperature fields on the seepage field under
the conditions of deep coal mining are studied. With the example of the
J15-31030 deep working face from mine No. 12 in the Pingdingshan Coal Mine,
modeling and finite element analysis are carried out. The influences of the
mining stress field and temperature field on the gas seepage field are
preliminarily revealed. The results show that the closer to the working
face, the greater the velocity of the seepage field is, and the greater the
gradient of velocity change. There is a clear negative correlation between
the mining stress field and the permeability of the seepage field. The
larger the excavation length is, the greater the change gradient of the rock
permeability near the working face is. The temperature field has a
significant impact on the adsorbed gas in the seepage field. These research
results provide the corresponding basis for the safety control and effective
mining of coal mine gas. |
| topic |
coal seam gas mining induced stress field temperature field gas migration multi physical field coupling comsol multiphysics |
| url |
http://www.doiserbia.nb.rs/img/doi/0354-9836/2020/0354-98362006923Y.pdf |
| work_keys_str_mv |
AT yangmingqing ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT xieheping ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT gaomingzhong ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT hezhiqiang ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT licong ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT xiejing ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT luyiqiang ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining AT yangbengao ondistributioncharacteristicsofthetemperaturefieldandgasseepagelawofcoalindeepmining |
| _version_ |
1724283888198483968 |
| spelling |
doaj-ca8aa76df8cf4b9db2413b2b3426d7062021-02-05T08:41:46ZengVINCA Institute of Nuclear SciencesThermal Science0354-98362334-71632020-01-01246 Part B3923393110.2298/TSCI2006923Y0354-98362006923YOn distribution characteristics of the temperature field and gas seepage law of coal in deep miningYang Ming-Qing0Xie He-Ping1Gao Ming-Zhong2He Zhi-Qiang3Li Cong4Xie Jing5Lu Yi-Qiang6Yang Ben-Gao7State Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, China + Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Science and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, Guangdong, ChinaState Key Laboratory of Hydraulics and Mountain River Engineering, College of Water Resource and Hydropower, Sichuan University, Chengdu, Sichuan, ChinaThe study of gas seepage under the condition of multifield coupling has always been an important topic in coal mining. Based on the theory of multifield coupling and the research method of numerical simulation, the influences of the stress and temperature fields on the seepage field under the conditions of deep coal mining are studied. With the example of the J15-31030 deep working face from mine No. 12 in the Pingdingshan Coal Mine, modeling and finite element analysis are carried out. The influences of the mining stress field and temperature field on the gas seepage field are preliminarily revealed. The results show that the closer to the working face, the greater the velocity of the seepage field is, and the greater the gradient of velocity change. There is a clear negative correlation between the mining stress field and the permeability of the seepage field. The larger the excavation length is, the greater the change gradient of the rock permeability near the working face is. The temperature field has a significant impact on the adsorbed gas in the seepage field. These research results provide the corresponding basis for the safety control and effective mining of coal mine gas.http://www.doiserbia.nb.rs/img/doi/0354-9836/2020/0354-98362006923Y.pdfcoal seam gasmining induced stress fieldtemperature fieldgas migrationmulti physical field couplingcomsol multiphysics |