| Study on Methane Flow Regularity and Secondary Stress and Deformation of Coal Bady around Penetration Boreholes in Coal Seam |
| |
| 作者姓名： | Zhou Xiaojun Ma Xinxiao |
| |
| 作者单位： | Zhou Xiaojun Ma Xinxiao |
| |
| 摘 要： | A new mathematical model for the coefficient of variable permeability affected by coal body, secondary stress & pressure in coalseam & a constitutive equation for gas migration are improved on the basis of the secondary stress & deformation of coal body around boreholes in coalseam. Using this model and equation,the gas flow field belongs to the 20102 experimental zone in BaiJiao coal Mine is computed & this verifies that the model & constitutive equation are both agreeable to practical results. Simultaneously, a comparison between the variable and constant permeabilities is carried out.
|
| 关 键 词： | secondary stress deformation constitutive equation permeability coefficient mathematical model methane flow |
Study on Methane Flow Regularity and Secondary Stress and Deformation of Coal Bady around Penetration Boreholes in Coal Seam |
| |
| Zhou Xiaojun Ma Xinxiao.Study on Methane Flow Regularity and Secondary Stress and Deformation of Coal Bady around Penetration Boreholes in Coal Seam[J].Storage & Process,1995(5):31-38. |
| |
| Authors: | Zhou Xiaojun Ma Xinxiao |
| |
| Institution: | Zhou Xiaojun Ma Xinxiao |
| |
| Abstract: | A new mathematical model for the coefficient of variable permeability affected by coal body, secondary stress & pressure in coalseam & a constitutive equation for gas migration are improved on the basis of the secondary stress & deformation of coal body around boreholes in coalseam. Using this model and equation,the gas flow field belongs to the 20102 experimental zone in BaiJiao coal Mine is computed & this verifies that the model & constitutive equation are both agreeable to practical results. Simultaneously, a comparison between the variable and constant permeabilities is carried out. |
| |
| Keywords: | secondary stress deformation constitutive equation permeability coefficient mathematical model methane flow |
|
| 点击此处可从《保鲜与加工》浏览原始摘要信息 |
| 点击此处可从《保鲜与加工》下载免费的PDF全文 |
