FEM analyses for influences of pressure solution on thermo-hydro-mechanical coupling in porous rock mass
文献类型：期刊论文
| 作者 | Yang Chao-shuai1,2; Zhang Yu-jun1 |
| 刊名 | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| 出版日期 | 2012 |
| 卷号 | 19期号:8页码:2333-2339 |
| 关键词 | pressure solution porous medium thermo-hydro-mechanical coupling FEM analysis |
| ISSN号 | 2095-2899 |
| DOI | 10.1007/s11771-012-1279-8 |
| 英文摘要 | The model of pressure solution for granular aggregate was introduced into the FEM code for analysis of thermo-hydro-mechanical (T-H-M) coupling in porous medium. Aiming at a hypothetical nuclear waste repository in an unsaturated quartz rock mass, two computation conditions were designed: 1) the porosity and the permeability of rock mass are functions of pressure solution; 2) the porosity and the permeability are constants. Then the corresponding numerical simulations for a disposal period of 4 a were carried out, and the states of temperatures, porosities and permeabilities, pore pressures, flow velocities and stresses in the rock mass were investigated. The results show that at the end of the calculation in Case 1, pressure solution makes the porosities and the permeabilities decrease to 10%-45% and 0.05%-1.4% of their initial values, respectively. Under the action of the release heat of nuclear waste, the negative pore pressures both in Case 1 and Case 2 are 1.2-1.4 and 1.01-1.06 times of the initial values, respectively. So, the former represents an obvious effect of pressure solution. The magnitudes and distributions of stresses within the rock mass in the two calculation cases are the same. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000307312000033 |
| 出版者 | JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3359]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech ; 2.China Railway Tunnel Grp Co Ltd, Luoyang 471009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Chao-shuai,Zhang Yu-jun. FEM analyses for influences of pressure solution on thermo-hydro-mechanical coupling in porous rock mass[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2012,19(8):2333-2339. |
| APA | Yang Chao-shuai,&Zhang Yu-jun.(2012).FEM analyses for influences of pressure solution on thermo-hydro-mechanical coupling in porous rock mass.JOURNAL OF CENTRAL SOUTH UNIVERSITY,19(8),2333-2339. |
| MLA | Yang Chao-shuai,et al."FEM analyses for influences of pressure solution on thermo-hydro-mechanical coupling in porous rock mass".JOURNAL OF CENTRAL SOUTH UNIVERSITY 19.8(2012):2333-2339. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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