The thermo-hydro coupled model of low-temperature rock in consideration of phase change
文献类型：会议论文
| 作者 | Liu Quansheng; Xu Guangmia; Wu Yuexiu |
| 出版日期 | 2008 |
| 会议日期 | AUG 27-29, 2007 |
| 会议地点 | Urumqi, PEOPLES R CHINA |
| 关键词 | thermo-hydro coupled model critical frozen region phase change seepage |
| DOI | 10.4028/www.scientific.net/AMR.33-37.645 |
| 页码 | 645 |
| 英文摘要 | Considering the influence of phase change and temperature variation on the physical and mechanical properties of low-temperature rock in cold regions, the mathematical model for the Thermo-Hydro(TH) coupled problem is proposed based on the theory of convective heat transfer for porous medium. In this model, the influence of moisture migration on heat conduction in rock is taken into account, as well as the influence of temperature gradient on the seepage. The involved parameters are determined according to the related equations given in this paper. Then the finite element model of a gas transmission pipeline in cold region is established using the proposed mathematical model. By selecting suitable boundary conditions, initial conditions and heat computation parameters, the freezing problem of low-temperature rock surrounding the pipeline is analyzed. The calculated values of the temperature field and the measured data are basically consistent, which indicates that the proposed TH coupling model for rock in cold regions is reasonable and reliable. |
| 会议录 | ADVANCES IN FRACTURE AND MATERIALS BEHAVIOR, PTS 1 AND 2
 |
| 会议录出版者 | TRANS TECH PUBLICATIONS LTD |
| 会议录出版地 | DURNTEN-ZURICH |
| 语种 | 英语 |
| WOS研究方向 | Materials Science |
| WOS记录号 | WOS:000256659600103 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4468]  |
| 专题 | 岩土力学所知识全产出_会议论文 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Liu Quansheng,Xu Guangmia,Wu Yuexiu. The thermo-hydro coupled model of low-temperature rock in consideration of phase change[C]. 见:. Urumqi, PEOPLES R CHINA. AUG 27-29, 2007. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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