A novel modeling of settlement of foundations in permafrost regions
文献类型：期刊论文
| 作者 | Wang, Songhe1; Qi, Jilin2; Yu, Fan3; Liu, Fengyin1 |
| 刊名 | GEOMECHANICS AND ENGINEERING
 |
| 出版日期 | 2016-02-01 |
| 卷号 | 10期号:2页码:225-245 |
| 关键词 | settlement frozen ground freeze-thaw thaw consolidation creep |
| ISSN号 | 2005-307X |
| 通讯作者 | Wang, Songhe(wangsonghe@126.com) |
| 英文摘要 | Settlement of foundations in permafrost regions primarily results from three physical and mechanical processes such as thaw consolidation of permafrost layer, creep of warm frozen soils and the additional deformation of seasonal active layer induced by freeze-thaw cycling. This paper firstly establishes theoretical models for the three sources of settlement including a statistical damage model for soils which experience cyclic freeze-thaw, a large strain thaw consolidation theory incorporating a modified Richards' equation and a Drucker-Prager yield criterion, as well as a simple rheological element based creep model for frozen soils. A novel numerical method was proposed for live computation of thaw consolidation, creep and freeze-thaw cycling in corresponding domains which vary with heat budget in frozen ground. It was then numerically implemented in the FISH language on the FLAC platform and verified by freeze-thaw tests on sandy clay. Results indicate that the calculated results agree well with the measured data. Finally a model test carried out on a half embankment in laboratory was modeled. |
| 收录类别 | SCI |
| WOS关键词 | QINGHAI-TIBET RAILWAY ; FREEZE-THAW CYCLES ; DAMAGE CONSTITUTIVE MODEL ; WARM FROZEN CLAY ; EMBANKMENTS ; STRENGTH ; PLATEAU ; SOIL ; DEFORMATION ; CRITERION |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Civil ; Engineering, Geological |
| 语种 | 英语 |
| WOS记录号 | WOS:000373903700007 |
| 出版者 | TECHNO-PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557283 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Songhe |
| 作者单位 | 1.Xian Univ Technol, Inst Geotech Engn, Xian 710048, Shaanxi, Peoples R China 2.Beijing Univ Civil Engn & Architecture, Coll Civil & Transportat Engn, Beijing 100044, Peoples R China 3.Chinese Acad Sci, State Key Lab Frozen Soil Engn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Songhe,Qi, Jilin,Yu, Fan,et al. A novel modeling of settlement of foundations in permafrost regions[J]. GEOMECHANICS AND ENGINEERING,2016,10(2):225-245. |
| APA | Wang, Songhe,Qi, Jilin,Yu, Fan,&Liu, Fengyin.(2016).A novel modeling of settlement of foundations in permafrost regions.GEOMECHANICS AND ENGINEERING,10(2),225-245. |
| MLA | Wang, Songhe,et al."A novel modeling of settlement of foundations in permafrost regions".GEOMECHANICS AND ENGINEERING 10.2(2016):225-245. |
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来源：寒区旱区环境与工程研究所
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