Micro-structure characteristics of undisturbed expansive soil under the wetting-drying effect
文献类型：会议论文
| 作者 | Wang, Y.1,2; Kong, L. W.1; Wang, Y. L.2 |
| 出版日期 | 2015 |
| 会议日期 | SEP 01-03, 2014 |
| 会议地点 | Univ Cambridge, Cambridge, ENGLAND |
| 页码 | 1409-1414 |
| 英文摘要 | The drying-wetting process of expansive soil caused by atmospheric action is the most important factor that contributes to the degradation of the soil's engineering properties. Studies on the evolution law of the microstructure of undisturbed expansive soil are conducted under the wetting-drying process. The drying-wetting effect of expansive soil caused by atmospheric action is simulated in a constant temperature and humidity box, and then some tests of mercury intrusion porosimetry and scanning electron microscopy are carried out. Results show that the influence of wetting and drying on the characteristics of the expansive soil microstructure is significant; the manner by which the microstructures adjust and change differs significantly during the drying or wetting process. Structures with the large pore diameter generate a significant effect. The drying process causes damage more easily to the primary macro pore structure or micro fractures of expansive soil compared with the wetting process; however, the wetting process amplifies the damage and results in uniform pore size distribution. |
| 会议录 | Geomechanics from Micro to Macro, Vols I and II
 |
| 会议录出版者 | CRC PRESS-TAYLOR & FRANCIS GROUP |
| 会议录出版地 | BOCA RATON |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Geology |
| WOS记录号 | WOS:000380529100229 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4855]  |
| 专题 | 岩土力学所知识全产出_会议论文 国家重点实验室知识产出_会议论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Minist Water Resources, Yangtze River Sci Res Inst, Key Lab Geotech Mech & Engn |
| 推荐引用方式 GB/T 7714 | Wang, Y.,Kong, L. W.,Wang, Y. L.. Micro-structure characteristics of undisturbed expansive soil under the wetting-drying effect[C]. 见:. Univ Cambridge, Cambridge, ENGLAND. SEP 01-03, 2014. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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