A strength criterion for frozen sodium sulfate saline soil
文献类型：期刊论文
| 作者 | Liao, Mengke1,2; Lai, Yuanming1,3; Wang, Chong1,4 |
| 刊名 | CANADIAN GEOTECHNICAL JOURNAL
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 53期号:7页码:1176-1185 |
| 关键词 | sodium sulfate frozen saline soil strength criterion freezing temperature deviatoric plane |
| ISSN号 | 0008-3674 |
| DOI | 10.1139/cgj-2015-0569 |
| 通讯作者 | Lai, Yuanming(ymlai@lzb.ac.cn) |
| 英文摘要 | Salt content has been proven to be an important influencing factor on the mechanical properties of frozen saline soils, whose strength criterion is different from that of unfrozen saline soils or frozen soils without salts. In this paper, a series of conventional triaxial tests are carried out for frozen saline soils with sodium sulfate at a temperature of -6 degrees C. A strength criterion of the frozen saline soils, including the influence of salt content, is established by using the generalized nonlinear strength theory. Based on conventional triaxial test results, a modified hydrostatic pressure expression is proposed according to the critical strength function of the modified Cam clay model in the meridian plane. The influence of salt content on the shear strength of the frozen saline soils is investigated according to their freezing temperature curves as well as the formation of salt and ice crystals. The relationship between salt content and friction angle is analyzed. The proposed strength criterion of frozen saline soil is proved to be reliable by extrusion elongation triaxial tests. This criterion can reasonably reflect the major nonlinear strength characteristics of frozen saline soils, including the influences of change in salt content, pressure melting, and ice crushing. |
| 收录类别 | SCI |
| WOS关键词 | CRITICAL-STATE MODEL ; CONSTITUTIVE MODEL ; FAILURE CRITERION ; CAM-CLAY ; GEOMATERIALS ; BEHAVIOR ; SANDS ; STRESS ; YIELD |
| WOS研究方向 | Engineering ; Geology |
| WOS类目 | Engineering, Geological ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000379174100010 |
| 出版者 | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557232 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Lai, Yuanming |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou 730070, Gansu, Peoples R China 4.Lanzhou Univ, Sch Civil Engn & Mech, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao, Mengke,Lai, Yuanming,Wang, Chong. A strength criterion for frozen sodium sulfate saline soil[J]. CANADIAN GEOTECHNICAL JOURNAL,2016,53(7):1176-1185. |
| APA | Liao, Mengke,Lai, Yuanming,&Wang, Chong.(2016).A strength criterion for frozen sodium sulfate saline soil.CANADIAN GEOTECHNICAL JOURNAL,53(7),1176-1185. |
| MLA | Liao, Mengke,et al."A strength criterion for frozen sodium sulfate saline soil".CANADIAN GEOTECHNICAL JOURNAL 53.7(2016):1176-1185. |
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来源：寒区旱区环境与工程研究所
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