Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1007/978-981-15-0886-8_55 |
| Effect of Anisotropy on Stress-Strain and Pore Pressure Response of Normally and Heavily Over Consolidated Nagpur Expansive Soil | |
| Kantesaria, Naman; Sachan, Ajanta | |
| 通讯作者 | Kantesaria, N (corresponding author), Indian Inst Technol Gandhinagar, Civil Engn, Palaj, India. |
| 会议名称 | Symposium of the International-Association-for-Computer-Methods-and-Advances-in-Geomechanics (IACMAG) |
| 会议日期 | MAR 05-07, 2019 |
| 会议地点 | Indian Inst Technol Gandhinagar, Ahmedabad, INDIA |
| 英文摘要 | Expansive soil is a residual cohesive soil, mostly present in the arid and semi-arid regions of the world. Stress induced anisotropy is an important aspect to be considered for the analysis and design of several geotechnical structures on expansive soils. Though, its effect is yet to be explored. Hence, the aim of the current study is to evaluate the effect of stress induced anisotropy on the shear behavior of normally and heavily over consolidated Nagpur expansive soil. Nagpur expansive soil is classified as CH (clay with high plasticity) type of soil with high amount of clay content (60%) and high value of differential free swell index (DFSI, 123%). Experimental research has been performed on Nagpur soil by conducting a series of anisotropically (K-c = 0.70, 0.85, 1) consolidated undrained (CU) triaxial compression tests at an over consolidation ratio (OCR) of 1 and 10. Change in void ratio during anisotropic consolidation phase was found to be a function of both, the mean effective stress and deviatoric stress. As Nagpur expansive soil was subjected to pre-shear stress during consolidation phase, its shear behavior showed distinctive response thatwas different from isotropic condition because of induced stress anisotropy. Normalized undrained shear strength was reduced for anisotropically consolidated specimen in comparison to isotropically consolidated specimen for both the OCR 1 and 10. Excess pore water pressure behavior and the A and ss max parameters were also significantly influenced by the induced stress anisotropy for both the normally and heavily over consolidated states. |
| 英文关键词 | Anisotropy Stress-strain Pore pressure Expansive soil K-0 consolidation |
| 来源出版物 | ADVANCES IN COMPUTER METHODS AND GEOMECHANICS, IACMAG 2019, VOL 1 |
| ISSN | 2366-2557 |
| EISSN | 2366-2565 |
| 出版年 | 2020 |
| 卷号 | 55 |
| 页码 | 683-698 |
| ISBN | 978-981-15-0886-8; 978-981-15-0885-1 |
| 出版者 | SPRINGER-VERLAG SINGAPORE PTE LTD |
| 类型 | Proceedings Paper |
| 语种 | 英语 |
| 收录类别 | CPCI-S |
| WOS记录号 | WOS:000659155800054 |
| WOS关键词 | MECHANICAL-BEHAVIOR ; SHEAR BEHAVIOR ; COMPRESSION ; PATHS |
| WOS类目 | Engineering, Civil ; Engineering, Geological |
| WOS研究方向 | Engineering |
| 资源类型 | 会议论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/353113 |
| 作者单位 | [Kantesaria, Naman; Sachan, Ajanta] Indian Inst Technol Gandhinagar, Civil Engn, Palaj, India |
| 推荐引用方式 GB/T 7714 | Kantesaria, Naman,Sachan, Ajanta. Effect of Anisotropy on Stress-Strain and Pore Pressure Response of Normally and Heavily Over Consolidated Nagpur Expansive Soil[C]:SPRINGER-VERLAG SINGAPORE PTE LTD,2020:683-698. |
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