Expansive Soil Crack Depth under Cumulative Damage
The crack developing depth is a key problem to slope stability of the expansive soil and its project governance and the crack appears under the roles of dry-wet cycle and gradually develops. It is believed from the analysis that, because of its own cohesion, the expansive soil will have a certain am...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/498437 |
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| author | Bei-xiao Shi Sheng-shui Chen Hua-qiang Han Cheng-feng Zheng |
| author_facet | Bei-xiao Shi Sheng-shui Chen Hua-qiang Han Cheng-feng Zheng |
| author_sort | Bei-xiao Shi |
| collection | DOAJ |
| description | The crack developing depth is a key problem to slope stability of the expansive soil and its project governance and the crack appears under the roles of dry-wet cycle and gradually develops. It is believed from the analysis that, because of its own cohesion, the expansive soil will have a certain amount of deformation under pulling stress but without cracks. The soil body will crack only when the deformation exceeds the ultimate tensile strain that causes cracks. And it is also believed that, due to the combined effect of various environmental factors, particularly changes of the internal water content, the inherent basic physical properties of expansive soil are weakened, and irreversible cumulative damages are eventually formed, resulting in the development of expansive soil cracks in depth. Starting from the perspective of volumetric strain that is caused by water loss, considering the influences of water loss rate and dry-wet cycle on crack developing depth, the crack developing depth calculation model which considers the water loss rate and the cumulative damages is established. Both the proposal of water loss rate and the application of cumulative damage theory to the expansive soil crack development problems try to avoid difficulties in matrix suction measurement, which will surely play a good role in promoting and improving the research of unsaturated expansive soil. |
| format | Article |
| id | doaj-art-8dae84a3712e4d0fa7b57e842b4388f8 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-8dae84a3712e4d0fa7b57e842b4388f82025-08-20T03:37:54ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/498437498437Expansive Soil Crack Depth under Cumulative DamageBei-xiao Shi0Sheng-shui Chen1Hua-qiang Han2Cheng-feng Zheng3State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaGeotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaGeotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaGeotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaThe crack developing depth is a key problem to slope stability of the expansive soil and its project governance and the crack appears under the roles of dry-wet cycle and gradually develops. It is believed from the analysis that, because of its own cohesion, the expansive soil will have a certain amount of deformation under pulling stress but without cracks. The soil body will crack only when the deformation exceeds the ultimate tensile strain that causes cracks. And it is also believed that, due to the combined effect of various environmental factors, particularly changes of the internal water content, the inherent basic physical properties of expansive soil are weakened, and irreversible cumulative damages are eventually formed, resulting in the development of expansive soil cracks in depth. Starting from the perspective of volumetric strain that is caused by water loss, considering the influences of water loss rate and dry-wet cycle on crack developing depth, the crack developing depth calculation model which considers the water loss rate and the cumulative damages is established. Both the proposal of water loss rate and the application of cumulative damage theory to the expansive soil crack development problems try to avoid difficulties in matrix suction measurement, which will surely play a good role in promoting and improving the research of unsaturated expansive soil.http://dx.doi.org/10.1155/2014/498437 |
| spellingShingle | Bei-xiao Shi Sheng-shui Chen Hua-qiang Han Cheng-feng Zheng Expansive Soil Crack Depth under Cumulative Damage The Scientific World Journal |
| title | Expansive Soil Crack Depth under Cumulative Damage |
| title_full | Expansive Soil Crack Depth under Cumulative Damage |
| title_fullStr | Expansive Soil Crack Depth under Cumulative Damage |
| title_full_unstemmed | Expansive Soil Crack Depth under Cumulative Damage |
| title_short | Expansive Soil Crack Depth under Cumulative Damage |
| title_sort | expansive soil crack depth under cumulative damage |
| url | http://dx.doi.org/10.1155/2014/498437 |
| work_keys_str_mv | AT beixiaoshi expansivesoilcrackdepthundercumulativedamage AT shengshuichen expansivesoilcrackdepthundercumulativedamage AT huaqianghan expansivesoilcrackdepthundercumulativedamage AT chengfengzheng expansivesoilcrackdepthundercumulativedamage |