An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force
Considering the effect of seepage force, a dimensionless approach was introduced to improve the stress and strain increment approach on the stresses and radial displacement around a circular tunnel excavated in a strain-softening generalized Hoek–Brown or Mohr–Coulomb rock mass. The circular tunnel...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/2075240 |
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| _version_ | 1849399212257574912 |
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| author | Ling Wang Jin-feng Zou Yu-ming Sheng |
| author_facet | Ling Wang Jin-feng Zou Yu-ming Sheng |
| author_sort | Ling Wang |
| collection | DOAJ |
| description | Considering the effect of seepage force, a dimensionless approach was introduced to improve the stress and strain increment approach on the stresses and radial displacement around a circular tunnel excavated in a strain-softening generalized Hoek–Brown or Mohr–Coulomb rock mass. The circular tunnel can be simplified as axisymmetric problem, and the plastic zone was divided into a finite number of concentric rings which satisfy the equilibrium and compatibility equations. Increments of stresses and strains for each ring were obtained by solving the equilibrium and compatibility equations. Then, the stresses and displacements in softening zone can be calculated. The correctness and reliability of the proposed approach were performed by the existing solutions. |
| format | Article |
| id | doaj-art-9d64c5c1918d46138b11bdd9d5575c2e |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-9d64c5c1918d46138b11bdd9d5575c2e2025-08-20T03:38:23ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422019-01-01201910.1155/2019/20752402075240An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage ForceLing Wang0Jin-feng Zou1Yu-ming Sheng2Ph.D. Student, School of Civil Engineering, No. 22, Shaoshan South Road, Central South University, Changsha, Hunan 410075, ChinaProfessor, School of Civil Engineering, Central South University, No. 22, Shaoshan South Road, Central South University Railway Campus, Changsha, Hunan 410075, ChinaPh.D. Student, School of Civil Engineering, Central South University, No. 22, Shaoshan South Road, Central South University Railway Campus, Changsha, Hunan 410075, ChinaConsidering the effect of seepage force, a dimensionless approach was introduced to improve the stress and strain increment approach on the stresses and radial displacement around a circular tunnel excavated in a strain-softening generalized Hoek–Brown or Mohr–Coulomb rock mass. The circular tunnel can be simplified as axisymmetric problem, and the plastic zone was divided into a finite number of concentric rings which satisfy the equilibrium and compatibility equations. Increments of stresses and strains for each ring were obtained by solving the equilibrium and compatibility equations. Then, the stresses and displacements in softening zone can be calculated. The correctness and reliability of the proposed approach were performed by the existing solutions.http://dx.doi.org/10.1155/2019/2075240 |
| spellingShingle | Ling Wang Jin-feng Zou Yu-ming Sheng An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force Advances in Materials Science and Engineering |
| title | An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force |
| title_full | An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force |
| title_fullStr | An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force |
| title_full_unstemmed | An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force |
| title_short | An Improved Stress and Strain Increment Approaches for Circular Tunnel in Strain-Softening Surrounding Rock Considering Seepage Force |
| title_sort | improved stress and strain increment approaches for circular tunnel in strain softening surrounding rock considering seepage force |
| url | http://dx.doi.org/10.1155/2019/2075240 |
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