Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion
The static allowable stress field of foundation under strip foundation is constructed by means of stress columns, and the calculation method of the lower bound foundation bearing capacity based on the two-parameter parabolic Mohr yield criterion is proposed. Moreover, the influence of the amount of...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8897777 |
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| _version_ | 1832553993487777792 |
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| author | Fang Wei Shi Li-jun |
| author_facet | Fang Wei Shi Li-jun |
| author_sort | Fang Wei |
| collection | DOAJ |
| description | The static allowable stress field of foundation under strip foundation is constructed by means of stress columns, and the calculation method of the lower bound foundation bearing capacity based on the two-parameter parabolic Mohr yield criterion is proposed. Moreover, the influence of the amount of stress columns and material mechanical parameters on the lower bound bearing capacity is analyzed. The results show that a better solution can be obtained by optimizing the static allowable stress field. However, the improvement of lower bound solution might be inefficient if the stress column amount is large enough. The stresses of the superimposition area show a reduction with the improvement of stress field; on the other hand, the superposed stresses are enhanced ever faster as the involved stress column increases. The tensile-compressive strength ratio has a moderate effect on the lower bound solution. Finally, the reliability of the proposed method is verified by some rock foundation loading tests. |
| format | Article |
| id | doaj-art-0abc702f7e42452f8ad763f4b3fe78f9 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0abc702f7e42452f8ad763f4b3fe78f92025-02-03T05:52:32ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88977778897777Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure CriterionFang Wei0Shi Li-jun1School of Traffic and Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, ChinaHunan Hongshang Testing Technology Co., Ltd., Changsha 410208, ChinaThe static allowable stress field of foundation under strip foundation is constructed by means of stress columns, and the calculation method of the lower bound foundation bearing capacity based on the two-parameter parabolic Mohr yield criterion is proposed. Moreover, the influence of the amount of stress columns and material mechanical parameters on the lower bound bearing capacity is analyzed. The results show that a better solution can be obtained by optimizing the static allowable stress field. However, the improvement of lower bound solution might be inefficient if the stress column amount is large enough. The stresses of the superimposition area show a reduction with the improvement of stress field; on the other hand, the superposed stresses are enhanced ever faster as the involved stress column increases. The tensile-compressive strength ratio has a moderate effect on the lower bound solution. Finally, the reliability of the proposed method is verified by some rock foundation loading tests.http://dx.doi.org/10.1155/2020/8897777 |
| spellingShingle | Fang Wei Shi Li-jun Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion Advances in Civil Engineering |
| title | Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion |
| title_full | Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion |
| title_fullStr | Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion |
| title_full_unstemmed | Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion |
| title_short | Lower Bound Solution of Foundation Bearing Capacity beneath Strip Footing Based on Parabolic Mohr Failure Criterion |
| title_sort | lower bound solution of foundation bearing capacity beneath strip footing based on parabolic mohr failure criterion |
| url | http://dx.doi.org/10.1155/2020/8897777 |
| work_keys_str_mv | AT fangwei lowerboundsolutionoffoundationbearingcapacitybeneathstripfootingbasedonparabolicmohrfailurecriterion AT shilijun lowerboundsolutionoffoundationbearingcapacitybeneathstripfootingbasedonparabolicmohrfailurecriterion |