Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact
Blasting impact load may be encountered during the construction of some pile foundation projects. Due to the effect of blasting impact, hole collapse can easily occur in the hole-forming stage of pile foundation construction. In order to prevent hole collapse, it is very necessary to evaluate the st...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-01-01
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| Series: | Symmetry |
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| Online Access: | https://www.mdpi.com/2073-8994/14/1/79 |
| _version_ | 1797490089156149248 |
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| author | Qiuwei Yang Zhikun Ba Zhuo Zhao Xi Peng Yun Sun |
| author_facet | Qiuwei Yang Zhikun Ba Zhuo Zhao Xi Peng Yun Sun |
| author_sort | Qiuwei Yang |
| collection | DOAJ |
| description | Blasting impact load may be encountered during the construction of some pile foundation projects. Due to the effect of blasting impact, hole collapse can easily occur in the hole-forming stage of pile foundation construction. In order to prevent hole collapse, it is very necessary to evaluate the stability of a pile hole wall before pile foundation construction. The calculation of hole collapse can usually be attributed to an axisymmetric circular hole stress concentration problem. However, the existing collapse failure theory of pile hole hardly considers the effect of blasting impact load. In view of this, this paper proposes the stability evaluation method of a pile hole wall under blasting impact. Compared with the existing collapse failure theory, the proposed method fully considers the effect of blasting impact stress. Using Mohr–Coulomb strength theory and symmetry analysis, the strength condition of collapse failure is established in this work for accurate evaluation of the stability of a hole wall. The proposed stability evaluation method is demonstrated by a pile foundation construction project of a bridge. Moreover, a shaking table test on the pile hole model was performed to verify the proposed method by experimental data. The results indicate the effectiveness and usability of the proposed method. The proposed method provides a feasible way for the stability analysis of a pile hole wall under blasting impact. |
| first_indexed | 2024-03-10T00:26:56Z |
| format | Article |
| id | doaj.art-b6347cb91d524ebd9cd9f45b14e295e4 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-03-10T00:26:56Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-b6347cb91d524ebd9cd9f45b14e295e42023-11-23T15:33:05ZengMDPI AGSymmetry2073-89942022-01-011417910.3390/sym14010079Stability Evaluation Method of Hole Wall for Bored Pile under Blasting ImpactQiuwei Yang0Zhikun Ba1Zhuo Zhao2Xi Peng3Yun Sun4School of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, ChinaSchool of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, ChinaSchool of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, ChinaSchool of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, ChinaSchool of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, ChinaBlasting impact load may be encountered during the construction of some pile foundation projects. Due to the effect of blasting impact, hole collapse can easily occur in the hole-forming stage of pile foundation construction. In order to prevent hole collapse, it is very necessary to evaluate the stability of a pile hole wall before pile foundation construction. The calculation of hole collapse can usually be attributed to an axisymmetric circular hole stress concentration problem. However, the existing collapse failure theory of pile hole hardly considers the effect of blasting impact load. In view of this, this paper proposes the stability evaluation method of a pile hole wall under blasting impact. Compared with the existing collapse failure theory, the proposed method fully considers the effect of blasting impact stress. Using Mohr–Coulomb strength theory and symmetry analysis, the strength condition of collapse failure is established in this work for accurate evaluation of the stability of a hole wall. The proposed stability evaluation method is demonstrated by a pile foundation construction project of a bridge. Moreover, a shaking table test on the pile hole model was performed to verify the proposed method by experimental data. The results indicate the effectiveness and usability of the proposed method. The proposed method provides a feasible way for the stability analysis of a pile hole wall under blasting impact.https://www.mdpi.com/2073-8994/14/1/79axisymmetricbored pilehole wallstability evaluationblasting impactstrength condition |
| spellingShingle | Qiuwei Yang Zhikun Ba Zhuo Zhao Xi Peng Yun Sun Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact Symmetry axisymmetric bored pile hole wall stability evaluation blasting impact strength condition |
| title | Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact |
| title_full | Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact |
| title_fullStr | Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact |
| title_full_unstemmed | Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact |
| title_short | Stability Evaluation Method of Hole Wall for Bored Pile under Blasting Impact |
| title_sort | stability evaluation method of hole wall for bored pile under blasting impact |
| topic | axisymmetric bored pile hole wall stability evaluation blasting impact strength condition |
| url | https://www.mdpi.com/2073-8994/14/1/79 |
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