An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model
The scouring effect is widely acknowledged as a primary contributor to the weakening in the bearing performance of offshore piles; it often results in asymmetric scour patterns around the pile. To meticulously examine the impact of three-dimensional asymmetric local scour on the lateral bearing perf...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/7/3056 |
| _version_ | 1797212859198865408 |
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| author | Songyang Wang Jianjun Ma Chaosheng Wang Fengjun Liu Da Li |
| author_facet | Songyang Wang Jianjun Ma Chaosheng Wang Fengjun Liu Da Li |
| author_sort | Songyang Wang |
| collection | DOAJ |
| description | The scouring effect is widely acknowledged as a primary contributor to the weakening in the bearing performance of offshore piles; it often results in asymmetric scour patterns around the pile. To meticulously examine the impact of three-dimensional asymmetric local scour on the lateral bearing performance of a single pile, the Boussinesq solution is employed to determine the effective stress within the soil encompassing the pile, considering the presence of a three-dimensional asymmetric local scour hole. Utilizing the strain wedge model, the calculation method for the lateral bearing performance of a single pile under the condition of three-dimensional asymmetric local scour is established. The validity of this approach is established, and parameter analysis unveils the effect of varying sizes of three-dimensional asymmetric scour holes on the mechanical properties and displacement performance of a single pile. The analysis reveals that, as scouring dimensions around the pile escalate, the impact of scouring on single-pile lateral displacement and internal forces intensifies, leading to a decrease in the lateral bearing performance of a single pile. At a constant scour depth, the bottom area of the upstream scour hole significantly influences the displacement performance of a single pile. When the bottom length <i>S</i><sub>wb1</sub> of the upstream scour hole grows by 1 time, 4 times, and 8 times, the lateral displacement of a single pile at a buried depth of 6 m is augmented by approximately 0.41%, 1.65%, and 2.06%, respectively. The simplified model obtained via the modified strain wedge model and Boussinesq solution can provide a theoretical basis for the preliminary design of a single pile under asymmetric scour hole conditions. |
| first_indexed | 2024-04-24T10:49:04Z |
| format | Article |
| id | doaj.art-90f024b1922f4425a33c695d680f7b09 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-24T10:49:04Z |
| publishDate | 2024-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-90f024b1922f4425a33c695d680f7b092024-04-12T13:15:34ZengMDPI AGApplied Sciences2076-34172024-04-01147305610.3390/app14073056An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge ModelSongyang Wang0Jianjun Ma1Chaosheng Wang2Fengjun Liu3Da Li4School of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang 471023, ChinaSchool of Civil Engineering and Architecture, Henan University of Science and Technology, Luoyang 471023, ChinaThe scouring effect is widely acknowledged as a primary contributor to the weakening in the bearing performance of offshore piles; it often results in asymmetric scour patterns around the pile. To meticulously examine the impact of three-dimensional asymmetric local scour on the lateral bearing performance of a single pile, the Boussinesq solution is employed to determine the effective stress within the soil encompassing the pile, considering the presence of a three-dimensional asymmetric local scour hole. Utilizing the strain wedge model, the calculation method for the lateral bearing performance of a single pile under the condition of three-dimensional asymmetric local scour is established. The validity of this approach is established, and parameter analysis unveils the effect of varying sizes of three-dimensional asymmetric scour holes on the mechanical properties and displacement performance of a single pile. The analysis reveals that, as scouring dimensions around the pile escalate, the impact of scouring on single-pile lateral displacement and internal forces intensifies, leading to a decrease in the lateral bearing performance of a single pile. At a constant scour depth, the bottom area of the upstream scour hole significantly influences the displacement performance of a single pile. When the bottom length <i>S</i><sub>wb1</sub> of the upstream scour hole grows by 1 time, 4 times, and 8 times, the lateral displacement of a single pile at a buried depth of 6 m is augmented by approximately 0.41%, 1.65%, and 2.06%, respectively. The simplified model obtained via the modified strain wedge model and Boussinesq solution can provide a theoretical basis for the preliminary design of a single pile under asymmetric scour hole conditions.https://www.mdpi.com/2076-3417/14/7/3056single pilelateral bearing performancethree-dimensional asymmetric local scour holestrain wedgeBoussinesq solution |
| spellingShingle | Songyang Wang Jianjun Ma Chaosheng Wang Fengjun Liu Da Li An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model Applied Sciences single pile lateral bearing performance three-dimensional asymmetric local scour hole strain wedge Boussinesq solution |
| title | An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model |
| title_full | An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model |
| title_fullStr | An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model |
| title_full_unstemmed | An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model |
| title_short | An Investigation into the Lateral Bearing Performance of a Single Pile Embedded at a Three-Dimensional Asymmetric Local Scour Site Using the Modified Strain Wedge Model |
| title_sort | investigation into the lateral bearing performance of a single pile embedded at a three dimensional asymmetric local scour site using the modified strain wedge model |
| topic | single pile lateral bearing performance three-dimensional asymmetric local scour hole strain wedge Boussinesq solution |
| url | https://www.mdpi.com/2076-3417/14/7/3056 |
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