Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density
Installing a spudcan jack-up rig in sediments with an interbedded sand-over-clay soil profile is still challenging in the offshore industry due to possible punch-through failure. The current methods for predicting the punch-through of spudcan usually ignore sand relative density, which is one of the...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-12-01
|
| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/11/1/33 |
| _version_ | 1797440397877706752 |
|---|---|
| author | Jun Zhao Qingyun Zhu Wenjing Huang Yang Zhang Luyu Liu |
| author_facet | Jun Zhao Qingyun Zhu Wenjing Huang Yang Zhang Luyu Liu |
| author_sort | Jun Zhao |
| collection | DOAJ |
| description | Installing a spudcan jack-up rig in sediments with an interbedded sand-over-clay soil profile is still challenging in the offshore industry due to possible punch-through failure. The current methods for predicting the punch-through of spudcan usually ignore sand relative density, which is one of the most important parameters for sand soil. For multi-layered soils with interbedded sand commonly met in the field, this paper aims to determine the effects of sand relative density on predicting the punch-through failure of spudcan. Modified Mohr-Coulomb (MMC) and extended Tresca models characterized by incorporating a variation of mobilized strength parameters were used to describe the mechanical behaviors of sand and clay. Besides four groups of centrifuge tests, one field case in the South China Sea was also numerically simulated to validate the large deformation finite element (LDFE) analyses conducted in this paper. The results showed that neglect of sand relative density may lead to underestimation of the potential for punch-through failure of spudcan. |
| first_indexed | 2024-03-09T12:07:35Z |
| format | Article |
| id | doaj.art-5b9fe13439e448e58ff953dfabb05f99 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-09T12:07:35Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-5b9fe13439e448e58ff953dfabb05f992023-11-30T22:56:15ZengMDPI AGJournal of Marine Science and Engineering2077-13122022-12-011113310.3390/jmse11010033Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative DensityJun Zhao0Qingyun Zhu1Wenjing Huang2Yang Zhang3Luyu Liu4Department of Offshore Oil and Gas Engineering, College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaDepartment of Offshore Oil and Gas Engineering, College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaDepartment of Offshore Oil and Gas Engineering, College of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, ChinaShandong Marine Aerospace Equipment Technological Innovation Center, Ludong University, Yantai 264000, ChinaYantai CIMC Blue Ocean Technology Co., Ltd., Yantai 264000, ChinaInstalling a spudcan jack-up rig in sediments with an interbedded sand-over-clay soil profile is still challenging in the offshore industry due to possible punch-through failure. The current methods for predicting the punch-through of spudcan usually ignore sand relative density, which is one of the most important parameters for sand soil. For multi-layered soils with interbedded sand commonly met in the field, this paper aims to determine the effects of sand relative density on predicting the punch-through failure of spudcan. Modified Mohr-Coulomb (MMC) and extended Tresca models characterized by incorporating a variation of mobilized strength parameters were used to describe the mechanical behaviors of sand and clay. Besides four groups of centrifuge tests, one field case in the South China Sea was also numerically simulated to validate the large deformation finite element (LDFE) analyses conducted in this paper. The results showed that neglect of sand relative density may lead to underestimation of the potential for punch-through failure of spudcan.https://www.mdpi.com/2077-1312/11/1/33jack-up rigspudcanbearing capacitypunch-throughrelative density of sand |
| spellingShingle | Jun Zhao Qingyun Zhu Wenjing Huang Yang Zhang Luyu Liu Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density Journal of Marine Science and Engineering jack-up rig spudcan bearing capacity punch-through relative density of sand |
| title | Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density |
| title_full | Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density |
| title_fullStr | Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density |
| title_full_unstemmed | Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density |
| title_short | Spudcan Deep Penetration in Multi-Layered Soils Incorporating Sand Relative Density |
| title_sort | spudcan deep penetration in multi layered soils incorporating sand relative density |
| topic | jack-up rig spudcan bearing capacity punch-through relative density of sand |
| url | https://www.mdpi.com/2077-1312/11/1/33 |
| work_keys_str_mv | AT junzhao spudcandeeppenetrationinmultilayeredsoilsincorporatingsandrelativedensity AT qingyunzhu spudcandeeppenetrationinmultilayeredsoilsincorporatingsandrelativedensity AT wenjinghuang spudcandeeppenetrationinmultilayeredsoilsincorporatingsandrelativedensity AT yangzhang spudcandeeppenetrationinmultilayeredsoilsincorporatingsandrelativedensity AT luyuliu spudcandeeppenetrationinmultilayeredsoilsincorporatingsandrelativedensity |