Analysis on the Vertical Bearing Capacity of Anchorage Foundations with Wellhead Suction Anchors Based on CEL Method

SUN Kai; LI Bo; KOU Beibei; MI Yuqi; LI Jing; LI Bin; MA Huihuan

doi:10.13204/j.gyjzG22071601

Volume 53 Issue 6

Jun. 2023

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SUN Kai, LI Bo, KOU Beibei, MI Yuqi, LI Jing, LI Bin, MA Huihuan. Analysis on the Vertical Bearing Capacity of Anchorage Foundations with Wellhead Suction Anchors Based on CEL Method[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 25-30. doi: 10.13204/j.gyjzG22071601

Citation:

SUN Kai, LI Bo, KOU Beibei, MI Yuqi, LI Jing, LI Bin, MA Huihuan. Analysis on the Vertical Bearing Capacity of Anchorage Foundations with Wellhead Suction Anchors Based on CEL Method[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 25-30. doi: 10.13204/j.gyjzG22071601

Citation:

SUN Kai, LI Bo, KOU Beibei, MI Yuqi, LI Jing, LI Bin, MA Huihuan. Analysis on the Vertical Bearing Capacity of Anchorage Foundations with Wellhead Suction Anchors Based on CEL Method[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(6): 25-30. doi: 10.13204/j.gyjzG22071601

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Analysis on the Vertical Bearing Capacity of Anchorage Foundations with Wellhead Suction Anchors Based on CEL Method

doi: 10.13204/j.gyjzG22071601

SUN Kai^1,2,
LI Bo^{1
,
,},
KOU Beibei¹,
MI Yuqi²,
LI Jing¹,
LI Bin¹,
MA Huihuan^2,3

1. Guangzhou Marine Geological Survey, China Geological Survey, Guangzhou 510075, China;
2. School of Civil Engineering, Sun Yat-Sen University, Zhuhai 519082, China;
3. Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai), Zhuhai 519000, China

Received Date: 2022-07-16
Available Online: 2023-08-18

Abstract

Abstract

The wellhead suction anchor has been first used in the second round of trial production tests for natural gas hydrates in China. Be directed against anchorage foundations with wellheed suction anchors, the mechanism of the foundation under vertical loads was studied. The three-dimensional model of the foundation was constructed by finite element software, and the coupled Euler-Lagrangian (CEL) method was used to simulate the vertical large-deformation process of the foundation. The validity of the CEL method for analyzing the ultimate bearing capacity of the wellhead suction anchor was verified by comparing the numerical analysis results with the theoretical calculation results. By comparing between the characteristics of vertical displacement-load curves of traditional suction anchors and wellhead suction anchors, it was found that the side wall serionsly confined the soil plug inside wellhead suction anchors, and its vertical ultimate bearing capacity was higher. The model coupled the Euler-Lagrangian method provided reference to the optimal design of anchorage foundations with wellhead suction anchors.
- wellhead suction anchor,
- vertical bearing capacity,
- CEL analysis method,
- large-deformation simulation,
- soil plug

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References(23)

References

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