Investigation into the influence of caisson installation process on its capacities in clay

Xiao, Zhong; Lu, Yumin; Wang, Yuanzhan; Tian, Yinghui; Zhao, Yangsheng; Fu, Dengfeng; Zhang, Donghai

doi:10.1016/j.apor.2020.102370

Cited by 25 publications

(3 citation statements)

References 59 publications

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“…Xiao et al [7] studied the changes in penetration resistance and soil flow mechanism during the penetration process of a single bucket foundation, considering the strain softening and rate effect of soil using the coupled Eulerian-Lagrangian (CEL) method. The adverse effects of bucket penetration-induced soil heaving and softening on the ultimate bearing capacity were also studied [8]. Jin et al [9] used the smoothed particle hydrodynamics (SPH) method to simulate the penetration process of bucket foundations in sand.…”

Section: Introductionmentioning

confidence: 99%

“…Large deformation numerical analysis is required to model the installation of the bucket foundation with inner bucket and cruciform skirts in clay. In the literature, there are three large deformation numerical methods by which to simulate the installation of the bucket foundation in clay; these include the ALE method [7], the remeshing and interpolation technique by small strain (RITSS) [8], and the CEL method [7]. For the ALE method, a new mesh is created when the elements have obvious distortion.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Soil Heaving and Penetration Resistance of Bucket Foundation with Inner Bucket and Cruciform Skirts

Xiao

Wang³

et al. 2023

JMSE

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Since concrete is cheaper and more resistant to corrosion than steel, the wide-shallow concrete bucket foundation is being used extensively in ocean engineering. By adding the inner bucket and cruciform skirts, both the bearing capacity and rigidity of the wide-shallow concrete bucket foundation increase significantly. When compared to the hollow steel bucket foundation, the inclusion of thicker skirts, as well as the addition of inner bucket and cruciform skirts, would cause changes to the soil flow mechanism, resulting in soil heave within each compartment and changes in soil strength evolution and penetration resistance during installation in clay. In order to study the influence of the addition of the inner bucket and cruciform skirts on the soil heaving inside each compartment, soil softening and penetration resistance, three-dimensional large deformation finite element (LDFE) models for the bucket foundation with and without inner bucket, and cruciform skirts considering soil remolding were established using the Coupled Eulerian–Lagrangian (CEL) approach. It was found that the inner bucket significantly changes the soil flow and softening of the soil during penetration of the bucket foundation. According to the theoretical analysis and numerical results, the diameter of the optimal inner bucket is equal to 5/8 of the outer diameter. The adhesion coefficient observed in this study falls within the range of 0.5 to 0.8, which is higher than the theoretical value of 0.25 that assumes the soil is fully remolded. The reason for this discrepancy is that the soil is only partially remolded during the actual installation of the bucket foundation. The neglect of the softening of the soil or considering the soil as completely softened will result in significant variation in the predicted penetration resistance; hence, partial softening of the soil should be taken into account.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Soil Heaving and Penetration Resistance of Bucket Foundation with Inner Bucket and Cruciform Skirts

Xiao

Wang³

et al. 2023

JMSE

Self Cite

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“…The caisson is a large box sunk into the ground to some desired depth. It is used as a breakwater to prevent waves and a quay to anchor ships [9][10][11]. As to the counterfort quay wall, a counterfort retaining wall is a cantilever wall with counterforts, or buttresses, attached to the inside face of the wall to further resist lateral thrust [12,13].…”

Section: Introductionmentioning

confidence: 99%

Implementation and evaluation of the underwater crack repair in the hollow concrete block of the gravity wharf

Sun

2021

E3S Web Conf.

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Concrete block quay wall is the most popular type of structures in the gravity wharf. The concrete block can be generally categorized into two types: solid and hollow concrete blocks. Compared to the solid concrete block, the hollow concrete block can reduce the usage of concrete significantly and increase the resistance to sliding and overturning. This paper studied the application of hollow concrete blocks in the gravity wharf of Qingdao Port. It was discovered that in the application, the main problem was the crack development in the hollow concrete blocks. The paper first analysed the reason of crack development in the structure by conducting laboratory model tests. It was found that the contact conditions between two hollow concrete blocks was the key of the crack development. In order to improve the performance of the structure of hollow concrete blocks, an effective scheme, which can repair the cracks in the underwater environment and increase the bearing capacity of the gravity wharf, is proposed. The scheme contains two main procedures. The first step is to use the invented mending material to fill up the cracks. The next is to use the grouting technique to bond the rockfill inside the block holes and the hollow concrete blocks together. The model tests, field tests in 1980s and 2010 have proved the effectiveness of the scheme. This paper provides reference for the construction of similar structures.

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The response of caisson induced by adjacent spudcan penetration in nonhomogeneous clay

Peng,

Qi,

Zhou

et al. 2024

Acta Geotech.

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Investigation into the influence of caisson installation process on its capacities in clay

Cited by 25 publications

References 59 publications

Investigation of Soil Heaving and Penetration Resistance of Bucket Foundation with Inner Bucket and Cruciform Skirts

Investigation of Soil Heaving and Penetration Resistance of Bucket Foundation with Inner Bucket and Cruciform Skirts

Implementation and evaluation of the underwater crack repair in the hollow concrete block of the gravity wharf

The response of caisson induced by adjacent spudcan penetration in nonhomogeneous clay

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