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bearing capacity 6

Taizhou Bridge 4

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Model testing of tripod caisson foundations in silty clay subjected to eccentric lateral loads

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3, Pages 467-476 doi: 10.1007/s11709-023-0933-6

Abstract: In this study, model tests were conducted to investigate the bearing capacities of tripod caisson foundationssignificantly influenced the bearing capacity of the foundations, particularly for eccentric tripod caissonCompared with eccentric tripod caisson foundations, the traditional tripod foundation has a relativelyBy analyzing the displacement of the caissons, a formula for the rotational center of the tripod caissonfoundation subjected to an eccentric lateral load was derived.

Keywords： tripod caisson foundation silty clay eccentric lateral capacity model tests

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Foundation design of large-scale and deep water caisson

Lu Qinfeng,Zhao Douhuan,Yang Jin

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 9-13

Abstract: Several proposals are studied for the foundation type of the middle tower, especially the comparisonbetween caisson foundation and bored pile foundation with higher pile cape.The caisson foundation is adopted because of its concise structural behavior, larger rigidity and simplerThe bottom segment of the caisson adopts concrete caisson with steel hull, and its upper segment adoptsThe design of the caisson foundation will provided good experience for the future similar projects.

Keywords： Taizhou Bridge large-scale and deep water caisson foundation design

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Research on the depth effect of caisson foundation south anchorage of Taizhou Bridge

Pan Hui,Shao Guojian and Hu Feng

Strategic Study of CAE 2012, Volume 14, Issue 5, Pages 62-65

Abstract:

The foundation of the gravity anchorage is usually simplified as shallowfoundation, which is diseconomy when the depth effect is neglected.Because the embedded depth of caisson foundation south anchorage of Taizhou Bridge is 42 m, FEM(finiteelement method) is utilized to research the depth effect of the caisson foundation in the stabilityIt is clear that the depth effect improves the bearing capacity of anchorage foundation dramatically

Keywords： gravity anchorage caisson foundation depth effect FEM

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Construction technology in huge caisson on the ground

Qiu Qionghai,Lin Fan,Jiang Jianghua

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 14-20

Abstract: The south and north foundation of the anchorages are deep water caisson with rectangular plane size 67.9, fulfillment of concrete in the caisson etc, based on the conditions such as the thick overburden layerat the top of the caisson, the super dimension and the big sinking depth of the caisson.This article gives a brief introduction on construction technologies in huge caisson on the ground andcan be taken as a reference during the construction of the super scale caisson on the ground in the

Keywords： suspension bridge anchorage caisson assembly deep-well dewatering foundation settlement air suction

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Security monitoring technology of the caisson foundation of anchorage in construction

Feng Zhaoxiang,Wang Jinguo,Wang Jian

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 68-72

Abstract: text-align: justify;">Aiming at the structure features and construction methods for the south anchor caissonfoundation of Taizhou Yangtze Highway Bridge, this paper presents a design scheme of security monitoring

Keywords： caisson control index well sinking sidewall earth pressure

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Displacement and force analyses of piles in the pile-caisson composite structure under eccentric inclined

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0957-y

Abstract: A novel anchorage for long-span suspension bridges, called pile-caisson composite structures, was recentlyThis study aims to investigate the displacement and force behavior of piles in a pile-caisson compositecomposite structure, and distribution of soil layers on the performance of the pile-caisson compositethe displacements and improving the stability of the pile-caisson composite structure.composite structure, especially the soil layer around the caisson.

Keywords： composite structure piles foundation suspension bridge 1g model test finite-element analysis

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Foundation form and supportingconstruction technique of offshore wind farm

Qin Shunquan,Zhang Ruixia,Li Juntang

Strategic Study of CAE 2010, Volume 12, Issue 11, Pages 35-39

Abstract: farm base forms and construction methods, several forms of gravity, single pile, group piles, set of caisson, open caisson and suction barrel base were introduced.To the different foundation forms,the self-elevating platform, the semi-submersible barge shallow draft, piling barge, lifting the overall floating and other appropriate foundation construction methods were

Keywords： offshore wind farm foundation form pile foundation jacket base suction barrel base set of caisson fan

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Resistance of large caisson in floating transport considering the influence of air

Junjie ZHENG, Zongzhe LI, Dongan ZHAO, Qiang MA, Rongjun ZHANG,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3, Pages 331-338 doi: 10.1007/s11709-010-0085-3

Abstract: This paper deals with the floating resistance of super large caisson by numerical simulation, and theinfluence of air resistance on the caisson, which is often ignored by previous researchers, is consideredThe floating caisson of Taizhou Highway Bridge’s middle tower pier is investigated, and the softwarepackage FLUENT is used to simulate the floating process of large-scale rounded rectangular steel caisson, and the effect of air resistance on the safety of caisson should be paid sufficient attention to rather

Keywords： large-scale caisson numerical simulation hydraulic resistance air resistance

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Bottom sealing construction technology for extralarge onland caisson

Du Hongchi and Yang Ning

Strategic Study of CAE 2012, Volume 14, Issue 5, Pages 19-22

Abstract: text-align: justify;">The total quantity of concrete exceeds 30 000 m³ for the north anchor caissonThis article presents the bottom sealing construction technology for the caisson of north anchor of Taizhou

Keywords： extra large on land caisson bottom sealilng construction technology for caisson Taizhou Bridge

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Development of Construction Technology and Equipment for Marine Bridges

Zhang Ruixia

Strategic Study of CAE 2019, Volume 21, Issue 3, Pages 5-11 doi: 10.15302/J-SSCAE-2019.03.015

Abstract: foundations, research directions of large size, assembly, and intellectualization are proposed for open caisson

Keywords： marine bridges assembly foundation open caisson large-diameter steel pile cable-stayed bridge suspension

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Water dredging construction method of the super scale caisson

Xia Guoxing,Du Hongchi

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 25-28

Abstract: This paper introduced the water dredging construction method of the super scale caisson based on the

Keywords： super scale caisson water dredging construction

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Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2, Pages 194-202 doi: 10.1007/s11709-015-0292-z

Abstract: Considering the interactions between an embedded foundation and saturated soil, the torsional vibrationsof a cylindrical foundation embedded in a saturated poroelastic medium are analyzed in this paper.Both a rigid foundation and an elastic foundation are considered.Assuming both the side surface and the bottom surface of the foundation are perfectly bonded to soil,of an embedded cylindrical foundation are presented.

Keywords： embedded foundation saturated soil rigid foundation elastic foundation torsional vibration

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The processing and precision control of large thinwall steel caisson

Peng Wu,Lin Fan,Zhao Qiang,Ma Jianle

Strategic Study of CAE 2010, Volume 12, Issue 4, Pages 21-24

Abstract: ">It was discussed the proper choice for processing and welding technology of large thin-wall steel caissonAccording to the caisson's characteristics of large size and thin wall, reasonable welding and assemblycontrol precision in the processes of fabricating and assembling pieces of each unit and the whole caisson

Keywords： large thin-walled steel caisson processing precision control

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Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4, Pages 546-565 doi: 10.1007/s11709-023-0943-4

Abstract: Scouring is one of the primary triggers of failure for bridges across rivers or seas. However, research concerning the scour mechanism of multi-wall foundations (MWFs) remains scarce, hindering the further application of MWFs. In this study, for the first time, the scouring effect caused by unidirectional flow around MWFs was examined numerically using FLOW-3D involving a large-eddy simulation. Initially, the applicability of the scouring model and input parameters was validated using a case study based on published measured data. Subsequently, the scouring effects of four MWFs with different wall arrangements and inflow angles, including the flow field analysis and scour pit and depth, were investigated thoroughly. It was found that the maximum scour depth of MWFs with an inflow angle of 0° was smaller than that of those with an inflow angle of 45°, regardless of the wall arrangement. Meanwhile, changing the inflow angle significantly affects the scour characteristics of MWFs arranged in parallel. In practical engineering, MWFs arranged in parallel are preferred considering the need for scouring resistance. However, a comparative analysis should be performed to consider comprehensively whether to adopt the form of a round wall arrangement when the inflow angle is not 0° or the inflow direction is changeable.

Keywords： multi-wall foundation current-induced scour bridge foundation large-eddy simulation numerical analysis

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Evaluation of seismic reliability of gravity dam-reservoir-inhomogeneous foundation coupled system

Hamid Taghavi GANJI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3, Pages 701-715 doi: 10.1007/s11709-018-0507-1

Abstract: The seismic performance of gravity dam-reservoir-foundation coupled system is investigated utilizingThe methodology is applied to Pine Flat gravity dam and the foundation is considered to be inhomogeneousThe effects of the deconvolution process, number of samples, and foundation inhomogeneity are investigated

Keywords： gravity dams dam-reservoir-foundation interaction seismic reliability inhomogeneous foundation earthquake