Application and experiment research on diaphragm wall foundation in bridge engineering

2014 ◽  
pp. 813-818
Keyword(s):  
Bridge Engineering ◽  
Diaphragm Wall ◽  
Experiment Research ◽  
Wall Foundation

scholarly journals Hazard Reduction in Deep Excavations Execution

2022 ◽  
Vol 14 (2) ◽  
pp. 868
Author(s):  
Mateusz Frydrych ◽  
Grzegorz Kacprzak ◽  
Paweł Nowak
Keyword(s):  
Cost Optimization ◽  
Bridge Engineering ◽  
Diaphragm Wall ◽  
Modern Approach ◽  
New Approach ◽  
Deep Excavations ◽  
Ground Anchors ◽  
Calculation Methodology ◽  
Diaphragm Walls ◽  
Bridge Technology

In this article, the authors consider a completely new approach in design, which is related to the use of previously un-adapted technologies known to bridge engineering in geotechnical issues for prestressing of diaphragm wall during deep excavations execution. The bridge technology described here is the prestressing of concrete structures. Hazards related to deep excavations and methods of digging them, such as the ceiling method and top&down method, are presented. Current problems in supporting deep excavation slopes are related to the use of extensive quantities of materials (such as steel struts, ground anchors, or concrete and reinforcement steel). The authors’ method helps to achieve a higher level of sustainability, which is important in a modern approach to geotechnical engineering. The non-linear arrangements of the cables according to the occurrence of the prestressing moments for a given phase are presented. Results related to numerical analysis—showing the correctness of the method and cost optimization results, showing possible savings are presented. The article is a part of the set. In the second (already published) article titled “Modern Methods of Diaphragm Walls Design”, the authors present the concept of the calculation methodology for diaphragm wall design.

scholarly journals In-Situ Loading Tests of Diaphragm Wall Foundation and Property of Its Bearing Capacity.

1996 ◽  
pp. 77-86
Author(s):  
Yoshito Maeda ◽  
Yoichi Moriyama ◽  
Ichiro Kuroe ◽  
Junji Sakimoto ◽  
Masato Ito
Keyword(s):  
Bearing Capacity ◽  
Diaphragm Wall ◽  
Loading Tests ◽  
Wall Foundation

scholarly journals Bearing Characteristics of Diaphragm Wall Foundation under Vertical and Combined Load

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Weiming Gong
Keyword(s):  
Diaphragm Wall ◽  
Outer Side ◽  
Soil Core ◽  
Vertical Load ◽  
Calculation Methods ◽  
Combined Load ◽  
Rigid Pile ◽  
Side Resistance ◽  
Overturning Stability ◽  
Wall Foundation

To investigate the bearing characteristics of diaphragm wall foundation under combined load, the results from elasto-plastic analyses of 3D finite element models (FEM) were presented in this study. The vertical load of the diaphragm wall foundation is borne by inner and outer side resistance, resistance of soil core and the end of wall, respectively. Moreover, the sum of end resistance and soil core resistance accounts for about 75% of the vertical load. The mobilization mechanism and distribution of side resistance of the foundation were also analyzed. It is clarified that the mobilization characteristics of inner and outer side resistance of the wall are completely opposite. Due to the combined load, the horizontal load has an amplification effect on the settlement of the foundation. Additionally, the calculation methods of the Eight-component Winkler spring model and rigid pile displacement were used for determining the vertical load-bearing capacity and the overturning stability. A comparison between results from the FEM and the theoretical calculation methods showed that the results of the numerical simulation properly coincided with that of the displacement solution of theoretical model. The conclusions obtained by the above methods all indicate that the foundation has the characteristics of overall overturning failure under the combined load.

A Study on Internal Force Monitoring and Back Analysis of Supporting and Protecting Structure of Rock Deep Foundation

2011 ◽  
Vol 71-78 ◽  
pp. 4717-4720
Author(s):  
Wen Rong Yan ◽  
Yong Hui Liu ◽  
Jing Kun Pi ◽  
Zhen Hua He
Keyword(s):  
Large Scale ◽  
Rapid Development ◽  
Back Analysis ◽  
Suspension Bridge ◽  
Internal Force ◽  
Bridge Engineering ◽  
Diaphragm Wall ◽  
Foundation Engineering ◽  
Deep Foundation ◽  
Wall Deformation

With the rapid development of bridge engineering, the application of supporting and protecting structure that embeds in deep foundation engineering is gradually applied in the design and construction of large-scale suspension bridge. Due to the few amount of stress gauge steel that are pre-installed in the diaphragm wall reinforcement cage in deep foundation engineering and discrete data, it is difficult for the existing frequently-used method to reflect stresses of each part of the wall truly. And for major engineerings, like anchorage foundation, it is necessary to know the stress state of diaphragm wall on time in order to provide basis for decision making for the excavation site. By adopting finite element method, demonstrating the characteristics of its force reversely by using wall deformation and based on the wall deformation data measured in the field, this paper provides strong guarantee for ensuring the safety and reliability of construction.

Lifecycle Management and Maintenance of Marine Bridge Engineering

2019 ◽  
Vol 21 (3) ◽  
pp. 25 ◽  
Author(s):  
Muyu Liu ◽  
Lei Liang ◽  
Hao Wu ◽  
Gang Xu ◽  
Qian Li
Keyword(s):  
Bridge Engineering ◽  
Lifecycle Management

Simulation and experiment research of a 3D flexible tactile sensor

2011 ◽  
Vol 25 (2) ◽  
pp. 129-134
Author(s):  
Guanghui Cao ◽  
Ying Huang ◽  
Wu Zhang ◽  
Caixia Liu
Keyword(s):  
Tactile Sensor ◽  
Experiment Research ◽  
Simulation And Experiment

scholarly journals Review of annual progress of bridge engineering in 2019

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Renda Zhao ◽  
Yuan Yuan ◽  
Xing Wei ◽  
Ruili Shen ◽  
Kaifeng Zheng ◽  
...  
Keyword(s):  
High Performance ◽  
Concrete Bridges ◽  
Bridge Engineering ◽  
Research Progress ◽  
Steel Bridge ◽  
Wind Resistance ◽  
Main Research ◽  
Bridge Model ◽  
Bridge Evaluation ◽  
Bridge Structures

AbstractBridge construction is one of the cores of traffic infrastructure construction. To better develop relevant bridge science, this paper introduces the main research progress in China and abroad in 2019 from 13 aspects, including concrete bridges and the high-performance materials, the latest research on steel-concrete composite girders, advances in box girder and cable-supported bridge analysis theories, advance in steel bridges, the theory of bridge evaluation and reinforcement, bridge model tests and new testing techniques, steel bridge fatigue, wind resistance of bridges, vehicle-bridge interactions, progress in seismic design of bridges, bridge hydrodynamics, bridge informatization and intelligent bridge and prefabricated concrete bridge structures.

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