The Finite Element Analysis of the Deep Foundation Pit Excavation and the Model Test

2011 ◽  
Vol 368-373 ◽  
pp. 542-548
Author(s):  
Chi Yan ◽  
Ri Song Qin ◽  
Hong Yue Sun
Keyword(s):  
Finite Element ◽  
Strength Theory ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Element Analysis ◽  
Finite Element Program ◽  
Deep Foundation Pit ◽  
Calculation Results ◽  
Element Program ◽  
Fracture Theory

The fracture theory of soil was a new developing problem in recent year. In this paper, the basic principle of fracture mechanics and the strength theory of soil were combined, and the soil-cracking strength theory was adopted to build a constitutive relation for cracked soils. In order to use such theory and to analyze how the cracked soils effect on retaining structure, we developed an elastoplastic finite element program. Finally, the calculation results from this program were compared with the surveying measured in model testing.

Non-Linear Three-Dimensional Finite Element Analysis of Some Extremely Deep Foundation Pit Support

2013 ◽  
Vol 443 ◽  
pp. 79-83
Author(s):  
Zhen Xi Yu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Simulation Analysis ◽  
Three Dimensional ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Element Analysis ◽  
Deep Foundation Pit ◽  
Three Dimensional Finite Element ◽  
Support Engineering

In recent years, with the enhancement of overall national strength in China, the computer simulation technology has been developed rapidly and widely applied to engineering construction. Particularly, investment proportion of the technology in deep foundation pit engineering is immense. Yet affected by national conditions in China, the construction and application of deep foundation pit engineering have many extensive factors. It also results in insufficient vigor of finite element analysis of deep foundation pit support construction. In this way, construction problems arise frequently under the condition that there exist buildings around. With some deep foundation pit support engineering, the thesis conducts simulation analysis of the engineering through the technology of nonlinear three-dimensional finite element.Project profile

Finite Element Analysis on Energy Dissipation Ability of Geo-Materials under Impact Load

2012 ◽  
Vol 224 ◽  
pp. 381-384
Author(s):  
Wen Bin Liu ◽  
Shu Wang Yan ◽  
Wu Gang Wang ◽  
Miao Yu
Keyword(s):  
Finite Element ◽  
Clay Soil ◽  
Impact Load ◽  
Experiment Data ◽  
Element Analysis ◽  
Finite Element Program ◽  
Calculation Results ◽  
Element Program ◽  
Clay Layers ◽  
Current Code

The non-linear finite element program Ls-DYNA/ANSYS is applied to simulate numerically the capacity for the geo-materials to dissipate the energy induced by the falling objects. The calculation results for the crushed stone coincide well with those recommended by the current Code of《DNV-rp-f107_2010》, which is on the basis of experiment data, implying the feasibility of using this program to estimate the energy dissipating capacity of the geo-materials. Because little research has been performed with clay soil, the program Ls-DYNA/ANSYS is used to predict the energy dissipating capacity of clay layers.

Research on Seepage Characteristics of Deep Cut Canal under Dewatering Well

2013 ◽  
Vol 438-439 ◽  
pp. 588-592
Author(s):  
Kai Yun Yang ◽  
Xiang Yu Li ◽  
Lin Hao Li ◽  
Quan Long Li
Keyword(s):  
Finite Element ◽  
Element Model ◽  
Saturation Line ◽  
Deep Foundation ◽  
Seepage Field ◽  
Foundation Pit ◽  
Element Analysis ◽  
Deep Foundation Pit ◽  
Geological Conditions ◽  
Seepage Characteristics

In view of the problems of complex geological conditions with high underground water level, large permeability coefficient of soil and the presence of large seepage hazard of deep cut canal and deep foundation pit project of South-to-North Water Transfer Project, China, research on seepage characteristics of digging canals under dewatering well is carried out by finite element analysis, and the FORTRAN procedure is programmed. The three-dimensional finite element model of a digging canal is built, and the seepage field of the different conditions of the canal is simulated, the water head distribution, saturation line and leakages are obtained, and the rules and characteristics of steady seepage field under design impervious system are analyzed. The results indicate that the method can exactly determine the key overflow point and saturation line of canal, and well predict seepage field in canal. The results should be of guiding significance to design and construct retaining engineering in deep cut canal and deep foundation pit.

Research and Use of the Steel Sheet Pile Supporting Structure in the Yellow River Delta

2011 ◽  
Vol 243-249 ◽  
pp. 2684-2689
Author(s):  
Qing Zhi Yan ◽  
Jiang Rao ◽  
Zi Qiang Xie
Keyword(s):  
Steel Sheet ◽  
Yellow River ◽  
Engineering Application ◽  
Yellow River Delta ◽  
Sheet Pile ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Finite Element Program ◽  
Deep Foundation Pit ◽  
Element Program

The excavation and support problem of deep foundation pit is very interested by construction engineers with the development of the high buildings in cities and exploration utilization of the underground pace. Stability and economy are the most important problems in deep foundation pit support. This paper mainly studied on stability and economy of steel sheet pile support structure. The steel sheet pile support technique was fully introduced and analyzed here, using a combined method of theoretical guidance, calculation analysis, engineering application with finite element program simulation and market investigation.

Experiment and ANSYS Finite Element Analysis on Concrete Filled Thin-Walled Steel Tube Joints

2013 ◽  
Vol 321-324 ◽  
pp. 234-238
Author(s):  
Li Jian
Keyword(s):  
Finite Element ◽  
Composite Beam ◽  
Steel Tube ◽  
Test Results ◽  
Element Analysis ◽  
Finite Element Program ◽  
Mechanics Performance ◽  
Calculation Results ◽  
Element Program ◽  
Thin Walled

The experiment on joints of concrete filled thin-walled steel tube and the composite beam is carried out in 8 specimens, and mechanics performance of all type joints is concluded in general. The test results indicate that each joint has higher bearing capacity and better ductility performance. Solid65 and Shell181 Elements of ANSYS finite element program are adopted to simulate concrete and thin-walled steel sheet of composite beams and columns. Calculation results in theories proved conformity with the test in primary.

Finite Element Analysis on Energy Dissipation Ability of Geo-Materials under Impact Load

2013 ◽  
Vol 838-841 ◽  
pp. 811-814
Author(s):  
Shu Wang Yan ◽  
Chang Yi Yu ◽  
Wu Gang Wang ◽  
Guo Min Sun ◽  
Zhen Ming Lei
Keyword(s):  
Finite Element ◽  
Clay Soil ◽  
Impact Load ◽  
Experiment Data ◽  
Element Analysis ◽  
Finite Element Program ◽  
Calculation Results ◽  
Element Program ◽  
Clay Layers ◽  
Current Code

The non-linear finite element program Ls-DYNA/ANSYS is applied to simulate numerically the capacity for the geo-materials to dissipate the energy induced by the falling objects. The calculation results for the crushed stone coincide well with those recommended by the current Code of《DNV-rp-f107_2010》, which is on the basis of experiment data, implying the feasibility of using this program to estimate the energy dissipating capacity of the geo-materials. Because little research has been performed with clay soil, the program Ls-DYNA/ANSYS is used to predict the energy dissipating capacity of clay layers.

Finite Element Analysis on the Deformation of Energy-Saving Wire-Mesh Frame Wallboard

2014 ◽  
Vol 501-504 ◽  
pp. 731-735
Author(s):  
Li Zhang ◽  
Kang Li
Keyword(s):  
Finite Element ◽  
Energy Saving ◽  
Theoretical Basis ◽  
Steel Wire ◽  
Wire Mesh ◽  
Design Parameters ◽  
Element Analysis ◽  
Finite Element Program ◽  
Element Program ◽  
Influence Degree

This paper analyzes the influence degree of related design parameters of wire-mesh frame wallboard on deformation through finite element program, providing theoretical basis for the design and test of steel wire rack energy-saving wallboard.

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