Study on optimization design for the diaphragm wall of a subway station

2015 ◽  
pp. 153-156
Author(s):  
Xun Liu ◽  
Xiu Sui ◽  
Jun Li
Keyword(s):  
Optimization Design ◽  
Diaphragm Wall ◽  
Subway Station

3D Aided Design Solution for Integrated Pipe Network of Subway Station

2013 ◽  
Vol 368-370 ◽  
pp. 1438-1442
Author(s):  
Yong Zhang ◽  
Qian Kun Wang ◽  
Chen Bin
Keyword(s):  
Design Process ◽  
Optimization Design ◽  
3D Visualization ◽  
Design Method ◽  
Secondary Development ◽  
Design Solution ◽  
Subway Station ◽  
Pipe Network ◽  
Analysis Technique ◽  
Aided Design

Based on analysis of problems existing in the design process of integrated pip network, the authors put forward the aided design method of converting 2D design drawings to 3D visualization model. Based on the 3D aided design workflow, the solution of 3D aided design is proposed, the kernel contains include: making drawing standard and development of the plug-in, selection and secondary development of 3D platform, report of conflict analysis and optimization design. The key analysis technique is discussed in the end of this paper.

Influence of diaphragm wall on seismic responses of large unequal-span subway station in liquefiable soils

2019 ◽  
Vol 91 ◽  
pp. 102988 ◽  
Author(s):  
Jianning Wang ◽  
Guowei Ma ◽  
Haiyang Zhuang ◽  
Yuanming Dou ◽  
Jisai Fu
Keyword(s):  
Diaphragm Wall ◽  
Subway Station ◽  
Seismic Responses

Study on Failure Mode of Underground Diaphragm Wall in Soft Soil Area

2013 ◽  
Vol 405-408 ◽  
pp. 1375-1382
Author(s):  
Shi Min Zhang ◽  
Xiang Li ◽  
Deng Hui Li ◽  
Zhi Ding ◽  
Gang Wei
Keyword(s):  
Failure Mode ◽  
Optimization Design ◽  
Failure Modes ◽  
Soft Soil ◽  
Diaphragm Wall ◽  
Wall Structure ◽  
Prevention Measures ◽  
Foundation Pit ◽  
Soft Soil Area ◽  
Soil Area

Zhejiang Province is Located in the Yangtze River Delta which the Soft Soil has Large Thickness and the High Underground Water Level.There is a Higher Requirement for the Optimization Design and Safety Construction of Deep Foundation.According to the Summary and Analysis of some Common Cause Failure of the Foundation Pit Engineering，we can Conclude that there are some Failure Mode in Soft Soil Area of Underground Diaphragm Wall Structure such as Foundation Pit System Instability，Basal Failure，Piping and the Flow of Sand Damage，Support Structure Instability and the Support of Low Strength or Buckling，and Summarizes some Prevention Measures on the Destruction of Underground Diaphragm Wall in the Light of these Failure Modes.

Effects of Shallow Gas on Diaphragm Wall Trenching Construction of Hangzhou Metro

2011 ◽  
Vol 255-260 ◽  
pp. 3993-3997 ◽  
Author(s):  
Yong Wang ◽  
Ling Wei Kong ◽  
Ai Guo Guo
Keyword(s):  
Adverse Effects ◽  
Specific Gravity ◽  
Working Conditions ◽  
Media Effects ◽  
Analytical Method ◽  
Diaphragm Wall ◽  
Subway Station ◽  
Shallow Gas ◽  
Slurry Trench ◽  
Multi Phase

Considering adverse effects of shallow gas geology on Hangzhou Metro construction, based on the fluid-solid coupling analytical method of multi-phase media, effects of shallow gas on diaphragm wall trenching construction were examined by using FLAC-2D software. In combination with the diaphragm works of a typical subway station in the region buried shallow gas, the deformation on slurry trench of diaphragm wall were analyzed under working conditions using different specific gravity slurry. Results show that shallow gas escape of the stratum significantly affects stability of the groove wall, easily leading to collapse of the soil and resulting in the concrete diaphragm wall with quality problems such as honeycomb, reducing diameter, bulging, breaking zone and etc. In trenching construction of the diaphragm wall, increasing the specific gravity of slurry appropriately is an effective way to reduce adverse effects of the shallow gas, but it should not be too large. A suitable range of mud weight varies from 1.06 to 1.10.

Numerical Simulation of Subway Station Constructed Using Top-Down Method

2012 ◽  
Vol 446-449 ◽  
pp. 3757-3761
Author(s):  
Tie Cheng Wang ◽  
Xing Hua Du ◽  
Hai Long Zhao
Keyword(s):  
Internal Force ◽  
Diaphragm Wall ◽  
Subway Station ◽  
Horizontal Plate ◽  
Horizontal Deformation ◽  
Soil Pressure ◽  
Top Down ◽  
Deformation Curves ◽  
Stress And Deformation ◽  
Station Structure

This paper mainly deals with the stress and deformation behavior of the subway station structure during the excavation, the construction of the station constructed using top-down method is simulated with ANSYS. The research results show that the diaphragm wall, column and horizontal plate uplift and sink alternately under the influence of foundation rebound, gravity and construction load. Under the influence of lateral soil pressure and horizontal plate, the horizontal deformation curves of the diaphragm wall is similar to bow at first and then to s shape. The huge horizontal stiffness of the plate can control the horizontal deformation of the diaphragm wall effectively. The most disadvantageous positions of internal force in each condition are shown finally, and the results can be referenced by similar engineering.

Numerical Simulation of Ground Surface Settlement Induced by Open-Cut Subway Station

2014 ◽  
Vol 522-524 ◽  
pp. 1689-1692
Author(s):  
Yan Hui Guo ◽  
Ke Peng Hou
Keyword(s):  
Optimization Design ◽  
Three Dimensional ◽  
Ground Surface ◽  
Surface Settlement ◽  
Subway Station ◽  
Structure Stability ◽  
Deep Foundation ◽  
Foundation Pit ◽  
Ground Surface Settlement ◽  
Survey Results

Ground surface settlement induced by open-cut subway station has important implications for construction safety. Based on a subway station background of the line 3 west extension engineering of kunming metro line co.LTD. On the basis of geological survey results and indoor geotechnical mechanics experiment, the 3D geological model was established by three-dimensional finite difference method FLAC3D. Ground surface settlement Law and Retaining structure stability induced by subway station construction was analyzed. The analysis results provides a reference for structure optimization design and scientific construction of similar deep foundation pit engineering.

Sign in / Sign up

Export Citation Format

Share Document