Modified Calculation Model for Segment Floating in Slurry Shield Tunnel

2021 ◽  
Vol 35 (5) ◽  
pp. 04021068
Author(s):  
Daxin Geng ◽  
Yuchen Hu ◽  
Yalong Jiang ◽  
Ning Wang ◽  
Wentao Hu
Keyword(s):  
Calculation Model ◽  
Shield Tunnel ◽  
Slurry Shield

Key Construction Technologies for Large River-Crossing Slurry Shield Tunnel: Case Study

2021 ◽  
Vol 34 (2) ◽  
pp. 04020118
Author(s):  
Song Zhou ◽  
Guan-Lin Ye ◽  
Lei Han ◽  
Wang Jian-Hua
Keyword(s):  
Large River ◽  
Shield Tunnel ◽  
Slurry Shield

Study on the Technique of Laying Gas Pipes in Xi'Jiang River Slurry Shield Tunnel

ICPTT 2012 ◽  
2012 ◽  
Author(s):  
Xiaojun Zhou ◽  
Jin Wang ◽  
Hongyun Hu ◽  
Xiaofeng Wang
Keyword(s):  
Shield Tunnel ◽  
Slurry Shield

Experiment of Slurry Shield Tunnel Recycling Waste Sand in Sand-Pebble Layer

2014 ◽  
Vol 919-921 ◽  
pp. 1104-1109
Author(s):  
Chen Rui Pang ◽  
Xin Wen
Keyword(s):  
Fine Sand ◽  
The Other ◽  
Shield Tunnel ◽  
Tunnel Construction ◽  
Sand Layer ◽  
Large Space ◽  
City Environment ◽  
Slurry Shield ◽  
Sand Source ◽  
Waste Soil

Waste soil progressing in shield tunnel construction should occupy large space, on the other hand, do harm to city environment. If the waste sand in silt and fine sand layer can be used as sand source of synchronous grouting, it will bring benefits for the enterprise and society. In indoor experiment, we select waste sand in different layers, sieved as sand source, then use the waste sand to produce slurry and compare their strength with the construction slurry’s. The study found, sieved waste sand in silt and fine sand layer can be used as sand source for making synchronous grouting slurry.

Reuse of Discharged Soil from Slurry Shield Tunnel Construction as Synchronous Grouting Material

2022 ◽  
Vol 148 (2) ◽  
Author(s):  
Cong Zhang ◽  
Kui Chen ◽  
Junsheng Yang ◽  
Jinyang Fu ◽  
Shuying Wang ◽  
...  
Keyword(s):  
Shield Tunnel ◽  
Tunnel Construction ◽  
Grouting Material ◽  
Slurry Shield

Study on Design of Working Shaft for Oil and Natural Gas Pipe in Cross River Slurry Shield Tunnel

2013 ◽  
Vol 405-408 ◽  
pp. 1268-1272 ◽  
Author(s):  
Xiao Jun Zhou ◽  
He Ran Yu ◽  
Xiao Feng Wang ◽  
Hong Yun Hu
Keyword(s):  
Natural Gas ◽  
Water Pressure ◽  
Elastic Stability ◽  
Building Envelope ◽  
Concrete Lining ◽  
Shield Tunnel ◽  
Lining Structure ◽  
Oil And Natural Gas ◽  
Slurry Shield ◽  
Shield Machine

In terms of oil and natural gas pipe to be installed in working shaft, and in light of basic dimension of slurry shield machine and its supporting system, required parameters of working shaft, such as its diameter, lining structure, building envelope have been presented in this paper. Meanwhile, the thickness of building envelope and permanent concrete lining for working shaft is also proposed through the analysis of its elastic stability and anti-buoyancy under influence of earth and ground water pressure.

Numerical Simulation on the Stress and Strain of Lining Structure with Double Shield Tunneling Construction

2012 ◽  
Vol 605-607 ◽  
pp. 2425-2429
Author(s):  
Feng Wang ◽  
Tie Jun Cui
Keyword(s):  
Ground Surface ◽  
Calculation Model ◽  
Tunnel Lining ◽  
Concrete Lining ◽  
Shield Tunnel ◽  
Tunnel Construction ◽  
Three Dimension ◽  
Shield Tunneling ◽  
Deformation Law ◽  
Lining Structure

This paper takes the Section 201 of shield construction engineering in Dalian Metro Line 2 as an example to analyze the deformation law of surrounding soil and the tunnel lining structure stress during shield tunnel construction. The shield tunnel construction is simulated dynamically by ADINA and the shield tunnel structure model of the concrete lining is established. This model is a three-dimension nonlinear finite element calculation model concerned with the grouting soil and original state soil. Taking the soil lithology in the upper layer and interact influences, we analyzed the dynamic process of shield construction, soil grouting and lining supporting and the stress distribution in difference reinforced concrete supporting segments and the ground settlement characteristics. Through numerical analysis method to study the deformation law of soil surrounding tunnel and the stress in tunnel lining, we get the results to compare with the results of Peck formula under the same condition. After generating the conclusions, we can provide several suggestions for shield tunneling construction, lining segment design and control of the ground surface settlement during the construction.

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