Optimization of Double-Ring-Pipe Freezing Scheme for Tunnel Cross-Passage Construction

Xiang Dong Hu; Bing Yi Ji

doi:10.4028/www.scientific.net/AMR.446-449.2262

Paper Titles

The Research of Backfill Grouting Pressure in Shield Tunneling
p.2240

Risk Analysis on the Accident of TBM’s Cutterhead Jamming Caused by Collapse of Tunnel
p.2246

Analysis on the Characteristics of Displacement Field Distribution around the Deep Buried and Great Complex Section Tunnel
p.2251

Crack Propagation Detection and Simulation Research of Jiulong Tunnel
p.2256

Optimization of Double-Ring-Pipe Freezing Scheme for Tunnel Cross-Passage Construction
p.2262

The Analysis of Government Re-Regulation Caused by Externality of Building Energy-Saving
p.2267

Study on the Unload Interval Time of Thin Plate Penetration Test
p.2275

Comparative Analysis of the Influence of Slope Terrain on Characteristics of Horizontal and Vertical Ground Motion Response Spectrum
p.2279

Investigation of Steel Plate Damper with Transverse Slits
p.2285

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 446-449Optimization of Double-Ring-Pipe Freezing Scheme...

Optimization of Double-Ring-Pipe Freezing Scheme for Tunnel Cross-Passage Construction

Abstract:

For numerically simulating the phase change of water in ground freezing process, a correct method is proposed in this paper, that the unfrozen water content in frozen soil is taken into account to calculate the enthalpy value at different temperatures. A calculation example of a cross-passage project in shield tunnel shows that the thickness and the average temperature of the frozen wall calculated by this method are very close to the in-situ monitored data. Based on this method, by comparison of the development rate of thickness and the average temperature of the frozen wall according to different design plans, the ground freezing scheme for the cross-passage is optimized for the shortest duration of freeze in agreement with the work standard. The study could enlighten the design for similar projects in the future.

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Periodical:

Advanced Materials Research (Volumes 446-449)

Pages:

2262-2266

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.446-449.2262

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Online since:

January 2012

Authors:

Xiang Dong Hu, Bing Yi Ji

Keywords:

Artificial Ground Freezing (AGF), Average Temperature, Enthalpy, Frozen Wall Thickness, Latent Heat of Transformation, Unfrozen Water Content

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