Numerical Simulation Study on Three-Step Method Construction for Neighborhood Tunnel

Ling Ling Cai; Xiu Yuan Yang; Ning Guo

doi:10.4028/www.scientific.net/AMM.580-583.1327

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Impact of Urban Rail Transit on Residential Property Values in Hangzhou
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A Numerical Investigation on Time-Dependent Failure of Tunnels Based on the Long-Term Strength Characteristics of Rocks
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Measurement and Research on Broken Zone of Surrounding Rock in Cha Zhen Tunnel
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Numerical Simulation Study on Three-Step Method Construction for Neighborhood Tunnel
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Study on Pressure Observation of Fully Mechanized Caving Faces in Coal Seams with Rock Burst Danger in Xiagou Coal Mine
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Research on Geostatic Stress and Optimization of Bolt Support for Tilted Strata Roadway
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Construction Monitoring Technology Analysis for Railway Tunnel
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Application of Grouting Reinforcement Technology in Pingshan Shaft Station
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Numerical Simulation Study on Three-Step Method...

Numerical Simulation Study on Three-Step Method Construction for Neighborhood Tunnel

Abstract:

When crossing difficult terrain or extreme regional geological conditions encountered, there are difficulties in laying road routes, the spacing between two adjacent tunnels is limited. Neighborhood tunnel is a form of tunnel structure between separate and arch ones, less affected by the topography. It is more conveniently and easier to control the cost. Surrounding rock deformation mechanism with construction of three-step method is more complex, and therefore a reasonable means of construction technology and support is essential. Taking a certain neighborhood tunnel highway engineering background, aimed to provide guidance for follow-up monitoring and support, we use numerical simulation software FLAC^3D on three-step method excavation construction. Rational creep analysis of geotechnical model and calculation parameters is selected. It helps to calculation and analysis the mechanical response of tunnel surrounding rock characteristics and clarify the tendency of displacement and stress fields.

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Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

1327-1330

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.1327

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Online since:

July 2014

Authors:

Ling Ling Cai, Xiu Yuan Yang, Ning Guo

Keywords:

Displacement Field, Neighborhood Tunnel, Numerical Simulation, Stress Field

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