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MODERN TUNNELLING TECHNOLOGY 2024, Vol. 61 Issue (4) :232-243    DOI:
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On Segmenting Design Method of Prefabricated Assembled Secondary Lining for High-speed Railway Tunnels Based on Cross-section Geometric Parameters
(School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031)
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Abstract Based on the technical indicators of the construction clearance and inner lining profile for single-tube double-track high-speed railway tunnels with design speeds of 300-350 km/h, a design method for segmenting prefabricated assembled secondary lining blocks in drill and blast tunnels is analyzed and proposed. Calculation formulas for determining the geometric parameters of prefabricated assembled secondary lining blocks are presented and verified with examples. Additionally, the assembly methods of prefabricated secondary lining blocks with straight joint and staggered joint high-speed railway tunnels are proposed.
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ZHOU Xiaojun
Keywords： High-speed railway tunnel   Prefabricated assembled secondary lining   Geometric parameters   Design method   Assembly method     
Abstract： Based on the technical indicators of the construction clearance and inner lining profile for single-tube double-track high-speed railway tunnels with design speeds of 300-350 km/h, a design method for segmenting prefabricated assembled secondary lining blocks in drill and blast tunnels is analyzed and proposed. Calculation formulas for determining the geometric parameters of prefabricated assembled secondary lining blocks are presented and verified with examples. Additionally, the assembly methods of prefabricated secondary lining blocks with straight joint and staggered joint high-speed railway tunnels are proposed.
Keywords： High-speed railway tunnel,   Prefabricated assembled secondary lining,   Geometric parameters,   Design method,   Assembly method     
Cite this article:   
ZHOU Xiaojun .On Segmenting Design Method of Prefabricated Assembled Secondary Lining for High-speed Railway Tunnels Based on Cross-section Geometric Parameters[J]  MODERN TUNNELLING TECHNOLOGY, 2024,V61(4): 232-243
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