Open AccessComparison and Selection of Reinforcement Schemes for Shield Tunnelling Close Crossing High-speed Railway Viaduct Group
Author(s) -
Bo Wu,
Ziyi Zhang,
Wei Huang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/267/4/042119
Subject(s) - pile , reinforcement , bridge (graph theory) , structural engineering , engineering , foundation (evidence) , geotechnical engineering , bracing , shield , displacement (psychology) , geology , law , medicine , psychology , political science , brace , psychotherapist , petrology
Numerical simulation is carried out of the group pile foundation project of the shield tunnel on Nanjing metro airport line which crossing Beijing-Shanghai high-speed railway. The paper analysed the characteristics of the horizontal displacement along bridge of the pile foundation during the whole crossing process. On this basis, the reinforcement effects of grouting reinforcement, longitudinal beam and cross bracing reinforcement, bored cast-in-place pile reinforcement are comparative analysed with the horizontal displacement alone bridge of pile as the evaluation index. Also, the feasible program of the shelter pile reinforcement could be determined by combing with the construction process and conditions.