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Construction Technique of Shield Crossing under Shanghai-Hangzhou High-speed Railway
Pages: 101-106
Year: Issue:  9
Journal: Urban Mass Transit

Keyword:  metroshield tunnelingcross underground high-speed railwayconstruction technique;
Abstract: 在杭州地铁1号线乔司北站—临平高速铁路站区间,左、右线盾构先后近距离旁侧穿越沪杭高速铁路高架桥墩,并在临平高速铁路站进行盾构进洞施工.为减少盾构掘进施工对高速铁路桥墩的影响,预先在高速铁路桥墩穿越段两侧(即隧道与高速铁路桥墩间)各打设1排φ800 mm钻孔桩、1排φ600 mm旋喷加固桩.盾构在施工参数设定合理的前提下,成功旁侧穿越了高速铁路桥墩.由于受围护桩保护作用,地铁盾构施工引起的高速铁路桥墩沉降、水平位移都在允许范围内.
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