注浆对开挖卸荷下既有地铁隧道竖向变形的影响
张强;杨成永;李洪泉;李冰
注浆对开挖卸荷下既有地铁隧道竖向变形的影响
Influence of grouting on vertical deformation of underlying existing subway tunnel subjected to excavation unloading
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