Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Supporting structure and construction method for shallow-buried and subsurface-excavated tunnel underneath passing existing structure
The invention discloses a supporting structure for a shallow-buried excavation tunnel to pass through an existing structure and a construction method, the supporting structure comprises pipe roof supports arranged at the top and side walls of the tunnel, horizontal jet grouting pile supports arranged at the bottom and arch feet of the tunnel, and sleeve valve pipe curtain grouting reinforcement layers arranged on the peripheries of the pipe roof supports, the pipe roofing support and the horizontal jet grouting pile support are meshed with each other at the arch springing position to form a closed support structure. The supporting structure for the shallow-buried excavation tunnel to penetrate through the existing structure under the shallow-buried excavation tunnel can effectively control underground water to intrude into the tunnel, guarantees tunnel construction safety and normal operation of road traffic on the upper portion of the tunnel, and is particularly suitable for construction of the shallow-buried excavation tunnel of urban underground engineering. The device has obvious advantages when passing through existing structures such as roads, railways, pipelines and the like.
本发明公开了一种浅埋暗挖隧道下穿既有构筑物的支护结构及施工方法，该支护结构包括设置在隧道顶部和侧墙处的管幕支护、设置在隧道底部和拱脚处的水平旋喷桩支护、设置在所述管幕支护外围的袖阀管帷幕注浆加固层，所述管幕支护与所述水平旋喷桩支护在拱脚处相互咬合，形成一个密闭的支护结构。本发明提供的浅埋暗挖隧道下穿既有构筑物的支护结构可有效控制地下水侵入隧道内部，保障隧道施工安全及隧道上部路面交通正常运营，特别适合城市地下工程浅埋暗挖隧道的施工，在下穿既有公路、铁路和管线等既有构筑物时有明显优势。
Supporting structure and construction method for shallow-buried and subsurface-excavated tunnel underneath passing existing structure
The invention discloses a supporting structure for a shallow-buried excavation tunnel to pass through an existing structure and a construction method, the supporting structure comprises pipe roof supports arranged at the top and side walls of the tunnel, horizontal jet grouting pile supports arranged at the bottom and arch feet of the tunnel, and sleeve valve pipe curtain grouting reinforcement layers arranged on the peripheries of the pipe roof supports, the pipe roofing support and the horizontal jet grouting pile support are meshed with each other at the arch springing position to form a closed support structure. The supporting structure for the shallow-buried excavation tunnel to penetrate through the existing structure under the shallow-buried excavation tunnel can effectively control underground water to intrude into the tunnel, guarantees tunnel construction safety and normal operation of road traffic on the upper portion of the tunnel, and is particularly suitable for construction of the shallow-buried excavation tunnel of urban underground engineering. The device has obvious advantages when passing through existing structures such as roads, railways, pipelines and the like.
本发明公开了一种浅埋暗挖隧道下穿既有构筑物的支护结构及施工方法，该支护结构包括设置在隧道顶部和侧墙处的管幕支护、设置在隧道底部和拱脚处的水平旋喷桩支护、设置在所述管幕支护外围的袖阀管帷幕注浆加固层，所述管幕支护与所述水平旋喷桩支护在拱脚处相互咬合，形成一个密闭的支护结构。本发明提供的浅埋暗挖隧道下穿既有构筑物的支护结构可有效控制地下水侵入隧道内部，保障隧道施工安全及隧道上部路面交通正常运营，特别适合城市地下工程浅埋暗挖隧道的施工，在下穿既有公路、铁路和管线等既有构筑物时有明显优势。
Supporting structure and construction method for shallow-buried and subsurface-excavated tunnel underneath passing existing structure
一种浅埋暗挖隧道下穿既有构筑物的支护结构及施工方法
WU KAI (Autor:in) / LONG JIANPING (Autor:in) / SU HONGLIN (Autor:in) / LUO QIANG (Autor:in) / YANG XIUKUN (Autor:in) / GAO BO (Autor:in)
17.01.2023
Patent
Elektronische Ressource
Chinesisch
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