Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Railway reinforcing structure and method for underneath pass of shallow-buried and underground-excavated three-hole large-section tunnel
The invention relates to the technical field of long tunnel construction, in particular to a shallow-buried excavation three-hole large-section tunnel underneath crossing railway reinforcing structure and method.The shallow-buried excavation three-hole large-section tunnel underneath crossing railway reinforcing structure comprises a three-hole tunnel and a railway embankment arranged above the three-hole tunnel, and first grouting guide pipes are arranged on soil bodies on the two sides of the railway embankment; pipe shed supporting beams are arranged below the two sides of the railway embankment correspondingly, a plurality of root piles are arranged at the two ends of the bottom of each pipe shed supporting beam correspondingly, and a plurality of second grouting guide pipes are arranged in the middle of each pipe shed supporting beam. According to the method, the root piles and the second grouting guide pipes are grouted, cracks are filled, crack water is blocked, the second grouting guide pipes are constructed at the bottom of the inverted arch for grouting after the initial support construction of the inverted arch of the three-hole tunnel is completed, and the broken surrounding rock at the bottom of the inverted arch is further grouted and reinforced, so that the broken surrounding rock is prevented from being further settled.
本发明涉及长大隧道施工技术领域，具体涉及浅埋暗挖三洞大断面隧道下穿的铁路加固结构及方法，包括三洞隧道以及在三洞隧道上方设置的铁路路堤，在铁路路堤两侧的土体上设置有第一注浆导管，在铁路路堤两侧的下方分别设置有管棚支撑梁，管棚支撑梁的底部两端分别设置有若干个树根桩，管棚支撑梁的中部设置有若干个第二注浆导管。本发明通过向树根桩、第二注浆导管内部注浆，充填裂隙及封堵裂隙水，在三洞隧道仰拱初期支护施工完成后在仰拱底部施工第二注浆导管注浆，进一步注浆加固仰拱底部破碎围岩，防止其进一步的沉降。
Railway reinforcing structure and method for underneath pass of shallow-buried and underground-excavated three-hole large-section tunnel
The invention relates to the technical field of long tunnel construction, in particular to a shallow-buried excavation three-hole large-section tunnel underneath crossing railway reinforcing structure and method.The shallow-buried excavation three-hole large-section tunnel underneath crossing railway reinforcing structure comprises a three-hole tunnel and a railway embankment arranged above the three-hole tunnel, and first grouting guide pipes are arranged on soil bodies on the two sides of the railway embankment; pipe shed supporting beams are arranged below the two sides of the railway embankment correspondingly, a plurality of root piles are arranged at the two ends of the bottom of each pipe shed supporting beam correspondingly, and a plurality of second grouting guide pipes are arranged in the middle of each pipe shed supporting beam. According to the method, the root piles and the second grouting guide pipes are grouted, cracks are filled, crack water is blocked, the second grouting guide pipes are constructed at the bottom of the inverted arch for grouting after the initial support construction of the inverted arch of the three-hole tunnel is completed, and the broken surrounding rock at the bottom of the inverted arch is further grouted and reinforced, so that the broken surrounding rock is prevented from being further settled.
本发明涉及长大隧道施工技术领域，具体涉及浅埋暗挖三洞大断面隧道下穿的铁路加固结构及方法，包括三洞隧道以及在三洞隧道上方设置的铁路路堤，在铁路路堤两侧的土体上设置有第一注浆导管，在铁路路堤两侧的下方分别设置有管棚支撑梁，管棚支撑梁的底部两端分别设置有若干个树根桩，管棚支撑梁的中部设置有若干个第二注浆导管。本发明通过向树根桩、第二注浆导管内部注浆，充填裂隙及封堵裂隙水，在三洞隧道仰拱初期支护施工完成后在仰拱底部施工第二注浆导管注浆，进一步注浆加固仰拱底部破碎围岩，防止其进一步的沉降。
Railway reinforcing structure and method for underneath pass of shallow-buried and underground-excavated three-hole large-section tunnel
浅埋暗挖三洞大断面隧道下穿的铁路加固结构及方法
MAO JINBO (Autor:in) / ZHANG BINBIN (Autor:in) / LI YALONG (Autor:in) / ZHAO HONGGANG (Autor:in) / ZENG YU (Autor:in) / LI DEZENG (Autor:in) / YU HAITAO (Autor:in) / ZHANG XIAOHU (Autor:in) / YU QIANGQIANG (Autor:in)
18.04.2023
Patent
Elektronische Ressource
Chinesisch
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