Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tunnel double-trestle inverted arch construction method
The invention discloses a tunnel double-trestle inverted arch construction method. The method comprises the following steps of S1) determining an inverted arch construction section in a tunnel; S2) excavating an inverted arch on the construction surface of the inverted arch construction section to form an inverted arch foundation pit; S3) erecting a simple trestle between the two ends of the inverted arch foundation pit, and then constructing an inverted arch primary support in the inverted arch foundation pit; S4) backfilling the inverted arch foundation pit of the inverted arch primary support to form a travelling crane section; S5) repeating the steps S1)-S4) until the total length of the plurality of travelling crane sections reaches a preset excavation length, and defining a travelling crane section group formed by the plurality of travelling crane sections as a secondary construction section; S6) removing backfill soil in the secondary construction section until the inverted archprimary support is exposed; S7) controlling a hydraulic trestle to walk so that the two ends of the hydraulic trestle are erected at the two ends of the secondary construction section; and S8) constructing a secondary lining inverted arch on the inverted arch primary support of the secondary construction section. According to the construction method, the inverted arch primary support can follow the tunnel face construction in time, it is ensured that the secondary lining inverted arch and the secondary lining of a tunnel arch wall are closed in time to form a ring, and the tunnel constructionsafety is ensured.
一种隧道双栈桥仰拱施工方法，包括：S1)在隧道内确定仰拱施工段；S2)在仰拱施工段的施工面上开挖仰拱，形成仰拱基坑；S3)在仰拱基坑的两端头之间架设简易栈桥，之后在仰拱基坑内施作仰拱初支；S4)回填仰拱初支的仰拱基坑，形成行车段；S5)重复步骤S1)‑S4)，至多个行车段的总长度达到预设开挖长度，将多个行车段所构成的行车段组定义为二次施工段；S6)清除二次施工段中的回填土，直至裸露出仰拱初支；S7)控制液压栈桥行走以使液压栈桥的两端搭设在二次施工段的两端；S8)在二次施工段的仰拱初支上施作二衬仰拱。本发明提供的施工方法，使仰拱初支能够及时跟进隧道掌子面施工，确保二衬仰拱与隧道拱墙二衬及时封闭成环，确保隧道施工安全。
Tunnel double-trestle inverted arch construction method
The invention discloses a tunnel double-trestle inverted arch construction method. The method comprises the following steps of S1) determining an inverted arch construction section in a tunnel; S2) excavating an inverted arch on the construction surface of the inverted arch construction section to form an inverted arch foundation pit; S3) erecting a simple trestle between the two ends of the inverted arch foundation pit, and then constructing an inverted arch primary support in the inverted arch foundation pit; S4) backfilling the inverted arch foundation pit of the inverted arch primary support to form a travelling crane section; S5) repeating the steps S1)-S4) until the total length of the plurality of travelling crane sections reaches a preset excavation length, and defining a travelling crane section group formed by the plurality of travelling crane sections as a secondary construction section; S6) removing backfill soil in the secondary construction section until the inverted archprimary support is exposed; S7) controlling a hydraulic trestle to walk so that the two ends of the hydraulic trestle are erected at the two ends of the secondary construction section; and S8) constructing a secondary lining inverted arch on the inverted arch primary support of the secondary construction section. According to the construction method, the inverted arch primary support can follow the tunnel face construction in time, it is ensured that the secondary lining inverted arch and the secondary lining of a tunnel arch wall are closed in time to form a ring, and the tunnel constructionsafety is ensured.
一种隧道双栈桥仰拱施工方法，包括：S1)在隧道内确定仰拱施工段；S2)在仰拱施工段的施工面上开挖仰拱，形成仰拱基坑；S3)在仰拱基坑的两端头之间架设简易栈桥，之后在仰拱基坑内施作仰拱初支；S4)回填仰拱初支的仰拱基坑，形成行车段；S5)重复步骤S1)‑S4)，至多个行车段的总长度达到预设开挖长度，将多个行车段所构成的行车段组定义为二次施工段；S6)清除二次施工段中的回填土，直至裸露出仰拱初支；S7)控制液压栈桥行走以使液压栈桥的两端搭设在二次施工段的两端；S8)在二次施工段的仰拱初支上施作二衬仰拱。本发明提供的施工方法，使仰拱初支能够及时跟进隧道掌子面施工，确保二衬仰拱与隧道拱墙二衬及时封闭成环，确保隧道施工安全。
Tunnel double-trestle inverted arch construction method
隧道双栈桥仰拱施工方法
ZHANG XU (Autor:in) / LI JIANJUN (Autor:in) / LUO WENXUE (Autor:in) / WEI YAKE (Autor:in) / MA XIAOFEI (Autor:in) / CHEN XINGQIANG (Autor:in) / LI YONGYONG (Autor:in) / WANG PAN (Autor:in) / HE HUIMENG (Autor:in) / OU YUANPING (Autor:in)
25.08.2020
Patent
Elektronische Ressource
Chinesisch
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