Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Arch support construction method in tunnel excavation mode
The invention relates to the field of bridge construction, in particular to a tunnel excavation type skewback construction method which comprises the following steps: partitioning a skewback foundation into an upper tunnel, a middle tunnel and a lower tunnel; slope excavation is conducted to the bottom face position of a middle tunnel outlet, and a construction platform is formed; a middle tunnel advance support is constructed, a middle tunnel is excavated, and the excavation direction is from the river center to the bank side; after the middle tunnel is excavated in place, the lower tunnel is excavated; an arch support foundation lower area and a backfill area are poured in the middle tunnel and the lower tunnel; after concrete in the lower area and the backfill area of the skewback foundation is formed, an upper tunnel is excavated, and the excavation direction is from the river center to the bank side; according to the method, firstly, the skewback foundation is partitioned, then tunnel excavation is adopted for each partition, the skewback foundation is formed through pouring, the natural sloping excavation amount can be reduced, the spoil amount can be reduced, and the influence on the environment is small.
本发明涉及桥梁施工领域，具体涉及一种隧道开挖方式的拱座施工方法，包括如下步骤：将拱座基础分区，分为上部隧道、中部隧道和下部隧道；放坡开挖至中部隧道出口的底面位置，形成施工平台；施工中部隧道超前支护，并开挖中部隧道，开挖方向为从河心向岸侧；中部隧道开挖到位以后，开挖下部隧道；在中部隧道和下部隧道内浇筑拱座基础下部区和回填区；待拱座基础下部区及回填区混凝土成型后，开挖上部隧道，开挖方向为从河心向岸侧；本方法首先将拱座基础分区，然后针对每个分区采用隧道开挖，并浇筑成型拱座基础，可减少自然放坡开挖量，减少弃土量，对环境影响较小。
Arch support construction method in tunnel excavation mode
The invention relates to the field of bridge construction, in particular to a tunnel excavation type skewback construction method which comprises the following steps: partitioning a skewback foundation into an upper tunnel, a middle tunnel and a lower tunnel; slope excavation is conducted to the bottom face position of a middle tunnel outlet, and a construction platform is formed; a middle tunnel advance support is constructed, a middle tunnel is excavated, and the excavation direction is from the river center to the bank side; after the middle tunnel is excavated in place, the lower tunnel is excavated; an arch support foundation lower area and a backfill area are poured in the middle tunnel and the lower tunnel; after concrete in the lower area and the backfill area of the skewback foundation is formed, an upper tunnel is excavated, and the excavation direction is from the river center to the bank side; according to the method, firstly, the skewback foundation is partitioned, then tunnel excavation is adopted for each partition, the skewback foundation is formed through pouring, the natural sloping excavation amount can be reduced, the spoil amount can be reduced, and the influence on the environment is small.
本发明涉及桥梁施工领域，具体涉及一种隧道开挖方式的拱座施工方法，包括如下步骤：将拱座基础分区，分为上部隧道、中部隧道和下部隧道；放坡开挖至中部隧道出口的底面位置，形成施工平台；施工中部隧道超前支护，并开挖中部隧道，开挖方向为从河心向岸侧；中部隧道开挖到位以后，开挖下部隧道；在中部隧道和下部隧道内浇筑拱座基础下部区和回填区；待拱座基础下部区及回填区混凝土成型后，开挖上部隧道，开挖方向为从河心向岸侧；本方法首先将拱座基础分区，然后针对每个分区采用隧道开挖，并浇筑成型拱座基础，可减少自然放坡开挖量，减少弃土量，对环境影响较小。
Arch support construction method in tunnel excavation mode
一种隧道开挖方式的拱座施工方法
LIAO CHENFENG (Autor:in) / LI DONGJIA (Autor:in) / SHANG CONGJIN (Autor:in) / LUO FUYUAN (Autor:in) / YANG SHANQING (Autor:in) / LIU MENGLIN (Autor:in) / MAO LIMIN (Autor:in) / CHEN XIN (Autor:in) / ZHAO YAN (Autor:in) / ZHANG XIAOYU (Autor:in)
03.01.2025
Patent
Elektronische Ressource
Chinesisch
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