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A platform for research: civil engineering, architecture and urbanism
Tunnel foundation structure at bridge-tunnel connection position and construction method of tunnel foundation structure
The invention relates to the technical field of bridge and tunnel interface engineering application, in particular to a tunnel foundation structure at the bridge and tunnel connection position and a construction method thereof. A tunnel foundation structure at the bridge-tunnel connection position comprises a concrete foundation and a supporting pile, the concrete foundation is arranged below an open cut tunnel at the bridge-tunnel connection position, the two ends of the supporting pile stretch into the concrete foundation and a rock stratum below the open cut tunnel respectively, and the height of the bottom face of the concrete foundation does not exceed the height of the top face of a pile foundation of a bridge abutment. According to the structure, the concrete foundation and the supporting piles are arranged below the open cut tunnel, the height of the bottom face of the concrete foundation does not exceed the height of the top face of the pile foundation, the downward digging depth does not exceed the height of the bottom face of the concrete foundation when a bridge abutment is constructed, disturbance to the concrete foundation is avoided, and the situation that excavation affects the stability of the open cut tunnel is avoided. The two ends of the supporting piles stretch into the concrete foundation and the rock stratum below the open cut tunnel, the weight of the open cut tunnel can be transmitted to the rock stratum, soil below the open cut tunnel is excavated when a bridge abutment is constructed, and disturbance to the open cut tunnel can be avoided.
本发明涉及桥隧接口工程应用技术领域，特别是一种桥隧相接处的隧道基础结构及其施工方法。一种桥隧相接处的隧道基础结构，包含混凝土基础和支撑桩，混凝土基础设置于桥隧相接处的明洞的下方，支撑桩两端分别伸进混凝土基础和明洞下方的岩层，混凝土基础的底面高度不超过桥台的桩基顶面高度。本结构通过在明洞的下方设置混凝土基础和支撑桩，且混凝土基础的底面高度不超过桩基底面顶面的高度，则在施工桥台时下挖深度不会超出混凝土基础的底面高度，避免对混凝土基础造成扰动，避免开挖影响明洞的稳定性。支撑桩两端分别伸进混凝土基础和明洞下方的岩层，则明洞的重量能够传递到岩层，在建设桥台时开挖明洞下方的土体，能够避免对明洞造成扰动。
Tunnel foundation structure at bridge-tunnel connection position and construction method of tunnel foundation structure
The invention relates to the technical field of bridge and tunnel interface engineering application, in particular to a tunnel foundation structure at the bridge and tunnel connection position and a construction method thereof. A tunnel foundation structure at the bridge-tunnel connection position comprises a concrete foundation and a supporting pile, the concrete foundation is arranged below an open cut tunnel at the bridge-tunnel connection position, the two ends of the supporting pile stretch into the concrete foundation and a rock stratum below the open cut tunnel respectively, and the height of the bottom face of the concrete foundation does not exceed the height of the top face of a pile foundation of a bridge abutment. According to the structure, the concrete foundation and the supporting piles are arranged below the open cut tunnel, the height of the bottom face of the concrete foundation does not exceed the height of the top face of the pile foundation, the downward digging depth does not exceed the height of the bottom face of the concrete foundation when a bridge abutment is constructed, disturbance to the concrete foundation is avoided, and the situation that excavation affects the stability of the open cut tunnel is avoided. The two ends of the supporting piles stretch into the concrete foundation and the rock stratum below the open cut tunnel, the weight of the open cut tunnel can be transmitted to the rock stratum, soil below the open cut tunnel is excavated when a bridge abutment is constructed, and disturbance to the open cut tunnel can be avoided.
本发明涉及桥隧接口工程应用技术领域，特别是一种桥隧相接处的隧道基础结构及其施工方法。一种桥隧相接处的隧道基础结构，包含混凝土基础和支撑桩，混凝土基础设置于桥隧相接处的明洞的下方，支撑桩两端分别伸进混凝土基础和明洞下方的岩层，混凝土基础的底面高度不超过桥台的桩基顶面高度。本结构通过在明洞的下方设置混凝土基础和支撑桩，且混凝土基础的底面高度不超过桩基底面顶面的高度，则在施工桥台时下挖深度不会超出混凝土基础的底面高度，避免对混凝土基础造成扰动，避免开挖影响明洞的稳定性。支撑桩两端分别伸进混凝土基础和明洞下方的岩层，则明洞的重量能够传递到岩层，在建设桥台时开挖明洞下方的土体，能够避免对明洞造成扰动。
Tunnel foundation structure at bridge-tunnel connection position and construction method of tunnel foundation structure
一种桥隧相接处的隧道基础结构及其施工方法
YU YANG (author) / LI SHENGLIN (author) / GUAN DONGYIN (author) / BIN HAIFENG (author) / LI YANGYI (author) / SHI ZHONGLI (author) / YUAN TONG (author) / QIN XIANZHUO (author) / FENG YAN (author) / LIANG HONGHAO (author)
2024-05-28
Patent
Electronic Resource
Chinese
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