Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Deepwater bridge composite foundation and construction method thereof
The invention discloses a deepwater bridge composite foundation and a construction method thereof.The composite foundation comprises a pier, a caisson, a particle cushion layer and a pile group foundation, the caisson is located below the pier and vertically penetrates through the pier, the caisson is provided with a bottom plate, an inclined top plate and side walls, and geotechnical cloth is laid on the lower half portion of the inclined top plate; the inclined top plate is fixed at the bottom of the pier; an inner partition wall is arranged in the pier and the caisson; the lower part of the caisson is embedded in a seabed; the particle cushion layer is located below the bottom plate, and the particle cushion layer is provided with a gravel area and a pebble area which are arranged in a single-layer mode; a raft plate is arranged between the lower portion of the cushion layer and the upper portion of the pile group foundation, and pile heads of the pile group foundation are embedded into the raft plate. The particle cushion layer is arranged between the raft plate and the caisson, particles roll and slide under the action of a strong earthquake so as to isolate upward conduction of the earthquake action, meanwhile, the appearance of the inclined top plate of the caisson and the geotechnical cloth can guide water flow and weaken scouring, and the bearing performance of the deepwater large-span bridge foundation under the strong earthquake and torrent environment is guaranteed.
本发明公开了一种深水桥梁复合基础及其施工方法，该复合基础包括桥墩、沉箱、颗粒垫层、群桩基础，沉箱位于桥墩下方并与桥墩上下贯通，沉箱设有底板、倾斜顶板、侧墙，倾斜顶板下半部分敷设有土工布；倾斜顶板固定于桥墩底部，桥墩与沉箱内部设有内隔墙；沉箱下部埋入海床中；颗粒垫层位于底板下方，颗粒垫层设有以单层排布的碎石区域和卵石区域；垫层下方与群桩基础上方之间设有筏板，群桩基础桩头嵌入筏板内。本发明通过在筏板与沉箱之间设置颗粒垫层，在强震作用下颗粒产生滚动和滑动位移从而隔绝地震作用向上传导，同时沉箱的倾斜顶板外形及土工布可引导水流、减弱冲刷，保证了强震、急流环境下深水大跨桥梁基础的承载性能。
Deepwater bridge composite foundation and construction method thereof
The invention discloses a deepwater bridge composite foundation and a construction method thereof.The composite foundation comprises a pier, a caisson, a particle cushion layer and a pile group foundation, the caisson is located below the pier and vertically penetrates through the pier, the caisson is provided with a bottom plate, an inclined top plate and side walls, and geotechnical cloth is laid on the lower half portion of the inclined top plate; the inclined top plate is fixed at the bottom of the pier; an inner partition wall is arranged in the pier and the caisson; the lower part of the caisson is embedded in a seabed; the particle cushion layer is located below the bottom plate, and the particle cushion layer is provided with a gravel area and a pebble area which are arranged in a single-layer mode; a raft plate is arranged between the lower portion of the cushion layer and the upper portion of the pile group foundation, and pile heads of the pile group foundation are embedded into the raft plate. The particle cushion layer is arranged between the raft plate and the caisson, particles roll and slide under the action of a strong earthquake so as to isolate upward conduction of the earthquake action, meanwhile, the appearance of the inclined top plate of the caisson and the geotechnical cloth can guide water flow and weaken scouring, and the bearing performance of the deepwater large-span bridge foundation under the strong earthquake and torrent environment is guaranteed.
本发明公开了一种深水桥梁复合基础及其施工方法，该复合基础包括桥墩、沉箱、颗粒垫层、群桩基础，沉箱位于桥墩下方并与桥墩上下贯通，沉箱设有底板、倾斜顶板、侧墙，倾斜顶板下半部分敷设有土工布；倾斜顶板固定于桥墩底部，桥墩与沉箱内部设有内隔墙；沉箱下部埋入海床中；颗粒垫层位于底板下方，颗粒垫层设有以单层排布的碎石区域和卵石区域；垫层下方与群桩基础上方之间设有筏板，群桩基础桩头嵌入筏板内。本发明通过在筏板与沉箱之间设置颗粒垫层，在强震作用下颗粒产生滚动和滑动位移从而隔绝地震作用向上传导，同时沉箱的倾斜顶板外形及土工布可引导水流、减弱冲刷，保证了强震、急流环境下深水大跨桥梁基础的承载性能。
Deepwater bridge composite foundation and construction method thereof
一种深水桥梁复合基础及其施工方法
LI ZHONGWEI (Autor:in) / DAI GUOLIANG (Autor:in) / GONG WEIMING (Autor:in) / CHEN ZHIWEI (Autor:in) / LIU HONGBO (Autor:in) / ZHU WENBO (Autor:in) / LUO LIWEI (Autor:in)
22.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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