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A platform for research: civil engineering, architecture and urbanism
Anti-scouring pier pile foundation structure, construction device and construction method
The invention belongs to the technical field of bridge engineering, and particularly discloses an anti-scouring pier pile foundation structure, a construction device and a construction method.The pier pile foundation structure comprises a pile foundation and a UHPC pile casing located outside the pile foundation, and a bearing platform is supported on the pile foundation; the bottom end of the UHPC pile casing is located below the scouring elevation of a riverbed by 1 m, the top end of the UHPC pile casing is located at the low water level elevation position, the UHPC pile casing is made of ultra-high performance concrete, the portion, located below the bearing platform, of the pile foundation is made of recycled concrete, and the portion, entering the bearing platform, of the pile foundation is made of common concrete. According to the anti-scouring pier pile foundation structure, UHPC is adopted for protecting the easily-scoured portion of the pier, damage to the bottom of the pier caused by seawater scouring, soaking and atmospheric corrosion can be relieved, the service life of the pier is prolonged, and the cracking probability of the pier and structural deformation under the load effect of the pier are remarkably reduced.
本发明属于桥梁工程技术领域，具体公开一种抗冲刷桥墩桩基结构、施工装置及施工方法，桥墩桩基结构包括桩基和位于所述桩基外的UHPC护筒，所述桩基上支撑有承台；所述UHPC护筒的底端位于河床的冲刷标高以下1m，顶端位于低水位标高处，所述UHPC护筒采用超高性能混凝土，所述桩基位于所述承台下方的部分采用再生混凝土，所述桩基进入所述承台内的部分采用普通混凝土。本发明的抗冲刷桥墩桩基结构采用UHPC对桥墩易冲刷部位进行保护，可减轻海水冲刷、浸泡，以及大气腐蚀对桥墩底部的破坏，提高桥墩的使用寿命，显著减小桥墩的开裂概率与其荷载作用下的结构变形。
Anti-scouring pier pile foundation structure, construction device and construction method
The invention belongs to the technical field of bridge engineering, and particularly discloses an anti-scouring pier pile foundation structure, a construction device and a construction method.The pier pile foundation structure comprises a pile foundation and a UHPC pile casing located outside the pile foundation, and a bearing platform is supported on the pile foundation; the bottom end of the UHPC pile casing is located below the scouring elevation of a riverbed by 1 m, the top end of the UHPC pile casing is located at the low water level elevation position, the UHPC pile casing is made of ultra-high performance concrete, the portion, located below the bearing platform, of the pile foundation is made of recycled concrete, and the portion, entering the bearing platform, of the pile foundation is made of common concrete. According to the anti-scouring pier pile foundation structure, UHPC is adopted for protecting the easily-scoured portion of the pier, damage to the bottom of the pier caused by seawater scouring, soaking and atmospheric corrosion can be relieved, the service life of the pier is prolonged, and the cracking probability of the pier and structural deformation under the load effect of the pier are remarkably reduced.
本发明属于桥梁工程技术领域，具体公开一种抗冲刷桥墩桩基结构、施工装置及施工方法，桥墩桩基结构包括桩基和位于所述桩基外的UHPC护筒，所述桩基上支撑有承台；所述UHPC护筒的底端位于河床的冲刷标高以下1m，顶端位于低水位标高处，所述UHPC护筒采用超高性能混凝土，所述桩基位于所述承台下方的部分采用再生混凝土，所述桩基进入所述承台内的部分采用普通混凝土。本发明的抗冲刷桥墩桩基结构采用UHPC对桥墩易冲刷部位进行保护，可减轻海水冲刷、浸泡，以及大气腐蚀对桥墩底部的破坏，提高桥墩的使用寿命，显著减小桥墩的开裂概率与其荷载作用下的结构变形。
Anti-scouring pier pile foundation structure, construction device and construction method
一种抗冲刷桥墩桩基结构、施工装置及施工方法
LIN SHANGSHUN (author) / CHEN CHAO (author) / LIN XIN (author)
2023-12-08
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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