Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Super-huge bridge steel casing sinking construction method
The invention discloses a multi-machine combined steel casing overwater sinking construction method suitable for a gravel soil layer, which comprises the following steps: sinking steel casings row by row through a pile driving barge, driving the steel casings into a riverbed and entering a self-stabilizing state; a fishing method is adopted for secondary hammering to follow up the steel casing in the self-stabilizing state, so that the steel casing sinks in place; wherein in the sinking direction of the steel casings, two or three rows of steel casings are arranged at intervals, and the steel casings are hammered synchronously in a following mode through a fishing method. The pile driving barge is used for rapidly taking and placing the pile and hammering the steel casing to be self-stabilized in a riverbed, the characteristic of high efficiency of the pile driving barge is exerted, the floating crane ship lifts the heavy hydraulic impact hammer to follow up and sink the steel casing to the target depth for the second time, and the characteristic of high energy of the pile driving barge is exerted. Aiming at the situation that a covering layer is difficult to hit such as gravelly soil with high compactness and strength, the requirement for the operation capacity of a pile driving barge is lowered, meanwhile, the construction efficiency is guaranteed, and the situation that the construction progress of a bridge is affected by factors such as navigation clear height limitation of a construction water area or the construction capacity of the pile driving barge is avoided.
本发明公开了一种适用于砾石土层的多机组合钢护筒水上沉放施工方法，包括：通过打桩船逐排沉放钢护筒，将其打入河床中并进入自稳状态；采用钓鱼法二次锤击跟进自稳状态下的钢护筒，使钢护筒下沉到位；其中，沿钢护筒的沉放方向，间隔两排或三排钢护筒采用钓鱼法同步跟随锤击钢护筒。本发明采用打桩船快速取桩放桩并锤击钢护筒于河床中自稳，发挥其高效的特点，浮吊船起吊重型液压冲击锤二次跟进沉放钢护筒至目标深度，发挥其高能量的特点，能够在特大型桥梁的施工过程中，针对覆盖层为密实度、强度较高的砾石土等难打地层，降低对打桩船的作业能力要求，同时保证施工效率，避免因施工水域通航净高限制或打桩船施工能力等因素而影响桥梁的施工进度。
Super-huge bridge steel casing sinking construction method
The invention discloses a multi-machine combined steel casing overwater sinking construction method suitable for a gravel soil layer, which comprises the following steps: sinking steel casings row by row through a pile driving barge, driving the steel casings into a riverbed and entering a self-stabilizing state; a fishing method is adopted for secondary hammering to follow up the steel casing in the self-stabilizing state, so that the steel casing sinks in place; wherein in the sinking direction of the steel casings, two or three rows of steel casings are arranged at intervals, and the steel casings are hammered synchronously in a following mode through a fishing method. The pile driving barge is used for rapidly taking and placing the pile and hammering the steel casing to be self-stabilized in a riverbed, the characteristic of high efficiency of the pile driving barge is exerted, the floating crane ship lifts the heavy hydraulic impact hammer to follow up and sink the steel casing to the target depth for the second time, and the characteristic of high energy of the pile driving barge is exerted. Aiming at the situation that a covering layer is difficult to hit such as gravelly soil with high compactness and strength, the requirement for the operation capacity of a pile driving barge is lowered, meanwhile, the construction efficiency is guaranteed, and the situation that the construction progress of a bridge is affected by factors such as navigation clear height limitation of a construction water area or the construction capacity of the pile driving barge is avoided.
本发明公开了一种适用于砾石土层的多机组合钢护筒水上沉放施工方法，包括：通过打桩船逐排沉放钢护筒，将其打入河床中并进入自稳状态；采用钓鱼法二次锤击跟进自稳状态下的钢护筒，使钢护筒下沉到位；其中，沿钢护筒的沉放方向，间隔两排或三排钢护筒采用钓鱼法同步跟随锤击钢护筒。本发明采用打桩船快速取桩放桩并锤击钢护筒于河床中自稳，发挥其高效的特点，浮吊船起吊重型液压冲击锤二次跟进沉放钢护筒至目标深度，发挥其高能量的特点，能够在特大型桥梁的施工过程中，针对覆盖层为密实度、强度较高的砾石土等难打地层，降低对打桩船的作业能力要求，同时保证施工效率，避免因施工水域通航净高限制或打桩船施工能力等因素而影响桥梁的施工进度。
Super-huge bridge steel casing sinking construction method
一种特大型桥梁钢护筒沉放施工方法
CHEN YANSONG (Autor:in) / SHI WEIMIN (Autor:in) / GUO YUQIANG (Autor:in) / WANG CHAO (Autor:in) / ZHANG YOUYI (Autor:in) / WANG JINGCANG (Autor:in) / XU MENG (Autor:in) / WANG MENGQI (Autor:in) / XU XIANMING (Autor:in) / ZHANG ZONGHU (Autor:in)
14.01.2025
Patent
Elektronische Ressource
Chinesisch
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