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Valve type expanding pile shoe, prestressed pipe pile grouting device and construction method
The invention discloses a valve type expanding pile shoe, a prestressed pipe pile grouting device and a construction method, and belongs to the technical field of pipe sinking construction of prestressed pipe piles. The valve type expanding pile shoe comprises an upper connecting plate, a lower connecting plate, a connecting cylinder, a valve and an air bag. And the valve type expanding pile shoe is fixedly connected with the pile end of the prestressed pipe pile. The valve is connected with the lower connecting piece in a hinged mode and can rotate relative to the lower connecting piece. The periphery of the connecting cylinder is wrapped with an air bag capable of expanding to extrude the valve to unfold. During construction, after the prestressed pipe pile is sunk to reach the preset depth, the air bag is inflated and expanded through the inflation pump to open the valve to form an expanded pile shoe, slurry flows in the expansion direction of the valve to form an expanded head, and therefore the bearing capacity of the pile end is improved. The structure design is ingenious, the pile end bearing capacity can be enhanced, meanwhile, operation and construction are convenient, and the engineering cost is low.
本发明公开了一种活瓣式扩大桩靴、预应力管桩注浆装置及施工方法，属于预应力管桩沉管施工技术领域。本发明提供的活瓣式扩大桩靴包括上部连接板、下部连接板、连接筒、活瓣和气囊。活瓣式扩大桩靴与预应力管桩的桩端固定连接。活瓣与下部连接件通过铰接连接，可相对于下部连接件发生转动。连接筒外围包裹有能够膨胀挤压活瓣展开的气囊。施工时，将预应力管桩进行沉桩到达预定深度后，通过充气泵向气囊内充气膨胀撑开活瓣形成扩大桩靴，浆液沿活瓣展开方向流动形成扩大头从而提高桩端的承载力。本发明结构设计巧妙，能够加强桩端承载力，同时操作方便，便于施工，工程造价低。
Valve type expanding pile shoe, prestressed pipe pile grouting device and construction method
The invention discloses a valve type expanding pile shoe, a prestressed pipe pile grouting device and a construction method, and belongs to the technical field of pipe sinking construction of prestressed pipe piles. The valve type expanding pile shoe comprises an upper connecting plate, a lower connecting plate, a connecting cylinder, a valve and an air bag. And the valve type expanding pile shoe is fixedly connected with the pile end of the prestressed pipe pile. The valve is connected with the lower connecting piece in a hinged mode and can rotate relative to the lower connecting piece. The periphery of the connecting cylinder is wrapped with an air bag capable of expanding to extrude the valve to unfold. During construction, after the prestressed pipe pile is sunk to reach the preset depth, the air bag is inflated and expanded through the inflation pump to open the valve to form an expanded pile shoe, slurry flows in the expansion direction of the valve to form an expanded head, and therefore the bearing capacity of the pile end is improved. The structure design is ingenious, the pile end bearing capacity can be enhanced, meanwhile, operation and construction are convenient, and the engineering cost is low.
本发明公开了一种活瓣式扩大桩靴、预应力管桩注浆装置及施工方法，属于预应力管桩沉管施工技术领域。本发明提供的活瓣式扩大桩靴包括上部连接板、下部连接板、连接筒、活瓣和气囊。活瓣式扩大桩靴与预应力管桩的桩端固定连接。活瓣与下部连接件通过铰接连接，可相对于下部连接件发生转动。连接筒外围包裹有能够膨胀挤压活瓣展开的气囊。施工时，将预应力管桩进行沉桩到达预定深度后，通过充气泵向气囊内充气膨胀撑开活瓣形成扩大桩靴，浆液沿活瓣展开方向流动形成扩大头从而提高桩端的承载力。本发明结构设计巧妙，能够加强桩端承载力，同时操作方便，便于施工，工程造价低。
Valve type expanding pile shoe, prestressed pipe pile grouting device and construction method
活瓣式扩大桩靴、预应力管桩注浆装置及施工方法
WANG KUIHUA (author) / YING XIAOYANG (author) / YE QIYANG (author) / LIU YUTAO (author) / GENG SHAOHAN (author) / YANG YING (author) / LIN HUWEN (author)
2023-06-30
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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