Sleeve end plate for achieving grouting connection and PHC pipe pile

Abstract

The invention relates to the field of prestressed high-strength concrete pipe pile structures of civil engineering pile foundations, in particular to a sleeve end plate for achieving grouting connection and a PHC pipe pile. A plurality of steel sleeves are arranged on the lower end face of the end plate, a communicating pipeline is arranged between the lower portions of every two adjacent steel sleeves, an inner cavity of each communicating pipeline communicates with an inner cavity of the corresponding adjacent steel sleeve, a through hole allowing a prestressed steel bar to pass through is formed in the bottom face of each steel sleeve, and the ends, penetrating in the steel sleeves, of the prestressed steel bars are in stop fit with the bottom faces of the steel sleeves. A grouting holeand a grout outlet hole are formed in the end plate in the radial direction. The sleeve end plate can be used for anti-pulling connection of a PHC pipe pile body, can also be used for reliable connection of the PHC pipe pile and a bearing platform, and can adapt to the prefabricating and assembling construction pace of the bearing platform. The defects of end plate welding connection and mechanical connection are overcome, the requirement for the pile splicing operation precision is low, the sleeve end plate is suitable for complex engineering conditions, and the effect is guaranteed.

Description

technical field [0001] The invention relates to the field of prestressed high-strength concrete pipe pile structures of civil engineering pile foundations, in particular to a sleeve end plate and a PHC pipe pile for realizing grouting connection. Background technique [0002] Prestressed high-strength concrete pipe piles (PHC pipe piles) have the characteristics of good pile body quality, high vertical bearing capacity of a single pile, strong adaptability to engineering geological conditions, and fast construction speed. Since the 1990s, it has been widely used in construction, highway, railway, port and other projects in our country. Due to reasons such as production, transportation and construction, the pile length of prestressed high-strength concrete pipe piles often cannot meet the design requirements at one time, and the piles must be connected on site during pile driving, which involves the problem of pipe pile joints. At the same time, under the uplift load-bearing...

AI Technical Summary

Problems solved by technology

[0005] In order to solve many problems existing in the connection method of the existing PHC pipe pile body, the present invention provides a sleeve end plate and a PHC pipe pile for realizing grouting connection

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