Construction structure of concrete pipe pile

Abstract

The invention relates to the technical field of the concrete pipe piles, and discloses a construction structure of a concrete pipe pile, which is surrounded by a hollow area pipe pile, grouting pipesand a pushing steel pipe and the inner wall of the pipe pile are provided with a plurality of mounting holes, and the grouting pipes are inserted into the mounting hole; the outside diameter of the pushing steel pipe is smaller than the inside diameter of the hollow area of the pipe pile. The pushing steel pipe is placed in the hollow area of the pipe pile, and a grouting gap is formed between theoutside wall of the pushing steel pipe and the inner wall of the pipe pile, and the outside ends of the grouting pipes are pressed on the top of the pushing steel pipe, and the inner ends of the grouting pipes are inserted into the soil layer around the pipe pile through the grouting gap. The grout flows from the outer ends of the grouting pipes to the inner ends of the grouting pipes and is injected into the soil outside of the pipe pile to form a grout package wrapping the inner ends of the grouting pipes. Therefore, the pile side friction resistance, pressure resistance and pull-out bearing capacity of the pipe pile are increased and the pipe pile has strong practicability.

Description

Technical field [0001] The patent of the invention relates to the technical field of concrete pipe piles, in particular to the construction structure of concrete pipe piles. Background technique [0002] With the rapid development of urban construction, concrete pipe piles have been widely used in industrial and civil construction, municipal administration and other engineering fields due to a series of advantages such as reliable pile quality, high bearing capacity, fast construction, and good economy. [0003] At present, concrete pipe piles are classified into prestressed concrete pipe piles (PC pipe piles), prestressed concrete thin-wall pipe piles (PTC pipe piles) and prestressed high-strength concrete pipe piles (PHC pipe piles) according to concrete strength grade and wall thickness. [0004] In the prior art, due to the characteristics of traditional concrete pipe piles, the friction resistance between the pile side of the pipe pile and the surrounding soil is relatively smal...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a construction structure for concrete pipe piles, aiming at solvin

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