Ultra-high performance concrete and common concrete combined pile and construction method thereof

Abstract

The invention relates to an ultra-high performance concrete and common concrete combined pile and a construction method thereof. The combined pile comprises an ultra-high performance concrete prefabricated barrel, a plurality of holes are formed in the side wall of the ultra-high performance concrete prefabricated barrel, the ultra-high performance concrete prefabricated barrel is placed in a pile hole, the center line of the ultra-high performance concrete prefabricated barrel coincides with that of the pile hole, common concrete is poured in the ultra-high performance concrete prefabricated barrel to form a common concrete inner core, the common concrete flows out of the holes in the outer wall of the ultra-high performance concrete prefabricated barrel from inside to outside to form a common concrete bonding outer layer, and the common concrete bonding outer layer is located between the outer wall of the ultra-high performance concrete prefabricated barrel and the inner wall of the pile hole. The ultra-high performance concrete and common concrete combined pile is simple in structure construction, novel in material and good in mechanical property, the pile diameter can be reduced, manufacturing cost can be saved, the problems happening to pile foundation construction are effectively solved, the quality and durability of the pile are improved, the good mechanical property and economic benefits are achieved, and the quite wide application prospect is achieved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a composite pile of ultra-high performance concrete and ordinary concrete and a construction method thereof. Background technique [0002] Due to the advantages of high bearing capacity, small settlement and good seismic performance, cast-in-situ pile foundation has been widely used in the foundation of high-rise buildings, bridges and other structures. The column foundation has a large bearing capacity, and the general pile section is large. Due to the complex underground environment and high requirements for construction technology, it often occurs that the concrete pile body and the bedrock do not solidify, the pile concrete does not solidify, and rock slag deposits into layers. , There are quality problems of broken piles such as hollow bodies in the pile body, and the pile foundation is a concealed project, so quality problems are not easy to find, difficult to ins...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the current reinforced concrete cast-in-situ piles with large cross-sections and easy problems in construction quality, the purpose of the present invention is to provide an ultra-high-performance concrete with a simple structure, easy and convenient construction, novel materials, good mechanical properties and economic benefits. Ordinary concrete composite pile and its construction method

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