Unreinforced precast concrete thin-wall pile and manufacturing method and application thereof

Abstract

The invention relates to the technical field of precast pile manufacturing, in particular to an unreinforced precast concrete thin-wall pile and a preparation method thereof, and the unreinforced precast concrete thin-wall pile is prepared from the following raw material components in parts by weight: 400-700 parts of cement, 50-100 parts of mineral admixture, 700-1000 parts of sand, 100-250 partsof water, 5-20 parts of admixture, 3-8 parts of air entraining agent and 70-130 parts of composite fiber. The raw materials are stirred and mixed to prepare newly mixed concrete with the slump of 70-120 mm, and then a thin-wall pile with the wall thickness of 30-50 mm is manufactured. The invention further relates to application of the unreinforced prefabricated concrete thin-wall pile in a stiffbody composite foundation. The unreinforced precast concrete thin-wall pile manufactured by the method is large in bearing capacity, good in pile body corrosion resistance and durability, low in steel consumption and high in cost performance, and has a wide application prospect.

Description

【Technical field】 [0001] The invention relates to the technical field of prefabricated pile manufacturing, in particular to an unreinforced prefabricated concrete thin-walled pile and its manufacturing method and application. 【Background technique】 [0002] Prefabricated piles are widely used in construction, municipal engineering and other fields because of their reliable product quality and high construction efficiency. more abundant types. Unreinforced prefabricated concrete thin-walled pile is a new type of concrete prefabricated pile, which has large bearing capacity, good corrosion resistance and durability of the pile body, less consumption of steel, high cost performance, and has broad application prospects. [0003] For some low-rise buildings such as villas, factory buildings, and underground stations whose foundations are on soft ground, using deep foundation piles as foundation force-bearing piles, although reliable in performance, is obviously not economical; ...

AI Technical Summary

Problems solved by technology

[0004] The prefabricated piles used for stiff composite foundations are currently mainly reinforced concrete prefabricated pipe piles, which have the advantages of good mechanical properties, durability, and high strength of the pile body; the disadvantages are large steel consumption and high cost. The economy is poor, so it has not been widely used in foundation treatment

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