Half screw pile and its pile forming method thereof

Abstract

The invention relates to a half-screw pile and a pile-forming method thereof. The half-screw pile is composed of two parts, the upper part is a linear structure, and the lower part is a screw-shaped structure. The pile can be divided into cast-in-place type and prefabricated type. No matter it is cast-in-place type or prefabricated type, the pile forming method is relatively simple. The pile forming method of the present invention has no noise pollution and no vibration pollution during construction, and has a wide prospect for convenient construction, and the pile has the following advantages: it not only satisfies the characteristic that the stress on the upper part of the pile is relatively concentrated, but also improves the bearing capacity; the amount of concrete used is less than Other concrete piles can save more than 30% of the cost.

Description

technical field [0001] The invention relates to the construction field, in particular to a half-screw pile and a pile-forming method thereof. Background technique [0002] Whether it is prefabricated or cast-in-place concrete end-bearing friction piles at home and abroad, the pile ends are basically placed on the soil layer with better bearing capacity. Under the state of ultimate bearing capacity, the main load of the pile is still borne by the pile side friction resistance. Although the compressive strength of concrete has a huge reserve, it is difficult to exert it, and the frictional damage of soil is often used as the limit index of the pile's bearing capacity. This type of pile represents almost all the mechanical characteristics of end-bearing friction piles at home and abroad. The birth of Japanese steel fiber prefabricated fully threaded piles has changed this force characteristic, but it has not been widely used and promoted due to its high...

AI Technical Summary

Problems solved by technology

Non-squeezing piles refer to dry and wet construction method piles, and their soil and mud pollution are very serious. At present, there are almost no better technical measures to solve them.

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