Shallow-layer rapid pile driver suitable for soft texture surface

Abstract

The invention discloses a shallow-layer rapid pile driver suitable for a soft texture surface. The shallow-layer rapid pile driver comprises a pile frame, a pile hammer, a shifting mechanism and lifting equipment. The shifting mechanism comprises a pair of guide rail cross beams between which a first sliding block and a second sliding block are arranged, Side stop blocks are arranged at the two ends of the guide rail cross beams respectively, tension springs are arranged between the first sliding block and the side stop blocks and between the second sliding block and the side stop blocks, round holes are formed in the first sliding block and the second sliding block, cams are installed at the power output ends of driving motors and located in the round holes, a first shifting arm is arranged on the first sliding block, and a second shifting arm is arranged on the second sliding block. Compared with the prior art, the shallow-layer rapid pile driver suitable for the soft texture surfacehas the beneficial effects that through the opposite movement of the first shifting arm and the second shifting arm, the pile hammer inclines slightly in the descending process, when the pile hammerin the slightly inclined state collides with the pile body, the pile body is expanded slightly in a pile hole in the ground along with transverse friction force, so that the pile body sinks easily, and the pile driver is suitable for being used in the soft surface environment.

Description

technical field [0001] The invention relates to a shallow fast pile driver suitable for soft ground, which belongs to the technical field of construction equipment. Background technique [0002] Pile driving is to squeeze the pile body into the foundation soil by the power impact of the machine tool. The construction pile driver is the infrastructure of modern building construction. supporting base. In the process of driving the pile pipe or prefabricated pile into the ground, it is necessary to overcome the huge soil resistance, so the pile head impact velocity of the pile driver should be as high as possible within a reasonable range. However, during the piling process of the current pile driver, only the acceleration of gravity is used to make the pile head drop freely from high altitude to generate the impact velocity. The impact velocity obtained by this method is very limited. For relatively solid ground, the piling efficiency is very low. Moreover, the speed is slow...

AI Technical Summary

Problems solved by technology

However, during the pile driving process, the current pile driver only uses the acceleration of gravity to make the pile head drop freely from a high altitude to generate the impact velocity. The impact velocity obtained by this method is very limited. For relatively solid ground, the piling efficiency is very low. Moreover, the speed is slow. At the same time, the pile driver is used for a long time, which will cause the pile to wear and tear, which will lead to deflection during pile driving, which is not conducive to improving the construction speed. Moreover, the pile body is subjected to a huge impact force for a long time. , easily damaged or deformed, therefore, in the shallow soft ground piling process, we can use a small impact force to impact the pile to reduce the probability of pile damage

[0003] Using a traditional pile driver and using a small impact force to impact the pile body will inevitably affect the piling efficiency and prolong the piling time. Therefore, how to improve the piling efficiency without increasing the impact force of the pile hammer when piling in shallow layers , is a technical difficulty

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