Cross thin wall pipe-sinking device for vibration pipe-sinking pile-dilling machine and pile-filling method thereof

Abstract

The present invention discloses a cross thin-wall pipe-sinking equipment for vibration-pipe sinking pile-filling machine and its application method. Said cross thin-wall pipe-sinking equipment is formed from pipe body and flapper pipe point. The pipe body and cross flapper pipe point are connected by means of hinge, the cross-section of the pipe body is a cross form, when the cross thin-wall concrete pipe is used for strengthening soft ground base, firstly the cross thin-wall pipe-sinking equipment is mounted on the vibration pipe-sinking pile-making machine, the cross thin-wall pipe can be wedge-inserted into soft ground base to reach the design depth, then the concrete is poured into the cross thin-wall sunken pipe, the sunken pipe is vibrated while drawing out the sunken pipe until thecross thin-wall concrete pile is completely poured.

Description

Technical field: [0001] The invention relates to a tube sinking pile machine, more particularly to a tube sinking device of a vibrating tube sinking pile machine. The invention also relates to a method for pouring cross thin-walled concrete piles using the cross thin-wall immersed pipe device. Background technique: [0002] At present, cast-in-place piles are mostly used to strengthen weak foundations, and can be divided into cast-in-place piles with vibration sinking, hammering cast-in-place piles and static pressure cast-in-place piles according to their hole-forming methods. When using immersed tube piles to strengthen weak foundations, use a vibrating tube sinking pile driver, or a hammering sinking tube pile driver, or a static pressure sinking tube pile driver, respectively with a valve-type pile tip or a tapered sealing pile tip, Or a steel pipe with a prefabricated reinforced concrete pile point is sunk into the soil, and then the cast-in-place pile is formed by pul...

AI Technical Summary

Problems solved by technology

Its shortcoming is that, because the surface area of ​​the pile per unit volume of the cast-in-place pile is small, the lateral frictional resistance is small, resulting in a low bearing capacity per unit volume of the cast-in-place pile. Therefore, more materials are used to achieve the same bearing capacity. In the reinforcement of weak foundation, the project cost will be greatly increased

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