Construction method of vibration concrete pouring thick-wall tubular pile

Abstract

The invention relates to the technical field of engineering construction, and in particular to a construction method of a vibration concrete pouring thick-wall tubular pile. A resonance-free vibratory hammer, a clamp, an inner pipe, an outer pipe, a middle jacket pipe and a hoist or pile frame are included. The construction method comprises the specific steps that the inner pipe, the outer pipe and the middle jacket pipe are sleeved, and the middle jacket pipe is arranged between the inner pipe and the outer pipe; the three sleeved pipes are fixed by the clamp; the vibratory hammer is started to vibrate and sink the three sleeved pipes, and soil enters the inner pipe and the middle jacket pipe; after vibration and sinking are finished, vibration is stopped, and a pile clamping manner is changed; the hoist is started to statically pull the middle jacket pipe; and the middle jacket pipe is transferred, the vibratory hammer is started, and soil in the middle jacket pipe is discharged out in a vibration manner. The construction method has the beneficial effects that open pipe sinking is adopted, end resistance is small, and the method can be suitable for multiple kinds of soil properties; no virtual soil exists, no hole cleaning is needed, and the construction process is simple and convenient; the inner pipe and the outer pipe have the full wall protection function; little soil is discharged, the soil transport cost is low, and materials are saved; in the whole process, no slurry pollution or resonance exists, and vibration noise is low; and the requirements for environmental protection and safety are met, and high efficiency and economical efficiency are achieved.

Description

[technical field] [0001] The invention relates to the technical field of engineering construction, in particular to a construction method for vibrating concrete thick-walled pipe piles. [Background technique] [0002] In large-scale modern foundation operations such as high-speed railways, bridges, wharves, high-rise buildings, etc., large pile diameters have become a trend. Existing large-scale pile construction methods include cast-in-place piles, prefabricated piles, and large-diameter thin-walled cast-in-place piles. Finally, a reinforcement cage is placed in the hole and concrete is poured. Because of this kind of hole-forming pile, there are usually problems such as slag and mud pollution in the hole, and holes are prone to collapse; prefabricated piles are made in factories or construction sites. Various materials and various forms of piles, such as concrete square piles, prestressed concrete pipe piles, steel piles, etc., use pile sinking equipment to drive, press o...

AI Technical Summary

Problems solved by technology

The above two pile construction methods are to drive casings into the foundation, the lower part of the foundation is closed, and the soil is squeezed to form holes. Generally, it can only be applied to soft soil foundations, and cannot sink in hard soils.

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