Mud-free circle diameter fender post capable of being constructed quickly for soft soil foundation

Abstract

The invention provides a mud-free circle diameter fender post capable of being constructed quickly for a soft soil foundation. The mud-free circle diameter fender post is characterized in that an outer steel pipe is clamped by a hydraulic clamp of a vibration hammer of a multifunctional pile machine, wherein the outer steel pipe and an inner steel pipe are connected through a flange plate; an openable and closable double-valve which is pulled upwards by two steel wire ropes is arranged at a port of the lower part of the inner steel pipe, and the distance between the inner steel pipe and the outer steel pipe is 20 mm; when the vibration hammer vibrates and presses the double steel pipes downwards, the double-valve is opened, miscellaneous fill, sludge and clay enter the inner steel pipe, the double steel pipes sink to the designed elevation, the two steel wire ropes are tightened, the double-valve is closed, the hydraulic clamp loosens the outer steel pipe, the inner steel pipe and soilin the pipe are lifted upwards to the outside of the post, a reinforcement cage is placed in the outer steel pipe, concrete is poured, then the outer steel pipe is clamped by the hydraulic clamp of the vibration hammer, vibration and upward pulling are conducted, the outer steel pipe is lifted out of the ground, and the post is formed after the concrete is solidified. Compared with an existing common drilling cast-in-place pile constructed through a rotary drilling machine, the mud-free circle diameter fender post has obvious advantages that mud is not generated in construction, the site is clean, the construction speed is increased by 1-2 times, and the outward transport cost is further reduced.

Description

technical field [0001] The invention relates to the field of building foundations, in particular to a mud-free round-diameter surrounding protection pile for soft soil foundations that can be quickly constructed. Background technique [0002] In my country's coastal cities, soft soil foundations are widely distributed. In the soft soil foundations, silt is the main material. The silt is fluid-plastic or plastic, with high compressibility and water content (ω 0 )60-80, poor water permeability. For foundation pit surrounding protection piles on such soft soil foundations, rotary drilling rigs are often used to construct bored piles. During construction, a large amount of mud will be generated. The mud will form mud, and the volume will increase by 3.5 times. The site is seriously polluted. shipping cost. Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a kind of mud-free round-diameter surrounding protection pile...

AI Technical Summary

Problems solved by technology

For foundation pit surrounding protection piles on such soft soil foundations, rotary drilling rigs are often used to construct bored piles. During construction, a large amount of mud will be generated. The mud will form mud, and the volume will increase by 3.5 times. The site is seriously polluted. Shipping cost

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