A pouring pipe fitting for pouring concrete slurry into pile holes

Abstract

The invention discloses a pouring pipe used for injecting of pile hole concrete grout. The pouring pipe comprises an annular grouting head, and a buffer cavity is formed in the annular grouting head in the circumferential direction of the grouting head; two grouting holes are formed in the upper surface of the grouting head; the grouting holes are connected with grouting pipes; and a plurality of grooves are formed in the lower surface of each grouting hole. A through hole communicating with the buffer cavity is formed in the groove bottom of each groove; clamping plates are fixed to the groove walls of the grooves, and universal ball heads are arranged on the clamping plates; the upper ends of spraying pipes penetrate through the middles of the universal ball heads and are aligned with the through holes, and the lower ends of the spraying pipes extend downwards along the axes of the through holes to the lower end faces partially protruding out of the grooves; and the two ends of hoses are connected with the bottom of the buffer cavity and the upper ends of the spraying pipes correspondingly, and the axial length of each hose is larger than that of the axis of each through hole. After a concrete pile is sunk, the cement grout is injected into the pile holes, thus the situation that the concrete pile squeezes the excess cement grout out of the pile holes, and thus the cement grout is excessively wasted is avoided, and meanwhile the situation that the overflowed cement grout pollutes the environment or delays the construction period is prevented.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a pouring pipe fitting for pouring concrete slurry into pile holes. Background technique [0002] At present, the construction methods of prefabricated concrete piles basically adopt the hammering method and the static pressure method. The main defects of these two methods of pile driving are: to produce a soil squeezing effect, which will affect the engineering pile and the surrounding original facilities; It is difficult to control, and the integrity of the pile body cannot be guaranteed; the vibration and noise generated by the hammering method will affect the surrounding environment. Therefore, there are many disadvantages in the pile sinking construction using the hammering method or the static pressure method. The rooted pile is drilled with a drilling rig, the soil in the hole is stirred into mud, and the cement slurry is injected into the mud hole to make a mud hole l...

AI Technical Summary

Problems solved by technology

[0002] At present, the construction methods of prefabricated concrete piles basically adopt the hammering method and the static pressure method. The main defects of these two methods of pile driving are: to produce a soil squeezing effect, which will affect the engineering pile and the surrounding original facilities; It is difficult to control, and the integrity of the pile body cannot be guaranteed; the vibration and noise generated by the hammering method will affect the surrounding environment. Therefore, there are many disadvantages in the pile sinking construction using the hammering method or the static pressure method

However, this method needs to pour cement slurry into the mud hole to form a mixed slurry before sinking the pile. The discharge volume of the mixed slurry is the actual volume of the prefabricated concrete pile or concrete pipe pile, and the discharged mixed slurry contains cement slurry, resulting in waste, while affecting the environment, and the overall construction progress is slow

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