Load Cell Component for Improving Structural Strength of Pile Body after Self-Balanced Testing of Pile Foundation

Abstract

The invention discloses a load cell component for improving the structural strength of a pile body after self-balanced testing of a pile foundation, which comprises a loading unit component, upper displacement rod components fixed on the upper part of the loading unit component, and lower displacement rod components fixed on the lower part of the loading unit component, and further comprises telescopic rod components and a grouting component; there is a plurality of telescopic rod components, the telescopic rod components are fixed to the loading unit component, and the telescopic direction of the telescopic rod components is parallel to the loading direction of the loading unit component; each telescopic rod component comprises an inner rod and an outer sleeve, wherein a part of the inner rod is positioned in the outer sleeve, a slurry cavity is formed between the outer wall of the inner rod positioned in the outer sleeve and the inner wall of the outer sleeve, and the outer sleeve is provided with a slurry inlet; and the grouting component communicates with the slurry inlets, and when in use, slurry is introduced into the slurry cavities through the grouting component.

What is claimed is: 
     
         1 . A load cell component for improving the structural strength of a pile body after self-balanced testing of a pile foundation, comprising a loading unit component, upper displacement rod components fixed on the upper part of the loading unit component, and lower displacement rod components fixed on the lower part of the loading unit component, characterized in that the load cell component further comprises telescopic rod components and a grouting component; there is a plurality of telescopic rod components, the telescopic rod components are fixed to the loading unit component, and the telescopic direction of the telescopic rod components is parallel to the loading direction of the loading unit component; each telescopic rod component comprises an inner rod and an outer sleeve, wherein a part of the inner rod is positioned in the outer sleeve, a slurry cavity is formed between the outer wall of the inner rod positioned in the outer sleeve and the inner wall of the outer sleeve, and the outer sleeve is provided with a slurry inlet; and the grouting component communicates with the slurry inlets, and when in use, slurry is introduced into the slurry cavities through the grouting component. 
     
     
         2 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 1 , characterized in that the grouting component comprises an annular grouting channel and grouting pipes, the telescopic rod components are all connected with the annular grouting channel, the slurry inlet of each outer sleeve is located in the annular grouting channel, one end of each grouting pipe communicates with the annular grouting channel, and the other end is a slurry inlet. 
     
     
         3 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 2 , characterized in that the loading unit component comprises loading units, an upper inner ring, a lower inner ring, and an upper outer ring; there is a plurality of loading units, and the plurality of loading units are uniformly arranged in a circumferential manner; and the upper inner ring and the lower inner ring are positioned between the plurality of loading units and are arranged with one above the other, the upper inner ring is connected with the upper part of each loading unit through an upper connecting plate, the lower inner ring is connected with the lower part of each loading unit through a lower connecting plate, and the upper outer ring is at the periphery of the plurality of loading units and is fixed to the upper parts of the plurality of loading units at the same time. 
     
     
         4 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 3 , characterized in that the annular grouting channel comprises a lower outer ring fixed on the lower part of each loading unit and a slurry replenishing channel which is annular and has an inner opening, the inner side of the slurry replenishing channel is welded to the outer side wall of the lower outer ring, a channel allowing the flow of slurry is enclosed by the slurry replenishing channel and the lower outer ring, the lower outer ring is at the periphery of the plurality of loading units and is fixed to the lower parts of the plurality of loading units at the same time, the inner rods are fixed on the upper outer ring, and the outer sleeves are fixed on the lower outer ring. 
     
     
         5 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 3 , characterized by further comprising a lower outer ring, wherein the lower outer ring is at the periphery of the plurality of loading units and fixed to the lower parts of the plurality of loading units at the same time; the inner rods are fixed to the lower outer ring, and the outer sleeves are fixed to the upper outer ring; the grouting component comprises a grouting channel and grouting pipes communicating with the grouting channel; the slurry inlet on each outer sleeve is arranged at the upper end of the outer sleeve; and the grouting channel is a hollow pipe, and through holes corresponding to the slurry inlets are formed on the grouting channel. 
     
     
         6 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 1 , characterized in that both the inner wall of each outer sleeve and the outer wall of each inner rod located inside the corresponding outer sleeve are provided with groove structures. 
     
     
         7 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 1 , characterized in that only a through hole matched with the diameter of the inner rod is left at the upper end of each outer sleeve, and the bottom of each inner rod is provided with a limiting table for preventing the inner rod from separating from the corresponding outer sleeve. 
     
     
         8 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 1 , characterized in that the inner rods are fixed to the upper part of the loading unit component, and the outer sleeves are fixed to the lower part of the loading unit component; the grouting component comprises a grouting channel and grouting pipes communicating with the grouting channel; the slurry inlet on each outer sleeve is arranged on the side wall of the outer sleeve; and the grouting channel is a hollow pipe, the grouting channel is welded to the outer sleeves, and through holes corresponding to the slurry inlets are formed on the grouting channel. 
     
     
         9 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 8 , characterized in that there are two slurry inlets, the two slurry inlets are arranged with one above the other, there are two grouting channels, and the two grouting channels are arranged with one above the other and correspond to the slurry inlets respectively. 
     
     
         10 . The load cell component for improving the structural strength of the pile body after self-balanced testing of the pile foundation according to  claim 9 , characterized in that the load cell component and reinforcement cages of an engineering pile are fixed in advance before pour-molding of the pile foundation, the number of the telescopic rod components is the same as the number of main bars of the reinforcement cages or meets the requirement of equal section replacement, the inner rods are welded to the main bars of an upper reinforcement cage of the engineering pile and wound tightly with steel wires, and the outer sleeves are welded to the main bars of a lower reinforcement cage and wound tightly with steel wires.