Method for installing and stress monitoring of steel bar cage in concrete cast-in-place pile

Abstract

The invention discloses a method for installing and stress monitoring of a steel bar cage in a concrete cast-in-place pile. The method comprises seven steps that 1, a stress gauge body is installed and fixed; 2, wire segments are selected; 3, wire connectors are installed; 4, the wire segment is bound; 5, steel bar cage segments are hoisted and welded; 6, the wire connectors are connected; 7, thestep 5 and the step 6 are repeated until welding of all steel cage segments and connection of all wire segments are finished; and finally, the tail parts of all tail end wire segments are connected with a stress monitoring device. According to the method for installing and stress monitoring of the steel bar cage in the concrete cast-in-place pile, all sectional wires can be fixed to the predetermined safe positions in the ground binding stage of the steel bar cage, compared with the prior art, the construction process is convenient, rapid, safe and efficient, and the fixing quality of a wire is good.

Description

technical field [0001] The invention relates to the construction field of concrete pouring piles, in particular to a method for installing and stress monitoring steel cages in concrete pouring piles. Background technique [0002] At present, in the long-length concrete pouring pile project, because the reinforcement cage is too long and it is not convenient for construction, the process of binding the reinforcement cage in sections is generally adopted, and the reinforcement cage is laid in sections and then connected as a whole. If the existing concrete pouring pile can reach about 50m, at this time, the steel cage is usually divided into 3-4 sections, and the length of each section of the steel cage is basically not less than 12m. [0003] The specific method of tying and lowering the reinforcement cages in sections is as follows: first, use the hoisting device to slowly lower the bottom reinforcement cage into the pile hole, and when the top of the bottom reinforcement ca...

AI Technical Summary

Problems solved by technology

[0006] 1. The space of the pile hole is small, only one person can enter at a time, and the binding labor is heavy and the risk is high

[0007] 2. After the reinforcement cage has been laid down, the strain gauge wires will be bundled. The binding will take a long time, which will easily lead to excessive settlement of the reinforcement cage.

[0008] 3. Underground construction, it is difficult to ensure that the wires are fixed at the predetermined safe position, and the subsequent construction will easily lead to damage to the wires and affect the monitoring effect

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