O-cell test pile steel bar connector

Abstract

The invention discloses an O-cell test pile steel bar connector which comprises a metal sleeve, internal screw threads, a grouting hole, a sealant layer, a cavity, an upper section steel reinforcementcage main bar, a lower section steel reinforcement cage main bar, a grouting pipeline, a load box and a load box separation surface, wherein the cavity and a connecting end are arranged in an inner cavity of the metal sleeve; in addition, the upper end of the inner cavity of the metal sleeve is the cavity; the internal screw threads are arranged in an inner cavity of the connecting end of the metal sleeve; the grouting hole is formed in the right side wall of the metal sleeve; the upper section steel reinforcement cage main bar is inserted and connected onto the top of the metal sleeve; the lower section steel reinforcement cage main bar is screwed with the bottom of the metal sleeve; the sealant layer is arranged on the top of the metal sleeve; and the input end of the right side of thegrouting hole communicates with the grouting pipeline. The O-cell test pile steel bar connector has the advantages that the normal loading of an O-cell test pile can be ensured, and the problem of pile fracture of the O-cell test pile can be solved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an O-cell test pile reinforcement connector. Background technique [0002] In China, the O-cell test pile is also called self-balancing test pile. The load box is placed at the balance point of the pile body, and the high-pressure oil pump is used to fill the load box with oil, and the upper and lower pile sections are pushed apart, so that the upper and lower pile sections reach the limit state at the same time, thereby Obtain the ultimate bearing capacity of the pile, which is different from the static load test pile. The existing self-balancing test pile is to install a load box on the pile body. During the test, the load box not only provides the force to push the concrete apart, but also provides the force to break the steel bar, and the force to break the steel bar is uncertain. , which greatly affects the test pile results. In order to test the accuracy and con...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art, provide a kind of O-cell test pile steel bar connector, can guarantee that O-cell test pile can still be loaded normally, can solve the problem that O-cell test pile exists "Broken pile" problem

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