Site large-scale direct shearing test device of shearing strength of concrete and basement adhesion surface
2009
The invention relates to a site large-scale direct shearing test device of the shearing strength of a concrete and basement adhesion surface, comprising two sets of independent pile foundation static load test systems, a bracket stand column, a cross beam, a counter-force beam, a longitudinal beam, a protective cylinder, a base plate and a force transferring block. One set of pile foundation static load test system controls the vertical displacement data collection application to the load and is connected to the top surface of a trail body below the counter-force beam; the other set of pile foundation static load test system controls shearing load application and shearing displacement data collection and is arranged between a concrete backseat and the side of the trail body; the cross beam is arranged above the bracket stand column; the counter-force beam is connected below the cross beam; the protective cylinder is connected with the cross beam through the longitudinal beam; and one side of the force transferring block is connected with the pile foundation static load test system and the other side is connected with the concrete trail body through the base plate. Compared with the prior art, the invention solves the problems of unstable loading system and complex counter-force system, really realizes full automation of static load test and has the advantages of strong applicability, wide application and higher precision.
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