Indoor frozen soil model pile static force loading experimental device and method

Abstract

The invention discloses an indoor frozen soil model pile static force loading experimental device and method. The device comprises a workbench, a loading framework, a self-balance lever static force loading device, a refrigerating system, a pile soil model, a displacement measurement system and a strain testing system, wherein the workbench is arranged on a horizontal plane; the loading framework is vertically welded on the workbench; the self-balance lever static force loading device, the refrigerating system and the pile soil model are installed from the top of the outer side to the bottom of the inner side of the overloading framework in a matched mode from top to bottom sequentially; the displacement measurement system and the strain testing system are arranged on the external side wall of the loading framework; the displacement measurement system extends into the loading framework and is connected to the part between the refrigerating system and the pile soil model; the strain testing system extends into the pile soil model. The indoor frozen soil model pile static force loading experimental device and method can overcome defects of high cost, high maintenance expense, long time and the like in the prior art so as to achieve the advantages of low cost, low maintenance expense and short time.

Description

Technical field [0001] The invention relates to an indoor test device in the field of civil engineering, in particular to an indoor frozen soil model pile static loading test device and method. Background technique [0002] The pile foundation as the lower structure of the building can transmit the self-weight load and load-bearing load of the building to the deep part of the foundation with good mechanical properties, thereby avoiding or reducing the uneven settlement of the building. With the massive construction of high-rise buildings, high-speed railways and bridges all over the world that have harsh requirements for settlement, the research on the bearing capacity of pile foundations and the rheological properties of pile-soil has attracted increasing attention, and has become the design and construction of such structures. The core issue must be considered at the time. [0003] Frozen soil is a kind of soil that is below zero degrees Celsius and is rich in frozen and unfroze...

AI Technical Summary

Problems solved by technology

[0006] At present, the indoor test of permafrost model piles mainly uses the MTS universal material testing machine device, which is expensive and has high maintenance costs, which has become a constraint for scientific research and experimental teaching.

[0007] In the process of realizing the present invention, the inventor found that there are at least defects such as high cost, large maintenance cost and long time spent in the prior art

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