DEVICE AND METHOD FOR TESTING TEMPERATURE CONDUCTION AND FROST-HEAVING STRAIN OF CONCRETE LINING CANAL

    公开(公告)号:US20230280226A1

    公开(公告)日:2023-09-07

    申请号:US17892057

    申请日:2022-08-20

    CPC classification number: G01L11/025 G01K11/3206

    Abstract: A device for testing temperature conduction and frost-heaving strain of a concrete lining canal comprises: a frost-heaving device comprising a lining canal body and a temperature control device, the temperature control device being configured to provide a predetermined temperature for the lining canal body; a detection device comprising a transverse deformation detection device, a vertical deformation detection device and a plurality of temperature sensors, the transverse deformation detection device being configured to detect a transverse frost-heaving strain parameter of the lining canal body, and the plurality of temperature sensors being arranged along an axial direction of the lining canal body, being embedded inside the lining canal body and being configured to detect temperature conduction performance of the lining canal body.

    TEST DEVICE AND METHOD FOR CONTROLLING LOW-TEMPERATURE ENVIRONMENT

    公开(公告)号:US20200209127A1

    公开(公告)日:2020-07-02

    申请号:US16728984

    申请日:2019-12-27

    Abstract: The invention provides a test device and method for controlling a low-temperature environment. A double-layer stainless steel plate forms an interlayer cavity of a cooling box; four walls of the cooling box are provided with a heat insulation plate; a probe thermometer is disposed on a side wall of the cooling box; both the top of a press and the bottom of an indenter of a universal testing machine are provided with a fiberglass reinforced plastic pipe cover; the cooling box is disposed on the press; the indenter is disposed in the cooling box through a through hole; a cold bath device communicate with the cooling box; the cold bath device and the interlayer cavity are provided with a freezing liquid; a stress-strain data acquisition instrument is connected to a sample in the cooling box through a strain gage and a strain gage connection line.

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