Geotextile seam tensile strength test sample preparation device

The utility model relates to a sample preparation device for a geotextile seam tensile strength test. The utility model aims to accurately and quickly cut a geotextile seam tensile strength test sample, so that the test speed is greatly improved, and the size accuracy of the sample is ensured. According to the technical scheme, the device comprises a first square plate, a second square plate, a third square plate, a seam line, a jaw line and a handle. The first square plate, the second square plate and the third square plate are rectangular, the long sides of the first square plate and the second square plate are vertically connected, and the long side of the second square plate is vertically connected with the long side of the third square plate; the two second square plates and the two third square plates are symmetrically arranged on the two sides of the first square plate. The seam line is overlapped with the long side of the first square plate; the two jaw lines are arranged on the third square plate, ar