Large-area on-site direct shear test equipment

The invention discloses large-area on-site direct shear test equipment, and belongs to the field of construction test equipment. The test equipment comprises a shear box arranged in a test pit and sleeved outside a test sample, a normal load device arranged at the top end of the shear box and perpendicular to the shear box, a shear load device arranged between the wall of the test pit and the shear box and perpendicular to the shear box, and a measuring device, wherein the relative mobility of a rolling sliding plate enables the shear box and the normal load device to be always positioned at the same normal line, so that eccentric load caused by inertia or dislocation movement and the like is avoided; and meanwhile, the test equipment is used for directly testing on site, and therefore ismore in line with the natural state than an indoor test, and the obtained test result is more in accordance with the technical requirements of actual engineering. 本发明公开了一种大面积现场直剪试验设备，属于施工试验设备领域。包括设置在试坑内并套装在试样外侧的剪力盒、设置在剪力盒顶端并与