The invention relates to the technical field of
calcareous sand property research, and discloses a
calcareous sand
impact crushing test device which comprises a sample
barrel, a supporting frame, a guide rod, a pressure applying hammer and a pressure bearing plate, the sample
barrel is used for containing
calcareous sand, the supporting frame is fixedly connected with the sample
barrel, the guide rod is vertically arranged in the sample barrel, and the pressure applying hammer is fixedly connected with the supporting frame. The pressure applying hammer and the pressure bearing plate are arranged on the guide rod in a sleeving mode and can slide along the guide rod. Compared with the prior art, the device is simple and reliable in structure and easy to operate, the defects that an existing simple device is poor in
impact precision and low in
repeatability are overcome, the structure of the device can be rapidly adjusted through
assembly and disassembly of a small number of components, then different tests are completed, and the device is particularly suitable for teaching,
basic research and field application. The invention further provides a calcareous sand
impact crushing test method, initial
gradation of calcareous sand and impact parameters such as impact times and
impact energy are coupled to form a model, and popularization research and teaching practice of calcareous sand impact crushing characteristics are facilitated.