Methods and apparatus for measuring double-interface shear in geosynthetics and geomaterials

摘要

The present invention generally provides a double-interface shear device for measurement of interface strength between geosynthetics and geomaterials. The device provides for the convenient application of normal loads, for the measurement of interface strength prior to and following deformation along the interface, and for the measurement of volume changes of the specimen normal to the interface. In addition, the invention provides methods of measuring shear strength of the interface between geoengineering materials.