DEVICE FOR MEASURING TRUE TRIAXIAL CREEP OF GEOTECHNICAL ENGINEERING TEST BLOCK AND METHOD THEREFOR

摘要

Disclosed is a device for measuring the true triaxial creep of a geotechnical engineering test block, comprising a supporting structure and further comprising four confining pressure plates and an upper and a lower compression plate to form an enclosed cavity for enclosing the test block. The confining pressure plates comprise two long confining pressure plates and two short confining pressure plates. The upper and the lower compression plates are a top steel plate (11) and a bottom steel plate (14) which are rectangular. Two L-shaped long confining pressure plates (13) which are bent outwards are erected at two adjacent sides of the bottom steel plate (14), and two L-shaped short confining pressure plates (12) which are bent outwards are erected at the remaining two sides. The bottom ends of the short confining pressure plates (12) are placed on the bottom steel plate (14). The top steel plate (11) is erected on the top ends of the long confining pressure plates (13), and the top steel plate (11) snugly fits on the inner side surfaces of the two short confining pressure plates (12). Pressure sensors (10) are vertically arranged inside the supporting structure corresponding to all of the four confining pressure plates and the upper and the lower compression plates. The pressure sensors (10) are respectively provided with a grating ruler (4). Further provided is a method for measuring the true triaxial creep of a geotechnical engineering test block by using the device.