Field measurement of Poisson's ratio for municipal solid waste

摘要

Poisson's ratio is used in engineering calculations. The results of this MSW property measurements are distinguished by a large scatter of results. In the summer of 2013 field measurements of the Poisson's ratio on the MSW landfill of 7.5 m in height were carried out by a well geophone method. A 3-D seismic pickup probe was installed in a drilled uncased borehole of 100 mm in diameter. Every meter along the hole depth was measured. When measuring the near-surface wave velocity the wave arrival time was determined by the first breaks in seismograms because phase loci, automatically determined by a control program, led to considerable errors. Estimation of the first brakes was done using MASW-survey (multichannel analysis of surface waves) of the MSW mass carried out at the same time.