To investigate the correlation properties of the compressibility and the shear strength of the fresh municipal solid waste (MSW), the combined tests of compression test and direct shear test were carried out by a large-scale laboratory testing equipment. Referring to the major compositions of MSW from the Tianziling landfill in Hangzhou, China, the fresh municipal solid waste testing samples were prepared in geo-environmental laboratory. The initial void ratios of the samples were 2.1. Four different vertical pressures, which were 25, 50, 100, 200 kPa were selected, and the compression times for every vertical pressure were 0, 0.25, 0.5, 1, 2, 6, 12, and 24 hours, respectively. Basing on the testing results, the relationship between the deformation and the shear strength was studied, and the curve of the settlement-void ratio-compression time-vertical pressure was obtained. The testing results show that the shear strength of the MSW has some connection with the compression strain of the MSW, and the shear strength increase with the increasement of the vertical pressure and the compression strain. Besides, the relationship between the shear strength and the vertical pressure applied on the test sample is conformity with the law of Coulomb. Furthermore, some parameters of the compressibility and the shear strength of the MSW are obtained, those are the compression coefficient is 1.4 MPa-1, the compression index is 0.372, the internal friction angle varies from 24 to 31 degree, and the cohesion force varies from 9 to 23 kPa．
ZHANG Zhen-ying, YAN Li-jun. Correlation properties of the deformation and the shear strength of fresh municipal solid waste. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2014, 48(11): 1962-1967.
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