Compression characteristics of MSW and analysis of capacity for landfills
城市固体废弃物的压缩性及填埋场容量分析

Microbial decomposition rules of MSW are generalized and an equation to evaluate the variation of organic substance with time or depth is proposed in this thesis. The equation is verified when compared with the results from field-test. Large-dimension compression tests are performed in laboratory and void ratio-depth curve are obtained by means of in-situ sampling. By comparison of in-situ tests results and laboratory results, an equation to estimate the capacity for landfills is presented. The proposed methods are simple and parameters are tended to be determined. The effects of organic content and decomposition rate on the settlement and capacity of landfills are quantitatively analyzed. Through calculations, it's found that the settlement of landfills is influenced by organic biodegration; especially when decomposition rate increases up to the 0.1/year level, decomposition will contribute much to the capacity of landfills.