长期堆载预压处理软土地基效果评价OACSTPCD

In order to evaluate the effects of ground subsequent settlement on newly constructed pipeline after 10 years of long-term preloading,systematic evaluation of the site is conducted by indoor and on-site tests,and hyperbolic method and finite element method are used to predict subsequent settlement,respectively.The re-sults show that the physical and mechanical parameters of each layer improve significantly after 10 years of pre-loading on the site,but the properties of the silt layer are relatively poor,which is the main stratum for subse-quent settlement of the site.The main consolidation has basically completed after 10 years of preloading,with a consolidation degree of 95.5％,which indicates that the effect of long-term preloading is preferable.For the site loaded for many years,an elastic model is used for subsequent settlement numerical calculations,and pa-rameters obtained from on-site experiments are selected for calculation,the calculation results are in good agreement with the measured data,and the remaining average settlement of the site is about 15.4 cm.Conventional preventive measures can be taken for road pipelines in the park.