城市固体废弃物持水率的研究  

STUDY ON WATER HOLDUP OF MUNICIPAL SOLID WASTE

作　　者：涂帆[1] 钱学德 崔广强[1] 吴忠良[1] 方玲[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021 [2]密歇根州环境保护厅,美国密歇根兰辛48913

出　　处：《岩石力学与工程学报》2008年第A02期3305-3311,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：福建省自然科学基金计划资助项目(E0710019)

摘　　要：提出城市固体废弃物填埋场垃圾土持水率研究的室内试验方法,并对根据我国南方某填埋场垃圾组成配置的垃圾混合物进行试验。试验表明,垃圾土湿重持水率随干密度的增大而减小。垃圾土密实状态下的体积持水率也随上覆压力和干密度的增大而减小,但在疏松状态下,其体积持水率开始时随上覆压力和干密度的增大而增大,达到最大值后,随上覆压力和干密度的增大而减小。A laboratory testing method, which is used to measure water holdup of municipal solid waste（MSW） is introduced. A artificial solid waste is used in the study, which is made according to the composition of a municipal solid waste landfill located in Southern China. In general, the dry gravimetric water holdup of the waste decreases with increasing of its dry density, the waste density is another important factor affecting water holdup. The volumetric water holdup for the dense waste also decreases with increasing overburden pressure and dry density. However, the volumetric water holdup for the loose waste initially increases with the increase of overburden pressure and dry density. After the volumetric water holdup reaches a maximum value, the volumetric water holdup then decreases with the increase of overburden pressure and dry density.

关 键 词：土力学 城市固体废弃物 持水率 渗沥液 填埋场 

分 类 号：X705[环境科学与工程—环境工程] TU431[建筑科学—岩土工程]