城市垃圾填埋场有机物降解沉降模型的研究  

Degradation settlement model of organic substance of municipal solid waste landfill

作　　者：张振营[1,2] 陈云敏[1] 

机构地区：[1]浙江大学岩土工程研究所,浙江杭州310027 [2]青岛建筑工程学院土木系,山东青岛266033

出　　处：《岩土力学》2004年第2期238-241,共4页Rock and Soil Mechanics

基　　金：国家自然科学基金资助项目(No. 59678020);山东省教育厅资助项目(No. J00L 54)。

摘　　要：研究城市垃圾填埋场的有机物降解沉降是非常重要的,有机物的降解沉降是填埋场的主要沉降,并且降解沉降将持续很长一段时间,较大的沉降能够导致防渗系统的渗漏并损坏覆盖系统。由于垃圾的非均匀性,其土工特性随地域及时间而改变,所以,计算垃圾填埋场的降解沉降是比较困难的。在试验及理论推导的基础上,提出了一种有机物的降解沉降模型,该模型参数较少,利用该模型预测了天子岭垃圾填埋场的库容及有机物的降解沉降。Study on settlement of organic substance degradation is very important for municipal solid waste(MSW)landfills. The long-term settlement of MSW landfill resulting from decomposition will usually represent the major proportion of total settlement, and it is likely to continue for many years. A large settlement may lead to breakage of the geomembrane and damage of the cover system in a modern MSW landfill. It is a very complex task to calculate the settlement because the waste material exhibits heterogeneous engineering properties that vary over locations and time with a landfill. Now a new degradation settlement model of organic substance of MSW landfill is presented based on the testing data. The model has less parameter. The degradation settlement of Tianziling MSW landfill is predicted by applying the model.

关 键 词：垃圾填埋场 有机物降解 沉降模型 

分 类 号：TU441[建筑科学—岩土工程]