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首页> 外文期刊>Waste management & research >Unsaturated consolidation theory for the prediction of long-term municipal solid waste landfill settlement
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Unsaturated consolidation theory for the prediction of long-term municipal solid waste landfill settlement

机译：不饱和固结理论在城市垃圾填埋场长期沉降预测中的应用

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摘要

The understanding of long-term landfill settlement is important for landfill design and rehabilitation. However, suitable models that can consider both the mechanical and bio-decomposition mechanisms in predicting the long-term landfill settlement are generally not available. In this paper, a model based on unsaturated consolidation theory and considering the biodegradation process is introduced to simulate the landfill settlement behaviour. The details of problem formulations and the derivation of the solution for the formulated differential equation of gas pressure are presented. A step-by-step analytical procedure employing this approach for estimating settlement is proposed. The proposed model can generally model the typical features of short-term and long-term behaviour. The proposed model also yields results that are comparable with the field measurements.
机译：了解长期的垃圾填埋场对于垃圾填埋场的设计和修复非常重要。但是，在预测长期垃圾填埋场沉降时，既不能考虑机械分解机制又可以考虑生物分解机制的合适模型通常是不可用的。本文提出了一种基于不饱和固结理论并考虑生物降解过程的模型来模拟垃圾填埋场的沉降行为。给出了问题公式的详细信息以及所公式化的气压微分方程的解的推导。提出了采用这种方法估算沉降的分步分析程序。所提出的模型通常可以对短期和长期行为的典型特征进行建模。所提出的模型还产生了与现场测量结果相当的结果。

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