考虑降解率下的垃圾土降解压缩量计算模型

刘东燕; 冯国建; 罗云菊; 赵新涛

doi:10.11835/j.issn.1674-4764.2010.02.004

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考虑降解率下的垃圾土降解压缩量计算模型

更新时间：2023-11-28

- 考虑降解率下的垃圾土降解压缩量计算模型
- Degradation Settlement Model of Municipal Solid Wastewith the Degradation Rate
- 土木与环境工程学报（中英文） 2010年32卷第2期页码：14-18
- 作者机构：
  
  重庆大学土木工程学院,重庆,400045
- 作者简介：
- 基金信息：
  
  重庆大学研究生科技创新基金项目(200811A1B0060295)
- DOI：10.11835/j.issn.1674-4764.2010.02.004
  中图分类号：
- 纸质出版：2010
- 稿件说明：
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刘东燕, 冯国建, 罗云菊, 等. 考虑降解率下的垃圾土降解压缩量计算模型[J]. 土木与环境工程学报（中英文）, 2010,32(2):14-18.

LIU Dongyan, FENG Guojian, LUO Yunju, et al. Degradation Settlement Model of Municipal Solid Wastewith the Degradation Rate[J]. Journal of Civil and Environmental Engineering, 2010, 32(2): 14-18.
刘东燕, 冯国建, 罗云菊, 等. 考虑降解率下的垃圾土降解压缩量计算模型[J]. 土木与环境工程学报（中英文）, 2010,32(2):14-18. DOI： 10.11835/j.issn.1674-4764.2010.02.004.

LIU Dongyan, FENG Guojian, LUO Yunju, et al. Degradation Settlement Model of Municipal Solid Wastewith the Degradation Rate[J]. Journal of Civil and Environmental Engineering, 2010, 32(2): 14-18. DOI： 10.11835/j.issn.1674-4764.2010.02.004.

摘要

从无机物质量不变出发，在考虑降解率与密度变化的情况下，围绕垃圾土的密度、质量与体积三者关系，结合由自配试样进行降解试验获得的降解率规律，推导了垃圾土一维降解压缩模型。研究结果表明，降解压缩量与初始时刻有机物的体积百分含量、降解率及初始高度有关，且成正比关系。利用该模型对重庆市某垃圾填埋场的有机物降解沉降量进行了计算，可以看出降解沉降量与时间呈指数函数关系，在填埋初期降解沉降速率较大，随着时间推移，降解沉降量趋于稳定。

Abstract

By the law of conservation of mass

onedimensional municipal solid waste(MSW) degradation model was proposed with considering the degradation and density fluctuation

the relationship between density

quality and volume and the degradation characteristics obtained from the degradation test.With the analysis

it was found that the settlement of degradation was positive proportional with the following three elements: the volume percentage of organic matter

the rate of degradation and the initial height.As a case study

the degradation settlement of Chongqing MSW landfill was predicted.And it was found that the relationship between the settlement and the time showed exponential attenuation trend

in which the degradation settlement of MSW landfill was large in the initial stages

and then it gradually stabilized with the time.

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