考虑固体颗粒压缩变形的城市固体废弃物本构模型

doi:10.13722/j.cnki.jrme.2014.1271

Abstract
Figure/Table
References (15)
Related Citation (0)

Download: PDF (1288 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Currently，soil models have been widely adopted to represent the waste behavior in numerical analysis for landfills. Although some aspects of waste behavior are similar to soils，a number of unique characteristics of municipal solid waste(e.g. consist of large number of compressible solid) cannot be accounted for by existing soil models. This paper aims to propose a constitutive model which can reflect the behavior of municipal solid waste more properly so that it can be applied in numerical analysis and serve for the landfill operation. On the basis of the modified Cam-clay model，a constitutive model for municipal solid waste(MSW) considering the deformation of compressible sold was established. The MSW can be divided into two parts：one part includes the incompressible solid particles and the voids，and the other parties the compressible solid particles. In detail，assume that the stress-strain behavior of the first part which includes the incompressible solid particles and the voids is elastic-plastic while the deformation of the other part which is large and irreversible is assumed to be plastic deformation. The proposed model is based on the modified Cam-clay model and the parameters in the model have clear physical meanings. It is found that the model can properly reflect the stress-strain behavior of MSW by comparing the numerical calculation results using the model with indoor triaxial drained test results of the municipal solid waste. As a result，the accuracy and rationality of the model is confirmed.

Key words： soil mechanics modified Cam-clay model municipal solid waste(MSW) constitutive model stress-strain relationship drained triaxial tests

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	FENG Shijin1
	2
	DENG Yingjun1

Cite this article:

FENG Shijin1,2,DENG Yingjun1. CONSTITUTIVE MODEL FOR MUNICIPAL SOLID WASTE CONSIDERING THE DEFORMATION OF COMPRESSIBLE SOLID[J]. , 2015, 34(S2): 4360-4365.

URL:

https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.1271 OR https://rockmech.whrsm.ac.cn/EN/Y2015/V34/IS2/4360

[1] MARQUES A C M，FILZ G M，VILAR O M. Composite compressibility model for municipal solid waste[J]. Journal of Geotechnical and Geoenvironmental Engineering，2003，129(4)：372–378.

[2] OWEIS I S. Estimate of landfill settlements due to mechanical and decompositional processes[J]. Journal of Geotechnical and Geoenvironmental Engineering，2006，132(5)：644–650.

[3] REDDY K，HETTIARACHCHI H，GANGATHULASI J，et al. Geotechnical properties of synthetic municipal solid waste[J]. International Journal of Geotechnical Engineering，2009，3(3)：429–438.

[4] MACHADO S L，CARVALHO M F，VILAR O M. Constitutive model for municipal solid waste[J]. Journal of Geotechnical and Geoenvironmental Engineering，2002，128(11)：940–951.

[5] MACHADO S L，VILAR O M，CARVALHO M F. Constitutive model for long term municipal solid waste mechanical behavior[J]. Computers and Geotechnics，2008，35(5)：775–790.

[6] JONES D，DIXON N. Landfill lining stability and integrity：the role of waste settlement[J]. Geotextiles and Geomembranes，2005，23(1)：27–53.

[7] BABU G L S，REDDY K R，CHOUKSEY S K. Constitutive model for municipal solid waste incorporating mechanical creep and biodegradation- induced compression[J]. Waste Management，2010，30(1)：11–22.

[8] GIBSON R E，LO K Y. A theory of consolidation for soils exhibiting secondary compression[M]. [S.l.]：Acta Polytechnica Scandinavica，1961：1–15.

[9] BABU G L S，CHOUKSEY S K. Model for analysis of fiber- reinforced clayey soil[J]. Geomechanics and Geoengineering：An International Journal，2010，5(4)：277–285.

[10] BABU G L S，CHOUKSEY S K. Analytical model for stress-strain response of plastic waste mixed soil[J]. Journal of Hazardous，Toxic， and Radioactive Waste，2012，16(3)：219–228.

[11] POWRIE W，BEAVEN R P. Hydraulic properties of household waste and implications for landfills[C]// Proceedings of the ICE-Geotechnical Engineering. London：Lesley Wilson Press，1999，137(4)：235–247.

[12] SCHOFIELD A N，WROTH P. Critical state soil mechanics[M]. London：McGraw-Hill，1968：93–115.

[13] WOOD D M. Soil behaviour and critical state soil mechanics[M]. Cambridge：Cambridge University Press，1990：139–150.

[14] ROSCOE K H，BURLAND J B. On the generalised stress-strain behaviour of wet clay [M]. Cambridge：Cambridge University Press，1968：535–560.

[15] 冯世进. 城市固体废弃物静动力强度特性及填埋场的稳定性分析[博士学位论文][D]. 杭州：浙江大学，2005.(FENG Shijin. Static and dynamic strength properties of municipal solid waste and stability analysis of landfill[Ph. D. Thesis][D]. Hangzhou：Zhejiang University，2005.(in Chinese))