| 生活垃圾填埋过程中的沉降分析与计算 |
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| 引用本文： | 谢强,张永兴,张建华.生活垃圾填埋过程中的沉降分析与计算[J].岩土力学,2010,31(7):2135-2140. |
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| 作者姓名： | 谢强 张永兴 张建华 |
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| 作者单位： | 1.重庆大学 土木工程学院，重庆 400045；2. 里斯本理工大学 岩土工程中心，里斯本 1049-001，葡萄牙 |
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| 基金项目： | 重庆市建设委员会2001年科学技术资助项目(城科字2001第，2004年重庆大学高层次人才科研启动基金 |
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| 摘 要： | 结合生活垃圾PTH蠕变方程式中的相关参数，依据重庆市长生桥垃圾卫生填埋场的填埋工艺和填埋方案，得出填埋历程与填埋高度的关系曲线。通过与土压缩理论计算方法相比较发现，土压缩理论中参数选取主要以经验为主，假设条件也与实际情况不符，而PTH蠕变模型中各参数均可由室内压缩蠕变试验得出，依据充分。计算表明，重庆市长生桥垃圾卫生填埋场在填埋过程中产生的沉降达25.72%，在容量估算中如果忽略这一数据则会对填埋场的经济性分析产生一定影响。
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| 关 键 词： | 生活垃圾 卫生填埋场 沉降 蠕变 土压缩理论 |
| 收稿时间： | 2009-02-11 |
Analysis and calculation of municipal solid waste settlement during landfilling |
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| XIE Qiang,ZHANG Yong-xing,ZHANG Jian-hua.Analysis and calculation of municipal solid waste settlement during landfilling[J].Rock and Soil Mechanics,2010,31(7):2135-2140. |
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| Authors: | XIE Qiang ZHANG Yong-xing ZHANG Jian-hua |
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| Institution: | 1. College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. Centro de Geotecnia, Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisbon 1049-001, Portugal |
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| Abstract: | Focus on settlement analysis and calculation of municipal solid waste (MSW) during landfilling. After discussing parameters of PTH creep model of MSW, relation curves between landfilling course and MSW landfill’s height are obtained with the creep equation, based on landfilling process and landfilling program of Chongqing Changshengqiao sanitary landfill. Comparing with the method of soil consolidation theory, it is found that parameters selection still lies on experiences in the method of soil consolidation theory; and its hypothesis is not accordance with the practical situation. While all parameters in PTH creep equation can be acquired on an adequate basis by creep compressive test indoor. The results by PTH creep equation indicate that the total settlement of 25.7% occurs during landfilling in Chongqing Changshengqiao waste sanitary landfill. Economic analysis will lead to a wrong conclusion if this datum is ignored while estimating the capability of landfills. |
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| Keywords: | municipal solid waste (MSW) sanitary landfill settlement creep soil consolidation theory |
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