| 城市生活垃圾填埋场沉降分析与计算 |
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| 引用本文： | 胡敏云,陈云敏. 城市生活垃圾填埋场沉降分析与计算[J]. 土木工程学报, 2001, 34(6): 88-92 |
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| 作者姓名： | 胡敏云 陈云敏 |
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| 作者单位： | 1. 浙江工业大学
2. 浙江大学 |
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| 基金项目： | 国家自然科学基金资助项目(59878060) |
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| 摘 要： | 城市生活垃圾填埋场无论在填埋过程中还是封顶后都会产生显著的沉降.填埋场的沉降一方面可以增加场区的垃圾消纳量,另一方面将对填埋场的维护和场地再利用产生不利影响.垃圾填埋体的沉降受垃圾土的自重压缩和有机质降解的综合影响.本文从分析填埋场沉降机理人手,提出填埋体的沉降由主沉降、次沉降和有机物分解沉降三部分组成,并给出了沉降估算公式;结合工程实例分析了填埋体的沉降过程,计算表明,一座设计容量为472万m3,设计填埋高度73m的填埋场的扩容率可达97%;封顶后的最终沉降约为填埋高度的10%.文中提出了实行分区填埋、分层压实和加速有机物分解等控制填埋场沉降的建议.
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| 关 键 词： | 填埋场 垃圾土 有机物分解沉降 |
| 文章编号： | 1000-131X(2001)06-0088-05 |
| 修稿时间： | 2000-05-25 |
Calculation for the Settlement of MSW Landfill |
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| Hu Minyun Chen Yunmin. Calculation for the Settlement of MSW Landfill[J]. China Civil Engineering Journal, 2001, 34(6): 88-92 |
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| Authors: | Hu Minyun Chen Yunmin |
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| Affiliation: | Hu Minyun Chen Yunmin (Zhejiang University of Technology) (Zhejiang University) |
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| Abstract: | The settlement of MSW landfill is remarkable in both during the filling process and after the covered landfill.The settlement is,on one hand,good to landfill capacity;and on the other hand,is disadvantage to the management and maintenance of landfill.The compression of the refuse soil is due to the combined influence of the self?weight and the organic matter degradation. A settlement process of landfill case is studied ,which is designed to be 73 m high with the volume of 4,720,000 m 3.The result indicates that the expansion rate of the waste capacity is up to 97%and the ultimate settlement is about 10% of the filling height. A control method of settlement is proposed in the paper.It includes to plan a suited filling cell,to compact a refuse soil to the most,and to accelerate the organic matter degradation. |
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| Keywords: | municipal solid waste landfill refuse soil decomposition settlement |
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