| 城市生活垃圾渗透系数测试研究 |
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| 引用本文： | 瞿贤,何品晶,邵立明,李国建.城市生活垃圾渗透系数测试研究[J].环境工程学报,2005,6(12):13-17. |
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| 作者姓名： | 瞿贤 何品晶 邵立明 李国建 |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室,上海,200092;同济大学污染控制与资源化研究国家重点实验室,上海,200092;同济大学污染控制与资源化研究国家重点实验室,上海,200092;同济大学污染控制与资源化研究国家重点实验室,上海,200092 |
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| 基金项目： | 国家高技术研究发展计划“863”项目(2001AA644010,2003AA644020)，上海市重点学科(环境工程专业)建设项目(沪教委科[2001]44号) |
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| 摘 要： | 采用常水头测渗实验,对不同压实密度和水力梯度下的新鲜垃圾与陈垃圾的渗透系数进行测试,根据达西定律求得渗透系数值。由于垃圾的不均匀性、小颗粒的运动和大孔隙沟道流的形成和改变,实验初始阶段渗透系数值先增大至峰值,然后缓慢降低直至趋于稳定。实验稳定后,新鲜垃圾压实密度为0.75~0.95 t/m3时,渗透系数值约为1.26E-03~1.43E-03 cm/s。陈垃圾在压实密度分别为1.2和1.4 t/m3时,渗透系数为8.29E-04和1.35E-04 cm/s。
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| 关 键 词： | 生活垃圾填埋 渗透系数 上流式常水头渗透实验 |
| 文章编号： | 1008-9241(2005)12-0013-05 |
| 修稿时间： | 2004年9月10日 |
Research on hydraulic conductivity test of compacted municipal solid waste |
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| Qu Xian,He Pinjing,Shao Liming,Li Guojian.Research on hydraulic conductivity test of compacted municipal solid waste[J].Techniques and Equipment for Environmental Pollution Control,2005,6(12):13-17. |
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| Authors: | Qu Xian He Pinjing Shao Liming Li Guojian |
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| Abstract: | Hydraulic conductivity tests of fresh and decomposed municipal solid waste were conducted with constant head permeameter in the up-flow mode.Darcy's equation was used to calculate the hydraulic conductivity.At the beginning period of the experiments,hydraulic conductivity increased rapidly,and then decreased relatively smoothly to a fixed level.This phenomenon was attributed to the heterogeneous state of the waste,movement of fine particles and formation of channel flow.The hydraulic conductivity of the fresh waste varied between 1.26E-03 and 1.43E-03 cm/s when the density was between 0.75 and 0.95 t/m~3,while the hydraulic conductivity of decomposed waste at the density of 1.2 and 1.4 t/m~3 was 8.29E-04 and 1.35E-04 cm/s respectively. |
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| Keywords: | municipal solid waste landfill hydraulic conductivity constant head hydraulic conductivity test in up-flow mode |
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