| 透水模板布几何参数对透排水性能的影响 |
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| 引用本文： | 田正宏,王会,郑东健,孟思宇,王晓.透水模板布几何参数对透排水性能的影响[J].江苏大学学报(自然科学版),2009,30(5). |
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| 作者姓名： | 田正宏 王会 郑东健 孟思宇 王晓 |
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| 作者单位： | 河海大学,水文水资源与水利工程科学国家重点实验室,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为研究透水模板布(controlled permeability formwork liner,CPEL)透排水性能的影响因素,采用吸力平板仪、厚度测试仪等测试了不同压力下3种不同规格透水模板布的孔隙、厚度等几何参数.分析了孔隙累积分布曲线、孔隙率、压力及厚度的相互关系;结合CPFL水平和垂直渗透系数,深入探讨了CPFL孔隙分布、厚度和压力对透水模板布透排水性能的影响.并对交通运输部JT/T736-2009<混凝土工程用透水模板布>标准中厚度压缩比等指标提出了具体修改建议.研究表明:3种CPFL孔隙率和厚度均在32 kPa压力左右时趋于某一稳定值;CPFL透排水性能的内外部因素耦合作用明显.
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| 关 键 词： | 透水模板布 孔隙分布 厚度测试 压力 渗透系数 压缩比 |
Permeability performance of controlled permeable formwork liner influenced by geometric parameters |
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| Tian Zhenghong,Wang Hui,Zheng Dongjian,Meng Siyu,Wang Xiao.Permeability performance of controlled permeable formwork liner influenced by geometric parameters[J].Journal of Jiangsu University:Natural Science Edition,2009,30(5). |
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| Authors: | Tian Zhenghong Wang Hui Zheng Dongjian Meng Siyu Wang Xiao |
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| Institution: | State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering;Hohai University;Nanjing;Jiangsu 210098;China |
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| Abstract: | In order to study the influence factors of permeability performance on controlled permeable formwork liner(CPFL),a detailed analysis on the mutual relationship among porosity,pressure and thickness of CPFL was given by using the suction plane table,thickness gauge and so on.Taking account of the horizontal and vertical permeability coefficients of CPEL,a further discussion on the permeability performance of CPFL influenced by the pore distribution total curve,thickness and pressure was carried out.The resul... |
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| Keywords: | controlled permeability formwork liner pore size distribution thickness measurement pressure permeability coefficient compression ratio |
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