| 悬挂式微透水防渗墙的土石坝渗流计算 |
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| 引用本文： | 徐 毅,侍克斌,毛海涛. 悬挂式微透水防渗墙的土石坝渗流计算[J]. 水资源与水工程学报, 2014, 25(4): 138-141 |
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| 作者姓名： | 徐 毅 侍克斌 毛海涛 |
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| 作者单位： | （1.新疆水利水电勘测设计研究院, 乌鲁木齐 830000； 2.新疆农业大学 水利与土木工程学院, 乌鲁木齐 830000；3.重庆三峡学院 土木工程学院, 重庆404100) |
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| 基金项目： | 国家自然科学基金项目(51309262、50969010) ; 新疆科技支撑计划项目(201233132) ; 新疆水利水电工程重点学科基金项目( xjzdxk－2010－02－12) |
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| 摘 要： | 以往对于土石坝渗流计算都是假定防渗体是完全不透水的,这样的计算结果难免会出现偏差。本文通过赋予悬挂式防渗墙合理渗透系数的情况下,利用有限元法对无限深透水地基上的土石坝建立数学模型进行理论计算。通过对比两种悬挂式防渗墙方案,选取不同深度进行渗流计算和分析。结果表明:防渗墙的位置越靠近上游防渗效果越好,此时防渗墙的有效深度为68倍的坝前水深。
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| 关 键 词： | 微透水防渗体 非均质无限深透水地基 有限单元法 悬挂式防渗墙 |
Calculation of seepage flow of earth rock dam for hanging micro porous cut-off wall |
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| XU Yi,SHI Kebin,MAO Haitao. Calculation of seepage flow of earth rock dam for hanging micro porous cut-off wall[J]. Journal of water resources and water engineering, 2014, 25(4): 138-141 |
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| Authors: | XU Yi SHI Kebin MAO Haitao |
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| Abstract: | The seepage calculation of earth rock dam is based on that the anti-seepage body is completely impervious to water in the past. The error of calculated result is inevitable. This paper gave the suspended cutoff wall a reasonable permeability coefficient, and established mathematical model by using finite element method of earth rock dam on infinite deep pervious foundation carried out theoretical calculation.By comparing the two kinds of schemes of suspended cut-off wall,it conducted seepage calculation and analysis in different depths , and draw the following conclusions that the closer the cut-off wall gets to upstream, the better the anti-seepage effect.The effective depth of impervious wall is 6~8 times of water depth before dam. |
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| Keywords: | micro porous impervious body non-homogeneous infinite deep pervious foundation finite element method suspended cutoff wall |
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