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首页> 外文期刊>Archives of Hydro-engineering and Environmental Mechanics >Fluidised Fly-Ash Cement-Bentonite Cut-off Walls in Flood Protection
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Fluidised Fly-Ash Cement-Bentonite Cut-off Walls in Flood Protection

机译：流化粉煤灰水泥-膨润土防渗墙在防洪中的应用

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Vertical barrier walls are widely used in environmental control systems to restrict the lateral spreading of liquid or gaseous contaminants and for seepage control through and beneath levees. The barrier walls are constructed in single or two phases using slurry composed mainly of bentonite, cementitious materials and water to maintain the trench stability and finally low hydraulic conductivity of barrier. A turning point in the development of slurry technology arose from research demonstrating the positive effects of blast furnace slag or fly-ashes on slurry properties in terms of reduced hydraulic conductivity. This paper presents the implementation of an experimental section of cut-off wall in the subsoil of a modernised flood embankment along the Vistula River and the results of controlling analyses of applied hardening slurry with an admixture of activated fluidal ashes from hard coal. The results of tests confirm the possibility of practical application of fluidal ashes as active components to hardening slurry and obtaining - depending on the suspension composition - of favourable technological and exploitation properties of this material.
机译：垂直隔离墙广泛用于环境控制系统中，以限制液体或气体污染物的横向扩散，并用于通过堤防和堤防的渗漏控制。使用主要由膨润土，胶凝材料和水组成的浆液，将挡墙分为单相或两相，以保持沟槽的稳定性并最终降低阻隔层的水力传导性。浆料技术发展的转折点来自研究，该研究表明高炉矿渣或粉煤灰对降低水力传导率具有积极的作用。本文介绍了在维斯杜拉河沿岸的现代化洪泛路堤的地下土壤中防渗墙实验部分的实施情况，以及对应用的硬化泥浆与硬煤活化流体灰分混合物进行控制分析的结果。测试结果证实了流体灰分作为活性组分在硬化浆液中的实际应用的可能性，并根据悬浮液的组成，获得了该材料良好的技术和开发性能。

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