泡沫流体对堤基土体渗流特性影响分析
Journal of Hohai University(Natural Sciences)(2023)
Abstract
针对泡沫流体对土体渗流的影响机制仍不清晰的问题,开展了室内无泡沫流体渗透破坏试验与泡沫流体抑制渗透破坏试验,对土体渗流特征及泡沫流体对土体渗流的影响进行了研究.试验结果表明:泡沫流体对堤基土体渗流具有显著调控作用,可通过滞留在孔隙中的气泡增大渗流阻力,将局部土体转变为非饱和状态,增强土体抗渗性能;泡沫流体可延长渗流路径,降低水力梯度,抑制土体渗透破坏的发展.
MoreKey words
embankment foundation,seepage failure,foam fluid,pressure gradient,seepage regulation
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