毛细透排水带排水性能试验研究
发布时间：2019-06-05 11:37
【摘要】：探讨毛细透排水带的毛细力,开展室内砂土排水试验,分析砂土中设置毛细透排水带下的流速、含水量以及其防淤堵性能。研究结果表明,路基、边坡等构筑物上毛细透排水带铺设的角度取值范围建议为10°~15°,毛细透排水带加强了砂土的排水能力,在变水头非饱和阶段埋深对排水效果影响微弱,毛细透排水带能够促使其周边土体形成反滤层。该研究成果为毛细透排水带的实际工程应用提供了参考。
[Abstract]:The capillary force of capillary permeable drainage zone is discussed, and the indoor sand drainage test is carried out. The velocity, water content and silting resistance of sand under capillary permeable drainage zone are analyzed. The results show that the angle range of capillary drainage zone laying on roadbed, slope and other structures is 10 掳~ 15 掳. The capillary permeable drainage zone strengthens the drainage capacity of sand, and the influence of buried depth on drainage effect is weak in the stage of changing water head. Capillary permeable drainage zone can promote the formation of filter layer in the surrounding soil. The research results provide a reference for the practical engineering application of capillary permeable drainage belt.
【作者单位】： 中南大学土木工程学院;湖南省交通科学研究院;高速铁路建造技术国家工程实验室;
【基金】：湖南省科技人才专项-湖湘青年英才计划项目(2016RS3037) 中国铁路总公司重点项目(2015G006-F) 中南大学研究生自主探索创新项目(2017zzts529,2016zzts080) 国家自然科学基金资助项目(51678572,51408613)
【分类号】：TU411
，
本文编号：2493501
[Abstract]:The capillary force of capillary permeable drainage zone is discussed, and the indoor sand drainage test is carried out. The velocity, water content and silting resistance of sand under capillary permeable drainage zone are analyzed. The results show that the angle range of capillary drainage zone laying on roadbed, slope and other structures is 10 掳~ 15 掳. The capillary permeable drainage zone strengthens the drainage capacity of sand, and the influence of buried depth on drainage effect is weak in the stage of changing water head. Capillary permeable drainage zone can promote the formation of filter layer in the surrounding soil. The research results provide a reference for the practical engineering application of capillary permeable drainage belt.
【作者单位】： 中南大学土木工程学院;湖南省交通科学研究院;高速铁路建造技术国家工程实验室;
【基金】：湖南省科技人才专项-湖湘青年英才计划项目(2016RS3037) 中国铁路总公司重点项目(2015G006-F) 中南大学研究生自主探索创新项目(2017zzts529,2016zzts080) 国家自然科学基金资助项目(51678572,51408613)
【分类号】：TU411
，
本文编号：2493501
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