【摘要】：探討毛細(xì)透排水帶的毛細(xì)力,開展室內(nèi)砂土排水試驗(yàn),分析砂土中設(shè)置毛細(xì)透排水帶下的流速、含水量以及其防淤堵性能。研究結(jié)果表明,路基、邊坡等構(gòu)筑物上毛細(xì)透排水帶鋪設(shè)的角度取值范圍建議為10°~15°,毛細(xì)透排水帶加強(qiáng)了砂土的排水能力,在變水頭非飽和階段埋深對(duì)排水效果影響微弱,毛細(xì)透排水帶能夠促使其周邊土體形成反濾層。該研究成果為毛細(xì)透排水帶的實(shí)際工程應(yīng)用提供了參考。
[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 擄~ 15 擄. 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.
【作者單位】： 中南大學(xué)土木工程學(xué)院;湖南省交通科學(xué)研究院;高速鐵路建造技術(shù)國家工程實(shí)驗(yàn)室;
【基金】：湖南省科技人才專項(xiàng)-湖湘青年英才計(jì)劃項(xiàng)目(2016RS3037) 中國鐵路總公司重點(diǎn)項(xiàng)目(2015G006-F) 中南大學(xué)研究生自主探索創(chuàng)新項(xiàng)目(2017zzts529,2016zzts080) 國家自然科學(xué)基金資助項(xiàng)目(51678572,51408613)
【分類號(hào)】：TU411
，

本文編號(hào)：2493501