Laboratory Tests on Cemented Bead-treated Lightweight Soils from High-water-content Dredged Sludge

卞夏; 邓乘; 邓永锋; 洪振舜

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Laboratory Tests on Cemented Bead-treated Lightweight Soils from High-water-content Dredged Sludge

更新时间：2025-12-11

- Laboratory Tests on Cemented Bead-treated Lightweight Soils from High-water-content Dredged Sludge
- Vol. 29, Issue 5, Pages: 524-529(2009)
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  CLC： U411
- Published：2009
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[1]卞夏,邓乘,邓永锋,洪振舜.高含水率疏浚淤泥混合固化轻质土试验研究[J].防灾减灾工程学报,2009,29(05):524-529.

卞夏, 邓乘, 邓永锋, et al. Laboratory Tests on Cemented Bead-treated Lightweight Soils from High-water-content Dredged Sludge[J]. 2009, 29(5): 524-529.
[1]卞夏,邓乘,邓永锋,洪振舜.高含水率疏浚淤泥混合固化轻质土试验研究[J].防灾减灾工程学报,2009,29(05):524-529. DOI：

卞夏, 邓乘, 邓永锋, et al. Laboratory Tests on Cemented Bead-treated Lightweight Soils from High-water-content Dredged Sludge[J]. 2009, 29(5): 524-529. DOI：

摘要

疏浚淤泥EPS颗粒混合轻质土是一种新型的轻质土工材料

具有密度小、强度高等特点

在工程中具有广泛的应用前景。本文对高含水率的白马湖疏浚淤泥进行了室内轻质土配比试验

系统分析了水泥掺量、EPS颗粒掺量以及养护龄期等因素对轻质土的密度及无侧限抗压强度这两个重要参数的影响规律。研究结果表明

轻质土的密度主要由EPS颗粒掺量控制

而水泥掺量和养护龄期对轻质土的密度影响较小;轻质土的强度受水泥掺量、EPS颗粒掺量和养护龄期的影响

其强度随龄期与水泥掺量的变化规律与一般水泥土一致

而强度与EPS颗粒掺量之间存在一个阈值。

Abstract

The bead-treated lightweight soil made from dredged sludge is a new kind of geo-materials with light density and high undrained shear strength.It can be used widely in civil engineering

highway engineering

etc.In this study

the dredged sludge of Baima Lake

beads and cement（32.5#） are used to make the mix proportion researches

and two key parameters of the lightweight soil（the density and the unconfined strength） at different cement dosages

EPS volume dosages and curing periods are discussed.The results show that the density of the lightweight soils is mainly influenced by the EPS volume dosage

while the strength is influenced by all the factors including the cement dosage

EPS volume dosage and curing period.It is emphasized that the relation between the strength and the cement dosage and curing period is similar to the common cemented soils

and there is a threshold of EPS volume dosage for the strength.

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references

轻质土密度、强度与材料组成的关系研究 [J]. 朱伟,姬凤玲,李明东,马殿光,汤峻. 岩土力学 . 2007(07)

影响塑料发泡颗粒轻质土强度的因素及其试验研究 [J]. 顾欢达,顾熙. 公路交通科技 . 2007(03)

淤泥EPS颗粒混合轻质土抗剪强度的影响因素 [J]. 朱伟,李明东,汤峻,张春雷. 公路 . 2007(02)

疏浚淤泥泡沫塑料颗粒轻质混合土的抗剪强度特性 [J]. 朱伟,姬凤玲,马殿光,李明东. 岩石力学与工程学报 . 2005(S2)

淤泥质土的固化及力学特性的研究 [D]. 郭印. 浙江大学 2007

淤泥泡沫塑料颗粒轻质混合土力学特性研究 [D]. 姬凤玲. 河海大学 2005

聚苯乙烯轻质混合土工程特性的试验研究 [D]. 董金梅. 河海大学 2005

EPS颗粒混合轻质土物理力学特性的两相体模型研究 [D]. 汤峻. 河海大学 2006

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