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摘要:
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疏浚泥固化处理后用作填方用土是疏浚泥处理的有效方法,但在我国还没有在实际工程中应用过。结合我国实际条件,在现场进行了疏浚泥固化处理的施工、浇筑,并对填筑地基进行了取样强度试验和原位静力触探试验研究。结果表明固化土的强度随水泥掺加量的增加呈线性增长,浇筑地基取样的强度比室内制样强度降低10%~50%,填筑地基的承载力可以满足填海工程地基设计的要求,疏浚泥固化处理土可以用作填海工程的材料。
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Dredged spoils being treated by solidification method provides an effectual way to convert dredged spoils into useful filling materials.The method has not been used in practical projects in China.The authors carried out an insitu experiment of dredged spoils stabilized by cement at Yantian Port,Shenzhen, China.The unconfined compression tests and in-situ Static Cone Penetration tests were conducted on the foundation pits filled with stabilized dredged spoils.The unconfined compression strength has a linear relationship with the cement content,the strength of samples taken from the foundation decreased 10%-50% to that of samples made in the laboratory.The bearing capacity of the spoil-filled foundation can meet the demand of port engineering, and dredged spoil solidified with cement may be used as fill material for marine reclamation works.
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基金项目:
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国家自然科学基金资助项目(50379011)
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作者简介:
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参考文献:
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[1]张春雷.淤泥固化土力学性质及固化机理研究[D].河海大学,2003.
[2]孔丽艳.大面积不均匀填土区地基加固设计方案的确定——盐田港三期集装箱码头堆场地基加固工程设计简介[J].中国港湾建设,2001,(5):42-44.
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