Long-Term Properties of Airfoam-Treated Lightweight Soil Made from Dredged Clay
Long-Term Properties of Airfoam-Treated Lightweight Soil Made from Dredged Clay
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DOI：
10.1520/jai102134
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发表时间：
2009-03
期刊：
影响因子：
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通讯作者：
Y. Watabe;Masanori Tanaka;H. Saegusa;H. Shinsha;T. Tsuchida
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文献类型：
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作者：
Y. Watabe;Masanori Tanaka;H. Saegusa;H. Shinsha;T. Tsuchida
经过空气泡沫处理的土壤重量轻，可提供早期的抗剪强度发展和疏浚土壤的有效利用。本文总结了对神户港岛和东京国际机场海堤回填的轻质土壤进行的 10 年跟踪研究。这两个地点是1996年进行的早期建设案例，包括神户地震灾难后的恢复项目和东京国际机场的海上扩建项目。进行了取样和实验室测试，以研究物理和机械性能，以比较初始材料状况。检查了土壤参数的深度剖面，例如容重、含水量、pH、钙含量、剪切强度和针刺阻力。结果表明，经气泡处理的轻质土的物理力学性能满足其要求，表明该轻质土具有足够的耐久性，可用作沿海地区建筑的土工材料。
Airfoam-treated soil is lightweight and provides for the early age development of shear strength and effective utilization of dredged soils. This paper summarizes a 10-year follow-up study of the lightweight soils that were placed as backfill at the seawall in Kobe Port Island and Tokyo International Airport. These two sites are the early case examples of construction undertaken in 1996 including the recovery project after the Kobe earthquake disaster and the offshore expansion project of the Tokyo International Airport. Sampling and laboratory testing were carried out in order to investigate the physical and mechanical properties to compare the initial material condition. The depth profiles of the soil parameters such as bulk density, water content, pH, Ca content, shear strength, and needle penetration resistance were examined. Consequently, it was confirmed that the physical and mechanical properties of the airfoam-treated lightweight soil satisfied their required performances, indicating that the lightweight soil has sufficient durability for use as geomaterial for construction in coastal areas.