Statistical Analysis for Rebound Deformation Parameters of Silty Clay at Bottom of Deep Excavation in Shanghai

doi:10.3969/j.issn.0253-374x.2012.04.006

Home > Archive>Volume 40, Issue 4, 2012 >0535-0540. DOI:10.3969/j.issn.0253-374x.2012.04.006

Statistical Analysis for Rebound Deformation Parameters of Silty Clay at Bottom of Deep Excavation in Shanghai
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                        10.3969/j.issn.0253-374x.2012.04.006
                    
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Abstract:

根据压缩试验的回弹—再压缩曲线，得到了根据回弹指数及孔隙比计算回弹模量的理论公式.通过对大量上海地区相关土层勘察资料的统计分析，得到了上海地区⑤层、⑥层、⑧层粉质黏土回弹指数、压缩指数与塑性指数和比贯入阻力之间的线性关系.由于塑性指数和比贯入阻力不受取样扰动影响，可利用这些统计公式估算回弹指数，并结合上述理论公式进一步求得回弹模量.经多个实例验证，此方法精度可满足工程实践需要，且方便可行.研究结果可用于缺少回弹变形试验参数工程的回弹变形量验算.

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LOU Xiaoming, LI Dening, YANG Min. Statistical Analysis for Rebound Deformation Parameters of Silty Clay at Bottom of Deep Excavation in Shanghai[J].同济大学学报(自然科学版),2012,40(4):0535~0540

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Received:January 24,2011
Revised:December 07,2011
Adopted:November 21,2011
Online: April 27,2012
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