Effects of Relative Density and Structural Properties on Liquefaction Resistance of Nanjing Fine Sand

王炳辉; 刘建达; 陈国兴

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Effects of Relative Density and Structural Properties on Liquefaction Resistance of Nanjing Fine Sand

更新时间：2025-12-11

- Effects of Relative Density and Structural Properties on Liquefaction Resistance of Nanjing Fine Sand
- Issue 4, Pages: 383-388+400(2007)
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  CLC： U441.5
- Published：2007
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[1]王炳辉,刘建达,陈国兴.结构性和相对密度对南京细砂抗液化强度的影响[J].防灾减灾工程学报,2007(04):383-388+400.

王炳辉, 刘建达, 陈国兴. Effects of Relative Density and Structural Properties on Liquefaction Resistance of Nanjing Fine Sand[J]. 2007, (4): 383-388+400.
[1]王炳辉,刘建达,陈国兴.结构性和相对密度对南京细砂抗液化强度的影响[J].防灾减灾工程学报,2007(04):383-388+400. DOI：

王炳辉, 刘建达, 陈国兴. Effects of Relative Density and Structural Properties on Liquefaction Resistance of Nanjing Fine Sand[J]. 2007, (4): 383-388+400. DOI：

摘要

结合南京长江四桥工程场地的液化试验结果

分析了相对密度和结构性对南京细砂抗液化强度的影响:重塑南京细砂的抗液化强度与相对密度具有较好的一一对应性

且随着相对密度增大而增大;结构性的存在使南京细砂原状砂样比重塑砂样具有更高的抗液化强度

但随着循环荷载的减小和振动作用次数的增加

两者的抗液化强度逐渐接近;由于结构性的影响

不同相对密度的原状南京细砂的抗液化强度有可能相同。

Abstract

An experimental study on Nanjing fine sand was performed.The dynamic triaxial test results show that the liquefaction resistance has perfect correlation with the relative density for reconstituted samples.The value of the liquefaction resistance increases with the increase of the value of relative density of sample.The liquefaction resistances of the undisturbed samples are larger than those of reconstituted samples

and this difference will be reduced while the peak value of dynamic load decrease.Due to the existence of natural structural property

Nanjing fine sand samples with different relative densities may have the same liquefaction resistance.

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references

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南京粉质粘土与粉砂互层土及粉细砂的抗液化性能试验研究 [J]. 陈国兴,刘雪珠,庄海洋. 防灾减灾工程学报 . 2003(02)

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