Characters of schistose structure of Nanjing's sand and seismic liquefaction of subsoil of a metro section

CHEN Wen-hua; SUN Mou; LIU Ming-li; HU Xin-peng; ZEN Geng-ping

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Characters of schistose structure of Nanjing's sand and seismic liquefaction of subsoil of a metro section

更新时间：2026-06-25

- Characters of schistose structure of Nanjing's sand and seismic liquefaction of subsoil of a metro section
- Vol. 24, Issue 5, (2003)
- 作者机构：
  
  1. 北方交通大学土建学院,北京,100044
  2. 中铁隧道集团一处有限公司,河南,新乡,453000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TV223
- Online First：19 August 2014，
  
  Published：2003
- 稿件说明：
移动端阅览
CHEN Wen-hua, SUN Mou, LIU Ming-li, et al. Characters of schistose structure of Nanjing's sand and seismic liquefaction of subsoil of a metro section[J]. 2003, 24(5).
DOI：

CHEN Wen-hua, SUN Mou, LIU Ming-li, et al. Characters of schistose structure of Nanjing's sand and seismic liquefaction of subsoil of a metro section[J]. 2003, 24(5). DOI：

摘要

与圆颗粒的标准砂相比较，片状结构的砂的动力特性更为复杂，用规范法进行液化判别时会误判。为了将砂土片状结构特性考虑到判别过程中，建议了一个更为合理的Ncr 的经验公式，并利用该公式对南京地铁玄武门-南京站区间的砂土层进行液化判别，该区间会发生中等程度为主的液化，最后，将液化判别结果与规范法和室内动力实验结果相比较，分析发现，在南京地铁进行液化判别时，必须考虑片状结构特性对于液化影响；同时，给出了平均液化势随深度的变化情况，以及考虑砂土结构特性对判别结果的影响系数随土层深度的关系，提高了判别的精度。

Abstract

Some dynamical characters and seismic liquefaction of schistose grain sand are very complex and different to that of the round grain sand; We may reduce the degree of liquefaction if by using the method of code without considering the characters of schistose structure. A new empirical formula of Ncr is suggested to evaluate the seismic liquefaction of subsoil of a metro with considering the schistose structure of Nanjing's sand. According this new method the index of liquefaction of subsoil of a metro section from Xuanwumen station to Nanjing station is middle degree

The distribution of affect-coefficient and index of liquefaction are also described with depth. It is important to take care of the schistose structures to analyze the seismic liquefaction in Nanjing; this result is testified to be correct by dynamical test; the research can improve the accuracy of evaluation.

关键词

Keywords

references

Views

1393

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental study on shear characteristics of mudstone under combined action of stress-dry-wet cycles

Nonlinear mechanical response of surrounding rock in compressed air energy storage cavern based on Hoek-Brown criterion

Progressive fracture evolution and mechanical response of cavity-containing sandstone under low-frequency disturbance

Experimental study on the definition and evolution characteristics of unfrozen water retention states in frozen clay

Investigation on thickness selection method of sealing steel plate for CAES gas storage caverns

Related Author

No data

Related Institution

No data

AI问答

⁰