Investigation of sand columns effect on stability of railway embankments overlaid on liquefiable foundations

被引：2

作者：

Tabatabaei, S. Amir ^{[1
]}

Sadeghi, Javad ^{[1
]}

Esmaeili, Morteza ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Sch Railway Engn, Tehran, Iran

来源：

JOURNAL OF EARTHQUAKE ENGINEERING | 2020年 / 24卷 / 05期

关键词：

Railway Embankment; Liquefaction; Sand Columns; Soil Improvement; Numerical Fe Analyses; NUMERICAL-ANALYSIS; SEISMIC RESPONSE; EARTH EMBANKMENT; DYNAMIC-BEHAVIOR; CYCLIC MOBILITY; LIQUEFACTION; DEFORMATION; MITIGATION; DEPOSITS;

D O I：

10.1080/13632469.2018.1453408

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

One of the most important concerns of railway industries is the loss of overall stability and permanent settlements of railway embankments (overlaid on liquefiable foundations) during earthquake. The effectiveness of sand columns in the improvement of stability and strength of the embankments was studied in this research. The embankments behavior during earthquakes in different heights, various sand columns area replacement ratios (Arr), various foundation permeability and different earthquake peak ground acceleration (PGA) were investigated in parametric analyses of a numerical model developed and validated here. The applicability and effectiveness of the obtained results in practice were illustrated.

引用

页码：845 / 868

页数：24

共 11 条

[1] Investigation of the Optimum Height of Railway Embankments during Earthquake Based on Their Stability in Liquefaction
Tabatabaei, S. Amir
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JOURNAL OF EARTHQUAKE ENGINEERING, 2019, 23 (05) : 882 - 908
[2] Earthworks in Modern Railway and Road Construction - 4. Foundations of Embankments. Problems of Stability.
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[8] PRELIMINARY INVESTIGATION OF NUTRIENT ENRICHMENT IN EXPERIMENTAL SAND COLUMNS AND ITS EFFECT ON TROPICAL INTER-TIDAL BACTERIA AND MEIOFAUNA
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[9] An investigation of the effect of stratification stability and saltation sand flux on the anisotropy of atmospheric surface layer wall turbulence
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[10] Effect of surface retaining elements on rock stability: laboratory investigation with sand powder 3D printing
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