Experimental study of remediation measures of anchored sheet pile quay walls using soil compaction

The seismic performance of quay walls was determined to be highly dependent on liquefaction. The dynamic response of anchored sheet pile quay walls that are embedded in liquefaction-susceptible soil was investigated using shaking table modeling. Extensive damage to the retaining system was attributed to the soil liquefaction near the embedded section. The lateral displacements of the walls due to liquefaction were accompanied by large seaward displacements of anchors; they consequently reduced the tensile forces of the tie rods. A remediation method that involves the compaction of weak areas was experimentally evaluated. The effectiveness of the soil improvement in zones adjacent to the embedded section and/or the area in front of the anchors was assessed based on recorded dynamic responses. The implemented countermeasures considerably reduced the deformations of the wall and the anchors. The foundation improvements influenced the failure mode. Densification in front of the anchors limited the seaward displacements of the anchors, which increased the tensile forces in the tie rods.

[1]  Mandar M. Dewoolkar,et al.  Experimental developments for studying static and seismic behavior of retaining walls with liquefiable backfills , 2000 .

[2]  Ahmed Elgamal,et al.  Seismic response of adjacent dense and loose saturated sand columns , 2002 .

[3]  Spg Madabhushi,et al.  Centrifuge modelling of the use of densification as a liquefaction resistance measure for bridge foundations , 2004 .

[4]  Braja M. Das,et al.  Principles of Foundation Engineering , 1984 .

[5]  Abbas Ghalandarzadeh,et al.  Static and dynamic behavior of hunchbacked gravity quay walls , 2008 .

[6]  A. Krishna,et al.  Liquefaction Mitigation of Sand Deposits by Granular Piles- an Overview , 2008 .

[7]  Sanjeev Kumar.  Reducing liquefaction potential using dynamic compaction and construction of stone columns , 2001 .

[8]  G. Gazetas,et al.  Insight into seismic earth and water pressures against caisson quay walls , 2008 .

[9]  Susumu Iai,et al.  SIMILITUDE FOR SHAKING TABLE TESTS ON SOIL-STRUCTURE-FLUID MODEL IN 1g GRAVITATIONAL FIELD , 1989 .

[10]  Ikuo Towhata,et al.  Shaking table tests on seismic deformation of gravity quay-walls , 1998 .

[11]  Ikuo Towhata,et al.  Shaking Table Model Tests on Pile Groups behind Quay Walls Subjected to Lateral Spreading , 2010 .

[12]  R. D. Andrus,et al.  Ground improvement techniques for liquefaction remediation near existing lifelines , 1995 .

[13]  Takahiro Sugano,et al.  Seismic Design Guidelines For Port Structures , 2001 .

[14]  Ikuo Towhata,et al.  Studying the effects of deformable panels on seismic displacement of gravity quay walls , 2009 .

[15]  M. Baziar,et al.  A laboratory study on the pore pressure generation model for Firouzkooh silty sands using hollow torsional test , 2011 .

[16]  Susumu Iai,et al.  REMEDIATION OF LIQUEFIABLE SOILS FOR PORT STRUCTURES IN JAPAN—ANALYSIS, DESIGN AND PERFORMANCE , 2005 .

[17]  Stephen E. Dickenson,et al.  Estimation of Seismically Induced Lateral Deformations for Anchored Sheetpile Bulkheads , 1998 .

[18]  edited by Hans F. Winterkorn Hsai-Yang Fang.  Foundation Engineering Handbook , 2017 .

[19]  Thomas F. Zimmie,et al.  Earthquake retrofit of highway/railway embankments by sheet-pile walls , 2004 .

[20]  E. Hausler,et al.  Performance of Soil Improvement Techniques in Earthquakes , 2001 .

[21]  Ross W. Boulanger,et al.  ASPECTS OF COMPACTION GROUTING OF LIQUEFIABLE SOIL , 1995 .

[22]  S. Kramer.  Geotechnical Earthquake Engineering , 1996 .