Geoscience Reference
In-Depth Information
Fig. 15.51. Appearance of excavated screen pipe after liquefaction tests
(Harada et al.,2006)
5. Conclusion
One of the most important topics in liquefaction problem is the mitigation for existing
structures. It is certainly essential to achieve reasonably low cost for this. In this regard,
the present text reviewed three kinds of possibilities which were namely densification,
grouting, and drainage. It was shown that there are promising technical developments in
this field. It should be borne in mind that detailed soil-mechanic knowledge would help
technical development efficiently.
Acknowledgements
The experiments described in this text were conducted by the following people:
Mr. N. Harada of Zenitaka Corporation, Mr. Y. Kabashima who was an undergradu-
ate student at University of Tokyo, Mr. T. Wassan, a former master student, Miss Seda
Sendir, a graduate student, and Miss C. Conlee, a graduate student of Drexel University
onNSFSummerInternshipinTokyo.CollaborationwithToaCorporation,Dr.S.Tsujino
of Sato Kogyo Corporation, and Dr. S. Shimada of Kyokado Engineering Co., LTD. is
deeply acknowledged by theauthor.
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