Abstract

Recently, a new runway designated “D-runway” was constructed at Tokyo Haneda Airport. In this project, a large amount of cement treated lightweight soils made from very soft and mildly contaminated dredged clay was used. In this paper, a seawall structure using a cement treated lightweight soil made from dredged clay is introduced and the quality control of these soils in the construction work is discussed. Two types of lightweight soils, “pneumatic mixing cement treated soil” and “air-foam treated lightweight soil,” were used as backfill in the seawall structures. Design and quality control of the lightweight soils were carried out, and the seawall structures were successfully constructed. The shear strength and bulk density of the lightweight soils placed in the sites met the required specifications in design.

Issue Section:
Research Papers
Keywords:
design, reclamation, lightweight soil, quality control

References

1.
Katayama
,
T.
, “
Meeting the Challenge to the Very Soft Ground—The Tokyo International Airport Offshore Expansion Project
,”
Proceedings of the International Conference on Geotechnical Engineering for Coastal Development, GEO-COAST’91
,
Yokohama, Japan
, September 3-6,
Port and Harbour Research Institute
,
Yokosuka, Japan
,
1991
, pp.
954
–
967
.
2.
Report of Construction Method Assessment Committee for the Further Offshore Expansion Project of Haneda Airport,
Ministry of Land, Infrastructure, Transport and Tourism
, Japan, October 23,
2002
, (in Japanese).
3.
Kitazume
,
M.
, and
Satoh
,
T.
, “
Development of Pneumatic Flow Mixing Method and its Application to Central Japan International Airport Construction
,”
Proceedings of the Institution of Civil Engineers: Ground Improvement
, Vol.
7
, No.
3
,
2003
, pp.
139
–
148
. https://doi.org/10.1680/grim.2003.7.3.139
4.
The Lightweight Treated Soil Method,
T.
 
Tsuchida
, and
K.
 
Egashira
, Eds.,
A. A. Balkema
,
Rotterdam, The Netherlands
,
2004
.
5.
Watabe
,
Y.
,
Tsuchida
,
T.
,
Furuno
,
T.
, and
Yuasa
,
H.
, “
Mechanical Characteristics of a Cement Treated Dredged Soil Utilized for Waste Reclamation Landfill
,”
Proceedings of the International Symposium on Coastal Geotechnical Engineering in Practice
, IS-Yokohama 2000,
Yokohama
, September 20-22,
A.A.Balkema
,
Rotterdam, Netherlands
,
2000
, pp.
739
–
745
.
6.
Technical Manual for Pneumatic Mixing Cement Treated Soil (Rev. ed.)
,
A.
 
Asaoka
, Ed.,
Coastal Development Institute of Technology
,
Tokyo, Japan
,
2008
, pp.
16
–
20
(in Japanese).
7.
Watabe
,
Y.
,
Saegusa
,
H.
,
Ueda
,
T.
,
Shiina
,
T.
,
Shiraishi
,
Y.
, and
Murakami
,
T.
, “
Characteristics and Countermeasures for the Deterioration of Air-Foam Treated Lightweight Soil
,”
Jpn Geotech. J.
, Vol.
2
, No.
4
,
2007
, pp.
311
–
318
(in Japanese).
8.
Watabe
,
Y.
,
Itou
,
Y.
,
Kang
,
M.-S.
, and
Tsuchida
,
T.
, “
One-Dimensional Compression of Air-Foam Treated Lightweight Geo-Material in Microscopic Point Of View
,”
Soils Found.
, Vol.
44
, No.
6
,
2004
, pp.
53
–
67
. https://doi.org/10.3208/sandf.44.6_53
Google Scholar
Crossref
Search ADS
 
9.
Nagatome
,
T.
,
Hashimoto
,
T.
,
Otani
,
J.
, and
Kikuchi
,
Y.
, “
Absorption Property Evaluation of Light Weight Soil with Air Foam Due to Different Mixing Conditions
,”
J. Soc. Mater. Sci., Jpn.
, Vol.
59
, No.
1
,
2010
, pp.
68
–
73
(in Japanese). https://doi.org/10.2472/jsms.59.68
Google Scholar
Crossref
Search ADS
 
10.
Technical Manual for Air-Foam Treated Lightweight Soil (rev. ed.)
,
T.
 
Tsuchida
, Ed.,
Coastal Development Institute of Technology
,
Tokyo, Japan
,
2008
, pp.
15
–
21
(in Japanese).
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