Abstract
An evaluation method that can express the local leakage of leachate from joint sections in steel pipe sheet pile (SPSP) cutoff walls is discussed in this study. In particular, the evaluation of environmental feasibility (containment of leachates containing toxic substances) considering a three-dimensional arrangement and hydraulic conductivity distribution of the joint sections in the SPSP cutoff wall is compared with an evaluation that uses the equivalent hydraulic conductivity. This equivalent hydraulic conductivity assumes that the joint section and the steel pipe are integrated; therefore, the hydraulic conductivity is substituted with a uniform permeable layer. However, in an evaluation that employs the equivalent hydraulic conductivity, it is difficult to consider the local leakage of leachate containing toxic substances from the joint sections in the SPSP cutoff wall. It was established that evaluations of the environmental feasibility of SPSP cutoff walls with joint sections must take into account the local leakage of leachates containing toxic substances from the joint sections. Also, it was clarified that technologies that lower the hydraulic conductivities of joint sections in SPSP cutoff walls and also facilitate the use of sparser joint arrangements contribute significantly to increasing the environmental feasibility of SPSP cutoff walls at landfill sites.
| Original language | English |
|---|---|
| Pages (from-to) | 55-64 |
| Number of pages | 10 |
| Journal | Journal of Material Cycles and Waste Management |
| Volume | 11 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 Jan |
| Externally published | Yes |
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Keywords
- Coastal landfill site
- Environmental feasibility
- Local leakage of leachate
- Steel pipe sheet pile
- Vertical cutoff barrier
ASJC Scopus subject areas
- Waste Management and Disposal
- Mechanics of Materials
Cite this
Evaluation of environmental feasibility of steel pipe sheet pile cutoff wall at coastal landfill sites. / Inazumi, Shinya; Ohtsu, Hiroyasu; Otake, Yu; Kimura, Makoto; Kamon, Masashi.
In: Journal of Material Cycles and Waste Management, Vol. 11, No. 1, 01.2009, p. 55-64.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of environmental feasibility of steel pipe sheet pile cutoff wall at coastal landfill sites
AU - Inazumi, Shinya
AU - Ohtsu, Hiroyasu
AU - Otake, Yu
AU - Kimura, Makoto
AU - Kamon, Masashi
PY - 2009/1
Y1 - 2009/1
N2 - An evaluation method that can express the local leakage of leachate from joint sections in steel pipe sheet pile (SPSP) cutoff walls is discussed in this study. In particular, the evaluation of environmental feasibility (containment of leachates containing toxic substances) considering a three-dimensional arrangement and hydraulic conductivity distribution of the joint sections in the SPSP cutoff wall is compared with an evaluation that uses the equivalent hydraulic conductivity. This equivalent hydraulic conductivity assumes that the joint section and the steel pipe are integrated; therefore, the hydraulic conductivity is substituted with a uniform permeable layer. However, in an evaluation that employs the equivalent hydraulic conductivity, it is difficult to consider the local leakage of leachate containing toxic substances from the joint sections in the SPSP cutoff wall. It was established that evaluations of the environmental feasibility of SPSP cutoff walls with joint sections must take into account the local leakage of leachates containing toxic substances from the joint sections. Also, it was clarified that technologies that lower the hydraulic conductivities of joint sections in SPSP cutoff walls and also facilitate the use of sparser joint arrangements contribute significantly to increasing the environmental feasibility of SPSP cutoff walls at landfill sites.
AB - An evaluation method that can express the local leakage of leachate from joint sections in steel pipe sheet pile (SPSP) cutoff walls is discussed in this study. In particular, the evaluation of environmental feasibility (containment of leachates containing toxic substances) considering a three-dimensional arrangement and hydraulic conductivity distribution of the joint sections in the SPSP cutoff wall is compared with an evaluation that uses the equivalent hydraulic conductivity. This equivalent hydraulic conductivity assumes that the joint section and the steel pipe are integrated; therefore, the hydraulic conductivity is substituted with a uniform permeable layer. However, in an evaluation that employs the equivalent hydraulic conductivity, it is difficult to consider the local leakage of leachate containing toxic substances from the joint sections in the SPSP cutoff wall. It was established that evaluations of the environmental feasibility of SPSP cutoff walls with joint sections must take into account the local leakage of leachates containing toxic substances from the joint sections. Also, it was clarified that technologies that lower the hydraulic conductivities of joint sections in SPSP cutoff walls and also facilitate the use of sparser joint arrangements contribute significantly to increasing the environmental feasibility of SPSP cutoff walls at landfill sites.
KW - Coastal landfill site
KW - Environmental feasibility
KW - Local leakage of leachate
KW - Steel pipe sheet pile
KW - Vertical cutoff barrier
UR - http://www.scopus.com/inward/record.url?scp=60349087280&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=60349087280&partnerID=8YFLogxK
U2 - 10.1007/s10163-008-0219-z
DO - 10.1007/s10163-008-0219-z
M3 - Article
VL - 11
SP - 55
EP - 64
JO - Journal of Material Cycles and Waste Management
JF - Journal of Material Cycles and Waste Management
SN - 1438-4957
IS - 1
ER -