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STUDY ON POTENTIAL AREA OF CHLORIDE INDUCE DETERIORATION FOR SUBWAY CUT AND COVER TUNNEL
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- MUTOU Yoshihiko
- 東京地下鉄(株) 鉄道本部 工務部
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- KONISHI Shinji
- 東京地下鉄(株) 鉄道本部 工務部
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- MOROHASHI Yuji
- 東京地下鉄(株) 鉄道本部 工務部
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- NAKAYAMA Takashi
- （公財）鉄道総合技術研究所
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- USHIDA Takashi
- （公財）鉄道総合技術研究所
Bibliographic Information
- Other Title
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- 地下鉄箱型トンネルの塩害範囲に関する研究
- チカテツ ハコガタ トンネル ノ エンガイ ハンイ ニ カンスル ケンキュウ
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Description
In this study, the area of chloride damage in the cut and cover tunnel was investigated and numerical simulation was carried out with chloride diffusion analysis copuled with ground water. It had been understood that chloride damage was main ploblem in maintenance of subway tunnels have been indicated by last results of our investigation and the area of chloride damage occurs at the limit part nearby chloride water leakage. First, the chloride density of leakage was mesuered. As the results, it is found that the wide of chloride leakage was about 50m from the edge of tidal rivers. Second, numerical simureation is carried out to study time dependence of chloride movement. The result of simuration was good agreement with the insute mesuerement.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. F1 (Tunnel Engineering)
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Journal of Japan Society of Civil Engineers, Ser. F1 (Tunnel Engineering) 70 (3), I_75-I_82, 2015
Japan Society of Civil Engineers