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鉄道構造物の戦略的維持管理計画の策定

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U.D.C 69.059.1

㕲㐨ᵓ㐀≀ࡢᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃ



ఀ⸨ ṇ᠇㸨㕥ᮌ ᑗ඘㸨



せ ⣙㸸  ᮏሗࡣ㸪㛗ᮇ౪⏝ࡉࢀ࡚࠸ࡿ RC ᵓ㐀≀࡛࠶ࡿ㕲㐨㧗ᯫᶫࢆᑐ㇟࡜ࡋ࡚㸪ྛ✀ࡢ᮲௳ࢆタᐃࡋ㏻ᖖ඲⯡᳨ᰝ㈝㸪⿵ಟ㈝ࢆྵࡵ ࡓ⥔ᣢ⟶⌮࡟㛵ࢃࡿ 200 ᖺ㛫ࡢ⥲㈝⏝㸦ࡇࡇ࡛ࡣ㸪ึᮇᘓタ㈝ࢆྵࡲ࡞࠸㈝⏝ࢆࣛ࢖ࣇࢧ࢖ࢡࣝࢥࢫࢺ(LCC)࡜ࡋࡓ㸧ࢆヨ⟬ࡋ ࡓࡶࡢ࡛࠶ࡿࠋLCC ࡢ⟬ᐃ࡟㝿ࡋ࡚ࡣ㸪ᵓ㐀≀࡜ࡋ࡚ᶵ⬟ࢆⓎ᥹࡛ࡁ࡞ࡃ࡞ࡿ⤊ᒁࡢ㝈⏺≧ែࢆ⪃៖ࡋ࡚⥔ᣢ⟶⌮㝈⏺≧ែࢆ タᐃࡋ㸪ྜࢃࡏ࡚⌧≧ࡢຎ໬ࡢ⛬ᗘ࡜ࡋ࡚Ⅼ᳨ㄪᰝ⤖ᯝࢆࡲ࡜ࡵࡓࢹ࣮ࢱ࣮࣋ࢫࢆά⏝ࡋ࡚ᑐ⟇ࡢඃඛ㡰఩ࢆỴᐃࡋ࡚㸪ྛ✀ ࡢ⥔ᣢ⟶⌮ࢩࢼࣜ࢜࡟ศࡅ࡚⟬ᐃ㸪ẚ㍑᳨ウࡋࡓࡶࡢ࡛࠶ࡿࠋ᳨ウࡢ⤖ᯝ㸪୍⯡ⓗ࡟ゝࢃࢀ࡚࠸ࡿண㜵ಖ඲ᆺࡢࢩࢼࣜ࢜ࡀ᭱ ࡶ㈝⏝ᑐຠᯝ࡟ඃࢀ࡚࠸ࡓࡀ㸪≉࡟㸪ᮏሗࡣᑐ⟇ࡀᚲせ࡞ලయⓗ࡞᫬ᮇ࡜ᚲせ࡞ᕤ஦㈝➼ࡶྵࡵ࡚ LCC ࢆ⟬ᐃࡋ㸪ࡼࡾ⌧ᐇⓗ ࡞஦ᴗ㈝⏝ࡢ⟬ฟ࡟ᇶ࡙࠸ࡓᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃࡢ୍౛ࢆ♧ࡋࡓࡶࡢ࡛࠶ࡿࠋ 㺕㺎㺺㺎㺢㺼㸸  ᡓ␎ⓗ⥔ᣢ⟶⌮㸪㛗ᑑ࿨໬㸪⥔ᣢ⟶⌮㝈⏺≧ែ㸪ࣛ࢖ࣇࢧ࢖ࢡࣝࢥࢫࢺ㸪⥔ᣢ⟶⌮ࢩࢼࣜ࢜ ┠ ḟ㸸  㸬ࡣࡌࡵ࡟                      㸬/&& ࡢ⟬ᐃ      㸬᳨ウᴫせ       㸬ᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃ      㸬/&& ⟬ᐃ᮲௳ࡢタᐃ      㸬࠾ࢃࡾ࡟  ࡣࡌࡵ࡟ ᖹᡂ 24 ᖺ 12 ᭶࡟Ⓨ⏕ࡋࡓ୰ኸ⮬ື㌴㐨➲Ꮚࢺࣥ ࢿࣝኳ஭ᯈⴠୗ஦ᨾ࡟ࡼࡾ㸪࢖ࣥࣇࣛࡢ⪁ᮙ໬ࡀ῝ ้࡞ၥ㢟࡛࠶ࡿࡇ࡜ࡀ෌ㄆ㆑ࡉࢀࡓࠋࡲࡓ㸪ᅜᅵ஺ ㏻┬࡛ࡣ㸪ᖹᡂ 25 ᖺ 11 ᭶࡟ᅜẸ⏕άࡸ࠶ࡽࡺࡿ♫ ఍⤒῭άືࢆᨭ࠼ࡿྛ✀᪋タࢆ࢖ࣥࣇࣛ࡜ࡋ࡚ᖜᗈ ࡃᑐ㇟࡜ࡋࡓᡓ␎ⓗ࡞⥔ᣢ⟶⌮࣭᭦᪂➼ࡢ᪉ྥᛶࢆ ♧ࡍᇶᮏⓗ࡞ィ⏬࡜ࡋ࡚㸪ࠕ࢖ࣥࣇࣛ㛗ᑑ࿨໬ᇶᮏ ィ⏬㸦௨ୗࠕᇶᮏィ⏬ࠖ࡜࠸࠺ࠋ㸧ࠖࢆ࡜ࡾࡲ࡜ࡵࡓࠋ ᅜᅵ஺㏻┬ࡣ㸪ࡇࡢᇶᮏィ⏬࡟ᇶ࡙ࡁᖹᡂ 26 ᖺ 5 ᭶㸪 ࠶ࡽࡺࡿ࢖ࣥࣇࣛࡢ⥔ᣢ⟶⌮࣭᭦᪂➼ࢆ╔ᐇ࡟᥎㐍 ࡍࡿࡓࡵࡢ୰㛗ᮇⓗ࡞ྲྀ⤌ࡢ᪉ྥᛶࢆ᫂ࡽ࠿࡟ࡋࡓ ࠕᅜᅵ஺㏻┬࢖ࣥࣇࣛ㛗ᑑ࿨໬ィ⏬㸦௨ୗࠕ⾜ືィ ⏬ࠖ࡜࠸࠺ࠋ㸧ࠖࢆ⟇ᐃࡋࡓࠋ௒ᚋࡣ㸪ࡇࡢ⾜ືィ⏬ ࡟ᇶ࡙ࡁ㸪᪂タ࠿ࡽ᧔ཤࡲ࡛ࡢ㸪࠸ࢃࡺࡿࣛ࢖ࣇࢧ ࢖ࢡࣝࡢᘏ㛗ࡢࡓࡵࡢᑐ⟇࡜࠸࠺⊃⩏ࡢ㛗ᑑ࿨໬ࡢ ྲྀࡾ⤌ࡳ࡟␃ࡲࡽࡎ㸪᭦᪂ࢆྵࡵ㸪ᑗ᮶࡟ࢃࡓࡗ࡚ ᚲせ࡞࢖ࣥࣇࣛࡢᶵ⬟ࢆⓎ᥹ࡋ⥆ࡅࡿࡓࡵࡢྲྀࡾ⤌ ࡳࢆᐇ⾜ࡍࡿࡇ࡜࡛㸪ࡇࢀࡲ࡛㐍ࡵ࡚ࡁࡓ࣓ࣥࢸࢼ ࣥࢫࢧ࢖ࢡࣝࡢᵓ⠏࡜⥅⥆ⓗ࡞Ⓨᒎ࡟ࡘ࡞ࡆࡿ࡜ࡋ ࡚࠸ࡿ 1)ࠋ࡞࠾㸪⾜ືィ⏬࡟♧ࡉࢀ࡚࠸ࡿィ⏬ᮇ㛫 ࡣ㸪ᖹᡂ 26 ᖺᗘ࠿ࡽᖹᡂ 32 ᖺᗘࡲ࡛࡜࡞ࡗ࡚࠸ࡿࠋ ࡇࡢࡼ࠺࡞♫఍᝟ໃࡢ୰㸪ᙜ♫࡛ࡣ㸪ᅜᅵ஺㏻┬ ࡢ⾜ືィ⏬࡟ඛ❧ࡕ㸪㤳㒔ᅪෆࡢ㕲㐨఍♫࡜㐃ᦠࡋ㸪 ⟶⌮㸪ᡤ⟶ࡍࡿ㧗ᯫᶫ࡞࡝ࡢ࢖ࣥࣇࣛࡢ㛗ᑑ࿨໬ィ ⏬ࡢసᡂᴗົ࡟ྲྀࡾ⤌ࢇ࡛࠸ࡿࠋ ᮏሗࡣ㸪ࡑࡢ୰࡛㛗ᮇ౪⏝ࡉࢀ࡚࠸ࡿ RC ᵓ㐀≀ ࡛࠶ࡿ㧗ᯫᶫࢆᑐ㇟࡜ࡋ㸪ྛ✀ࡢ᮲௳ࢆタᐃࡋ㏻ᖖ   ඲⯡᳨ᰝ㈝㸪⿵ಟ㈝ࢆྵࡵࡓ⥔ᣢ⟶⌮࡟㛵ࢃࡿ 200 ᖺ㛫ࡢ⥲㈝⏝(LCC)ࢆヨ⟬ࡋ࡚⟇ᐃࡋࡓᡓ␎ⓗ࡞⥔ ᣢ⟶⌮ィ⏬࡟ࡘ࠸࡚ࡢሗ࿌࡛࠶ࡿࠋ   ᳨ウᴫせ ᅗ 1 ࡟ LCC ࡢ⟬ᐃࡢᴫせࢆ♧ࡍࠋ࡞࠾㸪ࡇࡇ࡛ࡢ LCCࡣ㸪⪏㟈⿵ᙉ㈝⏝ࡣྵࡲ࡞࠸᮲௳࡛⟬ᐃࡋࡓࠋ 㸺⥔ᣢ⟶⌮᪉㔪㸪ຎ໬ᶵᵓ㸪㝈⏺≧ែࡢタᐃ㸼  ۃ 㸺ࢩࢼࣜ࢜㸪ᮇᚅ⪏⏝ᖺᩘࡢタᐃ㸼  ۃ 㸺/&& ⟬ฟ㸼 ᅗ 㻝 LCC ࡢᴫせ ண㜵ᑐ⟇㻌 ᪩ᮇᑐ⟇㻌 ᭦᪂ᑐ⟇ ೺඲ᗘ㻌 ᖺᩘ㻌 ⥔ᣢ⟶⌮㝈⏺≧ែ䊻㻌 ⤊ᒁ㝈⏺≧ែ䊻㻌 ᖺᩘ㻌 ೺඲ᗘ㻌 ⟶⌮Ỉ‽㻔㻭㻕㻌 ୰ᛶ໬ṧ䜚 㻝㻜㼙㼙䊻㻌 ⟶⌮Ỉ‽㻔㻮㻕㻌 ୰ᛶ໬ṧ䜚 㻜㼙㼙䊻㻌 ᭦᪂ᑐ⟇㻌 㻌 㻸㻯㻯㻌 ᖺᩘ㻌 㻸㻯㻯㻔᭦᪂㻕 㻸㻯㻯㻔㻮㻕㻌 㻸㻯㻯㻔㻭㻕㻌 ᢏ⾡◊✲ᡤ ᅵᮌ◊✲ࢢ࣮ࣝࣉ * 技術研究所 土木研究グループ U.D.C 69.059.1

鉄道構造物の戦略的維持管理計画の策定

伊藤 正憲

 鈴木 将充

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ۃ ۃ ۃ ۃ ᅗ 㻞 ᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃࣇ࣮ࣟ   /&& ⟬ᐃࣇ࣮ࣟ ᅗ 2 ࡟♧ࡍ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃࡣ㸪(1)ᘏ࿨໬ࡢ┠ ⓗࡢ᫂☜໬㸪(2)㐣ཤࡢ୰ᛶ໬ ᐃࢹ࣮ࢱࡢ☜ㄆ࣭ᩚ ⌮㸪(3)᪤ᑐ⟇㒊ศࡢ☜ㄆ࣭ᩚ⌮㸪(4)ᘏ࿨໬ᑐ⟇ࡢ㑅 ᐃ㸪(5)⥔ᣢ⟶⌮ィ⏬❧᱌࡜࠸࠺ὶࢀ࡛⾜ࡗࡓࠋ࡞࠾㸪 LCC ࢆ⟬ᐃࡍࡿᇶᮏ᝟ሗ࡜ࡋ࡚㸪ࡇࢀࡲ࡛᥇ྲྀࡋࡓ ᵓ㐀≀ࡢㄪᰝࢹ࣮ࢱ㸪࠾ࡼࡧኚ≧࡞࡝ࡢ≧ែࢆ෗┿ ࡞࡝࡜ࡋ࡚⵳✚ࡋࡓࢹ࣮ࢱ࣮࣋ࢫ(FMot-DB)ࢆά⏝ ࡍࡿࡇ࡜ࢆ᮲௳࡜ࡋ㸪ᮇᚅ⪏⏝ᖺᩘࡢタᐃ㸪ᑐ㇟࡜ ࡍࡿຎ໬ᶵᵓࡢ᳨ウ㸪㝈⏺≧ែࡢタᐃ㸪ᘓタᖺ௦ࡢ ศ㢮㸪⥔ᣢ⟶⌮ࢩࢼࣜ࢜ࡢタᐃ࡞࡝ࢆ⾜ࡗࡓ࠺࠼࡛ LCCࢆ⟬ᐃࡋࡓࠋ   /&& ⟬ᐃ᮲௳ࡢタᐃ  ᮇᚅ⪏⏝ᖺᩘࡢタᐃ RCᵓ㐀≀ࡢ⥔ᣢ⟶⌮ࡢ᪉ἲࡣ㸪ᅵᮌᏛ఍ࢥࣥࢡࣜ ࣮ࢺᶆ‽♧᪉᭩࠙⥔ᣢ⟶⌮⦅ࠚ㸦௨ୗ㸪RC ♧᪉᭩࡜ ␎グ㸧2),3)ࡀᇶᮏ࡜࡞ࡿࠋࡇࢀ࡟ࡼࡿ࡜ᵓ㐀≀ࡢᮇᚅ ⪏⏝ᖺᩘࡣ㸪ᵓ㐀≀ࡢ⥔ᣢ⟶⌮⪅㸦ᡤ᭷⪅㸧ࡀタᐃ ࡍࡿࡇ࡜࡟࡞ࡗ࡚࠾ࡾ㸪᭱㏆ࡢᵓ㐀≀ࡢタィ࡛ࡣ 100ᖺ࡜ࡋ࡚࠸ࡿሙྜࡀከ࠸ࡀ㸪ᐇ㝿࡟ࡣ 100 ᖺ௨ୖ ౪⏝ࡉࢀ࡚࠸ࡿᵓ㐀≀ࡶከᩘᏑᅾࡍࡿࠋ୍᪉㸪ᑐ㇟ ࡜ࡋࡓ RC ᵓ㐀≀࡟ࡶᩘᖺ๓࡟❹ᕤࡋࡓᵓ㐀≀࠿ࡽ ᪤࡟ 80 ᖺ௨ୖ౪⏝ࡉࢀ࡚࠸ࡿࡶࡢࡲ࡛࠶ࡾ㸪୰࡟ࡣ ୍⯡ⓗ࡞ᮇᚅ⪏⏝ᖺᩘ࡛࠶ࡿ 100 ᖺ࡟㏆࠸ࡶࡢࡶ࠶ ࡿࠋ౛࠼ࡤ㸪80 ᖺ௨ୖ౪⏝ࡉࢀ࡚࠸ࡿ㧗ᯫᶫ࡞࡝ࡣ㸪 ⿵ಟࢆࡏࡎ࡟ᨺ⨨ࡋࡓሙྜ࡟ᵓ㐀ᛶ⬟ࡢపୗࡀண  ࡉࢀࡓࡓࡵ㸪ᩘ༑ᖺ๓࠿ࡽィ⏬ࡋ㸪㏆ᖺ㸪኱᥃࠿ࡾ ࡞ᕤ஦࡟ࡼࡾᨵಟࡉࢀ࡚࠸ࡿࡶࡢࡶ࠶ࡾ㸪ࡲࡓ㸪ẚ ㍑ⓗᗈ⠊ᅖ࡟⿵ಟࡉࢀࡓ㧗ᯫᶫࡶ࠶ࡿࠋࡑࡇ࡛㸪ࡇ ࢀࡽ඲࡚ࢆᑐ㇟࡜ࡋࡓሙྜ࡟ࡣ㸪ຎ໬⛬ᗘࡢ㐪࠸ࡔ ࡅ࡛࡞ࡃ㸪ᢏ⾡ࡢኚ㑄ࢆ⪃៖ࡋ࡚❹ᕤ᫬ᮇࢆศࡅ࡚ LCC ࢆ⟬ᐃࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼㸪ᐇ⦼ⓗ࡟ᨵಟ࡟ ⮳ࡗࡓᮇ㛫࡛࠶ࡿ 80 ᖺࢆෆໟࡋ㸪࠿ࡘᩘᅇࡢᑐ⟇ࡢ ⧞ࡾ㏉ࡋࡀ᝿ᐃ࡛ࡁࡿ 200 ᖺࢆᮇᚅ⪏⏝ᖺᩘ࡜ࡋࡓࠋ  ຎ໬ᶵᵓࡢタᐃ  ᑐ㇟࡜ࡋࡓᵓ㐀≀ࡣ㸪RC ᵓ㐀≀࡛࠶ࡿ㕲㐨㧗ᯫᶫ ࡛࠶ࡾ㸪⥔ᣢ⟶⌮᪉ἲࡸᑐ⟇ࡀ␗࡞ࡿᒣᓅࢺࣥࢿࣝ㸪 ࢩ࣮ࣝࢻࢺࣥࢿࣝࡣᑐ㇟እ࡜ࡋࡓࠋ⥔ᣢ⟶⌮᪉㔪ࡣ㸪 RCᵓ㐀≀ࡢ㛗ᑑ࿨໬㸻୰ᛶ໬ᑐ⟇ࢆᇶᮏ࡜ࡋ㸪ᵓ㐀 ≀ࡢ㒊఩ẖࡢせồᛶ⬟࡟ᛂࡌ࡚୰ᛶ໬ᢚไᑐ⟇㸪ࡶ ࡋࡃࡣ㸪⪏๤㞳๤ⴠᑐ⟇ࢆ᪋ࡍࡇ࡜࡜ࡋࡓࠋᪧ RC ♧᪉᭩2)࡛ࡣ㸪RC ᵓ㐀≀࡟࠾࠸࡚୰ᛶ໬࡟ࡼࡿຎ໬ ࡢ㐍ᒎࡢࡳ࡛ࡣᵓ㐀≀᧔ཤ㸪෌ᵓ⠏࡟⮳ࡿࡇ࡜ࡣ᝿ ᐃࡋ࡚࠸࡞࠿ࡗࡓࠋࡋ࠿ࡋ㸪2013 ᖺ࡟ᨵゞࡉࢀࡓ RC ♧᪉᭩ 3)࡛ࡣ㸪ࠕゎయ࣭᧔ཤࠖࡢ⪃࠼᪉ࡀሙྜ࡟ ࡼࡗ࡚ࡣ⪃࠼ࡽࢀࡿᑐ⟇࡜ࡋ࡚ᑟධࡉࢀࡓࠋࡋ࠿ࡋ㸪 ලయⓗ࡞ᑐ⟇࡜ࡋ࡚ࡣ⪏ຊࡢᅇ᚟ࢆ┠ⓗ࡜ࡋ࡚ᕳ❧ ࡚ࡸቑཌᕤἲࡀグ㍕ࡉࢀ࡚࠸ࡿࡀ㸪ሷ໬≀࢖࢜ࣥ⃰ ᗘࡀ㧗࠸࡜ࡢ᮲௳ࡀ௜グࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛㸪ࡇࡇ ࡛ᑐ㇟࡜ࡋࡓ㧗ᯫᶫ࡛ࡣሷᐖࡢᙳ㡪ࡀ࡞࠸ࡓࡵ㸪୰ ᛶ໬ຎ໬ࡢ㐍ᒎࡢࡳ࡜ࡋࠕゎయ࣭᧔ཤࠖࡣ᝿ᐃࡋ࡞ ࠸ࡇ࡜ࢆཎ๎࡜ࡋࡓࠋ ௨ୖ㸪RC ᵓ㐀≀࡟᭱ࡶᙳ㡪ࢆཬࡰࡍຎ໬ᶵᵓࡣ୰ ᛶ໬࡛࠶ࡿ࡜ࡋ㸪ࡇࢀࢆ LCC ⟬ᐃࡢຎ໬ᶵᵓ࡜タᐃ ࡋࡓࠋ  ⥔ᣢ⟶⌮㝈⏺≧ែࡢタᐃ RCᵓ㐀≀࡟࠾࠸࡚୰ᛶ໬ࡀ㐍ᒎࡋࡓሙྜ㸪Ỉศࡢ ౪⤥࡟ࡼࡾෆ㒊ࡢ㕲➽ࡀ⭉㣗⭾ᙇࡍࡿࡇ࡜࡛㸪ࡦࡧ ๭ࢀࡀⓎ⏕ࡋ㸪⤊ᒁⓗ࡟ࡣ࠿ࡪࡾࢥࣥࢡ࣮ࣜࢺࡀ๤ 㞳๤ⴠࡋ࡚⪏ຊࡀపୗࡋᵓ㐀ᛶ⬟ࡀᦆ࡞ࢃࢀࡿࡇ࡜ ࡟࡞ࡿࠋࡑࡢࡓࡵ୰ᛶ໬ࢆཷࡅࡿ RC ᵓ㐀≀࡟࠾࠸ ࡚ࡣ㸪ෆ㒊ࡢ㕲➽ࡀⓎ㗵ࡋ࡞࠸ࡇ࡜㸪ࡍ࡞ࢃࡕࠕ₯ అᮇࠖࡲ࡛࡟࡜࡝ࡲࡿࡼ࠺࡟⥔ᣢ⟶⌮ࡍࡿᚲせࡀ࠶ ࡿ࡜⪃࠼ࡽࢀࡿࠋRC ♧᪉᭩ࡸ㕲㐨ᵓ㐀≀⥔ᣢ⟶⌮ᶆ ‽(௨ୗ㸪⥔ᣢ⟶⌮ᶆ‽࡜␎グ)5),6)࡞࡝࡟ࡼࡿ࡜ RC ᵓ 㐀≀ࡢෆ㒊ࡢ㗰ᮦࡀ⭉㣗ࡋጞࡵࡿ≧ែࡣ୰ᛶ໬ṧࡾ 10mm ࡜ࡉࢀ࡚࠸ࡿࠋࡇࢀࡣ㸪࠿ࡪࡾཌࡉࡢィ ㄗ ᕪ7)ࡸ㸪୰ᛶ໬῝ࡉࡢィ ㄗᕪ5)ࡶ⪃៖ࡋࡓ್࡛࠶ࡾ㸪 RCᵓ㐀≀ࢆᏳ඲ഃ࡟⥔ᣢ⟶⌮ࡍࡿᣦᶆ࡜࡞ࡗ࡚࠸ࡿࠋ ୍᪉㸪᪤ ࡢㄽᩥ࡟ࡼࡿ࡜㸪᪥ᮏᘓ⠏Ꮫ఍ࡢ RC ᵓ 㐀≀ࡢ⥔ᣢ⟶⌮࡟࠾࠸࡚ࡣ㸪せồᛶ⬟࡟ᑐࡋ࡚⤊ᒁ 㝈⏺≧ែ࡜࡞ࡽ࡞࠸ࡼ࠺࡟ࡍࡿࡓࡵ⥔ᣢ⟶⌮㝈⏺≧ ែ࡛⟶⌮ࡍࡿ⪃࠼᪉ࡀ♧ࡉࢀ࡚࠸ࡿ 8)ࠋࡇࡇ࡛㸪⥔ ᣢ⟶⌮㝈⏺≧ែ࡜ࡣ㸪⤊ᒁ㝈⏺≧ែ࡟⮳ࡽ࡞࠸ࡼ࠺ ࡟ண㜵ಖ඲ⓗ࡟⥔ᣢ⟶⌮ࢆᐜ᫆࡟⾜࠺ࡇ࡜ࡀ࡛ࡁࡿ 㝈⏺ࡢチᐜ≧ែ࡜ࡉࢀ࡚࠸ࡿࠋ 䚽┠ⓗ䛾᫂☜໬䠄ᑐ㇟ᵓ㐀≀䠖RC ᵓ㐀≀䠈ຎ໬ᶵᵓ䠖୰ᛶ໬䠅 䞉ᇶᮏⓗ䛺⪃䛘᪉䛾ᩚ⌮䠈᪤Ꮡ RC ᵓ㐀≀䛾ᇶᮏ䝕䞊䝍䛾ᩚ⌮ 䞉㔜Ⅼ⥔ᣢ⟶⌮༊㛫䠈⟶⌮䝰䝙䝍䝸䞁䜾ᵓ㐀≀䛾㑅ᐃ 䞉ᮇᚅ⪏⏝ᖺᩘ䛾タᐃ䠄50 ᖺ䠈100 ᖺ䠈༙Ọஂ䞉䞉䞉䠅 䞉㝈⏺≧ែ䛾タᐃ(⥔ᣢ⟶⌮㝈⏺≧ែ䠈⤊ᒁ㝈⏺≧ែ) 䚽᪤୰ᛶ໬ ᐃ䝕䞊䝍䛾☜ㄆ䠈ᩚ⌮ĺFMot-DB ุᐃ䝷䞁䜽䛸䛾㐃ື 䞉ᑐ㇟ᵓ㐀≀䠈㒊఩䠈୰ᛶ໬῝䛥䠈䛛䜆䜚䠈㕲➽⭉㣗ᗘ䠈䜂䜃๭䜜䛺䛹 䞉ᮍ ᐃ㒊䛾☜ㄆ䠈ᩚ⌮䠄ඃඛ㡰఩௜䛡䠅 䚽᪤ᑐ⟇㒊ศ䛾☜ㄆ䠈ᩚ⌮ 䞉ᑐ㇟ᵓ㐀≀䠈㒊఩䠈ᑐ⟇᫬ᮇ䠈᪉ἲ䠈⎔ቃ᮲௳䛺䛹 䞉ᑐ⟇ᚋ䛾ຠᯝ䛾☜ㄆ 䞉ྛ⿵ಟᑐ⟇䛾ᮇᚅ⪏⏝ᖺᩘ䛾タᐃ䠄ᐇ 䝕䞊䝍䠇ゎᯒĺタᐃ䠅 䞉FMot-DB 䜈䛾䝕䞊䝍䝧䞊䝇䜈㏣ຍ䠈᭦᪂ 䚽㛗ᑑ࿨໬ᑐ⟇䠄ᕤἲ䠈ᮦᩱ䠅䛾㑅ᐃ 䞉LCC ⟬ᐃ⤖ᯝ䛛䜙᭱㐺ᢏ⾡䠄ᕤἲ䠈ᮦᩱ䠅䛾㑅ᐃ 䚽ᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬❧᱌䠄㛗ᑑ࿨໬䠙୰ᛶ໬ᑐ⟇я䝰䝙䝍䝸䞁䜾䠅 䞉ィ⏬䛾❧᱌ 䞉ᮍᑐ⟇༊㛫䜈䛾ᑐᛂᮇ㛫䜢タᐃ 䞉ᑐ⟇༊㛫䛾୰ᛶ໬㐍⾜䜢⪃៖䛧䛯䠈඲༊㛫䛾ᑐᛂᮇ㛫䜢⟬ᐃ 䞉▷ᮇ䠄䡚10 ᖺᚋ䠅䠈㛗ᮇ䠄200 ᖺ䠅䛻ศ䛡䛶㈝⏝䛾⟬ฟ 䞉㛗ᮇ㛫䜢᝿ᐃ䛧䛯ሙྜ䛾ᚲせண⟬⟬ฟĺ▷୰ᮇ䛻㐺⏝䠈ண⟬☜ಖ 䞉㔜Ⅼ⥔ᣢ⟶⌮༊㛫䠈⟶⌮ᵓ㐀≀䛾䝰䝙䝍䝸䞁䜾䝃䜲䜽䝹䛾㐠⏝

(3)

⾲ 㻝 ྛຎ໬㐣⛬ࡢᐃ⩏2),3) ຎ໬㐣⛬㻌 ᐃ⩏㻌 ᮇ㛫䜢Ỵᐃ䛩䜛せᅉ ₯అᮇ㻌 ୰ᛶ໬䛻䜘䛳䛶㗰ᮦ䛻⭉㣗䛜Ⓨ ⏕䛩䜛䜎䛷䛾ᮇ㛫㻌 ୰ᛶ໬㐍⾜㏿ᗘ㻌 㐍ᒎᮇ㻌 㗰ᮦ䛾⭉㣗㛤ጞ䛛䜙⭉㣗䜂䜃๭ 䜜Ⓨ⏕䜎䛷䛾ᮇ㛫㻌 㗰ᮦ䛾⭉㣗㏿ᗘ㻌 ຍ㏿ᮇ㻌 ⭉㣗䜂䜃๭䜜Ⓨ⏕䛻䜘䜚㗰ᮦ䛾 ⭉㣗㏿ᗘ䛜ቑ኱䛩䜛ᮇ㛫㻌 䜂䜃๭䜜䜢᭷䛩䜛㻌 ሙྜ䛾㗰ᮦ䛾㻌 ⭉㣗㏿ᗘ㻌 ຎ໬ᮇ㻌 㗰ᮦ䛾⭉㣗㔞䛾ቑຍ䛻䜘䜛⪏ຊ 䛾పୗ䛜㢧ⴭ䛺ᮇ㛫㻌 ⾲ 㻞 ྛᖺ௦ࡢ≉ᚩ࠾ࡼࡧ୺࡞ᑐ㇟ᵓ㐀≀ ❹ᕤ᫬ᮇ ᖺ௦ ෆᐜ ➨୍ᮇ 䡚1944 ᖺ ᫛࿴ึᮇ䡚ᡓ๓䠈ேຊ᪋ᕤ䠈⌧ሙ⦎䜚䠈 ≀㈨୙㊊ ➨஧ᮇ 1945ᖺ 䡚1959 ᖺ ᡓᚋ䡚㧗ᗘ⤒῭ᡂ㛗ᮇ๓䠈ᶵᲔ໬ᑟධ ➨୕ᮇ 1960ᖺ 䡚1979 ᖺ 㧗ᗘ⤒῭ᡂ㛗ᮇ䠈ᶵᲔ໬ᑟධ䠈⏕䝁䞁䠈 ኱㔞ᡴタ䞉ᛴ㏿᪋ᕤ ➨ᅄᮇ 1980ᖺ 䡚2000 ᖺ 䝞䝤䝹ᮇ䠈኱ᆺ㛤Ⓨ䛾᥎㐍 ➨஬ᮇ 2000 ᖺ䡚 ⥔ᣢ⟶⌮䛾᫬௦䠈ᑑ࿨ண 䠈ရ㉁㔜ど ⾲ 㻟 ྛᑐ⟇ࢩࢼࣜ࢜ࡢᴫせ ண㜵ಖ඲ᆺ 䝅䝘䝸䜸 䞉⥔ᣢ⟶⌮䝺䝧䝹䜢㧗䛟タᐃ 䞉ண㜵ⓗ䛺ᑐ⟇䛻䜘䜚኱つᶍ䛺⿵ಟ䞉ᨵಟᕤ஦䜢 䛧䛺䛔 ᪩ᮇᑐ⟇ᆺ 䝅䝘䝸䜸 䞉ຎ໬䠈ᦆയ䛜Ⓨぢ䛥䜜䛯䜙᪩ᮇ䛻⿵ಟ䞉ᨵಟᕤ஦ 䜢⾜䛖 ஦ᚋᑐ⟇ᆺ 䝅䝘䝸䜸 䞉䛒䜛⛬ᗘ䛾ຎ໬䛿チᐜ䛩䜛 䞉ᡤᐃ䛾ຎ໬ẁ㝵䛻⮳䛳䛯ᚋ䛻⿵ಟ䞉ᨵಟᕤ஦䜢⾜䛖 ᭦᪂ᆺ 䝅䝘䝸䜸 䞉ᡤᐃ䛾᫬ᮇ䛻᭦᪂䛩䜛䛣䛸䜢๓ᥦ ⾲ 㻠 ᵓ㐀≀ࡢ≧ែ࡜ᶆ‽ⓗ࡞೺඲ᗘࡢุᐃ༊ศ5) ุᐃ༊ศ㻌 ᵓ㐀≀䛾≧ែ㻌 㻭㻌 㻭㻭㻌 㐠㌿ಖᏳ䠈᪑ᐈ䛚䜘䜃බ⾗䛺䛹䛾Ᏻ඲䛺䜙䜃䛻ิ㌴䛾ṇ ᖖ㐠⾜䛾☜ಖ䜢⬣䛛䛩䠈䜎䛯䛿䛭䛾䛚䛭䜜䛾䛒䜛ኚ≧➼ 䛜䛒䜛䜒䛾㻌 㻭㻝㻌 㐍⾜䛧䛶䛔䜛ኚ≧➼䛜䛒䜚䠈ᵓ㐀≀䛾ᛶ⬟䛜పୗ䛧䛴䛴䛒 䜛䜒䛾䠈䜎䛯䛿኱㞵䠈ฟỈ䠈ᆅ㟈➼䛻䜘䜚䠈ᵓ㐀≀䛾ᛶ⬟䜢 ኻ䛖䛚䛭䜜䛾䛒䜛䜒䛾㻌 㻭㻞㻌 ኚ≧䛺䛹䛜䛒䜚䠈ᑗ᮶䛭䜜䛜ᵓ㐀≀䛾ᛶ⬟䜢పୗ䛥䛫䜛䛚 䛭䜜䛾䛒䜛䜒䛾㻌 㻮㻌 ᑗ᮶䠈೺඲ᗘ 㻭 䛻䛺䜛ᜍ䜜䛾䛒䜛ኚ≧➼䛜䛒䜛䜒䛾㻌 㻯㻌 ㍍ᚤ䛺ኚ≧➼䛜䛒䜛䜒䛾㻌 㻿㻌 ೺඲䛺䜒䛾㻌 ࡇࡇ࡛ࡣ㸪๓㏙ࡢ⤊ᒁ≧ែ࡟⮳ࡽ࡞࠸ࡼ࠺࡟ࡍࡿ ࡓࡵ୰ᛶ໬ṧࡾ 10mm ࢆ⥔ᣢ⟶⌮㝈⏺≧ែ࡜ᐃ⩏ࡋ㸪 ࡇࢀ࡟⮳ࡽ࡞࠸ࡼ࠺࡟ᑐ⟇ࢆ᪋ࡍࡇ࡜ࢆ LCC ⟬ᐃࡢ ᇶᮏ࡜ࡋࡓࠋ࡞࠾㸪୰ᛶ໬ṧࡾ 0mm ࡛ࡢ LCC ࡶ⟬ ᐃࡋ࡚ẚ㍑᳨ウࢆ⾜ࡗࡓࠋ  ᑐ⟇ࡢࢩࢼࣜ࢜タᐃ ࡇࡇ࡛ᑐ㇟࡜ࡋࡓᘏ㛗 100km㸦6 ㊰⥺㸧ෆ࡟࠶ࡿ 65ࡢ㧗ᯫᶫࡢ୰࡟ࡣ㸪౪⏝ᚋ 80 ᖺ௨ୖࡢࡶࡢ࠿ࡽ㸪 ᩘᖺ๓࡟❹ᕤࡋࡓࡶࡢ࡞࡝㸪ᖜᗈࡃᏑᅾࡋ࡚࠸ࡿࠋ ୍᪉㸪᫬௦࡜࡜ࡶ࡟ࢥࣥࢡ࣮ࣜࢺࢆᡴタࡍࡿᢏ⾡ࡸ ᪋ᕤᶵᲔࡀ㐍Ṍࡋ㸪♧᪉᭩ࡢᨵᐃ㸪タィἲ㸪⥔ᣢ⟶ ⌮ࡢ⪃࠼᪉࡞࡝ࡶኚ໬ࡋ࡚ࡁࡓࠋࡑࡇ࡛㸪ᑐ㇟࡜ࡍ ࡿ㧗ᯫᶫ࡟ࡘ࠸࡚୰ᛶ໬῝ࡉࡢ ᐃ⤖ᯝ࠿ࡽ⥔ᣢ⟶ ⌮㝈⏺≧ែ࡟⮳ࡿᮇ㛫ࢆ⟬ᐃࡋ㸪❹ᕤ᫬ᮇ㸦⾲ 2㸧㸪 ࠾ࡼࡧᑐ⟇ࡢࢩࢼࣜ࢜㸦⾲ 3㸧ࢆタᐃࡋࡓࠋ  ᑐ⟇ࡢඃඛ㡰఩ࡢタᐃ  ᘏ㛗 100km ࡟ཬࡪᆅᇦ࡛౪⏝ࡉࢀ࡚࠸ࡿ㧗ᯫᶫࡢ ࠺ࡕ㸪࡝ࡢᵓ㐀≀࠿ࡽᑐ⟇ࡍࡿࡢ࠿㸪ࡇࡢඃඛ㡰఩ ௜ࡅࡣ㸪௨ୗࡢ 2 ࡘࡢࢫࢸࢵࣉ࡟ࡼࡗ࡚ᩚ⌮ࡋࡓࠋ ᇶᮏⓗ࡟ࡣ୰ᛶ໬ࡀ㐍⾜ࡋ㸪๤㞳๤ⴠ࡞࡝ࡢኚ≧ࡀ ከࡃ☜ㄆࡉࢀ࡚࠸ࡿᵓ㐀≀࠿ࡽᑐฎࡍࡿ࡜࠸࠺᪉㔪 ࡟ࡼࡾタᐃࡋࡓࠋ 㸺Step1㸼ᐇ ࢹ࣮ࢱ࠿ࡽ୰ᛶ໬ṧࡾ 10mm ࡟⮳ࡿᮇ 㛫ࢆ⟬ᐃ㸪㡰఩௜ࡅ㸦㔜ࡳ 1.0㸧 㸺Step2㸼㏻ᖖ඲⯡᳨ᰝ 5)ࡢ⤖ᯝ㸦௨ୗ㸪FMot-DB ุ ᐃࣛࣥࢡ㸧ࡢᶆ‽್ͤ ࠿ࡽ㡰఩௜ࡅ㸦㔜ࡳ 0.5㸧 ͤFMot-DB ࡼࡾ⌧≧ࠕAAࠖ㸪ࠕA1ࠖࡀ࡞࠸ࡓࡵุᐃ ࣛࣥࢡࠕA2㸸10 Ⅼࠖ㸪ࠕB㸸5 Ⅼࠖ㸪ࠕC:1 Ⅼࠖ࡜ࡋ࡚ ຍ⟬㸪ᵓ㐀≀ẖ࡟ᑐ㇟㠃✚ࡀ␗࡞ࡿࡓࡵᴫ⟬ࡢᑐ ㇟㠃✚࡛㝖ࡋ࡚ᶆ‽್ࢆ⟬ᐃࠋ ᭱⤊ⓗ࡞ᑐ⟇ࡢඃඛ㡰఩ࡣ㸪ᘧ㸦1㸧࡟ࡼࡾỴᐃࡋ ࡓࠋ 㸦Step1 㡰఩×1.0㸧㸩㸦Step2 㡰఩×0.5㸧࣭࣭࣭㸦1㸧  $ ᑐ⟇㈝ࡢタᐃ ⾲ 4 ࡟೺඲ᗘࡢุᐃ༊ศࢆ♧ࡍ5)ࠋFMot-DB ุᐃ ࣛࣥࢡ A2 ࡢ㒊ศࡣ㸪ඃඛࡋ࡚ᑐ⟇ࡀᚲせ࡞ࡶࡢ࡛࠶ ࡿࠋࡑࡇ࡛㸪A2 ࡣ 10 ᖺ௨ෆ࡟ᑐ⟇ࢆ᏶஢ࡉࡏࡿࡇ ࡜࡜ࡋ㸪ᐇ⦼ࢆ⪃៖ࡋ࡚ᑐ㇟㠃✚ᙜࡓࡾࡢ㈝⏝࡜ࡋ ࡚⟬ᐃࡋࡓࠋ  ㏻ᖖ඲⯡᳨ᰝ㈝ࡢタᐃ  ㏻ᖖ඲⯡᳨ᰝࡢ㈝⏝ ࡣ㸪ࡇࢀࡲ࡛ࡢᐇ⦼࡟ ࡼ ࡾ タ ᐃ ࡋ ࡓ ࠋ ࡓ ࡔ ࡋ㸪A2 ᑐ⟇ࡀ 10 ᖺ࡛ ᏶஢ࡋ㸪Ⅼ᳨ࡋ࡞ࡅࢀ ࡤ ࡞ ࡽ ࡞ ࠸ 㒊 ศ ࡶ ᖺ ࠎ ᑡ ࡞ ࡃ ࡞ ࡿ ࡇ ࡜ ࢆ ᝿ ᐃ ࡋ 㸪 ࡇ ࡢ ㈝⏝ࡣ㸪10 ᖺ௨㝆㸪㝖ࠎ࡟ῶᑡࡋ㸪20 ᖺ௨㝆ࡣ⌧≧ ࡢ 2/3 ࡢ㈝⏝࡟࡞ࡿ࡜ࡋࡓ(ᅗ 3)ࠋ࡞࠾㸪ࡇࡢ㈝⏝࡟ ࡣ 10 ᖺẖ࡟ᐇ᪋ࡍࡿ≉ู඲⯡᳨ᰝ5)ࡢ㈝⏝ࡶྵࡵࡓࠋ  ᑐ⟇ᕤࡢᑑ࿨タᐃ  ከᒙᵓ㐀࡛࠶ࡿ⾲㠃⿕そᮦࡢᛶ⬟ ๓㏙ࡋࡓ࡜࠾ࡾࡇࡇ᳨࡛ウࡋ࡚࠸ࡿ㧗ᯫᶫࡢ LCC ⟬ᐃ࡟࠾࠸࡚ࡣ㸪⤊ᒁ≧ែ࡟⮳ࡽ࡞࠸ࡼ࠺࡟ࡍࡿࡓ ࡵ⥔ᣢ⟶⌮≧ែ㸦୰ᛶ໬ṧࡾ 10mm㸧࡟㐩ࡍࡿ᫬ᮇ ࡼࡾࡶ๓࡟୰ᛶ໬ᢚไᑐ⟇㸪ࡲࡓࡣ⪏๤㞳๤ⴠᑐ⟇ ࡜ࡋ࡚⾲㠃⿕そᮦࢆ᪋ࡍࡇ࡜࡜ࡋࡓࠋࡋ࠿ࡋ㸪⾲㠃 ⿕そᮦࡣ㸪ࡑࡢᕤἲ㸪ᮦᩱ࡟ࡼࡾ୰ᛶ໬ࢆᢚไ࡛ࡁ ࡿᮇ㛫ࡀ␗࡞ࡿ࡜⪃࠼ࡽࢀ㸪ᮦ㉁࡟ࡼࡿᑑ࿨ࡢ㐪࠸ ࡟ࡘ࠸᳨࡚ウࡍࡿᚲせࡀ࠶ࡿࠋ  ⾲㠃⿕そᮦࡣ㸪RC ᵓ㐀≀ࡢ⾲㠃࡟ಖㆤᒙࢆᙧᡂࡋ㸪 ⨾ほࢆᨵၿࡍࡿ࡜࡜ࡶ࡟㸪ຎ໬ᅉᏊࢆࢥࣥࢡ࣮ࣜࢺ ෆ㒊࡟ᾐ㏱㸦౵ධ㸧ࡉࡏ࡞࠸ࡇ࡜㸪ࡲࡓ㸪࠿ࡪࡾࢥ ࣥࢡ࣮ࣜࢺࡢⴠୗࢆ㜵ࡄࡇ࡜ࢆ┠ⓗ࡜ࡋ࡚㐺⏝ࡉࢀ ᅗ 㻟 ㏻ᖖ඲⯡᳨ᰝ㈝⏝ࡢ᝿ᐃ

(4)

࡚࠸ࡿࠋ୍⯡ⓗ࡟ࡣ㸪ከᒙᵓ㐀࡜࡞ࡿᮦᩱ࡛ୗሬࡾ ᒙࡀ㌣య࡜ࡢ᥋╔ຊࢆⓎ᥹ࡋ㸪୺࡞せồᛶ⬟࡛࠶ࡿ ຎ໬ᅉᏊࡢ㐽᩿㸪⪏๤㞳⪏๤ⴠᛶ࡞࡝࡟ࡣ୰ሬࡾᒙ ࡀࡑࡢᛶ⬟ࢆⓎ᥹ࡋ࡚࠸ࡿࠋࡋ࠿ࡋ㸪ࡇࡢୗሬࡾᒙ㸪 ୰ሬࡾᒙࡣ⣸እ⥺࡟ࡼࡾຎ໬ࡋࡸࡍ࠸ࡶࡢࡀከࡃ㸪 ࡇࢀࢆಖㆤࡍࡿࡓࡵ࡟ୖሬࡾᒙࡀᚲせ࡛㸪⪏ೃᛶࡢ 㧗࠸ᮦᩱࡀ㐺⏝ࡉࢀ࡚࠸ࡿࠋࡑࡇ࡛㸪⾲㠃⿕そᮦࡢ ᑑ࿨࡜ࡋ࡚ࡣୖሬࡾᒙࡀ⣸እ⥺࡟ࡼࡾຎ໬ࡋ㸪ᶵ⬟ ࢆⓎ᥹ࡋ࡞ࡃ࡞ࡗࡓ᫬ᮇ࡜タᐃࡋ㸪ࡇࡢ᫬Ⅼ࡛ୖሬ ࡾ ᒙ ࡢ ሬ ᭰ ࠼ ࡀ ᚲ せ ࡞ ᫬ ᮇ ࡟ ࡞ ࡿ ࡜ タ ᐃ ࡋ ࡓ ࠋ  ⾲㠃⿕そᮦࡢሬ᭰࠼᫬ᮇ ㏆ᖺ㸪RC ᵓ㐀≀ࢆྵࡵࡓ࢖ࣥࣇࣛࡢ㛗ᑑ࿨໬ࡀὀ ┠ࡉࢀ㸪ྛᮦᩱ࣓࣮࣮࡛࢝ࡶ᪂ࡋ࠸ᮦᩱࡸᕤἲࡀ㛤 Ⓨࡉࢀ࡚ࡁ࡚࠾ࡾ㸪⣸እ⥺ຎ໬➼ࡢ⪏ஂᛶ࡟㛵ࡍࡿ ㈨ᩱࡶබ㛤ࡉࢀ࡚࠸ࡿࠋ ⾲ 5 ࡟ᙜヱႠᴗ༊㛫ෆ࡛ࡢ㐺⏝ᐇ⦼ࡢ࠶ࡿ⾲㠃⿕ そᮦࡢୖሬࡾᮦ࡟㛵ࡍࡿᑑ࿨ࢹ࣮ࢱࢆ♧ࡍࠋ୍⯡ⓗ ࡟ࡇࢀࡽࡢ᭷ᶵ⣔ࡢୖሬࡾᮦࡣ 1 ᖺ࡛ 2ȝm ⛬ᗘᾘ⪖ ࡋ࡚࠸ࡃ࡜ゝࢃࢀ࡚࠸ࡿ 9)ࠋࡑࡇ࡛㸪ྛᮦᩱࡢୖሬ ࡾᒙࡢタィ⭷ཌ㔞࡞࡝࠿ࡽᑑ࿨㸻ሬ᭰࠼᫬ᮇࢆ⟬ᐃ ࡋࡓࠋࡑࡢ⤖ᯝ㸪ᑑ࿨ࡣ▷࠸ࡶࡢ࡛ 14 ᖺ㸪㛗࠸ࡶࡢ ࡛ 47 ᖺ࡜࡞ࡾ㸪ᮦᩱ࡟ࡼࡗ࡚ሬ᭰࠼ࡲ࡛ࡢᮇ㛫ࡀ␗ ࡞ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡉࡽ࡟㸪2 ᅇ┠௨㝆ࡣ㸪෌ ሬ⿦᫬ࡢ᪋ᕤ࡟ࡼࡿㄗᕪࢆ⪃៖ࡋ࡚ᑑ࿨ࡀ 10%▷ࡃ ࡞ࡿ࡜タᐃࡋ㸪10 ᖺ㛫ࡢᑑ࿨ࡀ☜ಖ࡛ࡁ࡞ࡃ࡞ࡗࡓ ᫬Ⅼ࡛඲࡚ࡢ⾲㠃⿕そᮦࢆ᧔ཤࡋ࡚෌᪋ᕤࡍࡿ࡜タ ᐃࡋࡓࠋᚑࡗ࡚㸪ࡑࢀࡒࢀࡢᕤἲࡢᮦᩱ㈝࡜᪋ᕤ㈝ ࢆྜࢃࡏࡓึᮇࢥࢫࢺ㸪ሬ᭰࠼ࢥࢫࢺ㸪෌᪋ᕤࢥࢫ ࢺ࡟ຍ࠼㸪ሬ᭰࠼ࡲ࡛ࡢᮇ㛫ࡢᕪ㸪ࡍ࡭࡚ࡢᮦᩱࢆ ᧔ཤࡋ࡚෌᪋ᕤࡍࡿࡲ࡛ࡢᮇ㛫ࡢᕪࡀ 200 ᖺ㛫ࡢ LCCࡢᕪ࡜ࡋ࡚⾲⌧ࡉࢀࡿࡇ࡜࡟࡞ࡿࠋ   /&& ࡢ⟬ᐃ  /&& ⟬ᐃ⤖ᯝ࡟ࡼࡿᕤἲ࣭ᮦᩱࡢ㑅ᐃ౛ LCC ࢆ⪃៖ࡋࡓᕤἲ࣭ᮦᩱࢆ㑅ᐃࡍࡿࡓࡵ㸪⾲㠃 ⿕そᕤἲ 3 ✀㢮ࢆᑐ㇟࡜ࡋ࡚㸪ࡇࡇ࡛ࡣ⪏⏝ᖺᩘࡢ 㐪࠸ࡀ 200 ᖺࡢ LCC ࡟ཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ  /&& ⟬ᐃ᮲௳ ⾲ 5 ࡟⾲㠃⿕そᮦࡢ✀㢮࡜ྛ✀⟬ᐃ᮲௳ࢆ♧ࡍࠋ ᮇᚅ⪏⏝ᖺᩘࡣ㸪᭷ຠ⭷ཌ㔞࡜ᾘ⪖㔞࠿ࡽ⟬ฟࡋࡓ ᖺᩘ࡟ᾘ⪖㛤ጞᖺᩘࢆຍ࠼ࡓࡶࡢ࡛࠶ࡿ 9)ࠋࡑࡢᚋ㸪 ࢺࢵࣉࢥ࣮ࢺሬ᭰࠼ᚋ࡟ᮇᚅ⪏⏝ᖺᩘࡀ 10%ࡢᮇ㛫 ࡀ▷ࡃ࡞ࡿ࡜タᐃࡋࡓ10) ⾲ 㻡 ⾲㠃⿕そᮦࡢ✀㢮࡜ྛ✀⟬ᐃ᮲௳ ᕤἲྡ a b c ୺ᡂศ 䜰䜽䝸䝹䝅䝸䝁䞁⣔ 䜴䝺䝍䞁⣔ 䜴䝺䝍䞁⣔ ⭷ཌ㔞(ȝm) 70 24 90 ୖሬ䜚ᮦ⪏⏝ᖺᩘ(ᖺ) 37 14 47 ᾘ⪖㔞(ȝm/ᖺ) 2 2 2 ᾘ⪖㛤ጞᖺᩘ(ᖺ) 2 2 2 2ᅇ┠䜎䛷䛾ᮇ㛫(-10%) 33 ᖺ 13 ᖺ 42 ᖺ ሬ᭰ྍ⬟ᅇᩘ(10 ᖺ䜎䛷) 13 ᅇ 4ᅇ 15 ᅇ ᅗ 㻠 ⾲㠃⿕そᕤἲࡢ LCC ⟬ᐃ⤖ᯝ ᭱⤊ⓗ࡟ᮇᚅ⪏⏝ᖺᩘࡀ 10 ᖺ௨ୗ࡟࡞ࡗࡓ᫬Ⅼ࡛ ⾲㠃⿕そᮦࡢ᧔ཤ㸪෌᪋ᕤࢆ᝿ᐃࡋࡓࠋ࡞࠾㸪ྛ✀ ㈝⏝ࡣᐇ⦼ࢆᇶ࡟タᐃࡋࡓࠋ  /&& ⟬ᐃ⤖ᯝ ᅗ 4 ࡟ LCC ⟬ᐃ⤖ᯝࢆ♧ࡍࠋ⟬ᐃ⤖ᯝ࡛ࡣ㸪C ᕤ ἲࡀ᭱ࡶ⤒῭ⓗ࡞ᕤἲ࣭ᮦᩱ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁ ࡓࠋࡇࢀࡣ㸪ྛᕤἲࡢᮦᩱ㈝࡜᪋ᕤ㈝ࢆྜࢃࡏࡓึ ᮇࢥࢫࢺ㸪ሬ᭰࠼࣭෌᪋ᕤࢥࢫࢺࡔࡅ࡛࡞ࡃ㸪ሬ᭰ ࠼ࡲ࡛ࡢᮇ㛫㸪඲࡚ࡢᮦᩱࢆ᧔ཤࡋ࡚෌᪋ᕤࡍࡿࡲ ࡛ࡢᮇ㛫ࡀ㛗ࡃ㸪⟬ᐃᮇ㛫ෆࡢ࢖࣋ࣥࢺࡀⓎ⏕ࡏࡎ LCCࢆᢚ࠼ࡿࡇ࡜ࡀ࡛ࡁࡿᕤἲ࡜࠸࠺ࡇ࡜࡛࠶ࡿࠋ ௒ᚋࡢ⪏๤㞳๤ⴠᑐ⟇ᕤἲ㸪୰ᛶ໬ᢚไᕤἲࢆ㑅 ᐃࡍࡿሙྜ㸪ึᮇࢥࢫࢺࡶᙜ↛࡛࠶ࡿࡀ㸪㛗ᮇࡢ LCC ࢆ⪃៖ࡋࡓ㑅ᐃࡀᚲせ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ  㛗ᑑ࿨໬ࢩࢼูࣜ࢜ࡢ /&& ⟬ᐃ౛ ண㜵ᑐ⟇㸪᪩ᮇᑐ⟇㸪᭦᪂ᑐ⟇ࡢ㛗ᑑ࿨໬ࡢࢩࢼ ࣜ࢜࡟ᚑࡗࡓ LCC ࡣ㸪୰ᛶ໬ṧࡾࢆ⏝࠸࡚ࢩࢼࣜ࢜ ࢆタᐃࡋ㸪ᆅそ㧗ḍ࡟ࡣ⪏๤㞳๤ⴠᑐ⟇ᕤἲ㸪ᱱ࣭ ᗋ∧࣭ᰕ࡟ࡣ୰ᛶ໬ᢚไᑐ⟇࡛ᑐᛂࡍࡿ࡜ࡋ࡚⟬ᐃ ࡋࡓࠋࡇࡇ࡛ࡣ㸪౛࡜ࡋ࡚➨஬ᮇ㸦⾲ 2㸧ࡢ㧗ᯫᶫ ࢆᑐ㇟࡜ࡋண㜵ಖ඲ᆺ㸪᪩ᮇᑐ⟇ᆺ㸪᭦᪂ᆺࡢྛࢩ ࢼࣜ࢜࡟ᛂࡌࡓ LCC ࢆ⟬ᐃࡋ㸪ຠᯝⓗ࠿ࡘ⤒῭ⓗ࡞ ࢩࢼࣜ࢜ࡀ࡝ࢀ࡛࠶ࡿ࠿᳨ウࡋࡓ⤖ᯝࢆ♧ࡍࠋ  ➨஬ᮇࡢ㧗ᯫᶫࢆᑐ㇟࡜ࡋࡓ /&& ࡢ⟬ᐃ ࡇࡇ࡛ࡣ⟬ᐃࡢ୍౛࡜ࡋ࡚ᘏ㛗⣙ 290m ࡢ H 㧗ᯫ ᶫࡢ୰ᛶ໬ㄪᰝ⤖ᯝࢆᇶ࡟⟬ᐃࡋࡓ LCC ࢆ♧ࡍࠋ ⟬ᐃ᮲௳ࡣ௨ୗࡢ 3 ࢣ࣮ࢫ࡜ࡋࡓࠋ Caseձ㸸࠙ண㜵ಖ඲ᆺࢩࢼࣜ࢜ࠚ୰ᛶ໬ṧࡾ 10mm ᫬ Ⅼ࡛ᑐ⟇ࢆ᪋ࡍࠋ Caseղ㸸࠙᪩ᮇᑐ⟇ᆺࢩࢼࣜ࢜ࠚ୰ᛶ໬ṧࡾ 0mm ᫬ Ⅼ࡛ᑐ⟇ࢆ᪋ࡍࠋ Caseճ㸸࠙᭦᪂ᆺࢩࢼࣜ࢜ࠚ୰ᛶ໬ᢚไᑐ⟇ࢆ᪋ࡉࡎ ᨺ⨨ࡋ㸪኱つᶍᨵಟࡍࡿࠋ  ୰ᛶ໬࡟ࡼࡿኚ≧ண   ୰ᛶ໬࡟ࡼࡿኚ≧ண ᮲௳ࢆ⾲㸴࡟♧ࡍࠋ⾲୰ࡢ ࠿ࡪࡾ࡜୰ᛶ໬῝ࡉࡣ㸪ྛ㒊ᮦࡢ୰ᛶ໬ㄪᰝ⤖ᯝࢆ ᖹᆒ໬ࡋࡓᩘ್࡛࠶ࡿࠋ୰ᛶ໬㏿ᗘಀᩘࡣ㸪❹ᕤᖺ ࡜୰ᛶ໬῝ࡉ࠿ࡽ⟬ฟࡋ㸪ὀ┠ࡋࡓࡢࡣ᭱እ⦕㕲➽ ᚄ D16 ࡛㸪Caseձࡢ኱つᶍᨵಟ᫬ᮇࡣ㸪㕲➽ࡢ㉁㔞 0 20 40 60 80 100 120 140 160 180 200 ⣼✚㈝ ⏝ ᖺᩘ㸦ᖺ┠㸧 aᕤἲ bᕤἲ cᕤἲ aᕤἲ bᕤἲ 䠿ᕤἲ

(5)

ῶᑡ⋡ 10%࡟㐩ࡍࡿ᫬ᮇ࡜タᐃࡋࡓࠋࡑࡇ࡛㸪ཧ⪃ ᩥ⊩ 5)࡟ᚑ࠸୰ᛶ໬ṧࡾ 10mm㸪0mm ࡟㐩ࡍࡿࡲ࡛ ࡢᖺᩘ࠾ࡼࡧ㕲➽ࡢ㉁㔞ῶᑡ⋡ 10%࡟㐩ࡍࡿᖺᩘࢆ ィ⟬ࡋࡓࠋ⤖ᯝࢆ⾲ 7 ࡟ࡲ࡜ࡵ࡚♧ࡍࠋ  /&& ⟬ᐃ᮲௳ ⾲ 8 ࡟ᑐ⟇ᕤࡢ᮲௳ࢆ♧ࡍࠋᨵಟᕤ஦ࡣ㸪ᇶ♏ ᮺ࣭ࣇ࣮ࢳࣥࢢ㸸ᑐ㇟እ㸪ᰕ㸸RC ⿵ᙉ㸪ᱱ࣭ᗋ∧㸸 RC ⿵ᙉࢆ᝿ᐃࡋࡓࠋྛ✀㈝⏝(ປົ㸪㈨ᶵᮦ㸪Ᏻ඲ ㈝)ࡣ㸪ࡇࢀࡲ࡛ࡢᐇ⦼ࢆᇶ࡟タᐃࡋࡓࠋ  /&& ⟬ᐃ⤖ᯝ LCC⟬ᐃ⤖ᯝࢆᅗ 5 ࡟♧ࡍࠋ୰ᛶ໬ᢚไᑐ⟇ࢆ᪋ ࡉࡎᨺ⨨ࡋ㸪኱つᶍᨵಟࡋࡓሙྜ㸪LCC ࡢ⥲㢠ࡣ᭱ ࡶ኱ࡁࡃ࡞ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ୰ᛶ໬ṧࡾ 10mm ᫬Ⅼ࠾ࡼࡧ 0mm ᫬Ⅼ࡛ᘏ࿨໬ᑐ⟇ࢆ᪋ࡋࡓሙྜ㸪୰ ᛶ໬ṧࡾ 10mm ᫬Ⅼ࡛ᘏ࿨໬ᑐ⟇ࢆ᪋ࡋࡓ᪉ࡀ LCC ࡢ⥲㢠ࡣᢚไࡉࢀ㸪⤒῭ⓗ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ ࡞࠾㸪ࡇࡇ࡛ࡢ LCC ࡢ㈝⏝ࡢᕪࡣ㸪୍ࡘࡢ㧗ᯫᶫࢆ ᑐ㇟࡜ࡋࡓሙྜ࡛࠶ࡾ㸪඲ 65 ࡢ㧗ᯫᶫࢆྠࡌ᮲௳࡛ LCCࢆ⟬ᐃࡋࡓሙྜ࡟ࡣ㸪ᚲせ࡞㈝⏝ࡢᕪ(‽ഛࡋ࡞ ࡅࢀࡤ࡞ࡽ࡞࠸஦ᴗ㈝ࡢᕪ)ࡀࡼࡾ኱ࡁࡃࡇ࡜࡟࡞ࡿࠋ  ᑐ⟇ࢩࢼ᳨ࣜ࢜ウࡢࡲ࡜ࡵ ➨஬ᮇࡢ㧗ᯫᶫࢆᑐ㇟࡜ࡋ࡚ᑐ⟇ࢩࢼูࣜ࢜࡟ LCCࡢ⟬ᐃࢆ⾜ࡗࡓࠋࡑࡢ⤖ᯝࢆ௨ୗ࡟グࡍࠋ ࣭᭦᪂ᆺ(Caseճ)ࡢሙྜ㸪▷࠸ᮇ㛫࡛ከ㢠ࡢ㈝⏝ࡀ ᚲせ࡜࡞ࡾ㸪⥲㢠ࡶ᭱ࡶ኱ࡁࡃ࡞ࡗࡓࠋ ࣭ண㜵ಖ඲ᆺ(Caseձ)ࡢ᪉ࡀ㸪᪩ᮇᑐ⟇ᆺ(Caseղ)ࡼ ࡾࡶ⤒῭ⓗ࡛࠶ࡗࡓࠋ ࣭⤒㐣ᖺᩘࡀᑡ࡞࠸➨஬ᮇࡢᵓ㐀≀࡛࠶ࡗ࡚ࡶ㸪᪩ ࡵࡢᑐ⟇ࢆ᪋ࡋࡓ᪉ࡀ᭦᪂ᆺࡢ 74%ࡢ㈝⏝࡛ᑐ⟇ ࡀྍ⬟࡛࠶ࡾ㸪㛗ᮇࡢ㈝⏝ࡣ⤒῭ⓗ࡛࠶ࡿࡇ࡜ࡀ ☜ㄆ࡛ࡁࡓࠋ   ᡓ␎ⓗ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃ ࡇࢀࡲ࡛ࡢ᳨ウࢆᇶ࡟඲ 65 ࡢ㧗ᯫᶫࢆᑐ㇟࡜ࡋ࡚ LCCࢆࢩࢼูࣜ࢜࡟⟬ᐃࡋࡓࠋᅗ 6 ࡟ண㜵ಖ඲ᆺࢩ ࢼࣜ࢜࡜᭦᪂ᆺࢩࢼࣜ࢜ࡢ LCC ⟬ᐃ⤖ᯝࢆ♧ࡍࠋ RC㧗ᯫᶫࢆண㜵ᑐ⟇ᆺࢩࢼ࡛ࣜ࢜⥔ᣢ⟶⌮ࡋࡓሙྜ㸪 ᭦᪂ᆺࢩࢼࣜ࢜ࡢ 55.7%ࡢ㈝⏝࡛ᑐ⟇ࡀྍ⬟࡛࠶ࡾ ⤒῭ⓗ࡛࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋ ࡲࡓ㸪ࡇࡇ࡛ࡣ⣬㠃ࡢ㒔ྜ࡛඲࡚ࡢ⟬ᐃ⤖ᯝࢆල యⓗ࡟♧ࡋ࡚࠸࡞࠸ࡀ㸪ࡇࡢ⤖ᯝࡢヲ⣽(⟬ᐃࢹ࣮ ࢱ)ࡣ㸪ࡇࢀࡲ࡛ຎ໬ࡀ㢧ᅾ໬ࡋ࡚ᑐ⟇ࢆ᳨ウ㸪ᐇ᪋ ࡋ࡚࠸ࡓࡶࡢ࡜ẚ㍑ࡋ࡚ྛ㧗ᯫᶫࡢ⌧≧ࡢຎ໬⛬ᗘ ࡀ཯ᫎࡉࢀ㸪ࡑࡢୖ࡛ྛ㒊ᮦẖ࡟ᚲせ࡞ᑐ⟇ࢆ㸪࠸ ࡘ᪋ᕤࡍࡿ࡭ࡁ࡞ࡢ࠿㸪ࡑࢀ࡟ᚲせ࡞㈝⏝ࡀ࡝ࡢ⛬ ᗘ࡛࠶ࡿ࠿ࢆ☜ㄆࡍࡿࡇ࡜ࡀ࡛ࡁ㸪ࡇࢀ࡟ࡼࡾᡓ␎ ⓗ࡞⥔ᣢ⟶⌮ィ⏬ࡀ⟇ᐃ࡛ࡁࡿࡇ࡜ࡀ☜ㄆࡉࢀ࡚࠸ ࡿࠋ   ⾲ 㻢 ୰ᛶ໬࡟ࡼࡿኚ≧ண ᮲௳  ⾲ 㻣 ୰ᛶ໬࡟ࡼࡿྛኚ≧࡟⮳ࡿᮇ㛫ࡢ⟬ฟ⤖ᯝ ୖẁ㸸❹ᕤᖺ࠿ࡽࡢ⤒㐣ᖺᩘ ୗẁ㸸2014 ᖺࢆᇶ‽࡜ࡋࡓሙྜࡢᚲせᖺᩘ  ⾲ 㻤 ᑐ⟇ᕤࡢ᮲௳  ᅗ 㻡 H 㧗ᯫᶫࢆᑐ㇟࡜ࡋࡓ LCC ⟬ᐃ⤖ᯝ ᅗ 㻢 ࢩࢼูࣜ࢜ࡢ LCC ⟬ᐃ⤖ᯝ      0 20 40 60 80 100 120 140 160 180 200 ⣼✚ ㈝⏝ ᖺᩘ㸦ᖺ┠㸧 ண㜵ಖ඲ᆺ ᭦᪂ᆺ ᭦᪂ᆺ ண㜵ಖ඲ᆺ ❹ᕤᖺ ᖹᆒ࠿ࡪࡾ ᖹᆒ୰ᛶ໬ ῝ࡉ ୰ᛶ໬ ㏿ᗘಀᩘ ᭱እ⦕ 㕲➽ᚄ H.14 㸦2002ᖺ㸧 32.4mm 17.7mm 5.1mm/Ҁᖺ D16 ❹ᕤᖺ Caseձ ୰ᛶ໬ṧࡾ10mm ࡟㐩ࡍࡿࡲ࡛ࡢᖺᩘ Caseղ ୰ᛶ໬ṧࡾ0mm ࡟㐩ࡍࡿࡲ࡛ࡢᖺᩘ Caseճ 㕲➽ࡢ㉁㔞ῶᑡ⋡ࡀ 10%࡟㐩ࡍࡿᖺᩘ H.14 㸦2002ᖺ㸧 19ᖺ㸦2021ᖺ㸧 㸦7ᖺᚋ㸧 40ᖺ㸦2042ᖺ㸧 㸦28ᖺᚋ㸧 108ᖺ㸦2110ᖺ㸧 㸦96ᖺᚋ㸧 No. 㒊఩ ᑐ㇟ᩘ㔞(m2) ᑐ⟇ ᆅそ䞉㧗ḍ 1882.4 ⪏๤㞳๤ⴠ ᗋ∧ 2099.7 ୰ᛶ໬ᢚไ ᆅそ䞉㧗ḍ 1882.4 ⪏๤㞳๤ⴠ ᗋ∧ 2099.7 ୰ᛶ໬ᢚไ ᆅそ䞉㧗ḍ ᗋ∧ Case䐟 RC෌ᵓ⠏ +୰ᛶ໬ᢚไ Case䐡 3982.1 Case䐠 0 20 40 60 80 100 120 140 160 180 200 ⣼✚㈝⏝ ᖺᩘ㸦ᖺ┠㸧 Caseձ Caseղ Caseճ Case䐡 Case䐠 Case䐟

(6)

 ࠾ࢃࡾ࡟  ᮏሗࡣ㸪௒ᚋࡢ㛗ᑑ࿨ィ⏬సᡂࡢᇶᮏ᝟ሗ࡜࡞ࡿ タᐃᖺᩘ㸦200 ᖺ㸧࡟ᚲせ࡞㈝⏝㸪༶ࡕ LCC ࡢ⟬ᐃ ࡟ࡘ࠸࡚ࡲ࡜ࡵࡓࡶࡢ࡛࠶ࡿࠋ⟬ᐃࡋࡓ LCC ࡣ㸪ண 㜵ಖ඲ࡢ⪃࠼᪉ࢆᇶᮏ࡜ࡋ࡚⥔ᣢ⟶⌮ࡋࡓሙྜ࡜㸪 㐺ษ࡞᫬ᮇ࡟ᚲせ࡞ᑐ⟇ࢆ᪋ࡉࡎ࡟ᨺ⨨ࡋࡓሙྜ࡛ ࡣ RC ᵓ㐀≀ࡢ⥔ᣢ⟶⌮࡟ᚲせ࡞㈝⏝࡟኱ࡁ࡞ᕪࡀ ࠶ࡿࡇ࡜ࡀ☜ㄆ࡛ࡁࡓࠋࡲࡓ㸪ᵓ㐀≀ẖࡢ୰ᛶ໬㐍 ⾜⛬ᗘ࡟ࡼࡾᑐ⟇ࡢඃඛ㡰఩௜ࡅࡋࡓ⤖ᯝ࡜㸪ࡇࢀ ࡲ࡛⵳✚ࡋ࡚ࡁࡓⅬ᳨ㄪᰝ⤖ᯝࢆྲྀࡾࡲ࡜ࡵࡓࢹ࣮ ࢱ࣮࣋ࢫ(FMot-DB)࡟ࡼࡾඃඛ㡰఩௜ࡅࢆ⾜ࡗࡓࡇ ࡜ࡣ㸪ࡇࢀࡲ࡛ຎ໬ࡀ㢧ᅾ໬ࡋ࡚ᑐ⟇ࢆ᳨ウ㸪ᐇ᪋ ࡋ࡚࠸ࡓࡶࡢ࡜ẚ㍑ࡋ࡚⌧≧࡟༶ࡋࡓ㛗ᑑ࿨໬ィ⏬ ࡀసᡂ࡛ࡁࡓࡶࡢ࡜⪃࠼ࡽࢀࡓࠋ ௒ᅇࡢ⥔ᣢ⟶⌮ィ⏬ࡢ⟇ᐃࡣ㸪࠶ࡿᆅᇦ࡟≉ᐃࡋ㸪 ༢⣧໬ࡋࡓᙧᘧࡢᵓ㐀ࢆᑐ㇟࡜ࡋࡓ LCC ࡢ⟬ᐃ࡛ࡣ ࡞ࡃ㸪ᐇ㝿࡟౪⏝ࡉࢀ࡚࠸ࡿᘏ㛗 100km ࡟ཬࡪ⠊ᅖ ࡟࠶ࡿ㕲㐨㧗ᯫᶫࢆᑐ㇟࡜ࡋ㸪Ⅼ᳨ㄪᰝࢹ࣮ࢱ࡟ࡼ ࡿຎ໬ண ࡢ⢭ᗘྥୖࡸᐇ⦼࡜⤒㦂ࡢ࠶ࡿ᪋ᕤ఍♫ ࡀ⟬ฟࡋࡓ⿵ಟ㈝⏝ࢆ⪃៖ࡋࡓⅬ࡞࡝㸪ࡼࡾಙ㢗ᛶ ࡀ㧗ࡃ㸪ྜ⌮ⓗ࡞ LCC ࡢ⟬ᐃ࡜ᡓ␎ⓗ࡞⥔ᣢ⟶⌮ィ ⏬ࡢ⟇ᐃࡀ࡛ࡁࡓࡶࡢ࡜⪃࠼ࡽࢀࡿࠋᮏሗ࡛ࡣ㸪RC ᵓ㐀≀࡛࠶ࡿ㧗ᯫᶫࢆᑐ㇟࡟᳨ウࢆ⾜ࡗ࡚ࡁࡓࡀ㸪 ⥅⥆ࡋ࡚ࢺࣥࢿࣝ࡞࡝ࡢᆅୗᵓ㐀≀㸪ᶫᱱ࡞࡝ࡢ㗰 ᵓ㐀≀࡟ࡘ࠸࡚㛗ᑑ࿨໬ィ⏬ࢆసᡂ୰࡛࠶ࡾ㸪௒ᚋ ࡶィ⏬ࡢ⟇ᐃᑐ㇟ࢆᣑᙇࡋ࡚࠸ࡃணᐃ࡛࠶ࡿࠋ ᭱ᚋ࡟㸪ࡇࡇ࡛ሗ࿌ࡋࡓᡓ␎ⓗ࡞⥔ᣢ⟶⌮ィ⏬ࡢ ⟇ᐃ࡟࠾ࡅࡿ᮲௳タᐃ➼ࡣ㸪㕲㐨ᵓ㐀≀࡟㝈ࡽࡎ㸪 ᵝࠎ࡞ᵓ㐀≀࡟ᑐࡋ࡚ࡶά⏝࡛ࡁ㸪௒ᚋ㸪ᆅ᪉බඹ ᅋయ࡞࡝ࡶྵࡵࡓ⟶⌮⪅ഃࡢ⥔ᣢ⟶⌮࡟㛵ࢃࡿᢏ⾡ ⪅࡟࡜ࡗ࡚ࡶ᭷⏝࡞᝟ሗ࡟࡞ࢀࡤᖾ࠸࡛࠶ࡿࠋ ㅰ㎡  ᮏሗࡣ㸪ᮾிᛴ⾜㟁㕲ᰴ(ᰴ)㕲㐨஦ᴗ㒊 ᕤົ㒊 ᅵᮌㄢ࠿ࡽࡢཷクᴗົ࡜ࡋ࡚ᐇ᪋ࡋࡓ㕲㐨ᵓ㐀≀ࡢ㛗ᑑ࿨໬᳨ウᴗົࡢෆᐜࢆྲྀࡾ ࡲ࡜ࡵࡓࡶࡢ࡛࠶ࡾ㸪㤳㒔ᅪᅵᮌᨭᗑ 㕲㐨ᕤ஦㒊 Ꮫⱁ኱Ꮫ⥲ྜ஦ົᡤࡢ㛵ಀ⪅ࡢࡈ༠ຊࢆ㡬࠸ࡓࠋࡇࡇ࡟グࡋ࡚ㅰពࢆ⾲ࡍࠋ  ཧ⪃ᩥ⊩ 1) ᅜᅵ஺㏻┬㸸ᅜᅵ஺㏻┬࢖ࣥࣇࣛ㛗ᑑ࿨໬ィ⏬㸦⾜ືィ⏬㸧ᖹᡂ 26 ᖺᗘ㹼ᖹᡂ 32 ᖺᗘ, 2014.5 2) ᅵᮌᏛ఍㸸2007 ᖺไᐃࢥࣥࢡ࣮ࣜࢺᶆ‽♧᪉᭩࠙⥔ᣢ⟶⌮⦅ࠚ㸪2008.3 3) ᅵᮌᏛ఍㸸2013 ᖺไᐃࢥࣥࢡ࣮ࣜࢺᶆ‽♧᪉᭩࠙⥔ᣢ⟶⌮⦅ࠚ㸪2013.10 4) ♫఍㈨ᮏᩚഛᑂ㆟఍࣭஺㏻ᨻ⟇ᑂ㆟఍㸸௒ᚋࡢ♫఍㈨ᮏࡢ⥔ᣢ⟶⌮࣭᭦᪂ࡢ࠶ࡾ᪉࡟ࡘ࠸࡚ ⟅⏦㸪2013.12 5) 㕲㐨⥲ྜᢏ⾡◊✲ᡤ㸸㕲㐨ᵓ㐀≀➼⥔ᣢ⟶⌮ᶆ‽࣭ྠゎㄝ㸦ᵓ㐀≀⦅㸧ࢥࣥࢡ࣮ࣜࢺᵓ㐀≀㸪2007.1 6) ᘅ⏣Ⰻ㍜࡯࠿㸸㕲㐨ᅵᮌᵓ㐀≀ࡢ⪏ஂᛶ㸪ᒣᾏᇽ㸪2002.8 7) (⊂)ᅵᮌ◊✲ᡤ⥔ᣢ⟶⌮ᮏ㒊ᵓ㐀≀࣐ࢿࢪ࣓ࣥࢺᢏ⾡ࢳ࣮࣒㸪᪥ᮏᵓ㐀≀デ᩿༠఍㸸ࢥࣥࢡ࣮ࣜࢺᵓ㐀≀ࡢ㕲➽⭉㣗デ᩿ᢏ⾡࡟㛵ࡍ ࡿඹྠ◊✲ሗ࿌᭩㸫㟁☢ㄏᑟἲ࣭㟁☢Ἴ཯ᑕἲ࡟ࡼࡿ㕲➽఩⨨࡟ࡼࡿ㕲➽఩⨨࠾ࡼࡧ࠿ࡪࡾࡢ ᐃ㸫㸪2003.3 8) 㔝ཱྀ㈗ᩥ㸸㕲➽ࢥࣥࢡ࣮ࣜࢺ㐀ᘓ⠏≀ࡢᛶ⬟᳨ドᆺ⪏ஂタィ㸪᪥ᮏࢥࣥࢡ࣮ࣜࢺᕤᏛ༠఍㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛ㸪Vol.40㸪No.5㸪2002.5 9) ᮾி኱Ꮫ⏕⏘ᢏ⾡◊✲ᡤ㸸ຎ໬ࡋࡓࢥࣥࢡ࣮ࣜࢺᵓ㐀≀ࡢ⿵ಟᕤἲ࡟㛵ࡍࡿඹྠ◊✲㸪2007.3 10) ᪥ᮏ㐨㊰බᅋヨ㦂◊✲ᡤ㸸㗰ᶫࡢሬ᭰ሬ⿦࣐ࢽࣗ࢔ࣝ㸦⥔ᣢ⟶⌮ಟ⧋せ㡿(ᨵᐃ)➼ࡢゎㄝ㸧㸪1994.4 

DEVELOPMENT OF THE STRATEGIC MAINTENANCE PLAN OF THE RAILWAY STRUCTURE

M.Ito and M.Suzuki

In this study, we estimated the life cycle cost (LCC) of 200 years including a cost of inspection and repair. And, on the occasion of an evaluation of LCC, it was necessary to set the state of the limit of the maintenance not to become worthless as a structure. Furthermore, the priority of the repair was decided in consideration of an inspection result.

As a result, when it was repaired before degradation progressed, the cost became lowest. In addition, we included a material cost and personnel expenses in a calculation of LCC, and the method of the strategic maintenance becomes clear.

参照

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