U.D.C 624.131.55
㌾ᙅᆅ┙࠾ࡅࡿᘓタᕤ୰ࡢᆅ┙ື㛵ࡍࡿศᯒ
୰ἑ ᴁኴ
㸨ୖ Ύ
㸨㸨㇏ᔱ Ꮫ
㸨㸨㸨℩ᡞᒣ㍤
㸨㸨㸨㸨 せ ⣙㸸 㒔ᕷ㒊࠾ࡅࡿᘓタᕤ㸦᪤Ꮡᘓ≀ࡢゎయ࣭᪂⠏ᕤ㸧࡛ࡣ㸪㏆㞄ᘓ≀㔜ᶵసᴗࡼࡿᆅ┙ືࡀఏᦙࡋ࡚ᝏᙳ㡪ࢆཬࡰ ࡍࡇࡀ࠶ࡿࠋ≉㸪㌾ᙅᆅ┙ࡢሙྜࡣ㸪ᆅ┙ືࡀࡁࡃ࡞ࡾ㸪ᗈ⠊ᅖఏᦙࡍࡿࡇࡀᠱᛕࡉࢀࡿࡀ㸪㔜ᶵసᴗࡼࡿ ᆅ┙ືࢆ㐃⥆ⓗィ ࡋࡓࡣᑡ࡞࠸ࠋᮏሗ࡛ࡣ㸪㌾ᙅᆅ┙⨨ࡍࡿ᪤Ꮡᘓ≀ࡢゎయࡽ᪂⠏ᘓ≀ࡢᵓ⠏⮳ࡿࡲ࡛㸪 ᩜᆅቃ⏺ࡢᆅ⾲㠃࡛ᆅ┙ືࢆ㐃⥆ⓗィ ࡋ㸪ᕤᕤ⛬ẖᆅ┙ືࡢⓎ⏕ࣞ࣋ࣝࢆศᯒࡋࡓࠋࡑࡢ⤖ᯝ㸪ᆅ⾲㠃ࣞ࣋ࣝࡶ ࡋࡃࡣࡑࢀࡼࡾࡶୗ᪉࡛ࣞ࣋ࣝ㔜ᶵసᴗࢆ⾜࠺ሙྜ㸪≉ᆅ┙ືࡀࡁࡃ࡞ࡿࡇࢆ☜ㄆࡋࡓࠋ୍᪉㸪᪂⠏㌣యᵓ⠏ ࡣ㸪ࢥࣥࢡ࣮ࣜࢺࡢᡴタࢆ㝖࠸࡚㸪ᆅ┙ືࡣᑠࡉ࠸ࡇࢆ☜ㄆࡋࡓࠋࡲࡓ㸪ᆅ┙ືࡢ㊥㞳ῶ⾶㔞ࡘ࠸࡚⌮ㄽᘧࡽồࡲ ࡿ್ᐇ ್ࢆẚ㍑ࡋ㸪᪤Ꮡᆅୗ㌣యࡀṧ⨨ࡍࡿ≧ἣ࠾࠸࡚ࡶ⌮ㄽᘧࢆ⏝࠸࡚ᆅ┙ືࡢ㊥㞳ῶ⾶㔞ࢆᴫࡡ᥎ᐹ࡛ࡁࡿࡇ ࢆ☜ㄆࡋࡓࠋ 㺕㺎㺺㺎㺢㺼㸸 ᆅ┙ື㸪㌾ᙅᆅ┙㸪⌧ሙィ ┠ ḟ㸸 ࡣࡌࡵ ィ ⤖ᯝ ᆅ┙࠾ࡼࡧᕤࡢᴫせ ᕤᕤ⛬ẖࡢⓎ⏕ᆅ┙ືࡢศᯒ ィ ᴫせ ࡲࡵ ࡣࡌࡵ ㏆ᖺ㸪㒔ᕷ㒊࠾࠸࡚᪤Ꮡᘓ≀ࡢゎయࢆక࠺᪂⠏ᕤ ࡀቑ࠼࡚࠸ࡿࠋࡇࡢࡼ࠺࡞ᕤ࡛ࡣ㸪ఫᏯࡸ⢭ᐦᶵ Ეࢆᢅ࠺タ࡞ࡢ㏆㞄ᘓ≀㔜ᶵసᴗࡼࡿᆅ┙ ືࡀఏᦙࡋ࡚ᝏᙳ㡪ࢆཬࡰࡍࡇࡀ࠶ࡿࠋ≉㸪㌾ᙅ ᆅ┙ࡢሙྜࡣ㸪ᆅ┙ືࡀࡁࡃ࡞ࡾ㸪ᗈ⠊ᅖఏ ᦙࡍࡿࡇࡀᠱᛕࡉࢀࡿࠋࡋࡋ࡞ࡀࡽ㸪ᘓタᆅࡼ ࡗ࡚ᆅ┙✀ูࡣᵝࠎ࡛࠶ࡾ㸪ࡘ㸪㏆㞄ᘓ≀ࡣᇶ♏ᙧ ᘧࡸᆅୗᐊࡢ᭷↓࡞ከ✀ከᵝ࡛࠶ࡿࡇࡽ㸪㔜ᶵ సᴗࡼࡿᆅ┙ࡢື≉ᛶࢆ๓ホ౯ࡍࡿࡇࡣᐜ ࡛᫆ࡣ࡞࠸ࠋࡲࡓ㸪㔜ᶵసᴗࡼࡿᆅ┙ືࡢ㐃⥆ⓗ ࡞ィ ࡶᑡ࡞࠸ࠋ ᮏሗ࡛ࡣ㸪㌾ᙅᆅ┙⨨ࡍࡿ᪤Ꮡᘓ≀ࡢゎయ࠾ࡼ ࡧ᪂⠏ᕤ࠾࠸࡚㸪ᕤ⟶⌮ࡢࡓࡵᆅ┙ືࢆ㐃 ⥆ⓗィ ࡋ㸪ࡑࡢ⤖ᯝࡽྛᕤᕤ⛬࠾ࡅࡿᆅ┙ ືࡢⓎ⏕ࣞ࣋ࣝࢆศᯒ࣭ホ౯ࡋࡓࠋ ᘓ⠏ᮏ㒊ᢏ⾡㒊ᇶ♏ᢏ⾡ * ᢏ⾡◊✲ᡤ ᘓ⠏ᮏ㒊ᢏ⾡㒊ືᢏ⾡ * ᅗ㸯 ᕤᖹ㠃ᅗ Bor.1 ᪂⠏ᮺ ᪤Ꮡᘓ≀ ᪤Ꮡᮺ 㸦ᆅ┙᥀๐᧔ཤ㸧 㸦᪂⠏ᮺᡴタ๓ᘬᢤࡁ㸧᪤Ꮡᮺ ࢯࣝࢭ࣓ࣥࢺቨ 㸦H-500200@900㸧 ࢯࣝࢭ࣓ࣥࢺቨ 㸦H-300150@900㸧 ࢯࣝࢭ࣓ࣥࢺቨ 㸦H-500200@900㸧 Ⅼ A Ⅼ B ࢱࣟࢵࢻ ఫᏯᆅ ఫ Ꮿ ᆅ A ⣙ 54m ⣙ 39 m ᪂⠏ᮺ 1 ᪂⠏ᮺ 2 ぶᮺᶓ▮ᯈ 㸦H-400200@1200㸧 す㠃 ᮾ㠃 㠃 ϩ Ϩ B B * 建築本部 技術部 基礎技術 G ** 技術研究所 *** 建築本部 技術部 振動技術 G **** 建築本部 技術部 音響・電磁環境 G U.D.C 624.131.55軟弱地盤における建設工事中の地盤振動に関する分析
中沢 楓太
＊沼上 清
＊＊豊嶋 学
＊＊＊瀬戸山春輝
＊＊＊＊ᆅ┙࠾ࡼࡧᕤࡢᴫせ ᅗ㸯ᕤᖹ㠃ࢆ♧ࡋ㸪ᅗ㸰᩿㠃࠾ࡼࡧ Bor.1 ࡢ ᆅᒙᵓᡂࢆ♧ࡍࠋ ᘓタᆅࡣከᦶᕝࡢἈ✚పᆅ⨨ࡋ㸪ᆅᒙࡣᇙᅵ௨ ῝Ἀ✚⢓ᛶᅵᒙ㸪♟ᒙ㸪ୖ⥲ᒙ⩌ᅵᒙࡢ㡰ሁ✚ ࡋ࡚࠸ࡿࠋ⾲㸯ࡣ㸪Bor.1 ㏆ഐ࡛ヨ᥀ㄪᰝࡋࡓ㝿ࡢࣈ ࣟࢵࢡࢧࣥࣉࣜࣥࢢヨᩱᑐࡍࡿᐊෆヨ㦂⤖ᯝࢆ♧ࡍࠋ GL-4.0m ㏆ࡢ⢓ᛶᅵᒙࡢ୍㍈ᅽ⦰ᙉࡉ quࡣ⣙ 40㹼 70kN/m2࡛࠶ࡾ㸪ࣖࣥࢢ⋡ E50ࡣ⣙ 3.7㹼7.7MN/m2࡛࠶ ࡿࠋ ᕤࡣ᪤Ꮡᘓ≀ࡢゎయࢆక࠺Ꮫᰯタࡢᘓ᭰ᕤ࡛ ࠶ࡾ㸪࿘ᅖࡣఫᏯᆅ࡛࠶ࡿࠋ᪤Ꮡᘓ≀ࡣᆅୖ 7 㝵ᆅୗ 1 㝵㸦RC 㐀㸧࡛ȭ350 ࡢ PC ᮺ㸦௨ୗ㸪᪤Ꮡᮺ㸧࡛◁ ♟ᒙᨭᣢࡉࢀ㸪᪂⠏ᘓ≀ࡣᆅୖ 4 㝵ᆅୗ 1 㝵㸦RC 㐀㸧࣭ȭ1600 ࡢሙᡤᡴࡕࢥࣥࢡ࣮ࣜࢺᮺ㸦࣮ࢫࢻࣜ ࣝᣑᗏᮺ㸸௨ୗ㸪᪂⠏ᮺ㸧࡛ᅵᒙࢆඛ➃ᨭᣢᒙࡋ ࡚タィࡉࢀ࡚࠸ࡿࠋࡲࡎ㸪ᆅୖ㌣యࢆゎయࡋ࡚ᒣ␃ࡵ ቨ㸦ࢯࣝࢭ࣓ࣥࢺቨ㸧ࢆᕤࡋ㸪ᆅୗ㌣యࢆゎయࡋ ࡚᪤Ꮡᮺࢆᘬᢤࡃࠋࡑࡢᚋ㸪ษᱱࢆᯫタࡋ࡞ࡀࡽᆅ┙ ࢆ᥀๐ࡋ㸪ᇶ♏㌣య㸦⪏ᅽ∧㸧ࡽ㡰ḟ㌣యࢆᵓ⠏ࡍ ࡿࠋ᪤Ꮡᘓ≀ࡢゎయࡣ㝵ୖゎయᕤἲࡋ㸪ᆅୖ࠾ࡼࡧ ᆅୗゎయඹ 0.7m3ࡢࢡࣛࢵࢩ࣮ࣕ㔜ᶵࢆ 2 ྎ⏝ࡋ ࡓࠋゎయ࢞ࣛࡣ 1 㝵㓄⨨ࡋࡓ 0.45m3ࡢࢡࣛࢵࢩ࣮ࣕ 㔜ᶵ㸦1 ྎ㸧࡛ᑠࡋ࡚ᦙฟࡋࡓࠋ᪤Ꮡᮺࡣ㸪ࢣ࣮ ࢩࣥࢢ࣮࣮࢜࢞ᕤἲࡼࡗ࡚᪂⠏ᮺᖸ΅ࡍࡿࡶࡢࡢ ࡳࢆ᪂⠏ᮺࡢᕤ๓ᘬᢤࡁ㸪ࡑࡢࡣᆅ┙᥀๐ ᧔ ཤ ࡋ ࡓ ࠋ ࡞ ࠾ 㸪 㔜 ᶵ స ᴗ ࡣ 㸪 ᴫ ࡡ 8:30~10:00 㸪 10:30㹼12:00㸪13:00㹼15:00 ࠾ࡼࡧ 15:30㹼17:00 ᐇ ࡋ࡚࠸ࡿࠋ ィ ᴫせ ᆅ┙ືࡣ㸪ᅗ㸯♧ࡍ Ⅼ A ࠾ࡼࡧ Ⅼ B ࡛㸪 ᕤ⟶⌮ࢆ┠ⓗࡋ࡚ఫᏯᆅ㞄᥋ࡍࡿᩜᆅቃ⏺ୖࡢᆅ ⾲㠃ືຍ㏿ᗘࣆࢵࢡࢵࣉࢆタ⨨ࡋ࡚㐃⥆ⓗィ ࡋࡓࠋ ᅗ㸱㸪ᮏ⌧ሙ࡛㐠⏝ࡋࡓィ ⟶⌮ࢩࢫࢸ࣒ࢆ♧ࡍࠋ WEB ୖࡢᑓ⏝࣮࣌ࢪࡼࡾ㜀ぴ࡛ࡁࡿࡼ࠺ࡍࡿࡇ࡛㸪 ⌧ሙົᡤ௨እࡽࡶࣜࣝࢱ࣒⟶⌮࡛ࡁࡿࢩࢫ ࢸ࣒ࢆᵓ⠏ࡋࡓࠋ ࡞࠾㸪ᆅ┙ືࡣ 3 ᡂศ㸦㖄┤ 1㸪Ỉᖹ 2㸧ࢆィ ࡋ ࡓࡀ㸪ᮏሗ࡛ࡣ㖄┤᪉ྥࡢ 10 ศẖグ㘓ࡋࡓ L10㸦 㛫⋡ືࣞ࣋ࣝ㸧ࢆ♧ࡍࠋ ィ ⤖ᯝ ᅗ㸲㸪ᕤᕤ⛬ඹ 0 㸪12 30 ศ࠾ࡼࡧ 14 ࠾ࡅࡿᆅ┙ືࡢ⤒ኚࢆ♧ࡍࠋ0 ࠾ࡼࡧ 12 30 ศࡣ㸪ࡑࢀࡒࢀࡢ㛫ᖏࡢ⏕άື㸦ᬯື㸧ࢆ ♧ࡍࠋࡲࡓ㸪14 ࡣ㸪㔜ᶵసᴗࢆ⾜ࡗ࡚࠸ࡿ㛫ᖏ࡛ ࠶ࡿࠋ ᅗ㸰 ᩿㠃ᅗ㸦A ᩿㠃㸧࠾ࡼࡧᆅᒙᵓᡂ ۃGL-6.7m ۃGLs0m ۃGL-2.5m ᪂⠏㌣య ᅵ㉁ ᇙᅵ ࢩࣝࢺ㉁ ⢓ᅵ ⢓ᅵ ࢩࣝࢺ㉁ ⢓ᅵ ◁♟ ᅵ 0 50 N್ -2m -4m -6m -8m -10m -12m -14m -16m ᪤Ꮡ㌣య ᐊෆヨ㦂 ᐇ῝ᗘ ⾲㸯 ヨ᥀ㄪᰝ⤖ᯝ ᅗ㸱 ィ ⟶⌮ࢩࢫࢸ࣒ࡢᴫせ 㸦ࢭ࢟ࣗࣜࢸࡁ㸧 ᑓ⏝ィ ჾ እ㒊ࣔࢽࢱ ືࣆࢵࢡࢵࣉ ࡑࡢࡢ⎔ቃ ᐃჾ :(% ୖࡢ ᑓ⏝ +3 ࣮ࣝࢱ ࣮ࣝࢱ ࣥࢱ࣮ࢿࢵࢺ ᅇ⥺ እ㒊ࡢᑓ⏝ 3& බ㛤 ῝ᗘ GL-2.00m GL-3.00m ᅵ ㉁ ᭷ ᶵ ㉁ ࢩ ࣝ ࢺ ᭷ ᶵ ㉁ ࢩ ࣝ ࢺ ᅵ ࡢ ᙉ ⇕ ῶ 㔞 Li㸦 %㸧 12.9 13.0 ‵ ₶ ᐦ ᗘ ȡt 㸦 g/cm3 㸧 1.44 䠉 48.2 ᖹ ᆒ 69.8 ᖹ ᆒ 40.7 44.4 46.6 58.2 3.68 ᖹ ᆒ 7.66 ᖹ ᆒ 3.93 3.80 4.95 6.30 ୍ ㍈ ᅽ ⦰ ᙉ ࡉ qu 㸦 kN/m2 㸧 ࣖ ࣥ ࢢ ⋡ E50 㸦 MN/m2 㸧 䠉 䠉 䠉 䠉 GL-3.80m ᭷ ᶵ ㉁ ⢓ ᅵ 20.0 1.38 GL-4.00m ⢓ ᅵ 17.1 1.24
ఇ᠁୰࡛㔜ᶵసᴗࢆ⾜ࡗ࡚࠸࡞࠸ 12 30 ศࡢᆅ ┙ືࡣ㸪୧ Ⅼࡶ 30dB ⛬ᗘ୍࡛ᐃ᥎⛣ࡋ࡚࠾ ࡾ㸪0 ࡼࡾࡶ 10dB ⛬ᗘࡁ࠸ࠋࡇࢀࡼࡾ㸪ᕤ୰ࡢ 㛫ࡢ⏕άືࡣᖺ㛫ࢆ㏻ࡋ࡚ 30dB ⛬ᗘุ᩿࡛ࡁࡿࠋ ୍᪉㸪㔜ᶵసᴗ୰ࡢ 14 ࡢᆅ┙ືࡣ㸪ᴫࡡ 30dB ࡼࡾࡶࡁ࠸ࠋࡇࡢࡇࡽ㸪㔜ᶵసᴗࡼࡗ࡚ᆅ┙ ືࡀቑࡋ࡚࠸ࡿࡇࡀ☜ㄆ࡛ࡁࡿࠋࡲࡓ㸪᪂⠏㌣ యᵓ⠏୰୍ⓗ᪤Ꮡᘓ≀ゎయྠ⛬ᗘ㸦40㹼 50dB㸧ࡢᆅ┙ືࡀⓎ⏕ࡋ࡚࠸ࡿࠋࡇࢀࡣ㸪ࢥࣥࢡࣜ ࣮ࢺࡢᡴタ᪥୍⮴ࡋ࡚࠾ࡾ㸪ࡑࡢᙳ㡪ุ᩿࡛ࡁࡿࠋ ᅗ㸳ࡣ㸪ྛᕤᕤ⛬ࡢ௦⾲ⓗ࡞᪥ኚືࢆ♧ࡍࠋ యⓗ Ⅼ A ࡢᆅ┙ືࡢ᪉ࡀᑠࡉ࠸ഴྥ࡛࠶ࡿࡀ㸪 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 7:00 9:00 11:00 13:00 15:00 17:00 19:00 ᆅ┙ື㸦 dB 㸧 0 10 20 30 40 50 60 12/6/1 12/8/1 12/10/1 12/12/1 13/1/31 13/4/2 13/6/2 13/8/2 13/10/2 0 10 20 30 40 50 60 㸦㸯㸧ᕤᕤ⛬ ᆅ┙ື 㸦 dB 㸧 ᆅ┙ື 㸦 dB 㸧 㸦㸰㸧0 ࠾ࡼࡧ 12 30 ศ ᅗ㸲 ᆅ┙ືࡢ⤒ኚ㸦≉ᐃ้ࡢ್ࢆᢳฟ㸧 Ⅼ B㸦12㸸30㸧 Ⅼ B Ⅼ A Ⅼ A㸦12㸸30㸧 Ⅼ A㸦0㸸00㸧 Ⅼ B㸦0㸸00㸧 㸦㸱㸧14 ᆅୖゎయ RF 1F 㺝㺐㺷㺜㺰㺻㺢ቨ ぶᮺ B1F ᇶ♏ ᮺᘬᢤࡁ ᪂⠏ᮺᡴタ ᮺ㢌○ࡾ 1ḟ 2ḟ ᆅ┙᥀๐ ᆅୗ㌣యᵓ⠏ ᆅୖ㌣యᵓ⠏ ษᱱᯫタ ษᱱゎయ ᅗ㸳 ᆅ┙ືࡢ᪥ኚື 㸦㸱㸧B1F ㌣యゎయ 㸦㸲㸧ᇶ♏⪏ᅽ∧ゎయ 㸦㸳㸧᪤Ꮡᮺᘬᢤࡁ 㸦㸴㸧2 ḟ᥀๐ 㸦㸵㸧⪏ᅽ∧ CON ᡴタ 㸦㸶㸧B1F 㓄➽࣭ᆺᯟ⤌ Ⅼ A Ⅼ A Ⅼ A Ⅼ A Ⅼ A Ⅼ B Ⅼ B Ⅼ B Ⅼ B Ⅼ B Ⅼ B Ⅼ A 㸦㸯㸧7F ㌣యゎయ 㸦㸰㸧2F ㌣యゎయ Ⅼ A Ⅼ B Ⅼ A Ⅼ B
B Ⅼࡢᕪ␗ࡣᑠࡉ࠸ࠋ㌣యゎయ㸦ྠᅗ㸦㸯㸧㹼 㸦㸲㸧㸧ࡣ㸪㔜ᶵసᴗࡼࡗ࡚㐃⥆ⓗᆅ┙ືࡀ ࡁࡃ࡞ࡗ࡚࠸ࡿࠋ᪤Ꮡᮺࡢᘬᢤࡁ㸦ྠᅗ㸦㸳㸧㸧ࡸᆅ ┙᥀๐㸦ྠᅗ㸦㸴㸧㸧ࡣ㸪㌣యゎయẚ㍑ࡍࡿ 㐃⥆ⓗᆅ┙ືࡀࡁࡃ࡞ࡿഴྥࡣ࡞࠸ࡀ㸪㔜ᶵస ᴗࡼࡗ࡚ᆅ┙ືࡀࡁࡃ࡞ࡗ࡚࠸ࡿࠋࡲࡓ㸪⪏ᅽ ∧ࡢࢥࣥࢡ࣮ࣜࢺᡴタ㸦ྠᅗ㸦㸵㸧㸧ࡶᆅ┙ືࡀ ࡁࡃ࡞ࡗ࡚࠸ࡿࠋࡇࢀࡽᑐࡋ࡚㸪㔜ᶵసᴗࡀᑡ࡞ ࠸㓄➽࣭ᆺᯟ⤌㸦ྠᅗ㸦㸶㸧㸧ࡣ㸪㛫ࡢ⏕άື ྠ⛬ᗘࡢᆅ┙ືࡋⓎ⏕ࡋ࡚࠸࡞࠸ࠋ ᕤᕤ⛬ẖࡢⓎ⏕ᆅ┙ືࡢศᯒ ᕤᕤ⛬ẖࡢศᯒ ᅗ㸴ࡣ㸪ᕤ⛬ẖᆅ┙ືࡢቑศ್㸦᪥ࠎࡢఇ᠁୰ ࡢ 12:30 ࢆᇶ‽㸦=0㸧ࡋࡓ್㸸⣙ 30dB㸧ࢆᖹᆒ 㸦13:40㹼14:50 ࢆᑐ㇟㸧ࡋࡓࡶࡢ࡛࠶ࡿࠋ࡞࠾㸪」ᩘ ࡢసᴗࢆ⾜ࡗ࡚࠸ࡿᮇࡣྠᖹᆒ್⟬ฟࡢᑐ㇟ࡋ࡚ ࠸࡞࠸ࠋ ୖᒙ㒊ࡢゎయᕤ╔┠ࡍࡿ㸪RF ࡽ 5F ゎయ ࡢቑศᆅ┙ືࡣゎయࣇࣟࡀపࡃ࡞ࡿᑠࡉ࠸ࠋ 㝵ୖゎయᕤἲࡢሙྜ㸪ゎయᕤࡼࡗ࡚Ⓨ⏕ࡋࡓࢥࣥ ࢡ࣮ࣜࢺ࢞ࣛࢆᘓ≀ෆࡢ⦪✰ࢆ⏝ࡋ࡚ゎయࣇࣟ ࡽ 1F ࡲ࡛ⴠୗࡉࡏࡿࡓࡵ㸪ⴠୗ㧗ࡉࡢኚࡀᙳ㡪ࡋ࡚㸪 ࡇࡢࡼ࠺࡞ഴྥࢆ♧ࡋࡓࡶࡢ᥎ᐹࡉࢀࡿࠋ ᆅ⾲㠃㏆ࡢ᪤Ꮡ㌣యゎయ╔┠ࡍࡿ㸪ᆅ⾲㠃 ࡛㔜ᶵࡀືࡃ 1F ゎయ࠾ࡅࡿᆅ┙ືࡢቑศࡣ㸪 㝵ୖゎయ࡞ࡿ 2F ゎయࡼࡾࡶࡁ࠸ࠋࡲࡓ㸪ᇶ♏⪏ ᅽ∧ゎయ࠾ࡅࡿᆅ┙ືࡢቑศࡣ㸪1F ࡸ B1F ゎయ ࡼࡾࡶࡁࡃ㸪ᕤ⛬࠾࠸࡚᭱ࡶࡁ࠸ࠋࡍ࡞ࢃ ࡕ㸪ࢥࣥࢡ࣮ࣜࢺ࢞ࣛࡢⴠୗ㧗ࡉࡀ㧗࠸ሙྜຍ࠼࡚㸪 㔜ᶵࡀᆅ⾲㠃ࡶࡋࡃࡣࡑࢀࡼࡾࡶୗ᪉࡛ࣞ࣋ࣝసᴗࡍ ࡿሙྜࡣ㸪≉ᆅ┙ືࡀࡁࡃ࡞ࡿഴྥࢆ♧ࡋ࡚ ࠸ࡿࠋ࡞࠾㸪B1F ゎయ࠾ࡅࡿᆅ┙ືࡢቑศࡣ 1F ゎయࡼࡾࡶࡸࡸᑠࡉ࠸ࡀ㸪ࡇࢀࡣࡇࡢ୧ᕤ⛬ࡢ㛫 ᵓ⠏ࡋࡓᒣ␃ࡵቨࡀᆅ┙ືࡢఏᦙࢆᢚไࡋࡓྍ⬟ᛶ ࡀ࠶ࡿ⪃࠼ࡽࢀࡿࠋࡲࡓ㸪ᆅ⾲㠃ࡼࡾࡶୗ᪉࡛ࡢస ᴗ࡞ࡿ᪤Ꮡᮺᘬᢤࡁ࠾ࡅࡿᆅ┙ືࡢቑศࡣ㸪 ᇶ♏⪏ᅽ∧ゎయࡼࡾࡶ 10dB ⛬ᗘᑠࡉ࠸ࠋࡇࢀࡣࢣ࣮ ࢩࣥࢢ࣮࣮࢜࢞ࡼࡗ࡚᪤Ꮡᮺᆅ┙ࡢ⦕ࢆษࡗࡓᚋ ᪤Ꮡᮺࢆᘬᢤ࠸ࡓࡓࡵ⪃࠼ࡽࢀࡿࠋ ᆅ┙ࢆ๐Ꮝࡍࡿࢯࣝࢭ࣓ࣥࢺቨᵓ⠏࠾ࡼࡧᮺ ᕤ࠾ࡅࡿᆅ┙ືࡢቑศࡣ㸪ᮺᘬᢤࡁྠ⛬ᗘ ࡛࠶ࡿࠋ๐Ꮝ㛗ࡸ๐Ꮝᚄ㸪๐Ꮝ᪉ἲࡀ␗࡞ࡿࡶ ࢃࡽࡎᆅ┙ືࡢቑศࡁ࡞ᕪ␗ࡀ࡞࠸ࡇࡽ㸪 ᆅ┙ືࡢ࡞Ⓨ⏕※ࡣ㔜ᶵࡢタ⨨⨨㸦ሙᡤ㸧ࡑࡢ ࡶࡢ⪃࠼ࡽࢀࡿࠋ ᪂⠏㌣యᵓ⠏╔┠ࡍࡿ㸪ࢥࣥࢡ࣮ࣜࢺᡴタ ࠾ࡅࡿᆅ┙ືࡢቑศࡣ㸪㔜ᶵసᴗࡀᑡ࡞࠸㓄➽➼ ࡢసᴗࡼࡾࡶࡁࡃ㸪1F ゎయྠ⛬ᗘ࡛࠶ࡿࠋᅗ 㸵㸪ྛࢥࣥࢡ࣮ࣜࢺᡴタࡢቑศᆅ┙ືࢆᡴタ㒊 ẖࡲࡵ࡚♧ࡍࠋ༡ഃᕤ༊࠾ࡼࡧഃᕤ༊ࡢࢥࣥ ࢡ࣮ࣜࢺᡴタ࠾࠸࡚ࡶ㸪 Ⅼ A ࡼࡾࡶ Ⅼ B ࡢ᪉ ࡀቑศᆅ┙ືࡣࡁ࠸ഴྥ࠶ࡿࡀ㸪ᖹᆒⓗぢࡿ 0 5 10 15 20 25 ⪏ ᅽ ∧ ࣆ ࢵ ࢺ ❧ ୖ ࡾ B 1 F ❧ ୖ ࡾ 1 F ❧ ୖ ࡾ 2 F ❧ ୖ ࡾ 3 F ❧ ୖ ࡾ 4 F ❧ ୖ ࡾ ቑศᆅ┙ື㸦 dB 㸧 ⅬA ⅬB ⅬA ⅬB ᖹᆒ 0 5 10 15 20 25 R F ゎ య 7 F ゎ య 6 F ゎ య 5 F ゎ య 4 F ゎ య 3 F ゎ య 2 F ゎ య 1 F ゎ య B 1 F ゎ య ᇶ ♏ ⪏ ᅽ ∧ ゎ య ᮺ ᘬ ᢤ ࡁ ࢯ ࣝ ࢭ ࣓ ࣥ ࢺ ቨ ᵓ ⠏ ᮺ ᕤ 1 ḟ ᥀ ๐ 2 ḟ ᥀ ๐ ᮺ 㢌 ○ ࡾ 㓄 ➽ ➼ C O N ᡴ タ 㓄 ➽ ➼ C O N ᡴ タ ቑศᆅ┙ ື㸦 dB 㸧 ⅬA ⅬB ⅬA ⅬBࡢᖹᆒ ᅗ㸴 ᕤᕤ⛬ẖࡢᖹᆒቑศᆅ┙ື ᪤Ꮡᘓ≀ゎయᕤ ᆅ┙᥀๐ ᪂⠏㌣యᵓ⠏ ᆅୖ ᆅୗ ᅗ㸵 ࢥࣥࢡ࣮ࣜࢺᡴタࡢᖹᆒቑศᆅ┙ື ༡ഃᕤ༊ᕤ ഃᕤ༊ᕤ ͤ㸸 ᐃ࢚࣮ࣛ
㸪ᡴタ㒊ࡢ㐪࠸㸪ࡲࡓ㸪ᆅୖᕤᆅୗᕤࡢ㐪 ࠸࡛᫂☜࡞ᕪ␗ࡣ࡞࠸ࠋࡇࢀࡣ㸪୧ᕤࡶ࣏ࣥࣉ ᅽ㏦㌴ࢆᆅ⾲㠃㓄⨨ࡋ㸪ࢥࣥࢡ࣮ࣜࢺ࣑࢟ࢧ࣮㌴ ࡽࢥࣥࢡ࣮ࣜࢺࢆᡴタࡋࡓࡓࡵ⪃࠼ࡽࢀࡿࠋ ࢯࣝࢭ࣓ࣥࢺቨᕤࡢศᯒ ᅗ㸶ࡣ㸪ࢯࣝࢭ࣓ࣥࢺቨᕤ࠾ࡅࡿᅗ㸴ྠ ᵝᩚ⌮ࡋࡓᖹᆒቑศᆅ┙ືࡢ᥎⛣࡛࠶ࡿࠋ ᮾ㠃ࡽ㠃ࡢᮾഃᕤࡣᆅ┙ືࡢቑศࡣ Ⅼ A ࡢ᪉ࡀ 7㹼10dB ⛬ᗘࡁ࠸ࠋࡲࡓ㸪す㠃ࡢ༡ഃ ᕤࡣᆅ┙ືࡢቑศࡣ Ⅼ B ࡢ᪉ࡀ 14㹼22dB ⛬ ᗘࡁ࠸ࠋࡇࢀࡽࡼࡾ㸪ᴫࡡ㔜ᶵࡀィ Ⅼ㏆࠸ ᆅ┙ືࡀࡁ࠸ࡇࡀ☜ㄆ࡛ࡁࡿࠋ ࡇࡇ࡛㸪ᆅ┙ືࡢ㊥㞳ῶ⾶㔞㛵ࡍࡿ⌮ㄽᘧྛ Ⅼ࡛ᐇ ࡉࢀࡓᆅ┙ືࡢᕪศࢆẚ㍑ࡋ㸪ᩜᆅෆࡢ ᆅ┙ືࡢ㊥㞳ῶ⾶㔞ࢆ⡆᫆ࣔࢹ࡛ࣝࡁࡿࢆ᳨ ドࡍࡿࠋ ௨ୗ㸪⾲㠃ἼᐇయἼࡢ」ྜἼ⪃࠼ࡓሙྜࡢᆅ ┙ືࡢῶ⾶㔞㸦ᗄఱῶ⾶㸧㹙ᘧ㸦㸯㸧㹛ᅵ㉁ࡼࡿ ᆅ┙ືࡢῶ⾶㔞㸦ෆ㒊ῶ⾶㸧㹙ᘧ㸦㸰㸧㹛ࢆ⟬ฟࡍࡿ ⌮ㄽᘧࢆ♧ࡍࠋ୍⯡ⓗࡣ㸪⌮ㄽⓗ࡞ᆅ┙ືࡢῶ⾶ 㔞ࡣࡇࢀࡽ 2 ᘧࡢྜ⟬್࡞ࡿࠋ2㸧ᮏ㐺⏝ࡋࡓ ሙྜࡘ࠸࡚௨ୗ♧ࡍࠋ ࣭⾲㠃ἼᐇయἼࡢ」ྜἼࡢሙྜࡢῶ⾶㔞 A㸦dB㸧 A=15×Log10(r/r0) ᘧ㸦1㸧 ࣭ᅵ㉁ࡼࡿῶ⾶㔞 A㸦dB㸧 A=8.68×Į×(r/r0) ᘧ㸦2㸧 ࡇࡇ㸪r ࠾ࡼࡧ r0㸸ᅗ㸷ཧ↷ Į㸸ᅵ㉁ࡢῶ⾶ᐃᩘ㸦⢓ᛶᅵ㸸Į=0.02㸧 ⾲㸰㸪ఫᏯᆅ㞄᥋ࡋࡓ㠃ᮾഃ࠾ࡼࡧす㠃༡ഃ ࢆᕤࡋࡓ 4 ᪥┠࠾ࡼࡧ 13 ᪥┠㸦ᅗ㸶ᑐᛂ㸪ᅗ㸯୰ ࡢϨ࠾ࡼࡧϩ㸧࠾࠸࡚㸪⌮ㄽᘧᇶ࡙ࡃᆅ┙ືࡢ ㊥㞳ῶ⾶㔞㸦௨ୗ㸪⌮ㄽ್㸧ྛ Ⅼ࡛ᐇ ࡋࡓᆅ┙ ືࡢᕪศ㸦௨ୗ㸪ᐇ ್㸧ࢆẚ㍑ࡋࡓ⤖ᯝࢆ♧ࡍࠋ ⌮ㄽ್ᐇ ್ࡢᕪࡣ-2dB ࠾ࡼࡧ+4dB ᑠࡉࡃ㸪୧ ⪅ࡣᴫࡡ୍⮴ࡋ࡚࠸ࡿࠋ ࡇࢀࡼࡾ㸪᪤Ꮡᆅୗ㌣యࡀṧ⨨ࡍࡿ≧ἣ࠾࠸࡚ࡶ㸪 ⌮ㄽᘧࡽᆅ┙ືࡢ㊥㞳ῶ⾶㔞ࢆᴫࡡ᥎ᐃ࡛ࡁࡿ ⪃࠼ࡽࢀࡿࠋࡍ࡞ࢃࡕ㸪࠶ࡿ Ⅼࡢᐇ ್ࡽࡑࢀ௨ እࡢᆅⅬࡢᆅ┙ືࢆᴫࡡ᥎ᐃࡍࡿࡇࡀ࡛ࡁࡿ࠸ ࠼ࡿࠋࡓࡔࡋࠊࡇࡢ᳨ドࡣᕤሙᡤࡀ 1 ⟠ᡤ㝈ᐃࡉ ࢀࡿࢯࣝࢭ࣓ࣥࢺቨࡢᕤࢆᑐ㇟⾜ࡗ࡚࠸ࡿࠋ 」ᩘಶᡤ࡛㔜ᶵసᴗࡀ⾜ࢃࢀࡿሙྜ࠾ࡅࡿᆅ┙ື ࡢ⡆᫆࡞᥎ᐃ᪉ἲࢆ☜❧ࡍࡿࡓࡵ㸪᭷㝈せ⣲ἲ࡞ ࡼࡿヲ⣽࡞᳨ドࡸື※㸦㔜ᶵ⨨㸧ࡢືࣞ࣋ࣝ ࢆ᫂ࡽࡍࡿᚲせࡀ࠶ࡿࠋ ࣮ࢫࢻࣜࣝᣑᗏᮺᕤࡢศᯒ ᅗ㸯㸮㸪ᅗ㸯♧ࡍ᪂⠏ᮺ 1 ࠾ࡼࡧ᪂⠏ᮺ 2 ᕤ ࠾ࡅࡿᆅ┙ືࡢ⤒ኚࢆ♧ࡍࠋྠᅗ㸦㸯㸧 0 5 10 15 20 25 30 35 1 2 3 4 5 6 7 8 9 10 11 12 13 ቑศᆅ┙ື㸦 dB 㸧 㸦᪥┠㸧 ⅬA ⅬB -18 -15 -12 -9 -6 -3 0 ῝ᗘ GL 㸦 m 㸧 0 20 40 60 ᆅ┙ື 㸦 dB 㸧 4᪥┠ 13᪥┠ Ϩ 㠃 ᮾ ഃ ϩ す 㠃 ༡ ഃ 17 70 48 25 ⾲ 㠃 Ἴ ᐇ య Ἴ ࡢ 」 ྜ Ἴ ࡢ ሙ ྜ 7 7 ᅵ ㉁ ࡼ ࡿ ῶ ⾶ 5 8 ୖ グ ࡢ ྜ ⟬ ್ 12 15 ᐇ ್ Ⅼ A Ⅼ B ࡢ ᕪ ␗ [ῶ ⾶ 㔞 ] 10 㸦 A>B㸧 19 㸦 B>A㸧 -2 4 ᕤ ᪥ 㸦 ͤ ᅗ 㸶 ᑐ ᛂ 㸧 ᕤ ⨨ 㸦 ͤ ᅗ 㸯 ᑐ ᛂ 㸧 ィ ⟬ ್ ᐇ ್ ࡢ ᕪ ␗ 㸦 㸩 㸸 ᐇ ್ ࡢ ᪉ ࡀ 㸧 ィ ⟬ ್ ῶ ⾶ 㔞 㸦 dB㸧 ᕤ ⨨ ࡽ Ⅼ Bࡲ ࡛ ࡢ ㊥ 㞳 㸦 m㸧 ᕤ ⨨ ࡽ Ⅼ Aࡲ ࡛ ࡢ ㊥ 㞳 㸦 m㸧 ᅗ㸶 ࢯࣝࢭ࣓ࣥࢺቨᕤࡢᖹᆒቑศᆅ┙ື ᮾ㠃 す㠃 㠃 ⾲㸰 ㊥㞳ῶ⾶㔞㛵ࡍࡿ⌮ㄽゎࡢẚ㍑ ື※ 㸦m㸧 r0 ῶ⾶㔞 㸦m㸧 r A㸦dB㸧 ᅗ㸷 ⌮ㄽᘧࡢࣔࢹࣝᅗ ᅗ㸯㸮 ᇶ♏ᮺᕤ࠾ࡅࡿᆅ┙ືࡢ⤒ኚ 㸦㸰㸧ᆅ┙ື 㸦㸯㸧ᕤࢧࢡࣝ ᪂⠏ᮺ ᪂⠏ᮺ Ⅼ $ Ⅼ % ᣑᗏ㒊᥀๐ ㍈㒊๐Ꮝ &21 ᡴタ
ࡣྛ᪂⠏ᮺࡢᕤࢧࢡࣝࢆ♧ࡍࠋ࠸ࡎࢀࡶ㍈㒊๐Ꮝ ࡽᣑᗏ㒊᥀๐ࡢ㛫࠾ࡼࡧࢥࣥࢡ࣮ࣜࢺࡢᡴタᆅ ┙ືࡀቑࡋ࡚࠸ࡿࠋ ᅗ㸯㸯㸪᪂⠏ᮺ 1 ࠾ࡼࡧ᪂⠏ᮺ 2 ࡢ㍈㒊๐Ꮝ㸪 ᣑᗏ㒊᥀๐࠾ࡼࡧᮺࢥࣥࢡ࣮ࣜࢺᡴタ࠾ࡅࡿᖹ ᆒቑศᆅ┙ືࢆ♧ࡍࠋࡲࡓ㸪ᅗ㸯㸰ࡣ㸪᪂⠏ᮺᕤ ࠾ࡅࡿᅗ㸯୰ࡢ B ᩿㠃ࢆᴫᛕⓗᥥ࠸ࡓࡶࡢ࡛࠶ ࡿࠋ ㍈㒊๐Ꮝ࠾ࡼࡧᣑᗏ㒊᥀๐࠾ࡅࡿᆅ┙ືࡢቑ ศࡣ㸪࠸ࡎࢀࡶᮺࢥࣥࢡ࣮ࣜࢺᡴタࡼࡾࡶ 10dB ⛬ᗘ ࡁࡃ㸪ࡲࡓ㸪 Ⅼ A ࡢ᪉ࡀ Ⅼ B ࡼࡾࡶࡁ࠸ࠋࡇ ࡢせᅉࡋ࡚ࡣ㸪ᕤᶵᲔࡀ Ⅼ A ㏆࠸ࡇࡸぶᮺ ᶓ▮ᯈࡼࡾ༡ഃࡢᆅ┙㠃ࡀ⣙ 3m ୗࡀࡗ࡚࠸ࡿࡓࡵ㸪ࡇ ࡢ㒊ศࡀ㜵⁁ࡢᙺࢆᯝࡓࡋ࡚ᆅ┙ືࡢఏᦙࢆᢚ ไࡋࡓࡇ࡞ࡀ⪃࠼ࡽࢀࡿࠋࡲࡓ㸪 Ⅼ A ࡘ࠸࡚㸪 ㍈㒊๐Ꮝᣑᗏ㒊᥀๐ࢆẚ㍑ࡍࡿ㸪ᣑᗏ㒊᥀๐ ࡣ῝㒊ᆅ┙㸦⣙ GL-14m㸧࡛ࡢᣑᗏࡶࢃࡽࡎ㸪 ㍈㒊๐Ꮝࡼࡾࡶ 1㹼6dB ⛬ᗘࡋᑠࡉࡃ࡞ࡃ㸪ẚ㍑ⓗ ࡁ࡞ᆅ┙ືࡀⓎ⏕ࡋ࡚࠸ࡿࠋ ࡲࡵ ᮏሗ࡛ࡣ㸪㌾ᙅᆅ┙⨨ࡍࡿ᪤Ꮡᘓ≀ࡢゎయࡽ ᪂⠏ᘓ≀ࡢᵓ⠏⮳ࡿࡲ࡛㸪ᩜᆅቃ⏺ࡢᆅ┙ືࢆ㐃 ⥆ⓗࣔࢽࢱࣜࣥࢢ࣭グ㘓ࡋ㸪ࡑࡢィ グ㘓ࢆᕤᕤ ⛬ẖᩚ⌮ࡋ࡚ศᯒࡋࡓࠋᚓࡽࢀࡓ▱ぢࢆ௨ୗ♧ࡍࠋ ձᇶ♏⪏ᅽ∧ゎయࡢᆅ┙ືࡀ᭱ࡶࡁࡃ㸪ᆅୖ 㸦RF㹼1F㸧ゎయ 5㹼10dB ⛬ᗘࡢᕪࡀ࠶ࡿࠋ ղ㔜ᶵࡀᆅ⾲㠃ࡶࡋࡃࡣࡑࢀࡼࡾࡶୗ᪉࡛ࣞ࣋ࣝసᴗ ࡍࡿሙྜࡣ㸪≉ᆅ┙ືࡀࡁࡃ࡞ࡿࠋ ճࢣ࣮ࢩࣥࢢ࣮࣮࢜࢞ᕤἲࡼࡗ࡚᪤Ꮡᮺࢆᘬᢤࡃ㸪 ᆅ┙ືࡢቑศࡣᑠࡉ࠸ࠋ մᆅ┙ࢆ๐Ꮝࡍࡿࢯࣝࢭ࣓ࣥࢺቨࡸᇶ♏ᮺࡢᕤ ࡣᆅ┙ືࡀࡁࡃ࡞ࡿࠋ յ᪂⠏㌣యᵓ⠏ࡢᆅ┙ືࡣ㸪ࢥࣥࢡ࣮ࣜࢺᡴタ ࢆ㝖ࡃẚ㍑ⓗᑠࡉ࠸ࠋ ն࣮ࢫࢻࣜࣝᣑᗏᮺࡢᣑᗏ㒊᥀๐ࡢᆅ┙ືࡣ㸪 ῝㒊ᆅ┙࡛ࡢᣑᗏࡶࢃࡽࡎ㸪㍈㒊๐Ꮝྠ ⛬ᗘⓎ⏕ࡍࡿࠋ շ᪤Ꮡᆅୗ㌣యࡀṧ⨨ࡍࡿ≧ἣ࠾࠸࡚㸪⌮ㄽᘧࢆ⏝ ࠸࡚ᆅ┙ືࡢ㊥㞳ῶ⾶㔞ࢆᴫࡡ᥎ᐃ࡛ࡁࡿࠋ ཧ⪃ᩥ⊩ 1㸧 ୰ἑᴁኴ࣭ୖΎ࣭ 2 ྡ㸸㌾ᙅᆅ┙࠾ࡅࡿᘓ≀ࡢゎయ࣭᪂⠏ᕤక࠺ᆅ┙ື㸪➨ 49 ᅇᆅ┙ᕤᏛ◊✲Ⓨ⾲㸪pp.2167-2168㸪2014 ᖺ 7 ᭶ 2㸧 ሷ⏣ṇ⣧㸸බᐖືࡢண ᡭἲ㸪1986 ᖺ 6 ᭶
ANALYSIS OF GROUND VIBRATION DURING THE DEMOLITION WORK AND
NEW CONSTRUCTION WORK OF THE BUILDING ON SOFT GROUND
F.Nakazawa, K.Numakami
M.Toyoshima, and H.Setoyama
In this paper, during the demolition work and new construction work of the building on soft ground, by measuring consecutively the ground vibration in the ground surface of the site boundary, we analyzed the ground vibration level for each process. As a result, it was confirmed that in the case of heavy equipment work at the lower level than the ground surface level, ground vibration is particularly large. On the other hand, when building a structure of new buildings, with the exception of the setting of the concrete, ground vibration was confirmed to be small. Also, even if the existing underground structures is leaving, it was confirmed that it can be estimated roughly the amount of attenuation of ground vibration with distance by using a theoretical formula.
0 5 10 15 20 25 ㍈ 㒊 ๐ Ꮝ ᣑ ᗏ 㒊 ᥀ ๐ C O N ᡴ タ ቑศᆅ┙ື㸦 dB 㸧 ⅬA ⅬB 0 5 10 15 20 25 ㍈ 㒊 ๐ Ꮝ ᣑ ᗏ 㒊 ᥀ ๐ C O N ᡴ タ ቑศᆅ┙ື㸦 dB 㸧 ⅬA ⅬB ᅗ㸯㸯 ᇶ♏ᮺᕤࡢᖹᆒቑศᆅ┙ື 㸦㸰㸧᪂⠏ᮺ 2 ᕤ 㸦㸯㸧᪂⠏ᮺ 1 ᕤ ᅗ㸯㸰 ᪂⠏ᮺᡴタࡢᕤ≧ἣࡢᴫᛕᅗ 㸦ᅗ㸯୰ࡢ B ᩿㠃㸧 Ⅼ A Ⅼ B ۃ⣙ GL-3m ᪂⠏ᮺ 2 ᕤᶵᲔ ࡢタ⨨ሙᡤ ぶᮺᶓ▮ᯈ ࢯࣝࢭ࣓ࣥࢺቨ
