1)-2 トンネル工（NATM）[機械掘削工法] 1. 適用範囲 1-1 適 …

1 25 . IV 5 1) NATM . 1)-2 NATM . 1.. 1-1 .. NATM 2,500m 50m2 .. 1) . 2) 49N/mm2 500kgf/cm2 . 3) . 4) 2,500m 50m2 . 95m2 .. 5) . 6) A B C -a,D -a E . 7) . 1 1 . 8) 3-4 4 . m2 m2 . 40 40 A 45 A . 50 70 . C C 75 A D D 10 10 A 15 A . 20 30 . 35 A .. -641- 25 . IV 5 1) NATM . 1-2 .. Yes D . No q =49N/mm2(500kgf/cm2).. No Yes D . Yes q =49N/mm2(500kgf/cm2) .. No .. 90 . -642- 25 . IV 5 1) NATM . 2.. 3.. 3-1 .. C,D .. -643- 25 . IV 5 1) NATM . 3-2 .. 1 .. 2 . -644- 25 . IV 5 1) NATM .. 3 .. 4 . -645- 25 . IV 5 1) NATM .. 5 . 3-3 . 5 1)-1 NATM . 3-4 . 3-4-1 .. 2 .. -646- 25 . IV 5 1) NATM . 3-4-2 .. m/ . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75 .. D . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 .. 8 . 3-5 . 1 .. 1 . 2 .. 2 . 1) . 2) . -647- 25 . IV 5 1) NATM . 3-6 .. cm . N1 . C 13 8 5. C 13 8 5.

2 D 13 8 5. D 13 8 5. 1 . 2 . 3 5cm .. 4 .. R1 t1 t3 . [ R1 t1 t3 ] .. t2 t4 . -648- 25 . IV 5 1) NATM .. R1 t1 t3 t5 . [ R1 t1 t3 . t5 ] .. t2 t4 . 3-7 . 3-7-1 .. 1 . 3-7-2 .. C C 25% . D 25% . 25% . D .. 1 1 1) . 2 . 1 1) . 3 D . -649- 25 . IV 5 1) NATM . 3-8 . 3-8-1 .. 30t 1. 15m3 3 1. 25m3/h 1. 1 . 2 . 3-8-2 . 1 . 2 . 3 . 3-8-3 . 40W 5m 500W . 6 4 2 4 . 3-8-4 . 1 .. 30m .. 2 .. 3 .. 4 .. (5) .. 3-8-5 . 1 .. 2 .. 65mm 45m 1. 20m3 1. (3) .. 50mm 20m 4. -650- 25 . IV 5 1) NATM . 3-8-6 .. 3-8-7 .. 3-8-8 .. (1) . (2) . (3) . 3-9 . 3-9-1 . 1 .. 2 .. 3 .. 4 .. 5 .. 6 .. 7 .. 8 .. 9 .. 10 .. 11 .. 12 .. 13 . 14 .. 15 . 16 . 3-9-2 . 1 .. 2 .. 3-10 . A B . B . 3-11 .. -651- 25 . IV 5 1) NATM . 4.. 4-1 . 4-1-1 . 1 .. / 1m . m2 .. 40 45 50 55 60 65 70 75. C 40 45 50 55 60 65 70 75.. 40 45 50 55 60 65 70 75.. C . 40 45 50 55 60 65 70 75.. 40 45 50 55 60 65 70 75 .. D . 40 45 50 55 60 65 70 75.. 40 45 50 55 60 65 70 75.

3 D . 40 45 50 55 60 65 70 75.. 50m2 A1 95m2. 70m2 . 75m2 75m2 . 40m2 40m2 . 1 . 2 . 1m 1/5 . 3 .. -652- 25 . IV 5 1) NATM . 2 .. 1.. 200 240kW.. 1 .. 1,300kg 1.. 1 .. 10t n .. 7m 1.. 6 20m3 .. 2 1.. 150kg .. 200 240kW / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D . 1,300kg / 1m . m2 .. 10 15 20 25 30 35. C C . D D 3 .. / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D -653- 25 . IV 5 1) NATM . 4 . 1) .. / 1m . m2 .. 40 45 50 55 60 65 70 75. 4 4 4 4 4 4 4 4.. C 10 15 20 25 30 35. m2 . 5 4 3 3 2 1. 40 45 50 55 60 65 70 75.. 4 4 4 4 4 4 4 4. C . 10 15 20 25 30 35. m2 . 5 4 3 3 2 1 .. 40 45 50 55 60 65 70 75 .. 5 5 6 6 6 7 7 8 . D . 10 15 20 25 30 35. m2 . 5 5 5 4 4 4. 40 45 50 55 60 65 70 75.. 6 7 7 8 8 9 10 10. D . 10 15 20 25 30 35. m2 . 8 7 6 5 4 3. 2) . JIS-G-3551 150 150 5 . H R .. / 1m . m2 .. 40 45 50 55 60 65 70 75. 2 2 2 2 2 2 2 2.. C 10 15 20 25 30 35. m2 . 16 16 16 16 16 16. 40 45 50 55 60 65 70 75.. 8 8 8 8 8 8 8 8.

4 C . 10 15 20 25 30 35. m2 . 16 16 16 16 16 16 .. 40 45 50 55 60 65 70 75 .. 14 14 14 14 14 14 14 14 . D . 10 15 20 25 30 35. m2 . 6 6 6 6 6 6. 40 45 50 55 60 65 70 75.. 16 16 16 16 16 16 16 16. D . 10 15 20 25 30 35. m2 . 9 9 9 9 9 9. -654- 25 . IV 5 1) NATM . 4-1-2 . 1 .. 2 .. / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D .. / 1m . m2 .. 10 15 20 25 30 35. C C . D D 3 .. 10t L L L L . 2 3 3 4 . 10t L L . 2 3 . 1 L . 2 . -655- 25 . IV 5 1) NATM . 4 .. 10t 2 . L / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D . 10t 3 . L L / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D . 10t 4 . L / 1m . m2 .. 40 45 50 55 60 65 70 75. C C . D D . 10t 2 . L / 1m . m2 .. 10 15 20 25 30 35. C C . D D . 10t 3 . L / 1m . m2 .. 10 15 20 25 30 35. C C . D D -656- 25 . IV 5 1) NATM . 4-1-3 .. 1 2) 3) .. 4-2 . 4-2-1 . 1 .. 2 .. 3 . 1m3 .. W/C .. 28 . 10 2cm 56 15mm . 18N/mm2 1,086kg 675kg . 360kg 4 . 1m .. m3/ 1m . m2 .. 40 45 50 55 60 65 70 75.

5 C 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . -657- 25 . IV 5 1) NATM . 5 .. cm . C 10 5 30 C 10 5 30 . D 15 5 30 D 20 5 30 . C 10 5 20 C 10 5 20 . D 15 5 20 D 20 5 20 1 . 2 . K / 1 . 6 . 1m .. 7m 6 20m3 / 1m . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . -658- 25 . IV 5 1) NATM . 7 . 1m .. 25m3/h / 1m . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 8 .. 9 . 1) . 2) .. 3) . 1m .. m3/min / 1m . m2 .. 40 45 50 55 60 65 70 75.

6 C 10 15 20 25 30 35.. 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35.. 40 45 50 55 60 65 70 75 .. D . 10 15 20 25 30 35.. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35.. -659- 25 . IV 5 1) NATM . 4-2-2 . 1 .. C 12t .. C 18t . D . D . 2 .. 2 150kg / 1m . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. C . 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . C C .. 3 .. 12t L=3m / 1m . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 . C C .. -660- 25 . IV 5 1) NATM .. 18t L=3m / 1m . m2 .. 40 45 50 55 60 65 70 75.. C 10 15 20 25 30 35. m2 .. 18t L=4m / 1m . m2 .. 40 45 50 55 60 65 70 75.. D 10 15 20 25 30 35. m2 .. 40 45 50 55 60 65 70 75.. D . 10 15 20 25 30 35. m2 . 4 .. 100m .. m3 . 5 . 1 / .. 4-2-3 . 1 .. C D D .. H 125 125 9 H 125 125 9 H 150 150 7 10. H . n 2 n 2 n 2. PL 155 180 9 PL 155 180 9 PL 180 180 9.

7 N 2 n 2 n 2. PL 155 180 9 PL 180 180 9.. n 4 n 4. H 125 125 9 H 150 150 7 10. H . n 2 n 2. PL 230 180 16 PL 230 230 16 PL 250 250 16.. n 2 n 2 n 2. -661- 25 . IV 5 1) NATM . 2 .. H . SS400 H-125 t/ 1m . m2 .. 40 45 50 55 60 65 70 75. C 40 45 50 55 60 65 70 75 .. D . 10 15 20 25 30 35. m2 . H . SS400 H-150 t/ 1m . m2 .. 40 45 50 55 60 65 70 75.. D 10 15 20 25 30 35 . m2 .. 4-3 .. 4-4 . 4-4-1 . 5 1) NATM 4-4 . 4-4-2 . 5 1) NATM 4-4 . 4-4-3 . 5 1) NATM 4-4 . 4-4-4 . 5 1) NATM 4-4 . 4-4-5 . 2 1) . 4-4-6 . 5 1) NATM 4-4 .. 4-4-7 . 5 1) NATM 4-4.. 4-4-8 . 5 1) NATM 4-4 .. -662.