戦-6 ずい道建設における機械掘削時の粉じん対策技術の
Contents
1. 0 005 0 004 0 003 0 002 0 001 K mg m CPM 0 2 4 6 8 11 m mg m a 11 m K 0 005 0 004 0 003 0 002 0 001 K mg m CPM 0 0 5 10 4 7 7 0 uu m mg m b 4 7 7 u m K 0 005 0 004 0 003 0 002 K ng m CPM 0 001 0 0 5 10 2 1 3 3 um mg m3 c 2 1 3 3 um K 0 005 0 004 0 003 0 002 K mg m CPM 0 001 0 0 2 4 0 65 1 1ugm mg m d 0 65 1 1 u m K 4 K LD 3K 6 K mg m CPM o o o OD oO oO O N CS A ol 0 5 1 11 m2. 3 Gerd os _ Alog N 7 p Alog7 um 7 EAE 7 um g es 4 3 log Nmax 108 N nin log Nmax 108 Mrnin _ Hog N otmas Flog 108 trax 108 Min 3 D 5 a GN max amp const 6 Cao RR log as D ll inar 7 log A 7 6 5 m
3. K 19 100m 80m K 8 2 30MPa
4. Do 1 2000 2 2008 3 LD 5D 4 Mandelbrot B B 1982 The Fractal Geometry of Nature W H Freeman and Company New York 468p 5 1986 186p 6 Feder J 1988 Fractals Plenum Press New York 282p 7 Q990 159p DEVELOPMENT OF DUST CONTROL TECHNOLOGY IN THE TUNNEL CONSTRUCTION WITH EXCAVATION MACHINES Abstract A study was conducted using a full scaled tunnel simulation at our Construction Environment Laboratory 100 meter long cross sectional area 80 square meters From the results of the study correlation between dust c
5. CPM 1 BA LD 3K K 0 003 00mg m LD 5D K 0 01 1CPM 0 01 mg m 1 K ics LD 3K K 2 LD 5D K 3 2 LD 3K 10 mg K K 3 LD 5D K LD 3K 10mg K 0 001 0 003 mg m CPM 2 6 0 005 0 004 0 003 0 002 K mg m CPM 0 001
6. RBI 1 1 LD 5D LD 5D 8 LD 3K ILD 3KI O44 2 py OO TIT LV 40BR 4 AN 200 1 2 1 10m 30m 50m O No 2 ONo 5 ONo 8 Ae HEKI No 4 OO QNo 7 O No 1 ONo 3 ONo 6 O LD 5D LD 3K 1 2 50m 3 3 1 K mg m K
7. 50m 0 2 4mg m Li S25 lt Aes DERE TAT Eca 11 5 4 5 50m DS 0 5 16 3mg m 6 1 46 9 mg mmW 1 2 6 Aes 12 6 5 19 LD 3K 10 mg m Lh K K D 5D 6 K
8. 50m 3 Clog 7 amp logN 7 FOP EIT GT J eg Lip ums 7 lt llum 4 7umS 7 lt 7um 3 3ums y lt 4 Tum 2 lumsS 7 lt 3 3um l lums 7 lt 2 1pm 0 65umsS 7 lt 1 lum 0 48 umS 7 lt 0 65um 0 48 pm Os PACK ORTH OID PU TU VT ANIL 2 1gm gt 2 1um 6 1 508 y 1 5081x 0 4039 R 0 9938 log N n 0 0 0 5 1 0 1 5 2 0 logy 6 7 LD 3K K LD 3K K
9. LD 3K 10mg m 10mg m 3 1 CPM K 8 LD 5D K LD 5D K K 0 0040 0 0035 0 0030 0 0025 0 0020 0 0015 KE 0 0010 0 0005 0 0000 0 0 0 5 1 0 1 5 2 0 2 5 7 K LD 3K 0 0350 0 0300 y 0 01x 0 0289 R 0 3494 0 0250 0 0200 0 0150 0 0100 KE 0 005
10. mg m a 11 m K 0 5 1 4 7 7 0 um CASE mg m b 47 7 UMLALOMEAIBEE K K mg m CPM 5 gt amp gt O N CO A ol 5 1 2 1 3 3 Uu MHCA BE mg m c 2 1 3 3 u m K ol 0 65 1 1 umBCABE mg m b 0 65 1 1 umMLLEDMCABEE K 5 K LD 5D 135 BE CPM 11 K WOH BODIED KEW GRADO CADE 724 KK 3 3 K KK Mandelbrot Feder9 GAT
11. LD 3K 10mg m K 0 001 0 003 mg m CPM LD 3K K 0 003 mg m CPM K 0 001 mg m CPM O LD 3K LD 5D K D LD 3K K LD 5D K K
12. mg m 2 K LD 3K 0 05 0 04 0 03 0 02 K mg m CPM 0 01 10 20 30 40 50 HCA RE mg m 3 K LD SD LD 3K K 0 003 mg m CPM K 0 001 mg m CPM 3 2 K mg m mg m x 100 2 4 5 11 um 4 7 T7um 2 1 3 3 um ADUIZ O0 65 1 1m K K
13. 6 6 17 20 FRAMES 100m 80m ZAAL BEREH OR CARRETO Z HAE LTE K K K K K
14. 1 12 12 V 3mg m 20 3 1 1 K K
15. 0 0 0000 0 0 1 0 2 0 3 0 8 K LD 5D 4 4 1 50m 18 7 33 5mg m 50m 7 5 12 7mg m 4 2 9 53 50m 8 4 36 3mg mW Oe N 9 6 3 4 3 50m 0 3 3mg m x 10 4 eee 10 4 4
16. oncentration and mass conversion concentration coefficient K values of digital dust meter was analyzed Moreover various kinds of dust reduction technology was applied and those dust reduction effects were checked As a result it was found that 1 the more dust concentration being large the more K values being large 2 K values are influenced by grain size distribution and K values become large according to the particulates of big particle diameter increasing in number 3 The measure against particulate nonproliferation with the elastic ventilation ducting demonstrates an effect very much to particulate reduction Key words Tunnel Machine digging Dust Mass concentration conversion coefficient K value Elastic ventilation ducting
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