多数アンカー式補強土壁工法

1. (SN ) SS400 ( ) SN400 SM490A ( ) SN490 JIS G 3136:SN -1994 JIS G 3136:SN 1) SN (SNR ) (JIS G 3138-1996) SN SNR490B 1 1SNR490B 2. SN490 SM490A 2) SNR490B SM490 3) 2SNR490B [N/mm 2 ] 185 185 105 [N/mm 2 ] 277 277 157 1

3. (a) (SNR490B ) 16mm18mm20mm22mm25mm (b) (SNR490B) M18M20M22M24M27 (c) M18M20M22M24M27 (d) M18M20M22M24M27 (e) (f) M18M20M22M24M27 (g) 3 3 JIS G 3138 SNR490B JIS H 8641 HDZ55 JIS G 3138 SNR490B JIS H 8641 HDZ55 JIS G 3475 STKN400WBSTKN490B JIS H 8641 HDZ55 JIS G 4051 S45C JIS H 8641 HDZ55 JIS G 3101 SS400 JIS H 8641 HDZ55 JIS G 3101 SS400 JIS H 8641 HDZ55 JIS B 1180 JIS B 1181 6g JIS H 8641 HDZ55 7H JIS H 8641 HDZ55 S45C 2

(1) 1 4 18 20 22 24 27 (mm) 16 18 20 22 25 (2) 2 5 (mm) (mm) (mm) (mm) 18 52 16 16 465 20 60 20 18 465 22 60 20 20 465 24 62 22 22 465 27 70 25 25 445 3 3

4 6 (mm) (mm) 18M22 M2475 30 45 8.8 24M27 M2475 30 45 10.9 (3) 5 7 (mm) (mm) (kn) 18 280 27 62.4 20 280 27 79.6 22 280 30 98.5 24 280 32 115.0 27 300 37 149.0 4

(4) 6 M18 M20 M22 M24 M27 8 - - L(mm) (M18 ) 80 (M20 ) 80 (M22 ) 80 (M24 ) 80 (M27 ) 90 (5) M18 7 5

9 (mm) (mm) (kg) 300300 4.5 3.8 400400 4.5 6.8 150150 4.5 0.8 8 9 10 (td) (mm) (HBC) (mm) (td) (mm) M18 3.22034 152731.2 4.01950 M20 163034.6 4.02150 M22 183237.0 4.02350 M24 193641.6 4.52550 M27 224147.3 4.52850 6

(6) 2 2 T 10 11 (mm) (mm) (mm) (mm) 4.5D 4.5 440.0 69.0 134.5 6.0D 6.0 440.0 72.0 136.0 9.0D 9.0 440.0 78.0 139.0 11 7

12 (mm) (mm) (mm) (mm) 4.5S 4.5 90.0 42.0 110.0 6.0S 6.0 90.0 45.0 111.5 9.0S 9.0 90.0 51.0 124.5 12 13 13 M2260 4.6 M2260 4.6 1) (SN ):() 1996.10 2) 2001.6 3) 2002.3 8

SNR490B 1. 12 2. C kn/m kn/m kn/m kn/m kn/m C kn/m 9

H m N H0 m 1m WwukN/m Hk m H1m BG m BL m kn/m kn/m kh kn/m CkN/m m Df DfB bc c c m mkn/m 10

FsFs FsFs FsFs FsFs 11

12 kn/ mm mm mm mm M M M M M M M M M M M M M M M M M M M M M M T M M T M M M T M M T M M M M M T M M M M M T M

3. 1 K cos sin( δ ) sin cos cosδ KA 3 3 / 2 A ( ) cossin cot sec( ) tan( ) sin 3 H m 4 BGmBLm kn/m z kn/m z m BG m 13

5 1 HH ( zh ) i K K kn/m KA kn/m z m H m q kn/m 2 i { } ( i) ( i ) (kn/m ) (kn/m ) (kn/m ) 14

i kn/m zi m zi m 3 hi i i hi cos H i Li hii kn/ ihi kn/m Hii m Liii m ii kn/ zi i m i Pi Hi Li Phi Ti i (kn/m cos ) (kn/) (kn/) (kn/) 15

SNR490B i Ti (kn/) M M M M M M M M M M M M M M M M M M M M SS400 i Ti (kn/) 16 M M M M M M M M M M M M M M M M M M M M

Lri m Lr ii m Lr i m m A i h L L ril r i Lr Lr i i Lri Li qpi = KA (Hpi + zi +Hk) + KAqi i kn/ m KA 3 kn/ m H i m zi i m Hk =0.500 i kn/ m 17

i zi H i i kn/ m i kn/ m 1 ui C Nc i N i Q ui kn/ m q i kn/ m C kn/ m Nc Nq 2 T i ui i F u Tai i kn/ Q ui kn/ m i m 18

A i i m FPu i bi A i (m ) i kn/m Q ui kn/m 2 ai kn/ 3 Ti TaiOK Tia kn/ Tai kn/ i m Li m Li i m 19

i bi Li Li i ai kn/ kn/ 1 B m 0 m kn/ m c kn/ m W kn/ m kn/ m Ls m W m P PH P Pcos kn/ m PV P Psin kn/ m 20

{ C Ls cos W sin( )} cos( ) W2 Ls 2 C B V Fs H ( Wr) C B Fsa Fsa Fsa V kn/m H kn/m B m C kn/m Wr kn/m WrW W kn/m 21

1 k C' N' c k ' Df N' ' B N' kn/m u r Qu kn/m k kdfb Df m B m kn/m C kn/m N c N q N r tan H V V VPVWr kn/m H HPH kn/m 2 Qu kn/m Qa kn/m QaQuFkN/m Qu kn/m V QakN/m B 22

F V kn/m B m 1 v i sin Hi kn/m Pvi kn/m Pi kn/m u uhi m i zi Pi (kn/m ) sin Hi vi kn/ m 2 VB V B w c v kn/m kn/m w kn/m 23

WwWwuHkN/m wu m kn/m uh m c kn/m c cbchc kn/m c kn/m c m c m v kn /m 3 ub kb C' N' c kb ' DfBN' ' c N' r kn/m QuB kn/m kb kabdfbbc DfB DfBDfhc m c m c m C kn/m kn/m tan N c N q N r 4 V B B QBa kn/m bc QBu kn/m QBa kn/m 24

QBaQuBF kn/m QuB kn/m F VB kn/m bc m d B m d m M V M knm/m V knm/m TPi ri = Hi L i K P KP u T i = Min ( Ti Ri ) ri kn/m 25

T i kn/ ti kn/ uhi m Li m Tai i kn/ FS SS zi m i zi Hi Li Tai ri T i ri kn/ kn/ kn/ kn/ m 2 1 Fs = ( ) Rc l W costan R W sin Fs R m i kn/m i m W i kn/m i 26

i 2 Fsmin Fsa MRMT knm /m MD X X Y 1 Y R k h A + tan K E A -<0 sin(-)=0 A KA kh 2 1 HH i K kn/m K ( zh ) K E E 27

kn/m z m H m q kn/m 2 i { } ( i) ( i ) i kn/m zi m zi m (kn/m ) (kn/m ) 3) (kn/m ) hi i cos H i Li hii kn/ 28

ihi kn/m Hii m Liii m 4) WhiW wu kh H i Li Whi kn/ Hi m Li m Wwu kn/m kh 5) TiP hiw hi Ti kn/ Phi kn/ Whi kn/ i i Pi (kn/m ) cos Hi Li (kn/) Phi (kn/) Whi (kn/) Ti (kn/) 29

SNR490B i Ti () M M M M M M M M M M M M M M M M M M M M SS400 i Ti () M M M M M M M M M M M M M M M M M M M M 30

i L ril r Lri m Lr i i m Lr i m m AE h i L r i L Lr i Lri Li 1 i K ( Hi zi) K i i kn/ m KAE 3 kn/ m H i m zi i m i kn/ m 2 1 31

ui C Nc i N i Q ui kn/ m i zi H i i kn/ m i kn/ m q i kn/ m C kn/ m Nc [ ] Nq [ ] 2 Tai i kn/ Q ui kn/ m i T i ui i F u m A i i m FPu 3 Ti Tai OK 32

33 Tia kn/ Tai kn/ i bi Li Li i kn/ i kn/

1 2 C B V Fs H C B ( Wr) Fsa khw Fsa Fsa V kn/m H kn/m B m C kn/m Wr kn/m 1 k C' N' c k ' Df N' ' B N' kn/m u r 34

Qu kn/m k kdfb Df m B m kn/m C kn/m N c N q N r tan H V V VPVWr kn/m H kn/m HPH kn/m 2 V QakN/m B Qu kn/m Qa kn/m QaQuFkN/m Qu kn/m F V kn/m B m 35

1 v i sin Hi kn/m Pvi kn/m Pi kn/m u uhi m i zi Pi (kn/m ) sin Hi vi kn/ m v= 2 V B w c v kn/m VB kn/m w kn/m WwWwuHkN/m wu m kn/m u 36

H m c kn/m c cbchc kn/m c kn/m c m c m v kn /m 3 ub kb C' N' c kb ' DfBN' ' c N' r kn/m QuB kn/m kb kabdfbbc DfB DfBDfhcm c m c m C kn/m kn/m tan N c N q N r 4 QBu kn/m QBa kn/m QBaQuBFkN/m V B B QBakN/m bc 37

QuB kn/m F VB kn/m bc m d B m d m M V TPi ri = Hi L i K P ri kn/m T i kn/ ti kn/ uhi m 38

Li m Tai i kn/ FS SS i zi Hi Li Tai ri T i ri kn/ kn/ kn/ kn/ m 2 1 Fs = R { c l ( W cos kh Wsin ) tan } ( RWsin kh Wy ) Fs R m i kn/m i m W i kn/m i i kh 39

yg m 2 Fsmin Fsa MRMT knm /m MD X X Y Y R 40