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1 30 Geo-Tornado Mixing Method 9 Drilled Foundations JET GROUTING 2008 6

2 21 26 26 26 271 160cm 200cm 160 200cm 40m 15 160 200cm 40cm 220cm 150mm 2 i o e i o e i o i o o 0 e o o e t

3 T i i t t a t 3 min t min iw ig) ia Tornaghi ia a 10 a 1 t a 4 3 min t min it iw ig ia it iw ig ia 5 50 m 1 MONO DOUBLE TRIPLE ( ) 1.

4 Qu kgf/cm2 qu qu 3. 7( )1. 50 30 2. 10% 3. 1m3 u kN/m2 1m3 kg/m3 ( ) 1. ( 1.)

5 GTM-30 2. 3, ValviQ (mm) ( ) 60 90 -S60 90 60 90 HD60 90 ( )1. 1m SM103 (1) (2) ( ) 1. W/C=80% 40 MPa 150 200L/ 2.

6 3. 4. (3) GTM - (m) 30 (m) 40 (m) 40 HD (kw) 40 MPa 150 200 / 150kw 400V: 400 KVA 24m3/h, - 10 12m3/ 200 / 75 KVA10(4) 0 1 2 3 4 5 6 7 8 N 15 N=2 9 21m0 21m 0 21 <L 40m +0 1 2 0 11(5)

7 C 1 2 t3 4 t5 f c t1 t2 t3 t4 t5 f f1 f9 t1 t1: 1. 3m 2. t2 t2= 1+ 2+ 3 1 1 L1 m /m 2 2 / L2 h0= 3 T3 L2 h0= 12 min/ (N 5) (N 5) N 30 N 30 ( 75mm) 1.

8 2. 75mm 1. 2. t3 t3= 4+ 5 4 4 1 Vw /m 1 h1 hVw Vw 1 5 5 / t4 Gt4 6 6 Vc /m m N2 c t5 t5=( 7 8) 7 L2 /m 8 L2 h0= 1 (L1)

9 /m 2 (L2+h+h0) 1m 3 (L2+h+h0) / 4 h1 1 3 /m 5 6 N2 (7 9) /m 7 (L2) /m 8 (L2+h+h0) / t2 1+ 2 3 t3 4 5 t4 6 t5 7 8 1. L1 / 2. (L2) 3. 4. 10 C 60 8 1 14(6) N 30 N 30 GTM 1. 75mm 2 75mm 2 (7) m3 GTM MAX 60 MPa 1.

10 75mm 2 75mm (8) 15(9) t kg 3 ( ) g g= 1. GTM-30 2. 3. (10) 25 1. 2. 1 2 3 4 : m3 1 m3 1 2 1 1+ 2 1 2 m3 2 4 2 1+ 4 2 3 m3 3 6 3 1+ 6 16 3 4 m3 4 1.