同步注浆材料配合比设计与试验研究.PDF

2003 1 32 1 CONSTRUCTION TECHNOLOGY 55 ( , 471009) [] [] ; [ ] U455 , ; [ ; ]A ; [ , , ] 100228498 (2003) 0120055203 Design and Experiment Study of Synchronized Grouting Material Ratio WU Quan2li ( Science Research Institute , Chinese Railway Tunnel Group , Luoyang , Henan 471009 , China) Abstract : In this article ,the author firstly introduces the geologic situation ,preparation of the grouting equipment of shield ma2 chine ,and construction features of the Yuesan section project ,and then discusses the synchronized grouting material ratio design , content ,method and basis of the indoor experiment. On the basis of the indoor experiment result ,he selects scientific and economi2 cal synchronized grouting materials and proper material liquid ratio. Finally ,according to problems existing in practical application , he optimizes and adjusts the ratio to achieve an economical material liquid ratio. Key words :underground engineering ; shield construction ; synchronized grouting ; material liquid ratio ; experiment research 1 111 [] , 2 613m , , , Hevrenknecht , , , , 3 , , 112 11211 11212 (1) (2) , : = (6280 - 6000)Π2 = 140mm 2 KSP12 ; , 115h , , ;4 11213 ,, : 50 % 60 % ( 5mm) ; 20 % 25 % ; 20 % 25 % ; 7 % 25 % ; 100 200kgΠm3 0 215 % ; 113 11311 140mm , , : 140mm , , 100mm , ,, ,, ; , 1d , 10m , , 10m , , [1] , , , [ ] 2002205208 [ ] (1969 ) , , ,3 2633073 , 471009 , ( 0379) ? 1994-2010 China Academic Journal Electronic Publishing House. All rights reserved. 56 32 ( 140mm) , 11312 , 2 211 21111 , , , , P P0[2 ] , 21112 : V L 21113 : v0 D d 212 21211 (1) (2) , (3) , 21212 ; ; 21213 (1) , (2) ) P = (111 , , , 1115) P0 012 014MPa [2] : Q=V [2] ( 120 % 180 %) ; , V = ( D2 - d2 ) LΠ4 ,m3 ; , 115m 4186 7129m3 / (115m) , , v = 10 v0 ( D2 - d2 ) Π4 ( LΠmin) (cm/ min , 215 515cm/ min) ; (m) (m) 5mm , , , P O425 , , ( ; ) , ; , 3 5h , 4 12h 45min 1d 012MPa ( ) ,28d 215MPa ( (3) (4) (5) ) 5% (6) 95 % , 8 12cm ( 5 %[4] , 3 311 (1) (2) 312 , 313 1 : 11213 21213 , , 2: , , 315