Transcription of 自在ボーリング技術を用いた ... - taisei.co.jp
1 40 (2007) Keywords : horizontal directional drilling, real-time locating system, radio communication, soil improvement 1. 2.
2 General view of soil improvement method using horizontal directional drilling Control of horizontal directional drilling 24-1 40 (2007) 90mm 2 60m
3 Coil for radio communication system Radio locating system 3. 5m N 10 G. L . - 3 . 5 m 8m 60m 30m Monitoring of drilling line , 90mm 24-2 40 (2007)
4 Work flow of horizontal directional drilling Ls m L-Ls m Ye sNo Locating system mounted on drilling machine 1m L L=1m Ls x y z L n xn yn zn n dn n = +=niiinLz11)2sin( (1) = +=niiinddLy11)2sin( (2) = +++ =niiiiinddLx1211212)))2(sin)2((sin1( (3)
5 300mm L/ Arragement of equipments 70005000800012000 mm 24-3 40 (2007) Drilling line L = m Ls m mm R=50m R=67m R=60m Result of drilling directional control Ls=0 15 20mm 60m Ls Ls=0 3 4.
6 1) 2005 2) 60 6-257 3) 60 6-256 4) 5) 2006.
7 Definisions of drilling vector -1 +1 N +1 n+1 n +1 L24-4
