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公开(公告)号:US06520718B1
公开(公告)日:2003-02-18
申请号:US09763993
申请日:2001-02-27
申请人: Shigeki Nagatomo , Hideo Fujimoto , Shigehito Kaji , Hideki Takeuchi , Yoshio Mitarashi , Sohki Ohtsu , Tsuguo Takebayashi , Masakazu Ochiai , Takefumi Yamamoto , Yoshitomo Kinoshita
发明人: Shigeki Nagatomo , Hideo Fujimoto , Shigehito Kaji , Hideki Takeuchi , Yoshio Mitarashi , Sohki Ohtsu , Tsuguo Takebayashi , Masakazu Ochiai , Takefumi Yamamoto , Yoshitomo Kinoshita
IPC分类号: E21D1100
CPC分类号: E21D11/00 , E21D9/00 , E21D9/04 , E21D11/10 , E21D11/105
摘要: This invention relates to a method for boring a large-section tunnel safely and quickly by reinforcing and improving in advance the ground over the full length of the tunnel section, which includes; boring a top drift (2) through the full length of the tunnel (1) section, drilling curved holes inclined in forward or backward directions at an angle of about 45 degrees at preset intervals from the top drift (2) along the peripheral edges of the sections of the tunnel (1) by using ordinary small bore rock drills and curved steel pipes (3), pulling off the steel pipes (3) after inserting injection pipes into the drilled holes, injecting grout into the ground surrounding the tunnel through the injection pipes to develop artificial ground arches (4), excavating the tunnel (1), advancing suspension forms (6) and placing concrete for secondary lining.
摘要翻译: 本发明涉及一种通过在隧道的整个长度上预先加固和改善地面,安全,快速地镗孔大面积隧道的方法,其中包括: 将顶部漂移(2)穿过隧道(1)部分的整个长度,从顶部漂移(2)沿着沿着周向边缘的周边边缘以预定间隔以大约45度的角度沿前后方向倾斜弯曲的孔, 通过使用普通的小孔钻石和弯曲钢管(3),隧道(1)的部分,在将注入管插入钻孔后拔下钢管(3),通过隧道将灌浆注入隧道周围的地面 注入管道开发人造地面拱门(4),挖掘隧道(1),前进悬挂形式(6)和混凝土二次衬里。