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    • 7. 发明专利
    • Construction method for variable cross section of tunnel, and tunnel boring machine for use in it
    • 隧道可变交叉段施工方法及隧道掘进机
    • JP2007247211A
    • 2007-09-27
    • JP2006070365
    • 2006-03-15
    • Kajima CorpKawasaki Heavy Ind LtdMitsubishi Heavy Industries Tunneling Machinery & Geotechnology Co Ltd三菱重工地中建機株式会社川崎重工業株式会社鹿島建設株式会社
    • AZUMA TAKASHISUGIYAMA MASAHIKOFURUI MICHIONAGAMORI KUNIHIROSHIRAI SHUNSUKEKAMIO MASAHIROTAKIMOTO KUNIHIKOIGARASHI HIROMASAUCHIDA HIROSHIGEIWATA HIROKICHISAKAI YOSHIO
    • E21D9/06
    • PROBLEM TO BE SOLVED: To enable an easy change such as the width reduction of a part of a cross section of a tunnel.
      SOLUTION: This construction method comprises: a step of assembling a D-type bulkhead segment S3 in such a manner that the bulkhead segment S3 continues into an existing circular segment S1; a step of installing an impervious bulkhead ring 2, the inner periphery of which is equipped with a tail sealing device 8, in such a manner that the bulkhead ring 2 continues into the bulkhead segment S3; a step of assembling a D-type segment S2 in the impervious ring in such a manner that the D-type segment S2 continues into the existing bulkhead segment S3; a step of connecting the impervious bulkhead ring to a boring machine body; a step of sequentially assembling the D-type segment S2; a step of disconnecting the impervious bulkhead ring from the boring machine body, while connecting the impervious bulkhead ring to the final D-type segment 2 when the boring machine body reaches a final position where the width of the cross section of the tunnel is reduced; a step of assembling the circular segment S1 in such a manner that the circular segment S1 continues into the impervious bulkhead unit and the final D-type segment S2; and a step of connecting the circular segment S1 to the impervious bulkhead ring and the final D-type segment S2.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了实现容易的改变,例如隧道的横截面的一部分的宽度减小。 解决方案:该构造方法包括:以隔板段S3继续成为现有的圆形段S1的方式组装D型隔板段S3的步骤; 安装不透水隔板环2的步骤,其内周装备有尾密封装置8,使得隔板环2继续进入隔板段S3; 以D型分段S2连续进入现有的隔板段S3的方式将D型段S2组装在不透水环中的步骤; 将不透水隔板环连接到镗孔机体的步骤; 顺序组装D型段S2的步骤; 当镗床机体到达隧道横截面的宽度减小的最终位置时,将不透水舱壁与镗床主体断开的步骤,同时将不透水舱壁环连接到最终的D型段2; 以圆形段S1连续进入不透水舱壁单元和最终D型段S2的方式组装圆形段S1的步骤; 以及将圆形段S1连接到不透水舱壁环和最终D型段S2的步骤。 版权所有(C)2007,JPO&INPIT