| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a shield tunnel flexibly adaptable to various constructing conditions and capable of efficiently preventing its uplift. <P>SOLUTION: Projecting members 20 projecting into a ground are provided on segments 12 under the depth of the void center of the shield tunnel, respectively. On the void side of the shield tunnel, the projecting members 20 are fixed to the segments 12 on which the projecting members 20 are provided and the front ends of the projecting members 20 are also fixed to segments 12 opposed to the front ends, respectively. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
