| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connection structure of a pipe roof, capable of solving the problem of flood while dispensing with ground improvement and the like, and enabling fixation of an arrival side tunnel and steel pipes for a pipe roof to be performed with high structural reliability while allowing construction errors even when a start side tunnel and the arrival side tunnel have the construction errors.SOLUTION: In the case that steel pipes R for a pipe roof are bridged between a plurality of tunnels HT, TT constructed in a ground G to form a forepoling supporting, a pipe roof connection structure consists of: the steel pipes R for a pipe roof inserted from a start side tunnel HT advanced up to a surface or a position apart from the surface of an arrival side tunnel into the ground; and a fixing member 1 through which ends of the steel pipes R and a surface of the arrival side tunnel TT q are fixed together.</p> |
