| 摘要 |
<p>The present invention relates to a structure to fix a waterproof sheet for a tunnel capable of fixing a waterproof sheet, where non-woven fabric is fused over a waterproof film of a synthetic resin material, to the inner side of shotcrete in the tunnel comprising: a fixing channel fixed and extended in the longitudinal direction or the circumferential direction of the tunnel; and a combining part bonded to the upper surface of the nonwoven fabric of the waterproof sheet, and engaged with the fixing channel. In the fixing channel, a ��shaped cross section is extended in a longitudinal direction, and an opened part is arranged downwards and fixed to shotcrete by a nail. Moreover, an engagement projection is formed in the opened part of the fixing channel, and the engagement projection is separated from both sides of the opened end of the fixing channel while being extended in a longitudinal direction or at least partially at regular intervals. In the engagement projection, a cross section having a diameter whose end is round and enlarged is a circle. The combining part having a groove is fused in the length and direction the same as the fixing channel to combine and accommodate the engagement projections of the fixing channel in the upper side of the nonwoven fabric. Therefore, the present invention has an effect of conveniently fixing a waterproof sheet to shotcrete, and continuously maintaining the waterproof effect without leakage and damage to the non-woven fabric caused by directly fixing the nonwoven fabric of the conventional waterproof sheet by using a nail.</p> |
