| 摘要 |
The present invention relates to a crack inducement embedding sealant for a tunnel, capable of preventing the consumption of extra expenses such as extra costs for surface arrangement as well as inducing a section type structural crack while maintaining hardness due to an existing groove part forming effect by partially embedding the embedding sealant in a groove part forming part of an arch-shaped concrete lining structure. To this end, even if the entire height is limited in order to maintain structural stability, an artificial environment is formed to induce a structural crack by making a head part approach the uppermost part of the concrete lining structure through a stretching part extended upward by concrete placement pressure. Moreover, the present invention is capable of keeping the whole of the embedding sealant stably embedded in the concrete lining structure by dispersing power in a circumferential direction of the head part even if the power is generated when a form board is separated from an exposed part after concrete is cured through the head part having a donut shape. |
