| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a tunnel protective sheet with which prevention of exfoliation and countermeasure of leakage from a tunnel inner surface can be simultaneously taken, and a method of constructing the same.SOLUTION: There is used a tunnel protective sheet 100 in which a sheet body 101 includes a mesh sheet 110 receiving exfoliated pieces from a tunnel inner surface 1 and a water receiving sheet 120 laminated on the mesh sheet 110 and receiving leakage from the tunnel inner surface 1, and at least one row of a belt-like elastic spacer 122 brought into close contact with the tunnel inner surface 1 and forming a water-conveyance space WS between the tunnel inner surface 1 and the sheet body 101 is attached to one surface of the sheet body 101. In a state where the elastic spacer 122 of each row is brought into close contact with the tunnel inner surface 1, the sheet body 101 is fixed to the tunnel inner surface 1 with an anchor bolt 10.</p> |
