MULTIPLE ARCH TUNNEL HAVING A WATERTIGHT CASE

A multiple arch tunnel having a waterproof case is provided to prevent the deflection or distortion of a waterproof case placed on the top of a central bearing wall. The multiple arch tunnel having a waterproof case includes a central bearing wall provided with a drainageway and attached with a vertical drainpipe(220) installed to the inside of the central bearing wall and connected with the drainageway, a waterproof case placed on the top of the central bearing wall to be lifted from the center toward two sides and composed of a case body equipped with at least one or more drainpipes connected to the vertical drainpipe and a fixing member(320) installed to the center to secure the case body, and a drain member(400) extended from a main tunnel and a secondary main tunnel and composed of a waterproof sheet(410) located on the upper part of the case body, non-woven fabrics(420) placed on the top of the waterproof sheet, a drain pad(430) placed on the top of the non-woven fabrics and a vinyl sheet(440) placed on the top of the drain pad. 본 발명은 방수케이스를 갖는 다중 아치형 터널을 제공한다. 상기 방수케이스를 갖는 다중 아치형 터널은 하단부에 배수로가 형성되는 중앙지지벽과, 상기 중앙지지벽의 양측부에 형성되는 메인터널들과, 상기 중앙지지벽의 내부에 내설되며, 상기 배수로와 연통되는 수직배수관과, 상기 중앙지지벽의 상단부에 위치되고, 중앙부가 양측부보다 높게 형성되고, 상기 수직배수관과 연통되는 적어도 하나 이상의 배수관이 구비된 케이스몸체와, 상기 중앙부에 설치되어, 상기 케이스몸체를 고정하는 고정부재를 구비한다.