A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SYNTHETIC RESIN MANHOLE
PROBLEM TO BE SOLVED: To provide a synthetic resin manhole that has sufficient load-resistant strength and that can reduce protrusion caused by being lifted from a road surface during earthquakes.SOLUTION: A manhole 3, which is wholly made of FRP and integrally molded, has an upper end provided with a gateway facing a road surface, and has a lower part provided with insertion openings 1 and 2 into which sewage pipes on inflow and outflow sides are to be inserted. A vertical rib 5 connected to flanges 4 at upper and lower ends, and a circumferential horizontal rib 6 are protrusively provided at a regular interval in a circumferential direction on an outer periphery and formed in a lattice shape. The ribs 5 and 6 fulfill a manhole reinforcing function, and also fulfill an anchor function by biting into ground under the road surface.SELECTED DRAWING: Figure 1
【課題】十分な耐荷重強度を有し、しかも地震時に路面から浮き上がって突出するのを少なくすることができる合成樹脂製のマンホールを提供する。【解決手段】マンホール３が上端に路面に面する出入口を備え、下部に流入側及び流出側の下水道管が差込まれる差込口１、２を有して全体がＦＲＰ製で一体成形され、外周には周方向に一定間隔で上下端のフランジ４と連結する縦向きのリブ５と、周方向の横向きのリブ６が突設されて格子状をなし、リブ５、６はマンホールの補強機能と、路面下の地中に食い込んでアンカー機能を果たす。【選択図】図１
SYNTHETIC RESIN MANHOLE
PROBLEM TO BE SOLVED: To provide a synthetic resin manhole that has sufficient load-resistant strength and that can reduce protrusion caused by being lifted from a road surface during earthquakes.SOLUTION: A manhole 3, which is wholly made of FRP and integrally molded, has an upper end provided with a gateway facing a road surface, and has a lower part provided with insertion openings 1 and 2 into which sewage pipes on inflow and outflow sides are to be inserted. A vertical rib 5 connected to flanges 4 at upper and lower ends, and a circumferential horizontal rib 6 are protrusively provided at a regular interval in a circumferential direction on an outer periphery and formed in a lattice shape. The ribs 5 and 6 fulfill a manhole reinforcing function, and also fulfill an anchor function by biting into ground under the road surface.SELECTED DRAWING: Figure 1
【課題】十分な耐荷重強度を有し、しかも地震時に路面から浮き上がって突出するのを少なくすることができる合成樹脂製のマンホールを提供する。【解決手段】マンホール３が上端に路面に面する出入口を備え、下部に流入側及び流出側の下水道管が差込まれる差込口１、２を有して全体がＦＲＰ製で一体成形され、外周には周方向に一定間隔で上下端のフランジ４と連結する縦向きのリブ５と、周方向の横向きのリブ６が突設されて格子状をなし、リブ５、６はマンホールの補強機能と、路面下の地中に食い込んでアンカー機能を果たす。【選択図】図１
SYNTHETIC RESIN MANHOLE
合成樹脂製のマンホール
TAKEYA YOSHIHISA (author) / SAEKI TOSHIMASA (author) / IEHISA YUDAI (author) / TAKAGI KAITO (author)
2018-01-25
Patent
Electronic Resource
Japanese
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