A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
MANHOLE REHABILITATION STRUCTURE AND MANHOLE REHABILITATION METHOD
PROBLEM TO BE SOLVED: To rehabilitate an existing manhole whose upstream-side duct and downstream-side duct have tube axes crossed.SOLUTION: A rehabilitation structure for rehabilitating an existing manhole having an upstream-side duct 2 and a downstream-side duct 3 crossed comprises a plastic-made manhole rehabilitation member 20 arranged at a bottom part of the manhole. The manhole rehabilitation member 20 has a bent pipe 21 which has a circularly-sectioned flow passage and has a pipe axis bent corresponding to the angle of intersection of the upstream-side duct and downstream-side duct. An inflow part 21a of the bent pipe 21 is connected airtightly to the upstream-side duct 2, and an outflow part 21b of the bent pipe 21 is connected airtightly to the downstream-side duct 3. The bent pipe 21 has a raised mouth part 22, projecting upward perpendicularly, formed in one body, and a plastic-made raised pipe 30 which is perpendicular and allows a person to enter itself connects with the raised mouth part 22 in one body or as a separate body.SELECTED DRAWING: Figure 3
【課題】 上流側管路と下流側管路の管軸が交差している既設マンホールを低コストで更生する。【解決手段】上流側管路２と下流側管路３が交差するように配置された既設のマンホールを更生するための更生構造は、マンホールの底部に設置されたプラスチック製のマンホール更生部材２０を備えている。マンホール更生部材２０は、断面円形の流路を有し上流側管路と下流側管路の交差角度に対応して管軸が曲げられた曲管２１を有している。曲管２１の流入部２１ａが上流側管路２に水密に接続され、曲管２１の流出部２１ｂが下流側管路３に水密をなして接続されている。曲管２１には上方に鉛直に突出する立ち上がり口部２２が一体に形成されており、この立ち上がり口部２２には、鉛直をなし人が進入可能なプラスチック製の立ち上がり管３０が、一体をなして連なるか別体をなして接続されている。【選択図】図３
MANHOLE REHABILITATION STRUCTURE AND MANHOLE REHABILITATION METHOD
PROBLEM TO BE SOLVED: To rehabilitate an existing manhole whose upstream-side duct and downstream-side duct have tube axes crossed.SOLUTION: A rehabilitation structure for rehabilitating an existing manhole having an upstream-side duct 2 and a downstream-side duct 3 crossed comprises a plastic-made manhole rehabilitation member 20 arranged at a bottom part of the manhole. The manhole rehabilitation member 20 has a bent pipe 21 which has a circularly-sectioned flow passage and has a pipe axis bent corresponding to the angle of intersection of the upstream-side duct and downstream-side duct. An inflow part 21a of the bent pipe 21 is connected airtightly to the upstream-side duct 2, and an outflow part 21b of the bent pipe 21 is connected airtightly to the downstream-side duct 3. The bent pipe 21 has a raised mouth part 22, projecting upward perpendicularly, formed in one body, and a plastic-made raised pipe 30 which is perpendicular and allows a person to enter itself connects with the raised mouth part 22 in one body or as a separate body.SELECTED DRAWING: Figure 3
【課題】 上流側管路と下流側管路の管軸が交差している既設マンホールを低コストで更生する。【解決手段】上流側管路２と下流側管路３が交差するように配置された既設のマンホールを更生するための更生構造は、マンホールの底部に設置されたプラスチック製のマンホール更生部材２０を備えている。マンホール更生部材２０は、断面円形の流路を有し上流側管路と下流側管路の交差角度に対応して管軸が曲げられた曲管２１を有している。曲管２１の流入部２１ａが上流側管路２に水密に接続され、曲管２１の流出部２１ｂが下流側管路３に水密をなして接続されている。曲管２１には上方に鉛直に突出する立ち上がり口部２２が一体に形成されており、この立ち上がり口部２２には、鉛直をなし人が進入可能なプラスチック製の立ち上がり管３０が、一体をなして連なるか別体をなして接続されている。【選択図】図３
MANHOLE REHABILITATION STRUCTURE AND MANHOLE REHABILITATION METHOD
マンホール更生構造およびマンホール更生方法
MAKINO KOZO (author)
2018-05-31
Patent
Electronic Resource
Japanese
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