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A platform for research: civil engineering, architecture and urbanism
LID-RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
To provide a lid-receiving frame set for underground structure which efficiently releases an inner pressure by securing a discharge amount of a fluid, and can suppress scattering of a lid for underground structure.SOLUTION: A lid-receiving frame set for underground structure includes a receiving frame buried in a state in which an upper end face is exposed to a ground G, and a lid 2 for underground structure having a side face 22 provided with a fitting part fit to an inner peripheral surface of the receiving frame. The side face 22 of the lid 2 for underground structure is provided with an inner pressure release port 7a that has an upper part blocked and is opened toward the inner peripheral surface in a state in which the fitting part is fit to the inner peripheral surface of the receiving frame. The lid 2 for underground structure has a release flow channel 7b which is connected to the inner pressure release port 7a, and a pair of first reinforcement ribs 72 clamping the release flow channel 7b in a circumferential direction and downwardly protruding.SELECTED DRAWING: Figure 2
【課題】流体の排出量を確保することによって内圧を効率的に解放し、地下構造物用蓋の飛散を抑えることができる地下構造物用蓋受枠セットを提供する。【解決手段】上端面が地上Ｇに露出した状態で埋設される受枠と、受枠の内周面に嵌合する嵌合部が設けられた側面２２を有する地下構造物用蓋２とを備え、地下構造物用蓋２の側面２２は、上部が塞がれ、嵌合部が受枠の内周面に嵌合した状態では内周面に向かって開口する内圧解放口７ａが設けられたものであり、地下構造物用蓋２は、内圧解放口７ａにつながった解放流路７ｂと、解放流路７ｂを周方向に挟んで下方へ突出した一対の第１補強リブ７２とを有するものである。【選択図】図２
LID-RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
To provide a lid-receiving frame set for underground structure which efficiently releases an inner pressure by securing a discharge amount of a fluid, and can suppress scattering of a lid for underground structure.SOLUTION: A lid-receiving frame set for underground structure includes a receiving frame buried in a state in which an upper end face is exposed to a ground G, and a lid 2 for underground structure having a side face 22 provided with a fitting part fit to an inner peripheral surface of the receiving frame. The side face 22 of the lid 2 for underground structure is provided with an inner pressure release port 7a that has an upper part blocked and is opened toward the inner peripheral surface in a state in which the fitting part is fit to the inner peripheral surface of the receiving frame. The lid 2 for underground structure has a release flow channel 7b which is connected to the inner pressure release port 7a, and a pair of first reinforcement ribs 72 clamping the release flow channel 7b in a circumferential direction and downwardly protruding.SELECTED DRAWING: Figure 2
【課題】流体の排出量を確保することによって内圧を効率的に解放し、地下構造物用蓋の飛散を抑えることができる地下構造物用蓋受枠セットを提供する。【解決手段】上端面が地上Ｇに露出した状態で埋設される受枠と、受枠の内周面に嵌合する嵌合部が設けられた側面２２を有する地下構造物用蓋２とを備え、地下構造物用蓋２の側面２２は、上部が塞がれ、嵌合部が受枠の内周面に嵌合した状態では内周面に向かって開口する内圧解放口７ａが設けられたものであり、地下構造物用蓋２は、内圧解放口７ａにつながった解放流路７ｂと、解放流路７ｂを周方向に挟んで下方へ突出した一対の第１補強リブ７２とを有するものである。【選択図】図２
LID-RECEIVING FRAME SET FOR UNDERGROUND STRUCTURE
地下構造物用蓋受枠セット
ONAMI TOYOAKI (author)
2021-10-28
Patent
Electronic Resource
Japanese
IPC:
E02D
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