Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Flexible box type grid pier bottom protection structure
The invention discloses a flexible box type grid bridge pier bottom protection structure which comprises a bridge pier, a bearing platform arranged below the bridge pier and a plurality of pile foundations used for supporting the bearing platform, an annular permeable grid box corresponding to the bridge pier in shape is arranged on the outer side of the bridge pier, and the inner side size of the permeable grid box corresponds to the outer side size of the bridge pier. The water-permeable grating box is arranged on the bearing platform, and the top surface of the water-permeable grating box is flush with a riverbed of a corresponding river; and stones are filled in the water-permeable grating box. The bottom protection structure can effectively slow down the flow speed of water flow near the bridge pier, weakens scouring, avoids bridge body instability caused by the fact that the bottom of the bridge pier is scoured by descending water flow and a vortex system, and has a good protection effect. The problems that due to the existence of a bridge pier and a bearing platform, advancing of water flow is blocked, a local flow field around the bridge pier is changed, silt near the bridge pier moves, and a local scouring pit is formed can be effectively solved.
本发明公开了一种柔性箱式格栅桥墩护底结构，包括桥墩、设于桥墩下方的承台以及用于支撑承台的若干桩基，在桥墩外侧设有与桥墩形状对应的环形透水格栅箱，且透水格栅箱内侧尺寸和桥墩外侧尺寸对应，所述透水格栅箱设置在承台上且透水格栅箱顶面与对应河流河床平齐；所述透水格栅箱内填充有石料。该护底结构能有效减缓桥墩附近的水流流速，减弱冲刷，避免桥墩被下降水流及涡旋体系冲刷底部导致的桥体失稳，具有良好的防护效果。能有效解决由于桥梁墩、承台的存在，阻挡了水流的行进，使得桥墩周围的局部流场发生改变，导致桥墩附近的泥沙运动，形成局部冲刷坑的问题。
Flexible box type grid pier bottom protection structure
The invention discloses a flexible box type grid bridge pier bottom protection structure which comprises a bridge pier, a bearing platform arranged below the bridge pier and a plurality of pile foundations used for supporting the bearing platform, an annular permeable grid box corresponding to the bridge pier in shape is arranged on the outer side of the bridge pier, and the inner side size of the permeable grid box corresponds to the outer side size of the bridge pier. The water-permeable grating box is arranged on the bearing platform, and the top surface of the water-permeable grating box is flush with a riverbed of a corresponding river; and stones are filled in the water-permeable grating box. The bottom protection structure can effectively slow down the flow speed of water flow near the bridge pier, weakens scouring, avoids bridge body instability caused by the fact that the bottom of the bridge pier is scoured by descending water flow and a vortex system, and has a good protection effect. The problems that due to the existence of a bridge pier and a bearing platform, advancing of water flow is blocked, a local flow field around the bridge pier is changed, silt near the bridge pier moves, and a local scouring pit is formed can be effectively solved.
本发明公开了一种柔性箱式格栅桥墩护底结构，包括桥墩、设于桥墩下方的承台以及用于支撑承台的若干桩基，在桥墩外侧设有与桥墩形状对应的环形透水格栅箱，且透水格栅箱内侧尺寸和桥墩外侧尺寸对应，所述透水格栅箱设置在承台上且透水格栅箱顶面与对应河流河床平齐；所述透水格栅箱内填充有石料。该护底结构能有效减缓桥墩附近的水流流速，减弱冲刷，避免桥墩被下降水流及涡旋体系冲刷底部导致的桥体失稳，具有良好的防护效果。能有效解决由于桥梁墩、承台的存在，阻挡了水流的行进，使得桥墩周围的局部流场发生改变，导致桥墩附近的泥沙运动，形成局部冲刷坑的问题。
Flexible box type grid pier bottom protection structure
一种柔性箱式格栅桥墩护底结构
HE XIAOLONG (Autor:in) / SUN QIAN (Autor:in) / HE JINCHAO (Autor:in) / YUAN HAO (Autor:in) / LI ZHENG (Autor:in) / LIU MAOYI (Autor:in) / HU RUICHANG (Autor:in) / XIE CHUNHANG (Autor:in) / ZHOU XIDONG (Autor:in) / HU LIANGLIANG (Autor:in)
25.11.2022
Patent
Elektronische Ressource
Chinesisch
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