A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Three-dimensional variable-rigidity skewback foundation and construction method thereof
The invention provides a three-dimensional variable-stiffness skewback foundation and a construction method thereof.The skewback foundation comprises a bearing platform, an enclosure structure is arranged on the outer side of the bearing platform, a first grouting body for supporting the bearing platform is arranged in the enclosure structure, and a second grouting body is further arranged on the side, away from the midspan, of the exterior of the enclosure structure; the rigidity of the first grouting body is gradually increased from the side close to the midspan to the side away from the midspan. By the adoption of the structure, excavation and replacement of a large foundation pit are not needed, environmental protection is facilitated, use of materials such as reinforced concrete or masonry is reduced, cost is saved, construction is convenient, excavation is little, and materials are saved; according to the technical scheme, under the condition that the stress requirement of the skewback foundation under different working conditions is met, the stability, safety and economical efficiency of the bridge foundation are improved, and the arch bridge foundation is particularly suitable for being built on a deep and thick pebble accumulation layer and plays a positive role in application and popularization of arch bridge foundations in soft soil layers in China.
本发明提供一种三维变刚度的拱座基础及其施工方法，拱座基础包含承台，所述承台外侧设有围护结构，所述围护结构内具有支撑所述承台的第一注浆体，所述围护结构外远离跨中一侧还具有第二注浆体，所述第一注浆体的刚度从靠近跨中一侧向远离跨中一侧逐渐增大。采用本结构无需进行大型基坑开挖换填，利于环保，减少对钢筋混凝土或砖石等材料的使用，有利于节省成本，施工方便，开挖少，材料节约，另外，第一注浆体根据拱座的受力特性，采用变刚度的方式，能够在同样满足拱座基础不同工况下受力的要求下，提高桥梁基础的稳定性、安全性和经济性，特别适用于深厚卵石堆积层上修建的拱桥基础，对我国软弱土层中的拱桥基础的推广和应用具有积极作用。
Three-dimensional variable-rigidity skewback foundation and construction method thereof
The invention provides a three-dimensional variable-stiffness skewback foundation and a construction method thereof.The skewback foundation comprises a bearing platform, an enclosure structure is arranged on the outer side of the bearing platform, a first grouting body for supporting the bearing platform is arranged in the enclosure structure, and a second grouting body is further arranged on the side, away from the midspan, of the exterior of the enclosure structure; the rigidity of the first grouting body is gradually increased from the side close to the midspan to the side away from the midspan. By the adoption of the structure, excavation and replacement of a large foundation pit are not needed, environmental protection is facilitated, use of materials such as reinforced concrete or masonry is reduced, cost is saved, construction is convenient, excavation is little, and materials are saved; according to the technical scheme, under the condition that the stress requirement of the skewback foundation under different working conditions is met, the stability, safety and economical efficiency of the bridge foundation are improved, and the arch bridge foundation is particularly suitable for being built on a deep and thick pebble accumulation layer and plays a positive role in application and popularization of arch bridge foundations in soft soil layers in China.
本发明提供一种三维变刚度的拱座基础及其施工方法，拱座基础包含承台，所述承台外侧设有围护结构，所述围护结构内具有支撑所述承台的第一注浆体，所述围护结构外远离跨中一侧还具有第二注浆体，所述第一注浆体的刚度从靠近跨中一侧向远离跨中一侧逐渐增大。采用本结构无需进行大型基坑开挖换填，利于环保，减少对钢筋混凝土或砖石等材料的使用，有利于节省成本，施工方便，开挖少，材料节约，另外，第一注浆体根据拱座的受力特性，采用变刚度的方式，能够在同样满足拱座基础不同工况下受力的要求下，提高桥梁基础的稳定性、安全性和经济性，特别适用于深厚卵石堆积层上修建的拱桥基础，对我国软弱土层中的拱桥基础的推广和应用具有积极作用。
Three-dimensional variable-rigidity skewback foundation and construction method thereof
一种三维变刚度的拱座基础及其施工方法
YI ZHIHONG (author) / LIN XIAOJUN (author) / ZHENG XUFENG (author) / ZHAO YUXIAN (author) / GONG WEIMING (author) / LIU ZHENYU (author) / ZHUO LINGJUN (author) / CHEN LI (author) / WANG CONG (author) / LUO YUANYUAN (author)
2023-11-14
Patent
Electronic Resource
Chinese
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