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A platform for research: civil engineering, architecture and urbanism
Anchoring type prefabricated pier foundation suitable for slope surface and construction method of anchoring type prefabricated pier foundation
The invention provides an anchoring type prefabricated pier foundation suitable for a slope surface and a construction method of the anchoring type prefabricated pier foundation. The anchoring type prefabricated pier foundation comprises a stepped pier foundation and a pre-stressed anchor cable anchoring system, and anchor cable holes are reserved in the pier foundation; the pre-stressed anchor cable anchoring system comprises a pre-stressed anchor cable and an anchor head, and the pre-stressed anchor cable penetrates through the anchor cable hole and extends into and is fixed in the bed rock; and the pre-stressed anchor cable is locked with the pier foundation through the anchor head. The bridge pier foundation is moved to a prefabricating field to be prefabricated, the bridge pier foundation is provided with a stepped structure, the bridge pier foundation and bed rock are connected through the pre-stressed anchor cables, and the anti-sliding and anti-overturning capacity of the bridge pier foundation is improved. The construction of a large drilling machine on the side slope and the assembly and disassembly of the formwork are avoided, the excavation depth of the foundation pit of the pier foundation on the side slope is reduced, the disturbance to the stability of the slope surface is reduced, the construction difficulty of the pier foundation is reduced, the construction period is shortened, the cost is saved, the construction quality is safer and more reliable, and the requirements for transportation and hoisting equipment are low.
本发明提供了一种适用于坡面上的锚拉式预制桥墩基础及其施工方法。锚拉式预制桥墩基础包括阶梯形的桥墩基础和预应力锚索锚固系统，桥墩基础预留有锚索孔；预应力锚索锚固系统包括预应力锚索以及锚头，预应力锚索穿过锚索孔，伸入并固定在基岩内；预应力锚索通过锚头与桥墩基础锁固。本发明将桥墩基础移至预制场预制，桥墩基础设置阶梯形构造、利用预应力锚索连接桥墩基础及基岩，提升了桥墩基础抗滑移抗倾覆的能力。避免了边坡上大型钻机施工、模板的拼装与拆卸工作，缩减了边坡上桥墩基础基坑开挖深度、减少了对坡面稳定的扰动，降低了桥墩基础施工难度，缩短了施工周期，节约了成本，使施工质量更加安全可靠，而且对运输、吊装设备要求较低。
Anchoring type prefabricated pier foundation suitable for slope surface and construction method of anchoring type prefabricated pier foundation
The invention provides an anchoring type prefabricated pier foundation suitable for a slope surface and a construction method of the anchoring type prefabricated pier foundation. The anchoring type prefabricated pier foundation comprises a stepped pier foundation and a pre-stressed anchor cable anchoring system, and anchor cable holes are reserved in the pier foundation; the pre-stressed anchor cable anchoring system comprises a pre-stressed anchor cable and an anchor head, and the pre-stressed anchor cable penetrates through the anchor cable hole and extends into and is fixed in the bed rock; and the pre-stressed anchor cable is locked with the pier foundation through the anchor head. The bridge pier foundation is moved to a prefabricating field to be prefabricated, the bridge pier foundation is provided with a stepped structure, the bridge pier foundation and bed rock are connected through the pre-stressed anchor cables, and the anti-sliding and anti-overturning capacity of the bridge pier foundation is improved. The construction of a large drilling machine on the side slope and the assembly and disassembly of the formwork are avoided, the excavation depth of the foundation pit of the pier foundation on the side slope is reduced, the disturbance to the stability of the slope surface is reduced, the construction difficulty of the pier foundation is reduced, the construction period is shortened, the cost is saved, the construction quality is safer and more reliable, and the requirements for transportation and hoisting equipment are low.
本发明提供了一种适用于坡面上的锚拉式预制桥墩基础及其施工方法。锚拉式预制桥墩基础包括阶梯形的桥墩基础和预应力锚索锚固系统，桥墩基础预留有锚索孔；预应力锚索锚固系统包括预应力锚索以及锚头，预应力锚索穿过锚索孔，伸入并固定在基岩内；预应力锚索通过锚头与桥墩基础锁固。本发明将桥墩基础移至预制场预制，桥墩基础设置阶梯形构造、利用预应力锚索连接桥墩基础及基岩，提升了桥墩基础抗滑移抗倾覆的能力。避免了边坡上大型钻机施工、模板的拼装与拆卸工作，缩减了边坡上桥墩基础基坑开挖深度、减少了对坡面稳定的扰动，降低了桥墩基础施工难度，缩短了施工周期，节约了成本，使施工质量更加安全可靠，而且对运输、吊装设备要求较低。
Anchoring type prefabricated pier foundation suitable for slope surface and construction method of anchoring type prefabricated pier foundation
一种适用于坡面上的锚拉式预制桥墩基础及其施工方法
HE HUIYU (author) / YU XIANGLIANG (author) / CAO LEI (author) / HE HAN (author) / ZHOU YUE (author) / LIN QISHUN (author) / LIAN XIAOMIN (author)
2023-03-14
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Prefabricated assembled pier and forming method of prefabricated assembled pier
| European Patent Office | 2020
| European Patent Office | 2020