A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Open caisson positioning system and open caisson construction method
The invention relates to the technical field of bridge engineering, in particular to an open caisson positioning system and an open caisson construction method.The open caisson positioning method comprises the following steps that a foundation pit is excavated in a target area of an open caisson; lowering an open caisson foundation into the foundation pit until the open caisson foundation falls to the target area; and a protection foundation is built in the foundation pit. According to the method, the foundation pit is excavated in the target area before the open caisson is excavated, the gravels are dug in time to build the protection foundation after the open caisson is implanted, the riverbed protection effect is achieved, the step of continuously taking soil for sinking in the open caisson process is replaced, and the method has the great advantages in the aspects of saving the construction period, reducing the construction risk, reducing the construction investment and the like. The positioning system cable pulling system is optimized, the characteristic that the huge open caisson can generate large restoring torque is fully utilized, a single-layer cable pulling system is adopted to replace a conventional upper and lower double-layer cable pulling system, and the number of pulling cables needed by the positioning system cable pulling system is reduced by half.
本申请涉及桥梁工程技术领域，具体涉及一种沉井定位系统及沉井施工方法，其包括以下步骤：在沉井的目标区域开挖基坑；向所述基坑下放沉井基础直至其落位到所述目标区域；在所述基坑内建造防护基础。本发明在沉井前在目标区域开挖基坑，并在沉井着床后及时抛填碎石修筑防护基础，不仅起到了防护河床作用而且取代了沉井过程中需要不断取土下沉的步骤，在节约工期、降低施工风险、减少施工投入等方面具备极大优势。本发明优化了定位系统拉缆体系，充分利用巨型沉井自身能产生较大复原力矩特性，采用单层拉缆体系代替常规上下双层拉缆体系，使得定位系统拉缆体系所需拉缆数量减少一半。
Open caisson positioning system and open caisson construction method
The invention relates to the technical field of bridge engineering, in particular to an open caisson positioning system and an open caisson construction method.The open caisson positioning method comprises the following steps that a foundation pit is excavated in a target area of an open caisson; lowering an open caisson foundation into the foundation pit until the open caisson foundation falls to the target area; and a protection foundation is built in the foundation pit. According to the method, the foundation pit is excavated in the target area before the open caisson is excavated, the gravels are dug in time to build the protection foundation after the open caisson is implanted, the riverbed protection effect is achieved, the step of continuously taking soil for sinking in the open caisson process is replaced, and the method has the great advantages in the aspects of saving the construction period, reducing the construction risk, reducing the construction investment and the like. The positioning system cable pulling system is optimized, the characteristic that the huge open caisson can generate large restoring torque is fully utilized, a single-layer cable pulling system is adopted to replace a conventional upper and lower double-layer cable pulling system, and the number of pulling cables needed by the positioning system cable pulling system is reduced by half.
本申请涉及桥梁工程技术领域，具体涉及一种沉井定位系统及沉井施工方法，其包括以下步骤：在沉井的目标区域开挖基坑；向所述基坑下放沉井基础直至其落位到所述目标区域；在所述基坑内建造防护基础。本发明在沉井前在目标区域开挖基坑，并在沉井着床后及时抛填碎石修筑防护基础，不仅起到了防护河床作用而且取代了沉井过程中需要不断取土下沉的步骤，在节约工期、降低施工风险、减少施工投入等方面具备极大优势。本发明优化了定位系统拉缆体系，充分利用巨型沉井自身能产生较大复原力矩特性，采用单层拉缆体系代替常规上下双层拉缆体系，使得定位系统拉缆体系所需拉缆数量减少一半。
Open caisson positioning system and open caisson construction method
一种沉井定位系统及沉井施工方法
GAO SHUANGJIAN (author) / DENG YUPING (author) / XU JIAPING (author) / SONG XIAOSAN (author) / YU XIANGJUN (author) / ZHAO XIAOJING (author) / LIU RUNZE (author) / HE JIAJIANG (author) / LIANG WEI (author) / XU QILI (author)
2022-03-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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