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A platform for research: civil engineering, architecture and urbanism
Bridge bearing platform foundation for near-shore inclined bare rock area and construction method
The invention relates to a bridge bearing platform foundation for a near-shore inclined bare rock area and a construction method. The method comprises the following steps that firstly, the near-shore inclined bare rock area is back-filled with stones to form an island-building type construction platform; then, on the stone island-building type construction platform, according to a bridge foundation occlusion type row pile structure, an auxiliary occlusion type row pile enclosure structure is constructed on the periphery of the edge of the bridge foundation occlusion type row pile structure, a closed type water stop continuous wall is formed, grouting is conducted in the enclosure structure and in the bridge foundation area, and gaps between the back-filled stones are blocked; finally, bridge foundation occlusion type row piles are constructed to serve as permanent pile foundations, backfill soil in the enclosure structure is excavated, and a bridge foundation bearing platform is constructed. According to the structure, external water is prevented from permeating into the back-filled stones, the construction quality of permanent pile foundation concrete is ensured, invasion of peripheral water is avoided during bearing platform construction, investment of formworks is reduced, the construction difficulty is lowered, the construction efficiency is improved, and the construction cost is saved.
本发明涉及一种用于临岸倾斜裸岩区的桥梁承台基础及施工方法。该方法先对临岸倾斜裸岩区采用石料进行回填形成筑岛式施工平台；然后在石料筑岛式施工平台上，根据桥梁基础咬合式排桩结构，在其边缘外围施工辅助咬合式排桩围护结构，形成闭合式止水连续墙，在围护结构内，桥梁基础区域进行注浆，将回填石料之间空隙堵塞；最后施工桥梁基础咬合式排桩作为永久性桩基，开挖围护结构内回填土体，施工桥梁基础承台。本发明的结构防止外部的水渗透至回填石料中，不仅确保了永久性桩基混凝土的施工质量，而且在承台施工时避免了外围水的侵入，减少了模板的投入，降低了施工难度，提高了施工效率，节约了施工成本。
Bridge bearing platform foundation for near-shore inclined bare rock area and construction method
The invention relates to a bridge bearing platform foundation for a near-shore inclined bare rock area and a construction method. The method comprises the following steps that firstly, the near-shore inclined bare rock area is back-filled with stones to form an island-building type construction platform; then, on the stone island-building type construction platform, according to a bridge foundation occlusion type row pile structure, an auxiliary occlusion type row pile enclosure structure is constructed on the periphery of the edge of the bridge foundation occlusion type row pile structure, a closed type water stop continuous wall is formed, grouting is conducted in the enclosure structure and in the bridge foundation area, and gaps between the back-filled stones are blocked; finally, bridge foundation occlusion type row piles are constructed to serve as permanent pile foundations, backfill soil in the enclosure structure is excavated, and a bridge foundation bearing platform is constructed. According to the structure, external water is prevented from permeating into the back-filled stones, the construction quality of permanent pile foundation concrete is ensured, invasion of peripheral water is avoided during bearing platform construction, investment of formworks is reduced, the construction difficulty is lowered, the construction efficiency is improved, and the construction cost is saved.
本发明涉及一种用于临岸倾斜裸岩区的桥梁承台基础及施工方法。该方法先对临岸倾斜裸岩区采用石料进行回填形成筑岛式施工平台；然后在石料筑岛式施工平台上，根据桥梁基础咬合式排桩结构，在其边缘外围施工辅助咬合式排桩围护结构，形成闭合式止水连续墙，在围护结构内，桥梁基础区域进行注浆，将回填石料之间空隙堵塞；最后施工桥梁基础咬合式排桩作为永久性桩基，开挖围护结构内回填土体，施工桥梁基础承台。本发明的结构防止外部的水渗透至回填石料中，不仅确保了永久性桩基混凝土的施工质量，而且在承台施工时避免了外围水的侵入，减少了模板的投入，降低了施工难度，提高了施工效率，节约了施工成本。
Bridge bearing platform foundation for near-shore inclined bare rock area and construction method
一种用于临岸倾斜裸岩区的桥梁承台基础及施工方法
SHI HUQIANG (author) / WANG YAN (author) / LUO ZHAOFA (author) / ZHOU BIN (author) / CHEN GANG (author) / LIU JIAXI (author) / ZHAO WENKAI (author)
2021-06-15
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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