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A platform for research: civil engineering, architecture and urbanism
Foundation construction method of reinforced concrete superposed beam
The invention provides a foundation construction method of a reinforced concrete superposed beam, and relates to the technical field of bridge engineering. The horizontal bearing capacity of the arranged supporting piles is better than that of vertical piles, the ultimate bearing capacity of the supporting piles is higher, and the supporting piles serve as a foundation form with high adaptability, have large horizontal rigidity and can better resist impact loads, share water and soil pressure and the like; the distribution beams are arranged on the top face of the cofferdam bottom plate, then the bottom sealing concrete is poured, the cofferdam bottom plate and the distribution beams are overlapped with the bottom sealing concrete, an overall stress structure is formed, and therefore the bottom sealing thickness is optimized; a plurality of groups of rock anchors are adopted as a main anti-floating stress system of the cofferdam in a water pumping stage, so that the problems that the self weight of a single-wall cofferdam and a thin sealing bottom is relatively small, the uplift bearing capacity of an inclined supporting pile does not participate in anti-floating calculation and the like are solved.
本发明提供一种钢混叠合梁的基础施工方法，涉及桥梁工程技术领域。本发明中设置的支承桩在水平承载力方面要更加优于竖直桩，且其极限承载能力更强，作为一种很强适应性的基础形式，具有较大的水平刚度，可以更好地抵抗冲击荷载、分担水土压力等；本发明通过在围堰底板顶面布设分配梁然后浇筑封底混凝土，使围堰底板及分配梁与封底混凝土相叠合，形成整体受力结构，从而优化封底的厚度；本发明中采取了多组岩锚件作为围堰在抽水阶段的主要抗浮受力体系，从而解决单壁围堰、薄封底的自重较小、倾斜的支承桩抗拔承载力不参与抗浮计算等问题。
Foundation construction method of reinforced concrete superposed beam
The invention provides a foundation construction method of a reinforced concrete superposed beam, and relates to the technical field of bridge engineering. The horizontal bearing capacity of the arranged supporting piles is better than that of vertical piles, the ultimate bearing capacity of the supporting piles is higher, and the supporting piles serve as a foundation form with high adaptability, have large horizontal rigidity and can better resist impact loads, share water and soil pressure and the like; the distribution beams are arranged on the top face of the cofferdam bottom plate, then the bottom sealing concrete is poured, the cofferdam bottom plate and the distribution beams are overlapped with the bottom sealing concrete, an overall stress structure is formed, and therefore the bottom sealing thickness is optimized; a plurality of groups of rock anchors are adopted as a main anti-floating stress system of the cofferdam in a water pumping stage, so that the problems that the self weight of a single-wall cofferdam and a thin sealing bottom is relatively small, the uplift bearing capacity of an inclined supporting pile does not participate in anti-floating calculation and the like are solved.
本发明提供一种钢混叠合梁的基础施工方法，涉及桥梁工程技术领域。本发明中设置的支承桩在水平承载力方面要更加优于竖直桩，且其极限承载能力更强，作为一种很强适应性的基础形式，具有较大的水平刚度，可以更好地抵抗冲击荷载、分担水土压力等；本发明通过在围堰底板顶面布设分配梁然后浇筑封底混凝土，使围堰底板及分配梁与封底混凝土相叠合，形成整体受力结构，从而优化封底的厚度；本发明中采取了多组岩锚件作为围堰在抽水阶段的主要抗浮受力体系，从而解决单壁围堰、薄封底的自重较小、倾斜的支承桩抗拔承载力不参与抗浮计算等问题。
Foundation construction method of reinforced concrete superposed beam
一种钢混叠合梁的基础施工方法
YANG DINGJUN (author) / DU CHUANPENG (author) / LU WEI (author) / REN HAIBIN (author) / HUANG LIANG (author) / YU WEI (author) / XU CHUNLIN (author) / ZENG BIN (author)
2022-07-05
Patent
Electronic Resource
Chinese
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