Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pile foundation underpinning construction method
The invention discloses a pile foundation underpinning construction method. The pile foundation underpinning construction method comprises the steps that after fender piles and underpinning piles areconstructed, a foundation pit is excavated, underpinning beams connected with a pile foundation to be underpinned is constructed, then the underpinning beams is jacked, after jacking, reserved connecting steel bars of the underpinning piles and the underpinning beams are connected, micro-expansion concrete is adopted for sealing the piles, finally, the foundation pit is backfilled, and the whole pile foundation underpinning construction is completed. The pile foundation underpinning construction method is easy and convenient to construct, simple in process and easy to implement and operate. The connecting steel bars reserved at the tops of the underpinning piles and connecting steel bars reserved at the bottoms of the underpinning beams are connected after jacking, and then micro-expansionconcrete sealing piles are poured into gaps between the underpinning piles and the underpinning beams, the structural strength and stability of the whole underpinning structure after the underpinningpiles and the underpinning beams are connected can be improved, and the underpinning construction quality and safety are improved.
本发明公开了一种桩基托换施工方法，该方法是在施工完成围护桩和托换桩后，开挖基坑并施工与待托换桩基连接的托换梁，再对托换梁进行顶升，顶升后连接托换桩和托换梁预留的连接钢筋并采用微膨胀混凝土封桩，最后将基坑回填即完成整个桩基托换施工。其施工简便、流程简单、易于实施操作，在顶升后将托换桩顶部预留的连接钢筋和托换梁底部预留的连接钢筋连接，再向托换桩和托换梁之间的间隙中浇筑微膨胀混凝土封桩，可提高托换桩和托换梁连接后整个托换结构的结构强度和稳定性，提高托换施工质量和安全性。
Pile foundation underpinning construction method
The invention discloses a pile foundation underpinning construction method. The pile foundation underpinning construction method comprises the steps that after fender piles and underpinning piles areconstructed, a foundation pit is excavated, underpinning beams connected with a pile foundation to be underpinned is constructed, then the underpinning beams is jacked, after jacking, reserved connecting steel bars of the underpinning piles and the underpinning beams are connected, micro-expansion concrete is adopted for sealing the piles, finally, the foundation pit is backfilled, and the whole pile foundation underpinning construction is completed. The pile foundation underpinning construction method is easy and convenient to construct, simple in process and easy to implement and operate. The connecting steel bars reserved at the tops of the underpinning piles and connecting steel bars reserved at the bottoms of the underpinning beams are connected after jacking, and then micro-expansionconcrete sealing piles are poured into gaps between the underpinning piles and the underpinning beams, the structural strength and stability of the whole underpinning structure after the underpinningpiles and the underpinning beams are connected can be improved, and the underpinning construction quality and safety are improved.
本发明公开了一种桩基托换施工方法，该方法是在施工完成围护桩和托换桩后，开挖基坑并施工与待托换桩基连接的托换梁，再对托换梁进行顶升，顶升后连接托换桩和托换梁预留的连接钢筋并采用微膨胀混凝土封桩，最后将基坑回填即完成整个桩基托换施工。其施工简便、流程简单、易于实施操作，在顶升后将托换桩顶部预留的连接钢筋和托换梁底部预留的连接钢筋连接，再向托换桩和托换梁之间的间隙中浇筑微膨胀混凝土封桩，可提高托换桩和托换梁连接后整个托换结构的结构强度和稳定性，提高托换施工质量和安全性。
Pile foundation underpinning construction method
一种桩基托换施工方法
ZHOU HAO (Autor:in) / LIU HENG (Autor:in) / ZHOU YUEWEI (Autor:in) / MIN JIAN (Autor:in) / LI YANJUN (Autor:in) / PENG ZUMIN (Autor:in)
26.02.2021
Patent
Elektronische Ressource
Chinesisch
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