Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of upper-wall lower-pile type deep foundation pit support
The invention provides an upper-wall lower-pile type deep foundation pit support construction method. The method comprises the following steps that an upper underground diaphragm wall groove is constructed; a lower pouring hole is formed in the upper diaphragm wall groove; the lower reinforcement cage is tried to be hoisted, and the lower reinforcement cage is hoisted into the lower pouring hole from the upper underground diaphragm wall groove so that the installation position of the lower reinforcement cage can be positioned; after trial hoisting is completed, the lower reinforcement cage is hoisted, and the upper end of the lower reinforcement cage is made to be higher than the lower pouring hole; lifting of the lower reinforcement cage is stopped; after welding is completed, the upper underground diaphragm wall reinforcement cage and the lower reinforcement cage are integrally lowered, and it is ensured that the elevation of the upper underground diaphragm wall reinforcement cage and the elevation of the lower reinforcement cage meet the design value; and an integral pouring process. By the adoption of the construction method, it is guaranteed that the overall rigidity of the underground diaphragm wall after pouring is completed is large, supporting and retaining stress is stable, and the water stopping effect is good; and it is ensured that the underground pouring pile after pouring is completed is high in overall strength and not prone to breakage, and then the strength of the whole foundation pit support is improved.
本发明提供了一种上墙下桩式深基坑围护建造方法，包括如下步骤：建造上部地连墙槽；在所述上部地连墙槽内成型下部浇注孔；试吊下部钢筋笼，将下部钢筋笼由上部地连墙槽吊入至下部浇注孔内，以对下部钢筋笼的安装位置进行定位；完成试吊后，将下部钢筋笼起吊，使其上部端头高出下部浇注孔；停止下部钢筋龙的起吊；焊接完成后，将上部地连墙钢筋笼和下部钢筋笼整体下放，并确保上部地连墙钢筋笼和下部钢筋笼的标高符合设计值；整体浇筑过程。采用本发明提出的建造方法，确保浇筑完成后的地下连续墙整体刚度大，支挡受力稳定，止水效果好；确保浇筑完成后的地下浇筑桩整体强度高，不易断裂，进而提高整个基坑围护的强度。
Construction method of upper-wall lower-pile type deep foundation pit support
The invention provides an upper-wall lower-pile type deep foundation pit support construction method. The method comprises the following steps that an upper underground diaphragm wall groove is constructed; a lower pouring hole is formed in the upper diaphragm wall groove; the lower reinforcement cage is tried to be hoisted, and the lower reinforcement cage is hoisted into the lower pouring hole from the upper underground diaphragm wall groove so that the installation position of the lower reinforcement cage can be positioned; after trial hoisting is completed, the lower reinforcement cage is hoisted, and the upper end of the lower reinforcement cage is made to be higher than the lower pouring hole; lifting of the lower reinforcement cage is stopped; after welding is completed, the upper underground diaphragm wall reinforcement cage and the lower reinforcement cage are integrally lowered, and it is ensured that the elevation of the upper underground diaphragm wall reinforcement cage and the elevation of the lower reinforcement cage meet the design value; and an integral pouring process. By the adoption of the construction method, it is guaranteed that the overall rigidity of the underground diaphragm wall after pouring is completed is large, supporting and retaining stress is stable, and the water stopping effect is good; and it is ensured that the underground pouring pile after pouring is completed is high in overall strength and not prone to breakage, and then the strength of the whole foundation pit support is improved.
本发明提供了一种上墙下桩式深基坑围护建造方法，包括如下步骤：建造上部地连墙槽；在所述上部地连墙槽内成型下部浇注孔；试吊下部钢筋笼，将下部钢筋笼由上部地连墙槽吊入至下部浇注孔内，以对下部钢筋笼的安装位置进行定位；完成试吊后，将下部钢筋笼起吊，使其上部端头高出下部浇注孔；停止下部钢筋龙的起吊；焊接完成后，将上部地连墙钢筋笼和下部钢筋笼整体下放，并确保上部地连墙钢筋笼和下部钢筋笼的标高符合设计值；整体浇筑过程。采用本发明提出的建造方法，确保浇筑完成后的地下连续墙整体刚度大，支挡受力稳定，止水效果好；确保浇筑完成后的地下浇筑桩整体强度高，不易断裂，进而提高整个基坑围护的强度。
Construction method of upper-wall lower-pile type deep foundation pit support
上墙下桩式深基坑围护建造方法
FU HUAYONG (Autor:in) / CHEN TIANPING (Autor:in) / LAN YANGBIN (Autor:in) / LI HAILONG (Autor:in) / ZHANG MENG (Autor:in) / XU PENGFEI (Autor:in)
13.09.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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