A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Underground diaphragm wall foundation pit construction method
The invention relates to an underground diaphragm wall foundation pit construction method which is characterized by comprising the following steps: S1, before grooving of an underground diaphragm wall, manufacturing a guide wall first, adopting a total station for lofting, and considering the construction error and convergence of a maintenance structure during the foundation pit excavation stage,adopting automobile pumps to symmetrically pour the guide wall, and carrying out form removal when the strength of the guide wall reaches 70%; S2, adopting a grooving machine for grooving of a hydraulic grab, and detecting the depth of the groove section and the perpendicularity of the wall surface of the groove section; S3, sequentially processing the bottom bar, sounding pipe, truss bar, reserved relay, pulping pipe, inclinometer, surface bar and protective layer cushion block of a reinforcement cage; S4, constructing the underground diaphragm wall body, adopting the catheter method for concrete casting, adopting a screw thread to connecting a guide pipe, and adopting an annular rubber blanket to seal the guide pipe; and S5, pulling a fore shaft pipe from the top, and according to the onsite concrete pouring log sheet to calculate the allowed top pulling height of the fore shaft pipe to realize the effect of improving the construction efficiency.
本发明涉及地下连续墙基础基坑施工方法，其技术方案要点是一种地下连续墙基础基坑施工方法，包括以下步骤：S1、在地下连续墙成槽前，先制作导墙，采用全站仪放样，考虑施工误差及基坑开挖阶段维护结构收敛；汽车泵对称浇筑导墙，导墙强度达到70%后方可拆模；S2、采用成槽机进行液压抓斗成槽，并对槽段的深度、槽段壁面的垂直度进行检测；S3、钢筋笼按底筋、声测管、桁架筋、预留接驳器、注浆管、测斜管、面筋、保护层垫块依次加工；S4、地连墙墙体施工，混凝土浇灌采用导管法浇筑，导管以丝扣连接并以环状橡胶垫密封；S5、顶拔锁口管，根据现场混凝土浇灌记录表计算锁口管允许顶拔的高度，达到提高施工效率的效果。
Underground diaphragm wall foundation pit construction method
The invention relates to an underground diaphragm wall foundation pit construction method which is characterized by comprising the following steps: S1, before grooving of an underground diaphragm wall, manufacturing a guide wall first, adopting a total station for lofting, and considering the construction error and convergence of a maintenance structure during the foundation pit excavation stage,adopting automobile pumps to symmetrically pour the guide wall, and carrying out form removal when the strength of the guide wall reaches 70%; S2, adopting a grooving machine for grooving of a hydraulic grab, and detecting the depth of the groove section and the perpendicularity of the wall surface of the groove section; S3, sequentially processing the bottom bar, sounding pipe, truss bar, reserved relay, pulping pipe, inclinometer, surface bar and protective layer cushion block of a reinforcement cage; S4, constructing the underground diaphragm wall body, adopting the catheter method for concrete casting, adopting a screw thread to connecting a guide pipe, and adopting an annular rubber blanket to seal the guide pipe; and S5, pulling a fore shaft pipe from the top, and according to the onsite concrete pouring log sheet to calculate the allowed top pulling height of the fore shaft pipe to realize the effect of improving the construction efficiency.
本发明涉及地下连续墙基础基坑施工方法，其技术方案要点是一种地下连续墙基础基坑施工方法，包括以下步骤：S1、在地下连续墙成槽前，先制作导墙，采用全站仪放样，考虑施工误差及基坑开挖阶段维护结构收敛；汽车泵对称浇筑导墙，导墙强度达到70%后方可拆模；S2、采用成槽机进行液压抓斗成槽，并对槽段的深度、槽段壁面的垂直度进行检测；S3、钢筋笼按底筋、声测管、桁架筋、预留接驳器、注浆管、测斜管、面筋、保护层垫块依次加工；S4、地连墙墙体施工，混凝土浇灌采用导管法浇筑，导管以丝扣连接并以环状橡胶垫密封；S5、顶拔锁口管，根据现场混凝土浇灌记录表计算锁口管允许顶拔的高度，达到提高施工效率的效果。
Underground diaphragm wall foundation pit construction method
地下连续墙基础基坑施工方法
CHEN XINBING (author) / PENG RUOHONG (author) / ZHONG FENGCHANG (author) / SI PENG (author) / CHEN ZHONGQI (author) / LUO JIANBIN (author) / WEN WEIDONG (author) / CHEN JINBO (author) / WANG XIA (author) / LIU JUNQING (author)
2020-06-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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