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A platform for research: civil engineering, architecture and urbanism
Active control type fabricated open caisson construction system and construction method
The invention discloses an active control type fabricated open caisson construction system and method. The system comprises a pipe piece system (1), a pressure increasing system (2), a soil taking system (3) and a mud jacking system (4). The segment system comprises a blade foot joint assembly and a prefabricated pipe joint, the blade foot joint assembly is constructed on a soil body (11), the prefabricated pipe joint is installed on the blade foot joint assembly, the multiple sets of pressure lifting systems are arranged on the periphery of the segment system in the circumferential direction, and the segment system sinks into the soil body through the pressure lifting systems; the soil sampling system is arranged on the blade foot joint assembly, converts a soil body into slurry and then discharges the slurry; the grouting systems are arranged on the periphery of the duct piece system and conduct grouting on the side wall of the duct piece system to form a wall protecting structure. The problems that when the sinking depth of the open caisson main body structure is large or the sinking stratum is weak, water pumping is adopted for forced sinking under the situation that sinking is difficult, sudden super sinking and sinking deflection of the open caisson main body structure are caused, soil mass loss is caused by follow-up repeated deviation correction, and sedimentation of surrounding stratums is greatly influenced are solved.
本发明公开了一种主动控制型装配式沉井施工系统及施工方法，该系统包括管片系统(1)、提压系统(2)、取土系统(3)和压浆系统(4)；管片系统包括刃脚节组件和预制管节，刃脚节组件施工在土体(11)上，预制管节装在刃脚节组件上，若干组提压系统周向设在管片系统四周，管片系统通过提压系统下沉至土体内；取土系统设在刃脚节组件上并将土体转换成泥浆后排出；若干组压浆系统设在管片系统四周并在管片系统侧壁上压注泥浆形成护壁结构。本发明解决了当沉井主体结构下沉深度较深或下沉地层软弱时，在下沉困难情况下采用抽水强迫下沉引发沉井主体结构突超沉、下沉歪斜偏位、后续反复纠偏导致土体损失、对周边地层沉降产生较大影响的问题。
Active control type fabricated open caisson construction system and construction method
The invention discloses an active control type fabricated open caisson construction system and method. The system comprises a pipe piece system (1), a pressure increasing system (2), a soil taking system (3) and a mud jacking system (4). The segment system comprises a blade foot joint assembly and a prefabricated pipe joint, the blade foot joint assembly is constructed on a soil body (11), the prefabricated pipe joint is installed on the blade foot joint assembly, the multiple sets of pressure lifting systems are arranged on the periphery of the segment system in the circumferential direction, and the segment system sinks into the soil body through the pressure lifting systems; the soil sampling system is arranged on the blade foot joint assembly, converts a soil body into slurry and then discharges the slurry; the grouting systems are arranged on the periphery of the duct piece system and conduct grouting on the side wall of the duct piece system to form a wall protecting structure. The problems that when the sinking depth of the open caisson main body structure is large or the sinking stratum is weak, water pumping is adopted for forced sinking under the situation that sinking is difficult, sudden super sinking and sinking deflection of the open caisson main body structure are caused, soil mass loss is caused by follow-up repeated deviation correction, and sedimentation of surrounding stratums is greatly influenced are solved.
本发明公开了一种主动控制型装配式沉井施工系统及施工方法，该系统包括管片系统(1)、提压系统(2)、取土系统(3)和压浆系统(4)；管片系统包括刃脚节组件和预制管节，刃脚节组件施工在土体(11)上，预制管节装在刃脚节组件上，若干组提压系统周向设在管片系统四周，管片系统通过提压系统下沉至土体内；取土系统设在刃脚节组件上并将土体转换成泥浆后排出；若干组压浆系统设在管片系统四周并在管片系统侧壁上压注泥浆形成护壁结构。本发明解决了当沉井主体结构下沉深度较深或下沉地层软弱时，在下沉困难情况下采用抽水强迫下沉引发沉井主体结构突超沉、下沉歪斜偏位、后续反复纠偏导致土体损失、对周边地层沉降产生较大影响的问题。
Active control type fabricated open caisson construction system and construction method
主动控制型装配式沉井施工系统及施工方法
ZHU YANFEI (author) / PAN WEIQIANG (author) / WANG YANJIE (author) / GUO YAN (author) / PEI LIEFENG (author) / LIU XIDONG (author) / CAI FAN (author) / WU WENFEI (author) / ZHU YING (author) / LI HAO (author)
2023-04-11
Patent
Electronic Resource
Chinese
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