A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deep large-diameter open caisson construction method
The invention discloses a construction method for a deep large-diameter open caisson. The construction method comprises the following steps that firstly, a foundation pit is excavated to the sinking elevation; secondly, a cushion layer is constructed in the foundation pit, a plain concrete cushion layer is arranged on a sand cushion layer at the bottom, and the width of the sand cushion layer is calculated through a set calculation formula; thirdly, sinking is conducted through open caisson pouring construction, and segmented manufacturing and segmented sinking are conducted; during pouring of each section, double rows of scaffolds are arranged on the inner side and the outer side of the shaft, the outer side support is of a bottom falling type, the inner side support is of an overhanging type, the outer side support and the inner side support are connected into a whole, formwork erecting pouring is carried out section by section, and reinstallation is carried out when concrete of each section is poured, the inner side support is dismantled and the next section is constructed; after pouring is completed, excavation and sinking are conducted again, and circulation is conducted in sequence till the open caisson sinks to the bottom falling elevation; and fourthly, the open caisson is subjected to bottom sealing. The method has the advantages of safety, economy, applicability, high working efficiency and the like.
本发明公开了一种深大直径沉井施工方法，包括如下步骤：步骤一、基坑开挖至起沉标高；步骤二、在基坑内施工垫层，底部的砂垫层上设置素混凝土垫层，砂垫层的宽度通过设定的计算公式计算；步骤三、沉井浇筑施工下沉，分节制作，分节下沉；在每节浇筑时，在井筒内外两侧布置双排脚手架，其中外侧支架为落底式，内侧支架为悬挑式，外侧支架和内侧支架连接为一体，分节段进行立模浇筑，每浇筑一节混凝土，拆除内侧支架，待施工下一节混凝土时再重新安装，浇筑完成后再开挖下沉，依次循环直至沉井下沉至落底标高；步骤四、沉井封底。本发明具有安全性、经济性、适用性、工效高等优点。
Deep large-diameter open caisson construction method
The invention discloses a construction method for a deep large-diameter open caisson. The construction method comprises the following steps that firstly, a foundation pit is excavated to the sinking elevation; secondly, a cushion layer is constructed in the foundation pit, a plain concrete cushion layer is arranged on a sand cushion layer at the bottom, and the width of the sand cushion layer is calculated through a set calculation formula; thirdly, sinking is conducted through open caisson pouring construction, and segmented manufacturing and segmented sinking are conducted; during pouring of each section, double rows of scaffolds are arranged on the inner side and the outer side of the shaft, the outer side support is of a bottom falling type, the inner side support is of an overhanging type, the outer side support and the inner side support are connected into a whole, formwork erecting pouring is carried out section by section, and reinstallation is carried out when concrete of each section is poured, the inner side support is dismantled and the next section is constructed; after pouring is completed, excavation and sinking are conducted again, and circulation is conducted in sequence till the open caisson sinks to the bottom falling elevation; and fourthly, the open caisson is subjected to bottom sealing. The method has the advantages of safety, economy, applicability, high working efficiency and the like.
本发明公开了一种深大直径沉井施工方法，包括如下步骤：步骤一、基坑开挖至起沉标高；步骤二、在基坑内施工垫层，底部的砂垫层上设置素混凝土垫层，砂垫层的宽度通过设定的计算公式计算；步骤三、沉井浇筑施工下沉，分节制作，分节下沉；在每节浇筑时，在井筒内外两侧布置双排脚手架，其中外侧支架为落底式，内侧支架为悬挑式，外侧支架和内侧支架连接为一体，分节段进行立模浇筑，每浇筑一节混凝土，拆除内侧支架，待施工下一节混凝土时再重新安装，浇筑完成后再开挖下沉，依次循环直至沉井下沉至落底标高；步骤四、沉井封底。本发明具有安全性、经济性、适用性、工效高等优点。
Deep large-diameter open caisson construction method
一种深大直径沉井施工方法
YAO YIXING (author) / XU TING (author) / WU YINBAO (author) / CHEN WEIMIN (author) / YAN LIANSHUAI (author) / CHEN DAN (author) / ZHANG JINYU (author) / HU RUICHENG (author) / XU YANLEI (author) / CHEN LINYAO (author)
2023-12-05
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Large-diameter open caisson casing pipe and large-diameter vertical shaft construction method
| European Patent Office | 2023
Complex geology land large-diameter open caisson whole process construction method
| European Patent Office | 2024
Open caisson construction method and open caisson structure
| European Patent Office | 2020
Open caisson construction method and open caisson structure
| European Patent Office | 2023
Open caisson structure and open caisson construction method
| European Patent Office | 2020