A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for double-wall steel suspension cofferdam of main bridge bearing platform of super-large bridge
The invention provides a construction method for a double-wall steel suspension cofferdam of a main bridge bearing platform of a super-large bridge. The construction method comprises the following steps that S1, steel casings are built on a river bed, and the cofferdam is assembled on the portions, above the surface of water, of the steel casings; S2, the cofferdam is laid down, and internal supports are installed in the cofferdam; S3, top-sealing concrete is poured in the cofferdam, and accumulated water in the cofferdam is drained; S4, the portions from pier bodies to the lower side of the middle internal support are built, and connecting supports are arranged between the pier bodies and the inner wall of the cofferdam and between the pier bodies; S5, the portions from the pier bodies tothe top internal support are built, and connecting supports are arranged between the pier bodies and the inner wall of the cofferdam and between the pier bodies; S6, the pier bodies are built to be above the surface of water, building of the pier bodies is completed, and building of a large bridge main pier foundation is completed. Embedded parts are arranged on the pier bodies, supporting piecesare arranged between the pier bodies and the cofferdam and between the pier bodies, the supporting pieces are connected with the embedded parts, the support of the interior of the cofferdam is enhanced, and the structural strength of the cofferdam is ensured.
本发明提供特大桥主桥承台双壁钢吊箱围堰施工方法，该施工方法包括以下步骤：S1，在河床上施工钢护筒，在钢护筒水面以上位置拼装围堰；S2，围堰下放，并在围堰中安装内支撑；S3，在围堰内浇筑封底混凝土，并抽干围堰内积水；S4，施工墩身至中层内支撑以下，在墩身与围堰内壁、墩身与墩身之间设置连接支撑；S5，施工墩身至顶内支撑以下，在墩身与围堰内壁、墩身与墩身之间设置连接支撑；S6，进行墩身施工作业，墩身施工至水面以上，完成墩身施工，大桥主墩基础施工完成。在墩身上设置预埋件，在墩身与围堰的内壁、墩身与墩身之间设置支撑件，支撑件与预埋件连接，加强了围堰内部的支撑，保证了围堰的结构强度。
Construction method for double-wall steel suspension cofferdam of main bridge bearing platform of super-large bridge
The invention provides a construction method for a double-wall steel suspension cofferdam of a main bridge bearing platform of a super-large bridge. The construction method comprises the following steps that S1, steel casings are built on a river bed, and the cofferdam is assembled on the portions, above the surface of water, of the steel casings; S2, the cofferdam is laid down, and internal supports are installed in the cofferdam; S3, top-sealing concrete is poured in the cofferdam, and accumulated water in the cofferdam is drained; S4, the portions from pier bodies to the lower side of the middle internal support are built, and connecting supports are arranged between the pier bodies and the inner wall of the cofferdam and between the pier bodies; S5, the portions from the pier bodies tothe top internal support are built, and connecting supports are arranged between the pier bodies and the inner wall of the cofferdam and between the pier bodies; S6, the pier bodies are built to be above the surface of water, building of the pier bodies is completed, and building of a large bridge main pier foundation is completed. Embedded parts are arranged on the pier bodies, supporting piecesare arranged between the pier bodies and the cofferdam and between the pier bodies, the supporting pieces are connected with the embedded parts, the support of the interior of the cofferdam is enhanced, and the structural strength of the cofferdam is ensured.
本发明提供特大桥主桥承台双壁钢吊箱围堰施工方法，该施工方法包括以下步骤：S1，在河床上施工钢护筒，在钢护筒水面以上位置拼装围堰；S2，围堰下放，并在围堰中安装内支撑；S3，在围堰内浇筑封底混凝土，并抽干围堰内积水；S4，施工墩身至中层内支撑以下，在墩身与围堰内壁、墩身与墩身之间设置连接支撑；S5，施工墩身至顶内支撑以下，在墩身与围堰内壁、墩身与墩身之间设置连接支撑；S6，进行墩身施工作业，墩身施工至水面以上，完成墩身施工，大桥主墩基础施工完成。在墩身上设置预埋件，在墩身与围堰的内壁、墩身与墩身之间设置支撑件，支撑件与预埋件连接，加强了围堰内部的支撑，保证了围堰的结构强度。
Construction method for double-wall steel suspension cofferdam of main bridge bearing platform of super-large bridge
特大桥主桥承台双壁钢吊箱围堰施工方法
ZHOU JIANG (author) / XIE GUANGSHU (author) / CHU BING (author) / HUANG ZIYANG (author) / HANG BING (author)
2020-11-24
Patent
Electronic Resource
Chinese
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