Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Double-wall steel cofferdam construction process for bridge construction
The invention discloses a double-wall steel cofferdam construction technology for bridge construction. The double-wall steel cofferdam construction technology comprises the following steps that firstly, the structure and size of a double-wall steel cofferdam needed by construction of an underwater bearing platform are determined for design and manufacturing; positioning and constructing a steel trestle, a steel platform and a drilled pile; secondly, the double-wall steel cofferdam is lowered and assembled; thirdly, a bottom sealing concrete construction platform is built; step 4, carrying out a watertight experiment, and pouring concrete between the sealing bottom and the double walls; 5, pumping water, and checking the bottom sealing quality; sixthly, platform construction is conducted; seventhly, part of the steel cofferdam is dismantled; eighthly, pier columns on the upper portion of the bearing platform are constructed; wherein the bottom sealing concrete construction platform is annularly and evenly divided into a plurality of pouring areas along the double-wall steel cofferdam, a hollow partition plate is bundled between every two adjacent pouring areas through steel bars, and synchronous pouring is conducted on the multiple pouring areas at the same time through concrete pouring equipment; according to the method, unbalanced stress of the double-wall steel cofferdam can be effectively prevented, the construction quality is ensured, the construction progress is accelerated, and the engineering economic benefits are improved.
本发明公开了桥梁施工用双壁钢围堰施工工艺，包含以下步骤：步骤一：确定施工水中承台所需的双壁钢围堰的结构和尺寸进行设计制作；钢栈桥、钢平台和钻孔桩的定位和施工；步骤二：双壁钢围堰下放拼装；步骤三：搭建封底混凝土施工平台；步骤四：密水实验、浇筑封底和双壁间混凝土；步骤五：抽水、检查封底质量；步骤六：施台施工；步骤七：拆除部分钢围堰；步骤八：承台上部墩柱施工；其中，将封底混凝土施工平台沿双壁钢围堰环形平均分为多个浇筑区域，相邻两浇筑区域之间通过钢筋捆扎镂空型隔板，通过混凝土浇筑设备同时对多个浇筑区域进行同步浇筑；本发明可以有效防止双壁钢围堰受力不平衡，确保施工质量，加快施工进度，提升工程经济效益。
Double-wall steel cofferdam construction process for bridge construction
The invention discloses a double-wall steel cofferdam construction technology for bridge construction. The double-wall steel cofferdam construction technology comprises the following steps that firstly, the structure and size of a double-wall steel cofferdam needed by construction of an underwater bearing platform are determined for design and manufacturing; positioning and constructing a steel trestle, a steel platform and a drilled pile; secondly, the double-wall steel cofferdam is lowered and assembled; thirdly, a bottom sealing concrete construction platform is built; step 4, carrying out a watertight experiment, and pouring concrete between the sealing bottom and the double walls; 5, pumping water, and checking the bottom sealing quality; sixthly, platform construction is conducted; seventhly, part of the steel cofferdam is dismantled; eighthly, pier columns on the upper portion of the bearing platform are constructed; wherein the bottom sealing concrete construction platform is annularly and evenly divided into a plurality of pouring areas along the double-wall steel cofferdam, a hollow partition plate is bundled between every two adjacent pouring areas through steel bars, and synchronous pouring is conducted on the multiple pouring areas at the same time through concrete pouring equipment; according to the method, unbalanced stress of the double-wall steel cofferdam can be effectively prevented, the construction quality is ensured, the construction progress is accelerated, and the engineering economic benefits are improved.
本发明公开了桥梁施工用双壁钢围堰施工工艺，包含以下步骤：步骤一：确定施工水中承台所需的双壁钢围堰的结构和尺寸进行设计制作；钢栈桥、钢平台和钻孔桩的定位和施工；步骤二：双壁钢围堰下放拼装；步骤三：搭建封底混凝土施工平台；步骤四：密水实验、浇筑封底和双壁间混凝土；步骤五：抽水、检查封底质量；步骤六：施台施工；步骤七：拆除部分钢围堰；步骤八：承台上部墩柱施工；其中，将封底混凝土施工平台沿双壁钢围堰环形平均分为多个浇筑区域，相邻两浇筑区域之间通过钢筋捆扎镂空型隔板，通过混凝土浇筑设备同时对多个浇筑区域进行同步浇筑；本发明可以有效防止双壁钢围堰受力不平衡，确保施工质量，加快施工进度，提升工程经济效益。
Double-wall steel cofferdam construction process for bridge construction
桥梁施工用双壁钢围堰施工工艺
WANG GUANYING (Autor:in) / YE YU (Autor:in) / LIU JIWEN (Autor:in) / LONG JIAO (Autor:in) / DAI PEIYI (Autor:in) / FANG JIA (Autor:in) / FENG KAILI (Autor:in) / ZHOU JIN (Autor:in) / GAO YAN (Autor:in) / LI ERLAI (Autor:in)
06.09.2022
Patent
Elektronische Ressource
Chinesisch
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