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A platform for research: civil engineering, architecture and urbanism
Double-wall steel cofferdam construction method
The invention belongs to the technical field of cofferdams for water conservancy projects, and provides a double-wall steel cofferdam construction method which comprises the following steps: step 1, after pile foundation construction is completed, a drilling platform is dismantled; secondly, an assembling platform is installed on the steel casing; thirdly, the double-wall steel cofferdam is assembled and lowered, specifically, firstly, the first section of the double-wall steel cofferdam is assembled on an assembling platform, then a hoisting and lowering system is installed on the top of a steel casing, and a guiding system is installed on the periphery of the steel casing; the first-section double-wall steel cofferdam is hoisted through a hoisting system, the part, hindering lowering, in the assembling platform is dismantled, and then the first-section double-wall steel cofferdam is lowered through the hoisting system; then, the subsequent sections of double-wall steel cofferdams are spliced and lowered; fourthly, after the double-wall steel cofferdam is lowered in place, bottom sealing construction is conducted; and fifthly, multiple layers of inner supports are installed in the double-wall steel cofferdam. The construction method of the double-wall steel cofferdam has the advantages of being simple, convenient to operate, good in splicing quality and high in lowering precision.
本发明属于水利工程用围堰技术领域，提供一种双壁钢围堰施工方法，包括以下步骤：步骤一，在桩基施工完成后，拆除钻孔平台；步骤二，在钢护筒上安装拼装平台；步骤三，双壁钢围堰的拼装和下放：首先在拼装平台上进行首节双壁钢围堰的拼装，然后在钢护筒的顶部安装吊放系统，并在钢护筒的外周安装导向系统；通过吊放系统将首节双壁钢围堰吊起，拆除拼装平台中阻碍下放的部分，接着采用吊放系统下放首节双壁围堰；接着进行后续各节双壁钢围堰的拼装和下放；步骤四，双壁钢围堰下放就位后，进行封底施工；步骤五，在双壁钢围堰内部安装多层内支撑。本发明的双壁钢围堰施工方法具有方法简单，便于操作，且拼装质量好和下放精度高的优点。
Double-wall steel cofferdam construction method
The invention belongs to the technical field of cofferdams for water conservancy projects, and provides a double-wall steel cofferdam construction method which comprises the following steps: step 1, after pile foundation construction is completed, a drilling platform is dismantled; secondly, an assembling platform is installed on the steel casing; thirdly, the double-wall steel cofferdam is assembled and lowered, specifically, firstly, the first section of the double-wall steel cofferdam is assembled on an assembling platform, then a hoisting and lowering system is installed on the top of a steel casing, and a guiding system is installed on the periphery of the steel casing; the first-section double-wall steel cofferdam is hoisted through a hoisting system, the part, hindering lowering, in the assembling platform is dismantled, and then the first-section double-wall steel cofferdam is lowered through the hoisting system; then, the subsequent sections of double-wall steel cofferdams are spliced and lowered; fourthly, after the double-wall steel cofferdam is lowered in place, bottom sealing construction is conducted; and fifthly, multiple layers of inner supports are installed in the double-wall steel cofferdam. The construction method of the double-wall steel cofferdam has the advantages of being simple, convenient to operate, good in splicing quality and high in lowering precision.
本发明属于水利工程用围堰技术领域，提供一种双壁钢围堰施工方法，包括以下步骤：步骤一，在桩基施工完成后，拆除钻孔平台；步骤二，在钢护筒上安装拼装平台；步骤三，双壁钢围堰的拼装和下放：首先在拼装平台上进行首节双壁钢围堰的拼装，然后在钢护筒的顶部安装吊放系统，并在钢护筒的外周安装导向系统；通过吊放系统将首节双壁钢围堰吊起，拆除拼装平台中阻碍下放的部分，接着采用吊放系统下放首节双壁围堰；接着进行后续各节双壁钢围堰的拼装和下放；步骤四，双壁钢围堰下放就位后，进行封底施工；步骤五，在双壁钢围堰内部安装多层内支撑。本发明的双壁钢围堰施工方法具有方法简单，便于操作，且拼装质量好和下放精度高的优点。
Double-wall steel cofferdam construction method
一种双壁钢围堰施工方法
LI YONG (author) / HU ZHUKUI (author) / WU DEHUA (author) / WANG ANHUI (author) / ZHANG JIESHENG (author) / LI WEIWEI (author) / ZHANG ZHAO (author) / SU HAOCHUAN (author) / SHENG LONGDE (author) / YUAN JINGLEI (author)
2022-07-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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