A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method of bottomless boxed cofferdam suitable for underwater complex geological conditions
The invention relates to a construction method of a bottomless pouring jacket cofferdam suitable for underwater complex geological conditions, which comprises the following steps of: pouring jacket splicing: utilizing a temporary splicing platform built on an existing building to splice a plurality of wall plates to form an independent pouring jacket; lowering the pouring jacket: on the construction platform, utilizing a suspension lowering mechanism to hoist the pouring jacket through a hoist, utilizing a driving mechanism to drive the pouring jacket, taking a set interval as a lowering action once, and inserting and lowering the pouring jacket to a preset position through a plurality of lowering actions; pouring is conducted, specifically, pouring is conducted on the pouring jackets lowered to the bottom through a guide pipe method, so that a closed cofferdam structure is formed; the existing pile foundation is cut off, specifically, when the poured cofferdam structure reaches the preset strength, a steel casing in the existing building is cut off step by step in a segmented mode, and impurities in the steel casing and impurities in the cofferdam are cleared away; the Larsen steel sheet piles are pulled out through a vibratory hammer, and the steel jacket cofferdam can be dismantled after the pier columns come out of water. The construction method is simple and high in efficiency.
本发明涉及一种适用于水下复杂地质情况的无底套箱围堰的施工方法，包括以下步骤，套箱拼装：利用既有建筑上搭建的临时拼装平台，将若干壁板拼装，形成单独的套箱；套箱下放：在施工平台上，利用悬挂下放机构，通过起吊吊起套箱，利用驱动机构，驱动套箱，以设定间距为一次下放动作，通过若干次的下放动作，将套箱插入下放至预定位置；浇筑：利用导管法，对下放至底部的套箱进行浇筑，使其形成封闭式的围堰结构；既有桩基的割除：浇筑的围堰结构达到预定强度时，分段逐步割除既有建筑中的钢护筒，并清理钢护筒内以及围堰内的杂质；套箱的拆除：采用振动锤将拉森钢板桩拔除，待墩柱出水后，可进行钢套箱围堰拆除。本发明施工方法简单，效率高。
Construction method of bottomless boxed cofferdam suitable for underwater complex geological conditions
The invention relates to a construction method of a bottomless pouring jacket cofferdam suitable for underwater complex geological conditions, which comprises the following steps of: pouring jacket splicing: utilizing a temporary splicing platform built on an existing building to splice a plurality of wall plates to form an independent pouring jacket; lowering the pouring jacket: on the construction platform, utilizing a suspension lowering mechanism to hoist the pouring jacket through a hoist, utilizing a driving mechanism to drive the pouring jacket, taking a set interval as a lowering action once, and inserting and lowering the pouring jacket to a preset position through a plurality of lowering actions; pouring is conducted, specifically, pouring is conducted on the pouring jackets lowered to the bottom through a guide pipe method, so that a closed cofferdam structure is formed; the existing pile foundation is cut off, specifically, when the poured cofferdam structure reaches the preset strength, a steel casing in the existing building is cut off step by step in a segmented mode, and impurities in the steel casing and impurities in the cofferdam are cleared away; the Larsen steel sheet piles are pulled out through a vibratory hammer, and the steel jacket cofferdam can be dismantled after the pier columns come out of water. The construction method is simple and high in efficiency.
本发明涉及一种适用于水下复杂地质情况的无底套箱围堰的施工方法，包括以下步骤，套箱拼装：利用既有建筑上搭建的临时拼装平台，将若干壁板拼装，形成单独的套箱；套箱下放：在施工平台上，利用悬挂下放机构，通过起吊吊起套箱，利用驱动机构，驱动套箱，以设定间距为一次下放动作，通过若干次的下放动作，将套箱插入下放至预定位置；浇筑：利用导管法，对下放至底部的套箱进行浇筑，使其形成封闭式的围堰结构；既有桩基的割除：浇筑的围堰结构达到预定强度时，分段逐步割除既有建筑中的钢护筒，并清理钢护筒内以及围堰内的杂质；套箱的拆除：采用振动锤将拉森钢板桩拔除，待墩柱出水后，可进行钢套箱围堰拆除。本发明施工方法简单，效率高。
Construction method of bottomless boxed cofferdam suitable for underwater complex geological conditions
一种适用于水下复杂地质情况的无底套箱围堰的施工方法
HOU XIPING (author) / CAI JUNHUI (author) / YUE HAOHUI (author)
2022-04-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
Steel boxed cofferdam and positioning construction method
| European Patent Office | 2015
Single-wall double-chamber steel boxed cofferdam and construction method thereof
| European Patent Office | 2023
Modularized rapidly-assembled steel boxed cofferdam structure and construction method thereof
| European Patent Office | 2023
Double-wall steel cofferdam construction method suitable for complex conditions
| European Patent Office | 2023
Cemented pebble geological cofferdam construction method and cofferdam structure
| European Patent Office | 2022