Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater bottom sealing construction method for ultra-large and ultra-deep sinking well
The invention discloses an under-water bottom sealing construction method for a super-large and super-deep sinking well, which comprises the following steps: in a concrete first-pouring process, the bottom of a sinking well is not completely formed, a water body in the well is connected with a Yangtze River water body through a soil body, the water level in the well is kept stable, and the elevation of a steel guide pipe is not changed; a complete whole capable of keeping the volume of a water body in the well unchanged is formed through the well wall of the open caisson and well bottom concrete, the steel guide pipe erected on the steel floating box water construction platform is automatically lifted through the buoyancy of the steel floating box in the water level rising process, and the guide pipe does not need to be lifted manually in cooperation with a truck crane or detached manually. The number of the steel buoyancy tank overwater construction platforms and the volume of the funnels of the steel guide pipes are consistent with the total volume of concrete, the total volume of the funnels is equal to the volume of the concrete in first pouring, the steel buoyancy tank overwater construction platforms are evenly arranged on the water surface in the open caisson in the placing process, and the burying depth of the guide pipes in the concrete is easy to control. The method is particularly suitable for the field of non-drainage open caisson construction.
本发明公开了一种超大超深沉井水下封底施工方法，混凝土首灌过程中，沉井底部锅底未完全形成，井内水体通过土体与长江水体相连，井内水位维持稳定，钢导管高程不变，在首灌完成后的混凝土浇筑阶段，通过沉井井壁与井底混凝土形成了可以维持井内水体体积不变的完整整体，利用水位上升过程中钢浮箱浮力，自动提升架设于钢浮箱水上施工平台的钢导管，无需人工配合汽车吊提升导管，无需人工拆卸导管。钢浮箱水上施工平台的数量和钢导管的漏斗容积与混凝土总方量一致，漏斗的合计总容积与首灌中的混凝土方量相等，钢浮箱水上施工平台在安放过程中均匀地安置在沉井内水面上导管于混凝土内埋深易于控制，特别适用于不排水法沉井施工领域。
Underwater bottom sealing construction method for ultra-large and ultra-deep sinking well
The invention discloses an under-water bottom sealing construction method for a super-large and super-deep sinking well, which comprises the following steps: in a concrete first-pouring process, the bottom of a sinking well is not completely formed, a water body in the well is connected with a Yangtze River water body through a soil body, the water level in the well is kept stable, and the elevation of a steel guide pipe is not changed; a complete whole capable of keeping the volume of a water body in the well unchanged is formed through the well wall of the open caisson and well bottom concrete, the steel guide pipe erected on the steel floating box water construction platform is automatically lifted through the buoyancy of the steel floating box in the water level rising process, and the guide pipe does not need to be lifted manually in cooperation with a truck crane or detached manually. The number of the steel buoyancy tank overwater construction platforms and the volume of the funnels of the steel guide pipes are consistent with the total volume of concrete, the total volume of the funnels is equal to the volume of the concrete in first pouring, the steel buoyancy tank overwater construction platforms are evenly arranged on the water surface in the open caisson in the placing process, and the burying depth of the guide pipes in the concrete is easy to control. The method is particularly suitable for the field of non-drainage open caisson construction.
本发明公开了一种超大超深沉井水下封底施工方法，混凝土首灌过程中，沉井底部锅底未完全形成，井内水体通过土体与长江水体相连，井内水位维持稳定，钢导管高程不变，在首灌完成后的混凝土浇筑阶段，通过沉井井壁与井底混凝土形成了可以维持井内水体体积不变的完整整体，利用水位上升过程中钢浮箱浮力，自动提升架设于钢浮箱水上施工平台的钢导管，无需人工配合汽车吊提升导管，无需人工拆卸导管。钢浮箱水上施工平台的数量和钢导管的漏斗容积与混凝土总方量一致，漏斗的合计总容积与首灌中的混凝土方量相等，钢浮箱水上施工平台在安放过程中均匀地安置在沉井内水面上导管于混凝土内埋深易于控制，特别适用于不排水法沉井施工领域。
Underwater bottom sealing construction method for ultra-large and ultra-deep sinking well
一种超大超深沉井水下封底施工方法
LI QI (Autor:in) / MAO YU (Autor:in) / LI XIAOMING (Autor:in) / WANG WEI (Autor:in) / CHEN PENGJU (Autor:in) / DAI LIANG (Autor:in) / BAN PENG (Autor:in) / SHU ZONGZHU (Autor:in) / LI ZHENG (Autor:in) / HU XIANGYANG (Autor:in)
16.12.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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