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Deep water bare rock foundation construction device and method

A technology for foundation construction and deep-water bare rock, which is applied in infrastructure engineering, protection devices, water conservancy projects, etc. It can solve problems such as hidden safety hazards and high construction costs, simplify the structure, reduce total weight and strength requirements, and improve accuracy. Effect

Active Publication Date: 2021-10-15
SHIJIAZHUANG TIEDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a deep-water bare-rock foundation construction device and method to solve the problems in the prior art that there are certain safety hazards and construction costs when using the existing steel casing cofferdam construction technology for deep-water bare-rock construction. big technical problem

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  • Deep water bare rock foundation construction device and method
  • Deep water bare rock foundation construction device and method
  • Deep water bare rock foundation construction device and method

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specific Embodiment approach

[0058] As a kind of embodiment of the deep water bare rock foundation construction method provided by the present invention, specifically comprise the following steps:

[0059] Build a trestle bridge as a temporary construction work platform;

[0060] Assemble the first section of steel casing and the second section of steel casing on the trestle bridge, install part of the casing, and install the connection and fixing system on the outer wall of the steel casing. First, two sections of steel casing are used to facilitate the vertical state of the slide bar;

[0061] The crane lifts the assembled steel box of the first section, the steel box of the second section, the casing and the connection and fixing system, and lowers them to a suitable height;

[0062] Use other cranes to hoist the steel pipes, insert 4 steel pipes to the bare rock bottom as sliding rods, insert pins, unhook the crane, and use steel pipes to support the double-section steel casing and casing in the water...

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Abstract

The invention provides a deep-water bare rock foundation construction device and method, belonging to the technical field of bridge construction. The present invention first uses the front N-section steel box to position the slide bar, which facilitates the insertion of the slide bar and improves the accuracy of the slide bar placement, and then in turn forms a support for the steel box through the slide bar to facilitate the installation of other steel boxes. The installation and lowering of the casing is conducive to improving the accuracy and safety of the steel casing. After the steel casing is lowered to the bare rock, the sliding rod can also avoid the instability of the steel casing caused by the unevenness of the bare rock. risk and improve safety. Finally, after the pier body construction is completed, only one or several steel casings filled with concrete at the bottom should be discarded, and all other parts can be reused, and the adjacent steel casings pass through the interior The vertical beams and connecting components are connected together, and the steel box can mainly bear the load and resist bending through the vertical beams, which can greatly save costs.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and more specifically relates to a deep-water bare rock foundation construction device and method. Background technique [0002] With the rapid development of bridge construction, steel box cofferdam construction technology has become a common construction technology in bridge construction. The main method is to lower the steel box to the bottom of the river to play the role of waterproofing and formwork, and it is mostly suitable for river shoals , The parts with low flow rate are used for the construction of concrete for bridge piers and caps. However, in the environment of deep-water bare rock, because there is no covering layer at the bottom of the water, the rocks are uneven, and the water flow is complex, if the traditional steel box cofferdam is used, the design height of the steel box will be high and the stand will be unstable. There are certain potential safety hazards in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D15/08E02D25/00E02D29/16E02D31/02E01D21/00
CPCE01D21/00E02D15/08E02D25/00E02D29/16E02D31/02
Inventor 向敏杨惠杨从娟高明慧孟庆峰王兴珍
Owner SHIJIAZHUANG TIEDAO UNIV
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