Recycling external immersed tube tunnel vertical supporting device and supporting method thereof

Abstract

The invention discloses a recycling external immersed tube tunnel vertical supporting device and a supporting method thereof. The recycling external immersed tube tunnel vertical supporting device comprises temporary cushion blocks, jacks and jack support bases, wherein the jack support bases are vertically arranged on the temporary cushion blocks, the jacks are vertical and are inserted onto the jack support bases in embedding modes, and the tops of the jacks extend out from the interiors of the jack support bases. The immersed tube section in an immersed tube tunnel is subjected to sinking butt joint through the jacks, the jacks are externally arranged in the immersed tube section in the construction process and are used for pushing the immersed tube section to the appropriate construction position in a vertical supporting mode, and further and the jacks and the jack support bases can be removed and recovered after construction to be reused in vertical supporting and sinking butt joint of the next immersed tube section to be sunk. The recycling external immersed tube tunnel vertical supporting device can reuse the jacks and the jack support bases, does not damage the immersed tube section structure, and is simple in structure and low in manufacturing cost. The invention further discloses the supporting method of the recycling external immersed tube tunnel vertical supporting device.

Description

technical field [0001] The invention relates to a support structure and a support method for an immersed tube tunnel, in particular to a reusable external vertical support device for an immersed tube tunnel and a support method thereof. Background technique [0002] The supporting structure of the immersed tunnel is the necessary equipment in the construction of the immersed tunnel. At present, the supporting structure of the existing immersed tunnel is usually a built-in vertical supporting structure of the immersed tunnel. The structure is as follows: figure 1 , figure 2 As shown, the support structure includes a temporary pad 1, a push rod 4 and a jack 3. When vertically supporting and sinking the immersed tube section 2, the vertical support structure needs to be pre-embedded on the bottom plate 22 or side wall of the immersed tube section 2. 21, when using the vertical support structure for support, the vertical support structure is pre-embedded in the bottom plate 22...

AI Technical Summary

Problems solved by technology

[0004] (1) The existing vertical support structure is pre-buried inside the immersed tube section, and cannot be reused for the next immersed tube section after being used for one immersed tube section;

[0005] (2) The pre-embedded part of the existing vertical support structure must penetrate the bottom plate of the entire immersed tube section when pre-embedded, which will have adverse effects on the force, waterproof and durability of the immersed tube section;

[0006] (3) The existing vertical support structure consumes a large amount of steel and requires strict watertightness, resulting in high project cost

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