Immersed tube bottom capsule water filling fine adjusting system and adjusting technology
A technology of immersed tube and bottom end, which is applied in the field of immersed tube correction bottom end adjustment system and its adjustment technology, which can solve the problems of large thrust, time-consuming and laborious, difficult control, etc., and achieve the effect of uniform pressure, low cost and accurate installation accuracy
Active Publication Date: 2015-04-15
NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG +1
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Problems solved by technology
[0004] The invention aims at the above-mentioned problems such as large thrust, difficult control, time-consuming and labor-intensive when the immersed tube is installed under the influence of waves, water flow, wind and other natural conditions in the construction process of the existing immersed tube tunnel, and provides a water-filled capsule at the bottom end of the immersed tube. The system is located at the bottom of the tail of the immersed tube to be installed when it is in use, and has the function of self-lifting and correcting the deflection, which is suitable for correcting the deflection of the immersed tube during the construction of the immersed tube tunnel
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[0024] The present invention will be further described below in conjunction with accompanying drawing.
[0025] A capsule water-filled fine adjustment system at the bottom of the immersed tube, the system includes a control system and a mechanical system, the mechanical system includes a hydraulic pump station, a counterweight box 1, and a track 2 installed on one side of the counterweight box 1, and the track 2 is provided with A horizontal positioning mechanism that can run along the track 2. The horizontal positioning mechanism includes a bottom plate 3 installed on the track 2 and a horizontal positioning jack 4 installed on the bottom plate 3. One end of the horizontal positioning jack 4 is connected to the counterweight box 1; the bottom plate 3 Both sides of both sides are all equipped with buoyancy tank 11, are used for reducing the underwater weight of system, be convenient to put in place. A chute and a horizontal traverse jack 5 are installed on the bottom plate 3, ...
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The invention relates to an immersed tube bottom capsule water filling fine adjusting system and an adjusting technology. The system comprises a control system and a mechanical system, wherein the mechanical system comprises a hydraulic pump station, weight boxes and tracks; a horizontal positioning mechanism is arranged on each track, each horizontal positioning mechanism comprises a bottom plate and a horizontal positioning jack, and one end of each horizontal positioning jack is connected with a weight box; a chute and a horizontal transverse moving jack are arranged on each bottom plate, a jacking deviation correcting box is placed in each chute, a vertical jacking mechanism is arranged in each jacking deviation correcting box, and one end of each horizontal transverse moving jack is connected with the jacking deviation correcting box; and each vertical jacking mechanism comprises a water filling capsule and a jacking cover plate placed on the upper part of the water filling capsule, wherein each water filling capsule is placed in a jacking deviation correcting box. By using the water filling capsules as jacking elements, the fine adjusting system is light in weight and uniform in stress, has an automatic jacking deviation correcting function, is low in manufacturing cost, convenient to place in position, time-saving, labor-saving and accurate in installation precision, is affected little by natural conditions such as wave, water flow and wind, and is high in stability.
Description
technical field [0001] The invention relates to the construction technology of immersed tube tunnels, in particular to a bottom-end adjustment system for rectifying the deviation of immersed tubes during the construction process of immersed tube tunnels and an adjustment process thereof. Background technique [0002] The immersed tube method is a construction method for building tunnels under water. Immersed tube tunnel is an underwater tunnel constructed by floating several prefabricated sections to the sea surface (river surface) site, and sinking and installing them one by one in the dredged foundation trench. At present, in the construction process of immersed tube tunnels, in order to improve the smoothness of the bottom surface of the trench, most of the built underwater tunnels adopt the method of leveling. Among them, the padding method mostly used in the early stage is a first-laying method in which sand and gravel are laid as a cushion before the pipe section is l...
Claims
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IPC IPC(8): E02D29/073
Inventor 曲俐俐林鸣冯海暴李增军付大伟
Owner NO 2 ENG CO LTD OF CCCC FIRST HARBOR ENG