Construction Method of W-shape Excavation and Subsidence of Caisson
A construction method and caisson technology, applied in caisson, infrastructure engineering, construction, etc., can solve the problems of structural damage, sudden sinking, stagnation, etc., and achieve the effect of optimized force and simple operation
Active Publication Date: 2021-04-06
CCCC SECOND HARBOR ENG +2
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Problems solved by technology
Although the sinking construction method of the caisson has been developed and improved for many years, there are still problems such as stagnation, sudden sinking, and structural damage during the construction process. risk
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[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0030] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the reagents and materials, if not otherwise specified, can be obtained from commercial sources; in the description of the present invention, The terms "landscape", "portrait", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have Certain orientations, co...
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The invention discloses a W-shaped excavation and sinking construction method for caissons. The construction steps include: S1, setting the caissons above the area to be constructed; S2, dividing multiple compartments of the caissons into: the excavation area , reserved area and auxiliary area; S3, first take soil from the excavation area to make the caisson sink as a whole, and at the same time as the overall sinking of the caisson, take soil from the reserved area and auxiliary area to ensure that the soil in the excavation area and There is a certain height difference between the soil in the other two areas; S4, when the caisson sinks to the design height connection position, the height is raised at the top of the caisson; after the height is connected, the number of compartments in each area is adjusted by calculation; S5, repeat S3 ~ S4 until the caisson sinks to the design elevation position; among them, if the caisson does not sink after soil is taken from the excavation area in S3, the auxiliary area is excavated until the caisson sinks as a whole. The invention has the characteristics of simple construction and high safety, and can be widely used in the technical field of bridge middle and large caisson sinking construction.
Description
technical field [0001] The invention relates to the technical field of sinking construction of large caissons in bridges. More specifically, the present invention relates to a sinking construction method of W-shaped caisson excavation. Background technique [0002] The caisson foundation has a large embedment depth, strong integrity and good stability, and has been widely used in the anchorage of long-span bridges in recent years. Although the sinking construction method of the caisson has been developed and improved for many years, there are still problems such as stagnation, sudden sinking, and structural damage during the construction process. risk. Therefore, it is necessary to design a safe and efficient caisson excavation construction method, so that the caisson can sink smoothly under the condition of structural safety. Contents of the invention [0003] It is an object of the present invention to solve at least the above-mentioned problems and to provide at leas...
Claims
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IPC IPC(8): E02D23/08
CPCE02D23/08
Inventor 张永涛陈培帅贺祖浩李德杰孔茜邱敏罗会武石章入饶为胜姚翔川黄威高如超蒋道东许超冯德定江鸿吴诗琦陈祥龙袁青李雪松杨志勇刘东军杨林唐湘隆贺创波王伟
Owner CCCC SECOND HARBOR ENG