Cushion block assembly structure for jacking up structures and its jacking implementation method

Abstract

The invention discloses a cushion block assembly structure for jacking a structure and a jacking implementation method of the cushion block assembly structure. The assembly structure comprises cushion block layers formed by assembling a plurality of special-shaped cushion blocks, and a plurality of the cushion block layers are longitudinally superimposed to form the cushion block assembly structure for jacking the structure. The special-shaped cushion blocks comprise enclosing plates used for enclosing to form the shape of the special-shaped cushion blocks, concrete is filled in the enclosing plates, rabbets are arranged on assembly surfaces of the enclosing plates, a rabbet type connection is arranged between adjacent special-shaped cushion blocks positioned on the same cushion block layer. When the cushion block assembly structure is implemented, the plurality of special-shaped cushion blocks are assembled to form the cushion block layers matched with sections of installation pier columns, and then the cushion block layers are superimposed to jacking installation surfaces of the installation pier columns to complete jacking to the installation pier columns. The cushion block assembly structure has high manufacture precision and high cushion block assembly structure and is convenient to transport and install. By utilizing the cushion block assembly structure, the use safety and the late durability can be ensured.

Description

technical field [0001] The invention relates to the technical field of modular auxiliary devices for construction engineering, in particular to a pad assembly structure for jacking up a structure and a jacking implementation method thereof. Background technique [0002] Present bridge jacking pads can be roughly divided into several types such as wooden wedge pads, finishing steel pipe pads and prefabricated reinforced concrete pads. Although the wooden wedge block is easy to make and light in weight, it has low strength and large deformation, so it is not suitable for heavy load jacking environment; the machining accuracy of the finished steel pipe block is easy to control, but the bearing capacity is relatively low and the plane close-packed arrangement is harmful to the environment. The construction space requirements are relatively high; the integral prefabricated reinforced concrete block has high strength, but the disadvantage is that the manufacturing accuracy is not ...

AI Technical Summary

Problems solved by technology

Although there are blocks that are divided into four sides as prototypes, they are still bulky and easy to deform due to their large size and weight, and it is difficult to control the processing quality. The pads may be deformed under pressure, resulting in an increase in the gap between the joints; for the permanent pads that will be part of the pier in the future, the gaps will have an adverse effect on the durability of the structure; or because there is no implicated effect between the pads, it may cause Uneven force on the jack, uneven force or sliding of some pads

[0003] At present, for the jacking of large bridges, due to the self-heavy structure, more jacks are needed to provide jacking force. It is very difficult to install pads, especially the large overall pads may be deformed in any link during the production, transportation, and hoisting process, resulting in unusable construction safety or quality

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