Accurate positioning device suitable for permanent and temporary combined steel pipe column and construction method
It is a technology of precise positioning and permanent integration. It is used in infrastructure engineering, artificial islands, water conservancy projects, etc., to achieve the effect of simple structure, guaranteed construction quality and convenient installation.
Pending Publication Date: 2022-05-27
CCTEB INFRASTRUCTURE CONSTR CO LTD +1
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Problems solved by technology
[0004] In order to overcome the above-mentioned technical problems in the prior art, the present invention provides an accurate positioning device and construction method suitable for permanent bonding steel pipe columns, which can effectively perform permanent bonding in the construction of the cover-excavation method in the foundation pit excavation construction. Precise positioning of the steel pipe column ensures the integrity and construction quality of Yonglin joint steel pipe column, and solves the above technical problems
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[0027] as Figure 1 As shown, a schematic structural diagram of the present invention suitable for a precise positioning device suitable for Yonglin combining steel pipe columns, comprising a jack working platform 3, a laser emitter 4, a rib plate 5 and a laser receiving plate 6, a jack working platform 3 comprises two groups of working jacks 31, an air compressor 32, a hydraulic tubing 33, a hydraulic control system 34 and a hollow circular steel working platform 35.
[0028] In the present embodiment, the rib plate 5 is 30mm long, the rib plate 5 is welded inside the steel pipe column 1 when prefabricated, the laser emitter 4 size is 30mm × 13mm, fixed is set above the rib plate 5, the base spacing between the rib plate 5 and the bottom of the steel pipe column 1 is 4m, the laser receiving plate 6 size is 10cm×10cm, the thickness is 2cm, set at the top of the steel pipe column 1 0.3m, for receiving the signal of the bottom laser emitter 4, judging the verticality of the steel pip...
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The invention discloses an accurate positioning device suitable for a permanent and temporary combined steel pipe column, the accurate positioning device comprises a jack working platform, the steel pipe column, a laser emitter, a laser receiving plate and a rib plate, and a steel pipe column positioning use method comprises the following steps: carrying out hole detection on a construction part of the steel pipe column, excavating by using a rotary excavating drill after hole detection, putting the steel pipe column into a steel reinforcement cage, and carrying out hole detection on the steel pipe column; the top of the steel pipe column is adjusted and fixed through an upper jack, a lower jack is connected with a cushion block structure preset on a protection wall in advance in a mortise and tenon mode, then the hydraulic system and the control system adjust the jacks to adjust the lower position of the steel pipe column, and finally the perpendicularity of the steel pipe column is confirmed through a laser emitter. And then the steel reinforcement cage is poured through the guide pipe, concrete is poured to the position about 3 m above the bottom of the steel pipe column, and the lower jack is hoisted for the next steel pipe column to continue to use. According to the method, the permanent and temporary combined steel pipe column can be effectively and accurately positioned in cover-excavation method construction, and the construction quality of the steel pipe column is guaranteed.
Description
Technical field [0001] The present invention belongs to the field of subway station construction technology, specifically relates to a precise positioning device and construction method suitable for Yonglin combining steel pipe columns. Background [0002] In the construction of traditional subway stations, often because the subway is in the city center area, the construction needs to consider the impact on the surrounding environment, especially the impact of traffic road relief, so often because the surrounding environment is not enough and the cover excavation method or half cover excavation method is used for construction, and the bottom of the cover plate needs temporary steel pipe columns to support, to ensure the construction quality and safety control, in order to effectively reduce the construction process and reduce construction costs, you can consider the implementation of Yonglin combined steel pipe columns, the early stage as a cover temporary support, the later as t...
Claims
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IPC IPC(8): E04G21/18E02D29/045E02D29/00
CPCE04G21/18E04G21/1841E02D29/045E02D29/04
Inventor 王旭孙厚强吴俊杜禹滕立荣王元灵谢明利
Owner CCTEB INFRASTRUCTURE CONSTR CO LTD