Deviation correction construction method after displacement of comprehensive pipe gallery
By using a combination method of back wall and jack foundation in the integrated pipeline corridor, the deviation correction problem after floating displacement on the pipeline corridor is solved, and rapid and accurate reset and stable recovery are achieved to ensure construction quality and use functions.
Patent Information
- Application Number
- CN202411385569.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-01-10
AI Technical Summary
The lack of effective corrective measures after floating displacement of the integrated pipeline corridor in the prior art, which makes it difficult to correct and restore the upward displacement caused by water level difference in the pipeline corridor in special weather.
A method of correcting deviation after displacement of the integrated pipe corridor is adopted, including excavating a work pit at the bottom of the pipe corridor, applying a back wall and a horizontal jack to correct the horizontal position, and then installing a vertical lifting jack foundation on both sides, passing the top The lift and lower operation resets the pipe gallery to the design elevation and fills the low-grade concrete to complete deviation correction.
It realizes rapid and precise correction of pipe corridors, ensures its structural stability and construction quality, and meets the functional requirements of use.
Smart Images
Figure CN119287997A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of municipal integrated pipe gallery construction, and in particular relates to a deviation correction construction method after the integrated pipe gallery is displaced. Background Art
[0002] The integrated pipe gallery is a comprehensive space set up in the underground pipeline in the city. It is also a tunnel space set up underground. Gas, heating, communication, electricity, etc. can be concentrated in this building. It is also equipped with special inspection ports, lifting ports and monitoring systems, realizing the unified design and maintenance in the city. When designing an integrated pipe gallery, the thickness of the covering soil is generally calculated or an anti-floating bottom plate is set to ensure that the anti-floating property of the structure is met during use. However, during the construction process, because the pipe gallery is constructed and backfilled in sections, when it encounters special weather such as heavy rainstorms, the outside of the pipe gallery is prone to blockage due to the backfilling of the sections, and the water flow is not smooth, resulting in inconsistent water level rise speeds inside and outside the pipe gallery, forming an excessively large water level difference inside and outside the pipe gallery, and causing the nearly 1,000-ton pipe gallery segment to float and shift. At present, there is no mature correction measure for the floating and shifting of the pipe gallery in the existing technology. Therefore, it is necessary to design a correction construction method for the displacement of the integrated pipe gallery to solve the above problems. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a method for correcting the displacement of an integrated pipe corridor. The method solves the problem that the integrated pipe corridor in the prior art is displaced during use and is difficult to correct and restore. The method has the characteristics of simple structure, convenient construction, and can quickly and accurately complete the displacement correction of the integrated pipe corridor.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A deviation correction construction method after the displacement of a comprehensive pipe gallery comprises the following steps: S1, widen the bottom of the slope on one side of the corridor, dig out a working pit, dig the slope at the corresponding elevation of the corridor floor into a vertical surface, and construct the back wall; S2, after the strength of the back wall reaches the requirement, fix the horizontal jack on the surface of one side of the back wall, with the top of the horizontal jack in the middle of the corridor floor; place the first steel plate between the horizontal jack and the concrete of the corridor floor, operate multiple horizontal jacks synchronously according to the horizontal displacement, reset the corridor horizontally, and then remove the horizontal jack and the first steel plate; S3, excavate pits for vertical jack foundations on both sides of the tunnel, and construct a reinforced concrete vertical jack foundation on each side of the tunnel, for a total of four; S4. After the foundation strength of the vertical lifting jack meets the requirement, place the vertical jack on the foundation of the vertical lifting jack. Adjust the position of the other end of the vertical jack according to the predetermined lifting point to cooperate with the lower surface of the corridor. Place a second steel plate between the vertical jack and the concrete of the corridor bottom slab. Operate the four vertical jacks synchronously to make the lifting process of the four lifting points consistent, and lift the corridor to at least 20cm above the cushion layer. S5: Use a high-pressure water gun or manual digging to clean the bottom of the pipe gallery to provide space for the pipe gallery to be placed. S6: Synchronously operate the four vertical jacks at the bottom of the pipe gallery to slowly lower the pipe gallery to the designed elevation to complete the reset; S7, withdraw the vertical jack and the second steel plate of the corridor, fill the working pit at the bottom of the corridor with low-grade concrete, and the corridor correction work is completed.
[0005] Preferably, in step S1, when constructing the back wall, the slope is first trimmed into a vertical surface to ensure that the horizontal jack is installed and the force direction is correct.
[0006] The beneficial effects of the deviation correction construction method after the displacement of the integrated pipe gallery provided by the present invention are as follows: This method divides the pipeline corridor correction construction into several processes, including horizontal jacking correction, pipeline corridor bottom cleaning, vertical jacking correction, and working pit filling. It provides a feasible construction process for the correction construction after the pipeline corridor is floated and shifted, and can quickly and accurately complete the correction of the pipeline corridor after the floating and shifting, ensuring that the pipeline corridor meets the use function and construction quality acceptance requirements after correction and resetting. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 A cross-sectional view of the arrangement of the deviation correction measures of the present invention; Figure 2 A longitudinal section diagram of the arrangement of the deviation correction measures of the present invention; In the figure: back wall 1, working pit 11, cushion layer 12, horizontal jack 2, first steel plate 3, vertical lifting jack foundation 4, vertical jack 5, second steel plate 6, pipe gallery 7. DETAILED DESCRIPTION
[0008] Embodiment 1: like Figure 1~Figure 2 As shown, a deviation correction construction method after the displacement of a comprehensive pipe gallery comprises the following steps: S1, widen the pipe gallery 7 to one side of the bottom of the slope, dig out a working pit 11, dig the slope at the corresponding elevation of the bottom plate of the pipe gallery 7 into a vertical surface, and construct the back wall 1; S2, after the strength of the back wall 1 reaches the requirement, fix the horizontal jack 2 on the surface of one side of the back wall 1, with the vertex of the horizontal jack 2 at the middle part of the bottom plate of the pipe gallery 7; place the first steel plate 3 between the horizontal jack 2 and the concrete of the bottom plate of the pipe gallery 7, and synchronously operate multiple horizontal jacks 2 according to the horizontal displacement to correct and reset the horizontal position of the pipe gallery 7, and then remove the horizontal jack 2 and the first steel plate 3; S3, excavating pits for vertical jack foundations 4 on both sides of the pipe gallery 7, and constructing a reinforced concrete vertical jack foundation 4 on both sides of the pipe gallery 7, for a total of four; S4, after the strength of the vertical lifting jack foundation 4 reaches the requirement, the vertical jack 5 is placed on the vertical lifting jack foundation 4, and the other end of the vertical jack 5 is adjusted to a position according to a predetermined lifting point, so as to cooperate with the lower surface of the pipe gallery 7; a second steel plate 6 is laid between the vertical jack 5 and the concrete of the bottom plate of the pipe gallery 7, and the four vertical jacks 5 are operated synchronously to make the lifting process of the four lifting points consistent, and the pipe gallery 7 is lifted to a height of not less than 20 cm above the cushion layer 12. S5, cleaning the bottom of the pipe gallery 7 by using a high-pressure water gun or manually digging to provide space for lowering the pipe gallery 7; S6, synchronously operate the four vertical jacks 5 at the bottom of the pipe gallery 7, slowly lower the pipe gallery 7 to the designed elevation, and complete the reset; S7, withdraw the vertical jack 5 and the second steel plate 6 of the pipe gallery 7, fill the working pit 11 at the bottom of the pipe gallery 7 with low-grade concrete, and the deviation correction work of the pipe gallery 7 is completed.
[0009] Preferably, in step S1, when constructing the rear wall 1, the slope is first trimmed into a vertical surface to ensure that the horizontal jack 2 is installed and the force direction is correct.
[0010] Embodiment 2: A device for rectifying the deviation of a comprehensive pipe gallery after displacement comprises a cushion layer 12, a pipe gallery 7 is placed on the upper surface of the cushion layer 12; both sides of the pipe gallery 7 are inclined slope structures; working pits 11 are opened at the bottom of the slopes on both sides, a plurality of vertical lifting jack foundations 4 are cast at the bottom of the working pits 11, a vertical groove is opened on the slope on one side of the working pit 11, and a back wall 1 is cast in the vertical groove.
[0011] A vertical jack 5 is fixed on the upper surface of the vertical jack foundation 4, and a jacking point at the front end of the vertical jack 5 cooperates with the lower surface of the pipe gallery 7.
[0012] A horizontal jack 2 is fixed to the side surface of the back wall 1 , and the jacking point at the front end of the horizontal jack 2 cooperates with the side surface of the bottom plate of the pipe gallery 7 .
[0013] A first steel plate 3 is provided between the horizontal jack 2 and the surface of the pipe gallery 7 ; a second steel plate 6 is provided between the vertical jack 5 and the surface of the pipe gallery 7 .
Claims
1. A deviation correction construction method after the displacement of a comprehensive pipe gallery, characterized in that: The following steps are involved: S1, widening the bottom of the side slope of the pipe gallery (7) to one side, excavating a working pit (11), excavating the side slope at the corresponding elevation of the bottom plate of the pipe gallery (7) into a vertical surface, and constructing a back wall (1); S2, after the strength of the back wall (1) reaches the required level, the horizontal jack (2) is fixed to the surface of one side of the back wall (1), with the top of the horizontal jack (2) at the middle of the bottom plate of the pipe gallery (7); a first steel plate (3) is placed between the horizontal jack (2) and the concrete of the bottom plate of the pipe gallery (7), and multiple horizontal jacks (2) are synchronously operated according to the horizontal displacement to correct and reset the horizontal position of the pipe gallery (7), and then the horizontal jack (2) and the first steel plate (3) are removed; S3, excavating pits for vertical jack foundations (4) on both sides of the pipe gallery (7), and constructing one reinforced concrete vertical jack foundation (4) on both sides of the pipe gallery (7), for a total of four; S4, after the strength of the vertical lifting jack foundation (4) reaches the required level, the vertical jack (5) is placed on the vertical lifting jack foundation (4), and the other end of the vertical jack (5) is adjusted to a position according to a predetermined lifting point so as to be in contact with the lower surface of the pipe gallery (7); a second steel plate (6) is placed between the vertical jack (5) and the concrete floor of the pipe gallery (7), and the four vertical jacks (5) are operated synchronously so that the lifting processes of the four lifting points are consistent, and the pipe gallery (7) is lifted to a height of not less than 20 cm above the cushion layer (12). S5, cleaning the bottom of the pipe gallery (7) by using a high-pressure water gun or manually digging to provide space for lowering the pipe gallery (7); S6, synchronously operate the four vertical jacks (5) at the bottom of the pipe gallery (7) to slowly lower the pipe gallery (7) to the designed elevation, thus completing the reset; S7, withdraw the vertical jack (5) and the second steel plate (6) of the pipe gallery, fill the working pit (11) at the bottom of the pipe gallery (7) with low-grade concrete, and complete the correction work of the pipe gallery.
2. According to claim 1, a deviation correction construction method after the displacement of a comprehensive pipe gallery is characterized in that: In step S1, when constructing the back wall (1), the side slope is first trimmed into a vertical surface to ensure that the horizontal jack (2) is installed and the force direction is correct.