Prefabricated structure of comprehensive pipe gallery based on shield construction and its construction method

Abstract

The present invention relates to an assembled structure of an integrated pipe gallery based on shield construction and a construction method thereof, wherein the assembled structure of the integrated pipe gallery comprises a pipe gallery body, which is assembled from a plurality of pipe segments; the pipe segments are arc-shaped plates, and the front and rear side edges thereof are respectively provided with a first step surface and a second step surface overlapped with each other, and the left and right side edges are respectively provided with a longitudinal boss and a docking slot that are mutually clamped; the front and rear adjacent two pipe segments are overlapped with the first step surface and the second step surface for splicing, and the circumferentially adjacent two pipe segments are overlapped with each other for splicing; the pipe gallery body of the present application adopts a plurality of pipe segments for splicing and combination, and the splicing method comprises the cooperation of three connection methods of overlap, clamping and bolting, which can not only facilitate the installation of the assembled structure during the shield construction process, but also ensure the structural strength of the final formed integrated pipe gallery, thereby greatly increasing the service life of the formed integrated pipe gallery.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering construction, and in particular to an integrated pipe gallery prefabricated structure based on shield construction and a construction method thereof. Background Art

[0002] After a hundred years of exploration, research, improvement and practice, the technical level of comprehensive pipeline corridors has been fully mature and has been greatly developed in many cities abroad. It has become a symbol of modernization of municipal construction management in developed foreign cities and a part of urban public management. The underground comprehensive pipeline corridor system not only solves the problem of urban traffic congestion, but also greatly facilitates the maintenance and inspection of municipal facilities such as electricity, communications, gas, water supply and drainage. The underground comprehensive pipeline corridor plays an important role in meeting the basic needs of the people's livelihood and improving the comprehensive carrying capacity of the city. The shield method is used to construct the comprehensive pipeline corridor, which has the advantages of fast construction speed, little impact on the surrounding environment, and no interference with ground road traffic. Many places in China have successfully applied the shield method to construct comprehensive pipeline corridors.

[0003] The existing shield-constructed integrated pipe gallery prefabricated structure has prefabricated pipe gallery connection nodes mostly set at the corners of the pipe gallery. The number of connection nodes is small and the stress is large, resulting in poor stability and short service life. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide an integrated pipe gallery prefabricated structure based on shield construction and a construction method thereof, and solve the problems of poor stability and short service life of the integrated pipe gallery prefabricated structure in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides a prefabricated structure of an integrated pipe gallery constructed based on a shield method, wherein the prefabricated structure of the integrated pipe gallery comprises a pipe gallery body, and the pipe gallery body is assembled from a plurality of pipe segments;

[0006] The pipe segment is an arc-shaped plate, and its front and rear side edges are respectively provided with a first step surface and a second step surface overlapping each other, and the left and right side edges are respectively provided with a longitudinal boss and a docking slot that are clamped together.

[0007] Two adjacent segments in the front and rear directions are spliced ​​by overlapping the first step surface and the second step surface, and two adjacent segments in the circumferential direction are spliced ​​by clamping the longitudinal boss and the docking groove;

[0008] The front and rear inner arc walls of the tube segment are each provided with a first arc-shaped connecting hole penetrating from the edge, and the left and right inner arc walls are each provided with a second arc-shaped connecting hole penetrating from the edge;

[0009] After the two adjacent pipe segments are spliced ​​together, they are connected by a connected first arc-shaped connecting hole and an arc-shaped bolt. After the two adjacent pipe segments are spliced ​​together, they are connected by a connected second arc-shaped connecting hole and an arc-shaped bolt.

[0010] By adopting this technical solution, the pipeline gallery body is formed by a number of pipe segments overlapped in the front-to-back direction and spliced ​​in the circumferential direction. The pipe segments adjacent in the front-to-back direction have a limiting effect along the axial direction of the pipeline gallery body and in the inward and outward directions, and the pipe segments adjacent in the circumferential direction have a limiting effect along the circumferential direction of the pipeline gallery body, so as to increase the stability between the pipe segments after the pipeline gallery body is formed, thereby increasing the stability of the integrated pipeline gallery formed by the pipeline gallery body and increasing its service life; in addition, arc-shaped connecting holes are provided between adjacent pipe segments to provide installation positions for arc-shaped bolts, and arc-shaped bolts can be used to fix adjacent pipe segments, which is not only convenient to install, but also greatly increases the structural strength of the finally formed integrated pipeline gallery, greatly increasing the service life of the integrated pipeline gallery.

[0011] Furthermore, the first step surface and the second step surface are respectively provided with mutually matching positioning protrusions and docking grooves;

[0012] The longitudinal boss is a special-shaped boss, and the docking slot is a special-shaped slot that matches the shape of the longitudinal boss.

[0013] By adopting this technical solution, the positioning protrusion and the docking groove form mutual limitation, which can prevent the front and rear adjacent pipe segments from sliding circumferentially after overlapping, thereby increasing the stability of mutual cooperation; after the longitudinal boss and the docking groove are set to corresponding special shapes, the connection between the circumferentially adjacent pipe segments has a circumferential limiting effect, and increases the clamping stability between adjacent pipe segments.

[0014] Furthermore, an inner rib plate is connected to the middle of the inner arc wall of the tube segment;

[0015] The inner rib plate is spliced ​​with the pipe segments spliced ​​along the circumferential direction to form an inner ring plate, and beam supports are symmetrically and horizontally welded on the inner side of the inner ring plate.

[0016] By adopting this technical solution, an internal rib plate is arranged to provide internal support and connection, and to provide an installation position for the beam support. After the beam support is installed, the prerequisite is provided for the installation and support of the partition plate.

[0017] Furthermore, the integrated pipe gallery assembly structure further includes partition plates that are spliced ​​and arranged along the axial direction of the pipe gallery body;

[0018] The partition plates which are spliced ​​with each other along the axial direction of the pipe gallery body are mounted on beam supports which are symmetrically welded horizontally, and a post-cast strip is arranged in the space formed among the pipe gallery body, the beam supports and the partition plates.

[0019] By adopting this technical solution, a partition plate is set to separate the upper and lower internal spaces of the tunnel body; the post-cast strip is set to eliminate installation errors and increase the stability of the partition plate after installation.

[0020] Furthermore, the front and rear side edges of the partition plate are respectively provided with mutually overlapping butt joint convex edges and butt joint grooves;

[0021] The front and rear adjacent partition plates are spliced ​​by overlapping the butt joint convex edges and butt joint grooves;

[0022] A reinforcing rib is horizontally arranged in the partition plate, and two ends of the reinforcing rib are respectively passed through the left and right sides of the partition plate.

[0023] By adopting this technical solution, the difficulty of matching between adjacent partition plates is reduced and the matching accuracy between adjacent partition plates is increased through the cooperation of the docking protrusions and the docking grooves; reinforcing ribs are set to increase the structural strength of the partition plates themselves, and at the same time, the stability of the partition plate connection is increased after the post-casting strips are set.

[0024] Furthermore, the integrated pipe gallery assembly structure also includes a support frame installed between the top of the partition plate and the inner ring plate;

[0025] The support frame comprises a support body and a docking plate, wherein the docking plate is fixed to the bottom end of the support body;

[0026] The partition plate is provided with a mounting hole, and the docking plate is fixed to the partition plate by bolts in cooperation with the mounting hole.

[0027] By adopting this technical solution, the support frame can be directly fixed to the partition plate through the docking plate at the bottom of the support body through bolts and the mounting holes on the partition plate, achieving rapid assembly, and then the support frame provides a supporting position to facilitate the subsequent layout of pipelines.

[0028] Furthermore, the support frame also includes a support arm;

[0029] The support arms are connected to a plurality of support arms at irregular lengths on both sides of the support body.

[0030] By adopting this technical solution: supporting arms are set to provide a lifting position for subsequent pipeline installation, and are set to different lengths to save the internal space of the corridor body and accommodate the installation of pipelines of different sizes.

[0031] The present invention also provides a construction method of an integrated pipe gallery prefabricated structure based on shield construction, comprising the following steps:

[0032] S1. Use shield method to construct the tunnel and transport the pipe segments into the tunnel, and then splice the pipe segments to form the tunnel body;

[0033] S2. The beam supports are welded symmetrically and horizontally on the inner side of the pipe gallery body;

[0034] S3, transporting the partition plates to the interior of the pipe gallery body, and splicing the partition plates together along the axial direction of the pipe gallery body on the beam supports;

[0035] S4. A post-cast strip is arranged in the space formed between the pipe gallery body, the beam support and the partition plate;

[0036] S5. Install the support frame on the partition plate to complete the assembly of the integrated pipeline corridor.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The main body of the pipe gallery is spliced ​​and assembled with multiple pipe segments. The splicing methods include overlap, clamp and bolt. It is convenient for the installation of the prefabricated structure during the shield construction process, and can ensure the structural strength of the final integrated pipe gallery, greatly increasing the service life of the formed integrated pipe gallery.

[0039] 2. The integrated pipe corridor also includes two parts: a partition plate and a support frame. After the integrated pipe corridor is formed, it has its own internal partition and pipeline support functions. There is no need to drill holes on the inner wall of the pipe corridor to install the mounting frame, thereby ensuring the strength of the integrated pipe corridor, improving its reliability and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a stereoscopic diagram of the pipe gallery body assembly in the comprehensive pipe gallery assembled structure constructed based on the shield method of the present invention;

[0041] Figure 2 This is a front view of the pipe gallery body assembly in the comprehensive pipe gallery assembled structure based on the shield method of the present invention;

[0042] Figure 3 It is a forward stereoscopic schematic diagram of a pipe segment in an assembled structure of a comprehensive pipe gallery constructed based on the shield method of the present invention;

[0043] Figure 4 It is a rear perspective schematic diagram of a pipe segment in an assembled structure of a comprehensive pipe gallery constructed based on the shield method of the present invention;

[0044] Figure 5 It is a schematic diagram of the segments in the assembled structure of the comprehensive pipe gallery constructed based on the shield method of the present invention;

[0045] Figure 6 It is a three-dimensional schematic diagram of a partition plate in the assembled structure of a comprehensive pipe gallery constructed based on the shield method of the present invention;

[0046] Figure 7 It is a schematic diagram of the partition plates in the assembled structure of the comprehensive pipe gallery constructed based on the shield method of the present invention;

[0047] Figure 8It is a schematic diagram of a three-dimensional view of a support frame in the prefabricated structure of a comprehensive pipe gallery constructed based on the shield method of the present invention.

[0048] Explanation of the reference numerals: 1. Pipe gallery body; 11. Pipe segment; 12. Inner rib plate; 13. First step surface; 14. Positioning protrusion; 15. Second step surface; 16. Docking groove; 17. Longitudinal boss; 18. Docking slot; 19. First arc-shaped connecting hole; 110. Second arc-shaped connecting hole; 2. Beam support; 3. Partition plate; 31. Reinforcing rib; 32. Docking convex edge; 33. Docking groove; 34. Pre-set installation hole; 4. Post-cast strip; 5. Support frame; 51. Support body; 52. Docking plate; 53. Fixing plate; 54. Support arm; 7. Filling material. DETAILED DESCRIPTION

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] Please see attached Figure 1-4 The present invention provides an integrated pipe gallery assembly structure based on shield construction, including a pipe gallery body 1, which is assembled from a plurality of pipe segments 11; the pipe segment 11 is an arc-shaped plate, and its front and rear side edges are respectively provided with a first step surface 13 and a second step surface 15 overlapped with each other, and the left and right side edges are respectively provided with a longitudinal boss 17 and a docking groove 18 that are mutually clamped; the front and rear adjacent two pipe segments 11 are spliced ​​by overlapping the first step surface 13 and the second step surface 15, and the surrounding Two adjacent segments 11 are spliced ​​together by engaging the longitudinal bosses 17 and the docking slots 18; first arc-shaped connecting holes 19 penetrating from the adjacent edges are provided on the inner arc walls on both the front and rear sides of the segments 11, and second arc-shaped connecting holes 110 penetrating from the adjacent edges are provided on the inner arc walls on both the left and right sides; after the two adjacent segments 11 are spliced ​​together, they are connected by the connected first arc-shaped connecting holes 19 in combination with arc-shaped bolts, and after the two adjacent segments 11 are spliced ​​together, they are connected by the connected second arc-shaped connecting holes 110 in combination with arc-shaped bolts;

[0051] The pipeline gallery body 1 is composed of a number of pipe segments 11 overlapped along the front-to-back direction and spliced ​​together along the circumferential direction. The pipe segments 11 adjacent in the front-to-back direction have a limiting effect along the axial direction and the inward and outward directions of the pipeline gallery body 1, and the pipe segments 11 adjacent in the circumferential direction have a limiting effect along the circumferential direction of the pipeline gallery body 1, so as to increase the stability between the pipe segments 11 after the pipeline gallery body 1 is formed, thereby increasing the stability of the integrated pipeline gallery formed by the pipeline gallery body 1 and playing a role in increasing the service life; in addition, arc-shaped connecting holes are provided between adjacent pipe segments 11 to provide installation positions for arc-shaped bolts, and arc-shaped bolts can be used to fix adjacent pipe segments 11, which is not only convenient to install, but also greatly increases the structural strength of the finally formed integrated pipeline gallery, and greatly increases the service life of the integrated pipeline gallery.

[0052] Furthermore, the overlapping surfaces of the first step surface 13 and the second step surface 15 are respectively provided with mutually matching positioning protrusions 14 and docking grooves 16. The positioning protrusions 14 and the docking grooves 16 form mutual limitations, which can prevent the front and rear adjacent pipe segments 11 from sliding in the circumferential direction after overlapping, thereby increasing the stability of mutual cooperation; the longitudinal boss 17 is a special-shaped boss, and the docking groove 18 is a special-shaped groove that is adapted to the shape of the longitudinal boss 17. After the longitudinal boss 17 and the docking groove 18 are set to corresponding special shapes, the connection between the circumferentially adjacent pipe segments 11 has a circumferential limiting effect, and increases the clamping stability between the adjacent pipe segments 11.

[0053] Furthermore, an inner rib plate 12 is connected to the middle position of the inner arc wall of the pipe segment 11 in the front and rear direction; the inner rib plate 12 is spliced ​​into an inner ring plate along the pipe segment 11 spliced ​​along the circumferential direction, and the inner side of the inner ring plate is symmetrically horizontally welded with a beam support 2; the inner rib plate 12 is provided to provide internal support and connection, and provide an installation position for the beam support 2. After the beam support 2 is installed, it provides the prerequisite for the installation and support of the partition plate 3.

[0054] Furthermore, the prefabricated structure of the integrated pipe gallery also includes partition plates 3 which are spliced ​​together along the axial direction of the pipe gallery body 1, and the partition plates 3 are provided to separate the internal space of the pipe gallery body 1 into upper and lower parts; the partition plates 3 which are spliced ​​together along the axial direction of the pipe gallery body 1 are mounted on beam supports 2 which are symmetrically horizontally welded, and the space formed between the pipe gallery body 1, the beam supports 2 and the partition plates 3 is provided with post-cast strips 4, and the provision of the post-cast strips 4 can eliminate installation errors and increase the stability of the partition plates 3 after installation.

[0055] Further, please refer to Attachments 1 and 6, the front and rear side edges of the partition plate 3 are respectively provided with overlapping docking protrusions 32 and docking grooves 33; the front and rear adjacent partition plates 3 are spliced ​​by overlapping the docking protrusions 32 and the docking grooves 33, and the matching difficulty between the adjacent partition plates 3 is reduced and the matching accuracy between the adjacent partition plates 3 is increased through the cooperation of the docking protrusions 32 and the docking grooves 33; reinforcing ribs 31 are horizontally arranged in the partition plate 3, and the two ends of the reinforcing ribs 31 are respectively passed through the left and right side edges of the partition plate 3, and the reinforcement ribs 31 are provided to increase the structural strength of the partition plate 3 itself, and at the same time, the stability of the connection of the partition plate 3 is increased after the post-casting strip 4 is provided.

[0056] For further information, please see the attached Figure 1 , 2, 6 and 8, the prefabricated structure of the integrated pipe gallery also includes a support frame 5 installed between the top of the partition plate 3 and the inner ring plate; the support frame 5 includes a support body 51 and a docking plate 52, wherein the docking plate 52 is fixed to the bottom end of the support body 51; a mounting hole 34 is opened on the partition plate 3, and the docking plate 52 is fixed to the partition plate 3 by bolts and the mounting holes 34; the support frame 5 can be directly fixed to the partition plate 3 through the docking plate 52 at the bottom of the support body 1 through bolts and the mounting holes 34 on the partition plate 3, so as to realize rapid assembly, and then provide a supporting position through the support frame 5, which is convenient for the subsequent layout of pipelines.

[0057] Furthermore, the support frame 5 also includes a support arm 54; the support arm 54 is connected to a plurality of irregular lengths on both sides of the support body 51; the support arm 54 is provided to provide a supporting position for subsequent pipeline installation, and is set to different lengths to save the internal space of the pipeline corridor body 1, and to adapt to the installation of pipelines of different sizes.

[0058] Furthermore, in order to increase the installation stability of the support arm 54 on the support body 51, one end of the support arm 54 connected to the support body 51 is also connected to a fixing plate 53, and the fixing plate 53 increases the connection area to increase the connection stability.

[0059] For further information, please see the attached Figure 5 and 7 In order to increase the connection sealing between adjacent tube segments 11 and adjacent partition plates 3 , filling materials 7 are also filled in the gaps between adjacent tube segments 11 and the gaps between adjacent partition plates 3 .

[0060] The present invention also provides a construction method of an integrated pipe gallery prefabricated structure based on shield construction, comprising the following steps:

[0061] S1, using the shield method to construct the tunnel and transport the pipe segments 11 into the tunnel, and forming the tunnel body 1 by splicing the pipe segments 11 together;

[0062] S2, symmetrically and horizontally welding beam supports 2 on the inner side of the pipe gallery body 1;

[0063] S3, transporting the partition plates 3 to the interior of the pipe gallery body 1, and splicing the partition plates 3 together along the axial direction of the pipe gallery body 1 on the beam support 2;

[0064] S4, a post-cast strip 4 is arranged in the space formed between the pipe gallery body 1, the beam support 2 and the partition plate 3;

[0065] S5. Install the support frame 5 on the partition plate 3 to complete the assembly of the integrated pipe gallery.

[0066] Specifically, in step S1, the mutual splicing of the segments 11 includes splicing along the axial direction and circumferential direction of the tunnel, wherein the adjacent segments 11 along the axial direction of the tunnel are overlapped by the first step surface 13 and the second step surface 15, and are fixed by the first arc-shaped connecting hole 19 in cooperation with the arc-shaped bolts, and the adjacent segments 11 along the circumferential direction of the tunnel are clamped by the longitudinal Otai 17 and the docking groove 18, and are fixed by the second arc-shaped connecting hole 110 in cooperation with the arc-shaped bolts; the gaps formed between adjacent segments 11 are filled with filling material 7.

[0067] In step S3 , the partition plates 3 are spliced ​​with each other by overlapping the butt protrusions 32 and butt grooves 33 respectively provided at the front and rear ends thereof; the gaps formed between adjacent partition plates 3 are filled with filling materials 7 .

[0068] The installation of the support frame 5 in step S5 includes installing the support body 51 on the partition plate 3 and installing the support arms 54 on both sides of the support body 51 .

[0069] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A prefabricated structure of a comprehensive pipe gallery constructed based on the shield method, characterized in that: The integrated pipe gallery assembly structure comprises a pipe gallery body, which is assembled from a number of pipe segments; The pipe segment is an arc-shaped plate, and its front and rear side edges are respectively provided with a first step surface and a second step surface overlapping each other, and the left and right side edges are respectively provided with a longitudinal boss and a docking slot that are clamped together. Two adjacent segments in the front and rear directions are spliced ​​by overlapping the first step surface and the second step surface, and two adjacent segments in the circumferential direction are spliced ​​by clamping the longitudinal boss and the docking groove; The front and rear inner arc walls of the tube segment are each provided with a first arc-shaped connecting hole penetrating from the edge, and the left and right inner arc walls are each provided with a second arc-shaped connecting hole penetrating from the edge; After the two adjacent pipe segments are spliced ​​together, they are connected by a connected first arc-shaped connecting hole and an arc-shaped bolt. After the two adjacent pipe segments are spliced ​​together, they are connected by a connected second arc-shaped connecting hole and an arc-shaped bolt.

2. The prefabricated structure of the comprehensive pipe gallery based on shield construction according to claim 1 is characterized in that: The mating surfaces of the first step surface and the second step surface are respectively provided with positioning protrusions and docking grooves adapted to each other; The longitudinal boss is a special-shaped boss, and the docking slot is a special-shaped slot that matches the shape of the longitudinal boss.

3. The prefabricated structure of the comprehensive pipe gallery based on shield construction method according to claim 1 is characterized in that: An inner rib plate is connected to the middle of the inner arc wall of the tube segment; The inner rib plate is spliced ​​with the pipe segments spliced ​​along the circumferential direction to form an inner ring plate, and beam supports are symmetrically and horizontally welded on the inner side of the inner ring plate.

4. The prefabricated structure of the comprehensive pipe gallery based on shield construction method according to claim 3 is characterized in that: The integrated pipe gallery assembly structure also includes partition plates that are spliced ​​together along the axial direction of the pipe gallery body; The partition plates which are spliced ​​with each other along the axial direction of the pipe gallery body are mounted on beam supports which are symmetrically welded horizontally, and a post-cast strip is arranged in the space formed among the pipe gallery body, the beam supports and the partition plates.

5. The prefabricated structure of the comprehensive pipe gallery based on shield construction according to claim 4 is characterized in that: The front and rear sides of the partition plate are respectively provided with mutually overlapping butt joint convex edges and butt joint grooves; The front and rear adjacent partition plates are spliced ​​by overlapping the butt joint convex edges and butt joint grooves; A reinforcing rib is horizontally arranged in the partition plate, and two ends of the reinforcing rib are respectively passed through the left and right sides of the partition plate.

6. The prefabricated structure of the comprehensive pipe gallery based on shield construction according to claim 4 is characterized in that: The integrated pipe gallery assembly structure also includes a support frame installed between the top of the partition plate and the inner ring plate; The support frame comprises a support body and a docking plate, wherein the docking plate is fixed to the bottom end of the support body; The partition plate is provided with a mounting hole, and the docking plate is fixed to the partition plate by bolts in cooperation with the mounting hole.

7. The prefabricated structure of the comprehensive pipe gallery based on shield construction method according to claim 6 is characterized in that: The support frame also includes a bracket arm; The support arms are connected to a plurality of support arms at irregular lengths on both sides of the support body.

8. A construction method for an integrated pipe gallery prefabricated structure based on shield construction as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1. Use shield method to construct the tunnel and transport the pipe segments into the tunnel, and then splice the pipe segments to form the tunnel body; S2. The beam supports are welded symmetrically and horizontally on the inner side of the pipe gallery body; S3, transporting the partition plates to the interior of the pipe gallery body, and splicing the partition plates together along the axial direction of the pipe gallery body on the beam supports; S4. A post-cast strip is arranged in the space formed between the pipe gallery body, the beam support and the partition plate; S5. Install the support frame on the partition plate to complete the assembly of the integrated pipeline corridor.

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