Prefabricated animal channel construction structure

Abstract

The utility model discloses a prefabricated animal channel construction structure which comprises the following steps: step 1, prefabricating arch rib sections; step 2, constructing an arch seat; step 3, constructing an arch rib temporary construction support; step 4, hoisting and positioning the arch rib, step 5, constructing a cast-in-place bridge deck slab, and step 6, constructing a bridge deck. According to the prefabricated animal channel construction structure, the efficiency is improved and the environment is fused through the prefabricated arch rib sections and the prefabricated construction; uHPC material is used to enhance durability and reduce maintenance; an innovative skewback connecting system ensures accurate anchoring, and the safety of a high-performance pier pile and supporting pile lifting structure is ensured; vegetation soil and vegetation promote ecological fusion, and wild animals are protected; the construction process is optimized through the suspension formwork system and the steel pipe pile supporting technology, and structural stability is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated assembled animal passage construction, and is applicable to the technical field of lightweight arched prefabricated assembled animal passage overpass construction. Background Art

[0002] With growing awareness of ecological protection, the construction of animal passageways is gaining increasing attention to ensure the normal migration and movement of animals within human activity areas. Existing animal passageway construction technologies, especially those spanning rivers, valleys, and other terrains, often present complex construction processes, long construction times, and significant disruption to the surrounding ecological environment.

[0003] Traditional channel construction may adopt the on-site casting method, which requires a large construction site for a long time during the construction process and has poor adaptability to complex terrain (such as rock environment in mountainous areas). Moreover, the temporary support structure during the construction process is often difficult to accurately adjust the elevation to adapt to the position of the main structure of the channel, resulting in difficulty in ensuring construction accuracy. In terms of the construction of the channel bridge deck, the construction and fixing methods of the template are not flexible enough. When encountering conflicts in the structural space position, it is more difficult to handle, affecting construction efficiency and quality. In addition, the existing technology may not take into account the ecological friendliness in the overall construction process. For example, there is no effective way to construct a vegetation layer specifically for animal channels. These problems need to be solved urgently to meet the growing needs of ecological protection and animal channel construction.

[0004] Therefore, this utility model introduces the concept of prefabrication and assembly. Through the assembly and rapid construction practice of lightweight UHPC arch bridges, a prefabricated and assembled animal passage and construction method are proposed, aiming to provide convenient and safe "travel" passages for animals in their habitats. Summary of the Invention

[0005] The purpose of the utility model is to provide a prefabricated and assembled animal passage construction structure in order to solve the above-mentioned problems existing in the prior art.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions: a prefabricated assembled animal passage construction structure adopts an arched overpass structure, including an arch bridge, temporary support and a suspension system;

[0007] The arch bridge comprises a plurality of prefabricated transversely spaced arch ribs, cross ties connecting the arch ribs and transversely intersecting the arch ribs, cast-in-situ bridge deck slabs on the arch ribs, vegetation soil filled on the bridge deck slabs, vegetation planted on the vegetation soil, and an abutment; a single prefabricated arch rib is formed by splicing a plurality of segments, and wet joints are constructed between the segments; the abutment is embedded in rock bodies at two ends of the arch rib and used for anchoring the two ends of the arch rib, the abutment is internally provided with an anchoring plate, the lower part of the anchoring plate is connected with uplift resisting piles extending into the rock layer, and the upper part of the anchoring plate is provided with a positioning cylinder having the function of temporarily positioning the anchoring end of the arch rib; wherein the abutment is further connected with a matrix arranged positioning rod, the positioning rod is connected with a ring-shaped positioning ring, and the positioning rod and the positioning ring form a positioning groove matching the shape of the anchoring end of the arch rib;

[0008] The temporary support comprises steel pipe piles and cables, the bottom of the steel pipe pile is positioned and fixed by an enlarged foundation and a column foot embedded part, the steel pipe piles are connected by connecting systems, the top of the steel pipe pile is provided with a sand cylinder for height adjustment and unloading, the upper part of the sand cylinder is provided with a longitudinal beam, the longitudinal beam is provided with a cross beam, the cross beam is provided with a bent frame, the upper part of the bent frame is provided with a square timber and a bamboo plywood, the bent frame, the square timber and the bamboo plywood realize accurate adjustment of the support elevation and match the in-place shape of the arch rib; wherein the cable is used to connect and fix the cross beam and the arch rib after the arch rib is hoisted and positioned on the support platform, the lower end of the cable is connected to the cross beam, and the upper end of the cable is fixed to the top of the arch rib by a section steel anchor.

[0009] The suspension system is fixed to the two ends of the cross tie of the arch bridge and comprises a pre-buried screw rod pre-buried in the cross tie, a connecting head and a connecting block, the connecting head is connected to the pre-buried screw rod, the connecting block is fixed to the connecting head through a connecting ring and a connecting bolt, the upper end of the connecting block is provided with a matrix arranged limiting frame, a plurality of limiting frames form a limiting cavity, a base is installed in the limiting cavity, the base, the connecting block and the limiting frame are all connected by movable screws, a vertical rod is installed on the base, a horizontal rod is connected to the vertical rod, the horizontal rod is connected to a formwork through a suspension rod, and finally a suspension system of the formwork is formed.

[0010] Further, the arch rib and the cross tie are a longitudinal and transverse intersecting bottom frame.

[0011] Further, the abutment is internally provided with installation space of the arch rib and pouring space of the high-performance pier pile.

[0012] Further, the cable adopts a prestressed steel strand, realizes fixed connection of the arch rib and the temporary construction support, and prevents displacement of the arch rib.

[0013] Further, the suspension system further comprises a plurality of unconnected sub-formworks used when the formwork conflicts with the space position of the arch rib and the cross tie structure, and each sub-formwork is fixed by a suspension rod.

[0014] Further, the material of the arch rib is ultra-high performance concrete (UHPC).

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model can significantly reduce on-site construction time and improve construction efficiency by prefabricating arch rib segments and adopting an assembled construction method; the arch bridge-shaped animal passage structure is natural and elegant, blending harmoniously with the surrounding environment, achieving a perfect combination of functionality and aesthetics.

[0017] 2. Using ultra-high performance concrete (UHPC) as the arch rib material, it has the characteristics of high durability, low permeability and maintenance-free, which will extend the service life of the animal passage and reduce future maintenance costs.

[0018] 3. A new type of arch seat and arch rib embedded connection system is adopted, a positioning cylinder is used to temporarily locate the arch rib anchor end, and a positioning rod and a positioning ring are used to form a positioning groove that matches the shape of the arch rib anchor end, so as to achieve accurate and efficient anchoring of the arch rib anchor end.

[0019] 4. High-performance pier piles are used to anchor the arch seat and the arch rib anchorage, enhancing the stability and safety of the structure. In addition, the use of support piles provides additional support for the arch ribs, further enhancing the safety of the structure.

[0020] 5. The vegetation filled on the bridge deck and the planted vegetation help the animal passage to integrate with the surrounding environment, reduce interference with the natural ecology, help protect and attract wild animals, and provide a safe crossing path.

[0021] 6. The introduction of prefabricated assembly concepts and construction methods, and the use of a horizontally installed suspended formwork system, reduced the need for supporting structures. Furthermore, the stable and adjustable suspended formwork system provided favorable conditions for pouring the bridge deck.

[0022] 7. Adopt new steel pipe pile support technology, use racks, square timber, and bamboo plywood to accurately adjust the support elevation, match the positioning of the arch ribs, and use cable connections to prevent the arch ribs from shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the construction support of the prefabricated assembled animal passage of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation status of the prefabricated animal passage;

[0026] Figure 3Schematic diagram of the installation plan of prefabricated animal passage;

[0027] Figure 4 Schematic diagram of the bridge deck;

[0028] Figure 5 Schematic diagram of the arch seat structure;

[0029] Figure 6 Schematic diagram of installing temporary supports for arch ribs;

[0030] Figure 7 Schematic diagram of the bridge deck suspended formwork system.

[0031] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0032] Figure: 1. Arch bridge; 2. Arch rib; 3. Cross-joint; 4. Wet joint; 5. Bridge deck; 6. Planting soil; 7. Vegetation; 8. Riverbed line; 9. Arch seat; 10. High-performance pier pile; 11. Pull-out pile; 12. Anchor plate; 13. Positioning cylinder; 14. Support pile; 15. Arch rib anchor end; 16. Positioning rod; 17. Positioning ring; 18. Positioning groove; 19. Expanded foundation; 20. Column foot embedded parts; 21. Steel pipe pile; 22. Connection system ; 23. Sand cylinder; 24. Longitudinal beam; 25. Horizontal beam; 26. Rack; 27. Support platform; 28. Square timber; 29. ​​Bamboo plywood; 30. Cable; 31. Steel anchor; 32. Embedded screw; 33. Connecting head; 34. Connecting block; 35. Connecting ring; 36. Connecting bolt; 37. Movable screw; 38. Limiting frame; 39. Limiting cavity; 40. Base; 41. Vertical pole; 42. Horizontal pole; 43. Hanging pole; 44. Formwork. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0034] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms cannot be understood as limiting the present invention.

[0035] Example 1

[0036] See also Figure 1-7 As shown, in this embodiment, a prefabricated and assembled animal passage construction structure is provided. The animal passage adopts an arched overpass structure. The arch bridge 1 includes a plurality of prefabricated arch ribs 2 arranged laterally at intervals, cross links 3 connecting the arch ribs 2 and perpendicularly intersecting the arch ribs 2, a bridge deck 5 cast in place on the arch ribs 2, vegetation 6 filled on the bridge deck 5, and vegetation 7 planted on the vegetation 6. A single prefabricated arch rib 2 is formed by splicing multiple segments, with wet joints 4 constructed between the segments.

[0037] In addition, the arch bridge 1 also includes an arch seat 9, which is embedded in the rock mass at both ends of the arch rib 2 and is used to anchor the two ends of the arch rib 2. The arch seat 9 has a built-in anchor plate 12. The lower part of the anchor plate 12 is connected to a pull-out pile 11 that extends into the rock layer. The upper part of the anchor plate 12 is installed with a positioning tube 13. The positioning tube 13 has the function of temporarily positioning the arch rib anchor end 15. The arch seat 9 is connected to a matrix of positioning rods 16, which are connected to a circumferential positioning ring 17. The positioning rods 16 and the positioning ring 17 form a positioning groove 18 that matches the shape of the arch rib anchor end 15. When the arch rib 2 is installed, the arch rib anchor end 15 extends into the positioning groove 18 and is simultaneously limited by the positioning tube 13. Then, a high-performance pier pile 10 is cast to connect the arch seat 9 with the arch rib anchor end 15. After the arch rib 2 is installed, a support pile 14 is constructed between the arch rib 2 and the anchor plate 12 to support the arch rib anchor end 15.

[0038] The temporary construction support of the arch rib 2 includes a steel pipe pile 21. The bottom of the steel pipe pile 21 is fixed by the expanded foundation 19 and the column foot embedded part 20. The steel pipe piles 21 are connected by a connecting system 22. The top of the steel pipe pile 21 has a sand barrel 23 for adjusting and unloading. The upper part of the sand barrel 23 has a longitudinal beam 24. The longitudinal beam 24 is installed with a cross beam 25. The cross beam 25 has a rack 26. The upper part of the rack 26 is installed with square wood 28 and bamboo plywood 29. The frame 26, square timber 28, and bamboo plywood 29 are used to accurately adjust the support elevation and match the position of the arch rib 2. After the arch rib 2 is hoisted and positioned on the support platform 27, the crossbeam 25 and the arch rib 2 are connected and fixed by a cable 30. The lower end of the cable 30 is connected to the crossbeam 25, and the upper end of the cable 30 is fixed to the top of the arch rib 2 by a steel anchor 31. It is necessary to reserve holes for the cables 30 on the arch rib 2 according to the installation position during the prefabrication stage.

[0039] The above-mentioned cast-in-place bridge deck 5 is constructed by using a suspended formwork 44. The formwork 44 suspension system is fixed to the two ends of the cross-link 3 of the arch bridge 1, including embedded screws 32 embedded in the cross-link 3, the connecting head 33 connected to the embedded screws 32, and the connecting block 34 is fixed to the connecting head 33 through a connecting ring 35 and a connecting bolt 36. The upper end of the connecting block 34 has a limit frame 38 arranged in a matrix, and multiple limit frames 38 form a limit cavity 39. A base 40 is installed in the limit cavity 39. The base 40 is connected to the connecting block 34 and the limit frame 38 by a movable screw 37. A vertical pole 41 is installed on the base 40, and a cross bar 42 is connected to the vertical pole 41. The cross bar 42 is connected to the formwork 44 through a suspension rod 43, finally forming a suspension system for the formwork 44. When the formwork 44 conflicts with the structural spatial position of the arch rib 2 and the cross-link 3, the formwork 44 can be formed by multiple unconnected sub-forms 44, and each sub-form 44 is fixed by a suspension rod 43.

[0040] Example 2

[0041] Based on the same concept, this embodiment provides a construction method of a prefabricated assembled animal passage, including the following steps:

[0042] Step 1: Prefabrication of arch rib 2 segments:

[0043] A plurality of segments of the arch rib 2 are manufactured and pre-assembled, and holes for the cables 30 to pass through need to be reserved on the arch rib 2 during the prefabrication stage.

[0044] Step 2: Construction of arch seat 9:

[0045] Excavate the rock mass at the location of the arch seat 9 to form a construction space for the arch seat 9 structure;

[0046] Construct anti-pull piles 11 at the position of the arch seat 9 to the rock layer;

[0047] Install the anchor plate 12 and the positioning tube 13 on the pull-out pile 11;

[0048] Construct the main structure of the arch seat 9, which is embedded in the rock mass at both ends of the arch rib 2;

[0049] The matrix-arranged positioning rods 16 are connected to the arch seat 9 and form positioning grooves 18 with the annular positioning ring 17 that match the shape of the arch rib anchoring end 15.

[0050] Step 3: Temporary construction support for arch rib 2:

[0051] At the set steel pipe pile 21 position, construct the expanded foundation 19 and column foot embedded parts 20 according to the riverbed line 8;

[0052] Construct the steel pipe pile 21, the bottom of which is connected to the column foot embedded part 20, and the steel pipe pile 21 is connected by the connecting system 22;

[0053] A sand barrel 23 is installed on the top of the steel pipe pile 21 for height adjustment and unloading;

[0054] A longitudinal beam 24 is installed on the upper part of the sand cylinder 23, a transverse beam 25 is installed on the longitudinal beam 24, a rack 26 is installed on the transverse beam 25, and square wood 28 and bamboo plywood 29 are installed on the upper part of the rack 26 to achieve precise adjustment of the support elevation and match the position of the arch rib 2.

[0055] Step 4: Hoisting and positioning of arch rib 2:

[0056] Hoist the arch rib 2 onto the temporary construction support;

[0057] Insert the arch rib anchor end 15 into the positioning groove 18 and limit it with the positioning tube 13;

[0058] Casting high-performance pier piles 10 to achieve the connection between the arch seat 9 and the arch rib anchor end 15;

[0059] After the arch rib 2 is installed, support piles 14 are constructed between the arch rib 2 and the anchor plate 12 to support the arch rib anchor end 15;

[0060] The arch rib 2 is connected and fixed to the cross beam 25 by a cable 30 . The lower end of the cable 30 is connected to the cross beam 25 , and the upper end is fixed to the top of the arch rib 2 by a steel anchor 31 .

[0061] Step 5: Construction of cast-in-place bridge deck 5:

[0062] Utilize the embedded screw rod 32 embedded in the cross link 3, and connect the connector 33 to the embedded screw rod 32;

[0063] Fix the connecting block 34 to the connecting head 33 through the connecting ring 35 and the connecting bolt 36;

[0064] A matrix limiting frame 38 is arranged on the upper end of the connecting block 34 to form a limiting cavity 39;

[0065] The base 40 is installed in the limiting cavity 39, and the base 40 is connected to the connecting block 34 and the limiting frame 38 by a movable screw 37;

[0066] A vertical rod 41 is installed on the base 40, and a horizontal rod 42 is connected to the vertical rod 41;

[0067] The crossbar 42 is connected to the template 44 through the suspension rod 43 to form a suspension system for the template 44. If the template 44 conflicts with the arch rib 2 and the cross-link 3 in structural space, multiple unconnected sub-templates 44 are used, and each sub-template 44 is fixed by a suspension rod 43.

[0068] The arch ribs 2 and the cross links 3 serve as a crisscross bottom frame, and the bridge deck 5 is cast in situ on this bottom frame using the suspension system of the template 44.

[0069] Step 6: Bridge deck construction:

[0070] Filling the bridge deck 5 with vegetation soil 6;

[0071] Vegetation 7 is planted on the vegetation soil 6 to form a vegetation layer, forming a complete animal passage.

[0072] The prefabricated and assembled animal passage is constructed by the above-mentioned prefabricated and assembled animal passage construction method.

[0073] The parts not described in detail in this utility model are prior art, so this utility model does not describe them in detail.

[0074] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0075] Although this article uses a lot of professional terms, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0076] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, any product with the same or similar technical solutions as the present invention falls within the scope of protection of the present invention.

Claims

1. The prefabricated animal passage construction structure adopts an arched overpass structure, which is characterized by: It includes an arch bridge (1), a temporary support and a suspension system; The arch bridge (1) comprises a plurality of prefabricated arch ribs (2) arranged at intervals in the transverse direction, cross links (3) connecting the arch ribs (2) and intersecting the arch ribs (2) vertically, a bridge deck (5) cast in situ on the arch ribs (2), vegetation (6) filled on the bridge deck (5), vegetation (7) planted on the vegetation (6), and an arch seat (9); a single prefabricated arch rib (2) is formed by splicing a plurality of segments, and wet joints (4) are constructed between the segments; the arch seat (9) is embedded in the rock mass at both ends of the arch rib (2) and is used to anchor the two ends of the arch rib (2). The arch seat (9) is equipped with an anchor plate (12), the lower part of the anchor plate (12) is connected to an anti-pulling pile (11) extending into the rock layer, and the upper part of the anchor plate (12) is equipped with a positioning cylinder (13), which has the function of temporarily positioning the arch rib anchor end (15); wherein, the arch seat (9) is further connected to positioning rods (16) arranged in a matrix, the positioning rods (16) are connected to an annular positioning ring (17), and the positioning rods (16) and the positioning ring (17) form a positioning groove (18) that matches the shape of the arch rib anchor end (15); The temporary support comprises a steel pipe pile (21) and a cable (30). The bottom of the steel pipe pile (21) is positioned and fixed by an expanded foundation (19) and a column foot embedded part (20). The steel pipe piles (21) are connected by a connecting system (22). The top of the steel pipe pile (21) is provided with a sand barrel (23) for height adjustment and unloading. The upper part of the sand barrel (23) is provided with a longitudinal beam (24). A cross beam (25) is installed on the longitudinal beam (24). A bent frame (26) is installed on the cross beam (25). The square timber (28) and bamboo plywood (29), the bent frame (26), the square timber (28), and the bamboo plywood (29) are used to precisely adjust the support elevation and match the position of the arch rib (2); wherein, the cable (30) is used to connect and fix the crossbeam (25) and the arch rib (2) after the arch rib (2) is hoisted and positioned on the support platform (27), and the lower end of the cable (30) is connected to the crossbeam (25), and the upper end of the cable (30) is fixed to the top of the arch rib (2) by a steel anchor (31); The suspension system is fixed at both ends of the transverse link (3) of the arch bridge (1), and comprises a pre-embedded screw rod (32) pre-embedded in the transverse link (3), a connecting head (33) and a connecting block (34); the connecting head (33) is connected to the pre-embedded screw rod (32); the connecting block (34) is fixed to the connecting head (33) through a connecting ring (35) and a connecting bolt (36); the upper end of the connecting block (34) is provided with a limiting frame (38) arranged in a matrix; the plurality of limiting frames (38) form a limiting cavity (39); a base (40) is installed in the limiting cavity (39); the base (40) is connected to the connecting block (34) and the limiting frame (38) by a movable screw rod (37); a vertical rod (41) is installed on the base (40); the vertical rod (41) is connected to a cross rod (42); the cross rod (42) is connected to a template (44) through a hanging rod (43), and finally a suspension system of the template (44) is formed.

2. The prefabricated animal passage construction structure according to claim 1, characterized in that: The arch ribs (2) and the cross links (3) serve as a bottom frame that is crisscrossed in both directions.

3. The prefabricated animal passage construction structure according to claim 1, characterized in that: The arch seat (9) is reserved with space for installing the arch ribs (2) and for casting the high-performance pier piles (10).

4. The prefabricated animal passage construction structure according to claim 1, characterized in that: The cables (30) are prestressed steel strands, which achieve a fixed connection between the arch rib (2) and the temporary construction support, thereby preventing the arch rib (2) from shifting.

5. The prefabricated assembled animal passage construction structure according to any one of claims 1 to 4, characterized in that: It also includes a plurality of unconnected sub-templates (44) for use when the template (44) conflicts with the structural space position of the arch rib (2) and the cross-link (3). Each sub-template (44) is fixed by a hanging rod (43).

6. The prefabricated assembled animal passage construction structure according to any one of claims 1 to 4, characterized in that: The material of the arch rib (2) is ultra-high performance concrete.

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