Prefabricated wave pile ecological revetment construction method

Abstract

This invention relates to a prefabricated assembled wave pile ecological revetment construction method, comprising the following steps: fabrication and installation of a guide frame, wave pile driving, installation of wall-mounted steel plates, installation of integrated channel steel, capping beam construction, and slope protection system construction. The beneficial effects of this invention are: A limiting auxiliary guide frame is added to the traditional wave pile construction guide frame, allowing for rapid adjustment of the wave pile position during construction using the physical properties of the internal ball bearings, significantly improving the on-site wave pile positioning efficiency; Wall-mounted steel plates and integrated channel steel are added to the traditional wave pile body, with staggered joints between the wall-mounted steel plate connection seams and the wave pile connection seams, greatly enhancing the overall integrity of the wave pile; Integrated side and bottom formwork is used, and by rationally utilizing the installed inner wall tie bars and wall-mounted steel plate structure, the slope-adjacent side formwork is fixed first, and then the water-adjacent side formwork is fixed using tie rods, achieving high-precision capping beam support.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy engineering, and in particular relates to a construction method for prefabricated assembled wave pile ecological revetment, which is applicable to riverbank protection projects and can also be widely used in landscaping, highway, overpass slope protection, and community waterfront protection projects. Background Technology

[0002] With the vigorous development of urban construction, riverbank protection has become an important infrastructure project for the development of urban riverbanks. Traditional riverbank protection structures almost entirely use dry-laid stone blocks, mortar-laid stone, precast blocks, and poured concrete. This type of rigid revetment not only has a monotonous appearance, but in most cases, it is also out of harmony with the surrounding landscape, which goes against the contemporary trend of building ecological revetments in river management.

[0003] Wave pile revetments are characterized by being green, environmentally friendly, energy-saving, and durable. They overcome the shortcomings of traditional water conservancy revetment and slope protection projects, such as high material costs, monotonous appearance, long construction periods, and low construction efficiency. The wave-shaped appearance is particularly suitable for water conservancy revetment and slope protection, as well as landscape river channel renovation projects. However, during the construction of existing wave piles, it is difficult to control the verticality of the pile body, resulting in unreliable fixation to the construction surface after installation, which easily leads to the risk of toppling. At the same time, the connection between adjacent wave piles is not reliable during construction, and there is a phenomenon of mutual detachment. These are issues that urgently need to be addressed.

[0004] In view of this, there is an urgent need to invent a prefabricated wave pile ecological revetment construction method that is fast in construction, high in construction accuracy, strong in post-construction stability, and has outstanding economic and technical benefits. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a construction method for prefabricated assembled wave pile ecological revetment.

[0006] This prefabricated wave pile ecological revetment construction method includes the following steps:

[0007] S1. Fabrication and installation of the guide frame: The limiting auxiliary guide frame is mounted on the steel waler guide frame via pulleys;

[0008] S2. Corrugated pile installation: The corrugated piles are hoisted into the limiting auxiliary guide frame, and the position of the corrugated piles is adjusted using ball bearings. After the piles are driven, the limiting auxiliary guide frame is slid to the next construction area.

[0009] S3. Installation of wall-mounted steel plates: Prefabricated wall-mounted steel plates are installed in sections on the upper part of the slope side of the wave pile;

[0010] S4. Installation of integrated channel steel: Install integrated channel steel in sections at the top of the corrugated pile;

[0011] S5. Construction of the capping beam: Erect formwork on top of the wave piles and pour the capping beam;

[0012] S6. Construction of slope protection system: A backfill soil layer is set in the area enclosed by the wave piles and the original slope to form an ecological bank protection.

[0013] Preferably, in step S1, a wavy surface groove is provided on the inner side of the limiting auxiliary guide frame through a surface support bracket. A ball bearing is installed in the wavy surface groove and is fixed by a ball bearing limiting shaft. A limiting rod is provided on the steel waler guide frame, and the steel waler guide frame uses the limiting rod to fix the position of the limiting auxiliary guide frame.

[0014] Preferably, in step S2, after confirming the verticality of the wave pile with a theodolite, vibration driving of the pile begins. After the pile position in the limiting auxiliary guide frame is filled, the limiting rod is released, and the limiting auxiliary guide frame is slid to the next construction area. After all wave piles are driven, the limiting auxiliary guide frame is removed. The top of the wave pile is provided with a wave pile top plate and a wave pile top reserved reinforcement.

[0015] Preferably, in step S3, a pre-drilled hole is provided on the upper slope side of the wave pile, and prefabricated wall-mounted steel plates are uniformly installed in sections on the upper slope side of the wave pile. The wall-mounted steel plates are anchored to the slope side of the wave pile using inner wall tie bars and anchoring rings. Adjacent wall-mounted steel plates are welded together, and the joints of the wall-mounted steel plates are staggered with the joints of the wave piles. The inner wall tie bars have connecting threads on their surface and are welded with anchoring rings in the middle.

[0016] Preferably, in step S3, the steel plate attached to the wall has a through-type tie bar hole, the hole position of which is consistent with the reserved hole on the side of the wave pile, and the shape of the steel plate attached to the wall is consistent with the shape of the side wall of the wave pile.

[0017] As a preferred option, after the steel plate attached to the wall is installed, multi-point synchronous anti-deviation compaction grouting is carried out. The area within the projection range of the cap beam on the slope side of the wave pile is the compaction grouting zone. The intermittent multi-point synchronous grouting method is used to compact the grouting zone. The center point of the compaction grouting zone is the same as the center of the wave pile side wall.

[0018] As a preferred embodiment, in step S4, the integrated channel steel has a U-shaped structure, and two integrated channel steels are installed in parallel on the top of the wave pile; the bottom of the integrated channel steel is provided with a reserved hole for the integrated channel steel, and the reserved reinforcement at the top of the wave pile passes through the reserved hole of the integrated channel steel and is welded to the integrated channel steel; adjacent segments of the integrated channel steel are also welded together.

[0019] Preferably, in step S5, the capping beam formwork includes a slope-side formwork and a water-side formwork. The bottom formwork of the capping beam is customized according to the cross-sectional structure of the wave pile. The slope-side formwork is installed and fixed to the slope side of the wall-mounted steel plate using inner wall tie bars. The water-side formwork and the slope-side formwork are fixed together by upper and lower tie rods. The slope-side formwork is provided with a formwork groove, and the inner wall tie bars are inserted into the formwork groove and anchored using locking bolts. After the capping beam reinforcement is tied, concrete is poured in the capping beam construction area to form the capping beam.

[0020] Preferably, in step S6, a concrete capping is poured on top of the backfill layer, and a slope protection structure is set on the surface of the backfill layer and green plants are cultivated.

[0021] The prefabricated wave pile ecological revetment is obtained by any of the methods described above.

[0022] The beneficial effects of this invention are:

[0023] 1) This invention develops a corrugated clamp construction guide frame technology. Based on the traditional corrugated pile construction guide frame, a limiting auxiliary guide frame is added. During construction, the physical characteristics of the ball bearings inside the limiting auxiliary guide frame can be used to quickly adjust the position of the corrugated pile, which greatly improves the on-site positioning efficiency of the corrugated pile. At the same time, it solves the construction problem that the corrugated pile is prone to deviation after being driven, and also improves the connection tightness of adjacent corrugated piles.

[0024] 2) This invention proposes an integral connection reinforcement technology for the top of the wave pile. Based on the traditional wave pile body, a wall-mounted steel plate and an integral channel steel are added. The connection seam of the wall-mounted steel plate is staggered with the connection seam of the wave pile, which greatly improves the integrity of the wave pile. In addition, the inner wall tie bar is cleverly set, which solves the installation problem of the wall-mounted steel plate on the one hand, and improves the connection strength between the wave pile and the revetment on the other hand, thus strengthening the stability of the structural system.

[0025] 3) This invention developed a construction technology for reinforced concrete cap beams. It adopts an integrated side formwork and bottom formwork, and by making reasonable use of the installed inner wall tie bars and wall-mounted steel plate structure, the slope side formwork is fixed first, and then the water side formwork is fixed by tie rods. This achieves high-precision formwork support for the cap beam and ensures the construction quality of the wave pile cap beam. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the limiting auxiliary guide frame structure in this invention;

[0027] Figure 2 This is a schematic diagram of the ball bearing arrangement in this invention;

[0028] Figure 3 This is a schematic diagram showing the connection between the limiting auxiliary guide frame and the steel waler guide frame in this invention;

[0029] Figure 4 This is a schematic diagram of the wall-mounted steel plate installation in this invention;

[0030] Figure 5 This is a schematic diagram of the compaction grouting sequence in this invention;

[0031] Figure 6 This is a schematic diagram of the cross-section of the wave pile system in this invention;

[0032] Figure 7 This is a schematic diagram of the installation of the integrated channel steel in this invention;

[0033] Figure 8 This is a schematic diagram of the crown beam formwork system in this invention;

[0034] Figure 9 This is a schematic diagram of the crown beam structure in this invention;

[0035] Figure 10 This is a schematic diagram of the ecological bank protection system in this invention.

[0036] In the diagram: 1-Limiting auxiliary guide frame; 2-Facing bracket; 3-Wave-shaped facing rail groove; 4-Ball ball limiting shaft; 5-Ball ball; 6-Wave pile main reinforcement; 7-Wave pile; 8-Limiting rod; 9-Wave pile to be installed; 10-Steel waler guide frame; 11-Pulley; 12-Wave pile top reserved reinforcement; 13-Wave pile top plate; 14-Inner wall tie bar; 15-Wall facing steel plate; 16-Anchoring ring; 17-Compacting grouting zone; 1 8-Grouting area; 19-Cover beam construction area; 20-Reserved hole for integrated channel steel; 21-Integrated channel steel; 22-Slope side formwork; 23-Locking bolt; 24-Formwork groove; 25-Upper tie rod; 26-Water-side formwork; 27-Lower tie rod; 28-Cover beam; 29-Reserved hole for wave pile side; 30-Backfill layer; 31-Concrete capping; 32-Slope protection structure; 33-Greenery; 34-Riverbed line. Detailed Implementation

[0037] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that those skilled in the art can make several modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0038] Example 1

[0039] This prefabricated wave pile ecological revetment construction method includes the following steps:

[0040] S1. Fabrication and installation of guide frame: The steel waler guide frame is initially welded from structural steel. Then, the limiting auxiliary guide frame is mounted on the steel waler guide frame using pulleys, and the position of the limiting auxiliary guide frame is fixed by the limiting rod on the steel waler guide frame.

[0041] In this step, such as Figure 1 , Figure 2 As shown, the limiting auxiliary guide frame is provided with a wavy surface groove through the surface bracket, and a ball bearing is installed in the wavy surface groove. The ball bearing is fixed by the ball bearing limiting shaft.

[0042] S2. Wave pile installation: Initially, the wave piles are hoisted into the limiting auxiliary guide frame. The position of the wave piles is adjusted using the ball bearings in the limiting auxiliary guide frame. After confirming the verticality of the pile body with a theodolite, high-frequency vibration is started to drive the piles. After the pile position in the limiting auxiliary guide frame is filled, the limiting rod is released and the limiting auxiliary guide frame is slid to the next construction area. After all the wave piles are installed, the guide frame is removed.

[0043] In this step, such as Figure 4 As shown, the top of the wave pile is equipped with a top plate and a top reserved reinforcement bar, and the upper part of the pile body has a wave pile side reserved hole on the slope side.

[0044] S3. Installation of wall-mounted steel plates: Prefabricated wall-mounted steel plates are uniformly installed in sections on the upper part of the slope side of the wave pile. The wall-mounted steel plates are anchored in the reserved holes on the side of the wave pile using the inner wall tie bars and anchoring rings. Adjacent sections of wall-mounted steel plates are welded together, and the joints of the wall-mounted steel plates and the joints of the wave piles are staggered.

[0045] In this step, such as Figure 4 As shown, the inner wall tie bar has connecting threads on its surface and an anchoring ring welded in the middle; the wall-mounted steel plate has a reserved through tie bar hole, the hole position is consistent with the reserved hole on the side of the wave pile, and the shape of the wall-mounted steel plate is consistent with the shape of the side wall of the wave pile.

[0046] Multi-point synchronous anti-deviation compaction grouting: Intermittent multi-point synchronous grouting is used to compact the grout within the projection range of the cap beam on the slope side of the wave pile, and the center point of the grouting is the same as the center of the side wall of the wave pile.

[0047] S4. Installation of integrated channel steel: Integrated channel steel is installed in sections at the top of the corrugated pile. The reserved reinforcement bars at the top of the corrugated pile are inserted into the reserved holes of the integrated channel steel and welded to the integrated channel steel. The adjacent sections of integrated channel steel are also welded together.

[0048] In this step, such as Figure 7 As shown, the integrated channel steel has a U-shaped structure, with two integrated channel steels installed in parallel on the top of the wave pile.

[0049] S5. Construction of the capping beam: The capping beam formwork adopts an integrated side formwork and bottom formwork. The bottom formwork is customized according to the cross-sectional structure of the wave pile. The slope side formwork is installed and fixed by the inner wall tie bars. The water side formwork is fixed to the slope side formwork by the upper tie rod and the lower tie rod. After the capping beam reinforcement is tied, concrete is poured in the capping beam construction area to form the capping beam.

[0050] In this step, such as Figure 8 As shown, the cap beam formwork consists of slope-side formwork and water-side formwork. The slope-side formwork is provided with a formwork groove, and the inner wall tie bars are inserted into the formwork groove and anchored by locking bolts.

[0051] S6. Construction of the slope protection system: Backfill soil is set in the area enclosed by the wave pile and the original slope, and concrete is poured on the top of the backfill soil layer. A slope protection structure is set on the surface of the backfill soil layer and green plants are planted to form an ecological bank protection.

[0052] Example 2

[0053] As another embodiment, the prefabricated assembled wave pile ecological revetment obtained by the method in Embodiment 1 includes wave piles 7.

[0054] The upper part of the wave pile 7 on the slope side is equipped with a wall-mounted steel plate 15 in sections through the inner wall tie bar 14. The shape of the wall-mounted steel plate 15 is consistent with the shape of the side wall of the wave pile 7. The upper slope side of the wave pile 7 is provided with a wave pile side reserved hole 29. The wall-mounted steel plate 15 is reserved with a through tie bar hole. The hole position of the through tie bar hole is consistent with the wave pile side reserved hole 29. The wall-mounted steel plate 15 is anchored to the slope side of the wave pile 7 by the inner wall tie bar 14 and the anchoring ring 16. Adjacent sections of the wall-mounted steel plate 15 are welded together. The connection seam of the wall-mounted steel plate 15 is staggered with the connection seam of the wave pile 7. The surface of the inner wall tie bar 14 is provided with connecting threads. The middle of the inner wall tie bar 14 is welded with an anchoring ring 16.

[0055] The top of the wave pile 7 is provided with a wave pile top plate 13 and a wave pile top reserved reinforcement 12. The integrated channel steel 21 has a U-shaped structure. Two integrated channel steels 21 are installed in parallel on the top of the wave pile 7. The bottom of the integrated channel steel 21 is provided with an integrated channel steel reserved hole 20. The wave pile top reserved reinforcement 12 passes into the integrated channel steel reserved hole 20 and is welded to the integrated channel steel 21. Adjacent segments of the integrated channel steel 21 are also welded together.

[0056] like Figure 5 and Figure 6 As shown, below the riverbed line 34, a compaction grouting zone 17 is provided within the projection range of the cap beam on the slope side of the wave pile 7, and the center point of the compaction grouting zone 17 coincides with the center of the side wall of the wave pile 7.

[0057] like Figure 7As shown, the top section of the wave pile 7 is equipped with a continuous channel steel 21, the top of the wave pile 7 is cast with a cap beam 28, and the backfill soil layer 30 is set in the area enclosed by the wave pile 7 and the original slope.

[0058] like Figure 8 and Figure 9 As shown, the formwork for the capping beam 28 includes a bottom formwork, a slope-side formwork 22, and a water-side formwork 26. The bottom formwork of the capping beam 28 is customized according to the cross-sectional structure of the wave pile 7. The slope-side formwork 22 is installed and fixed on the slope side of the wall-mounted steel plate 15. The slope-side formwork 22 is provided with a formwork groove 24. The slope-side formwork 22, the wall-mounted steel plate 15, and the wave pile 7 are fixed by inner wall tie bars 14. The inner wall tie bars 14 are inserted into the formwork groove 24 and anchored by locking bolts 23. The water-side formwork 26 and the slope-side formwork 22 are fixed by upper tie rods 25 and lower tie rods 27. The water-side formwork 26 and the slope-side formwork 22 form a capping beam construction area 19, in which the capping beam 28 is poured.

[0059] like Figure 10 As shown, a concrete capping 31 is poured on top of the backfill layer 30, and a slope protection structure 32 and green plants 33 are provided on the surface of the backfill layer 30.

[0060] Example 3

[0061] As another embodiment, this third embodiment presents the construction device used in this prefabricated assembled wave pile ecological revetment construction method, such as... Figures 1 to 4 As shown, it includes a steel waler guide frame 10 and a limiting auxiliary guide frame 1. The steel waler guide frame 10 is laid along the setting direction of the wave pile 7. The limiting auxiliary guide frame 1 is mounted on the steel waler guide frame 10 by pulleys 11. The steel waler guide frame 10 is fixed to the limiting auxiliary guide frame 1 by a limiting rod 8.

[0062] The inner side of the limiting auxiliary guide frame 1 is provided with a wavy surface rail groove 3 through the surface bracket 2. The wavy surface rail groove 3 is equipped with ball bearings 5, which are fixed by ball bearing limiting shafts 4. The wavy surface rail grooves 3 on both sides form a wavy slot that matches the wave pile 7. When the wave pile 7 is driven into the pile, the wave pile 7 is inserted into the wavy slot.

[0063] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 2 can be referred to each other, and will not be repeated in this application.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A construction method for prefabricated assembled wave pile ecological revetment, characterized in that, Includes the following steps: S1. Fabrication and installation of the guide frame: The limiting auxiliary guide frame (1) is mounted on the steel waler guide frame (10) via pulleys (11); the inner side of the limiting auxiliary guide frame (1) is provided with a wave-shaped surface rail groove (3) via a surface bracket (2), and a ball bearing (5) is installed in the wave-shaped surface rail groove (3). The ball bearing (5) is fixed by a ball bearing limiting shaft (4). The steel waler guide frame (10) is provided with a limiting rod (8), and the steel waler guide frame (10) uses the limiting rod (8) to fix the position of the limiting auxiliary guide frame (1); S2. Wave pile installation: Hoist the wave pile (7) into the limiting auxiliary guide frame (1), use the ball bearings (5) to adjust the position of the wave pile (7), after the pile is driven, slide the limiting auxiliary guide frame (1) to the next construction area. S3. Installation of wall-mounted steel plate: Prefabricated wall-mounted steel plate (15) is installed in sections on the upper part of the slope side of the wave pile (7); S4. Installation of integrated channel steel: Install integrated channel steel (21) in sections at the top of the wave pile (7); S5. Construction of the capping beam: The capping beam (28) is poured on the top of the wave pile (7). S6. Construction of the slope protection system: A backfill soil layer (30) is set up in the area enclosed by the wave pile (7) and the original slope to form an ecological bank protection.

2. The prefabricated assembled wave pile ecological revetment construction method according to claim 1, characterized in that, In step S2, after confirming the verticality of the wave pile (7) with a theodolite, vibration driving of the pile begins. After the pile position in the limiting auxiliary guide frame (1) is filled, the limiting rod (8) is released and the limiting auxiliary guide frame (1) is slid to the next construction area. After all the wave piles (7) are driven, the limiting auxiliary guide frame (1) is removed. The top of the wave pile (7) is provided with a wave pile top plate (13) and a wave pile top reserved reinforcement (12).

3. The prefabricated assembled wave pile ecological revetment construction method according to claim 1, characterized in that, In step S3, a pre-reserved hole (29) is provided on the upper slope side of the wave pile (7). Precast wall-mounted steel plates (15) are uniformly installed in sections on the upper slope side of the wave pile (7). The wall-mounted steel plates (15) are anchored to the slope side of the wave pile (7) using inner wall tie bars (14) and anchor rings (16). Adjacent sections of wall-mounted steel plates (15) are welded together. The joint of the wall-mounted steel plates (15) is staggered with the joint of the wave pile (7). The inner wall tie bars (14) have connecting threads on their surface and are welded with anchor rings (16) in the middle.

4. The prefabricated assembled wave pile ecological revetment construction method according to claim 3, characterized in that, In step S3, the wall-mounted steel plate (15) has a through-type tie bar hole. The hole position of the through-type tie bar hole is consistent with the reserved hole (29) on the side of the wave pile, and the shape of the wall-mounted steel plate (15) is consistent with the side wall shape of the wave pile (7).

5. The construction method for prefabricated assembled wave pile ecological revetment according to claim 1, characterized in that, After the steel plate attached to the wall (15) is installed, multi-point synchronous anti-deviation compaction grouting is carried out. The area within the projection range of the cap beam on the slope side of the wave pile (7) is the compaction grouting area (17). The intermittent multi-point synchronous grouting method is used to compact the grouting of multiple compaction grouting areas (17). The center point of the compaction grouting area (17) is the same as the center of the side wall of the wave pile (7).

6. The construction method for prefabricated assembled wave pile ecological revetment according to claim 2, characterized in that, In step S4, the integrated channel steel (21) is a U-shaped structure, and two integrated channel steels (21) are installed in parallel on the top of the wave pile (7); the bottom of the integrated channel steel (21) is provided with a reserved hole (20) for the integrated channel steel, and the reserved reinforcement (12) at the top of the wave pile is inserted into the reserved hole (20) of the integrated channel steel and welded to the integrated channel steel (21). The adjacent segments of the integrated channel steel (21) are also welded together.

7. The prefabricated assembled wave pile ecological revetment construction method according to claim 1, characterized in that, In step S5, the cap beam (28) formwork includes the slope side formwork (22) and the water side formwork (26). The bottom formwork of the cap beam (28) is customized according to the cross-sectional structure of the wave pile (7). The slope side formwork (22) is installed and fixed on the slope side of the wall-mounted steel plate (15) using the inner wall tie bar (14). The water side formwork (26) and the slope side formwork (22) are fixed by the upper tie rod (25) and the lower tie rod (27). The slope side formwork (22) is provided with a formwork groove (24). The inner wall tie bar (14) is inserted into the formwork groove (24) and anchored by the locking bolt (23). After the cap beam (28) reinforcement is tied, concrete is poured in the cap beam construction area (19) to form the cap beam (28).

8. The construction method for prefabricated assembled wave pile ecological revetment according to claim 1, characterized in that, In step S6, a concrete capping (31) is poured on top of the backfill layer (30), a slope protection structure (32) is set on the surface of the backfill layer (30), and green plants (33) are planted.

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