Construction method for upgrading and renovating the wave-breaking wall on the top of the existing embankment

Abstract

The present invention proposes a construction method for upgrading and reconstructing the wave-breaking wall on the top of an existing levee, which relates to the technical field of wave-breaking walls and mainly includes the following steps: S1, foundation treatment: cleaning and roughening the top of the original wave-breaking wall; S2, constructing a concrete foundation; S3, constructing a curved wave-breaking wall; S4, installing a pressure top; S5, installing a diversion strip; S6, installing a flower trough, etc. The present invention adopts a curved wave-breaking wall to heighten and reconstruct the existing upright wave-breaking wall, changes the direction of wave movement through an arc, converts part of the kinetic energy of the wave into potential energy, and changes the direction of movement of the wave through the arc, so that it is guided back to the open sea through the arc top, which can improve the wave elimination effect and enhance the landscape effect of the levee, and has good economy and rationality. The present invention adopts a construction process of first constructing a concrete foundation and then constructing a curved wave-breaking wall, and adopts segmented casting, which reduces the difficulty of installing the template and facilitates the construction of workers.

Description

Technical Field

[0001] The invention relates to the technical field of wave-breaking walls, and in particular to a construction method for upgrading and reconstructing a wave-breaking wall on a dam top in service. Background Art

[0002] Wave-breaking walls are walls set up at the front of the dam crest to prevent waves from crossing over the dam crest. They are mostly used in reservoirs, rivers, and embankments, and can prevent waves, floods, and water. At present, some earth-rock dam projects have been in operation for a long time. Affected by factors such as the quality of dam filling construction, reserved superelevation, dam settlement during operation, or characteristic water level changes, the elevation of the dam crest (wave-breaking wall top) cannot meet the current specifications, and it is urgent, necessary, and realistic to raise the dam crest. Figure 1 As shown in the figure, the previous wave-breaking wall structure is mainly a concrete structure, and the part above the dam top is upright. When raising the top of the wave-breaking wall, there are generally two methods:

[0003] One is to adopt an assembled structure, such as the patent with authorization announcement number CN 206204869 U, which discloses a wave-breaking wall device that can be quickly disassembled and assembled. It is set on the wave-breaking wall to increase the elevation of the wave-breaking wall and reduce overtopping waves, and includes: a metal plate, a clamp base, an anchor zipper and an anchor pile; the metal plate is detachably fixed to the wave-breaking wall body through the clamp base in the same vertical plane as the wave-breaking wall; the anchor pile is fixed to the wave-breaking platform on the wave-facing side; the anchor zipper is arranged in an oblique manner between the metal plate and the anchor pile. Although the above-mentioned assembled solution has the function of being detachable, the overall cost is relatively high, and the engineering durability is not as long as the service life of the concrete structure, and there is a disadvantage of high maintenance cost; in addition, the metal plate is installed on the top of the wave-breaking wall, but because the top of the old wave-breaking wall is eroded by wind and rain, the top will age, and some areas will fall off and other diseases, and the metal plate has certain requirements for the installation base, which leads to some difficulties during construction.

[0004] The second is to use concrete structures, such as the upgraded structure and construction method of the dam top road on active levees published in the patent with authorization announcement number CN109371906B, which plants steel bars on the top of the original wave-breaking wall and connects the planted steel bars to form an integrally formed reinforcement frame; the elevated wave-breaking wall formwork adopts an articulated section formwork, and the formwork is fixed by using shelves, symmetrical plywood, clamping screws, upper symmetrical ear plates, and inner brackets of the formwork. The above-mentioned construction method is simply to raise the height in an upright manner without considering the wave-breaking and energy-dissipating effect. The waves on the upright wave-breaking wall hit the wave-breaking wall obliquely, causing the waves to reflect and break. The direction of movement of the waves after reflection is obliquely upward, and there is a certain angle with the horizontal plane. Therefore, under the same conditions, the upright wave-breaking wall has a large amount of overtopping and its wave-dissipating effect is limited. Moreover, the appearance of the upright wave-breaking wall is not beautiful enough, it is too monotonous, and it cannot enhance the landscape effect of the levee.

[0005] The above two methods have their own advantages and disadvantages. Therefore, it is necessary to further study how to increase the height and optimize the existing vertical wave-breaking walls in terms of structure, construction method, landscape effect, etc. Summary of the invention

[0006] In order to solve the above technical problems, the present invention proposes a construction method for upgrading and reconstructing the existing embankment dam top wave-breaking wall. The purpose of the present invention is to use a curved wave-breaking wall to heighten and reconstruct the existing vertical wave-breaking wall, improve the wave-breaking effect, and configure a flower trough to enhance the landscape effect of the embankment, which has good economy and rationality.

[0007] The technical solution of the present invention to solve the technical problem is:

[0008] The present invention proposes a construction method for upgrading and renovating an existing embankment dam top wave-breaking wall, comprising the following steps:

[0009] S1, foundation treatment: clean and roughen the top of the original wave-breaking wall;

[0010] S2, build concrete foundation:

[0011] S21, drilling holes on the top of the original wave-breaking wall and installing the first vertical reinforcement;

[0012] S22, erecting the first formwork group on both sides of the original wave-breaking wall to form the first pouring space, wherein:

[0013] The first template group includes two sets of vertical templates, and the two sets of vertical templates are connected by tension screws, and nuts are screwed on both ends of the tension screws;

[0014] S23, installing a first steel cage in the first casting space, wherein the first steel cage is fixedly connected to the first vertical reinforcement;

[0015] S24, pouring concrete into the first pouring space to form a first-stage concrete, and pre-embedding a second vertical reinforcement in the first-stage concrete, the first-stage concrete serving as a concrete foundation;

[0016] S25, after the first phase of concrete curing is completed, the vertical formwork in the first formwork group is removed, and the tension screws and nuts are retained;

[0017] S3, build a curved wave-breaking wall:

[0018] S31, installing a plurality of support brackets: both ends of each tension screw are bolted to the support brackets respectively, and a pad is laid on the support brackets to form a base surface for installing the second formwork group;

[0019] S32, installing a second steel cage on the top of the concrete foundation, wherein the bottom end of the second steel cage is connected to the second vertical reinforcement, and the top end of the second steel cage is fixedly connected to the first sleeve;

[0020] S33, installing a second formwork group above the foundation surface to form a second pouring space with an arc-shaped recess above the concrete foundation; pouring concrete in the second pouring space to form a second-phase concrete, which is a curved wave-breaking wall;

[0021] S34, after the second phase concrete curing is completed, the second formwork group and the supporting frame are removed to obtain a curved wave-breaking wall, which together with the concrete foundation constitutes a heightened section of the original wave-breaking wall.

[0022] Preferably, the specific construction method for supporting the first formwork group in S22 is: drill holes on both sides of the original wave-breaking wall, install expansion bolts, connect the tripod with the expansion bolts, and form an installation base for supporting the first formwork group; then set up the vertical formwork in the first formwork group on the top of the corresponding tripod, and the two sets of vertical formworks are connected by tension screws and nuts.

[0023] Preferably, the specific steps of installing the second formwork group in S33 are: the second formwork group includes an inner formwork, an arc formwork and an outer formwork, the inner formwork is connected to the arc formwork to form an inner formwork assembly; the arc formwork is used to construct an arc-shaped recess; the inner formwork assembly and the outer formwork are respectively set on both sides of the concrete foundation, and the bottom ends of the inner formwork assembly and the outer formwork are pressed on the pad, the outer walls of the inner formwork and the outer formwork are connected with diagonal braces, and the diagonal braces are supported on the pad, and the area between the inner formwork assembly and the outer formwork constitutes a second casting space.

[0024] Preferably, it also includes S4, installing the pressure top: the pressure top is a prefabricated concrete structure, the pressure top has a countersunk hole matching the first sleeve, the pressure top is pressed on the top of the arc-shaped wave-breaking wall, a fastening bolt is passed through the countersunk hole, and the bottom end of the fastening bolt is threadedly connected to the first sleeve; the connection between the pressure top and the arc-shaped wave-breaking wall is achieved by the fastening bolt.

[0025] Preferably, it also includes S5, installing a diverter strip: a hook is also pre-buried at the bottom of the pressure top; a diverter strip is connected between the hook and the tension screw, and the diverter strip is arranged in a vertical strip shape.

[0026] Preferably, the diverter strip is made of waste tires.

[0027] Preferably, it also includes S6, installing a flower trough, wherein the flower trough is a U-shaped structure, the top pressure side wall is pre-embedded with a second sleeve with an internal thread, the flower trough side wall is penetrated by a locking bolt, and the locking bolt is threadedly connected to the second sleeve to realize the hanging of the flower trough; the flower trough is filled with planting soil, and green plants are planted in the planting soil.

[0028] Preferably, the bottom of the flower trough is also supported by a top support frame, the bottom of the top support frame is bolted to the tension screw rod, and the top of the top support frame is supported on the bottom of the flower trough.

[0029] Preferably, the supporting frame includes a vertical pole, the top of the vertical pole is fixedly connected with a cross bar, and reinforcing ribs are fixedly connected between the cross bar and the vertical pole to form a triangular structure; one end of the cross bar is also fixedly connected with a guard edge for blocking at the side wall of the flower groove to achieve positioning; a waist hole is opened near the bottom of the vertical pole, and one end of the tension screw rod freely passes through the waist hole.

[0030] The above technical solution has the following advantages or beneficial effects:

[0031] 1. The present invention upgrades and transforms the original upright wave-breaking wall to obtain a curved wave-breaking wall with an arc-shaped notch on the top. The main feature of the curved wave-breaking wall is that the water-facing surface is a deep arc. The waves climb along the arc, and the anti-pickup guide section formed by the top pressure guides the waves back. The movement direction of the waves when leaving the wave-breaking wall is the inner side of the embankment, and the angle with the horizontal plane is close to 0°. Under the same working conditions, the waves of the upright wave-breaking wall obliquely impact the wave-breaking wall, resulting in wave reflection and breaking. The movement direction of the waves after reflection is obliquely upward, and there is a certain angle with the horizontal plane. Therefore, under the same conditions, the overtopping amount of the curved wave-breaking wall is smaller than that of the upright wave-breaking wall. The energy of the wave spray is reduced by the arc action of the curved wave-breaking wall, which has a good energy dissipation effect.

[0032] The wall has obvious wave-proof advantages.

[0033] 2. The present invention adopts a construction process of first constructing a concrete foundation and then constructing a curved wave-breaking wall, which has two advantages. First, it adopts segmented prefabrication to reduce the construction difficulty of constructing the curved recess, reduce the difficulty of installing the template, and facilitate workers' construction; second, the concrete foundation constructed first can provide a working base surface for the subsequent construction of the curved wave-breaking wall. The tension screws left when constructing the concrete foundation can be used to provide installation points for the subsequent construction process. In conjunction with the supporting frame, an installation base surface can be provided for the second template assembly to form an overhead support, thereby reducing the height of the template and facilitating workers' construction operations.

[0034] 3. The present invention provides a pressure top, which cooperates with the arc-shaped wave-breaking wall to form an anti-pickup guide section, which can effectively guide the return of waves and achieve energy dissipation; the pressure top adopts a prefabricated process, and an assembled method is adopted during construction, which effectively shortens the construction time and achieves rapid installation.

[0035] 4. The present invention introduces a diverter strip, which is arranged vertically to divert the waves, reduce the impact force, and play a good energy dissipation role. In addition, the diverter strip is made of flexible waste tires, which is energy-saving, environmentally friendly, and waste utilization.

[0036] 5. The present invention provides a flower trough in which green plants are planted, which can improve the ecological properties. Combined with the arc shape of the arc-shaped wave-breaking wall, the landscape effect of the embankment can be enhanced. In addition, the bottom of the flower trough is supported by a top support frame, and the installation of the top support frame utilizes tension screws, which makes full use of the original structure, simplifies the installation process, and improves the construction speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0038] Figure 1 It is a cross-sectional view of a dam and a wave-breaking wall structure in the prior art.

[0039] Figure 2 It is a structural cross-sectional view when constructing the first phase of concrete.

[0040] Figure 3 It is a schematic diagram of the structure when the second formwork group is erected.

[0041] Figure 4 It is a schematic diagram of the split structure of the connection relationship between the inner template and the arc template.

[0042] Figure 5 It is a partial left view of the inner formwork.

[0043] Figure 6 This is a cross-sectional view of the structure after pouring the second phase of concrete.

[0044] Figure 7 It is a schematic diagram of the structure after the second template group is removed.

[0045] Figure 8 It is a schematic diagram of the structure after the pressure top is installed.

[0046] Fig. 9 yes Figure 8 Schematic diagram of the structure of the middle C area.

[0047] Fig.10 yes Figure 8 Left view of the center diverter strip.

[0048] Fig.11 It is a schematic diagram of the structure after the flower trough is installed.

[0049] Fig.12 yes Fig.11 Structural cross-section view of the middle support top frame.

[0050] Fig.13 yes Fig.11 Schematic diagram of the enlarged structure of the D region in the middle.

[0051] Description of reference numerals:

[0052] 1. Original wave-breaking wall; a1. First-phase concrete; a2. Second-phase concrete; 101. First vertical reinforcement; 102. First steel cage; 103. Second vertical reinforcement; 104. Second steel cage; 2. Levee; 3. Tripod; 4. Expansion bolt; 5. First formwork group; 6. Tension screw; 7. Nut; 8. Support frame; 9. Pad; 10. External formwork; 11. Internal formwork; 111. Positioning hole; 112. Hand hole; 12. Curved formwork; 13. Add Fixed bracket; 131, fixing nut; 132, movable nut; 14, threaded rod; 15, diagonal brace; 16, first sleeve; 17, top pressing; 1701, countersunk hole; 171, hook; 172, second sleeve; 173, fastening bolt; 18, diverter strip; 19, flower trough; 20, top support frame; 21, green plant; 201, vertical pole; 202, horizontal bar; 203, side guard; 204, reinforcing rib; 2011, waist hole; 22, locking bolt. DETAILED DESCRIPTION

[0053] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 without creative work are within the scope of protection of the present invention.

[0054] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0055] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0056] Embodiment 1:

[0057] like Figure 1 - Figure 7 As shown, this embodiment proposes a construction method for upgrading and renovating an existing embankment dam top wave-breaking wall, including the following steps:

[0058] S1, foundation treatment: the top of the original wave-breaking wall 1 located on the dam 2 is cleaned and roughened; after the wall top is treated, there is no milk skin or rough surface, and it is clean without stagnant water or accumulated residue.

[0059] S2, building the concrete foundation, which mainly includes the following processes:

[0060] S21, drilling a hole at the top of the original wave-breaking wall 1 and installing the first vertical reinforcement 101; the first vertical reinforcement 101 is processed in advance in the steel bar shed, and a drilling machine is used to drill a hole at the top of the original wave-breaking wall 1 according to the designed position, and then the first vertical reinforcement 101 is inserted into the drilled hole.

[0061] S22, a first template group 5 is set up on both sides of the original wave-breaking wall 1 to form a first pouring space, wherein:

[0062] The first formwork group 5 includes two groups of vertical formworks, which are connected by tension screws 6, and nuts 7 are screwed on both ends of the tension screws 6; the vertical formworks are fixedly connected by tensioning. In this embodiment, in order to facilitate the support of the vertical formworks, the following method is adopted: the specific construction method of supporting the first formwork group 5 in S22 is: drilling holes on both sides of the original wave-breaking wall 1, installing expansion bolts 4, connecting the tripod 3 with the expansion bolts 4, and forming an installation foundation for supporting the first formwork group 5; the tripod 3 is a triangular structure and can be made by angle iron welding; then the vertical formwork in the first formwork group 5 is erected on the top of the corresponding tripod 3, and the two groups of vertical formworks are locked and connected by tension screws 6 and nuts 7.

[0063] S23, install the first steel cage 102 in the first pouring space, and the first steel cage 102 is fixedly connected to the first vertical reinforcement 101; the first steel cage 102 is tied in advance, and after being transported to the construction site, the first steel cage 102 is placed in place, and the first steel cage 102 and the first vertical reinforcement 101 are fixed by tying or welding.

[0064] S24, pouring concrete into the first pouring space to form the first-stage concrete a1, and pre-embedding the second vertical reinforcement 103 in the first-stage concrete a1, which serves as the concrete foundation; when pouring the first-stage concrete a1, inserting the bottom end of the second vertical reinforcement 103 into the top of the first-stage concrete a1 to form a joint reinforcement.

[0065] S25, after the curing of the first-stage concrete a1 is completed, the vertical formwork in the first formwork group 5 is removed, and the tripod 3 is also removed together; it should be noted that when removing the vertical formwork, the tension screw 6 and the nut 7 should be retained; because the tension screw 6 is buried in the first-stage concrete a1, the two ends of the tension screw 6 extend out of the first-stage concrete a1, and the two ends of the tension screw 6 can be used to form an installation base point, which is explained in detail below.

[0066] S3, build a curved wave-breaking wall:

[0067] S31, install several support brackets 8: the two ends of each tension screw 6 are bolted to the support brackets 8 respectively, and a pad 9 is laid on the support brackets 8 to form a base surface for installing the second formwork group; in this embodiment, the support bracket 8 is also a triangular structure, which is a commonly used triangular bracket. The support bracket 8 has a screw hole, and the end of the tension screw 6 is inserted into the screw hole and then a high-strength nut is screwed to achieve a fastened connection.

[0068] S32, install the second steel cage 104 on the top of the concrete foundation, the bottom end of the second steel cage 104 is connected to the second vertical reinforcement 103, and the top of the second steel cage 104 is fixedly connected with the first sleeve 16; the second steel cage 104 is an arc structure, and the second steel cage 104 is made in the steel processing shed, and the first sleeve 16 is welded to the top of the second steel cage 104 in advance; during on-site construction, the second steel cage 104 and the second vertical reinforcement 103 are fixed by binding or welding.

[0069] S33, install the second formwork group above the foundation surface, and form a second pouring space with an arc-shaped recess above the concrete foundation; pour concrete in the second pouring space to form a second-phase concrete a2, which is a curved wave-breaking wall; it should be noted that: the specific steps of installing the second formwork group in S33 are: the second formwork group includes an inner formwork 11, an arc-shaped formwork 12 and an outer formwork 10, the inner formwork 11 is connected to the arc-shaped formwork 12 to form an inner formwork 11 assembly; the arc-shaped formwork 12 is used to construct an arc-shaped recess; the inner formwork 11 assembly and the outer formwork 10 are respectively set on both sides of the concrete foundation, and the bottom ends of the inner formwork 11 assembly and the outer formwork 10 are pressed on the pad 9, and the outer walls of the inner formwork 11 and the outer formwork 10 are connected with diagonal braces 15, and the diagonal braces 15 are supported on the pad 9, and the area between the inner formwork 11 assembly and the outer formwork 10 constitutes the second pouring space.

[0070] In addition, in this embodiment, the connection between the inner template 11 and the arc template 12 can be welding or a detachable connection. In this case, a detachable connection is preferred, so that the size of the arc can be selected according to actual conditions. A reinforcement bracket 13 is fixedly welded to the side wall of one side of the arc template 12, and a positioning hole 111 and a hand hole 112 are provided on the side wall of the inner template 11, wherein a fixing nut 131 is fixedly welded to the reinforcement bracket 13, and a threaded rod 14 is passed through the positioning hole 111, and one end of the threaded rod 14 is threadedly connected to the fixing nut 131; the other end of the threaded rod 14 is threadedly connected to a movable nut 132, and by screwing the movable nut 132, the arc template 12 can be tightened and fixed, so as to achieve a tight connection between the arc template 12 and the inner template 11. The hand hole 112 is provided for easy operation, and workers can reach into the hand hole 112 for easy screwing.

[0071] S34, after the curing of the second phase concrete a2 is completed, the second formwork group and the supporting frame 8 are removed to obtain a curved wave-breaking wall, which together with the concrete foundation constitutes a heightened section of the original wave-breaking wall 1.

[0072] Invention concept:

[0073] The introduction of the curved wave-breaking wall changes the direction of wave movement through the arc, converting part of the wave's kinetic energy into potential energy, and changing the direction of the wave movement so that it can be guided back to the open sea through the top of the arc. The concrete foundation constructed at the bottom mainly uses its height. After the wave hits the wave-breaking wall, it is broken and reflected to eliminate the wave. The two, one soft and one hard, together form a wave-breaking system. The construction of the concrete foundation is also to facilitate the construction of the curved wave-breaking wall and lay the foundation for the subsequent convenient construction.

[0074] Working principle and application results:

[0075] First, by upgrading and transforming the original upright wave-breaking wall 1, a curved wave-breaking wall with an arc-shaped notch on the top is obtained. The main feature of the curved wave-breaking wall is that the water-facing surface is a deep arc. The waves climb along the arc, and the anti-pickup guide section formed by the pressure top 17 guides the waves back. The movement direction of the waves when leaving the wave-breaking wall is the inside of the embankment, and the angle with the horizontal plane is close to 0°. Under the same working conditions, the waves of the upright wave-breaking wall obliquely impact the wave-breaking wall, resulting in wave reflection and breaking. The movement direction of the waves after reflection is obliquely upward, and there is a certain angle with the horizontal plane. Therefore, under the same conditions, the curved wave-breaking wall has a smaller overtopping amount than the upright wave-breaking wall. Similarly, under the same overtopping amount, the upright wave-breaking wall has a higher wall top elevation than the curved wave-breaking wall.

[0076] In summary: the energy of waves is reduced through the arc-shaped effect of the arc-shaped wave-breaking wall, which has a good energy dissipation effect. The wave-breaking wall has obvious wave-breaking advantages.

[0077] In addition, through the relevant data of physical model tests on the cross-sections of actual projects, it can be seen that under the condition of the same wave-breaking wall height, the use of curved wave-breaking walls on embankments can generally reduce the embankment top elevation by 20 to 50 cm compared with upright wave-breaking walls, and as the overtopping amount decreases, the wave-breaking advantage of the curved wave-breaking walls becomes more obvious. The use of curved wave-breaking walls on embankments designed to allow partial overtopping can reduce the embankment top elevation by 20 to 30 cm compared with upright embankments; the use of curved wave-breaking walls on embankments designed not to allow overtopping can reduce the embankment top elevation by 30 to 50 cm. The advantages of curved wave-breaking walls are mainly reflected in their reduction of embankment top elevation and beautification of appearance. According to the previous discussion, the use of curved wave-breaking walls can reduce the embankment top elevation by 20 to 50 cm compared with upright wave-breaking walls under the same conditions, which correspondingly reduces the earthwork and foundation settlement of the embankment body and increases the stability of the embankment body. At the same time, the curved wave-breaking wall has a beautiful appearance and can enhance the landscape effect of the embankment.

[0078] The construction process of first constructing a concrete foundation and then constructing a curved wave-breaking wall has two advantages. First, the use of segmented prefabrication reduces the construction difficulty of constructing the curved recess and the difficulty of installing the template, making it easier for workers to construct. Second, the concrete foundation constructed first can provide a working base for the subsequent construction of the curved wave-breaking wall. The tension screws 6 left when constructing the concrete foundation can be used to provide installation points for subsequent construction procedures. In conjunction with the support bracket 8, an installation base can be provided for the second template assembly to form an overhead support, thereby reducing the height of the template and making it easier for workers to operate the template.

[0079] Embodiment 2:

[0080] Continue to refer to the attached Figure 8 - Attachment Fig.10 On the basis of the first embodiment, in order to better guide the wave return, the entire construction process also includes S4, installing the capping 17: wherein the capping 17 is a prefabricated concrete structure, the capping 17 has a countersunk hole 1701 matching the first sleeve 16, the capping 17 is pressed on the top of the arc-shaped wave-breaking wall, and a fastening bolt 173 is passed through the countersunk hole 1701, and the bottom end of the fastening bolt 173 is threadedly connected to the first sleeve 16; the connection between the capping 17 and the arc-shaped wave-breaking wall is achieved by the fastening bolt 173.

[0081] The top pressure 17 cooperates with the arc-shaped wave-breaking wall to form an anti-cantilever guide section, which can effectively guide the wave return and realize energy dissipation; the top pressure 17 adopts a prefabricated process and an assembled method is used during construction, which effectively reduces the construction time and realizes rapid installation.

[0082] Embodiment three:

[0083] Reference Figure 8 - Fig. 9 On the basis of the second embodiment, the whole process further includes S5, installing the diverter strip 18: a hook 171 is also pre-buried at the bottom of the pressure top 17; a diverter strip 18 is connected between the hook 171 and the tension screw 6, and the diverter strip 18 is arranged in a vertical strip shape. In this embodiment, the diverter strip 18 is made of waste tires. The diverter strip 18 is arranged vertically, which can divert the waves, reduce the impact force, and play a good energy dissipation role. In addition, the diverter strip 18 is made of flexible waste tires, which is energy-saving and environmentally friendly, and waste is utilized.

[0084] Embodiment 4:

[0085] Reference Fig.11 - Fig.13On the basis of the third embodiment, the whole construction process further includes S6, installing the flower trough 19, wherein the flower trough 19 is a U-shaped structure, the side wall of the top 17 is pre-buried with a second sleeve 172 with an internal thread, the side wall of the flower trough 19 is penetrated by a locking bolt 22, and the locking bolt 22 is threadedly connected with the second sleeve 172 to realize the hanging of the flower trough 19; the flower trough 19 is filled with planting soil, and green plants 21 are planted in the planting soil.

[0086] The bottom of the flower trough 19 also supports a supporting frame 20, the bottom of the supporting frame 20 is bolted to the tension screw 6, and the top of the supporting frame 20 is supported on the bottom of the flower trough 19 to improve the stability of the installation of the flower trough 19.

[0087] The supporting frame 20 may have the following structure:

[0088] The top support frame 20 includes a vertical pole 201, the top of which is fixedly connected to a horizontal pole 202, and a reinforcing rib 204 is fixedly connected between the horizontal pole 202 and the vertical pole 201 to form a triangular structure; one end of the horizontal pole 202 is also fixedly connected to a retaining edge 203 for retaining at the side wall of the flower groove 19 to achieve positioning; a waist hole 2011 is provided near the bottom of the vertical pole 201, and one end of the tension screw 6 freely passes through the waist hole 2011.

[0089] The top support frame 20 can be made of discarded angle irons, which is low in cost. The overall structure is a triangular structure with stable support.

[0090] Application effect: By setting the flower trough 19 and planting green plants 21 in the flower trough 19, the ecological property can be improved, and the landscape effect of the embankment can be enhanced by combining with the arc shape of the arc-shaped wave-breaking wall. In addition, the bottom of the flower trough 19 is supported by a support frame 20, and the installation of the support frame 20 utilizes the tension screw rod 6, which makes full use of the original structure, simplifies the installation process, and improves the construction speed.

[0091] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A construction method for upgrading and renovating the wave-breaking wall on the top of an existing embankment, characterized in that: The steps include: S1, foundation treatment: cleaning and roughening the top of the original wave-breaking wall (1); S2, build concrete foundation: S21, drilling a hole at the top of the original wave-breaking wall (1) and installing a first vertical reinforcement (101); S22, erecting a first template group (5) on both sides of the original wave-breaking wall (1) to form a first pouring space, wherein: The first template group (5) comprises two sets of vertical templates, the two sets of vertical templates are connected by a tension screw (6), and nuts (7) are screwed on both ends of the tension screw (6); S23, installing a first steel cage (102) in the first casting space, wherein the first steel cage (102) is fixedly connected to the first vertical reinforcement (101); S24, pouring concrete into the first pouring space to form a first-stage concrete (a1), and pre-embedding a second vertical reinforcement (103) in the first-stage concrete (a1), the first-stage concrete (a1) serving as a concrete foundation; S25, after the curing of the first stage concrete (a1) is completed, the vertical formwork in the first formwork group (5) is removed, and the tension screws (6) and nuts (7) are retained; S3, build a curved wave-breaking wall: S31, installing a plurality of support brackets (8): each of the two ends of the tension screw (6) is bolted to the support brackets (8), and a pad (9) is laid on the support brackets (8) to form a base surface for installing the second template group; S32, installing a second steel cage (104) on the top of the concrete foundation, wherein the bottom end of the second steel cage (104) is connected to the second vertical reinforcement (103), and the top end of the second steel cage (104) is fixedly connected to the first sleeve (16); S33, installing a second formwork group above the foundation surface to form a second pouring space with an arc-shaped recess above the concrete foundation; pouring concrete in the second pouring space to form a second-stage concrete (a2), wherein the second-stage concrete (a2) is a curved wave-breaking wall; S34, after the curing of the second phase concrete (a2) is completed, the second formwork group and the supporting frame (8) are removed to obtain a curved wave-breaking wall, which together with the concrete foundation constitutes a heightened section of the original wave-breaking wall (1); S4, installing the pressure top (17): the pressure top (17) is a prefabricated concrete structure, the pressure top (17) has a countersunk hole (1701) matching the first sleeve (16), the pressure top (17) is pressed on the top of the arc-shaped wave-breaking wall, a fastening bolt (173) is inserted into the countersunk hole (1701), and the bottom end of the fastening bolt (173) is threadedly connected to the first sleeve (16); the pressure top (17) is connected to the arc-shaped wave-breaking wall by the fastening bolt (173); S5, installing the diverter strip (18): a hook (171) is also pre-buried at the bottom of the pressure top (17); a diverter strip (18) is connected between the hook (171) and the tension screw rod (6), and the diverter strip (18) is arranged in a vertical strip shape; S6, installing a flower trough (19), wherein the flower trough (19) is a U-shaped structure, a second sleeve (172) with an internal thread is pre-buried in the side wall of the pressure top (17), a locking bolt (22) is passed through the side wall of the flower trough (19), and the locking bolt (22) is threadedly connected to the second sleeve (172) to achieve hanging of the flower trough (19); the flower trough (19) is filled with planting soil, and green plants (21) are planted in the planting soil; The bottom of the flower trough (19) is also supported by a supporting frame (20), the bottom of the supporting frame (20) is bolted to the tension screw (6), and the top of the supporting frame (20) is supported on the bottom of the flower trough (19); The top support frame (20) comprises a vertical pole (201), the top of the vertical pole (201) is fixedly connected to a horizontal pole (202), and a reinforcing rib (204) is fixedly connected between the horizontal pole (202) and the vertical pole (201), so as to form a triangular structure; one end of the horizontal pole (202) is also fixedly connected to a retaining edge (203) for retaining at the side wall of the flower groove (19) to achieve position limiting; a waist hole (211) is provided near the bottom of the vertical pole (201), and one end of the tension screw rod (6) freely passes through the waist hole (211).

2. The construction method for upgrading and reconstructing the wave-breaking wall on the top of an existing embankment according to claim 1 is characterized in that: The specific construction method for supporting the first formwork group (5) in S22 is: drilling holes on both sides of the original wave-breaking wall (1), installing expansion bolts (4), connecting the tripod (3) with the expansion bolts (4), and forming an installation foundation for supporting the first formwork group (5); then erecting the vertical formwork in the first formwork group (5) on the top of the corresponding tripod (3), and locking the two sets of vertical formworks through tension screws (6) and nuts (7).

3. The construction method for upgrading and reconstructing the wave-breaking wall on the top of an existing embankment according to claim 1 is characterized in that: The specific steps of installing the second formwork group in S33 are as follows: the second formwork group includes an inner formwork (11), an arc-shaped formwork (12) and an outer formwork (10); the inner formwork (11) is connected to the arc-shaped formwork (12) to form an inner formwork (11) assembly; the arc-shaped formwork (12) is used to construct an arc-shaped recess; the inner formwork (11) assembly and the outer formwork (10) are respectively erected on both sides of the concrete foundation, the bottom ends of the inner formwork (11) assembly and the outer formwork (10) are pressed on the pad (9), the outer walls of the inner formwork (11) and the outer formwork (10) are connected with diagonal braces (15), and the diagonal braces (15) are supported on the pad (9); the area between the inner formwork (11) assembly and the outer formwork (10) constitutes a second casting space.

4. The construction method for upgrading and reconstructing the wave-breaking wall on the top of an existing embankment according to claim 1 is characterized in that: The diverter strip (18) is made of waste tires.

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