Modular recycled concrete river bank retaining wall and manufacturing method thereof

Abstract

The invention discloses a modular regenerated concrete river bank retaining wall and a manufacturing method thereof, wherein the retaining wall comprises a base, a precast pile and a retaining wall; the base is arranged at the upper end of the precast pile, and the retaining wall is arranged at the top of the base; the retaining wall is mainly composed of a splicing wall body and concrete slabs connected to both sides of the splicing wall body, the first and last ends of the splicing wall body are first splicing modules, the first splicing modules on both sides are respectively connected to the concrete slabs on both sides, and the middle section between the first splicing modules on both sides is spliced ​​by a plurality of second splicing modules; the first splicing module and the second splicing module are both provided with a plurality of pipes for drainage, and the junction between the first splicing module and the second splicing module is fixed by self-compacting concrete. The invention can not only improve the firmness of the connection between the splicing modules, but also effectively improve the drainage capacity of the retaining wall, which is conducive to the discharge of water in the fill, and is suitable for further promotion and application.

Description

Technical Field

[0001] The present invention relates to the technical field of river protection construction, and in particular to a modular recycled concrete river bank retaining wall and a manufacturing method thereof. Background Art

[0002] Assembly technology refers to a construction method that changes part or all of the structure from being cast on site to being prefabricated in a prefabrication plant and then transported to the construction site for assembly. The construction industry, transportation industry, and municipal industry have been carrying out assembly construction in full swing in recent years. In recent years, my country's water conservancy and water transportation industries have begun to use assembly technology to solve problems around rivers. The management of small and medium-sized rivers and mountain torrents is one of the important tasks of flood control projects, and many river retaining wall projects will use assembled wall panels.

[0003] Most of the existing prefabricated retaining walls are connected by mechanical connections, which are not strong enough and have low structural stability. In addition, the drainage effect of the current river retaining walls is poor, which can easily cause surface water to flow into the fill during rainy days and cannot be drained out, thereby reducing the shear strength of the fill. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a modular recycled concrete river bank retaining wall and a manufacturing method thereof.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a modular recycled concrete river bank retaining wall, comprising a base, precast piles and a retaining wall; the base is arranged at the upper end of the precast piles, and the retaining wall is arranged on the top of the base;

[0006] The retaining wall is mainly composed of a spliced ​​wall body and concrete slabs connected to both sides of the spliced ​​wall body. The first and second ends of the spliced ​​wall body are first spliced ​​modules. The first spliced ​​modules on both sides are respectively connected to the concrete slabs on both sides. The middle section between the first spliced ​​modules on both sides is spliced ​​by a plurality of second spliced ​​modules.

[0007] The first splicing module and the second splicing module are both provided with a plurality of pipes for drainage, and the joint between the first splicing module and the second splicing module is fixed by self-compacting concrete;

[0008] The first splicing module includes a first stainless steel plate, a first stainless steel drainage pipe, a first T-shaped connector and a first recycled concrete layer;

[0009] A plurality of first stainless steel drain pipes are evenly arranged on the first stainless steel plate, and a first circular hole is opened in the middle of the first stainless steel plate. The first T-shaped connector is fixed on two adjacent sides of the first stainless steel plate, and first through holes are evenly opened on the first T-shaped connector.

[0010] The first recycled concrete layer is disposed on both the front and rear sides and the first circular hole in the middle of the first stainless steel plate. The first recycled concrete layers on the front and rear sides of the first stainless steel plate are symmetrical to each other and are arranged in a square shape. The size of the square first recycled concrete layer is smaller than that of the first stainless steel plate. The square first recycled concrete layer is higher than the plane of the first T-shaped connector in the thickness direction. The square first recycled concrete layer is flush with the end of the first stainless steel drain pipe, and the square first recycled concrete layer is arranged close to the adjacent first T-shaped connector.

[0011] The second splicing module includes a second stainless steel plate, a second stainless steel drainage pipe, a second T-shaped connector, and a second recycled concrete layer, wherein a plurality of second stainless steel drainage pipes are evenly arranged on the second stainless steel plate, and a second circular hole is opened in the middle of the second stainless steel plate, and second T-shaped connectors are fixed on three sides of the second stainless steel plate, and second through holes are evenly opened on the second T-shaped connector;

[0012] A second recycled concrete layer is arranged on the front and rear sides and in the second circular hole in the middle of the second stainless steel plate. The second recycled concrete layers on the front and rear sides of the second stainless steel plate are symmetrical with each other and are arranged in a square shape. The size of the square second recycled concrete layer is smaller than the size of the second stainless steel plate. The square second recycled concrete layer is higher than the plane of the second T-shaped connector in the thickness direction, and the square second recycled concrete layer is flush with the end of the second stainless steel drain pipe. The square second recycled concrete layer is arranged away from the side of the second stainless steel plate where the second T-shaped connector is not installed.

[0013] Furthermore, the retaining wall also includes a support, which is spaced apart at the lower end of the side wall of the retaining wall and has a bottom fixedly connected to the base.

[0014] Furthermore, a first stainless steel drain pipe is evenly disposed through the first stainless steel plate of the first splicing module that does not cover the first recycled concrete layer; and a second stainless steel drain pipe is evenly disposed through the second stainless steel plate of the second splicing module that does not cover the second recycled concrete layer.

[0015] Furthermore, the splicing wall is a two-layer splicing structure; the adjacent second splicing modules in the middle section of the splicing wall are spliced ​​by the second T-shaped connectors on the side walls, and the side of the upper second splicing module not installed with the second T-shaped connector is arranged upward, and the side of the lower second splicing module not installed with the second T-shaped connector is embedded in the base for fixation;

[0016] The first splicing modules at the two ends of the splicing wall are respectively spliced ​​with the adjacent first splicing modules and second splicing modules through two first T-shaped connectors on the sides; the first stainless steel plate at the bottom of the lower first splicing module that does not cover the first recycled concrete layer is embedded in the base for fixation; the first stainless steel plates at the sides of the upper and lower first splicing modules that do not cover the first recycled concrete layer are embedded in the concrete slab for fixation.

[0017] Furthermore, a casting groove is formed at the joint of adjacent splicing modules in the splicing wall, and a concrete circulation opening is formed in the middle of the splicing of the four adjacent splicing modules in the upper and lower layers. The casting groove, the concrete circulation opening, the first through hole and the second through hole are all filled with self-compacting concrete; and a concrete cap is provided on the top of the first splicing module and the second splicing module in the upper layer.

[0018] The present invention also provides a method for manufacturing a modular recycled concrete river bank retaining wall, comprising the following steps:

[0019] Survey the construction site beside the river, carry out partial excavation as needed, support the soft soil, and then drive the precast piles into the soil;

[0020] A steel bar structure of a concrete slab on one side and a base is built on the precast piles, wherein the steel bars in the concrete slab are embedded in the precast piles to form a lap connection of the steel bars;

[0021] The first splicing module and the second splicing module are spliced ​​according to the required length. When pouring the concrete slab and the base, the first stainless steel drain pipe on the side of the first stainless steel plate in the first splicing module that is not poured with recycled concrete is buried in the concrete slab and the base, and the second stainless steel drain pipe on the bottom of the second splicing module that is not poured with recycled concrete is buried in the base;

[0022] A concrete slab is cast on the other side of the spliced ​​wall, and the first stainless steel drainage pipe on the side of the first stainless steel plate in the first splicing module that is not cast with recycled concrete is buried in the concrete slab at that location, and the steel bars of the concrete slab are buried in the base to form a lap connection of the steel bars, and then concrete is cast;

[0023] A long steel baffle with a hollow triangular support at the bottom is placed at the longitudinal casting groove of the spliced ​​wall, and a steel baffle is placed at the transverse casting groove. There are gaps for accommodating concrete between the long steel baffle with a hollow triangular support at the bottom and the bottom of the casting groove, and between the steel baffle and the bottom of the casting groove;

[0024] A pouring port is formed at the upper end of a long steel baffle with a hollow triangular support at the bottom of the spliced ​​wall. Self-compacting concrete is poured into the joint of the spliced ​​wall through the pouring port. During pouring, any one of the pouring ports is used as a grouting port, and the other pouring ports are used as overflow ports. When concrete flows out of the overflow port, pouring is stopped.

[0025] After the maintenance is completed, the long steel baffle with the hollow triangular support at the bottom and the steel baffle are removed, and finally the upper part of the retaining wall is sealed with concrete.

[0026] Further, the first splicing module is cast by using a first mold, the first mold includes a first box body, an L-shaped fixing strip, a casting frame, a strip plate and a first hexagonal screw, a notch for avoiding the first T-shaped connector on the first splicing module is opened on the adjacent side walls of the first box body, an L-shaped fixing strip is fixed to the bottom of the inner cavity of the first box body, the two ends of the L-shaped fixing strip are respectively abutted against the two side walls of the first box body where the notch is set, and the height of the L-shaped fixing strip is the same as the height of the side wall of the first box body at the notch position; the casting frame is detachably connected to the first box body by the strip plate and the first hexagonal screw;

[0027] The manufacturing method of the first splicing module specifically comprises the following steps:

[0028] The first stainless steel plate is placed in the first box, and the first T-shaped connector on the side wall of the first stainless steel plate extends out from the notch on the side wall of the first box;

[0029] Next, the pouring frame is placed on the surface of the first stainless steel plate, and the two adjacent sides of the pouring frame are respectively butted against the two first T-shaped connectors on the side of the first stainless steel plate, and then the strip plate is covered, and the two ends of the strip plate are respectively fixed to the pouring frame and the first box body by two first hexagonal screws; one of the first hexagonal screws fixes the strip plate and the pouring frame, and the other first hexagonal screw fixes the strip plate and the first box body;

[0030] Then, the recycled concrete is poured into the pouring frame. The recycled concrete can flow into the L-shaped fixing strip through the first circular hole in the middle of the first stainless steel plate, fill the L-shaped fixing strips and the pouring frame on both sides of the first stainless steel plate, and form a first recycled concrete layer after the concrete solidifies.

[0031] After the concrete is cured, the mold is removed to obtain the first splicing module.

[0032] Furthermore, the second splicing module is cast using a second mold, and the second mold includes a second box body, a first strip-shaped abutting plate, a T-shaped fixing plate, a C-shaped frame, and second hexagonal screws. Notches for avoiding the second T-shaped connectors on the second splicing module are formed on three side walls of the second box body. A first strip-shaped abutting plate is fixed to the bottom of the inner cavity of the second box body, and the first strip-shaped abutting plate is located on the side of the second box body side wall without a notch. The T-shaped fixing plate is composed of a fixing plate and a second strip-shaped abutting plate fixed to the fixing plate. The fixing plate and the C-shaped frame are detachably connected to the second box body through second hexagonal screws;

[0033] The manufacturing method of the second splicing module specifically includes the following steps:

[0034] Place the second stainless steel plate in the second box body, and the second T-shaped connectors on the side wall of the second stainless steel plate extend out from the notches on the side wall of the second box body;

[0035] Then place the C-shaped frame on top of the second stainless steel plate, and make the open end of the C-shaped frame abut against the side wall at the notch of the second box body. Then, turn the second strip-shaped abutting plate towards the first strip-shaped abutting plate and cover the fixing plate on the second box body. At this time, the first strip-shaped abutting plate and the second strip-shaped abutting plate respectively abut against the front and rear side walls of the second stainless steel plate. Then, fix the fixing plate, the C-shaped frame, and the second box body into one body through two second hexagonal screws at both ends of the fixing plate respectively; one second hexagonal screw fixedly connects the fixing plate and the second box body, and the other second hexagonal screw fixedly connects the fixing plate and the C-shaped frame;

[0036] Then pour recycled concrete into the C-shaped frame. The recycled concrete can flow into the second box body through the second round holes in the middle of the second stainless steel plate. After the concrete solidifies, a second recycled concrete layer is formed;

[0037] After the concrete is cured, the mold is removed to obtain the second splicing module.

[0038] The beneficial effects of the present invention are as follows:

[0039] The present invention adopts modular production and processing of retaining wall splicing modules, splitting the precast retaining wall into small modules, which is convenient for the transportation and on-site assembly of the precast retaining wall, effectively avoiding the cracking and damage of the shear wall during transportation and hoisting, and being able to ensure the seismic performance and stability of the structure. In addition, in the present invention, through the combination of stainless steel components and recycled concrete, not only can the mechanical properties of recycled concrete be improved, but also the recycling of construction waste can be realized. 2) The T-shaped connectors are used for splicing between the splicing modules of the present invention, and self-compacting concrete is injected to fix the connection points, double-reinforcing to improve the integrity and safety of the structure; in addition, by uniformly arranging stainless steel drain pipes on the splicing modules in the present invention, the drainage capacity of the retaining wall can be effectively improved, which is beneficial to the discharge of water in the fill soil.

[0040] 3) The "connected grouting" method designed in the present invention only needs to pour the self-compacting concrete from the grouting port and stop after the grouting flows out of the overflow port. It can effectively judge whether the connection of the retaining wall is filled with self-compacting concrete, thereby improving the construction efficiency of pouring. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a structural schematic diagram of a spliced ​​wall in the present invention;

[0043] Figure 3 Schematic diagram of placing steel baffles and long steel baffles in the grooves for splicing wall casting;

[0044] Figure 4 is a structural schematic diagram of a first splicing module;

[0045] Figure 5 is a structural schematic diagram of the first splicing module (excluding the first recycled concrete layer);

[0046] Figure 6 is a structural schematic diagram of a second splicing module;

[0047] Figure 7 is a structural schematic diagram of the second splicing module (excluding the second recycled concrete layer);

[0048] Figure 8 is a structural schematic diagram of a first mold;

[0049] Fig. 9 is a schematic structural diagram of a second mold;

[0050] Fig.10 is a schematic diagram of the production process of the first splicing module;

[0051] Fig.11 is a schematic diagram of the production process of the second splicing module;

[0052] Fig.12 It is a structural schematic diagram of a long steel baffle;

[0053] Fig.13 This is a cross-sectional view of a long steel baffle.

[0054] The designations in the accompanying drawings are as follows:

[0055] Base - 1; precast pile - 2; first splicing module - 3; second splicing module - 4; concrete slab - 5; self - compacting concrete - 6; pouring groove - 7; steel baffle - 8; concrete circulation opening - 9; concrete capping - 10; support - 11; pouring port - 12; first mold - 13; second mold - 14; long steel baffle - 15; first stainless steel plate - 31; first stainless steel drain pipe - 32; first T - shaped connector - 33; first recycled concrete layer - 34; first round hole - 311; first through - hole - 331; second stainless steel plate - 41; second stainless steel drain pipe - 42; second T - shaped connector - 43; second recycled concrete layer - 44; second round hole - 411; second through - hole - 431; first box body - 131; L - shaped fixing strip - 132; pouring frame - 133; strip plate - 134; first hexagonal screw - 135; second box body - 141; first strip abutting plate - 142; fixing plate - 143; second strip abutting plate - 144; U - shaped frame - 145; second hexagonal screw - 146. Detailed implementation mode

[0056] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0057] Refer to the attached Figure 1-2 As shown, this embodiment provides a modular recycled concrete riverbank retaining wall, including a base 1, a precast pile 2 and a retaining wall; the base 1 is arranged at the upper end of the precast pile 2, and the retaining wall is arranged on the top of the base 1;

[0058] The retaining wall is mainly composed of a spliced wall body and concrete slabs 5 connected to both sides of the spliced wall body. The head and tail ends of the spliced wall body are the first splicing modules 3, and the two first splicing modules 3 on both sides are respectively connected to the two concrete slabs 5 on both sides. The middle section between the two first splicing modules 3 is spliced by a number of second splicing modules 4;

[0059] A number of pipes for drainage are arranged on both the first splicing module 3 and the second splicing module 4. By evenly arranging the pipes for drainage on the splicing module, the drainage capacity of the retaining wall can be effectively improved, which is conducive to the discharge of water in the fill. The connection between the first splicing module 3 and the second splicing module 4 is further fixed by self - compacting concrete 6. The splicing module combines mechanical connection and fixed connection with self - compacting concrete, and double reinforcement improves the integrity and safety of the structure.

[0060] In this embodiment, the retaining wall further includes a support 11, which is arranged at intervals at the lower end of the side wall of the retaining wall, and the bottom of the support 11 is fixedly connected to the base 1. The arrangement of the support 11 can improve the stability of the retaining wall and prevent the retaining wall from collapsing.

[0061] Refer to the attached Figure 4 and 5 As shown, the first splicing module 3 includes a first stainless steel plate 31, a first stainless steel drainage pipe 32, a first T-shaped connector 33 and a first recycled concrete layer 34;

[0062] A number of first stainless steel drain pipes 32 are evenly arranged on the first stainless steel plate 31, and a first circular hole 311 is opened in the middle of the first stainless steel plate 31. When the first splicing module 3 is produced, the poured recycled concrete can flow to the other side of the first stainless steel plate 31 through the first circular hole 311, and at the same time, the first recycled concrete layers 34 on both sides can also be connected together through the concrete in the first circular hole 311, effectively preventing the concrete on both sides of the first stainless steel plate 31 from falling off. The first T-shaped connector 33 is fixed on the adjacent two sides of the first stainless steel plate 31. When the first splicing module 3 is spliced, it is spliced ​​with other splicing modules through the first T-shaped connector 33. The first through holes 331 are evenly opened on the first T-shaped connector 33; when the self-compacting concrete 6 is poured, the self-compacting concrete 6 will also be filled into the hole. The setting of the first through hole 331 is not only conducive to the self-compacting concrete 6 to fully fill the pouring groove 7, but also makes the splicing module connection more firm.

[0063] The first recycled concrete layer 34 is arranged on both the front and rear sides of the first stainless steel plate 31 and in the first circular hole 311 in the middle. The first recycled concrete layers 34 on the front and rear sides of the first stainless steel plate 31 are symmetrical and arranged in a square shape. The size of the square first recycled concrete layer 34 is smaller than that of the first stainless steel plate 31. The square first recycled concrete layer 34 is higher than the plane of the first T-shaped connector 33 in the thickness direction to form a stepped platform. This arrangement makes the first splicing module 3 lower at the splicing point after splicing, thereby forming a groove that can be filled with self-compacting concrete. The square first recycled concrete layer 34 is flush with the end of the first stainless steel drain pipe 32. The first stainless steel drain pipe 32 is arranged on the retaining wall to form a drainage pipe, which effectively improves the drainage effect of the retaining wall. And the square first recycled concrete layer 34 is arranged close to the adjacent first T-shaped connector 33, that is, the square first recycled concrete layer 34 on the front and rear sides of the first stainless steel plate 31 is biased towards the first T-shaped connector 33 adjacent to the first stainless steel plate 31.

[0064] Refer to the attached Figure 6 and 7As shown in the figure, the second splicing module 4 includes a second stainless steel plate 41, a second stainless steel drain pipe 42, a second T-shaped connector 43, and a second recycled concrete layer 44. A number of second stainless steel drain pipes 42 are uniformly and penetratingly arranged on the second stainless steel plate 41, and a second round hole 411 is formed in the middle of the second stainless steel plate 41. When the second splicing module 4 is produced, the poured recycled concrete can flow to the other side of the second stainless steel plate 41 through the second round hole 411. At the same time, the second recycled concrete layers 44 on both sides can also be connected together through the concrete in the second round hole 411, effectively preventing the concrete on both sides of the second stainless steel plate 41 from falling off. Second T-shaped connectors 43 are fixed on three side edges of the second stainless steel plate 41, and second through holes 431 are uniformly formed in the second T-shaped connectors 43. When the self-compacting concrete 6 is poured, the self-compacting concrete 6 will also fill into these holes. The setting of the second through holes 431 not only facilitates the full filling of the pouring groove 7 by the self-compacting concrete 6, but also makes the connection of the splicing modules more firm.

[0065] Second recycled concrete layers 44 are arranged on the front and back sides and in the middle second round hole 411 of the second stainless steel plate 41. The second recycled concrete layers 44 on the front and back sides of the second stainless steel plate 41 are symmetrical to each other and are arranged in a square shape. The size of the square second recycled concrete layer 44 is smaller than the size of the second stainless steel plate 41. The square second recycled concrete layer 44 is higher than the plane of the second T-shaped connector 43 in the thickness direction to form a stepped platform. This setting makes the splicing part lower after the second splicing module 4 is spliced, and thus a groove that can be filled with self-compacting concrete is formed. The square second recycled concrete layer 44 is flush with the end of the second stainless steel drain pipe 42. The second stainless steel drain pipe 42 is arranged to form a drainage pipe on the retaining wall, effectively improving the drainage effect of the retaining wall. The square second recycled concrete layer 44 is arranged on the side away from the second stainless steel plate 41 where the second T-shaped connector 43 is not installed, that is, the square second recycled concrete layer 44 is located in the U-shaped structure formed by the three second T-shaped connectors 43.

[0066] The above-mentioned first stainless steel plate 31 and second stainless steel plate 41 are combined by stainless steel components and recycled concrete, which not only improves the mechanical properties of recycled concrete, but also realizes the recycling of construction waste.

[0067] In this embodiment, both the first stainless steel drain pipe 32 and the second stainless steel drain pipe 42 are in the shape of being small in the middle and large at both ends. This setting is similar to a rivet and can stably fix the recycled concrete layer on the stainless steel plate.

[0068] Refer to the appendix Figure 4 And 6As shown, in this embodiment, the first stainless steel plate 31 of the first splicing module 3 that does not cover the first recycled concrete layer 34 is evenly penetrated with the first stainless steel drain pipe 32; the second stainless steel plate 41 of the second splicing module 4 that does not cover the second recycled concrete layer 44 is evenly penetrated with the second stainless steel drain pipe 42. During the splicing process of the retaining wall, the part of the splicing module that does not cover the recycled concrete layer needs to be moved into the base 1 and the concrete slab 5. The stainless steel drain pipe is provided at the part that does not cover the recycled concrete layer to improve the firmness of the connection between the splicing module and the base 1 and the concrete slab 5.

[0069] Refer to the attached Figure 1-2 As shown, the splicing wall is a two-layer splicing structure; the adjacent second splicing modules 4 in the middle section of the splicing wall are spliced ​​by the second T-shaped connecting pieces 43 on the side walls, and the sides of the upper second splicing modules 4 not installed with the second T-shaped connecting pieces 43 are arranged upward, and the sides of the lower second splicing modules 4 not installed with the second T-shaped connecting pieces 43 are embedded in the base 1 for fixation.

[0070] The first splicing modules 3 at both ends of the splicing wall are respectively spliced ​​with the adjacent first splicing modules 3 and second splicing modules 4 through two first T-shaped connectors 33 on the sides, and the first stainless steel plate 31 at the bottom of the lower first splicing module 3 that does not cover the first recycled concrete layer 34 is embedded in the base 1 for fixation, and the first stainless steel plates 31 at the sides of the upper and lower first splicing modules 3 that do not cover the first recycled concrete layer 34 are embedded in the concrete plate 5 for fixation.

[0071] Refer to the attached Figure 1-2 As shown, a casting groove 7 is formed at the joint of adjacent splicing modules in the splicing wall, and a concrete circulation opening 9 is formed in the middle of the splicing of the four adjacent splicing modules in the upper and lower layers, and the casting groove 7, the concrete circulation opening 9, the first through hole 331 and the second through hole 431 are all filled with self-compacting concrete 6. During pouring, the poured self-compacting concrete 6 will be filled in the casting groove 7; during the pouring process, the self-compacting concrete 6 can flow to the other side of the splicing module through the concrete circulation opening 9, which is conducive to the full filling of the self-compacting concrete 6. A concrete capping 10 is provided on the top of the first splicing module 3 and the second splicing module 4 of the upper layer. The surface of the concrete capping 10 is flush with the ends of the first stainless steel drain pipe 32 and the second stainless steel drain pipe 42, that is, the concrete capping 10 does not cover the ends of the first stainless steel drain pipe 32 and the second stainless steel drain pipe 42, so that the first stainless steel drain pipe 32 and the second stainless steel drain pipe 42 can drain normally.

[0072] Refer to the attached Figure 1-3 As shown, this embodiment also provides a method for manufacturing a modular recycled concrete river bank retaining wall, comprising the following steps:

[0073] The construction site beside the river channel is surveyed, and partial excavation is carried out as needed to ensure that the pile foundation construction conditions meet the design requirements, and the soft soil is supported. Then the precast piles 2 are driven into the soil to ensure that they meet the design requirements.

[0074] A concrete slab 5 on one side and a steel bar structure of the base 1 are built on the precast pile 2, wherein the steel bars in the concrete slab 5 are embedded in the precast pile 2 to form a lap connection of the steel bars; the steel bars of the concrete slab 5 extend into the lower base 1 to ensure a good connection.

[0075] The first splicing module 3 and the second splicing module 4 are spliced ​​together according to the required length using the T-shaped connector on the splicing module. The first splicing module 3 is used at both ends, and the second splicing module 4 is used for splicing in the middle section.

[0076] When pouring the concrete slab 5 and the base 1, the first stainless steel drain pipe 32 on the side of the first stainless steel plate 31 in the first splicing module 3 that is not poured with recycled concrete is buried in the concrete slab 5 and the base 1, and the second stainless steel drain pipe 42 on the bottom of the second splicing module 4 that is not poured with recycled concrete is buried in the base 1;

[0077] A concrete slab 5 is cast on the other side of the spliced ​​wall, and the first stainless steel drain pipe 32 on the side of the first stainless steel plate 31 in the first splicing module 3 that is not cast with recycled concrete is buried in the concrete slab 5 at that location, and the steel bars of the concrete slab 5 are buried in the base 1 to form a lap connection of the steel bars, and then the concrete is cast. When the concrete slabs 5 on both sides are cast, the surface of the concrete slab 5 is flush with the end of the first stainless steel drain pipe 32, that is, the concrete slab 5 does not cover the end of the first stainless steel drain pipe 32, so that the first stainless steel drain pipe 32 can drain water normally.

[0078] Refer to the attached Figure 2-3 As shown, a long steel baffle 15 with a hollow triangular support at the bottom is placed at the longitudinal casting groove 7 of the spliced ​​wall (the long steel baffle 15 structure, such as Figure 12-13 As shown, a steel baffle 8 is placed at the horizontal casting groove 7, and there is a gap (i.e., a cavity) for accommodating concrete between the long steel baffle 15 with a hollow triangular support at the bottom and the bottom of the casting groove 7 and between the steel baffle 8 and the bottom of the casting groove 7;

[0079] The spliced ​​wall is formed at the upper end of the long steel baffle 15 with a hollow triangular support at the bottom to form a pouring port 12 (such as the attached Figure 3As shown in the figure, self-compacting concrete is poured into the joint of the spliced ​​wall through the pouring port 12 (self-compacting concrete has excellent fluidity and can fully fill gaps, holes, etc. without vibration). During pouring, any one of the pouring ports 12 is used as the grouting port, and the other pouring ports 12 are used as the overflow port; when concrete flows out of the overflow port, pouring is stopped. Concrete flowing out of the overflow port means that the pouring groove 7, concrete flow opening 9, first through hole 331 and second through hole 431 at the joint of the spliced ​​wall have been filled with self-compacting concrete 6. This method only needs to pour the self-compacting concrete from the grouting port and stop after it flows out of the overflow port. It can effectively judge whether the joint of the retaining wall is filled with self-compacting concrete, thereby improving the construction efficiency of pouring.

[0080] After the curing is completed, the long steel baffle 15 and the steel baffle 8 with the hollow triangular support at the bottom are removed, and finally the upper part of the retaining wall is sealed with ordinary concrete.

[0081] Refer to the attached Figure 8 and 10 As shown, the first splicing module 3 is cast by using the first mold 13, and the first mold 13 includes a first box body 131, an L-shaped fixing strip 132, a casting frame 133, a strip plate 134 and a first hexagonal screw 135. A notch for avoiding the first T-shaped connector 33 on the first splicing module 3 is opened on the adjacent side walls of the first box body 131, and an L-shaped fixing strip 132 is fixed to the bottom of the inner cavity of the first box body 131. The two ends of the L-shaped fixing strip 132 are respectively abutted against the two side walls of the first box body 131 where the notch is set, and the height of the L-shaped fixing strip 132 is the same as the height of the side wall of the notch position of the first box body 131; the casting frame 133 is detachably connected to the first box body 131 through the strip plate 134 and the first hexagonal screw 135;

[0082] The method for making the first splicing module 3 specifically includes the following steps:

[0083] The first stainless steel plate 31 is placed in the first box body 131 , and the first T-shaped connector 33 on the side wall of the first stainless steel plate 31 extends out from the notch on the side wall of the first box body 131 ;

[0084] Next, the pouring frame 133 is placed on the surface of the first stainless steel plate 31, and the two adjacent sides of the pouring frame 133 are respectively abutted against the two first T-shaped connectors 33 on the side of the first stainless steel plate 31, and then the strip plate 134 is covered, and the two ends of the strip plate 134 are respectively fixed to the pouring frame 133 and the first box body 131 by two first hexagonal screws 135; one of the first hexagonal screws 135 is used to fix the strip plate 134 and the pouring frame 133, and the other first hexagonal screw 135 is used to fix the strip plate 134 and the first box body 131;

[0085] Next, recycled concrete is poured into the pouring frame 133. The recycled concrete can flow into the L-shaped fixing strip 132 through the first round hole 311 in the middle of the first stainless steel plate 31, filling the L-shaped fixing strips 132 on both sides of the first stainless steel plate 31 and the pouring frame 133. After the concrete solidifies, a first recycled concrete layer 34 is formed. After the concrete is cured, the mold is removed to obtain the first splicing module 3.

[0086] Refer to the appendix Fig. 9 And 11 As shown, the second splicing module 4 is formed by pouring with the second mold 14. The second mold 14 includes a second box body 141, a first strip-shaped abutting plate 142, a T-shaped fixing plate, a U-shaped frame 145 and a second hexagonal screw 146. Notches for avoiding the second T-shaped connectors 43 on the second splicing module 4 are formed on three side walls of the second box body 141. A first strip-shaped abutting plate 142 is fixed to the bottom of the inner cavity of the second box body 141. The first strip-shaped abutting plate 142 is located on the side close to the side wall of the second box body 141 without a notch. The T-shaped fixing plate is composed of a fixing plate 143 and a second strip-shaped abutting plate 144 fixed on the fixing plate 143. The fixing plate 143 and the U-shaped frame 145 are detachably connected to the second box body 141 through the second hexagonal screw 146.

[0087] The manufacturing method of the second splicing module 4 specifically includes the following steps:

[0088] Place the second stainless steel plate 41 in the second box body 141, and the second T-shaped connectors 43 on the side wall of the second stainless steel plate 41 extend out from the notches on the side wall of the second box body 141.

[0089] Then place the U-shaped frame 145 on the top of the second stainless steel plate 41, and make the open end of the U-shaped frame 145 abut against the side wall at the notch of the second box body 141. Then turn the second strip-shaped abutting plate 144 towards the first strip-shaped abutting plate 142 and cover the fixing plate 143 on the second box body 141. At this time, the first strip-shaped abutting plate 142 and the second strip-shaped abutting plate 144 respectively abut against the front and rear side walls of the second stainless steel plate 41. Then both ends of the fixing plate 143 respectively fix the fixing plate 143, the U-shaped frame 145 and the second box body 141 into one body through two second hexagonal screws 146. One second hexagonal screw 146 fixedly connects the fixing plate 143 and the second box body 141, and the other second hexagonal screw 146 fixedly connects the fixing plate 143 and the U-shaped frame 145.

[0090] Next, pour recycled concrete into the U-shaped frame 145. The recycled concrete can flow into the second box body 141 through the second round hole 411 in the middle of the second stainless steel plate 41. After the concrete solidifies, a second recycled concrete layer 44 is formed. After the concrete is cured, the mold is removed to obtain the second splicing module 4.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A modular recycled concrete river bank retaining wall, characterized in that: It comprises a base (1), a prefabricated pile (2) and a retaining wall; the base (1) is arranged on the upper end of the prefabricated pile (2), and the retaining wall is arranged on the top of the base (1); The retaining wall is mainly composed of a spliced ​​wall body and concrete slabs (5) connected to both sides of the spliced ​​wall body. The first and last ends of the spliced ​​wall body are first spliced ​​modules (3). The first spliced ​​modules (3) on both sides are respectively connected to the concrete slabs (5) on both sides. The middle section between the first spliced ​​modules (3) on both sides is spliced ​​by a plurality of second spliced ​​modules (4). The first splicing module (3) and the second splicing module (4) are both provided with a plurality of pipes for drainage, and the joint between the first splicing module (3) and the second splicing module (4) is fixed by means of self-compacting concrete (6); The first splicing module (3) comprises a first stainless steel plate (31), a first stainless steel drainage pipe (32), a first T-shaped connecting piece (33) and a first recycled concrete layer (34); A plurality of first stainless steel drainage pipes (32) are evenly arranged on the first stainless steel plate (31), and a first circular hole (311) is provided in the middle of the first stainless steel plate (31). The first T-shaped connecting piece (33) is fixed on two adjacent sides of the first stainless steel plate (31), and first through holes (331) are evenly provided on the first T-shaped connecting piece (33); A first recycled concrete layer (34) is disposed on both the front and rear sides and in the first circular hole (311) in the middle of the first stainless steel plate (31); the first recycled concrete layers (34) on the front and rear sides of the first stainless steel plate (31) are symmetrical to each other and are arranged in a square shape; the size of the square-shaped first recycled concrete layer (34) is smaller than the size of the first stainless steel plate (31); the square-shaped first recycled concrete layer (34) is higher than the plane of the first T-shaped connector (33) in the thickness direction; the square-shaped first recycled concrete layer (34) is flush with the end of the first stainless steel drain pipe (32); and the square-shaped first recycled concrete layer (34) is arranged close to the adjacent first T-shaped connector (33); The second splicing module (4) comprises a second stainless steel plate (41), a second stainless steel drainage pipe (42), a second T-shaped connecting piece (43), and a second recycled concrete layer (44); a plurality of second stainless steel drainage pipes (42) are evenly arranged on the second stainless steel plate (41), a second circular hole (411) is opened in the middle of the second stainless steel plate (41), second T-shaped connecting pieces (43) are fixed on three sides of the second stainless steel plate (41), and second through holes (431) are evenly opened on the second T-shaped connecting piece (43); A second recycled concrete layer (44) is arranged on both the front and rear sides and in the second circular hole (411) in the middle of the second stainless steel plate (41); the second recycled concrete layers (44) on the front and rear sides of the second stainless steel plate (41) are symmetrical to each other and arranged in a square shape; the size of the square second recycled concrete layer (44) is smaller than the size of the second stainless steel plate (41); the square second recycled concrete layer (44) is higher than the plane of the second T-shaped connector (43) in the thickness direction; the square second recycled concrete layer (44) is flush with the end of the second stainless steel drainage pipe (42); and the square second recycled concrete layer (44) is arranged away from the side of the second stainless steel plate (41) where the second T-shaped connector (43) is not installed.

2. The modular recycled concrete river bank retaining wall according to claim 1 is characterized in that: The retaining wall further comprises a support (11), the support (11) being arranged at intervals at the lower end of the side wall of the retaining wall, and the bottom of the support (11) being fixedly connected to the base (1).

3. The modular recycled concrete river bank retaining wall according to claim 1 is characterized in that: A first stainless steel drainage pipe (32) is evenly disposed through the first stainless steel plate (31) of the first splicing module (3) that does not cover the first recycled concrete layer (34); and a second stainless steel drainage pipe (42) is evenly disposed through the second stainless steel plate (41) of the second splicing module (4) that does not cover the second recycled concrete layer (44).

4. The modular recycled concrete river bank retaining wall according to claim 3 is characterized in that: The spliced ​​wall is a two-layer spliced ​​structure; adjacent second spliced ​​modules (4) in the middle section of the spliced ​​wall are spliced ​​via second T-shaped connectors (43) on the side walls, and the sides of the upper second spliced ​​modules (4) not mounted with the second T-shaped connectors (43) are arranged upward, while the sides of the lower second spliced ​​modules (4) not mounted with the second T-shaped connectors (43) are embedded in the base (1) for fixation; The first splicing modules (3) at the two ends of the splicing wall are respectively spliced ​​with the adjacent first splicing modules (3) and second splicing modules (4) via two first T-shaped connectors (33) on the sides; the first stainless steel plates (31) at the bottom of the lower first splicing module (3) not covering the first recycled concrete layer (34) are embedded in the base (1) for fixation; and the first stainless steel plates (31) at the sides of the upper and lower first splicing modules (3) not covering the first recycled concrete layer (34) are embedded in the concrete slab (5) for fixation.

5. The modular recycled concrete river bank retaining wall according to claim 4 is characterized in that: A casting groove (7) is formed at the joint of adjacent splicing modules in the splicing wall, and four adjacent splicing modules in the upper and lower layers each form a concrete circulation opening (9) through the middle of the splicing, and the casting groove (7), the concrete circulation opening (9), the first through hole (331) and the second through hole (431) are all filled with self-compacting concrete (6); The tops of the upper first splicing module (3) and the second splicing module (4) are provided with concrete capping (10).

6. A method for manufacturing a modular recycled concrete river bank retaining wall as claimed in claim 5, characterized in that: The steps include: Survey the construction site beside the river, carry out partial excavation as needed, support the soft soil, and then drive the precast piles (2) into the soil; A steel bar structure of a concrete slab (5) on one side and a base (1) is constructed on the prefabricated pile (2), wherein the steel bars in the concrete slab (5) are embedded in the prefabricated pile (2) to form a lap connection of the steel bars; The first splicing module (3) and the second splicing module (4) are spliced ​​according to the required length, and when the concrete slab (5) and the base (1) are cast, the first stainless steel drainage pipe (32) on the side of the first stainless steel plate (31) in the first splicing module (3) that is not cast with recycled concrete is buried in the concrete slab (5) and the base (1), and the second stainless steel drainage pipe (42) on the bottom of the second splicing module (4) that is not cast with recycled concrete is buried in the base (1); A concrete slab (5) is cast on the other side of the spliced ​​wall, a first stainless steel drainage pipe (32) on the side of the first stainless steel plate (31) in the first spliced ​​module (3) that is not cast with recycled concrete is embedded in the concrete slab (5) at that location, and steel bars of the concrete slab (5) are embedded in the base (1) to form a lap connection of the steel bars, and then concrete is cast; A long steel baffle (15) with a hollow triangular support at the bottom is placed at the longitudinal casting groove (7) of the spliced ​​wall, and a steel baffle (8) is placed at the transverse casting groove (7), and there is a gap for accommodating concrete between the long steel baffle (15) with a hollow triangular support at the bottom and the bottom of the casting groove (7) and between the steel baffle (8) and the bottom of the casting groove (7); A pouring port (12) is formed at the upper end of a long steel baffle (15) with a hollow triangular support at the bottom of the spliced ​​wall, and self-compacting concrete is poured into the joint of the spliced ​​wall through the pouring port (12). During pouring, any one of the pouring ports (12) is used as a grouting port, and the remaining pouring ports (12) are used as overflow ports; when concrete flows out of the overflow port, pouring is stopped; After the curing is completed, the long steel baffle (15) with the hollow triangular support at the bottom and the steel baffle (8) are removed, and finally the upper part of the retaining wall is sealed with concrete.

7. The method for manufacturing a modular recycled concrete river bank retaining wall according to claim 6, characterized in that: The first splicing module (3) is cast using a first mold (13); the first mold (13) comprises a first box body (131), an L-shaped fixing strip (132), a casting frame (133), a strip plate (134) and a first hexagonal screw (135); a notch for accommodating the first T-shaped connecting piece (33) on the first splicing module (3) is provided on adjacent side walls of the first box body (131); an L-shaped fixing strip (132) is fixed to the bottom of the inner cavity of the first box body (131); two ends of the L-shaped fixing strip (132) are respectively abutted against two side walls of the first box body (131) where the notch is provided; the height of the L-shaped fixing strip (132) is the same as the height of the side walls of the first box body (131) at the notch position; the casting frame (133) is detachably connected to the first box body (131) via the strip plate (134) and the first hexagonal screw (135); The method for manufacturing the first splicing module (3) specifically comprises the following steps: The first stainless steel plate (31) is placed in the first box body (131), and the first T-shaped connecting piece (33) on the side wall of the first stainless steel plate (31) extends out from the notch on the side wall of the first box body (131); Next, place the pouring frame (133) on the surface of the first stainless steel plate (31), and make two adjacent sides of the pouring frame (133) abut against two first T-shaped connectors (33) on the sides of the first stainless steel plate (31). Then cover the strip plate (134). The two ends of the strip plate (134) are respectively fixed to integrate the pouring frame (133) and the first box body (131) through two first hexagonal screws (135). One of the first hexagonal screws (135) fixedly connects the strip plate (134) and the pouring frame (133), and the other first hexagonal screw (135) then fixedly connects the strip plate (134) and the first box body (131). Next, pour recycled concrete into the pouring frame (133). The recycled concrete can flow into the L-shaped fixing strip (132) through the first circular hole (311) in the middle of the first stainless steel plate (31) to fill the L-shaped fixing strips (132) on both sides of the first stainless steel plate (31) and the pouring frame (133). After the concrete solidifies, a first recycled concrete layer (34) is formed. After the concrete is cured, the mold is removed to obtain the first splicing module (3).

8. The method for manufacturing a modular recycled concrete river bank retaining wall according to claim 6, characterized in that: The second splicing module (4) is cast by using the second mold (14). The second mold (14) includes a second box body (141), a first strip abutting plate (142), a T-shaped fixing plate, a U-shaped frame (145) and a second hexagonal screw (146). Notches for avoiding the second T-shaped connectors (43) on the second splicing module (4) are formed on three side walls of the second box body (141). A first strip abutting plate (142) is fixed to the bottom of the inner cavity of the second box body (141). The first strip abutting plate (142) is located on the side close to the side wall of the second box body (141) without a notch. The T-shaped fixing plate is composed of a fixing plate (143) and a second strip abutting plate (144) fixed to the fixing plate (143). The fixing plate (143) and the U-shaped frame (145) are detachably connected to the second box body (141) through the second hexagonal screw (146). The manufacturing method of the second splicing module (4) specifically includes the following steps: Place the second stainless steel plate (41) in the second box body (141), and the second T-shaped connectors (43) on the side wall of the second stainless steel plate (41) extend out from the notches on the side wall of the second box body (141). Next, place the U-shaped frame (145) on top of the second stainless steel plate (41), and make the open end of the U-shaped frame (145) abut against the side wall of the notch of the second box body (141). Then, orient the second strip-shaped abutting plate (144) towards the first strip-shaped abutting plate (142) and cover the fixing plate (143) on the second box body (141). At this time, the first strip-shaped abutting plate (142) and the second strip-shaped abutting plate (144) respectively abut against the front and rear side walls of the second stainless steel plate (41). Next, both ends of the fixing plate (143) respectively fix the fixing plate (143), the U-shaped frame (145) and the second box body (141) into one body through two second hexagonal screws (146); one second hexagonal screw (146) fixedly connects the fixing plate (143) and the second box body (141), and the other second hexagonal screw (146) fixedly connects the fixing plate (143) and the U-shaped frame (145); Next, pour recycled concrete into the U-shaped frame (145). The recycled concrete can flow into the second box body (141) through the second round hole (411) in the middle of the second stainless steel plate (41). After the concrete solidifies, a second recycled concrete layer (44) is formed; after the concrete is cured, the mold is removed to obtain the second splicing module (4).

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