A composite assembled integral slope protection

Abstract

The present invention provides a composite assembled integral slope protection, the purpose of which is to solve the pain points and difficulties of slope protection construction in the prior art and to improve the working performance of the slope protection. A composite assembled integral slope protection is provided, including: a soil base, whose slope surface is inclined and provided with a plurality of fine soil grooves; a solidified soil layer, cast in situ on the slope surface of the soil base; a plurality of connectors, one end of which is located in the soil base and the other end is connected to a prefabricated support plate; a prefabricated support plate, the top of which is a through groove formed by post-cast solidified soil, and the prefabricated support plate is provided with a prefabricated hole matched with the connector; a retaining pile, which is installed on the lower side of the top of the soil base and abuts against the solidified soil layer and the prefabricated support plate. The present invention has the advantages of fast construction, good quality and good integrity through the combination technology of "assembly + cast-in-situ".

Description

Technical Field

[0001] The invention relates to the technical field of assembled buildings, in particular to a composite assembled integral slope protection. Background Art

[0002] Foundation pit support is a temporary support, reinforcement, protection and groundwater control measure for the foundation pit to ensure the safety of underground space structure construction and the surrounding environment. The support structure can be combined with different support forms in the upper and lower parts. For example, in the construction of underground sewage treatment plants, if the space allows, the deep foundation pit support form adopts the upper slope combined with the lower pile row and other support forms. The upper slope is an economical and reasonable support form, and generally adopts "anchor rod + slope sprayed concrete" as a reinforcement measure for the shallow surface of the slope. The lower pile row adopts support and anchor type cast-in-place piles, and a crown beam is set on the top of the pile to connect the pile row as a whole.

[0003] Shotcrete needs to be combined with the characteristics of different types of projects, and wet or dry mixing spraying methods should be selected. Shotcrete has high requirements for construction operations and strict requirements for concrete mix ratios. It is prone to many common quality problems, such as poor flatness of the original soil surface after slope cutting, resulting in poor surface appearance; the original soil layer is not dense and disturbed after the spraying surface layer, resulting in poor bonding; the position of the steel bars in the spraying surface layer is not easy to fix, the thickness of the steel bar protective layer is not satisfactory, and even the steel bars are partially exposed; the strength of the concrete surface layer is uneven, and the thickness varies greatly; the integrity of the surface layer completed by shotcrete is poor, and the sand and gravel aggregates are loose and falling off; improper treatment of expansion joints and poor drainage blockage; many processes and long maintenance time.

[0004] When the slope foot position of the slope support is designed with a row of piles and a top crown beam, there are generally two construction step plans after the excavation of earthwork to form the slope surface. Both plans are insufficient in terms of slope construction quality and protection effect. In engineering practice, the first plan with a shorter slope soil exposure time is more often used. The first plan is to spray the slope surface concrete first, then chisel the pile head, and then make the crown beam. Construction in this order can ensure that the slope treated with sprayed concrete remains stable during the excavation and transportation of the shallow soil in the pit, which complies with the engineering principle of supporting with excavation and reduces slope deformation. However, when the pile head is chiseled out and the crown beam is constructed in the later stage, the slope foot is easily disturbed, damaged and collapsed, and safety problems occur, and rework is required to treat the slope protection. The second plan is to chisel out the pile head first, construct the crown beam, and then spray the slope surface concrete. Construction in this order requires a high self-stabilization ability of the soil, and the construction process such as the crown beam formwork takes a long time, and it is impossible to spray concrete slope protection on the slope surface in a short time. The slope surface is exposed for a long time and cannot be supported within the limited time. The in-situ soil in the slope area is soaked by rainwater or groundwater, and there is a risk of collapse. After the subsequent spraying of concrete, it is difficult to ensure the overall stability of the slope protection.

[0005] In order to solve the above problems, it is necessary to propose a composite assembled integral slope protection. Summary of the invention

[0006] In order to solve the pain points and difficulties in slope protection construction in the prior art and improve the working performance of the slope protection, the present invention provides a composite assembled integral slope protection, which combines the assembly technology with the cast-in-place technology to form an integral system between the slope and the composite crown beam, and has the advantages of fast construction and good quality.

[0007] The technical solution adopted by the present invention is:

[0008] A composite assembled integral slope protection, comprising:

[0009] A plurality of upper support modules, wherein the plurality of upper support modules are enclosed to form the slope protection;

[0010] The upper support module comprises:

[0011] A soil foundation with a slope, wherein a plurality of fine soil grooves are arranged on the slope;

[0012] A plurality of connecting members, one end of which extends into the soil foundation;

[0013] A prefabricated support plate, one side wall of which is provided with a through groove, the prefabricated support plate is provided with a prefabricated hole matched with the connecting piece, the through groove is arranged toward the soil foundation, and a casting cavity is formed between the through groove and the slope surface of the soil foundation;

[0014] A retaining pile is installed on the lower side of the top of the soil foundation and abuts against one end of the prefabricated supporting plate; and

[0015] The soil layer is solidified and then poured into the casting cavity.

[0016] Optionally, the prefabricated support plate comprises:

[0017] plate body;

[0018] Two ribs are arranged on opposite sides of the plate body, and the through groove is formed between the two ribs.

[0019] Optionally, a side wall of the rib plate in contact with the soil foundation is configured as an inclined surface.

[0020] Optionally, the connecting pieces are distributed in a rectangular or diamond shape.

[0021] Optionally, one end of the retaining pile is radially contracted, and the outer side wall of the other end of the retaining pile is provided with a groove for supporting and fixing the prefabricated supporting plate.

[0022] Optionally, the casting material used for the solidified soil layer has fluidity after mixing and forms a semi-rigid body after hardening.

[0023] Optionally, the composite assembled integral slope protection further comprises:

[0024] The lower support module is located at the lower end of the slope of the soil foundation.

[0025] Optionally, the lower support module includes:

[0026] A plurality of retaining piles are arranged on one side of the retaining piles;

[0027] The composite crown beam is installed on the top of a plurality of the supporting piles and connected by a cast-in-place method.

[0028] Optionally, the composite crown beam comprises:

[0029] A prefabricated concrete part, wherein a pouring channel is reserved on the prefabricated concrete part;

[0030] The cast-in-place part is cast in the cavity of the precast concrete part and is arranged along the length direction of the precast concrete part;

[0031] Two plywood plates are symmetrically arranged on both sides of the precast concrete part along its length direction; and

[0032] A plurality of tie rods are arranged between the two clamping plates;

[0033] Wherein, when the composite crown beam is connected to the supporting pile, the cast-in-place concrete enters between the composite crown beam and the supporting pile from the casting channel.

[0034] Optionally, both ends of the composite crown beam are provided with reinforcement bars, and the reinforcement bars of two adjacent composite crown beams are connected and then connected by a cast-in-place wet method.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. The combination technology of "assembly + cast-in-place" is applied in both the upper support module and the lower support module, combining the advantages of both aspects. In addition, new materials are used to optimize the construction, which is efficient and of good quality, and better realizes the use function and support effect of the slope support system.

[0037] 2. The post-casting of solidified soil in the original soil slope and the cavity of the prefabricated support plate has little disturbance to the original soil, which can compensate for the uneven surface of the soil foundation and realize the transition between the original soil slope and the prefabricated support plate slope (design slope). The slope protection realizes the transition of "flexible-semi-rigid-rigid" in the order of "soil foundation-base-surface layer", with a clear force transmission path, which better ensures the integrity and stability of the shallow soil layer.

[0038] 3. Prefabricated support panels are prefabricated components produced in factories, and the product quality and installation effect are more guaranteed. Prefabricated support panels have the characteristics of recycling, avoiding the problem of construction waste after the conventional shotcrete surface layer is broken. Prefabricated support panels can be printed with different patterns on their surface to increase their visual appeal.

[0039] 4. The solidified soil layer is a new type of environmentally friendly material. It uses construction surplus soil and excavated waste soil as the main raw materials, turning waste into treasure, reducing construction costs, and facilitating construction. The solidified soil has self-flowing filling properties and also has the advantages of high strength, good impermeability and high volume stability.

[0040] 5. The crown beam is an important component of the conventional support system. It adopts a superimposed type and eliminates the formwork process. It can save construction time, improve the construction quality of the crown beam, and reduce the impact on the surrounding environment, especially the adjacent slopes, while ensuring the integrity of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a simplified structural diagram of the composite assembled integral slope protection.

[0043] Figure 2 This is a schematic diagram of the split structure of the composite assembled integral slope protection.

[0044] Figure 3 It is a structural schematic diagram of the composite crown beam of the composite assembled integral slope protection.

[0045] Reference numerals:

[0046] 1. Soil foundation; 11. Fine soil groove; 2. Solidified soil layer; 3. Connectors; 4. Prefabricated supporting plates; 41. Through groove; 42. Ribs; 43. Prefabricated holes; 5. Retaining piles; 51. Grooves; 6. Support piles; 7. Composite crown beams; 71. Prefabricated concrete part; 72. Casting channels; 73. Cast-in-place part; 74. Clamps; 75. Tie rods; 76. Keyways. DETAILED DESCRIPTION

[0047] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0051] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0052] like Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a composite assembled integral slope protection, including: a soil base 1, a solidified soil layer 2, a plurality of connecting members 3, a prefabricated support plate 4 and retaining piles 5;

[0053] The slope surface of the soil foundation 1 is inclined, and a plurality of fine soil grooves 11 are provided on the slope surface; a solidified soil layer 2 is cast on the slope surface of the soil foundation 1; a plurality of connectors 3 are inserted into the soil foundation 1 and pass through the solidified soil layer 2; a through groove 41 on the top of the prefabricated support plate 4 can be cast with the solidified soil layer; a prefabricated hole 43 matching with the connector 3 is provided on the prefabricated support plate 4; a retaining pile 5 is installed on the lower side of the top of the soil foundation 1 and abuts against the prefabricated support plate 4.

[0054] First, the slope of the soil foundation 1 is trimmed into an inclined shape, and a fine soil groove 11 is made on the slope. In order to avoid disturbing the original soil, the fine soil groove 11 is formed by compression molding. A row of retaining piles 5 are driven into the lower side of the soil foundation 1. After the retaining piles 5 are completed, the prefabricated support plates 4 are erected along the slope in sequence. The gap between the ribs 42 on both sides of the prefabricated support plates 4 and the soil foundation 1 is blocked. The height of the ribs 42 of the prefabricated support plates 4 should meet the minimum distance requirement between its inner wall and the soil foundation 1, and shall not be less than 2 times the thickness of the prefabricated support plates 4. If the soil foundation slope is inconsistent with the design slope, the slope transition can be achieved by gradually changing the height of the ribs 42. Two adjacent prefabricated support plates 4 are closely spliced ​​with separate joints and arranged in sequence. There is no need to transmit internal forces between the joints, and deformation joints are formed between adjacent plates.

[0055] The prefabricated support plate 4 is provided with a prefabricated hole 43, and the connecting rod is inserted into the soil foundation 1 through the prefabricated hole 43. The connecting rod and the prefabricated support plate 4 are fixedly connected. After the connection, the prefabricated hole 43 is filled with high-strength mortar.

[0056] After the prefabricated support plate 4 is installed and fixed, the solidified soil is poured between the soil base 1 and the prefabricated support plate 4. During pouring, the outlet faces the surface of the soil base 1 to avoid the slurry from impacting the prefabricated support plate 4. In order to reduce the lateral pressure of the flowing solidified soil on the template during pouring, the pouring can be carried out in layers and sections. Because the solidified soil has the prefabricated support plate 4 as a template, the covering and moisturizing maintenance processes can be omitted. After the solidified soil is poured, a solidified soil layer 2 is formed; the material of the solidified soil layer 2 is mainly construction surplus soil and excavated waste soil, and the mixed fluid soil has self-compacting characteristics, and has good impermeability and volume stability after hardening.

[0057] After the installation and fixation of the composite crown beam 7 is completed, the lower clamping plate 74 plays the role of supporting and pouring the template, pouring concrete in the pouring channel 72 of the composite crown beam 7, and connecting the composite crown beam 7 with the supporting pile 6 through the cast-in-place part. After the post-cast concrete reaches a certain strength, the next step can be entered.

[0058] The installation of the prefabricated supporting plate 4, the pouring of the solidified soil layer 2 and the installation of the composite crown beam 7 can be carried out without affecting each other.

[0059] When the foundation pit is backfilled and no support is needed, the prefabricated parts can be removed and recycled for reuse.

[0060] In another embodiment, the original soil on the slope and the prefabricated support plate 4 are combined into a whole by post-pouring a solidified soil layer 2, and the transition from "flexible to semi-rigid to rigid" is achieved in the order of "soil base-base layer-surface layer". The force transmission path is clear, and the integrity of the shallow soil layer is better guaranteed. A reasonable value can be selected between the structural strength (0.5MPa-10MPa) of the solidified solidified soil layer 2.

[0061] In other embodiments, geosynthetics are added to the solidified soil layer according to design requirements to improve the mechanical properties of the solidified soil. The two ends of the geosynthetics are respectively fixed to the inner side of the rib 42, or other measures are taken to set them overhead, and then the solidified soil is poured.

[0062] More specifically, "Soil Stabilization Admixture CJ / T486-2015"; "Soft Soil Stabilizer CJT 526-2018"; "Sichuan Province Solidified Soil Structure Biogas Pool Construction Specification DB51 / T910-2009".

[0063] In another embodiment, if Figure 1 and Figure 2 As shown, in order to ensure the structural strength of the prefabricated support plate 4, its thickness is above 60 mm, and ribs 42 are provided on both sides of the prefabricated support plate 4. The height and shape of the ribs 42 are set according to the requirements to form a top through groove. This makes it difficult for the prefabricated support plate 4 to deform or crack during the hoisting and transportation process, and at the same time, it can resist the lateral pressure of the fluidized solidified soil when pouring the solidified soil.

[0064] In another embodiment, if Figure 1 and Figure 2 As shown, when the slope surface is reinforced with the connector 3, the connector 3 is a rigid rod-shaped body (such as a steel bar or an anchor rod), and the connector 3 is passed through the prefabricated support plate 4 and pressed into the soil foundation 1 through the prefabricated hole 43, and then the prefabricated support plate 4 and the connector 3 are connected by welding or bolts. The connector 3 is arranged in a rectangular or diamond-shaped point, and the shape of the prefabricated hole 43 matches the shape of the connector 3, so that the connector 3 is conveniently passed through the prefabricated support plate 4 and pressed into the soil foundation 1.

[0065] In another embodiment, if Figure 1 and Figure 2 As shown, the retaining pile 5 is a micro rigid pile (such as a steel pipe pile or a reinforced concrete pile), the lower part of which is radially contracted, the middle part of which is a rectangular, circular or polygonal cross-section, and the outer wall at one end of the top is provided with a groove 51 for supporting and fixing the prefabricated support plate 4. The retaining pile 5 is used to fix and support the prefabricated support plate 4.

[0066] In another embodiment, if Figure 1 and Figure 2As shown, the composite crown beam 7 and the supporting piles 6 are connected by cast-in-place method, which saves construction period. The composite crown beam 7 is a prefabricated component, and its side facing the slope is isolated by itself to eliminate the impact of construction on the adjacent slope; the composite crown beam 7 is constructed first and can be used as a temporary support for the prefabricated supporting plate 4. The supporting piles 6 are located on the lower side of the soil foundation 1, and then concrete is poured into the cast-in-place parts of the composite crown beam 7 and the supporting piles 6 for cast-in-place. After the composite crown beam 7 and the supporting piles 6 are connected, a row of retaining piles 5 are driven into one side of the slope foot of the composite crown beam 7. After the retaining piles 5 are completed, the prefabricated supporting plates 4 are erected along the slope in sequence, and the gaps between the ribs 42 on both sides of the prefabricated supporting plates 4 and the soil foundation 1 are sealed.

[0067] In another embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the composite crown beam 7 is a prefabricated part, and it and the cast-in-place part 73 should meet the force requirements and structural requirements of the crown beam. Compared with the conventional crown beam, the prefabricated composite crown beam 7 includes a solid part composed of a prefabricated concrete part 71 and clamping plates 74 arranged on both sides of the cast-in-place part 73. The clamping plates 74 are arranged on both sides of the solid part, so that the cross section of the composite crown beam 7 is an inverted U shape. When the composite crown beam 7 is connected to the support pile 6, the end of the clamping plate 74 away from the solid part extends to the bottom of the support pile 6, so that the clamping plate 74 is located on the treated soil foundation 1.

[0068] The space between the clamping plate 74 and the solid part is the cast-in-place part 73, wherein the thickness of the clamping plate 74 is between 75-85 mm, and the optimal thickness is 80 mm. The dimension between the two clamping plates 74 can clamp the support pile 6. The casting channel 72 is arranged on the top of the solid part to facilitate the casting in place. There are at least two casting channels 72. The number of the casting channels 72 can be increased according to the type of concrete.

[0069] Since the composite crown beam 7 is a prefabricated component, the two plywood 74 is prone to deformation or cracking during the hoisting and transportation process. A tie rod 75 is arranged between the two plywood 74. The tie rod 75 is mainly made of angle steel and is fixed between the two plywood 74. It plays a temporary reinforcement role during the hoisting and transportation process, and strengthens the post-casting area after pouring.

[0070] In another embodiment, if Figure 1 and Figure 2 As shown, the end surface of the composite crown beam 7 is provided with a keyway 76, and a rough surface is provided at the end of the composite crown beam 7, so that the concrete between two adjacent composite crown beams 7 can be better overlapped with the composite crown beam 7. More specifically, the depth of the keyway 76 is not less than 30 mm, and the depth of the rough surface is not less than 6 mm.

[0071] Specific construction steps:

[0072] The slope of the foundation pit is excavated according to the designed slope. The slope surface treatment should be as gentle, straight and dense as possible, and the local weak soil should be excavated. If the slope cannot be self-supporting or stable in a short period of time without support, the slope of the excavation surface can be adjusted to cut the slope. After the slope surface is excavated, in order to enhance the integrity of the slope soil and the solidified soil layer 2, a fine soil groove 11 is made on the surface of the slope soil. In order to avoid disturbing the original soil, the soil groove should be formed by compression molding rather than excavation.

[0073] Chisel away the floating slurry above the designed elevation of the pile top of the support pile 6, clean up the residue, loose soil and accumulated water on the pile top, and make the steel bars exposed from the support pile 6 into an inward bend or mechanical anchoring form. Install the prefabricated composite crown beam 7, and the bottom of the two side clamps 74 of the composite crown beam 7 falls on the solid soil foundation 1 after treatment to block the bottom gap. The soil can be piled up on the side near the excavation surface of the foundation pit to temporarily fix the post-cast crown beam. The connection between adjacent composite crown beams 7 adopts the joint in the form of post-cast belts, and the ends are reinforced. If it is not a one-time casting connection, the ends are formed with a fixed quick-closing fine mesh to form a construction joint.

[0074] At the foot of the slope on the side of the composite crown beam 7 facing the slope, a row of retaining piles 5 is driven in. If it is difficult for the retaining piles 5 to be driven into the soil, guide holes can be made in advance. If there is a water-stop curtain under special design, it needs to be avoided.

[0075] After the retaining piles 5 are completed, the prefabricated support panels 4 can be set up along the slope in sequence. The ribs 42 on both sides of the prefabricated support panels 4 are positioned to seal the gaps with the soil foundation 1. The minimum distance between the inner side of the prefabricated support panel 4 and the soil foundation 1 shall not be less than 2 times the thickness of the prefabricated support panel 4. The adjacent prefabricated support panels 4 are closely spliced ​​with separate joints and arranged in sequence. The joints do not need to transmit internal forces, and deformation joints are formed between adjacent panels.

[0076] A connecting piece 3 for fixing is reserved or inserted later at the position of the prefabricated hole 43 reserved in the prefabricated supporting plate 4. The connecting piece 3 is a steel nail or an anchor rod. The upper end of the connecting rod is connected to the reinforcing ribs and the steel mesh in the prefabricated supporting plate 4 through a locking rib. They are reliably welded to each other. The gap between the prefabricated hole 43 after the connecting piece 3 is inserted and the surface layer is filled with high-strength mortar later.

[0077] After the prefabricated support plate 4 is installed and fixed, the mixed solidified soil can be poured. During pouring, the outlet faces the slope to avoid the impact of the slurry on the prefabricated support plate 4. In order to reduce the lateral pressure of the flowing solidified soil on the template during pouring, the solidified soil can be poured in layers and sections. Because the solidified soil has the prefabricated support plate 4 as a template, the covering and moisturizing maintenance processes can be omitted. After the solidified soil is poured and solidified, a solidified soil layer 2 is formed.

[0078] After the prefabricated composite crown beam 7 is installed and fixed, concrete is poured in the cast-in-place area between the composite crown beam 7 and the support pile 6. The next step can be carried out only when the strength of the cast-in-place concrete reaches a certain strength (specifically, the strength is 50%-100%). If the composite crown beam 7 is poured immediately after the crown beam is installed, and the prefabricated support plate 4 is installed after it reaches a certain strength, the support pile 5 can be omitted, and the bottom of the prefabricated support plate 4 can be supported on the side of the composite crown beam 7 by wooden planks or the like.

[0079] According to the groundwater conditions of the project, appropriate flood prevention and drainage measures should be selected. Temporary construction facilities such as on-site floor and drainage ditch should be set up in conjunction with the slope protection system, and the connection between the entity and the process should be done well.

[0080] After multiple upper support modules are connected, the slope protection part of the foundation pit support project is formed. At the corners of the slope protection, the upper support modules and the lower support modules are adaptively deformed to make the slope protection surface smoother.

[0081] When the foundation pit backfill does not require support, the prefabricated support parts of the slope can be removed for recycling.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A composite assembled integral slope protection, characterized in that: include: A plurality of upper support modules, wherein the plurality of upper support modules are enclosed to form the slope protection; The upper support module comprises: A soil foundation with a slope, wherein a plurality of fine soil grooves are arranged on the slope; A plurality of connecting members, one end of which extends into the soil foundation; A prefabricated support plate, one side wall of which is provided with a through groove, the prefabricated support plate is provided with a prefabricated hole matched with the connecting piece, the through groove is arranged toward the soil foundation, and a casting cavity is formed between the through groove and the slope surface of the soil foundation; A retaining pile is installed on the lower side of the top of the soil foundation and abuts against one end of the prefabricated supporting plate; and Solidifying the soil layer and then pouring it into the casting cavity; A lower support module is located at the lower end of the slope of the soil foundation; The lower support module comprises: A plurality of retaining piles are arranged on one side of the retaining piles; A composite cap beam is installed on top of a plurality of said support piles and connected by cast-in-place method; The composite crown beam comprises: A prefabricated concrete part, wherein a pouring channel is reserved on the prefabricated concrete part; The cast-in-place part is cast in the cavity of the precast concrete part and is arranged along the length direction of the precast concrete part; Two plywood plates are symmetrically arranged on both sides of the precast concrete part along its length direction; and A plurality of tie rods are arranged between the two clamping plates; Wherein, when the composite crown beam is connected to the supporting pile, the cast-in-place concrete enters between the composite crown beam and the supporting pile from the casting channel.

2. The composite assembled integral slope protection according to claim 1 is characterized in that: The prefabricated support plate comprises: plate body; Two ribs are arranged on opposite sides of the plate body, and the through groove is formed between the two ribs.

3. The composite assembled integral slope protection according to claim 2 is characterized in that: A side wall of the rib plate in contact with the soil foundation is arranged as an inclined surface.

4. The composite assembled integral slope protection according to claim 1 is characterized in that: One end of the retaining pile is radially contracted, and the outer side wall of the other end of the retaining pile is provided with a groove for supporting and fixing the prefabricated supporting plate.

5. The composite assembled integral slope protection according to claim 1 is characterized in that: The casting material used in the solidified soil layer has fluidity after mixing and forms a semi-rigid body after hardening.

6. The composite assembled integral slope protection according to claim 1 is characterized in that: Both ends of the composite crown beam are provided with reinforcement bars, and the reinforcement bars of two adjacent composite crown beams are connected and then connected by a cast-in-place wet method.

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