A multi-layer protective ecological slope protection structure

Abstract

The utility model discloses a multi-layer protective ecological slope protection structure in the field of slope protection technology, comprising a positioning groove barrel, a soil-fixing limit frame, a connection frame, and a planting frame. A plurality of the positioning groove barrels are pre-buried in a rectangular array on the outer inclined surface of the slope protection soil foundation, a connection frame is arranged in each positioning groove barrel, and the tops of the plurality of connection frames jointly bear a soil-fixing limit frame of an integral structure, and a plurality of planting frames are also arranged on the top of the soil-fixing limit frame. The plurality of positioning groove barrels can be spread all over the slope protection soil foundation to form a plurality of positioning points, and then the plurality of connection frames are floatingly locked in the positioning groove barrels, and the integral soil-fixing limit frame is clamped in the plurality of connection frames to form a multi-point force dispersion, so that the impact force is evenly distributed in the plurality of positioning groove barrels, and the entire soil-fixing limit frame has both a covering effect and an anchoring effect on the soil layer, and the soil-fixing limit frame and the connection frame form two layers of protection, and the vegetation on the top of the same planting frame can effectively isolate the soil layer from being eroded by water flow.

Description

Technical Field

[0001] The utility model relates to the technical field of slope protection, in particular to a multi-layer protective ecological slope protection structure. Background Art

[0002] Ecological slope protection is a slope protection technology that integrates the basic knowledge of engineering mechanics, soil science, ecology, botany and other disciplines to support slopes or slopes, forming a comprehensive slope protection system composed of plants or engineering and plants. By planting plants and utilizing the interaction between plants and rock and soil, the surface of the slope is protected and reinforced, which can not only meet the requirements for the stability of the slope surface, but also restore the damaged natural ecological environment. It is an effective means of slope protection and consolidation.

[0003] There are also some ecological slope protection forms with vegetation. These similar slope protection bases and retaining layers will be embedded with several anchor rods, and then retaining frames will be set up, and isolation nets will be set up to prevent soil erosion.

[0004] The use of vegetation to consolidate the soil has greatly reduced the soil erosion of the ecological slope protection, increased the stability of the anchor rod in the slope protection base, and adjusted the insertion depth of the anchor rod in the soil layer and the angle of the surface of the slope protection base, so that the retaining frame can be closely attached to the surface of the slope protection base, thereby increasing practicality. However, this type of device can only protect the surface soil of the slope protection, and the bottom surface of the side bottom slope protection will still be lost due to the erosion of the water flow. Sometimes soil cavities will be formed inside the baffle-shaped slope protection, making it difficult to reinforce and store rainwater and soil, thereby making the green and environmentally friendly ecological slope protection structure less effective. In addition, this slope protection structure connected to the slope protection base by the anchor rod, the anchor rod is a long rod in the soil layer that carries the green plants on the top. As the rainwater erodes, a gap will form between the anchor rod and the slope protection base. The greater the force, the larger the gap will be, and it may even become a concentrated point of rainwater erosion, which will cause the slope protection structure to fall off due to long-term erosion, and will also reduce the service life of this slope protection structure.

[0005] Based on this, the utility model designs a multi-layer protective ecological slope protection structure to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a multi-layer protective ecological slope protection structure, which can be covered with multiple positioning grooves on the slope protection soil foundation to form multiple positioning points, and then float-locked in the positioning grooves through multiple connecting frames, and an integral soil-fixing limit frame is clamped in multiple connecting frames to form a multi-point force dispersion, so that the impact force is evenly distributed in multiple positioning grooves, and the positioning grooves are not inserted later, but are pre-buried in the soil layer to form an integral structure, and a countersunk hole structure is formed, which is more stable, and the connecting frame is locked by a connecting block and a fixing ring, so that the connection between the connecting frame and the positioning groove and the soil layer is more stable, and the entire soil-fixing limit frame has both covering and anchoring effects on the soil layer, and is provided with a frame and a bottom frame, which can effectively prevent the soil layer from being eroded by running water, and the soil-fixing limit frame and the connecting frame form two layers of protection, which have good protective effect and effectively isolate the soil layer from being eroded by water flow, and the planting frame on the top of the soil-fixing limit frame can add another layer of protection, and the vegetation on the planting frame can effectively play a role in soil fixing.

[0007] The utility model is implemented as follows: a multi-layer protective ecological slope protection structure, comprising:

[0008] Positioning groove drum, soil-fixing limit frame, connection frame, planting frame and slope protection soil foundation;

[0009] The slope protection soil foundation is an inclined slope outside the soil foundation, a reinforcement plate is vertically arranged at the bottom of the slope of the slope protection soil foundation, and retaining blocks are stacked outside the reinforcement plate;

[0010] The positioning groove cylinder is a circular groove with openings at both ends. The bottom of the groove of the positioning groove cylinder is further connected to the embedded cylinder downward. Countersunk holes are formed inside the positioning groove cylinder and the embedded cylinder. A plurality of the positioning groove cylinders are embedded in a rectangular array on the outer inclined surface of the slope protection soil foundation. A connection frame is placed in each positioning groove cylinder.

[0011] The connecting frame is a square box that is concave downwards, the bottom and sides of the connecting frame are closed and the top is open, a plurality of reinforcement tubes are evenly arranged in the top groove of the connecting frame, each of the reinforcement tubes protrudes upwards in the top groove of the connecting frame, and the top of the reinforcement tube is lower than the top opening of the connecting frame, and each of the reinforcement tubes is connected to the upper and lower sides of the connecting frame;

[0012] The bottom of the connection frame is also provided with an embedded rod protruding downward, and a connecting block and a fixing ring are also mounted on the embedded rod. The fixing ring is arranged between the connecting block and the connection frame, the connecting block is slidably inserted in the embedded tube, and the fixing ring can be slidably installed in the groove of the positioning groove tube.

[0013] The outer edge of the embedded tube is evenly provided with a plurality of locking holes, and a plurality of locking bolts are installed on the fixing ring, and each of the locking bolts is locked in a locking hole one by one;

[0014] The soil-fixing limit frame is an integral square frame structure, and a plurality of positioning grooves are arranged in a rectangular array inside the soil-fixing limit frame, each positioning groove (21) is a box with a closed bottom and surroundings and an open top, each positioning groove is isolated from each other, and the bottom of each positioning groove is convex downward, and the plurality of positioning grooves and the soil-fixing limit frame are an integral structure, and a clamping hole is provided in each positioning groove;

[0015] The planting frame is a square box body with an open top and a closed bottom and surrounding areas. A plurality of planting holes are evenly arranged on the top of the planting frame. A clamping rod protrudes downward from the bottom of the planting frame, and each clamping rod can be detachably inserted into a clamping hole.

[0016] Furthermore, the locking bolt is a hexagonal bolt, and washers are mounted on both upper and lower ends of the locking bolt. A spring is also mounted on the outside of the locking bolt, and the spring clip is arranged between the upper and lower washers. Each of the locking bolts is threadedly locked in a locking hole.

[0017] The fixing ring is tightly abutted against the bottom of the positioning groove cylinder in a detachable manner, and the embedded cylinder is connected to both the inner and outer sides of the positioning groove cylinder;

[0018] The positioning groove cylinder and the fixing ring are clearance matched, and the embedded cylinder and the connecting block are also clearance matched.

[0019] Furthermore, the connection block, the fixing ring and the bottom surface of the connection frame are parallel to each other, and the connection block and the fixing ring are both located below the connection frame;

[0020] The bottom of the connection frame fits with the slope surface of the slope foundation, the fixing ring elastically abuts against the bottom of the groove of the positioning groove barrel through the locking bolts, the fixing ring is fixedly connected to the embedded rod, and a plurality of the locking bolts are slidably inserted on the fixing ring, and the locking bolts are perpendicular to the plane where the fixing ring is located;

[0021] The adjacent connection frames are closely fitted to each other on the slope protection foundation.

[0022] Furthermore, the bottom retaining block is stably stacked on the top of the riverbed, and the top retaining block abuts against the bottom of the soil-fixing limit frame.

[0023] The beneficial effects of the utility model are as follows: 1. The utility model is pre-buried in the slope protection soil foundation through the positioning groove barrel to form an anchor point, and then docked in the positioning groove barrel through the connecting frame, and the connecting block is inserted in the pre-buried barrel, so that the force-bearing structure is more solid, and the fixing ring and the positioning groove barrel are elastically locked to form a buffering effect, and can also be pressed with the slope protection soil foundation through the soil layer, so the connection effect is good, and a plurality of connecting frames are mutually fitted and spliced ​​to form the first layer of protection for the slope protection soil foundation, and the entire connecting frame not only plays the role of anchoring, but also plays the role of soil layer protection;

[0024] 2. A soil-fixing limit frame is also mounted on the top of the connection frame. The soil-fixing limit frame is an integral structure, which is integrally mounted in multiple connection frames to form an overall force. The force of the entire soil-fixing limit frame is dispersed to multiple connection frames to bear, so that the entire slope protection soil foundation forms an integral force, the force is more stable and uniform, and the bearing capacity of the entire slope protection soil foundation is stronger;

[0025] 3. The top of the soil-fixing limit frame is divided into multiple positioning grooves, so that each positioning groove is clamped with a planting frame and the clamping is stable. While forming an overall force, the planting frame can be removed from the top of the soil-fixing limit frame, which is convenient for disassembly and assembly, so that the planting frame can form an overall slope protection effect through vegetation and the soil-fixing limit frame, and a single planting frame can be removed and replaced, which is more convenient and flexible to use, forming a long-term and effective vegetation slope protection effect on the slope protection soil base, improving the connection stability between the slope protection structure and the green environmental protection ecological slope, and extending the service life of the slope protection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of multiple positioning grooves pre-buried on the slope protection soil foundation of the utility model;

[0029] Figure 3 This is a schematic diagram of the matching structure of the positioning groove barrel and the connection frame of the utility model;

[0030] Figure 4 This is a schematic diagram of the bottom structure of the connection frame of the utility model;

[0031] Figure 5 This is a schematic diagram of the locking bolt structure of the utility model;

[0032] Figure 6 This is a schematic diagram of the soil-fixing limit frame structure of the utility model;

[0033] Figure 7 This is a schematic diagram of the planting frame structure of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 1-positioning groove cylinder, 11-embedded cylinder, 12-locking hole, 2-soil-fixing limit frame, 21-positioning groove, 22-clamping hole, 3-connecting frame, 31-connecting block, 32-embedded rod, 33-fixing ring, 34-reinforcement cylinder, 4-locking bolt, 41-washer ring, 42-spring, 5-planting frame, 51-planting hole, 52-clamping rod, 6-slope foundation, 61-reinforcement plate, 62-retaining block, 63-riverbed. DETAILED DESCRIPTION

[0036] See also Figures 1 to 7 As shown, the utility model provides a multi-layer protective ecological slope protection structure. In order to better understand the above technical solution, the above technical solution will be described in detail below in combination with the drawings in the specification and specific implementation methods.

[0037] In a specific embodiment of the technical solution of the utility model:

[0038] It includes a positioning groove drum 1, a soil-fixing limit frame 2, a connection frame 3, a planting frame 5 and a slope protection soil base 6;

[0039] The slope protection foundation 6 is a slope inclined outside the foundation. A reinforcement plate 61 is vertically arranged at the bottom of the slope of the slope protection foundation 6. A retaining block 62 is stacked outside the reinforcement plate 61. The reinforcement plate 61 and the retaining block 62 are stably stacked on the top of the river bank edge of the riverbed 63. The bottom retaining block 62 is stably stacked on the top of the riverbed 63, and the top retaining block 62 abuts against the bottom of the soil-fixing limit frame 2. Thus, the riverbed 63 is effectively pressed and stacked by the retaining block 62, the retaining block 62 is supported by the bearing of the riverbed 63, and the reinforcement plate 61 is blocked and positioned by the retaining block 62, so that the reinforcement plate 61 surrounds the bottom soil layer of the slope protection foundation 6 to form an effective support.

[0040] The positioning groove cylinder 1 is a circular groove with openings at both ends. The bottom of the groove of the positioning groove cylinder 1 is further connected downward to the embedded cylinder 11. Countersunk holes are formed inside the positioning groove cylinder 1 and the embedded cylinder 11. Multiple positioning groove cylinders 1 are embedded in a rectangular array on the outer inclined surface of the slope protection foundation 6; a connection frame 3 is arranged in each positioning groove cylinder 1;

[0041] The connecting frame 3 is a square box that is concave downwards. The connecting frame 3 is closed on all sides and at the bottom, and is open at the top. A plurality of reinforcing tubes 34 are evenly arranged in the top groove of the connecting frame 3. Each reinforcing tube 34 protrudes upward in the top groove of the connecting frame 3, and the top of the reinforcing tube 34 is lower than the top opening of the connecting frame 3. Each reinforcing tube 34 is connected to the upper and lower sides of the connecting frame 3.

[0042] The bottom of the connection frame 3 is also provided with an embedded rod 32 protruding downward, and the embedded rod 32 is also provided with a connecting block 31 and a fixing ring 33, the fixing ring 33 is arranged between the connecting block 31 and the connection frame 3, the connecting block 31 is slidably inserted in the embedded cylinder 11, and the fixing ring 33 can be slidably installed in the groove of the positioning groove cylinder 1; the bottom surfaces of the connecting block 31, the fixing ring 33 and the connection frame 3 are parallel to each other, and the connecting block 31 and the fixing ring 33 are both located below the connection frame 3;

[0043] The bottom of the connection frame 3 fits with the slope surface of the slope protection foundation 6, the fixing ring 33 elastically abuts against the bottom of the groove of the positioning groove cylinder 1 through the locking bolts 4, the fixing ring 33 is fixedly connected to the embedded rod 32, and a plurality of locking bolts 4 are slidably inserted on the fixing ring 33, and the locking bolts 4 are perpendicular to the plane where the fixing ring 33 is located;

[0044] Adjacent connection frames 3 are closely fitted to each other on the slope protection foundation 6 .

[0045] The outer edge of the embedded tube 11 is evenly provided with a plurality of locking holes 12, and a plurality of locking bolts 4 are installed on the fixing ring 33, and each locking bolt 4 is locked in a corresponding locking hole 12;

[0046] The locking bolt 4 is a hexagonal bolt, and the upper and lower ends of the locking bolt 4 are equipped with gaskets 41. The outside of the locking bolt 4 is also equipped with a spring 42, and the spring 42 is clamped between the upper and lower gaskets 41. Each locking bolt 4 is locked in a locking hole 12 through a thread; the connecting frame 3 is locked on the positioning groove cylinder 1 through the locking bolt 4, and the connecting frames 3 are spliced ​​together in a rectangular array to form a dense square box, and each connecting frame 3 can be individually locked with the positioning groove cylinder 1, and the anchoring effect is better, and the spring 42 on the locking bolt 4 can buffer the external force exerted on the connecting frame 3, play a stable support and protection role, and also enable the connecting frame 3 to maintain the covering and support effect on the surface of the slope protection foundation 6.

[0047] The fixing ring 33 is tightly pressed against the bottom of the positioning groove cylinder 1 so as to be separable, and the embedded cylinder 11 is connected to both the inner and outer sides of the positioning groove cylinder 1;

[0048] The positioning groove cylinder 1 and the fixing ring 33 are clearance-fitted, and the embedded cylinder 11 and the connecting block 31 are also clearance-fitted.

[0049] The soil-fixing limit frame 2 is an integral square frame structure, and a plurality of positioning grooves 21 are arranged in a rectangular array inside the soil-fixing limit frame 2. Each positioning groove 21 is isolated from each other, and each positioning groove 21 is closed at the bottom and around and open at the top. The bottom of each positioning groove 21 bulges downward, and the plurality of positioning grooves 21 and the soil-fixing limit frame 2 are an integral structure, and a clamping hole 22 is provided in each positioning groove 21, so that the plurality of positioning grooves 21 form a plurality of independent convex block structures;

[0050] The planting frame 5 is a square box body with an open top, a closed bottom and four sides. A plurality of planting holes 51 are evenly arranged on the top of the planting frame 5, and each planting hole 51 is connected to the upper and lower surfaces of the planting frame 5, so that the roots and surface layer of the slope protection vegetation planted can surround the planting frame 5 to form an integral structural soil layer, thereby playing a role in slope protection. A clamping rod 52 is protruding downward at the bottom of the planting frame 5, and each clamping rod 52 can be detachably inserted in a clamping hole 22. Such a structure allows the planting frame 5 to be assembled on the soil-fixing limit frame 2 and to be replaced, which is convenient for replacing vegetation that is not conducive to growth. The device can even pre-cultivate vegetation in a suitable environment, and then transfer the entire planting frame 5 to the top positioning groove 21 of the soil-fixing limit frame 2 of the slope protection soil foundation 6, making vegetation planting more convenient. The planting frame 5 can be modularly installed, and the vitality and root system of the slope protection vegetation can effectively improve the adhesion and waterproof effect of the soil layer. The device performs modular vegetation management on the slope protection, which is more convenient.

[0051] It should be noted that:

[0052] The current vegetation-type slope protection is to insert anchor rods into the deeper slope protection soil foundation 6, and to protect the soil layer through the surface baffle. In this case, only a few anchor rods are bearing the force. When the soil layer structure is relatively solid, the structural integrity is high. When the water flow infiltrates and scours for a long time, the anchor rods cannot form a complete structure with the slope protection soil foundation 6, and the soil layer is easily scoured along the anchor rods to produce gaps, causing the entire slope protection structure to loosen. The present device is not through anchor rods, but installs multiple positioning grooves 1 on the entire slope protection to form multiple structures equivalent to ground nails, which are pre-buried deep into the soil layer, and are not separate long rods, but through positioning grooves 1 and pre-buried tubes 11 A cylindrical structure in the shape of a countersunk hole is formed, thereby forming multiple dense anchor points on the slope protection foundation 6, and a stable structure in the shape of a step, and then the embedded rod 32 is inserted into the embedded tube 11, so that the connecting frame 3 is inserted and locked outside the positioning sleeve 1, and at the same time locked by the locking bolt 4, so that the entire connecting frame 3 and the slope protection foundation 6 form a more stable locking method, and multiple connecting frames 3 are individually locked with the slope protection foundation 6, and then the slope protection foundation 6 is covered and protected by the connecting frame 3, and the connecting frame 3 is elastically supported by the spring of the locking bolt 4, which can achieve a buffering effect, and there is no such slope protection device with a buffering effect in the existing device.

[0053] The connecting frame 3 of the device forms the first layer of slope protection device, and the second layer of protection is formed by stably clamping the soil-fixing limit frame 2 on the top of the connecting frame 3. The positioning groove 21 and the top of the connecting frame 3 can be interference fit or overfit, and are clamped to a certain depth, so that the connecting frame 3 can stably clamp the soil-fixing limit frame 2 of the overall structure, thereby forming an overall force-bearing structure through multiple connecting frames 3 and the soil-fixing limit frame 2 of the overall structure, so that the soil-fixing limit frame 2 forms the second layer of protection, and further forms a supporting effect on the slope protection foundation 6.

[0054] The planting frame 5 is then clamped in the positioning groove 21, and soil is filled on the planting frame 5 to plant green plants or soil-fixing turf, which can form a vegetation-type protection effect and play an effective supporting role. The planting frame 5 can be replaced on the soil-fixing limit frame 2, which can not only fix the soil, but also can be cultivated in a greenhouse or other nursery. After the turf is completely cultivated to maturity with the soil layer, the entire planting frame 5 is directly transported and installed in the positioning groove 21, so that the plant roots in the planting frame 5 can form an overall ecological slope protection more quickly with the soil-fixing limit frame 2. While the structure has multiple layers of protection, the planting frame 5 forms a modular replacement effect, so that the vegetation can remain alive for a long time, the ecological effect is better, the soil fixing effect of the device is maintained, and the effective life of the slope protection device is extended.

[0055] The construction steps of this utility model are as follows:

[0056] Step 1: surround the slope protection foundation 6 to form an inclined slope on the outside of the slope protection foundation 6, vertically place a reinforcement plate 61 on the outermost periphery of the slope protection so that the reinforcement plate 61 blocks the bottom soil layer of the slope protection foundation 6, and stack retaining blocks 62 on the outside of the reinforcement plate 61 to form a clamping effect on the reinforcement plate 61 through the retaining blocks 62 to ensure that the reinforcement plate 61 is upright and stable;

[0057] Step 2, pre-embed the positioning groove drum 1 on the outer slope surface of the slope protection foundation 6, and the lower end of the positioning groove drum 1 is also provided with an embedded tube 11, and the embedded tube 11 and the positioning groove drum 1 form an integral countersunk hole structure, and the positioning groove drum 1 and the slope protection foundation 6 are pre-embedded and pressed into an integral structure. The countersunk hole structure of the positioning groove drum 1 can form a stepped anchoring effect with the slope protection foundation 6, and the ground gripping anchoring effect is better than that of a straight rod;

[0058] Step 3, take the connecting frame 3 and install it in the countersunk hole formed by the embedded tube 11 and the positioning groove tube 1, insert the embedded rod 32 and the connecting block 31 into the embedded tube 11, and lock the fixing ring 33 and the locking hole 12 at the bottom of the positioning groove tube 1 through the locking bolt 4. After the assembly is stable, fill the positioning groove tube 1 with soil, and press the filling soil in the positioning groove tube 1. The connecting frame 3 can be locked with the embedded rod 32 by nuts, or it can be pre-welded, as long as the connection can be ensured to be firm. When filling the soil, you can fill the soil first and then press the embedded rod 32 and the connecting frame 3 to press the soil layer, and a plurality of reinforcement tubes 34 are set in the groove at the top of the connecting frame 3. The excess soil in the positioning groove tube 1 will be squeezed outward along the reinforcement tube 34. The groove at the top of the connecting frame 3 is also filled with soil, and the soil on the top of the connecting frame 3 is pressed with the filling soil in the positioning groove tube 1 through the reinforcement tube 34 to form an overall soil layer structure. After pressing, the anchoring is more stable;

[0059] Step 4, install the soil-fixing limit frame 2 on the multiple connection frames 3, so that the positioning grooves 21 and the connection frames 3 are snap-fitted and installed one by one, ensuring that the installation is stable, so that the connection frames 3 form an integral load-bearing force, and lay a retaining block 62 at the bottom end of the soil-fixing limit frame 2, and the uppermost retaining block 62 needs to be set;

[0060] Step 5, a planting frame 5 is installed in each positioning groove 21 of the soil-fixing limit frame 2, so that the clamping rod 52 at the bottom of the planting frame 5 is docked with the clamping hole 22 in the positioning groove 21 to ensure stable insertion;

[0061] Step 6, planting seeds in the planting holes 51 in each planting frame 5, filling the grooves on the top of the planting frames 5 with soil, and maintaining the vegetation so that the roots of the vegetation in the planting frames 5 reinforce the soil layer, thereby completing the installation of the slope protection foundation 6.

[0062] The outer side of the device refers to the side facing the water flow or the slope, and the inner side refers to the side facing the soil layer. The orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model.

[0063] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A multi-layer protective ecological slope protection structure, characterized in that: include: A positioning groove drum (1), a soil-fixing limit frame (2), a connection frame (3), a planting frame (5) and a slope protection soil base (6); The slope protection soil foundation (6) is a slope inclined outside the soil foundation, a reinforcement plate (61) is vertically arranged at the bottom of the slope of the slope protection soil foundation (6), and retaining blocks (62) are stacked outside the reinforcement plate (61); The positioning groove cylinder (1) is a circular groove with openings at both ends. The bottom of the groove of the positioning groove cylinder (1) is further connected downward to the embedded cylinder (11). Countersunk holes are formed inside the positioning groove cylinder (1) and the embedded cylinder (11). A plurality of the positioning groove cylinders (1) are embedded in a rectangular array on the outer inclined surface of the slope protection soil foundation (6). A connection frame (3) is arranged inside each positioning groove cylinder (1). The connecting frame (3) is a closed square box that is concave downwards. The connecting frame (3) is closed on all sides and at the bottom and is open at the top. A plurality of reinforcing tubes (34) are evenly arranged in the top groove of the connecting frame (3). Each of the reinforcing tubes (34) protrudes upwards in the top groove of the connecting frame (3), and the top of the reinforcing tube (34) is lower than the top opening of the connecting frame (3). Each of the reinforcing tubes (34) is connected to the upper and lower sides of the connecting frame (3); The bottom of the connection frame (3) is also provided with an embedded rod (32) protruding downwards, and the embedded rod (32) is also provided with a connecting block (31) and a fixing ring (33), and the fixing ring (33) is arranged between the connecting block (31) and the connection frame (3), the connecting block (31) is slidably inserted in the embedded cylinder (11), and the fixing ring (33) is slidably installed in the groove of the positioning groove cylinder (1) up and down; The outer edge of the embedded tube (11) is evenly provided with a plurality of locking holes (12); a plurality of locking bolts (4) are installed on the fixing ring (33); each of the locking bolts (4) is locked in a corresponding locking hole (12); The soil-fixing limit frame (2) is an integral square frame structure, and a plurality of positioning grooves (21) are arranged in a rectangular array inside the soil-fixing limit frame (2), and each positioning groove (21) is a box with a closed bottom and surroundings and an open top, and each positioning groove (21) is isolated from each other, and the bottom of each positioning groove (21) is protruding downward, and the plurality of positioning grooves (21) and the soil-fixing limit frame (2) are an integral structure, and a clamping hole (22) is provided in each positioning groove (21); The planting frame (5) is a square box body with an open top and a closed bottom and surrounding areas. A plurality of planting holes (51) are evenly arranged on the top of the planting frame (5). A clamping rod (52) is protruding downward from the bottom of the planting frame (5). Each clamping rod (52) can be detachably inserted into a clamping hole (22).

2. A multi-layer protective ecological slope protection structure according to claim 1, characterized in that: The locking bolt (4) is a hexagonal bolt, and the upper and lower ends of the locking bolt (4) are both provided with gaskets (41). A spring (42) is also provided outside the locking bolt (4), and the spring (42) is sandwiched between the upper and lower gaskets (41). Each locking bolt (4) is screw-locked in a locking hole (12). The fixing ring (33) is tightly abutted against the bottom of the positioning groove cylinder (1) so as to be separable, and the embedded cylinder (11) is connected to both the inner and outer sides of the positioning groove cylinder (1); The positioning groove cylinder (1) and the fixing ring (33) are clearance-fitted, and the embedded cylinder (11) and the connecting block (31) are also clearance-fitted.

3. A multi-layer protective ecological slope protection structure according to claim 2, characterized in that: The connecting block (31), the fixing ring (33) and the bottom surface of the connecting frame (3) are parallel to each other, and the connecting block (31) and the fixing ring (33) are both located below the connecting frame (3); The bottom of the connection frame (3) is fitted with the slope surface of the slope protection soil foundation (6), the fixing ring (33) elastically abuts against the bottom of the groove of the positioning groove cylinder (1) through the locking bolts (4), the fixing ring (33) is fixedly connected to the embedded rod (32), a plurality of the locking bolts (4) are slidably inserted on the fixing ring (33), and the locking bolts (4) are perpendicular to the plane where the fixing ring (33) is located; Adjacent connection frames (3) are closely fitted to each other on the slope protection soil base (6).

4. The multi-layer protective ecological slope protection structure according to claim 1 is characterized by: The bottom retaining block (62) is stably stacked on the top of the riverbed (63), and the top retaining block (62) abuts against the bottom of the soil-fixing limit frame (2).

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