Ecological slope protection and revegetation system and construction method of water intercepting vegetation planting belt for steep rocky high slopes

Abstract

The present invention relates to an ecological slope protection and revegetation system for a steep rocky high slope and a construction method, comprising the following steps: precast beams are fixedly connected to the steep rocky high slope through anchor cables; cast-in-place concrete slab construction is carried out; steel support installation is carried out; long bag vegetation belts are constructed on an operation platform; and green vegetation is planted and maintained. The beneficial effects of the present invention are as follows: by designing a top-overhanging prefabricated assembled drainage ditch, precast beams provided with reserved grooves are arranged on the steep rocky high slope, and both ends are supported in the reserved grooves of the precast beams, and the overhanging prefabricated assembled drainage ditch is semi-suspended, realizing the sectional assembly of the overhanging prefabricated assembled drainage ditch, realizing the regulated irrigation of water flow, and ensuring the plant survival rate of the long bag vegetation belts; by developing a fixing technology for fixing the long bag vegetation belts on the slope with standardized buckles, the long bag vegetation belts are fixed to the steep rocky high slope through snap-type anchor bolts.

Description

Technical Field

[0001] The present invention belongs to the field of ecological restoration, and particularly relates to a water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes and a construction method thereof. Background Technique

[0002] With the improvement of people's awareness of ecological environment protection, ecological slope protection technologies have gradually been taken seriously and developed. Due to characteristics such as rock exposure, poor soil, and steep slopes of rocky steep slopes, it is difficult for vegetation to naturally recover, which in turn leads to a series of ecological environment problems such as soil erosion and landscape damage. These problems not only affect the stability of the slope but may also have a negative impact on the surrounding environment. Slope stability requirements: During engineering processes such as road construction, bridge building, mine development, and dam construction, the stability of steep rocky high slopes is crucial. Traditional engineering slope protection methods such as shotcrete with wire mesh and grouting can ensure the stability of the slope to a certain extent, but they often require large investments and are not conducive to ecological restoration.

[0003] In summary, for the construction of a water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes, it is very important to seek a water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes and a construction method thereof with fast construction speed, simple operation, and reliable construction quality. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes and a construction method thereof.

[0005] This water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes includes a steep rocky high slope, precast beams, cantilever precast assembled drainage ditches, steel support frames, operation platforms, and long bag vegetation planting belts; the precast beams are fixedly connected to the top of the steep rocky high slope through anchor cables, and cast-in-place concrete slabs are provided between the precast beams; the cantilever precast assembled drainage ditches are installed on the precast beams and are provided with drip irrigation systems; the steel support frames are arranged from top to bottom along the steep rocky high slope, and the top ends of the steel support frames are connected to the precast beams; the operation platforms are installed on the steel support frames; the steep rocky high slope is provided with a slope line, and the long bag vegetation planting belts are adhesively connected to the slope line.

[0006] Preferably, the precast beams are provided with embedded threaded rods, embedded steel bars, and reserved holes. One end of the precast beam extends out in a cantilever manner from the top of the steep rocky high slope, and a reserved groove and an anti-detachment rib plate are provided at the cantilever end; the anchor cables pass through the reserved holes to fix the precast beams.

[0007] Preferably, a cast-in-place concrete slab is provided at the top of the steep rocky high slope. The cast-in-place concrete slab includes a steel reinforcement cage; the steel reinforcement cage is fixedly welded to the embedded steel bars of the precast beam, and a reserved groove is provided on one side of the cast-in-place concrete slab close to the slope line.

[0008] Preferably, the steel support frame includes inner columns, outer columns, upper cross beams, lower cross beams and an operation platform; ear plates are provided on the upper cross beams, and the ear plates are fixedly connected to the precast beam through embedded threaded rods; the lower cross beam is anchored to the bottom of the slope; the operation platform includes a safety net, guardrails, cross bars and longitudinal bars. Among them, ear plates are provided on the cross bars, and the ear plates are connected and fixed to the inner columns and outer columns through fixing screws. Longitudinal bars and guardrails are sequentially arranged on the upper part of the cross bars from bottom to top, and a safety net is provided between the guardrails.

[0009] Preferably, the operation platform is installed at different heights of the steel support frame from top to bottom, and a plurality of operation platforms are provided according to the slope length; the long bag vegetation belt is fixedly connected to the steep rocky high slope through snap-type anchor rods.

[0010] Preferably, the snap-type anchor rod includes an anchor rod and a V-shaped steel bar, and the V-shaped steel bar is welded to the end of the anchor rod.

[0011] Preferably, the cantilever precast assembled drainage ditch includes several segments. Both ends of each cantilever precast assembled drainage ditch segment are supported in the reserved groove of the precast beam. One side of the middle part of the cantilever precast assembled drainage ditch is placed on the reserved groove of the cast-in-place concrete slab. A plastic hose is provided inside the long bag vegetation belt, and holes are provided on the plastic hose. The cantilever precast assembled drainage ditch is provided with an embedded drip irrigation steel pipe, and the embedded drip irrigation steel pipe is connected to the plastic hose; a piston is installed on the embedded drip irrigation steel pipe.

[0012] The construction method of this water intercepting and vegetation belt ecological slope protection and revegetation system for steep rocky high slopes includes the following steps:

[0013] Step 1: The precast beam is fixedly connected to the steep rocky high slope through anchor cables;

[0014] Step 2: Construction of the cast-in-place concrete slab: The steel reinforcement cage is fixedly welded to the embedded steel bars, the cast-in-place concrete slab is poured, and a reserved groove is set at the slope line position;

[0015] Step 3: Installation of the steel support frame: The top of the steel support frame is fixed to the precast beam, and the bottom end is anchored to the bottom of the slope; operation platforms are arranged at different heights of the steel support frame;

[0016] Step 4: Construction of the long bag vegetation belt on the operation platform: The long bag vegetation belt is fixed to the steep rocky high slope through snap-type anchor rods;

[0017] Step 5: Planting and maintaining green vegetation: Install the cantilever prefabricated assembled drainage ditch on the precast beam and cast-in-place concrete slab, and connect the inner side of the long-bag vegetation belt through a plastic hose for drip irrigation.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1) By designing the top cantilever prefabricated assembled drainage ditch, precast beams with reserved grooves are set on the steep rocky high slope, and both ends are supported in the reserved grooves of the precast beams. The cantilever prefabricated assembled drainage ditch is semi-suspended, realizing the sectional assembly of the cantilever prefabricated assembled drainage ditch, achieving the regulated irrigation of water flow, and ensuring the survival rate of the plants in the long-bag vegetation belt.

[0020] 2) By developing the fixing technology of the long-bag vegetation belt with standardized buckles fixed on the slope surface, the long-bag vegetation belt is fixed to the steep rocky high slope through buckle-type anchor rods, enabling the long-bag vegetation belt to fit well with the steep rocky high slope and ensuring the stability of the slope.

[0021] 3) By developing the standardized hanging support technology for slope construction, the operation platforms are installed at different heights of the steel support from top to bottom, facilitating the workers to drill holes in the steep rocky high slope, improving work efficiency, and ensuring work safety.

[0022] 4) The present invention designs a method for the combined treatment of precast and cast-in-place on the slope top surface. The cast-in-place concrete slab and the precast beam are arranged at intervals. One side of the middle part of the cantilever prefabricated assembled drainage ditch is placed on the reserved groove of the cast-in-place concrete slab, being semi-suspended, which reduces costs while ensuring the overall structural strength. Description of the Drawings

[0023] Figure 1 is a schematic cross-section view of the water intercepting vegetation belt ecological slope protection and revegetation system for the steep rocky high slope;

[0024] Figure 2 is a schematic side elevation view of the water intercepting vegetation belt ecological slope protection and revegetation system for the steep rocky high slope;

[0025] Figure 3 is a schematic cross-section view of the connection between the precast beam and the cast-in-place concrete slab;

[0026] Figure 4 is a schematic enlarged view of the operation platform;

[0027] Figure 5 is a schematic enlarged elevation view of the precast beam;

[0028] Figure 6 is a schematic enlarged plan view of the precast beam;

[0029] Figure 7 is a schematic plan view of the installation of the cantilever prefabricated assembled drainage ditch.

[0030] Description of the reference numerals: 1 - Steep rocky high slope, 2 - Slope line, 3 - Cable anchor, 4 - Prefabricated beam, 5 - Cantilever prefabricated assembled drainage ditch, 6 - Embedded threaded rod, 7 - Snap - type anchor rod, 8 - Steel bracket, 9 - Inner column, 10 - Outer column, 11 - Upper cross - beam, 12 - Lower cross - beam, 13 - Operating platform, 14 - Long - bag vegetation belt, 15 - Fixed screw, 16 - Anti - shedding rib plate, 17 - Reserved groove, 18 - Ear plate, 19 - Cast - in - place concrete slab, 20 - Steel reinforcement cage, 21 - Embedded steel bar, 22 - Safety net, 23 - Guardrail, 24 - Cross bar, 25 - Longitudinal bar, 26 - Reserved hole, 27 - Embedded drip irrigation steel pipe. Specific embodiments

[0031] The present invention will be further described below in conjunction with embodiments. The description of the following embodiments is only for helping to understand the present invention. It should be noted that for ordinary persons in the technical field, without departing from the principle of the present invention, several modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0032] Embodiment 1

[0033] As an embodiment, this water - intercepting vegetation - belt ecological slope protection and revegetation system for steep rocky high slopes includes a steep rocky high slope 1, a prefabricated beam 4, a cantilever prefabricated assembled drainage ditch 5, a steel bracket 8, an operating platform 13, and a long - bag vegetation belt 14; the prefabricated beam 4 is fixedly connected to the top of the steep rocky high slope 1 through a cable anchor 3, and a cast - in - place concrete slab 19 is provided between the prefabricated beams 4; the cantilever prefabricated assembled drainage ditch 5 is installed on the prefabricated beam 4 and is provided with a drip irrigation system; the steel bracket 8 is arranged from top to bottom along the steep rocky high slope 1, and the top of the steel bracket 8 is connected to the prefabricated beam 4; the operating platform 13 is installed on the steel bracket 8; the steep rocky high slope 1 is provided with a slope line 2, and the long - bag vegetation belt 14 is adhesively connected to the slope line 2.

[0034] The prefabricated beam 4 is prefabricated in a factory, and is provided with an embedded threaded rod 6, an embedded steel bar 21, and a reserved hole 26, and a reserved groove 17 and an anti - shedding rib plate 16 are provided at the cantilever end; the cable anchor 3 passes through the reserved hole 26 to fix the prefabricated beam 4; the steel reinforcement cage 20 of the cast - in - place concrete slab 19 is welded and fixed to the embedded steel bar 21 of the prefabricated beam 4, and a reserved groove 17 is provided at the position of the slope line 2 of the cast - in - place concrete slab 19.

[0035] As Figure 1As shown in the figure, the steel section support 8 is composed of an inner column 9, an outer column 10, an upper cross beam 11, a lower cross beam 12, an operation platform 13, etc.; the upper cross beam 11 is provided with ear plates 18 and fixed to the embedded threaded rod 6 of the precast beam 4; the lower cross beam 12 is fixed by connecting with the ordinary anchor rod at the bottom of the slope; the operation platform 13 is composed of a safety net 22, a guardrail 23, cross bars 24, longitudinal bars 25, etc., which are arranged in layers. Among them, the cross bars 24 are provided with ear plates 18 and are connected and fixed to the inner column 9 and the outer column 10 of the steel section support 8 through fixed screws 15. The longitudinal bars 25, the guardrail 23, the safety net 22, steel plates or bamboo glue boards are successively arranged above the cross bars 24.

[0036] The operation platform 13 is installed from top to bottom. According to the slope length, the steel section support 8 can be recycled. Workers drill holes for the snap - type anchor rod 7 on the operation platform 13, and the long - bag vegetation belt 14 is fixed by the snap - type anchor rod 7; the snap - type anchor rod 7 is manufactured by welding a V - shaped steel bar at the end of an ordinary anchor rod.

[0037] As Figure 7 shown, the cantilever prefabricated assembled drainage ditch 5 is prefabricated in the factory at the positions where its two - end supports are reserved in the reserved groove 17 of the precast beam 4, and is placed in a semi - suspended state in the reserved groove 17 of the cast - in - place concrete slab 19; the cantilever prefabricated assembled drainage ditch 5 is provided with an embedded drip - irrigation steel pipe 27 connected to a plastic rubber pipe. The plastic rubber pipe is provided with holes for drip irrigation and is located inside the long - bag vegetation belt 14; the embedded drip - irrigation steel pipe 27 of the cantilever prefabricated assembled drainage ditch 5 is usually blocked by a piston for rainwater drainage. In the dry season, the piston can be removed to store water through the cantilever prefabricated assembled drainage ditch 5 and perform drip irrigation through the plastic rubber pipe to ensure the survival rate of the plants in the long - bag vegetation belt 14.

[0038] Embodiment Two

[0039] As another embodiment, this Embodiment Two is proposed on the basis of Embodiment One, a more specific water - intercepting vegetation - belt ecological slope protection and revegetation system for steep rocky high slopes:

[0040] As Figure 6 shown, the precast beam 4 is provided with an embedded threaded rod 6, an embedded steel bar 21 and a reserved hole 26. One end of the precast beam 4 projects cantilever - like from the top of the steep rocky high slope 1, and a reserved groove 17 and an anti - detachment rib plate 16 are provided at the cantilever end; the anchor cable 3 passes through the reserved hole 26 to fix the precast beam 4.

[0041] As Figure 3 shown, the top of the steep rocky high slope 1 is provided with a cast - in - place concrete slab 19, and the cast - in - place concrete slab 19 includes a steel reinforcement cage 20; the steel reinforcement cage 20 is welded and fixed to the embedded steel bar 21 of the precast beam 4, and a reserved groove 17 is provided on one side of the cast - in - place concrete slab 19 close to the slope line 2.

[0042] The steel support 8 includes an inner column 9, an outer column 10, an upper cross beam 11, a lower cross beam 12 and an operation platform 13; an ear plate 18 is provided on the upper cross beam 11, and the ear plate 18 is fixed to the precast beam 4 through a buried threaded rod 6; the lower cross beam 12 is anchored to the bottom of the slope; the operation platform 13 includes a safety net 22, a guardrail 23, a cross bar 24 and a longitudinal bar 25, wherein the cross bar 24 is provided with an ear plate 18, and the ear plate 18 is connected and fixed to the inner column 9 and the outer column 10 through a fixing screw rod 15. The longitudinal bar 25 and the guardrail 23 are sequentially arranged on the upper part of the cross bar 24 from bottom to top, and the safety net 22 is arranged between the guardrails 23.

[0043] The operation platform 13 is installed at different heights of the steel support 8 from top to bottom, and a plurality of operation platforms 13 are arranged according to the slope length; the long bag vegetation belt 14 is fixedly connected to the steep rocky high slope 1 through a snap - type anchor rod 7.

[0044] The snap - type anchor rod 7 includes an anchor rod and a V - shaped steel bar, and the V - shaped steel bar is welded to the end of the anchor rod.

[0045] As Figure 7 As shown, the cantilever prefabricated drainage ditch 5 includes several segments. Both ends of each segment of the cantilever prefabricated drainage ditch 5 are supported in the reserved groove 17 of the precast beam 4. One side of the middle part of the cantilever prefabricated drainage ditch 5 is placed on the reserved groove 17 of the cast - in - place concrete slab 19. A plastic rubber tube is arranged inside the long bag vegetation belt 14, and holes are provided on the plastic rubber tube. The cantilever prefabricated drainage ditch 5 is provided with a buried drip irrigation steel pipe 27, and the buried drip irrigation steel pipe 27 is connected to the plastic rubber tube; a piston is installed on the buried drip irrigation steel pipe 27.

[0046] It should be noted that the parts that are the same or similar to those in Embodiment 1 in this embodiment can be referred to each other and will not be elaborated in this application.

[0047] Embodiment 3

[0048] As another embodiment, on the basis of Embodiment 2, this embodiment 3 proposes a construction method for the water - intercepting vegetation - growing belt ecological slope protection and revegetation system of the steep rocky high slope, and its main construction steps are as follows:

[0049] Step 1: Prefabricated beam processing: The precast beam 4 is prefabricated in the factory, and buried threaded rods 6, buried steel bars 21 and reserved holes 26 are set on it. A reserved groove 17 and an anti - shedding rib plate 16 are set at the cantilever end; the anchor cable 3 passes through the reserved hole 26 to fix the precast beam 4.

[0050] Step 2: Cast - in - place concrete slab construction: The steel reinforcement cage 20 of the cast - in - place concrete slab 19 is welded and fixed to the buried steel bar 21 of the precast beam 4, and a reserved groove 17 is set at the slope line 2 position of the cast - in - place concrete slab 19.

[0051] Step 3. Installation of the steel support: The steel support 8 consists of an inner column 9, an outer column 10, an upper cross beam 11, a lower cross beam 12, an operation platform 13, etc.; an ear plate 18 is provided on the upper cross beam 11 and fixed to the embedded threaded rod 6 of the precast beam 4; the lower cross beam 12 is fixed by connecting with the ordinary anchor rod at the bottom of the slope; the operation platform 13 consists of a safety net 22, a guardrail 23, cross bars 24, longitudinal bars 25, etc., which are arranged in layers. Among them, the cross bar 24 is provided with an ear plate 18 and is connected and fixed to the inner column 9 and the outer column 10 of the steel support 8 through a fixing screw 15. The longitudinal bar 25, the guardrail 23, the safety net 22, steel plates or bamboo plywood are sequentially arranged above the cross bar 24.

[0052] Step 4. Construction of the long-bag vegetation belt: The operation platform 13 is installed from top to bottom. The steel support 8 can be recycled according to the slope length. Workers drill holes for the snap-type anchor rod 7 on the operation platform 13, and the long-bag vegetation belt 14 is fixed by the snap-type anchor rod 7; the snap-type anchor rod 7 is fabricated by welding a V-shaped steel bar at the end of an ordinary anchor rod.

[0053] Step 5. Installation of the cantilever prefabricated drainage ditch and restoration and greening maintenance: The two ends of the cantilever prefabricated drainage ditch 5 are prefabricated in the factory and supported at the position of the reserved groove 17 of the precast beam 4, and are placed in the reserved groove 17 of the cast-in-place concrete slab 19 in a semi-suspended state; the cantilever prefabricated drainage ditch 5 is provided with an embedded drip irrigation steel pipe 27 connected to a plastic rubber hose. The plastic rubber hose is provided with holes for drip irrigation and is located inside the long-bag vegetation belt 14; the embedded drip irrigation steel pipe 27 of the cantilever prefabricated drainage ditch 5 is usually blocked by a piston for rainwater drainage. During the dry season, the piston can be removed to store water through the cantilever prefabricated drainage ditch 5, and drip irrigation can be carried out through the plastic rubber hose to ensure the survival rate of the plants in the long-bag vegetation belt 14.

[0054] It should be noted that the parts that are the same or similar to those in the second embodiment in this embodiment can be referred to each other and will not be described in detail in this application.

[0055] In this specification, each embodiment is described in a progressive manner. The key points of each embodiment are the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.

Claims

1. A water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes, characterized in that, It includes a steep rocky high slope, precast beams, cantilever precast assembled drainage ditches, steel support frames, operation platforms and long-bag vegetation belts; the precast beams are fixedly connected to the top of the steep rocky high slope by anchor cables, and cast-in-place concrete slabs are arranged between the precast beams; the cantilever precast assembled drainage ditches are installed on the precast beams and are provided with drip irrigation systems; the steel support frames are arranged from top to bottom along the steep rocky high slope, and the top ends of the steel support frames are connected to the precast beams; the operation platforms are installed on the steel support frames; the steep rocky high slope is provided with a slope line, and the long-bag vegetation belts are adhesively connected to the slope line; The operation platforms are installed at different heights of the steel support frames from top to bottom, and a plurality of operation platforms are provided according to the slope length; the long-bag vegetation belts are fixedly connected to the steep rocky high slope through snap-type anchor rods, and the snap-type anchor rods include anchor rods and V-shaped steel bars, and the V-shaped steel bars are welded to the ends of the anchor rods; The cantilever precast assembled drainage ditches include several segments, and both ends of each cantilever precast assembled drainage ditch segment are supported in the reserved grooves of the precast beams. One side of the middle part of the cantilever precast assembled drainage ditch is placed on the reserved groove of the cast-in-place concrete slab. A plastic rubber tube is arranged inside the long-bag vegetation belt, and holes are arranged on the plastic rubber tube. The cantilever precast assembled drainage ditch is provided with a pre-buried drip irrigation steel pipe, and the pre-buried drip irrigation steel pipe is connected to the plastic rubber tube; a piston is installed on the pre-buried drip irrigation steel pipe; The precast beams are provided with pre-buried threaded rods, pre-buried steel bars and reserved holes. One end of the precast beam projects out from the top of the steep rocky high slope in a cantilever manner, and a first reserved groove and an anti-detachment rib plate are arranged at the cantilever end; the anchor cables pass through the reserved holes to fix the precast beams; the top of the steep rocky high slope is provided with a cast-in-place concrete slab, and the cast-in-place concrete slab includes a steel reinforcement cage; the steel reinforcement cage is welded and fixed to the pre-buried steel bars of the precast beam, and a second reserved groove is arranged on one side of the cast-in-place concrete slab close to the slope line; The construction method of the water intercepting and vegetation planting ecological slope protection and revegetation system for the steep rocky high slope includes the following steps: Step 1: The precast beams are fixedly connected to the steep rocky high slope through anchor cables; Step 2: Construction of the cast-in-place concrete slab: The steel reinforcement cage is welded and fixed to the pre-buried steel bars, the cast-in-place concrete slab is poured, and reserved grooves are arranged at the slope line position; Step 3: Installation of the steel support frames: The top ends of the steel support frames are fixed to the precast beams, and the bottom ends are anchored to the slope bottom; operation platforms are arranged at different heights of the steel support frames; Step 4: Construction of the long-bag vegetation belts on the operation platforms: The long-bag vegetation belts are fixed to the steep rocky high slope through snap-type anchor rods; Step 5: Planting and maintenance of green vegetation: Install the cantilever precast assembled drainage ditches on the precast beams and the cast-in-place concrete slabs, and conduct drip irrigation by connecting the inside of the long-bag vegetation belts through plastic rubber tubes.

2. The water intercepting vegetation planting belt ecological slope protection and revegetation system for steep rocky high slopes according to claim 1, wherein The profiled steel support includes an inner column, an outer column, an upper cross beam, a lower cross beam and an operation platform; ear plates are provided on the upper cross beam, and the ear plates are fixed to the precast beam through embedded threaded rods; the lower cross beam is anchored to the bottom of the slope; the operation platform includes a safety net, a guardrail, cross bars and longitudinal bars, wherein ear plates are provided on the cross bars, and the ear plates are connected and fixed to the inner column and the outer column through fixing screws. Longitudinal bars and guardrails are sequentially arranged on the upper part of the cross bar from bottom to top, and a safety net is arranged between the guardrails.

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