CN113293776A - Prefabricated lattice beam structure for ecological slope protection and construction method - Google Patents
Prefabricated lattice beam structure for ecological slope protection and construction method Download PDFInfo
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- CN113293776A CN113293776A CN202110518457.1A CN202110518457A CN113293776A CN 113293776 A CN113293776 A CN 113293776A CN 202110518457 A CN202110518457 A CN 202110518457A CN 113293776 A CN113293776 A CN 113293776A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/20—Securing of slopes or inclines
- E02D17/205—Securing of slopes or inclines with modular blocks, e.g. pre-fabricated
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
- E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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- General Life Sciences & Earth Sciences (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a prefabricated lattice beam structure for ecological slope protection and a construction method thereof. The lattice beam unit bodies and the connecting platforms are prefabricated in a factory, and only assembly is needed in site construction, so that the concrete pouring and maintaining time is saved, and the construction period is shortened. According to the invention, the adjacent lattice beam unit bodies are connected through the connecting platform, and the lattice beam unit bodies are connected with the connecting platform through the fixing structure, so that the integrity of the whole lattice beam is greatly improved, and the fixing structure is simple to construct.
Description
Technical Field
The invention relates to the field of slope support and ecological slope protection, in particular to a prefabricated lattice beam structure for ecological slope protection and a construction method.
Background
A large number of artificial slopes are formed in engineering construction, a series of environmental problems such as water and soil loss, landslide, debris flow and the like are easily caused, so that slope support is needed, and the slope support mode is divided into engineering protection and ecological protection. Engineering protection has great negative impact on the environment and influences the attractiveness; ecological protection needs to increase soil layer thickness, and the soil layer is probably because dead weight slump has increased the risk of landslide. Therefore, the slope protection method combining engineering slope protection with ecological slope protection can not only ensure the stability of the side slope, but also green the environment. The lattice beams are fixed on the side slope through the anchor cable structure, soil is sprayed and planted in the lattice beam frame, and plants are planted in the lattice beam frame, so that the organic combination of side slope structural protection and environmental greening is realized.
In various slope retaining and protecting measures, the anchor rod lattice beam support improves the stability of the slope by means of the joint work of the lattice beam, the reinforcing steel bars and the anchor rods, and is widely applied due to the advantages of convenience in construction, good supporting effect, attractiveness and the like. However, the existing anchor rod lattice beam support system has the following disadvantages:
1. when the cast-in-place lattice beam is constructed, the construction process is complicated because concrete needs to be cast and maintained in situ, so that the construction period is long and the quality is difficult to guarantee;
2. the prefabricated lattice beam is formed by splicing factory prefabricated lattice unit bodies, and the unit bodies are complex in connection and poor in integrity;
3. the anchor rod lattice beam has great negative influence on the environment and is not beneficial to ecological restoration.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a prefabricated lattice beam structure for ecological slope protection and a construction method, and the prefabricated lattice beam structure has the characteristics of shortening the construction period, being simple in construction, improving the structural integrity and quickly restoring the ecology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a prefabricated lattice beam structure for ecological slope protection comprises lattice beam unit bodies, connecting platforms, fixing structures and anchor cable structures, wherein the lattice beam unit bodies are arranged according to rectangular grids of a side slope, namely the centers of the lattice beam unit bodies are fixed on the side slope through the anchor cable structures, the end parts of the lattice beam unit bodies are fixed on the connecting platforms through the fixing structures, the connecting platforms are fixed on the side slope through the anchor cable structures, and the connecting platforms connect the end parts of the adjacent lattice beam unit bodies into a whole;
the rectangular grid arrangement rule of the lattice beam unit bodies is as follows: in the length direction of the side slope, the central point of the second row of lattice beam unit bodies is positioned on the central line between the first row of lattice beam unit bodies and the third row of lattice beam unit bodies, the central point of the third row of lattice beam unit bodies is positioned on the central line between the second row of lattice beam unit bodies and the fourth row of lattice beam unit bodies, and so on; in the width direction of the side slope, the center point of the second row of lattice beam unit bodies is positioned on the center line between the first row and the third row of lattice beam unit bodies, the center point of the third row of lattice beam unit bodies is positioned on the center line between the second row and the fourth row of lattice beam unit bodies, and so on;
the lattice beam unit bodies are prefabricated assembled lattice beam unit bodies, and the connecting platform is a prefabricated connecting platform;
the lattice beam unit bodies comprise internal unit bodies, edge unit bodies and corner unit bodies, wherein the internal unit bodies are positioned inside the rectangular grid, the edge unit bodies are positioned around the rectangular grid, and the corner unit bodies are positioned at four corners of the rectangular grid; the inner unit bodies comprise square bases A and cross beams, the edge unit bodies comprise square bases A and T-shaped beams, and the corner unit bodies comprise square bases A and L-shaped beams; four tip of cross type roof beam respectively are equipped with two perpendicular reinforcing bar pore A that link up, and the three tip of T style of calligraphy roof beam respectively is equipped with two perpendicular reinforcing bar pore A that link up, and two tip of L style of calligraphy roof beam respectively are equipped with two perpendicular reinforcing bar pore A that link up, and the tip both sides of every roof beam all are equipped with the reinforcing bar couple, and lattice beam cell cube center has preformed hole groove A for set up the anchor rope structure.
The connecting platform comprises a square base B and a square beam, four sides of the square base B are respectively provided with two vertically-communicated steel bar hole channels B, and a preformed hole groove B is formed in the center of the connecting platform and used for arranging an anchor cable structure.
The fixed structure comprises ribbed steel bars and cast-in-place concrete. The fixed structure connects the end part of the lattice beam unit body and the connecting platform into a whole through the reinforcing steel bar pore passage A and the reinforcing steel bar pore passage B.
The anchor cable structure comprises a prestressed anchor cable, an anchor head and a steel base plate; the prestressed anchor cable consists of a tension section, a free section and an anchoring section, wherein the tension section sequentially penetrates through an anchor head, a steel base plate, a lattice beam unit body or a connecting platform; the free section penetrates through the reinforced rock-soil body, the free section is wrapped by the plastic sleeve, and the anchoring section is buried in the slope rock stratum.
Furthermore, the square base A of the lattice beam unit body is buried in a slope rock stratum. The square base B of the connecting platform is buried in the slope rock stratum.
Furthermore, the size of the square base B of the connecting platform is larger than that of the square base A of the lattice beam unit body.
Furthermore, after the lattice beam unit bodies are installed, foreign soil and plant seeds are sprayed in the lattices formed by the lattice beam unit bodies.
Furthermore, the steel bar pore channels on the connecting platform at the edge of the side slope and not overlapped with the lattice beam unit bodies are directly filled with concrete.
Furthermore, at the lap joint of the lattice beam unit bodies and the connecting platform, gaps of 2cm are reserved between the end parts of the lattice beam unit bodies and the square beams of the connecting platform and are used as water drainage holes and channels for communicating an irrigation system.
A construction method of a prefabricated lattice beam structure for ecological slope protection comprises the following steps:
the method comprises the following steps: excavating a side slope, finishing the slope surface of the side slope, and respectively marking the positions of the lattice beam unit bodies and the connecting platforms;
step two: excavating grooves in the centers of the lattice beam unit bodies and the connecting platform, wherein the size of each excavating groove is correspondingly matched with the size of a square base A of each lattice beam unit body and the size of a square base B of the connecting platform;
step three: drilling anchor holes at corresponding positions of the side slope by using a drilling machine, and cleaning the holes by using a high-pressure air gun;
step four: laying an anchor cable structure according to a construction drawing, and installing a prestressed anchor cable in an anchor hole for grouting to be strong;
step five: hoisting the connecting platform to a preset position by using hoisting equipment, burying a square base B of the connecting platform in a groove of a side slope, arranging a steel backing plate, penetrating the other end of the prestressed anchor cable through the connecting platform and the steel backing plate through a reserved hole groove B, installing an anchor head, completing tensioning and fastening, wrapping the anchor head by cement mortar to form a protective layer, and completing anchor sealing;
step six: hoisting the lattice beam unit bodies to a preset position by using hoisting equipment, burying a square base A of each lattice beam unit body in a groove of a side slope, and aligning a reinforcing steel bar pore channel A at the end part of each lattice beam unit body with a reinforcing steel bar pore channel B of a connecting platform; arranging a steel backing plate, penetrating the other end of the prestressed anchor cable through the lattice beam unit body and the steel backing plate through the reserved hole groove A, installing an anchor head, completing tensioning and fastening, wrapping the anchor head with cement mortar to form a protective layer, and completing anchor sealing;
step seven: and fixing the ribbed steel bars at the centers of the steel bar pore canal A and the steel bar pore canal B, and pouring concrete materials to ensure that the concrete materials submerge the top of the ribbed steel bars.
Step eight: and (3) laying galvanized wire nets in the frame formed by the lattice beam unit bodies, tensioning and smoothly laying the galvanized wire nets, and locking the galvanized wire nets on the steel bar hooks by using the wires.
Step nine: spraying the foreign soil on the lattice beam unit bodies by using a spraying machine to form a lattice, wherein the spraying thickness is 3-5cm higher than that of a galvanized iron wire net, spraying the bottom layer of the matrix, air-drying, and spraying the surface layer of the seeds.
Compared with the prior art, the invention has the following beneficial effects:
1. because the lattice beam unit bodies and the connecting platforms are prefabricated in a factory, only assembly is needed in site construction, concrete pouring and maintenance time is saved, and the construction period is shortened;
2. according to the invention, the adjacent lattice beam unit bodies are connected through the connecting platform, and the lattice beam unit bodies are connected with the connecting platform through the fixing structure, so that the integrity of the whole lattice beam is greatly improved, and the fixing structure is simple to construct;
3. the base of the lattice beam unit body and the base of the connecting platform are buried in the slope rocks, the slope surface is divided into regular small blocks, the soil removal spray seeding and the plant planting are facilitated, the plants are planted in the lattices formed by the lattice beam unit body, and the greening effect can be achieved.
Drawings
Figure 1 is a schematic plan view of a prefabricated lattice beam structure.
Fig. 2 is a schematic view of a lattice beam unit cell.
Fig. 3 is a schematic view of a connection platform.
Fig. 4 is a schematic diagram of the lap joint of the lattice beam unit bodies and the connecting platforms.
Fig. 5 is a plan view of the fixing structure.
Fig. 6 is an elevational view of the securing structure.
Fig. 7 is a schematic view of a cable bolt structure of a lattice beam unit body.
Fig. 8 is a schematic view of a cable bolt configuration for connecting platforms.
Fig. 9 is a schematic view of the spraying of the alien soil in the sash formed by the lattice beam unit bodies.
Fig. 10 is an effect view after completion of construction.
In the figure: 1. lattice beam unit body, 2, connection platform, 3, fixed knot constructs, 4, anchor rope structure, 5, square base A, 6, cross type roof beam, 7, reinforcing bar pore canal A, 8, reinforcing bar couple, 9, preformed hole groove A, 10, square base B, 11, square roof beam, 12, reinforcing bar pore canal B, 13, preformed hole groove B, 14, ribbed steel bar, 15, cast-in-place concrete material, 16, stretch-draw section, 17, free section, 18, anchor section, 19, steel backing plate, 20, anchor head, 21, protective layer, 22, galvanized iron wire net, 23, matrix bottom layer, 24, seed top layer.
Detailed Description
The invention is further described below with reference to the accompanying drawings. As shown in fig. 1-10, a prefabricated lattice beam structure for ecological slope protection comprises lattice beam unit bodies 1, connecting platforms 2, fixing structures 3 and anchor cable structures 4, wherein the lattice beam unit bodies 1 are arranged according to rectangular grids of a side slope, namely, the centers of the lattice beam unit bodies 1 are fixed on the side slope through the anchor cable structures 4, the end parts of the lattice beam unit bodies 1 are fixed on the connecting platforms 2 through the fixing structures 3, the connecting platforms 2 are fixed on the side slope through the anchor cable structures 4, and the connecting platforms 2 connect the end parts of the adjacent lattice beam unit bodies 1 into a whole;
the rectangular grid arrangement rule of the lattice beam unit bodies 1 is as follows: in the length direction of the side slope, the central point of the second row of lattice beam unit bodies 1 is positioned on the central line between the first row of lattice beam unit bodies 1 and the third row of lattice beam unit bodies 1, the central point of the third row of lattice beam unit bodies 1 is positioned on the central line between the second row of lattice beam unit bodies 1 and the fourth row of lattice beam unit bodies 1, and so on; in the width direction of the side slope, the central point of the second row of the lattice beam unit bodies 1 is positioned on the central line between the first row and the third row of the lattice beam unit bodies 1, the central point of the third row of the lattice beam unit bodies 1 is positioned on the central line between the second row and the fourth row of the lattice beam unit bodies 1, and so on;
the lattice beam unit bodies 1 are prefabricated assembled lattice beam unit bodies, and the connecting platforms 2 are prefabricated connecting platforms;
the lattice beam unit bodies 1 comprise internal unit bodies, edge unit bodies and corner unit bodies, wherein the internal unit bodies are positioned inside the rectangular grid, the edge unit bodies are positioned on the periphery of the rectangular grid, and the corner unit bodies are positioned at the four corners of the rectangular grid; the internal unit bodies comprise square bases A5 and cross beams 6, the edge unit bodies comprise square bases A5 and T-shaped beams, and the corner unit bodies comprise square bases A5 and L-shaped beams; four ends of the cross-shaped beam 6 are respectively provided with two vertically through reinforcing steel bar pore canals A7, three ends of the T-shaped beam are respectively provided with two vertically through reinforcing steel bar pore canals A7, two ends of the L-shaped beam are respectively provided with two vertically through reinforcing steel bar pore canals A7, two sides of the end of each beam are respectively provided with a reinforcing steel bar hook 8, and the center of the lattice beam unit body 1 is provided with a reserved hole groove A9 for arranging the anchor cable structure 4.
The connecting platform 2 comprises a square base B10 and a square beam 11, four sides of the square base B10 are respectively provided with two vertically-through steel bar pore passages B12, and the center of the connecting platform 2 is provided with a preformed hole groove B13 for arranging the anchor cable structure 4.
The fixed structure 3 comprises ribbed steel bars 14 and cast-in-place concrete 15. The fixed structure 3 connects the end part of the lattice beam unit body 1 and the connecting platform 2 into a whole through a reinforcing steel bar duct A7 and a reinforcing steel bar duct B12.
The anchor cable structure 4 comprises a prestressed anchor cable, an anchor head 20 and a steel backing plate 19; the prestressed anchor cable consists of a tension section 16, a free section 17 and an anchoring section 18, wherein the tension section 16 sequentially penetrates through an anchor head 20, a steel backing plate 19, a lattice beam unit body 1 or a connecting platform 2; the free section 17 penetrates through the reinforced rock-soil body, the free section 17 wraps the plastic sleeve, and the anchoring section 18 is buried in the slope rock stratum.
Furthermore, the square base A5 of the lattice beam unit body 1 is buried in a slope rock stratum. The square base B10 of the connecting platform 2 is buried in the slope rock stratum.
Further, the size of the square base B10 of the connecting platform 2 is larger than that of the square base a5 of the lattice beam unit body 1.
Further, after the lattice beam unit bodies 1 are installed, foreign soil and plant seeds are sprayed in the lattices formed by the lattice beam unit bodies 1.
Further, the steel bar pore channels of the lattice beam unit bodies 1 which are not lapped on the connecting platform 2 at the edge of the side slope are directly filled with concrete.
Furthermore, at the lap joint of the lattice beam unit body 1 and the connecting platform 2, a gap of 2cm is reserved between the end part of the lattice beam unit body 1 and the square beam 11 of the connecting platform 2 and is used as a water drainage hole and a channel for communicating an irrigation system.
A construction method of a prefabricated lattice beam structure for ecological slope protection comprises the following steps:
the method comprises the following steps: excavating a side slope, finishing the slope surface of the side slope, and respectively marking the positions of the lattice beam unit bodies 1 and the connecting platforms 2;
step two: excavating grooves in the centers of the lattice beam unit bodies 1 and the connecting platforms 2, wherein the size of each excavated groove is correspondingly matched with the size of a square base A5 of each lattice beam unit body 1 and the size of a square base B10 of each connecting platform 2;
step three: drilling anchor holes at corresponding positions of the side slope by using a drilling machine, and cleaning the holes by using a high-pressure air gun;
step four: arranging an anchor cable structure 4 according to a construction drawing, and installing a prestressed anchor cable in an anchor hole for grouting to be strong;
step five: hoisting the connecting platform 2 to a preset position by using hoisting equipment, burying a square base B10 of the connecting platform 2 in a groove of a side slope, arranging a steel backing plate 19, penetrating the other end of the prestressed anchor cable through the connecting platform 2 and the steel backing plate 19 through a reserved hole groove B13, installing an anchor head 20, completing tensioning and fastening, wrapping the anchor head 20 with cement mortar to form a protective layer 21, and completing anchor sealing;
step six: hoisting the lattice beam unit body 1 to a preset position by using hoisting equipment, burying a square base A5 of the lattice beam unit body 1 in a groove of a side slope, and aligning a steel bar pore channel A7 at the end part of the lattice beam unit body 1 with a steel bar pore channel B12 of the connecting platform 2; arranging a steel backing plate 19, penetrating the other end of the prestressed anchor cable through the lattice beam unit body 1 and the steel backing plate 19 through a reserved hole groove A9, installing an anchor head 20, completing tensioning and fastening, wrapping the anchor head 20 with cement mortar to form a protective layer 21, and completing anchor sealing;
step seven: the ribbed reinforcing steel bar 14 is fixed in the centers of the reinforcing steel bar duct A7 and the reinforcing steel bar duct B12, and concrete is poured into the reinforcing steel bar duct A and the reinforcing steel bar duct B12, so that the concrete is enabled to submerge the top of the ribbed reinforcing steel bar 14.
Step eight: and (3) laying a galvanized wire mesh 22 in the lattice formed by the lattice beam unit bodies 1, tensioning and smoothly laying the galvanized wire mesh, and locking the galvanized wire mesh 22 on the steel bar hook 8 by using wires.
Step nine: spraying the foreign soil on the lattice beam unit bodies 1 by using a spraying machine to form a lattice, wherein the spraying thickness is 223-5cm higher than that of a galvanized iron wire net, firstly spraying a substrate bottom layer 23, and spraying a seed surface layer 24 after air drying.
The present invention is not limited to the embodiment, and any equivalent idea or change within the technical scope of the present invention is to be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a prefabricated lattice beam structure for ecological bank protection which characterized in that: the lattice beam unit bodies (1) are arranged according to rectangular grids of a side slope, namely the centers of the lattice beam unit bodies (1) are fixed on the side slope through the anchor cable structures (4), the end parts of the lattice beam unit bodies (1) are fixed on the connecting platform (2) through the fixing structures (3), the connecting platform (2) is fixed on the side slope through the anchor cable structures (4), and the connecting platform (2) connects the end parts of the adjacent lattice beam unit bodies (1) into a whole;
the rectangular grid arrangement rule of the lattice beam unit bodies (1) is as follows: in the length direction of the side slope, the central point of the second row of lattice beam unit bodies (1) is positioned on the central line between the first row of lattice beam unit bodies and the third row of lattice beam unit bodies (1), the central point of the third row of lattice beam unit bodies (1) is positioned on the central line between the second row of lattice beam unit bodies and the fourth row of lattice beam unit bodies (1), and so on; in the width direction of the slope, the central point of the second row of lattice beam unit bodies (1) is positioned on the central line between the first row and the third row of lattice beam unit bodies (1), the central point of the third row of lattice beam unit bodies (1) is positioned on the central line between the second row and the fourth row of lattice beam unit bodies (1), and so on;
the lattice beam unit bodies (1) are prefabricated assembled lattice beam unit bodies, and the connecting platforms (2) are prefabricated connecting platforms;
the lattice beam unit bodies (1) comprise internal unit bodies, edge unit bodies and corner unit bodies, wherein the internal unit bodies are positioned inside the rectangular grid, the edge unit bodies are positioned on the periphery of the rectangular grid, and the corner unit bodies are positioned at the four corners of the rectangular grid; the inner unit bodies comprise square bases A (5) and cross beams (6), the edge unit bodies comprise square bases A (5) and T-shaped beams, and the corner unit bodies comprise square bases A (5) and L-shaped beams; four end parts of a cross beam (6) are respectively provided with two vertically through reinforcing steel bar pore channels A (7), three end parts of a T-shaped beam are respectively provided with two vertically through reinforcing steel bar pore channels A (7), two end parts of an L-shaped beam are respectively provided with two vertically through reinforcing steel bar pore channels A (7), two sides of the end part of each beam are respectively provided with a reinforcing steel bar hook (8), and the center of a lattice beam unit body (1) is provided with a reserved hole groove A (9) for arranging an anchor cable structure (4);
the connecting platform (2) comprises a square base B (10) and a square beam (11), four sides of the square base B (10) are respectively provided with two vertically-through reinforcing steel bar pore passages B (12), and the center of the connecting platform (2) is provided with a preformed hole groove B (13) for arranging an anchor cable structure (4);
the fixed structure (3) comprises ribbed steel bars (14) and cast-in-place concrete (15); the fixed structure (3) connects the end part of the lattice beam unit body (1) and the connecting platform (2) into a whole through a reinforcing steel bar pore passage A (7) and a reinforcing steel bar pore passage B (12);
the anchor cable structure (4) comprises a prestressed anchor cable, an anchor head (20) and a steel base plate (19); the prestressed anchor cable consists of a tension section (16), a free section (17) and an anchoring section (18), wherein the tension section (16) sequentially penetrates through an anchor head (20), a steel base plate (19), a lattice beam unit body (1) or a connecting platform (2); the free section (17) penetrates through the reinforced rock-soil body, the free section (17) wraps the plastic sleeve, and the anchoring section (18) is buried in the slope rock stratum.
2. The prefabricated lattice beam structure for ecological slope protection according to claim 1, wherein: the square base A (5) of the lattice beam unit body (1) is buried in a side slope rock stratum; the square base B (10) of the connecting platform (2) is buried in a side slope rock stratum.
3. The prefabricated lattice beam structure for ecological slope protection according to claim 1, wherein: the size of the square base B (10) of the connecting platform (2) is larger than that of the square base A (5) of the lattice beam unit body (1).
4. The prefabricated lattice beam structure for ecological slope protection according to claim 1, wherein: after the lattice beam unit bodies (1) are installed, foreign soil and plant seeds are sprayed in the lattices formed by the lattice beam unit bodies (1).
5. The prefabricated lattice beam structure for ecological slope protection according to claim 1, wherein: and the steel bar pore channels on the connecting platform (2) positioned at the edge of the side slope and not overlapped with the lattice beam unit bodies (1) are directly filled with concrete by pouring.
6. The prefabricated lattice beam structure for ecological slope protection according to claim 1, wherein: and at the lap joint of the lattice beam unit body (1) and the connecting platform (2), a gap of 2cm is reserved between the end part of the lattice beam unit body (1) and the square beam (11) of the connecting platform (2) and is used as a passage for a water drainage hole and a communicated irrigation system.
7. A construction method of a prefabricated lattice beam structure for ecological slope protection is characterized in that: the method comprises the following steps:
the method comprises the following steps: excavating a side slope, finishing the slope surface of the side slope, and respectively marking the positions of the lattice beam unit bodies (1) and the connecting platforms (2);
step two: excavating grooves in the centers of the lattice beam unit bodies (1) and the connecting platforms (2), wherein the sizes of the excavated grooves are correspondingly matched with the sizes of square bases A (5) of the lattice beam unit bodies (1) and square bases B (10) of the connecting platforms (2);
step three: drilling anchor holes at corresponding positions of the side slope by using a drilling machine, and cleaning the holes by using a high-pressure air gun;
step four: laying an anchor cable structure (4) according to a construction drawing, and installing a prestressed anchor cable in an anchor hole for grouting to be strong;
step five: hoisting the connecting platform (2) to a preset position by using hoisting equipment, burying a square base B (10) of the connecting platform (2) in a groove of a side slope, arranging a steel backing plate (19), penetrating the other end of the prestressed anchor cable through the connecting platform (2) and the steel backing plate (19) through a reserved hole groove B (13), installing an anchor head (20) and completing tensioning and fastening, wrapping the anchor head (20) with cement mortar to form a protective layer (21), and completing anchor sealing;
step six: hoisting the lattice beam unit body (1) to a preset position by using hoisting equipment, burying a square base A (5) of the lattice beam unit body (1) in a groove of a side slope, and aligning a reinforcing steel bar pore channel A (7) at the end part of the lattice beam unit body (1) with a reinforcing steel bar pore channel B (12) of the connecting platform (2); arranging a steel backing plate (19), penetrating the other end of the prestressed anchor cable through the lattice beam unit body (1) and the steel backing plate (19) through a reserved hole groove A (9), installing an anchor head (20) and completing tensioning and fastening, and wrapping the anchor head (20) with cement mortar to form a protective layer (21) to complete anchor sealing;
step seven: fixing the ribbed steel bars (14) at the centers of the steel bar pore canal A (7) and the steel bar pore canal B (12), and pouring concrete materials to ensure that the concrete materials submerge the top of the ribbed steel bars (14);
step eight: a galvanized wire netting (22) is laid in the lattice formed by the lattice beam unit bodies (1), tensioned and laid smoothly, and the galvanized wire netting (22) is locked on the steel bar hook (8) by wires;
step nine: spraying the foreign soil on the lattice beam unit bodies (1) by using a spraying machine to form a lattice, wherein the spraying thickness is 3-5cm higher than that of a galvanized wire mesh (22), spraying a matrix bottom layer (23), and spraying a seed surface layer (24) after air drying.
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| CN207672581U (en) * | 2017-10-31 | 2018-07-31 | 苏交科集团股份有限公司 | A kind of surface of a wound restoration of the ecosystem structure that sowing combines |
| CN109339072A (en) * | 2018-11-12 | 2019-02-15 | 中国十七冶集团有限公司 | A kind of highway engineering highly weathered rock protecting slope ecology method |
| CN109356173A (en) * | 2018-10-22 | 2019-02-19 | 中铁二院工程集团有限责任公司 | A kind of pin-connected panel anchor bolt frame girder construction and its construction method |
| CN109648696A (en) * | 2019-01-02 | 2019-04-19 | 深圳市路桥建设集团有限公司 | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method |
| CN110359452A (en) * | 2019-06-18 | 2019-10-22 | 兰州理工大学 | A kind of nodal-connection components, frame pre-stress cable bolting structure and construction method |
| CN110565655A (en) * | 2019-05-17 | 2019-12-13 | 中铁十七局集团第二工程有限公司 | frame beam unit for slope reinforcement and assembled frame beam |
| CN111270691A (en) * | 2020-03-20 | 2020-06-12 | 四川省第四建筑有限公司 | Side slope prefabricated frame lattice beam structure and construction method |
| CN111910661A (en) * | 2020-09-07 | 2020-11-10 | 辽宁工程技术大学 | Prefabricated alternate tooth whisker lattice and anchor cable structure and construction method thereof |
| CN111945748A (en) * | 2020-06-29 | 2020-11-17 | 大连大学 | Green and environment-friendly prefabricated fast-assembling lattice beam and construction method |
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| CN107030874A (en) * | 2017-04-20 | 2017-08-11 | 深圳市路桥建设集团有限公司 | Precast lattice beam for slope reinforcement and preparation method thereof and construction method |
| CN207672581U (en) * | 2017-10-31 | 2018-07-31 | 苏交科集团股份有限公司 | A kind of surface of a wound restoration of the ecosystem structure that sowing combines |
| CN109356173A (en) * | 2018-10-22 | 2019-02-19 | 中铁二院工程集团有限责任公司 | A kind of pin-connected panel anchor bolt frame girder construction and its construction method |
| CN109339072A (en) * | 2018-11-12 | 2019-02-15 | 中国十七冶集团有限公司 | A kind of highway engineering highly weathered rock protecting slope ecology method |
| CN109648696A (en) * | 2019-01-02 | 2019-04-19 | 深圳市路桥建设集团有限公司 | Side slope precast lattice beam of reinforcing bar connection and preparation method thereof and construction method |
| CN110565655A (en) * | 2019-05-17 | 2019-12-13 | 中铁十七局集团第二工程有限公司 | frame beam unit for slope reinforcement and assembled frame beam |
| CN110359452A (en) * | 2019-06-18 | 2019-10-22 | 兰州理工大学 | A kind of nodal-connection components, frame pre-stress cable bolting structure and construction method |
| CN111270691A (en) * | 2020-03-20 | 2020-06-12 | 四川省第四建筑有限公司 | Side slope prefabricated frame lattice beam structure and construction method |
| CN111945748A (en) * | 2020-06-29 | 2020-11-17 | 大连大学 | Green and environment-friendly prefabricated fast-assembling lattice beam and construction method |
| CN111910661A (en) * | 2020-09-07 | 2020-11-10 | 辽宁工程技术大学 | Prefabricated alternate tooth whisker lattice and anchor cable structure and construction method thereof |
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