CN212104170U - Retaining wall structure system applied to high fill roadbed - Google Patents
Retaining wall structure system applied to high fill roadbed Download PDFInfo
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- CN212104170U CN212104170U CN201922424622.8U CN201922424622U CN212104170U CN 212104170 U CN212104170 U CN 212104170U CN 201922424622 U CN201922424622 U CN 201922424622U CN 212104170 U CN212104170 U CN 212104170U
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- pull rod
- retaining wall
- rib
- rib post
- prestressed
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Abstract
The utility model discloses a be applied to barricade structure system of high fill road bed, including rib post, anchor plate, fender apron, prestressing force pull rod, rib post basis, road surface and banket, the bottom on road surface is buried and is filled up, the equal fixedly connected with rib post basis in bottom of both sides of banket, the top fixedly connected with rib post on rib post basis. The utility model discloses a rib post, the anchor plate, the retaining plate, the prestressing force pull rod, rib post basis, the pull rod anchor head, unbonded epoxy coating steel strand wires, the cooperation of plastic corrugated pipe and mud jacking material is used, it is big because of self structural dimension to have solved traditional retaining wall, area is big, the economic nature is relatively poor and backfill requires shortcomings such as high, can be applicable to the road bed section that the retaining wall is highly greater than twelve meters, can effectively degrade the stress on retaining wall basis simultaneously, the not high requirement of bearing capacity to the retaining wall ground, the range of application is wider.
Description
Technical Field
The utility model relates to a road bed engineering technical field is filled to municipal administration height specifically is a barricade structure system of road bed is filled to height is applied to.
Background
Along with the continuous development of cities, the requirement of urban development on the utilization rate of land parcels is continuously improved, existing ditches in the cities cannot meet the future development requirement of the cities, unreasonable ditches seriously restrict the traveling of surrounding residents, the overall development of the area is influenced, the land around the ditches is conveniently and comprehensively utilized, the existing ditches need to be refilled, a new road network is planned by combining the existing road network of the area, the development space of the area can be effectively improved, and the traveling of people is facilitated.
Fill road bed and usually can relate to retaining wall, traditional retaining wall adopts gravity type more, counterfort, retaining wall such as sheet pile formula, the majority adopts reinforced concrete structure, traditional retaining wall is because of self structure size is big, area is big, the economic nature is relatively poor and return the high shortcoming of retaining wall requirement, be unsuitable for the road bed section that retaining wall height is greater than twelve meters, and when the basis was located weak ground, because of traditional retaining wall is higher to the requirement of basis bearing capacity, the degree of difficulty and the expense that lead to the ground to handle are great, seriously restrict its application scope.
Traditional retaining wall is not applicable to some special district because of self characteristics, to this problem, under the prerequisite that satisfies structure safety, should select as far as possible retaining wall that economic nature, durability and filler require etc. have the advantage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to barricade structure system of high fill road bed, possess structure safety, the good and advantage that the cost is low of durability, solved traditional retaining wall because of self structure size big, area is big, the economic nature is relatively poor and return retaining wall and require shortcomings such as high, can be applicable to the road bed section that retaining wall highly is greater than twelve meters, can effectively degrade the stress on retaining wall basis simultaneously, it is not high to require retaining wall foundation bearing capacity, the range of application is wider.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a be applied to barricade structure system of high fill road bed, includes rib post, anchor plate, keeps off native board, prestressing force pull rod, rib post basis, road surface and banket, the bottom landfill on road surface has the landfill, the equal fixedly connected with rib post basis in bottom of the both sides of banket, the top fixedly connected with rib post on rib post basis, fixedly connected with keeps off the native board on the rib post, the inside of banket is provided with the anchor plate, through prestressing force pull rod fixed connection between anchor plate and the rib post, also through prestressing force pull rod fixed connection between two rib posts.
Preferably, the right side fixedly connected with anticollision barrier at the top on road surface, it all is located anticollision barrier's below to keep off native board and rib post.
Preferably, both sides of the prestressed pull rod are fixedly connected with pull rod anchor heads, and the pull rod anchor heads are fixed on one side of the rib columns.
Preferably, the prestress pull rod comprises a plastic corrugated pipe, an unbonded epoxy coating steel strand is arranged in an inner cavity of the plastic corrugated pipe, and a pressure slurry is filled between the unbonded epoxy coating steel strand and the plastic corrugated pipe.
Preferably, the rib columns are rectangular in cross section, the size of the cross section is 0.5x0.7m, one rib column is arranged at intervals of 2.5m, the rib columns are prefabricated parts or cast in place, pull rod channels are reserved during casting, and the diameter of each channel is larger than that of each prestressed pull rod.
Preferably, the anchor plate is a rectangular reinforced concrete precast plate, and a pull rod hole is reserved in advance when the anchor plate is precast.
Preferably, the retaining plate is a rectangular reinforced concrete precast slab, the length of the lap joint of the retaining plate and the rib column is 0.15m, two hoisting holes with the diameter of 6cm are formed in a single precast slab, and the hoisting holes can be used as water drainage holes.
Preferably, the prestressed pull rod consists of prestressed steel bundles, each prestressed steel bundle adopts unbonded epoxy coating steel strands, the diameter of each steel strand is 15.20mm, the standard value of the tensile strength is 1860MPa, the tension control stress is 651MPa, the anchor head of the pull rod adopts YM type and matched equipment thereof, a plastic corrugated pipe with the inner diameter of 45mm is wrapped outside the anchor head, and special grouting material is injected in the pipe in a pressing mode.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses a rib post, the anchor plate, the breast board, the prestressing force pull rod, rib post basis, the pull rod anchor head, unbonded epoxy coating steel strand wires, the cooperation of plastic corrugated pipe and mud jacking material is used, requirement to the ground is relatively lower, can be applicable to the weak ground that the bearing capacity is low, the range of application is wide, it is big because of self structure size to have solved traditional breast wall, area is big, the economic nature is relatively poor and return shortcomings such as the breast wall requires high, can be applicable to the road bed section that the breast wall is highly greater than twelve meters, and when the basis is located weak ground, because of traditional breast wall is higher to the requirement of foundation bearing capacity, the degree of difficulty and the expense that lead to the ground to handle are great, seriously restrict its application scope's problem.
2. The utility model is a light retaining wall, the section of the component is small, the structure has the advantages of light weight, high flexibility, low cost, small occupied area and the like, and each component can be prefabricated, thereby being beneficial to realizing the light structure and the mechanization of construction and improving the construction efficiency;
the retaining wall is a flexible structure, can effectively absorb earthquake load, and has better earthquake resistance; compared with the traditional gravity retaining wall structure, the gravity retaining wall structure has relatively low requirement on the foundation, can be suitable for the soft foundation with low bearing capacity, and has wide application range;
the prestressed pull rod adopts prestressed steel beams, compared with the traditional common steel bar pull rod, the prestressed pull rod has higher strength, the diameter of the prestressed pull rod is relatively small under the same condition, the length of the prestressed pull rod can be unlimited, a pull rod joint is not required to be arranged, and the construction efficiency is high;
the prestressed steel bundles adopt unbonded epoxy coating steel strands, plastic corrugated pipes are wrapped outside the prestressed steel bundles, cement mortar is poured in the pipelines, the anchor heads of the pull rods are sealed by concrete, and the durability of the prestressed pull rods is superior to that of the traditional pull rods;
the lateral uplift force on the contact surface of the filled soil and the anchor plate or the retaining plate is relied on to maintain the balance of the structure, the filled soil does not need to limit the sandy soil with larger friction coefficient, and the difference between the anchor rod and the traditional anchor rod is that the uplift force of the prestressed pull rod is provided by the anchor plate or the retaining plate instead of the frictional resistance of the steel pull rod and the filler, so that the section of the retaining wall member in the scheme is small, and the retaining wall member has the advantages of light structure mass, high flexibility, low manufacturing cost, small occupied area and the like;
compared with the traditional common steel bar pull rod, the prestressed pull rod can bear larger pulling force, and is provided with matched tensioning equipment and anchoring components, so that the prestressed pull rod is easier to tension and has higher durability;
because of self atress characteristics, the horizontal soil pressure of the inboard side soil filling of retaining wall is through the even transmission of prestressing force pull rod to the rib post, and for traditional retaining wall, the moment of flexure of rib post basis bottom is very little for the basement stress is less, and is less to the foundation bearing capacity requirement, and application scope is wider.
Drawings
FIG. 1 is a schematic cross-sectional view I (the filling height is less than 7m) of the present invention;
FIG. 2 is a schematic cross-sectional view II of the present invention (the height of the filled soil is greater than 7 m);
FIG. 3 is a front view of the present invention;
FIG. 4 is a schematic cross-sectional view of the pull rod of the present invention;
fig. 5 is a schematic cross-sectional view of the prestressed tension rod of the present invention.
In the figure: 1 rib post, 2 anchor plates, 3 retaining plates, 4 prestressed pull rods, 5 anti-collision guardrails, 6 rib post foundations, 7 pavements, 8 filling soil, 9 pull rod anchor heads, 10 unbonded epoxy coating steel stranded wires, 11 plastic corrugated pipes and 12 grouting materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to be referred must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses a rib post 1, anchor plate 2, fender apron 3, prestressing force pull rod 4, anticollision barrier 5, rib post basis 6, fill out soil 8, pull rod anchor head 9, unbonded epoxy coating steel strand wires 10, plastic corrugated pipe 11 and pressure thick liquids 12 parts are the parts that general standard spare or technical personnel in the field know, and its structure and principle all are this technical personnel all can learn through the technical manual or learn through conventional experimental method.
Referring to fig. 1-5, a retaining wall structure system applied to a high-fill roadbed comprises rib columns 1, anchor plates 2, retaining plates 3, prestressed pull rods 4, rib column foundations 6, a road surface 7 and filling soil 8, wherein the filling soil 8 is filled in the bottom of the road surface 7, the structural balance is maintained by means of lateral uplift resistance on the contact surfaces of the filling soil 8 and the anchor plates 2 or the retaining plates 3, the filling soil 8 does not need to limit sandy soil with a large friction coefficient, and the difference between the retaining wall structure system and a traditional anchor rod is that the uplift resistance of the prestressed pull rods 4 is not provided by means of the frictional resistance of the steel pull rods and the filling materials but is provided by the anchor plates 2 or the retaining plates 3, so that the section of a wall member in the scheme is small, and the retaining wall structure has the advantages of light weight, high flexibility, low manufacturing cost, small occupied area and the like, and due to the self-bearing characteristic, the horizontal soil pressure of the filling soil 8 inside the retaining wall is uniformly transmitted to the rib columns 1 through, compared with the traditional retaining wall, the bottom of the rib column foundation 6 has small bending moment, so that the foundation stress is small, the requirement on the bearing capacity of the foundation is small, the application range is wide, the bottoms of two sides of the filled soil 8 are fixedly connected with the rib column foundation 6, the top of the rib column foundation 6 is fixedly connected with a rib column 1, the rib column 1 is fixedly connected with a retaining plate 3, an anchoring plate 2 is arranged inside the filled soil 8, the anchoring plate 2 is fixedly connected with the rib column 1 through a prestress pull rod 4, and the two rib columns 1 are also fixedly connected through the prestress pull rod 4;
the right side of the top of the road surface 7 is fixedly connected with an anti-collision guardrail 5, the retaining plate 3 and the rib columns 1 are both positioned below the anti-collision guardrail 5, the retaining wall is a light retaining wall, the section of the component is small, and the retaining wall has the advantages of light structural mass, high flexibility, low manufacturing cost, small occupied area and the like, and each component can be prefabricated and constructed, so that the lightening structure and the mechanization of construction can be realized, the construction efficiency can be improved;
the two sides of the prestressed pull rod 4 are fixedly connected with pull rod anchor heads 9, the pull rod anchor heads 9 are fixed on one side of the rib columns 1, and the function of anchoring the prestressed pull rod 4 is achieved through the use of the pull rod anchor heads 9;
the prestressed pull rod 4 comprises a plastic corrugated pipe 11, an inner cavity of the plastic corrugated pipe 11 is provided with unbonded epoxy coating steel stranded wires 10, a pressure slurry 12 is filled between the unbonded epoxy coating steel stranded wires 10 and the plastic corrugated pipe 11, the prestressed pull rod 4 adopts prestressed steel bundles, compared with a traditional common reinforced steel pull rod, the strength of the pull rod is higher, the diameter of the prestressed pull rod 4 is relatively small under the same condition, the length of the prestressed pull rod 4 can not be limited, a pull rod joint is not required to be arranged, the construction efficiency is high, the prestressed steel bundles adopt the unbonded epoxy coating steel stranded wires 10, the plastic corrugated pipe 11 is wrapped outside to play a role in transmitting horizontal soil pressure, cement mortar is poured into a pipeline, a pull rod anchor head 9 is sealed by concrete, the durability of the prestressed pull rod 4 is superior to that of the traditional pull rod, the unbonded epoxy coating steel stranded wires 10 are introduced into the design of the prestressed pull, compared with the traditional common steel bar pull rod, the prestressed pull rod 4 can bear larger pulling force, and is provided with matched tensioning equipment and anchoring components, so that the prestressed pull rod 4 is easier to perform tensioning construction and has higher durability;
the rib columns 1 are rectangular in cross section, the size of the cross section is 0.5x0.7m, one rib column 1 is arranged every 2.5m, the rib columns 1 can be prefabricated parts or cast in place, pull rod pore channels are reserved during casting, and the diameter of each pore channel is larger than that of the prestressed pull rod 4;
the anchor plate 2 is a rectangular reinforced concrete precast slab, and a pull rod hole is reserved in advance when the anchor plate 2 is precast;
the retaining plate 3 adopts a rectangular reinforced concrete precast slab, the lap joint length of the retaining plate and the rib column 1 is 0.15m, and the single precast slab is provided with two hoisting holes with the diameter of 6cm, and the hoisting holes can be used as water drainage holes;
the prestressed pull rod 4 is composed of prestressed steel bundles, the prestressed steel bundles adopt unbonded epoxy coating steel strands 10, the diameter of a single steel strand is 15.20mm, the standard value of the tensile strength is 1860MPa, the tension control stress is 651MPa, a pull rod anchor head 9 adopts YM type and matched equipment thereof, a plastic corrugated pipe 11 with the inner diameter of 45mm is wrapped outside, and special grouting material 12 is injected in the pipe in a pressing manner;
when the height of the filling 8 is less than 7m, the structure is shown in figure 1, and when the height of the filling 8 is more than 7m, the structure is shown in figure 2.
Through rib post 1, anchor plate 2, retaining plate 3, prestressing force pull rod 4, rib post basis 6, pull rod anchor head 9, unbonded epoxy coating steel strand wires 10, plastic corrugated pipe 11 and pressure thick liquids 12's cooperation is used, requirement to the ground is relatively lower, can be applicable to the weak ground that the bearing capacity is low, the range of application is wide, it is big because of self structure size to have solved traditional retaining wall, area is big, the economic nature is relatively poor and return the retaining wall and require shortcomings such as high, can be applicable to the road bed section that the retaining wall highly is greater than twelve meters, and solved the higher problem of requirement of traditional retaining wall to the bearing capacity of basis, can effectively reduce the degree of difficulty and the expense of ground processing, the range of application is wider.
When the foundation is used, after the base is treated, a cushion layer of a rib column foundation 6 and foundation concrete are poured, rib columns 1 are poured from bottom to top in a graded mode, after the strength of the concrete reaches 95%, filling soil 8 is paved from bottom to top in a layered mode and compacted, and when the filling soil is filled to a position 20cm above a first row of prestressed pull rods 4, lower-layer pull rod grooves and anchor plate 2 pits are excavated; after the concrete age of the rib post 1 meets the requirement, installing an outer wall soil baffle plate 3, an anchoring plate 2 and a prestressed pull rod 4, and primarily tensioning the prestressed pull rod 4, wherein the initial tensioning load is 10% of the standard strength value of the prestressed pull rod 4 (or determined according to a field drawing test); filling and compacting after the wall is built in layers, then repeating the construction method of the first row of pull rods until the roadbed filling construction is finished, and finally tensioning and locking the prestressed pull rods 4 according to the design load and sealing the anchors.
In summary, the following steps: this be applied to anchor plate retaining wall of high fill road bed, through rib post 1, anchor plate 2, retaining plate 3, prestressing force pull rod 4, rib post basis 6, pull rod anchor head 9, unbonded epoxy coating steel strand wires 10, the cooperation of plastic corrugated pipe 11 and mud jacking material 12 is used, the shortcoming that traditional retaining wall requires height because of self structure size is big, area is big, the economic nature is relatively poor and return the retaining wall, and the higher problem of requirement of traditional retaining wall to the foundation bearing capacity has been solved, can effectively reduce the degree of difficulty and the expense of ground processing, it is low to have the cost, the security is good, the durability is high, area is little, application scope is wider.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a be applied to retaining wall structural system of high fill road bed, includes rib post (1), anchor plate (2), keeps off native board (3), prestressing force pull rod (4), rib post basis (6), road surface (7) and banket (8), its characterized in that: the bottom landfill on road surface (7) has landfill (8), the equal fixedly connected with rib post basis (6) in bottom of landfill (8) both sides, the top fixedly connected with rib post (1) of rib post basis (6), fixedly connected with keeps off native board (3) on rib post (1), the inside of landfill (8) is provided with anchor plate (2), through prestressing force pull rod (4) fixed connection between anchor plate (2) and rib post (1), also through prestressing force pull rod (4) fixed connection between two rib posts (1).
2. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: the right side fixedly connected with anticollision barrier (5) at the top of road surface (7), it all is located the below of anticollision barrier (5) to keep off native board (3) and rib post (1).
3. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: both sides of the prestressed pull rod (4) are fixedly connected with pull rod anchor heads (9), and the pull rod anchor heads (9) are fixed on one side of the rib column (1).
4. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: the prestress pull rod (4) comprises a plastic corrugated pipe (11), an unbonded epoxy coating steel strand (10) is arranged in an inner cavity of the plastic corrugated pipe (11), and grouting material (12) is filled between the unbonded epoxy coating steel strand (10) and the plastic corrugated pipe (11).
5. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: the rib columns (1) are rectangular in cross section, the size of the cross section is 0.5x0.7m, one rib column (1) is arranged at intervals of 2.5m, the rib columns (1) are prefabricated parts or cast in place, pull rod channels are reserved during casting, and the diameter of each channel is larger than that of each prestressed pull rod (4).
6. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: the anchor plate (2) is a rectangular reinforced concrete precast plate, and a pull rod hole is reserved in advance when the anchor plate (2) is precast.
7. The retaining wall structural system applied to the high fill subgrade according to the claim 1, is characterized in that: the retaining plate (3) adopts rectangular reinforced concrete precast slabs, the length of the rectangular reinforced concrete precast slabs and the overlap joint of the rectangular reinforced concrete precast slabs and the rib column (1) is 0.15m, two hoisting holes with the diameter of 6cm are formed in each precast slab, and the hoisting holes can be used as water drainage holes.
8. The retaining wall structural system applied to the high fill roadbed according to claim 3, wherein: the prestressed pull rod (4) is composed of prestressed steel bundles, the prestressed steel bundles adopt unbonded epoxy coating steel strands (10), the diameter of a single steel strand is 15.20mm, the standard value of the tensile strength is 1860MPa, the tension control stress is 651MPa, the anchor head (9) of the pull rod adopts YM type and matched equipment thereof, a plastic corrugated pipe (11) with the inner diameter of 45mm is wrapped outside, and special grouting material (12) is injected in the pipe in a pressing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424622.8U CN212104170U (en) | 2019-12-30 | 2019-12-30 | Retaining wall structure system applied to high fill roadbed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922424622.8U CN212104170U (en) | 2019-12-30 | 2019-12-30 | Retaining wall structure system applied to high fill roadbed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212104170U true CN212104170U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922424622.8U Expired - Fee Related CN212104170U (en) | 2019-12-30 | 2019-12-30 | Retaining wall structure system applied to high fill roadbed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212104170U (en) |
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2019
- 2019-12-30 CN CN201922424622.8U patent/CN212104170U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201208 Termination date: 20211230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |