CN220725134U - Assembled UHPC truss anchor plate slope protection structure - Google Patents
Assembled UHPC truss anchor plate slope protection structure Download PDFInfo
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- CN220725134U CN220725134U CN202322271470.9U CN202322271470U CN220725134U CN 220725134 U CN220725134 U CN 220725134U CN 202322271470 U CN202322271470 U CN 202322271470U CN 220725134 U CN220725134 U CN 220725134U
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- precast concrete
- truss
- anchor
- concrete panel
- concrete
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 19
- 239000011178 precast concrete Substances 0.000 claims abstract description 47
- 239000004567 concrete Substances 0.000 claims abstract description 46
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010959 steel Substances 0.000 claims abstract description 20
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 abstract description 17
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 24
- 230000002787 reinforcement Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 238000004873 anchoring Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009739 binding Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004746 geotextile Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The application relates to the field of slope protection structures, in particular to an assembled UHPC truss anchor plate slope protection structure. The prefabricated steel concrete panels are paved on the side slope and are provided with anchor holes, and the prefabricated concrete panels are fixed on the side slope through anchor rods penetrating through the anchor holes; pouring a concrete mortar layer between the precast concrete panel and the side slope; the precast concrete panel is provided with truss rib assemblies, and the truss rib assemblies are inlaid in the concrete mortar layer. This device has effectually improved the efficiency of construction through adopting the prefabricated concrete panel's of assembled structure, adopts anchor and truss rib structure simultaneously, has improved holistic stability, has adopted the double-deck protective structure of concrete mortar layer and prefabricated concrete panel, has improved the life of bank protection.
Description
Technical Field
The application relates to the field of slope protection structures, in particular to an assembled UHPC truss anchor plate slope protection structure.
Background
In mountain regions with abundant rainfall, landslide disasters frequently occur, and slope disaster prevention and reduction engineering faces great challenges. Therefore, it is necessary to perform engineering support for a slope that is at risk of landslide and to perform engineering reinforcement treatment for a slope that is in an unstable state.
The existing slope real type protection structure generally takes cast-in-place concrete retaining walls and facing walls as the main materials, and needs to be bound with reinforcing steel bars and spliced with molds during slope construction, then pouring and vibrating concrete mortar are carried out, the molds are disassembled after the initial setting of the concrete reaches the strength required by design, and then the next mold-building, pouring and mold-dismantling work is carried out in a circulating mode. The site construction period is long, the management difficulty is high, the support timeliness is poor, the overall stability of the side slope is seriously threatened, and the risk of secondary disasters exists. The cast-in-place concrete structure generally has the construction quality and is difficult to guarantee, so that the durability of the structure is poor, the problem that the support structure and the side slope are difficult to coordinate in the support engineering exists, in addition, the construction is carried out on a steep slope, the die assembling and disassembling procedures are complicated, and the whole construction process has extremely high safety risk.
Disclosure of Invention
In view of this, this application provides an assembled UHPC truss anchor plate slope protection structure, and the effectual current slope real type protection structure of having solved is under construction inefficiency, and stability and the poor problem of durability, this device has effectually improved the efficiency of construction through adopting assembled precast concrete panel's structure, adopts anchor and truss muscle structure simultaneously, has improved holistic stability, has adopted the structure of concrete mortar layer and precast concrete panel double-deck protection, has improved the life of bank protection.
In a first aspect, the application provides an assembled UHPC truss anchor plate slope protection structure, include, lay a plurality of prefabricated steel concrete panels that the assembly formed on the side slope:
the precast concrete panel is provided with an anchor hole, and the precast concrete panel is fixed on a side slope through an anchor rod penetrating through the anchor hole;
pouring a concrete mortar layer between the precast concrete panel and the side slope;
the precast concrete panel is provided with truss rib assemblies which are embedded in the concrete mortar layer;
wherein, truss rib subassembly includes:
the lower chord steel bars are laid in the precast concrete panel; and
the upper chord steel bars are inlaid in the concrete mortar layer; and
and the web member steel bars are used for connecting the lower chord steel bars and the upper chord steel bars.
Further, drain holes are formed in the precast concrete panel.
Further, the edge of the precast concrete panel is provided with a plurality of positioning buckles.
Furthermore, the precast concrete panel is internally provided with prestressed reinforcement paved by a plurality of transverse and longitudinal directions.
Further, a plurality of groups of truss rib assemblies are arranged on the precast steel concrete panel.
Compared with the prior art, the beneficial effect of this scheme lies in:
high strength and durability: the prefabricated steel concrete panel and UHPC (ultra-high performance concrete) materials are used, so that the side slope protection structure has excellent compression resistance, bending resistance and earthquake resistance, can bear larger load and external force action, and improves the stability and durability of the side slope.
And (3) quick construction: the prefabricated concrete panels are assembled, so that factory production and on-site rapid installation can be realized, the construction period is greatly shortened, and the construction efficiency is improved.
And (3) anchoring stability: the anchor rod passes through the anchor hole to fix the precast concrete panel on the side slope, so that a reliable anchoring effect can be provided, and the stability of the side slope structure is improved.
And (3) reinforcing truss ribs: the truss rib assembly is arranged on the precast concrete panel and comprises the lower chord steel bars, the upper chord steel bars and the web member steel bars, so that the tensile resistance and the shearing resistance of the side slope structure can be effectively enhanced, and the overall bearing capacity of the side slope is improved.
And (3) protecting a concrete mortar layer: and a concrete mortar layer is poured between the precast concrete panel and the side slope, so that an additional protective layer can be provided, the precast panel is prevented from being damaged by external factors, and the service life of the structure is prolonged.
In conclusion, the assembled UHPC truss anchor plate slope protection structure has the advantages of high strength, good durability, rapid construction, stable anchoring, truss rib reinforcement, concrete mortar layer protection and the like, and can effectively improve the stability and safety of the slope.
Drawings
FIG. 1 is a schematic installation view of an assembled UHPC truss anchor plate slope protection structure.
Fig. 2 is a schematic diagram showing an assembly structure of a precast concrete panel according to the present application.
Fig. 3 is a schematic diagram of a precast concrete panel assembly structure of the present application.
Fig. 4 is a schematic view of a single precast concrete panel structure of the present application.
Fig. 5 shows a second schematic view of a single precast concrete panel structure of the present application.
Fig. 6 is a schematic structural view of a truss rib assembly according to the present application.
Fig. 7 is a schematic view showing a construction of laying prestressed reinforcement inside the precast concrete deck of the present application.
Description of the drawings:
precast concrete deck 100, anchor eye 110, drain hole 120, locating button 130;
truss rib assembly 200, lower chord rebar 210, upper chord rebar 220, web rebar 230;
prestressed reinforcement 300;
a bolt 400;
a concrete mortar layer 500;
a side slope 600.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
An exemplary assembled UHPC truss anchor plate slope protection structure is as follows:
as shown in fig. 1, 2 and 3, an assembled UHPC truss anchor slab slope protection structure includes precast concrete deck 100, truss rib assembly 200, prestressed reinforcement 300, anchor rods 400 and concrete mortar layer 500.
The precast concrete deck 100 is constructed as shown in fig. 2, 3, 4 and 5, and the precast concrete deck 100 is formed by casting UHPC, and in order to secure high strength of the precast concrete deck 100, as shown in fig. 7, prestressed reinforcement 300 connected in a horizontal-vertical direction is laid when the precast concrete deck 100 is cast. In the casting process, a drainage hole 120 and a group of anchor holes 110 are reserved on the precast concrete panel 100, and the anchor rods 400 are inserted through the anchor holes 110 to fix the anchor rods 400 on the side slope. By securing the precast concrete deck to the slope through the anchor holes 110 by the anchor rods 400, a reliable anchoring effect can be provided, and stability of the slope structure can be increased.
The concrete mortar layer 500 is required to be poured between the precast concrete deck 100 and the side slope, and the concrete mortar layer 500 can provide an additional protection layer to prevent the precast deck from being damaged by external factors, thereby prolonging the service life of the structure. To ensure stable connection of the precast concrete deck 100 and the concrete mortar layer 500, the truss rib assembly 200 is provided between the precast concrete deck 100 and the concrete mortar layer 500.
Truss rib assembly 200 is shown in fig. 3, 5 and 6 and includes lower chord rebar 210, upper chord rebar 220, web rebar 230. The web bars 230 are used to connect the lower chord bars 210 and the upper chord bars 220. The lower chord reinforcement 210 is fixed to the precast concrete deck 100 while the precast concrete deck 100 is poured, and the upper chord reinforcement 220 is disposed outside the precast concrete deck 100. When the concrete mortar layer 500 is poured, the upper chord steel bars 220 are placed in the concrete mortar layer 500, so that the tensile and shearing resistance of the side slope structure can be effectively enhanced, and the overall bearing capacity of the side slope is improved.
The concrete construction method is as follows:
(1) And (3) preparation of construction: rechecking a design drawing, grasping design intent, and drawing a construction scheme, organizing technical bottoms and safe bottoms; according to the design drawing, structural components such as truss rib assembly 200, prestressed reinforcement 300, anchor rod 400 and the like are prepared in advance, and the mixing proportion of mortar and concrete is selected.
(2) Precast concrete deck 100: effective measures are taken to prevent the damage of the components during the transportation process. Precast concrete panels 100 are erected, not square stackable, for shipping and stacking; leveling and reinforcing a prefabricated field; the working procedures of blanking, bending, binding, welding and the like of the steel bars and the embedded parts are finished according to the standard requirements, and the positions of the embedded parts (embedded holes) and the thickness of the concrete protective layer are controlled during prefabrication; the ultra-high performance concrete should be prepared according to the mixing proportion; the component can be lifted after the concrete reaches 75% of the design strength; and demolding and curing the member.
(3) Component handling and transportation: carrying and transporting the components should make a special technical scheme; multipoint lifting should be adopted; the slings should be perpendicular to the longitudinal axis of the precast concrete deck 100.
(4) And (3) construction lofting: measuring hole sites of auxiliary supporting piles of the first-layer precast slabs of each grade of side slopes; accurately determining the position and the elevation of the bottom of each grade of slope first layer precast slab.
(5) Cutting and brushing by layers: layered excavation is carried out from top to bottom strictly according to design requirements; generally requiring a jump trench to be excavated; the slope is cleaned and leveled by adopting manual or small-sized machinery; the exposure time is shortened as much as possible to avoid collapse.
(6) Precast concrete deck 100 installation: positioning and installing special waterproof and drainage plates; the horizontal error of the adjacent panels is not more than 10mm; the horizontal and slope errors should be adjusted layer by layer.
(6) The horizontal and vertical slits are filled with mortar or cement slurry, the width of the slit is 1.0cm, and after the installation is completed, the horizontal and vertical concave slits are uniformly formed.
(7) Pouring a concrete mortar layer 500; the strength of the cast-in-place concrete needs to meet the design requirement; corresponding checks and experiments should be performed on site; pouring the concrete in layers; and (5) timely curing after concrete pouring is completed. And (5) compacting by adopting concrete inserted with a vibrator. Concrete curing is needed
(8) Drilling holes; the allowable error of the drilling inclination angle is +/-1 DEG, the allowable error of the drilling aperture is +/-1 cm, and the allowable error of the hole depth is not more than 5cm. Casing drilling can be used when hole forming is difficult. The panel protection work should be done in the drilling process, so that damage is avoided.
(9) Installing an anchor rod; the nail or anchor rod type specification and performance should be in accordance with the design. The anchor rod needs to be centered when being placed in the hole.
(10) Grouting; the grouting material is made of pure cement or cement mortar; when grouting, if the orifice slurry surface is found to fall back, hole bottom pressure grouting and repairing are carried out; the grouting process should carefully make in-situ grouting records.
(11) Tensioning and locking; the tensioning and locking of the soil nails or the anchor rods are preferably carried out after the strength of the anchoring body is more than 20MPa and reaches 80% of the design strength; the bearing surface is vertical to the axis of the anchor hole; after the mortar in the soil nail or the anchor rod hole reaches 80% of the design marking strength, the soil nail or the anchor rod is locked, and then the next layer of excavation can be carried out.
(12) Pouring a foundation; digging to a design elevation according to design requirements, wherein the plane size of the bottom surface of a groove (pit) is usually 30cm larger than the outer edge of a foundation, and water-proof and drainage work is required; if the bearing capacity of the foundation is lower, corresponding measures are adopted for treatment; the top surface elevation is controlled during concrete pouring.
(13) And (3) grading a platform: the platform drainage ditch is manufactured, or a concrete closed grading platform is adopted.
(14) Intercepting and drainage ditch stage platform: the substrate is cleaned up, the substrate is ensured to be free of looseness and impurities, and the substrate is tamped. And (3) paving waterproof geotextile for seepage prevention treatment, wherein the water retaining bank is not less than 40cm higher than the ground, and the longitudinal slope of the platform drainage ditch is not less than 0.3%.
The basic principles of the present application have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not limiting, and these advantages, benefits, effects, etc. are not to be considered as necessarily possessed by the various embodiments of the present application. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the application is not intended to be limited to the details disclosed herein as such.
The block diagrams of the devices, apparatuses, devices, systems referred to in this application are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It is also noted that in the apparatus, devices and methods of the present application, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent to the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model to the precise form disclosed, and any modifications, equivalents, and alternatives falling within the spirit and principles of the present utility model are intended to be included within the scope of the present utility model.
Claims (5)
1. The utility model provides an assembled UHPC truss anchor plate slope protection structure, includes, is laid a plurality of prefabricated concrete panels that assemble on the side slope, its characterized in that:
the precast concrete panel is provided with an anchor hole, and the precast concrete panel is fixed on a side slope through an anchor rod penetrating through the anchor hole;
pouring a concrete mortar layer between the precast concrete panel and the side slope;
the precast concrete panel is provided with truss rib assemblies which are embedded in the concrete mortar layer;
wherein, truss rib subassembly includes:
the lower chord steel bars are laid in the precast concrete panel; and
the upper chord steel bars are inlaid in the concrete mortar layer; and
and the web member steel bars are used for connecting the lower chord steel bars and the upper chord steel bars.
2. The assembled UHPC truss anchor plate slope protection structure of claim 1, wherein the precast concrete panel is provided with drainage holes.
3. The assembled UHPC truss anchor plate slope protection structure of claim 2, wherein the precast concrete panel edge is provided with a plurality of locating buttons.
4. A fabricated UHPC truss anchor plate slope protection structure according to any of claims 1-3, wherein the precast concrete panels are internally provided with pre-stressed steel bars laid in a transverse and longitudinal direction.
5. The assembled UHPC truss anchor slab slope protection structure of claim 1, wherein the precast concrete panels are provided with a plurality of truss rib assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271470.9U CN220725134U (en) | 2023-08-22 | 2023-08-22 | Assembled UHPC truss anchor plate slope protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271470.9U CN220725134U (en) | 2023-08-22 | 2023-08-22 | Assembled UHPC truss anchor plate slope protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220725134U true CN220725134U (en) | 2024-04-05 |
Family
ID=90495805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322271470.9U Active CN220725134U (en) | 2023-08-22 | 2023-08-22 | Assembled UHPC truss anchor plate slope protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220725134U (en) |
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2023
- 2023-08-22 CN CN202322271470.9U patent/CN220725134U/en active Active
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