Fiber reinforced concrete revetment in cold and arid regions

Abstract

The utility model relates to the technical field of revetment, and disclose a kind of fibre reinforced concrete revetment in cold and arid region, including rammed soil layer;In the utility model, geotextile directly contacts soil body and blocks salt infiltration, and meets the requirements of frost resistance, salt tolerance, soil conservation, etc.;Temperature layer adopts coconut coir, which is laid on ecological module layer, and can play the role of heat preservation, reduce the freeze-thaw damage of concrete, have strong ecological compatibility, and construction is convenient, cost is controllable, fibre concrete ecological module has the advantages of high strength, low maintenance, freeze-thaw resistance and erosion resistance compared with ordinary concrete module, the mortise and tenon structure of module belongs to flexible connection, without mortar or steel nail fixing, which simplifies the installation process, and effectively relieves the material cumulative deformation caused by temperature change, adapts to foundation settlement, slope top grass planting brick, upper ecological module of revetment and aniselypanax are compatible with each other, have the advantages of drought tolerance, salt tolerance, wind sand resistance and soil protection.

Description

Technical Field

[0001] This utility model relates to the field of bank protection technology, specifically a fiber-reinforced concrete bank protection system for cold and arid regions. Background Technology

[0002] In the field of water conservancy engineering, laying concrete structures, stones, or planting vegetation are commonly used as channel bank protection measures to enhance the erosion resistance of the bank slopes.

[0003] In existing technologies, such as Chinese utility model patent CN220394415U, an ecological revetment structure is disclosed, which uses stones to support the revetment; Chinese utility model patent CN212426956U discloses an ecological revetment structure, which buffers the impact of river water by planting a vegetation layer. However, it has been found that the reinforcement materials used, such as concrete walls, are all integral. Concrete revetments have strong erosion resistance and low construction costs, but construction is inconvenient. Concrete is usually poured on-site, resulting in a long construction period. Furthermore, concrete materials are susceptible to erosion and frost heave, requiring frequent maintenance and making it difficult to adapt to the harsh winter environment of cold and arid regions. When the revetment is entirely composed of planted vegetation, the vegetation on the bank slope will create a high hydraulic roughness, affecting the water conveyance capacity of the channel. During irrigation, the resistance formed by the vegetation on the bank slope can easily uproot the plants, causing local instability and collapse of the bank slope, resulting in the death of a large number of plants. Utility Model Content

[0004] The purpose of this invention is to provide a fiber-reinforced concrete revetment for cold and arid regions to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fiber-reinforced concrete revetment for cold and arid regions, comprising a compacted soil layer, and further comprising: The foundation layers are set at both ends of the compacted soil layer. The compacted soil layer is provided with a slope protection layer and grass pavers. The top of the compacted soil layer is filled with concrete pavement and precast concrete cap.

[0006] Preferably, the base layer includes a gravel cushion layer disposed on top of the compacted soil layer, and fiber-reinforced concrete is poured at the bottom of the gravel cushion layer.

[0007] Preferably, the slope protection layer includes a geotextile placed on top of the compacted soil layer, with a concrete splicing block on the side of the geotextile closest to the ground surface, and a coconut fiber cloth on the side of the concrete splicing block closest to the ground surface.

[0008] Preferably, the concrete splicing block includes a concrete block, wherein a groove is provided on one side of the concrete block and a protrusion is provided on the other side.

[0009] Preferably, the grass pavers have through grooves at both the edges and the center.

[0010] Preferably, the top of the coconut fiber cloth is covered with grass bricks.

[0011] Preferably, there are two precast concrete caps, one on the concrete pavement and the other on the grass pavers.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, geotextile directly contacts the soil and blocks salt seepage, while also meeting requirements for frost resistance, salt tolerance, and soil conservation. The temperature layer, made of coconut fiber cloth, is laid on top of the ecological module layer, providing insulation, reducing freeze-thaw damage to concrete, exhibiting strong ecological compatibility, and offering convenient and cost-effective construction. Compared to ordinary concrete modules, fiber-reinforced concrete ecological modules offer advantages such as high strength, low maintenance, freeze-thaw resistance, and corrosion resistance. The mortise and tenon structure of the modules is a flexible connection, requiring no mortar or nails for fixing, simplifying the installation process and effectively mitigating material deformation caused by temperature changes. It adapts to foundation settlement, and the perforated design reduces costs and promotes vegetation growth. The grass pavers on the slope top and the ecological modules on the upper part of the revetment are compatible with reeds, offering advantages such as drought resistance, salt tolerance, wind and sand resistance, and soil stabilization and slope protection. Attached Figure Description

[0013] Figure 1 A schematic diagram of the main structure of fiber-reinforced concrete revetment for cold and arid regions provided by this utility model; Figure 2 A schematic diagram of the slope protection layer structure provided by this utility model; Figure 3 This is a schematic diagram of the concrete splicing block structure provided by this utility model; Figure 4 This is a schematic diagram of the grass-planting brick structure provided by this utility model.

[0014] In the diagram: 1. Compacted soil layer; 2. Slope protection layer; 21. Geotextile; 22. Concrete splice block; 23. Coconut fiber cloth; 221. Concrete block; 222. Protrusion; 223. Groove; 3. Foundation layer; 31. Gravel cushion layer; 32. Fiber concrete; 4. Grass paver; 5. Precast concrete cap; 6. Concrete pavement. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-4 As shown, a fiber-reinforced concrete revetment for cold and arid regions includes a compacted soil layer 1, and also includes a foundation layer 3 set at both ends of the compacted soil layer 1, a slope protection layer 2 and grass pavers 4 set on the compacted soil layer 1, and a concrete pavement 6 and a precast concrete cap 5 poured on the top of the compacted soil layer 1.

[0017] It should be noted that this patent adopts a top-down layered functional paving method: the slope surface is laid with a filter layer, a fiber concrete ecological module layer, and an insulation layer from bottom to top, with each layer addressing specific problems; the top of the slope and the upper part of the slope protection are simultaneously filled with planting soil and planted with reeds to form a composite ecological slope protection system.

[0018] The foundation layer 3 includes a gravel cushion layer 31 placed on top of the compacted soil layer 1, with fiber-reinforced concrete 32 poured at the bottom of the gravel cushion layer 31. The gravel cushion layer 31 serves as a transition and initial load-bearing layer, dispersing the upper load and providing some drainage. The fiber-reinforced concrete 32 is poured at the bottom of the gravel cushion layer 31, enhancing the strength and crack resistance of the foundation. The fibers can effectively prevent the expansion of internal cracks in the concrete, improving the durability of the foundation in complex environments in cold and arid regions.

[0019] The slope protection layer 2 includes a geotextile 21 placed on top of the compacted soil layer 1. A concrete splicing block 22 is installed on the side of the geotextile 21 closest to the ground surface, and a coconut fiber cloth 23 is installed on the side of the concrete splicing block 22 closest to the ground surface. The concrete splicing block 22 includes a concrete block 221, with a groove 223 on one side and a protrusion 222 on the other side. The geotextile 21 serves as a filter and separator, preventing soil particle loss while allowing water to pass through, ensuring the drainage performance of the slope protection. It also blocks salt infiltration, providing frost resistance, salt tolerance, and soil conservation, thus addressing the special environmental problems of saline-alkali areas. A concrete block is poured at the toe of the slope. A fiber-reinforced concrete foundation (32) was constructed to enhance the stability of the slope. Coconut fiber cloth (23) enhances the ecological properties and erosion resistance of the slope, and its fiber structure helps to fix the soil and promote plant growth. Concrete splicing blocks (22) are spliced ​​together by slots (223) and protrusions (222) to form a slope surface with good integrity. The slope is stabilized by the self-weight of the modules and the interlocking action of the flanges, without the need for mortar or steel nails. The interlocking part is designed with an arc shape to form a flexible connection system, which can largely adapt to the deformation of the ecological modules caused by frost heave and the slope settlement problem. It can effectively resist water erosion and external forces and protect the compacted soil layer (1).

[0020] The grass pavers 4 have grooves at their edges and center; the top of the coconut fiber cloth 23 is covered with grass pavers 4; two precast concrete caps 5 are respectively set on the concrete pavement 6 and the grass pavers 4; the grass pavers 4 are planted with reeds, and the grooves at their edges and center facilitate the growth of plant roots and drainage. The plant roots can further fix the soil and enhance the stability of the revetment; the groove design can also increase the contact area between the grass pavers 4 and the surrounding soil and coconut fiber cloth 23, improve the laying stability of the grass pavers 4, and adapt to the environmental changes in cold and arid areas; the precast concrete caps 5 are set on the concrete pavement 6 and the grass pavers 4, which can protect the edges and prevent rainwater erosion from causing edge damage; at the same time, it can also enhance the integrity and stability of the revetment structure and provide certain support and dispersion for the load that the upper part may bear.

[0021] Working principle: The gravel cushion layer 31 is placed on top of the compacted soil layer 1. Utilizing the gaps between its particles, it acts as a transition and initial load-bearing layer, evenly distributing the load from the superstructure onto the compacted soil layer 1. Simultaneously, its gaps provide drainage channels, allowing water to drain smoothly and reducing the impact of water accumulation on the foundation. Fiber-reinforced concrete 32 is poured at the bottom of the gravel cushion layer 31. The incorporated fibers effectively prevent the expansion of internal cracks in the concrete, enhancing the foundation's strength and crack resistance. This significantly improves the foundation's durability in complex environments such as freeze-thaw cycles and large temperature variations in cold and arid regions, providing stable and reliable foundation support for the entire revetment structure. Geotextile 21 is laid on top of the compacted soil layer 1, using its special porous structure to act as a filter and separator. On one hand, it allows water to pass through, ensuring good drainage performance and preventing water accumulation from damaging the revetment; on the other hand, it effectively prevents soil particle loss, maintaining the stability of the revetment soil. In addition, it can block salt infiltration, and also has antifreeze, salt-resistant, and soil-retaining functions, effectively solving the special environmental problems of saline-alkali areas. Coconut fiber cloth 23: Located at the bottom of the concrete splicing block 22, its fiber structure has a large specific surface area, which can enhance the ecological properties and erosion resistance of the slope. The fibers can fix the soil, reduce the erosion of the soil by water flow, and at the same time provide a good environment for plant growth, promote the development of plant roots, and further strengthen the slope soil. Concrete splicing block 22: Composed of concrete blocks 221, with a groove 223 on one side and a protrusion 222 on the other side. Through the interlocking of the groove 223 and the protrusion 222, the concrete splicing blocks 22 form a slope protection surface with good integrity. This splicing method relies on the self-weight of the module and the interlocking action of the flange to achieve slope stability, without the need for mortar or steel nails for fixing. The interlocking joint is designed in an arc shape, forming a flexible connection system that can largely adapt to deformation caused by frost heave in the ecological module and slope settlement, effectively resisting water erosion and external forces, and protecting the compacted soil layer 1. Furthermore, a fiber-reinforced concrete foundation 32 is poured at the toe of the slope to further enhance its stability. Grass pavers 4 are laid on top of coconut fiber fabric 23, with grooves at their edges and center. This groove design serves multiple purposes: firstly, it facilitates plant root growth, allowing roots to penetrate into the surrounding soil and coconut fiber fabric 23, further fixing the soil and enhancing the stability of the bank; secondly, the grooves increase the contact area between the grass pavers 4 and the surrounding soil and coconut fiber fabric 23, improving the stability of the grass pavers 4 and enabling them to better adapt to environmental changes in cold and arid regions, such as temperature variations and freeze-thaw cycles.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, including an element by a statement does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber-reinforced concrete revetment for cold and arid regions, comprising a compacted soil layer (1), characterized in that, Also includes: The foundation layer (3) is set at both ends of the compacted soil layer (1), the compacted soil layer (1) is provided with a slope protection layer (2) and grass bricks (4), and the top of the compacted soil layer (1) is poured with a concrete pavement (6) and a precast concrete cap (5). The slope protection layer (2) includes a geotextile (21) set on top of the compacted soil layer (1), and a concrete splicing block (22) is set on the side of the geotextile (21) near the ground surface, and a coconut fiber cloth (23) is set on the side of the concrete splicing block (22) near the ground surface. The concrete splicing block (22) includes a concrete block (221), with a slot (223) on one side and a protrusion (222) on the other side. The top of the coconut fiber cloth (23) is covered with grass bricks (4).

2. The fiber-reinforced concrete revetment for cold and arid regions according to claim 1, characterized in that: The foundation layer (3) includes a gravel cushion layer (31) set on top of the compacted soil layer (1), and fiber concrete (32) is poured at the bottom of the gravel cushion layer (31).

3. The fiber-reinforced concrete revetment for cold and arid regions according to claim 1, characterized in that: The grass pavers (4) have grooves at their edges and center.

4. The fiber-reinforced concrete revetment for cold and arid regions according to claim 1, characterized in that: Two precast concrete caps (5) are provided, one on the concrete pavement (6) and the other on the grass bricks (4).

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