Connecting device of earthwork standard room and gabion and earthwork standard room reinforced reconstruction and expansion road

Abstract

The invention discloses a connecting device of an earthwork standard room and a gabion and an earthwork standard room reinforced reconstruction and extension road, and belongs to the technical field of road engineering. The method is used for solving at least one of the problems that in the prior art, connection points are loosened and fall off due to unstable connection between the geocell and a gabion, the overall bearing capacity and deformation resistance of a road are affected due to the fact that a grid structure cannot be completely stretched, and displacement deformation of the geocell is caused by connection looseness. The connecting device comprises a connecting base body and a geocell winding assembly. A long-strip-shaped first mounting groove is formed in one side of the connecting base body, a hexagonal second mounting groove is formed in the other side of the connecting base body, a tensioning shaft insertion hole is formed in the connecting base body in the longitudinal direction, the geocell winding assembly is inserted into the tensioning shaft insertion hole and rotationally connected with the connecting base body, and the first mounting groove communicates with the tensioning shaft insertion hole. The connecting structure can be used for connecting the geocell and the gabion.

Description

Technical Field

[0001] This invention belongs to the field of road engineering technology, and particularly relates to a connection device for geocells and gabions, and a method for reinforcing and expanding roads with geocells. Background Technology

[0002] Geocells and gabions form a composite structure of "cell confinement-gabion protection", which can not only strengthen the soil with geocells, but also resist external loads and water erosion with gabions, significantly improving the durability and stability of the engineering structure.

[0003] In existing engineering applications, the connection between geocells and gabions is usually achieved by binding (such as wire wrapping, nylon rope binding), buckle connection or direct overlap; while the tensioning of geocells mostly relies on manual pulling and positioning for fixation, or by achieving initial tensioning through edge ballast.

[0004] However, on the one hand, the contact area of ​​binding or snap-fit ​​connections is small, and the stress at the connection points is concentrated. Under the long-term load, water flow impact, or material shrinkage and expansion caused by temperature changes, the connection points are prone to loosening and falling off, or even relative slippage between the gabion and the geocell, resulting in the failure of the synergistic working effect of the composite structure. On the other hand, the mechanical properties of the geocell depend on the formation of a three-dimensional grid structure after sufficient and uniform tensioning, which forms a rigid constraint on the soil. However, the existing manual tensioning is insufficient and uneven, and it is difficult to accurately control the tension stress by manually pulling and positioning, resulting in local relaxation and wrinkling of the geocell, and the grid structure cannot be fully stretched, affecting the overall bearing capacity and deformation resistance of the road. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a connection device for geocells and gabions and a road reconstruction and expansion project reinforced with geocells, in order to solve at least one of the following problems in the prior art: unstable connection between geocells and gabions leading to loosening and detachment of connection points; inability of the grid structure to fully extend, affecting the overall bearing capacity and deformation resistance of the road; and displacement and deformation of geocells caused by loose connection.

[0006] The objective of this invention is mainly achieved through the following technical solutions.

[0007] This invention provides a connection device for geocells and gabions, including a connecting base and a geocell winding assembly; A long, narrow first mounting groove is provided on one side of the connecting base, and a hexagonal second mounting groove is provided on the other side of the connecting base. A tension shaft insertion hole is provided longitudinally inside the connecting base. The cell winding assembly is inserted into the tension shaft insertion hole and is rotatably connected to the connecting base. The first mounting groove is connected to the tension shaft insertion hole.

[0008] Furthermore, the sheet-like structure at the end of the geocell passes through the first mounting groove and is fixedly connected to the geocell winding assembly; The gabion mesh is inserted into the second mounting slot and the gabion mesh is fixedly connected to the second mounting slot.

[0009] Furthermore, the depth of the first installation groove is 8mm~15mm, and the difference between the width of the first installation groove and the thickness of the sheet structure at the end of the geocell is 2mm~3mm.

[0010] Furthermore, the depth of the second mounting groove is 4mm to 8mm.

[0011] Furthermore, the connecting device also includes a first cell connecting piece and a second cell connecting piece. The first cell connecting piece is located on one side of the first mounting groove, and the second cell connecting piece is located on the other side of the first mounting groove. The sheet-like structure at the end of the geocell is located between the first cell connecting piece and the second cell connecting piece.

[0012] Furthermore, the first cell connecting plate, the second cell connecting plate, and the sheet-like structure at the end of the geocell are detachably connected.

[0013] Furthermore, the thickness of the first cell connecting plate and the second cell connecting plate is 3mm~5mm, the width of the first cell connecting plate and the second cell connecting plate is no more than 120mm, and the difference between the length of the first cell connecting plate and the second cell connecting plate and the height of the geocell is 15mm~20mm.

[0014] Furthermore, the connecting device also includes a gabion connecting plate. After the gabion cage mesh is inserted into the second mounting groove, the gabion connecting plate is fastened onto the second mounting groove, and the gabion cage mesh is located between the connecting base and the gabion connecting plate.

[0015] Furthermore, the thickness of the gabion connecting plate is 4mm~10mm.

[0016] The present invention also provides a geocell-reinforced road reconstruction and expansion project, including the above-mentioned geocell and gabion connection device.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: A) The connection device for geocells and gabions provided by this invention constructs a multi-locking system of physical positioning, mechanical connection and unidirectional tension, which can realize a detachable and stable connection between geocells and gabions. Compared with traditional simple overlapping, tying or bolt connection, the connection strength and stability are effectively improved, and the problem of insufficient connection strength is solved from the structural root.

[0018] B) The geocell and gabion connection device provided by the present invention can flexibly adjust the tension of the geocell according to actual needs during the construction of road expansion and reconstruction with geocell reinforcement, ensuring a tight connection between the geocell and the gabion, so as to jointly bear the upper load and effectively reduce deformation or damage caused by unstable connection.

[0019] C) The geocell and gabion connection device provided by the present invention has a simple installation process. During construction, it is only necessary to insert the geocell and rotate the geocell winding component to complete the unidirectional tensioning of the geocell. There is no need for complex tooling or multiple adjustments. Compared with the traditional connection process of cumbersome measurement, drilling, bolt tightening and other processes, it can significantly shorten the time for a single connection, improve construction efficiency, speed up the project progress and reduce labor and time costs.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained through the embodiments described and the accompanying drawings, which are particularly pointed out. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Figure 1 This is a schematic diagram of the connection device between the geocell and the gabion provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the connection device between the geocell and the gabion provided in Embodiment 1 of the present invention from another direction. Figure 3 This is a transverse sectional view of the connection device between the geocell and the gabion provided in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the structure of the geocell winding assembly in the geocell and gabion connection device provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the gabion connecting plate in the connection device between the geocell and the gabion provided in Embodiment 1 of the present invention. Figure 6 This is a schematic diagram of the structure of the geocell-reinforced road reconstruction and expansion provided in Embodiment 2 of the present invention.

[0022] Figure label: 1-Cement-fly ash-gravel foundation; 11-Cement-fly ash-gravel pile; 12-Geotextile warp-knitted mesh; 13-Foundation gabion; 14-Three-dimensional gel-gravel layer; 15-Soft soil foundation; 2-Expansion and reinforcement zone; 21-Lateral limiting plate; 211-Cement-based composite component; 212-Composite gabion; 22-Geocell; 23-Expansion filling layer; 24-Connecting device; 241-Connecting base; 242-First mounting slot; 243-Second mounting slot; 244-Gabion winding shaft; 245-One-way stop gear; 246-One-way locking buckle; 247-Transverse rod; 248-Gabion insertion slot; 249-First cell connecting piece; 2410-Second cell connecting piece; 2411-Gabion connecting plate; 3-Expansion pavement; 4-Transition layer; 5-Reinforced gabion; 6-Existing roadbed; 7-Existing foundation. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0024] Example 1 This embodiment provides a connection device for geocells and gabions. See [link / reference] Figures 1 to 3 It includes the connecting substrate 241 and the cell winding assembly.

[0025] The connecting base 241 has a long strip-shaped first mounting groove 242 on one side and a hexagonal second mounting groove 243 on the other side. The connecting base 241 has a tension shaft insertion hole along the longitudinal direction. The cell winding assembly is inserted into the tension shaft insertion hole and rotatably connected to the connecting base 241. The first mounting groove 242 is connected to the tension shaft insertion hole.

[0026] The sheet-like structure at the end of the geocell passes through the first mounting groove 242 and is fixedly connected to the geocell winding assembly.

[0027] The cage mesh of the gabion is inserted into the second mounting slot 243 and the cage mesh is fixedly connected to the second mounting slot 243.

[0028] During implementation, the connection between geocells and gabions includes the following steps: The sheet-like structure at the end of the geocell passes through the first mounting groove 242 and is fixedly connected to the geocell winding assembly; Rotating the geocell winding assembly causes the geocells to be tensioned towards the geocell winding assembly, thus achieving the tensioning of the geocells; The gabion mesh is inserted into the second mounting groove 243 and the gabion mesh is fixedly connected to the second mounting groove 243, thus completing the connection between the gabion and the geocell and the gabion connection device.

[0029] Compared with existing technologies, the connection device for geocells and gabions provided in this embodiment constructs a multi-locking system of physical positioning, mechanical connection and unidirectional tension, which can realize a detachable and stable connection between geocells and gabions. Compared with traditional simple overlapping, tying or bolt connection, the connection strength and stability are effectively improved, solving the problem of insufficient connection strength from the structural root.

[0030] When constructing roads reinforced with geocells, the tension of the geocells can be flexibly adjusted according to actual needs to ensure a tight bond between the geocells and the gabions, so that they can jointly bear the upper load and effectively reduce deformation or damage caused by unstable connection.

[0031] Meanwhile, the installation process of the connection device between geocells and gabions is simple. During construction, it is only necessary to insert the geocell and rotate the geocell winding component to complete the unidirectional tensioning of the geocell. There is no need for complicated tooling or multiple adjustments. Compared with the traditional connection process of cumbersome measurement, drilling, bolt tightening and other procedures, it can significantly shorten the time for a single connection, improve construction efficiency, speed up the project progress and reduce labor and time costs.

[0032] For example, the depth of the first mounting groove 242 is 8mm~15mm, the difference between the width of the first mounting groove 242 and the thickness of the sheet structure at the end of the geocell is 2mm~3mm, which facilitates the embedding of the sheet structure at the end of the geocell, the height of the first mounting groove 242 is the same as the height of the main body of the connection device between the geocell and the gabion, and the groove wall has a chamfered structure.

[0033] The depth of the second mounting slot 243 is 4mm to 8mm.

[0034] To achieve a fixed connection between the cell winding assembly and the sheet-like structure at the end of the geocell, for the specific structure of the cell winding assembly, see [link to relevant documentation]. Figure 4It includes a cell winding shaft 244, a one-way stop gear 245, a one-way locking buckle 246, and a transverse rod 247. The cell winding shaft 244 has a cell insertion groove 248 formed along its axial direction. One end of the transverse rod 247 is fixedly connected to one side of the cell insertion groove 248, while the other end of the transverse rod 247 is suspended and has a gap between it and the other side of the cell insertion groove 248. The one-way stop gear 245 is sleeved on one end of the cell winding shaft 244, and the one-way locking buckle 246 is provided on the connecting base 241, with the one-way stop gear 245 and the one-way locking buckle 246 engaging. Correspondingly, bolt holes are formed on the sheet-like structure at the end of the geocell. The sheet-like structure at the end of the geocell passes through the first mounting groove 242 and is inserted into the gap between the transverse rod 247 and the wall of the geocell insertion groove 248. The bolt hole corresponds to the position of the transverse rod 247. At this time, rotating the geocell winding shaft 244 will insert the transverse rod 247 into the bolt hole, thus achieving a fixed connection of the sheet-like structure geocell winding assembly at the end of the geocell. Continuing to rotate the geocell winding shaft 244 will cause the sheet-like structure at the end of the geocell to wind around the geocell winding shaft 244, thus achieving tensioning of the geocell. When the geocell reaches the preset tension, the one-way locking buckle 246 is inserted into the one-way locking gear 245 to achieve tensioning and fixing of the geocell.

[0035] In this way, the geocell winding assembly with the above-described structure can achieve a stable and fixed connection between the sheet-like structure at the end of the geocell and the geocell winding assembly. During the rotation of the geocell winding shaft 244, the transverse rod 247 is precisely inserted into the bolt hole, which not only completes the initial positioning and connection, but also, as the geocell winding shaft 244 continues to rotate, the sheet-like structure at the end of the geocell gradually winds around the geocell winding shaft 244, achieving gradual tensioning of the geocell. When the tension force reaches the preset value, the one-way locking buckle 246 quickly inserts into the one-way locking gear 245, forming a reliable mechanical lock, thereby ensuring the stability of the geocell under tension. At the same time, the tensioning process of this geocell winding assembly is controllable and easy to operate, allowing construction personnel to precisely adjust the tension force of the geocell according to actual needs to meet the construction requirements under different working conditions.

[0036] For example, the diameter of the cell winding shaft 244 is 30mm~40mm; the one-way stop gear 245 has a gear module of 2~4, a number of teeth of 15~30, a tooth tip circle diameter of 60mm~80mm, and a tooth tip circle thickness of 20mm~25mm; the thickness of the one-way locking buckle 246 is 20mm~25mm, and the extension length of the one-way locking buckle 246 is 50mm~120mm; the depth of the cell insertion groove 248 is 15mm~30mm.

[0037] In order to achieve a stable connection between the cell winding assembly and the sheet-like structure at the end of the geocell, there are multiple transverse rods 247. The multiple transverse rods 247 are evenly arranged along the axial direction of the cell winding shaft 244. The spacing between two adjacent transverse rods 247 is 5mm to 15mm. The shape of the transverse rod 247 is conical. The tip angle of the transverse rod 247 is 30° to 45°. The outer wall of the transverse rod 247 is provided with annular anti-slip texture. The length of the transverse rod 247 is 30mm to 45mm.

[0038] In order to further solve the problem of unstable connection between the sheet-like structure at the end of the geocell and the connection device of the geocell and gabion, the connection device of the geocell and gabion also includes a first cell connecting piece 249 and a second cell connecting piece 2410. The first cell connecting piece 249 is located on one side of the first mounting groove 242, and the second cell connecting piece 2410 is located on the other side of the first mounting groove 242. The sheet-like structure at the end of the geocell is located between the first cell connecting piece 249 and the second cell connecting piece 2410. The three are detachably connected by connecting bolts. In this way, the detachable connection between the first cell connecting piece 249, the second cell connecting piece 2410, and the sheet-like structure at the end of the geocell can further enhance the stability of the connection between the geocell and the geocell and gabion connection device. During the construction and use of the geocell-reinforced road expansion and reconstruction, even under the influence of complex forces such as upper load and lateral soil pressure, the sheet-like structure at the end of the geocell is not easy to separate from the connection device of the geocell and gabion, thereby reducing problems such as geocell displacement and deformation caused by loose connection.

[0039] For example, the thickness of the first cell connecting piece 249 and the second cell connecting piece 2410 is 3mm to 5mm, the width of the first cell connecting piece 249 and the second cell connecting piece 2410 is no more than 120mm (e.g., 100mm to 115mm), and the difference between the length of the first cell connecting piece 249 and the second cell connecting piece 2410 and the height of the geocell is 15mm to 20mm.

[0040] Similarly, in order to further address the problem of unstable connection between the gabion mesh and the geocell and gabion connection device, the aforementioned geocell and gabion connection device also includes a gabion connection plate 2411, see [link to relevant documentation]. Figure 5 After the gabion mesh is inserted into the second mounting groove 243, the gabion connecting plate 2411 is fastened onto the second mounting groove 243, so that the gabion mesh is located between the connecting base 241 and the gabion connecting plate 2411. The three are securely connected by bolts. Through the pressing action of the gabion connecting plate 2411, the gabion mesh can be effectively prevented from coming out of the second mounting groove 243 when under force, thereby enhancing the reliability of the connection.

[0041] It should be noted that during the connection process between the gabion mesh and the geocell and gabion connection device, the gabion mesh can be connected to the geocell and gabion connection device first, and then graded crushed stone and grouting material can be filled into the gabion to form the overall structure of the gabion.

[0042] For example, the thickness of the gabion connecting plate 2411 is 4mm to 10mm, and the four corners are rounded.

[0043] Example 2 This embodiment provides a method for renovating and expanding roads using geocell reinforcement. (See also...) Figure 6 This includes the connection device for geocells and gabions provided in Embodiment 1.

[0044] Compared with the prior art, the beneficial effects of the geocell-reinforced road reconstruction and expansion provided in this embodiment are basically the same as the beneficial effects of the connecting device provided in Embodiment 1, and will not be described in detail here.

[0045] It is understandable that the above-mentioned geocell reinforced road reconstruction and expansion also includes a cement fly ash and gravel foundation 1, an expansion and reinforcement zone 2 and an expansion road surface 3 stacked from bottom to top. The cement fly ash and gravel foundation 1 is located outside the original foundation 7, and the expansion and reinforcement zone 2 is located outside the original roadbed 6.

[0046] The expanded and reinforced zone 2 is rectangular in shape along the cross-section of the road, and the interface between the expanded and reinforced zone 2 and the original roadbed 6 is set vertically. The expanded and reinforced zone 2 includes lateral restraint plates 21, geocells 22, and expanded fill layers 23. Multiple geocells 22 and multiple expanded fill layers 23 are alternately stacked to form a reinforced layered structure. The lateral restraint plates 21 are set vertically on the outside of the reinforced layered structure (i.e., the open surface of the reinforced layered structure), and multiple lateral restraint plates 21 are continuously arranged along the longitudinal direction of the road. In this way, for reconstruction and expansion projects with narrow sites and tight schedules, the lateral restraint plates 21 are set vertically on the outside of the reinforced layered structure, eliminating the need for large-area excavation during construction, resulting in a small footprint and high construction efficiency.

[0047] The lateral limiting plate 21 is an assembled semi-rigid gabion panel. Specifically, it includes a cement-based composite component 211 and a composite gabion 212. Among two adjacent cement-based composite components 211, the upper surface of the lower cement-based composite component 211 is provided with a lower groove, and the lower surface of the upper cement-based composite component 211 is provided with an upper groove. The lower groove and the upper groove are positioned correspondingly to form a receiving cavity for accommodating the composite gabion 212. The composite gabion 212 is placed in the receiving cavity. In this way, the combination of cement-based composite component 211 and composite gabion 212 has two advantages. First, the prefabricated design facilitates prefabrication and rapid on-site installation, effectively shortening the construction cycle and improving construction efficiency. Second, by combining the rigidity of cement-based composite component 211 and the flexibility of composite gabion 212, the overall strength of the lateral limiting plate 21 is ensured, while also giving the lateral limiting plate 21 a certain degree of deformation adaptability. This effectively resists the lateral pressure of the side soil, reduces lateral deformation, and enhances the stability of the geocell-reinforced road reconstruction and expansion project.

[0048] It should be noted that the gabion in Embodiment 1 is a composite gabion 212, that is, the composite gabion 212 is connected to the geocell 22 through a connecting device.

[0049] For example, the cell height of geocell 22 is not higher than 200mm (e.g., 150mm~180mm), the tensile strength is ≥100kN / m, and the elongation is ≤10%.

[0050] For example, the height of the composite gabion 212 is 500mm~800mm, the longitudinal length is 2000mm~3000mm, and the transverse width is 400mm~600mm. The cage body of the composite gabion 212 is made of equilateral hexagonal wire mesh with a wire diameter of not less than 2mm (e.g., 2.5mm~4.0mm) and a tensile strength ≥500MPa. The side length of a single mesh is 100mm~120mm.

[0051] In order to further solve the problem that the lateral limiting plate 21 has poor ability to resist the lateral pressure of the side soil, the lateral limiting plate 21 also includes a mortise and tenon structure between two adjacent cement-based composite parts 211.

[0052] For example, the mortise and tenon structure includes a raised mortise and a recessed mortise, which fit together. The raised mortise is located on one of the cement-based composite components 211, and the recessed mortise is located on the other cement-based composite component 211. This mortise and tenon structure further enhances the connection strength and integrity between adjacent cement-based composite components 211, making the lateral restraint plate 21 more stable in resisting lateral pressure from the side soil. This effectively reduces deformation or damage to the lateral restraint plate 21 caused by lateral pressure, thereby improving the safety and durability of the geocell-reinforced road reconstruction. Simultaneously, the fitting connection method of the mortise and tenon structure, with its layered design, can flexibly adapt to different filling height requirements in confined spaces in soft soil areas. It is simple, reliable, and easy to construct, contributing to improved construction quality and efficiency.

[0053] The cross-section of the recessed mortise is rectangular. The length of the recessed mortise is no greater than 100mm (e.g., 80mm~90mm), the width is no greater than 100mm (e.g., 35mm~45mm), and the depth is no greater than 80mm (e.g., 50mm~75mm). The sidewalls of the recessed mortise have a chamfered structure with an angle of 3°~5°. The width difference between the raised mortise and the recessed mortise is 3mm~5mm, and the height difference between the raised mortise and the recessed mortise is 3mm~5mm. The surface of the raised mortise has a rough structure to enhance the friction with the recessed mortise.

[0054] In order to solve the problem of large settlement difference between the original roadbed 6 and the expanded reinforced zone 2, the above-mentioned geocell reinforced road reconstruction and expansion also includes a multi-layer connecting component in the original roadbed 6. The connecting component includes a transition layer 4 and a reinforced gabion 5 stacked from bottom to top, and the two are in close contact.

[0055] It should be noted that the gabion in Embodiment 1 is a reinforced gabion 5, that is, the reinforced gabion 5 is connected to the geocell 22 through a connecting device.

[0056] Specifically, the structure of the cement fly ash gravel foundation includes cement fly ash gravel piles 11, geotextile wire mesh 1212, foundation gabion 13, three-dimensional gel gravel layer 14, and soft soil foundation 15. The cement fly ash gravel piles 11 are located in the soft soil foundation 15 and are set vertically. A receiving groove is provided on the upper surface of the soft soil foundation 15 and between two adjacent cement fly ash gravel piles 11. Continuous geotextile wire mesh 12 is laid on the upper surface of the soft soil foundation 15 and on the walls and bottom of the receiving groove. The foundation gabion 13 is placed on the geotextile wire mesh 12 in the receiving groove. The three-dimensional gel gravel layer 14 is laid on the foundation gabion 13 and the geotextile wire mesh 12 on the surface. In this way, on the one hand, a continuous geotextile mesh 12 is laid on the upper surface of the soft soil foundation 15 and on the walls and bottom of the receiving trench. The foundation gabion 13 is placed on the geotextile mesh 12 inside the receiving trench. The geotextile mesh 12, with its high strength and good mechanical transmission characteristics, can further and orderly transfer the gravity load it bears to the cement fly ash gravel piles 11, forming a relay load transfer path of foundation gabion 13, geotextile mesh 12 and cement fly ash gravel piles 11, which alleviates the excessive deformation of the soft soil between the piles due to excessive load, and ensures the stability of the cement fly ash gravel foundation bearing system. On the other hand, the three-dimensional gel gravel layer 14 acts as a filter layer, which effectively intercepts fine soil particles, significantly reduces the risk of clogging of the three-dimensional gel gravel layer 14, extends the service life of the three-dimensional gel gravel layer 14, and solves the problem in the prior art that fine soil particles in soft soil foundations will invade the drainage channel with water flow and form clogging.

[0057] Specifically, the structure of the three-dimensional gel crushed stone layer 14 includes graded crushed stone and filling material filling the gaps between the graded crushed stone. The composition of the filling material by mass parts includes 1-2 parts of N,N′methylenebisacrylamide, 22-25 parts of acrylamide monomer, 3-6 parts of bentonite, 0.05-0.2 parts of potassium ferricyanide and 0.5-1.5 parts of potassium persulfate.

[0058] Thus, the aforementioned three-dimensional gel-crushed stone layer 14 is mainly composed of graded crushed stone, with a mixture mainly composed of acrylamide monomer and N,N′-methylenebisacrylamide filling the gaps between the graded crushed stone. The raw materials of the filling material undergo a chemical reaction in the gaps between the graded crushed stone to form a three-dimensional complex in-situ gel network, which can efficiently intercept fine soil particles, significantly reduce the risk of clogging of the three-dimensional gel-crushed stone layer 14, and extend the service life of the three-dimensional gel-crushed stone layer 14. At the same time, due to the porosity and incomplete filling of the three-dimensional complex in-situ gel network, the overall high permeability of the clogging crushed stone cushion layer can be guaranteed, and the drainage capacity is not fundamentally affected. In addition, due to the elasticity of the gel network, it can adapt to the deformation of the cement fly ash crushed stone foundation and still maintain the barrier function after deformation, and is not prone to brittle failure.

[0059] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A connection device for geocells and gabions, characterized in that, Includes connecting substrate and cell winding assembly; The connecting base has a long strip-shaped first mounting groove on one side and a hexagonal second mounting groove on the other side. The connecting base has a tension shaft insertion hole along the longitudinal direction. The cell winding assembly is inserted into the tension shaft insertion hole and rotatably connected to the connecting base. The first mounting groove communicates with the tension shaft insertion hole.

2. The connection device for geocells and gabions according to claim 1, characterized in that, The sheet-like structure at the end of the geocell passes through the first mounting groove and is fixedly connected to the geocell winding assembly; The cage mesh of the gabion is inserted into the second mounting slot and the cage mesh is fixedly connected to the second mounting slot.

3. The connection device for geocells and gabions according to claim 1, characterized in that, The depth of the first installation groove is 8mm~15mm, and the difference between the width of the first installation groove and the thickness of the sheet structure at the end of the geocell is 2mm~3mm.

4. The connection device for geocells and gabions according to claim 1, characterized in that, The depth of the second mounting groove is 4mm~8mm.

5. The connection device for geocells and gabions according to claim 1, characterized in that, The connecting device further includes a first cell connecting piece and a second cell connecting piece. The first cell connecting piece is located on one side of the first mounting groove, and the second cell connecting piece is located on the other side of the first mounting groove. The sheet-like structure at the end of the geocell is located between the first cell connecting piece and the second cell connecting piece.

6. The connection device for geocells and gabions according to claim 5, characterized in that, The first cell connecting piece, the second cell connecting piece, and the sheet-like structure at the end of the geocell are detachably connected.

7. The connection device for geocells and gabions according to claim 5, characterized in that, The thickness of the first and second cell connecting plates is 3mm to 5mm, the width of the first and second cell connecting plates is no more than 120mm, and the difference between the length of the first and second cell connecting plates and the height of the geocell is 15mm to 20mm.

8. The connection device for geocells and gabions according to any one of claims 1 to 7, characterized in that, The connecting device also includes a gabion connecting plate. After the gabion's cage mesh is inserted into the second mounting groove, the gabion connecting plate is fastened onto the second mounting groove, and the gabion's cage mesh is located between the connecting base and the gabion connecting plate.

9. The connection device for geocells and gabions according to claim 8, characterized in that, The thickness of the gabion connecting plate is 4mm to 10mm.

10. A method for renovating and expanding roads using geocell reinforcement, characterized in that, Includes the connection device for geocells and gabions as described in any one of claims 1 to 9.

Images