Coal gangue roadbed filler workpiece, construction method and compaction device

Abstract

This invention belongs to the field of highway construction and relates to a coal gangue subgrade filler, a construction method, and a compaction device; it can improve the integrity of the subgrade, reduce slippage, and decrease the possibility of pavement cracking. The coal gangue subgrade filler includes: a rubber mesh and fixed anchor bolts. The rubber mesh is a long strip-shaped mesh structure with tensile fibers inside. The fixed anchor bolts fix the rubber mesh to the embankment. The compaction device includes: a towing vehicle and a vibration assembly. The vibration assembly is connected to the towing vehicle and vibrates the coal gangue material within the rubber frame. The construction method includes: each rubber mesh is arranged perpendicular to the embankment's extension direction; the rubber mesh is fixed to the embankment using fixed anchor bolts; coal gangue material is spread onto the rubber mesh; the coal gangue material within the rubber frame is vibrated to compact it; coal gangue material is spread again onto the rubber mesh to completely cover it; and a road roller is used to flatten the coal gangue material.

Description

Technical Field

[0001] This invention belongs to the field of highway construction and relates to a coal gangue roadbed filler material, construction method and compaction device. Background Technology

[0002] In highway construction, the road consists of embankment, roadbed, and pavement from bottom to top. In the central and western regions of my country, where coal is transported, the load-bearing requirements for the pavement are high. At the same time, in order to recycle coal gangue, using coal gangue as roadbed fill material can effectively increase the upper limit of highway load, reduce material costs, and protect the environment.

[0003] Coal gangue has a particle size of 10cm to 12cm and is compacted by a road roller. In actual operation, it has been found that due to factors such as heavy vehicle traffic and ground movement, there is a problem of embankment and roadbed slippage towards both sides of the road. In particular, the outer side of the road is generally used by large and heavy vehicles, while the inner side is generally used by smaller vehicles. The amount of slippage of the embankment and roadbed varies at different locations from the sides of the road towards the center, which is one of the causes of road surface cracking. Summary of the Invention

[0004] To overcome the shortcomings of the aforementioned related technologies, this invention proposes a coal gangue roadbed filler material. This material can improve the integrity of the roadbed, reduce slippage, and decrease the likelihood of pavement cracking.

[0005] To achieve the above technical objectives, the coal gangue roadbed filler material of the present invention includes: a rubber mesh and fixed anchor bolts. The rubber mesh is an overall elongated mesh structure, and tensile fibers are arranged inside the rubber mesh along its extension direction. Multiple fixed anchor bolts are adapted to corresponding rubber meshes, and the fixed anchor bolts are configured to fix the rubber mesh to the embankment.

[0006] Preferably, the rubber mesh includes a rubber frame. The rubber frame has a square cross-section and is open at both the top and bottom. Multiple rubber frames are arranged sequentially and fixedly connected, and the tensile fibers are fixed inside the rubber frames along multiple arrangement directions. The tensile fibers include multiple glass fiber woven mesh strips.

[0007] On the other hand, the present invention also provides a coal gangue roadbed fill compaction device. The coal gangue roadbed fill compaction device includes: a towing vehicle and a vibration assembly. The vibration assembly is connected to the towing vehicle and is configured to vibrate the coal gangue material within a rubber frame.

[0008] The vibration assembly includes a support wheel set and a vibration mechanism. Rollers are provided at the lower end of the support wheel set, and two support wheel sets are arranged side-by-side. At least one vibration mechanism is arranged sequentially and fixed between the two support wheel sets, and the vibration mechanism is configured to vibrate the coal gangue packing within the rubber frame.

[0009] The vibration mechanism includes an outer frame, a vibrating plate, elastic elements, a vibration motor, and vibration rods. The outer frame is a horizontally arranged square frame with an annular groove opening to the side on its inner side. The vibrating plate is a plate conforming to the shape of the outer frame, and its four edges are movably inserted into the annular groove. Multiple elastic elements are arranged between the vibrating plate and the bottom of the annular groove. The vibration motor is fixed to the upper surface of the vibrating plate. The vibration rods are straight rods, and multiple vibration rods are vertically fixed to the lower surface of the vibrating plate.

[0010] Preferably, the support wheel assembly includes: rollers, a lifting bracket, and a connecting plate. The lifting bracket is vertically arranged, and rollers are provided at its lower end. A connecting plate is fixed to the upper side of the lifting bracket, and the connecting plate is fixedly connected to a corresponding vibration mechanism.

[0011] Preferably, the elastic element includes: a telescopic rod, a ball tube, a rolling ball, and a compression spring. The tubular part of the telescopic rod is fixedly connected to the side wall of the vibrating plate of the outer casing, and the straight part of the telescopic rod is movably inserted into the tubular part. One end of the ball tube is fixedly connected to the telescopic rod, and the other end of the ball tube has an opening communicating with a cavity inside the ball tube. The opening is a variable-diameter tubular structure that decreases in diameter from inside the cavity outwards. A rolling ball is movably disposed inside the ball tube. The diameter of the rolling ball is larger than the maximum diameter of the opening. When the rolling ball abuts against the inner wall of the cavity opposite the opening, at least one point on the rolling ball protrudes to the outside of the opening. The compression spring is movably fitted onto the telescopic rod. One end of the compression spring abuts against the side wall of the vibrating plate, and the other end of the compression spring abuts against one end of the ball tube.

[0012] Preferably, the vibrating plate has grooves on its upper and lower sides at the edge of the annular groove. Multiple balls are disposed within the grooves, the diameter of which is greater than the depth of the grooves, and all the balls abut against the corresponding sidewalls of the annular groove.

[0013] Furthermore, the present invention also provides a construction method for coal gangue roadbed filler. This construction method is suitable for using the aforementioned coal gangue roadbed filler workpiece and the aforementioned coal gangue roadbed filler compaction device.

[0014] The construction method for coal gangue roadbed filler includes: multiple rubber meshes are arranged sequentially along the embankment extension direction, with each rubber mesh perpendicular to the embankment extension direction. The height of the rubber frame of each rubber mesh is 10cm-15cm. Fixed anchor bolts are used to fix the rubber meshes to the embankment. Coal gangue material is spread onto the rubber meshes, with a thickness of 15cm-20cm, and the particle size of the coal gangue material is less than or equal to 10cm. The coal gangue material within each rubber frame is vibrated to compact it. Coal gangue material is then spread again onto the rubber meshes to completely cover them. A road roller is used to flatten the coal gangue material.

[0015] Preferably, the method for fixing the rubber mesh to the embankment using the anchor bolts includes: at least four anchor bolts are provided within the rubber frame of each rubber mesh, with the at least four anchor bolts correspondingly abutting the four internal vertical edges of the rubber frame. The anchor bolts are vertically inserted into the embankment, and the upper end of the anchor bolt is 1cm to 2cm away from the upper end of the rubber mesh.

[0016] Preferably, the method for vibrating the coal gangue in each rubber frame includes: inserting at least one vibrating rod into the rubber frame containing the added coal gangue, the vibrating rod being 3-5 cm away from the embankment, activating the vibrating rod to generate high-frequency vibration, and driving the coal gangue to vibrate, so that the coal gangue is deposited and compacted downwards within the rubber frame.

[0017] The beneficial effects of this invention are as follows:

[0018] This invention employs a rubber mesh with tensile fibers, which improves the relative stability of coal gangue. This reduces slippage between coal gangue particles, thereby decreasing the amount and likelihood of roadbed slippage and reducing the number of cracks in the road surface.

[0019] This invention employs a compaction device that can vibrate and compact the coal gangue inside the rubber frame, preventing the rubber frame itself from absorbing the vibration or oscillation of the road roller, and preventing the road surface from sinking later due to the coal gangue inside the rubber frame not being compacted.

[0020] The coal gangue roadbed filling method of the present invention involves filling coal gangue into a rubber mesh and simultaneously using a compaction device to compact the coal gangue within the rubber mesh. This reduces relative slippage between coal gangue, avoids uncompacted areas between coal gangue, improves roadbed stability, enhances highway quality, and reduces subsequent road surface maintenance. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a cross-sectional view of the roadside of the present invention;

[0023] Figure 2 This is a diagram showing the installation of the rubber mesh of the present invention on a roadbed;

[0024] Figure 3 This is a cross-sectional view of the rubber mesh of the present invention;

[0025] Figure 4 For the present invention Figure 2 Enlarged view of region A in the middle;

[0026] Figure 5 This is a structural diagram of the vibration assembly of the present invention;

[0027] Figure 6 This is a cross-sectional view of the vibration mechanism of the present invention;

[0028] Figure 7 This is a top view of the vibration mechanism of the present invention;

[0029] Figure 8 For the present invention Figure 6 A magnified view of region B in the middle. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0033] On the one hand, such as Figures 1 to 4 As shown, some embodiments of the present invention provide a coal gangue roadbed filler component. The coal gangue roadbed filler component includes: a rubber mesh 1 and fixed anchor bolts 2. The rubber mesh 1 is generally a long strip-shaped mesh structure, and tensile fibers 11 are arranged inside the rubber mesh 1 along its extension direction. Multiple fixed anchor bolts 2 are adapted to corresponding rubber meshes 1, and the fixed anchor bolts 2 are configured to fix the rubber mesh 1 to the embankment.

[0034] In some examples, the overall length of the rubber mesh 1 can be adapted to the width of the roadbed, so that the rubber mesh can fix and traction the coal gangue throughout the roadbed. The width of the rubber mesh is 3m to 4m, and multiple rubber meshes are connected in sequence and laid on the embankment. The height of the rubber mesh is 15 to 20cm, and multiple upward-facing meshes are set on the rubber mesh, which can be filled with coal gangue material. Generally, coal gangue used as roadbed filler has a diameter of less than or equal to 10cm. The roadbed of highways is 0.3m to 1.5m, and generally, the roadbed of expressways is about 1.2m. The rubber mesh can be laid to the middle of the roadbed. For example, the rubber mesh is 0.5 to 0.6m away from the surface of the embankment. Before laying the rubber mesh, a 0.5 to 0.6m thick roadbed can be laid on the embankment and compacted with a road roller; then, the rubber mesh is laid on the roadbed and fixed with anchor bolts. Coal gangue filler was filled into the rubber mesh and compacted by vibration. Then, the roadbed was laid on top of the rubber mesh again, achieving an overall roadbed thickness of approximately 1.2m.

[0035] Tensile fibers need to be installed inside the rubber mesh to provide tension on the coal gangue filler in the horizontal direction, thus preventing the roadbed from slipping due to the relative displacement of the coal gangue filler caused by vibration, heavy pressure, and geological processes.

[0036] Each rubber grid also needs to be fixed to the embankment by a fixed anchor rod. The fixed anchor rod can be a straight rod that passes through the rubber grid and is inserted into the embankment to fix the rubber grid to the embankment.

[0037] In this application, the rubber mesh can be made from recycled waste tires and thermoplasticized, which has the advantages of resource recycling and low price.

[0038] In some embodiments, the rubber mesh 1 includes a rubber frame. The rubber frame has a square cross-section and is open at both the top and bottom. Multiple rubber frames are arranged sequentially and fixedly connected. The tensile fibers 11 are fixed inside the rubber frames along multiple directions arranged in the rubber frames. The tensile fibers include multiple mesh strips woven from glass fibers.

[0039] On the other hand, such as Figures 5 to 8 As shown, some embodiments of the present invention also provide a coal gangue roadbed fill compaction device. The coal gangue roadbed fill compaction device includes: a towing vehicle and a vibration assembly 3. The vibration assembly 3 is connected to the towing vehicle and is configured to vibrate the coal gangue material within a rubber frame.

[0040] The vibration assembly 3 includes a support wheel set 31 and a vibration mechanism 32. The lower end of the support wheel set 31 is provided with a roller 311, and two support wheel sets 31 are arranged side-by-side. At least one vibration mechanism 32 is arranged sequentially and fixed between the two support wheel sets 31, and the vibration mechanism 32 is configured to vibrate the coal gangue filler within the rubber frame.

[0041] The vibration mechanism 32 includes: an outer frame 321, a vibrating plate 322, elastic elements 323, a vibration motor 324, and vibration rods 325. The outer frame 321 is a horizontally arranged square frame, with an annular groove opening to the side on its inner side. The vibrating plate 322 is a plate conforming to the shape of the outer frame 321, and its four edges are movably inserted into the annular groove. Multiple elastic elements 323 are arranged between the vibrating plate 322 and the bottom of the annular groove. The vibration motor 324 is fixed to the upper surface of the vibrating plate 322. The vibration rods 325 are straight rods, and multiple vibration rods 325 are vertically fixed to the lower surface of the vibrating plate 322.

[0042] Preferably, the support wheel assembly 31 includes: rollers 311, a lifting bracket 312, and a connecting plate 313. The lifting bracket 312 is vertically arranged, and the rollers 311 are provided at the lower end of the lifting bracket 312. The connecting plate 313 is fixed to the upper side of the lifting bracket 312, and the connecting plate 313 is fixedly connected to a corresponding vibration mechanism 32.

[0043] Preferably, the elastic element 323 includes: a telescopic rod 3231, a ball tube 3232, a rolling ball 3233, and a compression spring 3234. The tube of the telescopic rod 3231 is fixedly connected to the side wall of the vibration plate 322 of the outer casing, and the straight rod of the telescopic rod 3231 is movably inserted into the tube of the telescopic rod 3231. One end of the ball tube 3232 is fixedly connected to the telescopic rod 3231, and the other end of the ball tube 3232 has an opening that communicates with the cavity inside the ball tube 3232. The opening is a variable-diameter tubular structure that decreases in diameter from inside the cavity outwards. A rolling ball 3233 is movably disposed inside the ball tube 3232. The diameter of the rolling ball 3233 is larger than the maximum diameter of the opening. When the rolling ball 3233 abuts against the inner wall of the cavity opposite the opening, at least one point on the rolling ball 3233 protrudes to the outside of the opening. The compression spring 3234 is movably mounted on the telescopic rod 3231. One end of the compression spring 3234 abuts against the side wall of the vibrating plate 322, and the other end of the compression spring 3234 abuts against one end of the ball tube 3232.

[0044] Preferably, the vibrating plate 322 has grooves 3221 on its upper and lower sides at the edge of the annular groove. Multiple balls 3222 are disposed within the grooves 3221, the diameter of each ball 3222 being larger than the depth of the groove 3221, and all balls 3222 abutting against the corresponding sidewalls of the annular groove.

[0045] Furthermore, some embodiments of the present invention also provide a method for constructing coal gangue roadbed filler. This method is suitable for using the aforementioned coal gangue roadbed filler workpiece and the aforementioned coal gangue roadbed filler compaction device.

[0046] The aforementioned construction method for coal gangue roadbed fill includes:

[0047] S1. Multiple rubber grids are arranged sequentially along the embankment extension direction, and each rubber grid is arranged perpendicular to the embankment extension direction. The rubber frame height of the rubber grid is 10cm~15cm.

[0048] S2. The rubber mesh is fixed to the embankment using fixed anchor bolts.

[0049] S3. Spread coal gangue material onto the rubber mesh. The thickness of the spread coal gangue material is 15cm to 20cm, and the particle size of the coal gangue material is less than or equal to 10cm.

[0050] S4. Vibrate the coal gangue material in each rubber frame to compact it.

[0051] S5. Spread coal gangue material onto the rubber mesh again and completely cover the rubber mesh.

[0052] S6. The coal gangue is compacted using a road roller.

[0053] Preferably, the method for fixing the rubber mesh to the embankment using the anchor bolts includes: at least four anchor bolts are provided within the rubber frame of each rubber mesh, with the at least four anchor bolts correspondingly abutting the four internal vertical edges of the rubber frame. The anchor bolts are vertically inserted into the embankment, and the upper end of the anchor bolt is 1cm to 2cm away from the upper end of the rubber mesh.

[0054] Preferably, the method for vibrating the coal gangue in each rubber frame includes: inserting at least one vibrating rod into the rubber frame containing the added coal gangue, the vibrating rod being 3-5 cm away from the embankment, activating the vibrating rod to generate high-frequency vibration, and driving the coal gangue to vibrate, so that the coal gangue is deposited and compacted downwards within the rubber frame.

[0055] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A construction method for coal gangue roadbed fill material, characterized in that, The construction method for coal gangue roadbed fill includes: Construction using coal gangue roadbed filler materials; The coal gangue roadbed filler material includes rubber mesh and fixed anchor bolts; The rubber mesh is an elongated mesh structure, and the interior of the rubber mesh is designed along its extension direction. Contains tensile fibers; Multiple fixed anchors are adapted to corresponding rubber meshes, the fixed anchors being configured to hold the rubber mesh in place. The adhesive mesh is fixed to the embankment; The rubber mesh includes: A rubber frame, wherein the rubber frame has a square cross-section and is open at both the top and bottom, and multiple rubber frames are arranged sequentially and fixedly connected, and the tensile fiber is fixed inside the rubber frame along the arrangement direction of the rubber frame; The tensile fiber comprises multiple glass fiber woven mesh strips; Multiple rubber grids are arranged sequentially along the embankment extension direction, and each rubber grid is arranged perpendicular to the embankment extension direction. The rubber frame of the rubber grid is 10cm~15cm high. The rubber mesh is fixed to the embankment using fixed anchor bolts; Coal gangue is spread onto the rubber mesh, with a thickness of 15cm to 20cm, and the particle size of the coal gangue is less than or equal to 10cm. Vibrate the coal gangue material in each rubber frame to compact it. Coal gangue is then spread onto the rubber mesh again to completely cover it; The coal gangue was compacted using a road roller.

2. The construction method for coal gangue roadbed fill material according to claim 1, characterized in that, The method for fixing the rubber mesh to the embankment with the fixed anchor bolt includes: Each of the rubber grids has at least four fixed anchor rods inside its rubber frame, and the at least four fixed anchor rods are respectively attached to the four internal vertical edges of the rubber frame; The fixed anchor rod is inserted vertically into the embankment, and the upper end of the fixed anchor rod is 1cm to 2cm away from the upper end of the rubber mesh.

3. A coal gangue roadbed compaction device for use in the construction method of coal gangue roadbed fill according to claim 1 or 2, comprising: Towing vehicles; A vibration assembly connected to the towing vehicle, the vibration assembly being configured to vibrate the coal gangue material within a rubber frame; The vibration assembly includes: A support wheel assembly is provided with a roller at its lower end, and two support wheel assemblies are arranged side by side. A vibration mechanism, at least one vibration mechanism arranged in sequence and fixed between two support wheel sets, the vibration mechanism being configured to vibrate the coal gangue packing within the rubber frame; The vibration mechanism includes: The outer frame is a horizontally arranged square frame, and the inner side of the outer frame is provided with an annular groove that opens to the side. The vibrating plate is a plate that conforms to the shape of the outer frame, and the four edges of the vibrating plate are all inserted into the annular groove. Elastic elements are provided between the vibrating plate and the bottom of the annular groove; A vibration motor is fixed to the upper end face of the vibration plate; A vibrating rod, wherein the vibrating rod is a straight rod, and multiple vibrating rods are vertically fixed to the lower end face of the vibrating plate.

4. The coal gangue roadbed filling compaction device according to claim 3, characterized in that, The support wheel assembly includes: Roller; A lifting support frame, wherein the lifting support frame is vertically arranged and the lower end of the lifting support frame is provided with rollers; A connecting plate is fixed to the upper side of the lifting bracket, and the connecting plate is fixedly connected to a corresponding vibration mechanism.

5. The coal gangue roadbed filling compaction device according to claim 4, characterized in that, The elastic element includes: The telescopic rod has its tubular components fixedly connected to the side wall of the vibrating plate of the outer shell, and its straight rod is movably inserted into the tubular components. A ball tube, one end of which is fixedly connected to the telescopic rod, and the other end of which is provided with an opening that communicates with the cavity inside the ball tube. The opening is a variable diameter tubular structure that narrows from the inside of the cavity to the outside. A ball is movably disposed inside the ball tube. The diameter of the ball is larger than the maximum diameter of the opening. When the ball abuts against the inner wall of the cavity opposite to the opening, at least one point on the ball protrudes to the outside of the opening. A compression spring is movably mounted on the telescopic rod, with one end of the compression spring abutting against the side wall of the vibrating plate and the other end of the compression spring abutting against one end of the ball tube.

6. The coal gangue roadbed filling compaction device according to claim 5, characterized in that, Insert at least one vibrating rod into the rubber frame into which the coal gangue is added. The vibrating rod is 3-5 cm away from the embankment. Start the vibrating rod to generate high-frequency vibration, which drives the coal gangue to vibrate, causing the coal gangue to be deposited and compacted downwards within the rubber frame.

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