Covering assembly, side ditch structure and railway structure

Abstract

The invention discloses a covering assembly which comprises a geogrid (1) and check blocks (2), the check blocks (2) comprise a middle check block (201) and edge check blocks (202) arranged on the two sides of the middle check block (201), a plurality of through holes are formed in the middle check block (201) and the edge check blocks (202), the middle check block (201) and the edge check blocks (202) are arranged on the geogrid (1), and a plurality of through holes are formed in the middle check block (201) and the edge check blocks (202). The edge check block (202) is reversely wrapped by the side edge of the geogrid (1), and the edge check block (202) is used for being arranged on a supporting face of a side ditch. The covering assembly has high drainage capacity and can filter sundries and broken stones, and the horizontal stress applied to the slope is small. In addition, the invention further relates to a side ditch structure and a railway structure.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway drainage engineering, and in particular relates to a covering assembly. In addition, the present invention also relates to a side ditch structure and a railway structure Background Art Water is the main cause of road cutting diseases. In order to prevent external water media from entering the railway track bed, side ditches are usually set on both sides of the road cutting.

[0002] There is no covering protection and filtration measures on some existing side ditches. On the one hand, rainfall or external water flowing down the railway slope and blocky gravel media directly act on the side ditches, causing damage and cracking of the side ditches, and then causing the railway track bed to become unstable. On the other hand, debris or blocky gravel media will enter the drainage channel of the side ditch and block the drainage channel of the side ditch. There is a cover on another part of the existing side ditches, but the existing technology of covering will exert a large horizontal stress on the side ditches, causing damage and cracking of the side ditches, and then causing the railway track bed to become unstable. In addition, the universality of the existing technology of covering is poor and cannot adapt to ditches of different sizes.

[0003] In view of this, it is necessary to design a covering component that exerts less horizontal stress on the ditch. Summary of the invention

[0004] The technical problem to be solved by the first aspect of the present invention is to provide a covering assembly, which has a strong drainage capacity, can filter debris and gravel, and exerts less horizontal stress on the slope.

[0005] Furthermore, the technical problem to be solved by the second aspect of the present invention is to provide a ditch structure that allows water media to flow into the drainage channel, filters debris and gravel, and exerts less horizontal stress on the slope, thereby extending the service life of the ditch.

[0006] Furthermore, the technical problem to be solved by the third aspect of the present invention is to provide a railway structure having a longer service life.

[0007] In order to solve the above technical problems, the first aspect of the present invention provides a covering component, which includes a geogrid and a block, the block includes a middle block and edge blocks arranged on both sides of the middle block, the middle block and the edge block are both formed with a plurality of through holes, the middle block and the edge block are both arranged on the geogrid, the edge block is reversely covered by the side of the geogrid, and the edge block is used to be arranged on the supporting surface of the side ditch.

[0008] Preferably, the edge block and the middle block each include a plurality of granular stone boxes, and the plurality of granular stone boxes are arranged in an array on the geogrid.

[0009] Preferably, the geogrid comprises a first mesh surface and a second mesh surface sequentially arranged from top to bottom, and the tensile strength of the second mesh surface is greater than the tensile strength of the first mesh surface.

[0010] Preferably, the geogrid further comprises a plurality of support rods, and two ends of the plurality of support rods are respectively connected to the center position of the first mesh surface and the center position of the second mesh surface.

[0011] Based on the technical solution of the covering assembly of the present invention, the second aspect of the present invention further provides a ditch structure, which includes a supporting surface and a covering assembly described in any of the above technical solutions, and the edge covering member of the covering assembly is arranged on the supporting surface.

[0012] Preferably, the side ditch structure further comprises a ditch body and a rock-dropping platform, wherein the rock-dropping platform is arranged on both sides of the ditch body, and the rock-dropping platform can support the edge stopper on the side corresponding thereto.

[0013] Preferably, the ditch structure further comprises anchors for fixing the geogrid and / or the stopper to the rockfall platform.

[0014] Preferably, the groove body includes a rectangular groove body and an inverted trapezoidal groove body arranged from bottom to top.

[0015] Preferably, the side ditch structure further comprises an anti-seepage layer, and the anti-seepage layer is laid on the outside of the ditch body.

[0016] Based on the technical solutions of the covering assembly and the gutter structure of the present invention, the third aspect of the present invention further provides a railway assembly, which includes the covering assembly and / or the gutter structure described in any of the above technical solutions.

[0017] Through the above technical scheme, the covering component of the present invention includes a geogrid and a block, the block includes a middle block and edge blocks arranged on both sides of the middle block, the middle block and the edge blocks are arranged on the geogrid, and the edge blocks located on both sides of the middle block are respectively reversely covered by the side edges of the geogrid, the edge blocks are used to be arranged on the supporting surface of the ditch, the block is formed with a plurality of through holes to facilitate the flow of water media from the slope into the bottom of the ditch, and to filter debris and block-like gravel media rolling down the slope, and because the edge blocks are reversely covered by the geogrid, the force of the edge blocks is inward, thereby reducing the horizontal stress generated by the covering component on the slope, reducing the risk of damage and cracking of the ditch, and extending the service life of the ditch.

[0018] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like components throughout the drawings.

[0020] Figure 1 It is a structural schematic diagram of a side ditch structure according to a specific embodiment of the present invention; Figure 2 It is a schematic structural diagram of a geogrid according to a specific embodiment of the present invention; Figure 3 It is a cross-sectional structural diagram of a railway structure according to a specific embodiment of the present invention, wherein the cross section passes through a geogrid; Figure 4 It is a structural schematic diagram of a railway structure according to a specific embodiment of the present invention, with a cross section passing through a connecting plate; Figure 5 A top view of a geogrid and a connecting plate according to a specific embodiment of the present invention; Figure 6 It is a schematic structural diagram of a connecting plate according to a specific embodiment of the present invention.

[0021] Reference numerals: 1-geogrid; 101-support rod; 102-first mesh surface; 103-second mesh surface; 2-block; 201-middle block; 202-edge block; 3-grained stone box; 4-ditch body; 401-rectangular ditch body; 402-inverted trapezoidal ditch body; 5-rock falling platform; 6-anchor; 7-anti-seepage layer; 8-railway slope; 9-railway ballast; 10-connecting plate; 1001-main board; 1002-first side board; 1 003-second side plate; 1004-rotating plate; 1005-first rotating rod; 1006-second rotating rod; 1007-main rotating rod; 1008-first locking rod; 1009-second locking rod; 10010-locking ring; 11-vertical plate; 12-load-reducing layered plate; 13-heel plate; 14-drainage hole; 15-reinforcement tenon; 16-positioning plate; 17-ballast retaining block; 18-buttress plate; 19-support block. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] The present invention provides these embodiments to make the present invention thorough and complete, and fully express the scope of the present invention to those skilled in the art.It should be noted that: unless otherwise specifically stated, the relative arrangement and numerical values ​​of the parts and steps described in these embodiments should be interpreted as merely exemplary, rather than as limiting.

[0024] It should be noted that, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper" and "lower" and the like indicate positions or positional relationships only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0025] In addition, the words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0026] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0027] All terms used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0028] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0029] like Figure 1As shown, the covering assembly of the present invention includes a geogrid 1 and a block 2. The block 2 includes a middle block 201 and edge blocks 202 arranged on both sides of the middle block 201. The middle block 201 and the edge blocks 202 are both arranged on the geogrid 1. The edge blocks 202 are reversely covered by the sides of the geogrid 1. The edge blocks 202 on both sides of the middle block 201 are respectively arranged on the supporting surfaces (rock-falling platforms 5) on both sides of the ditch body. The middle block 201 and the edge blocks 202 are both formed with a plurality of through holes, which can not only ensure that the external water medium can pass through smoothly and flow into the drainage channel at the bottom of the ditch, but also filter the debris or the blocky gravel medium rolling down the slope to prevent the debris from entering and blocking the drainage channel. Figure 3 As shown, since the geogrid 1 of the present invention reversely covers the edge block 202, the force of the edge block 202 is directed inward, reducing the horizontal stress generated by the covering component on the slope. Therefore, the covering component of this embodiment reduces the horizontal stress generated by the railway slope 8 and the railway roadbed 9, reduces the risk of slope damage and cracking, and extends the service life of the slope.

[0030] In some specific embodiments, the block 2 uses a cover plate with holes, but the holes in the cover plate have a poor filtering effect on debris, and the holes will cause the structural strength of the cover plate to be low, which is easily damaged when affected by factors such as temperature changes. As a preferred embodiment, the middle block 201 and the edge block 202 each include a plurality of granular stone boxes 3, the granular stone boxes 3 include a box body and block granular stones filled in the box body, the box body wall is in a grid shape, and the plurality of granular stone boxes are arranged in an array on the geogrid 1. Figure 1As shown, the number of the gravel boxes 3 of the middle block 201 of this embodiment is six, the number of the gravel boxes 3 of the edge block 202 is two, one side of the geogrid 1 covers one gravel box 3 in the edge block 202, and the other side of the geogrid 1 covers another gravel box 3 in the edge block 202, the six gravel boxes 3 corresponding to the middle block 201 are arranged on the geogrid 1, and the six gravel boxes 3 corresponding to the middle block 201 are located between the two gravel boxes 3 corresponding to the edge block 202, and the gravel boxes are porous structures, which can not only ensure that the external water medium can pass through smoothly and flow into the ditch body, but also can filter the debris or the block gravel medium rolling down the slope to prevent the ditch body from being blocked, and compared with the cover plate with holes, the gravel boxes have a stronger filtering effect on the debris, a higher structural strength, and are not easily damaged by factors such as temperature changes. In some specific embodiments, the granular stone cage adopts a galvanized rust-proof granular stone cage, and the ratio of the particle size of the block granular stone to the aperture of the cage wall mesh is greater than or equal to 1.2. The installation process of the covering assembly of this embodiment is as follows: the geogrid 1 is laid on the ditch body 4, and then two edge granular stone cages are placed on the supporting surfaces (rock-falling platforms 5) on both sides of the ditch body 4, and then the side of the geogrid 1 is reversely covered with the edge granular stone cage, and finally six middle granular stone cages are stacked on the geogrid 1 between the two edge granular stone cages.

[0031] As a preferred embodiment, Figure 2 As shown, the geogrid 1 of this embodiment includes a first mesh surface 102 and a second mesh surface 103 arranged in sequence from top to bottom, and the tensile strength of the second mesh surface 103 is greater than the tensile strength of the first mesh surface 102. By setting the geogrid 1 as a double-layer structure, the geogrid 1 will not become loose after bearing its own weight and the weight of the granular stone mesh box 3 for a long time, so that the geogrid 1 maintains sufficient tension, thereby ensuring that the geogrid 1 can still effectively support the granular stone mesh box 3 after long-term service, and extending the service life of the cover assembly. In some specific embodiments, the geogrid 1 is a unidirectional geogrid or a bidirectional geogrid. In some preferred embodiments, the geogrid 1 is high-density polyethylene, so that the tensile strength of the geogrid 1 is not less than 50 kN / m, thereby improving the structural strength of the geogrid 1.

[0032] As a preferred embodiment, Figure 2 As shown, the geogrid 1 of this embodiment also includes a plurality of support rods 101, and the two ends of the plurality of support rods 101 respectively abut against the center position of the first mesh surface 102 and the center position of the second mesh surface 103. Through the arrangement of the support rods 101, a chord-like structure can be formed to lift up the first mesh surface 102 to form an inverted arch structure, thereby reserving a certain margin for the relaxation of the geogrid 1. In addition, the inverted arch structure can also reduce the accumulation of blocky gravel.

[0033] As a preferred embodiment, Figure 5 As shown, the geogrid 1 of the covering assembly is provided with a plurality of geogrids, and the covering assembly also includes a plurality of connecting plates 10, and a geogrid 1 is provided between two adjacent connecting plates 10, and the two ends of the geogrid 1 are detachably connected to the corresponding two connecting plates 10, respectively. When a blockage occurs somewhere in the ditch body, the connecting plate 10 and the geogrid 1 at the blocked position can be separated, and the ditch body can be cleaned by only removing the geogrid 1 at the corresponding position and the block 2 on the geogrid 1, without removing all the geogrids 1, making the cleaning work easier, and only removing one geogrid 1 will not affect the tension of other geogrids 1, thereby greatly improving the service life of the side ditch. In addition, in some embodiments, a plurality of through holes for drainage are formed on the connecting plate 10.

[0034] As a preferred embodiment, Figure 6As shown, considering that the geogrid 1 may be deformed during long-term service, causing the block 2 to fall and form a depression, the block gravel will accumulate in the depressed position, causing the block gravel to accumulate, in order to be able to adjust the tension of the geogrid 1 without removing the geogrid 1, the connecting plate 10 of the preferred embodiment includes a main board 1001, a first side plate 1002, a second side plate 1003, a distance adjusting member and a locking member, the first side plate 1002 is arranged on one side of the main board 1001, the geogrid 1 close to the first side plate 1002 is hung on the first side plate 1002, and the second side plate 1003 is arranged on the main board On the other side of 1001, the geogrid 1 close to the second side plate 1003 is hung on the second side plate 1003, and the distance adjusting member includes a rotating plate 1004, a first rotating rod 1005, a second rotating rod 1006 and a main rotating rod 1007. The first rotating rod 1005 is arranged on the first side plate 1002 and is fixedly connected to the first side plate 1002, the second rotating rod 1006 is arranged on the second side plate 1003 and is fixedly connected to the second side plate 1003, the main rotating rod 1007 is arranged on the main board 1001 and is fixedly connected to the main board 1001, one end of the rotating plate 1004 is rotatably connected to the first rotating rod 1005, and the rotating rod 1006 is fixedly connected to the main board 1001. The other end of the movable plate 1004 is rotatably connected to the second rotating rod 1006, the middle part of the rotating plate 1004 is rotatably connected to the main rotating rod 1007, the locking member includes a first locking rod 1008, a second locking rod 1009 and a locking ring 10010, the first locking rod 1008 is arranged on the first side plate 1002 and is fixedly connected to the first side plate 1002, the second locking rod 1009 is arranged on the main board 1001 and is fixedly connected to the main board 1001, one end of the locking ring 10010 is rotatably connected to the first locking rod 1008, the other end of the locking ring 10010 is sleeved on the second locking rod 1009 and is fixedly connected to the second locking rod The fixed rod 1009 is detachably connected. During the construction process, the other end of the locking ring 10010 is not connected to the second locking rod 1009. Under the tension of the geogrid 1, the rotating plate 1004 is perpendicular to the main board 1001, the first side plate 1002 and the second side plate 1003. When the geogrid 1 is deformed, the locking ring 10010 is pulled to make the rotating plate 1004 rotate clockwise or counterclockwise, and the first side plate 1002 and the second side plate 1003 move toward the main board 1001, and the locking ring 10010 is sleeved on the second locking rod 1009, thereby realizing the re-tensioning of the geogrid 1.

[0035] As a preferred embodiment, Figure 4As shown, the covering assembly also includes two positioning plates 16. The inner sides of the connecting plates 10 are respectively connected to the two sides of the ditch body 4 through the two positioning plates 16. The surfaces of the positioning plates 16 in contact with the side ditch are conformal to the side ditch. In this way, on the one hand, during the construction process, the positioning plates 16 are directly placed in the ditch body 4, so that the connecting plates 10 can be stably installed, and the operation is simple; on the other hand, the positioning plates 16 can be stably clamped in the ditch body 4, thereby improving the stability of the connecting plates 10, and then improving the stability of the covering assembly.

[0036] As a preferred embodiment, Figure 4 As shown, the covering assembly of this embodiment also includes a vertical plate 11, a load-reducing layered plate 12 and a heel plate 13. The connecting plate 10 is set above the ditch body 4, one end of the heel plate 13 is inserted into the railway track bed, and the other end of the heel plate 13 is fixedly connected to the connecting plate 10. The vertical plate 11 is arranged on the upper surface of the connection between the heel plate 13 and the connecting plate 10 in the vertical direction, so that the vertical plate 11, the connecting plate 10 and the heel plate 13 form an inverted T shape, and the other end of the load-reducing layered plate 12 is fixedly connected to the vertical plate 11 When the covering assembly is applied to the railway ditch, one end of the load-reducing layered plate 12 is inserted into the railway track bed. The covering assembly provides lateral constraints to the ballast after the track is lifted through the vertical plate 11, the heel plate 13, the connecting plate 10 and the load-reducing layered plate 12, so as to avoid the problems of the ballast occupying the ditch and damaging the ditch. At the same time, when encountering continuous or short-term heavy rainfall, the covering assembly can effectively prevent rainwater from penetrating into the railway track bed, significantly improve the flood control and resistance capacity of the railway track bed, and maintain the stability of the railway track bed. On the other hand, by setting the load-reducing layered plate 12, the load-reducing layered plate 12 divides the railway track bed soil into at least two layers in the vertical direction. The vertical plate 11 and the load-reducing layered plate 12 only need to bear the soil pressure of the corresponding layer, so that the soil pressure on the ballast plate can be evenly distributed, and the lateral pressure of the ballast on the lower part of the vertical plate 11 can be reduced. On the other hand, the connecting plate 10 is equivalent to the wall toe plate in the ballast retaining plate. The connecting plate 10, the heel plate 13 and the vertical plate 11 form an inverted T-shape, which can greatly improve the bending moment and bending performance of the overall structure. In addition, since the connecting plate 10 is connected to the geogrid 1, the geogrid 1 is laid with the block 2, the geogrid 1 and the block 2 can increase the counterweight of the connecting plate 10, thereby making the structure of the vertical plate 11, the heel plate 13 and the load-reducing layered plate 12 more stable.

[0037] As a preferred embodiment, Figure 4 As shown, the load-reducing layered plate 12 is inclined upward in a direction gradually away from the vertical plate 11. Since the load-reducing layered plate 12 has a certain slope, it can guide the water medium in the railway track bed so that the water medium can quickly flow out of the railway track bed to avoid flooding the railway track bed.

[0038] As a specific implementation method, Figure 4As shown, a plurality of load-reducing layered plates 12 are arranged along the vertical direction of the vertical plate 11. In some specific application cases of the covering assembly, such as being applied to a railway track bed with a trapezoidal structure, the trapezoidal structure makes the soil pressure at the bottom of the railway track bed often greater than the soil pressure at the top. In some preferred embodiments, the length of the load-reducing layered plates 12 from top to bottom along the vertical plate 11 gradually increases, and accordingly, the length of the load-reducing layered plates 12 inserted into the railway track bed also gradually increases. Since there is a gap between the vertical plate 11 and the railway track bed with a trapezoidal structure, the ballast will enter the gap. In some preferred embodiments, the covering assembly further includes a ballast retaining block 17, which is arranged on the upper surface of the load-reducing layered plate 12 and is connected to the ballast on the side facing the railway track bed. In this way, by setting the ballast retaining block 17, each layer of ballast can be laterally limited.

[0039] As a preferred embodiment, Figure 4 As shown, a drainage hole 14 can be provided on the vertical plate 11. The drainage hole 14 is provided at the connection between the vertical plate 11 and the load-reducing layered plate 12 and is located on the upper surface of the load-reducing layered plate 12. The axial direction of the drainage hole 14 is the same as the setting direction of the load-reducing layered plate 12, that is, the slope of the drainage hole 14 is the same as the slope of the load-reducing layered plate 12. In this way, the water medium in the soil of different layers of the railway ballast can flow along the load-reducing layered plate 12 to the connection between the loading plate and the vertical plate 11, and be discharged through the drainage hole 14, further improving the drainage performance.

[0040] As a preferred embodiment, Figure 4 As shown, the covering assembly further includes a reinforcing tenon 15, which is arranged on the lower surface of the heel plate 13 and is located below the edge of the railway track bed, and the reinforcing tenon 15 is inserted into the railway track bed. In this way, by setting the reinforcing tenon 15, the ballast retaining assembly can be firmly connected to the soil under the railway track bed, thereby improving the anti-slip stability of the ballast retaining assembly.

[0041] Considering that the vertical plate 11 is the main force-bearing component, in order to improve its stability, as a preferred embodiment, Figure 4 As shown, the covering assembly further includes a buttress plate 18, which is arranged at the connection between the vertical plate 11 and the connecting plate 10, and is located on the side of the vertical plate 11 facing away from the railway track bed. The cross-sectional shape of the buttress plate 18 of this embodiment is a right triangle, so that it can be tightly clamped at the connection between the vertical plate 11 and the connecting plate 10, stably supporting the lower part of the vertical plate 11, thereby improving the overall stability of the vertical plate 11.

[0042] As a preferred embodiment, Figure 4As shown, in order to improve the stability of the load-reducing layered plate 12, the above-mentioned ballast retaining assembly also includes a support block 19, which is arranged at the connection between the load-reducing layered plate 12 and the vertical plate 11, and is located on the lower surface of the load-reducing layered plate 12. Through the setting of the support block 19, the end of the load-reducing layered plate 12 close to the vertical plate 11 can be stably supported, thereby improving the overall stability of the load-reducing layered plate 12.

[0043] On the basis of the covering assembly mentioned in the above technical solution of the present invention, the present invention further provides a side ditch structure, which includes a support surface and the above-mentioned covering assembly of the present application, and the edge stopper 202 of the covering assembly is arranged on the support surface. The covering assembly is arranged above the ditch body 4 under the support of the support surface, so that the covering assembly can not only allow rainfall or external water medium left along the slope to flow from the through hole of the covering assembly into the drainage channel at the bottom of the ditch body 4, but also filter out debris and block gravel to avoid blocking the drainage channel, and the horizontal stress generated by the covering assembly on the side ditch is small, and the slope is not easily damaged and cracked.

[0044] As a preferred embodiment, Figure 1 As shown, the side ditch structure of this embodiment also includes a ditch body 4 and a rock drop platform 5. The rock drop platforms 5 are provided on both sides of the ditch body 4. The rock drop platforms 5 on both sides of the ditch body are respectively used to support the edge block 202 on the corresponding side. The rock drop platform 5 is used to support the covering assembly on the one hand, and can reduce the potential energy of the external water medium and block gravel flowing down rapidly along the edge of the road cut during rainfall and waves, so as to reduce the impact of the external water medium and block gravel flowing down rapidly along the edge of the road cut on the ditch body 4 and the covering assembly, and reduce the impact damage of the external medium on the ditch body 4 and the covering assembly. In addition, the existing side ditch cover is usually embedded / built-in, and a groove needs to be excavated in the ditch body 4. The cover needs to be tailored according to the actual situation of the groove, which is not universal. The covering assembly of the above embodiment of the present invention is an external type, which has a better covering effect on the ditch body 4, does not require additional excavation of grooves, and the covering assembly can adjust the size of the covering assembly by adjusting the number of granular stone boxes 3, so that the covering assembly can adapt to ditch bodies of different sizes, and has good universality.

[0045] As a preferred embodiment, Figure 1 As shown, the side ditch structure also includes an anchor 6 for fixing the geogrid 1 and / or the block 2 to the rock platform 5, so as to enhance the connection strength between the cover assembly and the rock platform 5 and enhance the integrity of the side ditch structure. In some specific embodiments, the anchor 6 is a U-shaped nail, the arc section of the U-shaped nail is set in the stone mesh box 3, and the two rods of the U-shaped nail pass through the stone mesh box 3 and the geogrid 1 and then are inserted into the rock platform 5, so as to fix the geogrid 1 and the stone mesh box 3 to the rock platform 5, thereby enhancing the integrity of the side ditch structure.

[0046] As a preferred embodiment, Figure 1 As shown, the ditch body 4 of this embodiment includes a rectangular ditch body 401 and an inverted trapezoidal ditch body 402 arranged from bottom to top. Compared with the traditional rectangular ditch body or inverted trapezoidal ditch body, this embodiment adopts a combined structure of inverted trapezoid and rectangle. Under the premise that the excavation project is not increased much, the rectangular ditch body 401 can ensure that the side ditch structure has a sufficiently wide drainage channel, that is, a drainage area. At the same time, on the one hand, the inverted trapezoidal ditch body 402 can guide the flow of the external water body so that it can flow smoothly into the drainage channel and reduce the accumulation of water medium near the railway slope 8. On the other hand, the inverted trapezoidal ditch body 402 can effectively buffer the external water body and reduce the impact on the bottom of the ditch body 4. In some specific embodiments, in order to ensure sufficient drainage area, the width of the rectangular ditch body 401 is greater than or equal to 50 cm, for example, 80 cm or 120 cm. In some preferred embodiments, the slope of the inverted trapezoidal ditch body 402 is α, 0.5%≤α≤5%, so as to balance its buffering property to the external water body and the fluidity of the external water body, so that the external water body is not easy to gather, and at the same time, the external water body is effectively buffered. The side ditch structure of the present invention has a simple structure, convenient construction, and a long service life and drainage capacity.

[0047] As a preferred embodiment, Figure 1 As shown, the side ditch structure of this embodiment also includes an anti-seepage layer 7, which is laid on the outside of the ditch body 4. In some preferred embodiments, the anti-seepage layer 7 includes two stacked layers of geotextiles and a bentonite layer between the two stacked layers of geotextiles. The mass of bentonite per unit area of ​​the anti-seepage layer 7 is not less than 4.0 kg / m2. Through the provision of the anti-seepage layer 7, when the ditch body structure has unforeseen cracks and water seepage, the bentonite in the anti-seepage layer 7 can change from disordered to orderly expansion, so that under the limiting effect of the two layers of geotextiles, the anti-seepage layer 7 itself is dense, thereby having waterproof and anti-seepage effects.

[0048] On the basis of the covering assembly and the railway structure mentioned in the above technical solution of the present invention, the present invention further provides a railway structure, which includes the covering assembly and the gutter structure mentioned in the present application.

[0049] It can be seen from the above description that the advantages of the present invention are: first, the covering component of the present invention can not only ensure that the external water medium can penetrate smoothly and flow into the ditch body, but also can filter the debris or the block gravel medium rolling down the railway slope to prevent the ditch body from being blocked. The structural strength of the covering component is relatively high and the universality is good. The covering component is external and can better cover the ditch body structure; second, the geogrid of the present invention is a double-layer structure and forms an inverted arch structure. The structural strength of the geogrid is relatively high, which is conducive to reducing the accumulation of block gravel; third, the ditch body of the present invention adopts a combination structure of an inverted trapezoid and a rectangle, with a large drainage area and convenient application. Small amount of work; Fourth, the geogrid of the present invention reversely covers the edge block, which generates less horizontal stress on the railway slope side and the railway roadbed side, prolongs the service life of the railway structure, and arranges anchors to fix the covering structure on the rock-dropping platform, thereby increasing the integrity of the side ditch structure; Fifth, the rock-dropping platform of the present invention eliminates the potential energy of external water bodies and blocky gravel media, reduces the impact damage of external media to the side ditch, and avoids the accumulation of external water media through the inverted trapezoidal ditch body; Sixth, an anti-seepage layer is arranged on the outside of the ditch body of the side ditch structure of the present invention. When cracks and water seepage occur in the ditch body structure, the anti-seepage layer expands itself to play a waterproof and anti-seepage role.

[0050] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0052] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A covering component, characterized in that: The invention comprises a geogrid (1) and a block (2), wherein the block (2) comprises a middle block (201) and edge blocks (202) arranged on both sides of the middle block (201), the middle block (201) and the edge blocks (202) are both formed with a plurality of through holes, the middle block (201) and the edge blocks (202) are both arranged on the geogrid (1), the edge blocks (202) are reversely covered by the side edges of the geogrid (1), and the edge blocks (202) are used to be arranged on the supporting surface of the side ditch.

2. The covering assembly according to claim 1, characterized in that The edge block (202) and the middle block (201) both include a plurality of granular stone boxes (3), and the plurality of granular stone boxes (3) are arranged in an array on the geogrid (1).

3. The covering assembly according to claim 1, characterized in that The geogrid (1) comprises a first mesh surface (102) and a second mesh surface (103) which are arranged in sequence from top to bottom, and the tensile strength of the second mesh surface (103) is greater than the tensile strength of the first mesh surface (102).

4. The covering assembly according to claim 3, characterized in that The geogrid (1) further comprises a plurality of support rods (101), wherein two ends of the plurality of support rods (101) are respectively connected to the center position of the first mesh surface (102) and the center position of the second mesh surface (103).

5. A side ditch structure, characterized in that: It comprises a supporting surface and a covering assembly according to any one of claims 1 to 4, wherein the edge stopper (202) of the covering assembly is arranged on the supporting surface.

6. The side ditch structure according to claim 5, characterized in that: It also comprises a ditch body (4) and a rock-dropping platform (5), wherein the rock-dropping platform (5) is arranged on both sides of the ditch body (4), and the rock-dropping platform (5) is capable of supporting the edge stopper (202) on the side corresponding thereto.

7. The side ditch structure according to claim 6, characterized in that: It also includes an anchor (6) for fixing the geogrid (1) and / or the stopper (2) to the rockfall platform (5).

8. The side ditch structure according to claim 6, characterized in that: The groove body (4) comprises a rectangular groove body (401) and an inverted trapezoidal groove body (402) arranged from bottom to top.

9. The side ditch structure according to any one of claims 6 to 8, characterized in that: It also comprises an anti-seepage layer (7), wherein the anti-seepage layer (7) is laid on the outside of the trench body (4).

10. A railway structure, characterized in that: The invention comprises a covering assembly according to any one of claims 1 to 4 and a gutter structure according to any one of claims 5 to 9.

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