Plug-in subsea tunnel side ditch cover plate

Abstract

The utility model relates to the field of subsea tunnel construction, in particular to a plug-in subsea tunnel side ditch cover plate. Comprising a cover plate body which is arranged at an opening of the side ditch, extends in the length direction of the side ditch and is used for blocking the side ditch; the supporting leg assembly comprises at least one first supporting leg and at least one second supporting leg, and the first supporting leg and the second supporting leg are symmetrically arranged on the two long edges of the cover plate body respectively; when the side ditch cover plate is in the initial state that the side ditch cover plate is not inserted into the side ditch, the first supporting leg, the second supporting leg and the cover plate body are arranged in the same plane. When the side ditch cover plate is in a working state of being inserted into the side ditch, the first supporting leg and the second supporting leg are located below the cover plate body and support the cover plate body; solid waste in a tunnel can be effectively isolated above the subsea tunnel side ditch, the situation that the solid waste falls into the side ditch to cause unsmooth drainage of the side ditch is prevented, and the insertion type subsea tunnel side ditch cover plate can be embedded into the side ditch and has high applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of submarine tunnel construction, especially relates to an insertion type submarine tunnel side ditch cover plate. BACKGROUND

[0002] Nowadays, the application of underwater immersed tube tunnels is more and more extensive in China. In order to reduce the volume of immersed tube prefabricated body, the free space outside the tunnel construction limit is very small for the immersed tube tunnel using onshore prefabricated underwater installation. Therefore, the drainage side ditch in the tunnel usually adopts the method of casting in-situ concrete side ditch on one side of the road.

[0003] The conventional road side ditch generally adopts prefabricated steel structure or reinforced concrete cover plate or grating. In the structure of immersed tube tunnel with narrow road limit space, the traditional method occupies more road space or it is difficult to process small size cover plate. Therefore, the in-situ concrete side ditch with small cross-sectional size is the mainstream method for tunnel drainage at present. However, the cross-sectional size of the side ditch is small, and manual troweling often causes differences in the internal cross-sectional size of the side ditch, which makes it difficult to install conventional concrete prefabricated cover plate or steel grating.

[0004] Due to the limitation of the lifting scale and size of the installation machinery, the size of the drainage side ditch of the existing immersed tube tunnel is relatively small and the structure is open. After the tunnel is put into operation, solid waste is likely to fall into the side ditch and cause blockage of the side ditch, which leads to the overflow of tunnel washing and sweeping water or tunnel entrance rainwater through the side ditch to the road surface, affecting the safety of vehicle driving. At the same time, it is difficult to wash and sweep the solid waste falling into the side ditch with cleaning machinery, and only manual cleaning can be carried out after the road is closed, which is time-consuming and labor-intensive. SUMMARY

[0005] In view of the deficiencies in the prior art, the utility model provides an insertion type immersed tube tunnel side ditch cover plate which is simple to process and install, can isolate the solid waste in the tunnel above the tunnel drainage side ditch, is suitable for small size side ditch of immersed tube tunnel, and can avoid the local size change caused by large error in manual troweling of in-situ concrete.

[0006] The utility model provides an insertion type immersed tube tunnel side ditch cover plate, the side ditch cover plate sets up in the side ditch of submarine tunnel, the side ditch cover plate includes:

[0007] The cover plate body is arranged at the opening of the side ditch and is a rectangular plate structure, which extends along the length direction of the side ditch and is used for plugging the side ditch.

[0008] The support leg assembly includes at least one first support leg and at least one second support leg, and the first support leg and the second support leg are symmetrically arranged on the two long edges of the cover plate body.

[0009] Among them,

[0010] When the edge ditch cover plate is in an initial state of not being inserted into the edge ditch, the first leg and the second leg are arranged coplanarly with the cover plate body, and the central axes of the first leg and the second leg are both perpendicular to the central axis of the cover plate body;

[0011] When the edge ditch cover plate is in a working state of being inserted into the edge ditch, the first leg and the second leg are located below the cover plate body for supporting the cover plate body, the plane where the first leg is located is parallel to the plane where the second leg is located, and the two planes are both perpendicular to the plane where the cover plate body is located.

[0012] In the technical solution, solid waste in the tunnel can be effectively isolated above the edge ditch of the submarine tunnel, and the solid waste is prevented from falling into the edge ditch to cause poor drainage of the edge ditch. The insertable edge ditch cover plate of the submarine tunnel can be embedded into the edge ditch, and has high applicability.

[0013] In some embodiments of the present application, the first leg is a rectangular plate structure, the first leg includes a straight section and a bent section, the straight section is parallel to the side wall of the edge ditch, the bent section extends to the other side wall of the edge ditch to form an arc-shaped structure, the bent section is located at the arc-shaped bottom of the edge ditch, and the curvature of the bent section is the same as the curvature of the bottom of the edge ditch;

[0014] The first leg and the second leg are the same in structure, the bending direction of the bent section of the second leg is opposite to the bending direction of the bent section of the first leg, when the cover plate body is crushed by a vehicle, the cover plate body moves downward, the bent sections of the first leg and the second leg are deformed symmetrically under pressure, a supporting force is generated on the cover plate body, the edge ditch cover plate is prevented from falling off or turning over, and after the vehicle has passed, the bent sections are reset, and the cover plate body is reset.

[0015] In some embodiments of the present application, when the number of the first leg and the second leg is both one, the first leg is arranged at one end of one long side of the cover plate body, and the second leg is arranged at the other end of the other long side of the cover plate body, so that the bent sections of the first leg and the second leg are deformed symmetrically under pressure, and a stable vertical supporting force is generated on the cover plate body.

[0016] In some embodiments of the present application, when the number of the first leg and the second leg is both greater than or equal to two, the first leg and the second leg are arranged on two long sides of the cover plate body, and the two first legs and the two second legs arranged oppositely are distributed in a staggered manner.

[0017] Alternatively, a plurality of the first legs are arranged at one end of a long side of the cover plate body, and a plurality of the second legs are arranged at the other end of the other long side of the cover plate body, so that the bending sections of the first legs and the second legs are symmetrically deformed when pressed, thereby generating a stable vertical supporting force on the cover plate body.

[0018] In some embodiments of the present application, the cover plate body is uniformly provided with water-permeable holes in the axial direction thereof, which are used to flow the accumulated water in the seabed tunnel into the edge ditch, thereby ensuring the drainage function of the edge ditch.

[0019] In some embodiments of the present application, the edge ditch cover plate is made of metal material, and the bending sections of the first legs and the second legs can adapt to the local size change of the small-size edge ditch of the tunnel due to the large error of the cast-in-place concrete manual leveling, so that the edge ditch cover plate can be tightly embedded into the edge ditch to compensate for the defect of uneven size, thereby having high applicability.

[0020] In some embodiments of the present application, the edge ditch cover plate is cut and made from a stainless steel plate, one stainless steel plate can make a plurality of the edge ditch cover plates, and welding is not required, thereby reducing pollution, facilitating on-site processing, and saving engineering cost.

[0021] In some embodiments of the present application, the cover plate body is consistent with the height of the asphalt pavement of the driving lane of the seabed tunnel, is used to cover the edge ditch and widen the width of the driving lane, and facilitates the road surface mechanical washing and sweeping.

[0022] Based on the above technical solution, the solid waste in the tunnel can be effectively isolated above the edge ditch of the seabed tunnel, and the solid waste is prevented from falling into the edge ditch to cause poor drainage of the edge ditch. For the case that the size of the inside of the edge ditch is uneven due to the manual leveling of the cast-in-place concrete small-size edge ditch, the inserted seabed tunnel edge ditch cover plate can be tightly embedded into the edge ditch to compensate for the defect of uneven size, thereby having high applicability.

[0023] The edge ditch cover plate can adapt to the actual line type and height of the edge ditch, ensure the integrity of the anti-collision curbstone concrete structure, and the arc section of the bending section can be directly placed on the bottom of the edge ditch, thereby being stable, safe and reliable after installation. The edge ditch cover plate has a bearing function, which indirectly widens the road width, and the edge ditch cover plate is supported within the curved surface range of the edge ditch, so that the edge ditch will not be overturned under the pressure of the vehicle, thereby being safe and reliable.

[0024] The steel plate is cut and bent on site, welding is not required, pollution is reduced, the installed cover plate after processing is convenient, engineering cost is saved, and maintenance in the later period is simple, thereby playing a positive role in the road maintenance of the immersed tunnel. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0026] Figure 1 Structure schematic view of the side ditch cover plate of the embodiment of the present application placed in the side ditch;

[0027] Figure 2 Structure schematic view of the initial state of the side ditch cover plate of the embodiment of the present application not placed in the side ditch;

[0028] Figure 3 Structure schematic view of the initial state of the side ditch cover plate of another embodiment of the present application not placed in the side ditch;

[0029] Figure 4 Structure schematic view of the initial state of the side ditch cover plate of another embodiment of the present application not placed in the side ditch;

[0030] Figure 5 Cutting processing lofting view of the side ditch cover plate of the embodiment of the present application.

[0031] In the drawings,

[0032] 10, side ditch; 11, side wall; 20, cover plate body; 21, water permeable hole; 30, first leg; 31, straight line segment; 32, bending part; 40, second leg. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] In the description of the present application, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] The terms "first," "second," and "third" 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. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] This embodiment provides an insertable side ditch cover for a submarine tunnel, such as... Figure 1 As shown, a ditch cover is installed within the ditch 10 of the submarine tunnel, and the ditch cover includes:

[0038] The cover plate body 20 is set at the opening of the side ditch 10. It is a rectangular plate structure that extends along the length of the side ditch and is used to seal the side ditch 10.

[0039] The support leg assembly includes at least one first support leg 30 and at least one second support leg 40, wherein the first support leg 30 and the second support leg 40 are symmetrically arranged on the two long sides of the cover plate body 20, respectively.

[0040] in,

[0041] like Figure 2 As shown, when the side ditch cover of this embodiment is in the initial state before being inserted into the side ditch 10, the first leg 30 and the second leg 40 are coplanar with the cover body 20, and the central axes of the first leg 30 and the second leg 40 are perpendicular to the central axis of the cover body 20.

[0042] When the side ditch cover plate of this embodiment is in the working state of being inserted into the side ditch 10, such as Figure 1 As shown, the first leg 30 and the second leg 40 are located below the cover plate body 20 and are used to support the cover plate body 20. The plane where the first leg 30 is located is parallel to the plane where the second leg 40 is located. Both are vertical planes, and both vertical planes are perpendicular to the horizontal plane where the cover plate body 20 is located.

[0043] The insertable submarine tunnel side ditch cover of this technical solution can effectively isolate solid waste in the tunnel above the submarine tunnel side ditch, preventing solid waste from falling into the side ditch 10 and causing poor drainage. The insertable submarine tunnel side ditch cover can be embedded into the side ditch and has high applicability.

[0044] As shown in Figure 1 , the first leg 30 is a rectangular plate structure, the first leg 30 includes a straight section 31 and a bending section 32, the straight section 31 is adjacent to the left side wall 11 of the ditch 10 and parallel to it, the bending section 32 extends to the right side wall 11 of the ditch 10 to form an arc structure, the bending section 32 is located at the arc bottom of the ditch 10, and the curvature of the bending section 32 is the same as that of the bottom of the ditch 10;

[0045] The first leg 30 and the second leg 40 are the same structure, the bending direction of the bending section of the second leg 40 is opposite to that of the first leg 30, the straight section of the second leg 40 is close to the right side wall 11, and the bending section bends to the left side wall 11; when the vehicle rolls over the cover plate body 20, the cover plate body 20 moves downward, the bending section of the first leg 30 is pressed to bend and deform to the right, and the bending section of the second leg 40 is pressed to bend and deform to the left, both of which symmetrically deform to generate a supporting force on the cover plate body 20, avoiding the ditch cover plate from falling off or overturning; after the vehicle rolls over, the bending section resets, and the cover plate body 20 resets accordingly.

[0046] As shown in Figure 2 , when the number of the first leg 30 and the second leg 40 is one, the first leg 30 is arranged at one end of one long side of the cover plate body 20, and the second leg 40 is arranged at the other end of the other long side of the cover plate body 20, so that the bending sections of the first leg 30 and the second leg 40 symmetrically deform when pressed to generate a stable vertical supporting force on the cover plate body 20, and the cover plate body 20 will not deviate left and right, avoiding overturning.

[0047] In another example of the present application, when the number of the first leg 30 and the second leg 40 is greater than or equal to two, the first leg 30 and the second leg 40 are evenly arranged on the two long sides of the cover plate body 20, and the opposite first leg 30 and the second leg 40 are distributed in a staggered manner; as shown in Figure 3 , when the number of the first leg 30 and the second leg 40 is three, they are evenly distributed at the two ends and the middle position of the two long sides of the cover plate body 20, and the first leg 30 and the second leg 40 at the ends are distributed in a staggered manner, and the first leg 30 and the second leg 40 at the middle position are distributed in a staggered manner, so that the bending sections of the first leg 30 and the second leg 40 symmetrically deform when pressed to generate a stable vertical supporting force on the cover plate body 20, and the cover plate body 20 will not deviate left and right, avoiding overturning.

[0048] In another embodiment of the present application, a plurality of first legs 30 are arranged at one end of one long side of the cover plate body 20, and a plurality of second legs 40 are arranged at the other end of the other long side of the cover plate body 20; as shown in Figure 4As shown, two first legs 30 are distributed at one end of one long side of the cover plate body 20, and two second legs 40 are arranged at the other end of the other long side of the cover plate body 20; the bending sections of the first legs 30 and the second legs 40 are symmetrically deformed when pressed, thereby generating stable vertical supporting force on the cover plate body 20, and the cover plate body 20 will not deviate left and right, thereby avoiding overturning.

[0049] Further, the cover plate body 20 is uniformly distributed with water permeable holes 21 in the axial direction thereof, and the water permeable holes 21 are used to flow the accumulated water in the seabed tunnel into the side ditch, thereby ensuring the drainage function of the side ditch, such as Figure 1 As shown, the cover plate body 20 of the embodiment is uniformly distributed with two rows of water permeable holes 21, thereby avoiding the accumulation of water on the cover plate body, and enabling the water flow to quickly flow into the side ditch for drainage.

[0050] Specifically, the side ditch cover plate 20 is made of metal material, and the bending portions 32 of the first legs 30 and the second legs 40 can adapt to the local size change of the small-size side ditch of the tunnel due to the large error of the cast-in-place concrete manual leveling, and the side ditch cover plate can be tightly embedded into the side ditch, thereby making up the defect of uneven size and having high applicability; in the embodiment, the side ditch cover plate is cut from a 5mm-thick stainless steel plate, and one steel plate can be used to manufacture multiple side ditch cover plates, such as Figure 5 As shown, welding is not required, thereby reducing pollution, facilitating on-site processing, and saving engineering cost.

[0051] Meanwhile, the cover plate body 20 is consistent with the height of the asphalt pavement of the driving lane of the seabed tunnel, is used to cover the side ditch 10 and widen the width of the driving lane, and facilitates the road surface mechanical washing and sweeping.

[0052] In the embodiment, a whole steel plate is first cut into multiple side ditch cover plates, and then transported to the construction area; the lower bending portions of the first legs and the second legs are bent into arc shapes at the construction site, the radii of the bending portions are consistent with the radius of the bottom of the side ditch, and then the multiple side ditch cover plates are sequentially inserted into the side ditch, thereby completing the installation of the side ditch cover plate.

[0053] Based on the above technical scheme, the solid waste in the tunnel can be effectively isolated above the side ditch of the seabed tunnel, thereby preventing the solid waste from falling into the side ditch to cause poor drainage of the side ditch; for the uneven size inside the side ditch caused by the manual leveling of the small-size cast-in-place concrete side ditch, the plug-in type seabed tunnel side ditch cover plate can be tightly embedded into the side ditch, thereby making up the defect of uneven size and having high applicability;

[0054] The side ditch cover plate can adapt to the actual line type and height of the side ditch, ensure the integrity of the anti-collision curb concrete structure, and the arc segment of the bending part can directly sit on the bottom of the side ditch, and after installation, it is stable, safe and reliable; The side ditch cover plate has a load-bearing function, which indirectly widens the road width, and the side ditch cover plate is supported in the side ditch curved surface range, and the side ditch will not overturn under the pressure of the vehicle, safe and reliable; The steel plate is cut and bent on site, without welding and reducing pollution, the installed cover plate is convenient, saves the engineering cost, and is easy to maintain in the later period, which plays a positive role in the road maintenance of the immersed tunnel.

[0055] It should be finally pointed out that: the various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to.

[0056] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones; without departing from the spirit of the technical scheme of the present application, all should be covered in the technical scheme range of the present application claimed by the present application.

Claims

1. An insertion-type undersea tunnel edge ditch cover, characterized by: The edge ditch cover plate is arranged in an edge ditch of a submarine tunnel, and the edge ditch cover plate comprises: a cover plate body arranged at an opening of the edge ditch, the cover plate body being a rectangular plate structure and extending along a length direction of the edge ditch and used for plugging the edge ditch; a leg assembly comprising at least one first leg and at least one second leg, the first leg and the second leg being symmetrically arranged on two long edges of the cover plate body respectively; wherein, when the edge ditch cover plate is in an initial state of not being inserted into the edge ditch, the first leg and the second leg are coplanar with the cover plate body, and central axes of the first leg and the second leg are perpendicular to a central axis of the cover plate body; when the edge ditch cover plate is in a working state of being inserted into the edge ditch, the first leg and the second leg are located below the cover plate body and used for supporting the cover plate body, a plane where the first leg is located is parallel to a plane where the second leg is located, and the two planes are both perpendicular to a plane where the cover plate body is located.

2. An insertable subsea tunnel skirting cover according to claim 1, wherein, The first leg is a rectangular plate structure, the first leg comprises a straight segment and a bent segment, the straight segment is parallel to a side wall of the edge ditch, the bent segment extends to another side wall of the edge ditch to form an arc structure, the bent segment is located at an arc-shaped bottom of the edge ditch, and an arc of the bent segment is the same as an arc of the bottom of the edge ditch; the first leg and the second leg are the same in structure, a bending direction of the bent segment of the second leg is opposite to a bending direction of the bent segment of the first leg, when a vehicle rolls over the cover plate body, the cover plate body moves downward, the bent segments of the first leg and the second leg are symmetrically deformed under pressure, a supporting force is generated on the cover plate body, and the edge ditch cover plate is prevented from falling off or overturning; after the vehicle rolls over, the bent segments reset, and the cover plate body resets accordingly.

3. An insertable subsea tunnel skirting cover according to claim 2, wherein, When the number of the first leg and the number of the second leg are both one, the first leg is arranged at one end of one long edge of the cover plate body, and the second leg is arranged at the other end of the other long edge of the cover plate body.

4. The insertable subsea tunnel skirt pan of claim 2, wherein, When the number of the first leg and the number of the second leg are both greater than or equal to two, the first leg and the second leg are uniformly arranged on the two long edges of the cover plate body, and oppositely arranged two first legs and two second legs are distributed in a staggered manner. Alternatively, a plurality of first legs are arranged at one end of one long edge of the cover plate body, and a plurality of second legs are arranged at the other end of the other long edge of the cover plate body.

5. The insertable subsea tunnel skirting cover of claim 1, wherein, The cover plate body is uniformly provided with water permeable holes in an axial direction of the cover plate body, and the water permeable holes are used for flowing water generated in the submarine tunnel into the edge ditch.

6. The insertable subsea tunnel skirting cover of claim 2, wherein, The edge ditch cover plate is made of metal, and the bent portions of the first leg and the second leg can adapt to local size changes of a small-size edge ditch of a tunnel caused by large errors in manual troweling of cast-in-place concrete.

7. The insertable subsea tunnel skirting cover of claim 1, wherein, The edge ditch cover plate is cut from a stainless steel plate, and one stainless steel plate can be used to manufacture a plurality of edge ditch cover plates.

8. An insertion-type submarine tunnel edge gutter cover according to claim 7, characterized in that, The cover plate body is consistent in height with an asphalt pavement of a driving lane of the submarine tunnel, and is used for covering the edge ditch and widening the width of the driving lane.

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