Water stop reinforcing tunnel structure

Abstract

The invention discloses a water stop reinforcing tunnel structure which comprises a plurality of tunnel pipe sections connected end to end, each tunnel pipe section comprises a reinforcing outer pipe, and the outer wall of each reinforcing outer pipe is coated with a corrosion-resistant film layer; the composite lining pipe is coaxially arranged in the reinforced outer pipe and comprises a waterproof plate layer, a heat preservation layer, a steel plate layer and a concrete layer which are sequentially arranged from inside to outside; the reinforcing layer is embedded between the reinforcing outer pipe and the composite lining pipe and comprises a supporting framework and cement, the supporting framework is connected to the reinforcing outer pipe and the waterproof plate layer in a supporting mode, and the cement is poured between the reinforcing outer pipe and the waterproof plate layer. The problems that in the construction process of the underground excavation tunnel penetrating through the river channel, riverbed water seepage exists, and the risk of tunnel collapse is high are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, and in particular to a water-stopping and reinforced tunnel structure. Background Art

[0002] When a tunnel is cut under a river, due to the poor geology of such areas, the riverbed is seriously silted all year round, and the continuous scouring of domestic sewage and industrial wastewater has caused the riverbed to be seriously corrosive. In addition, the tunnel is close to the riverbed surface, making its construction difficult. During the construction of a tunnel cut under a river, there are risks such as riverbed seepage, tunnel collapse, and surface subsidence. Summary of the invention

[0003] In order to overcome the defects of the prior art, a water-stopping reinforced tunnel structure is now provided to solve the problem of high risk of riverbed seepage and tunnel collapse in the dark excavation tunnel construction process under the river.

[0004] In order to achieve the above object, a water-stopping and reinforced tunnel structure is provided, comprising a plurality of tunnel pipe sections connected end to end, wherein the tunnel pipe sections include:

[0005] A reinforced outer tube, wherein the outer wall of the reinforced outer tube is coated with a corrosion-resistant film layer;

[0006] The composite inner liner pipe is coaxially arranged in the reinforced outer pipe, and comprises a waterproof board layer, a thermal insulation layer, a steel plate layer and a concrete layer arranged in sequence from the inside to the outside;

[0007] The reinforcement layer embedded between the reinforced outer tube and the composite inner lining tube includes a support frame and cement. The support frame is supported and connected to the reinforced outer tube and the waterproof board layer. The cement is poured between the reinforced outer tube and the waterproof board layer.

[0008] Furthermore, the corrosion-resistant membrane layer is a geomembrane.

[0009] Furthermore, the supporting frame includes a top beam, a support beam and a load-releasing beam, the top beam is supported between the bottom of the reinforced outer tube and the waterproof board layer, the support beam is supported between the side of the reinforced outer tube and the waterproof board layer, and the load-releasing beam is supported between the top of the reinforced outer tube and the waterproof board layer.

[0010] Furthermore, the unloading beam comprises:

[0011] Two diagonal brace plates, one end of the two diagonal brace plates are connected together at an angle and supported on the inner wall of the reinforced outer tube, and the other end of the two diagonal brace plates is formed with a supporting flange, and the supporting flange is supported on the waterproof board layer;

[0012] A support plate connected between the middle portions of the two support plates;

[0013] A plug-in rod is connected to one end of the two support plates, and the plug-in rod passes through the reinforced outer tube and is inserted into the rock layer outside the reinforced outer tube.

[0014] Furthermore, the support frame also includes a support grid, which is supported and connected between the bottom of the reinforced outer tube and the waterproof board layer, and the support grid is arranged in a circle along the circumferential direction of the reinforced outer tube.

[0015] Furthermore, the outer side of the concrete layer is coated with an anti-corrosion topcoat.

[0016] The beneficial effect of the present invention is that the water-stopping reinforced tunnel structure of the present invention can form a complete support frame by arranging support grids, support beams, top beams, high-strength cement and load-relief beams, thereby improving the support effect, ensuring the compressive strength of the tunnel pipe sections, and reducing the probability of local collapse.

[0017] The water-stopping reinforced tunnel structure of the present invention has a double waterproof and anti-seepage design by arranging a corrosion-resistant film layer, a reinforced outer pipe and a waterproof board layer, which can effectively improve the waterproof effect of the device and avoid water seepage in the tunnel pipe section.

[0018] The water-stopping reinforced tunnel structure of the present invention can not only play the role of thermal insulation by arranging the thermal insulation layer and the steel plate layer, but also avoid the influence of temperature changes on the internal metal parts of the device. The design of the steel plate layer can improve the strength of the composite lining pipe. By arranging the concrete layer and the anti-corrosion topcoat, the anti-corrosion and waterproof ability of the inner cavity of the tunnel pipe segment can be improved to avoid the phenomenon of wall skin falling. By arranging the support plate, the two sides of the load-removing beam are supported, and the pressure resistance of the load-removing beam is effectively improved. By arranging the plug-in rod, the load-removing beam can be fixed to the rock layer outside the tunnel pipe segment to ensure the stability of the load-removing beam. By arranging the support flange, the force can be shared to avoid damage to the surface of the waterproof plate layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0020] Figure 1 It is a structural schematic diagram of a water-stopping reinforced tunnel structure according to an embodiment of the present invention.

[0021] Figure 2 Schematic diagram of the structure of the reinforcement layer according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic structural diagram of a load-releasing beam according to an embodiment of the present invention.

[0023] Figure 4 It is a cross-sectional view of a composite liner pipe according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It should also be noted that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Reference Figures 1 to 4 As shown, the present invention provides a water-stopping and reinforced tunnel structure, comprising a plurality of tunnel pipe segments A. The plurality of tunnel pipe segments A are connected end to end.

[0027] Specifically, the tunnel pipe segment A includes: a reinforced outer pipe 1, a composite lining pipe 2, and a reinforcement layer 3.

[0028] See also Figure 1 and Figure 2 The cross section of the reinforced outer tube 1 is in an arch shape, with a round top and a flat bottom. The outer wall of the reinforced outer tube 1 is coated with a corrosion-resistant film layer.

[0029] In this embodiment, the corrosion-resistant membrane layer is a geomembrane, and the geomembrane is a corrosion-resistant geomembrane.

[0030] The composite inner liner pipe 2 is coaxially arranged in the reinforced outer pipe 1. The composite inner liner pipe 2 includes a waterproof board layer 21, a thermal insulation layer 22, a steel plate layer 23 and a concrete layer 24 which are arranged in sequence from the inside to the outside.

[0031] The reinforcement layer 3 is embedded between the reinforced outer tube 1 and the composite inner liner 2. The reinforcement layer 3 includes a support frame and cement. The support frame is supported and connected to the reinforced outer tube 1 and the waterproof board layer 21. The cement is poured between the reinforced outer tube 1 and the waterproof board layer 21.

[0032] In this embodiment, the cement is high-strength cement.

[0033] See also Figure 2 and Figure 3 As shown, the support frame includes a top beam 31, a support beam 32 and a load-releasing beam 33. The top beam 31 is supported between the bottom of the reinforced outer tube 1 and the waterproof board layer 21. The support beam 32 is supported between the side of the reinforced outer tube 1 and the waterproof board layer 21. The load-releasing beam 33 is supported between the top of the reinforced outer tube 1 and the waterproof board layer 21.

[0034] Specifically, the unloading beam 33 includes two diagonal support plates 331 , a support plate 334 and a plug-in rod 332 .

[0035] One end of the two diagonal bracing plates 331 is connected together at an angle. One end of the two diagonal bracing plates 331 is supported on the inner wall of the reinforced outer tube 1. The other end of the two diagonal bracing plates 331 is formed with a supporting flange 334. The supporting flange is supported on the waterproof board layer 21.

[0036] The support plate 334 is connected between the middle portions of the two support plates 334 .

[0037] The plug rod 332 is connected to one end of the two support plates 334. The plug rod 332 penetrates the reinforced outer tube 1 and is inserted into the rock layer outside the reinforced outer tube 1.

[0038] In this embodiment, the support frame further comprises a support grid 34. The support grid is a geogrid.

[0039] The support grid 34 is supported and connected between the bottom of the reinforced outer tube 1 and the waterproof board layer 21. The support grid 34 is arranged along the circumferential direction of the reinforced outer tube 1 in a circle.

[0040] The outer side of the concrete layer 24 is coated with an anti-corrosion topcoat.

[0041] The tunnel pipe section of the water-stopping reinforced tunnel structure of the present invention comprises a corrosion-resistant film layer, a reinforced outer pipe is bonded to the inner side of the corrosion-resistant film layer, a reinforced layer is arranged on the inner side of the reinforced outer pipe, and a composite inner lining pipe is arranged on the inner side of the reinforced layer.

[0042] The strengthening layer includes a support beam, a top beam and a load-releasing beam. The load-releasing beam is located at the arc portion of the reinforced outer tube. The support beam is located at both sides of the reinforced outer tube. The top beam is located at the bottom of the reinforced outer tube.

[0043] The inner wall of the reinforced outer pipe is fixedly connected with a supporting grid, and high-strength cement is poured into the gaps of the supporting grid.

[0044] A composite lining pipe is fixedly arranged in the inner cavity of the reinforcement layer.

[0045] The composite liner pipe comprises a waterproof board layer, a thermal insulation layer, a steel board layer and a concrete layer. The outer side of the waterproof board layer is fixedly connected to the inner wall of the reinforcement layer.

[0046] The inner wall of the waterproof board layer is bonded to the outer side of the thermal insulation layer. The inner side of the thermal insulation layer is bonded to the outer side of the steel plate layer.

[0047] The water-stopping reinforced tunnel structure of the present invention, by providing a thermal insulation layer and a steel plate layer, can not only play a role in thermal insulation and avoid the influence of temperature changes on the internal metal parts of the device, but the design of the steel plate layer can also improve the strength of the composite liner pipe.

[0048] The water-stopping reinforced tunnel structure of the present invention has a concrete layer coated on the inner side of the steel plate layer, and an anti-corrosion topcoat coated on the inner side of the concrete layer.

[0049] The water-stopping reinforced tunnel structure of the present invention can improve the anti-corrosion and waterproofing ability of the inner cavity of the tunnel pipe segment 1 by providing a concrete layer and an anti-corrosion topcoat, thereby avoiding the phenomenon of wall skin falling off.

[0050] In the water-stopping reinforced tunnel structure of the present invention, the upper end of the inner cavity of the force-relief beam is fixedly connected to the second reinforcing plate, and the lower end of the inner cavity of the force-relief beam is fixedly connected to the supporting plate.

[0051] The water-stopping reinforced tunnel structure of the present invention can support both sides of the load-removing beam by arranging the support plate and the second reinforcing plate, thereby effectively improving the pressure resistance of the load-removing beam.

[0052] The top of the force unloading beam is fixedly connected with a plug-in rod, and the surface of the plug-in rod is provided with threads.

[0053] The water-stopping reinforced tunnel structure of the present invention can fix the unloading beam to the rock layer outside the tunnel pipe section by arranging the plug-in rod, thereby ensuring the stability of the unloading beam.

[0054] In the water-stopping reinforced tunnel structure of the present invention, both sides of the lower end of the force-removing beam are fixedly connected with supporting flanges, and the bottom of the supporting flange is in contact with the outer wall of the waterproof board layer.

[0055] The water-stopping reinforced tunnel structure of the present invention can play a role in sharing the force and avoid damage to the surface of the waterproof board layer by arranging the supporting flange.

[0056] In the water-stopping reinforced tunnel structure of the present invention, the thickness of the reinforced outer tube is greater than the thickness of the corrosion-resistant film layer, and the thickness of the reinforced outer tube is 10 mm.

[0057] The water-stopping reinforced tunnel structure of the present invention has a double waterproof and anti-seepage design by arranging a corrosion-resistant film layer, a reinforced outer pipe and a waterproof board layer on the tunnel pipe section, which can effectively improve the waterproof effect of the device and avoid water seepage in the tunnel pipe section.

[0058] The water-stopping reinforced tunnel structure of the present invention can form a complete support frame by arranging support grids, support beams, top beams, high-strength cement and load-releasing beams, thereby improving the support effect, ensuring the compressive strength of the tunnel pipe sections and avoiding local collapse.

[0059] The water-stopping reinforced tunnel structure of the present invention has a double waterproof and anti-seepage design by arranging a corrosion-resistant film layer, a reinforced outer pipe and a waterproof board layer, which can effectively improve the waterproof effect of the device and avoid water seepage in the tunnel pipe section.

[0060] The water-stopping reinforced tunnel structure of the present invention can not only play the role of thermal insulation by arranging the thermal insulation layer and the steel plate layer, but also avoid the influence of temperature changes on the internal metal parts of the device. In addition, the design of the steel plate layer can improve the strength of the composite lining pipe. By arranging the concrete layer and the anti-corrosion topcoat, the anti-corrosion and waterproof ability of the inner cavity of the tunnel pipe segment can be improved to avoid the phenomenon of wall skin falling. By arranging the support plate and the second reinforcement plate, the two sides of the load-removing beam can be supported, and the pressure resistance of the load-removing beam can be effectively improved. By arranging the plug-in rod, the load-removing beam can be fixed to the rock layer outside the tunnel pipe segment to ensure the stability of the load-removing beam. By arranging the supporting flange, the force can be shared to avoid damage to the surface of the waterproof plate layer.

[0061] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A water-stopping and reinforced tunnel structure, characterized in that: It comprises a plurality of tunnel pipe sections connected end to end, and the tunnel pipe sections include: A reinforced outer tube, wherein the outer wall of the reinforced outer tube is coated with a corrosion-resistant film layer; The composite inner liner pipe is coaxially arranged in the reinforced outer pipe, and comprises a waterproof board layer, a thermal insulation layer, a steel plate layer and a concrete layer arranged in sequence from the inside to the outside; The reinforcement layer embedded between the reinforced outer tube and the composite inner lining tube includes a support frame and cement. The support frame is supported and connected to the reinforced outer tube and the waterproof board layer. The cement is poured between the reinforced outer tube and the waterproof board layer.

2. The water-stopping and reinforced tunnel structure according to claim 1, characterized in that: The corrosion-resistant membrane layer is a geomembrane.

3. The water-stopping and reinforced tunnel structure according to claim 1, characterized in that: The supporting frame includes a top beam, a supporting beam and a load-releasing beam. The top beam is supported between the bottom of the reinforced outer tube and the waterproof board layer, the supporting beam is supported between the side of the reinforced outer tube and the waterproof board layer, and the load-releasing beam is supported between the top of the reinforced outer tube and the waterproof board layer.

4. The water-stopping and reinforced tunnel structure according to claim 3 is characterized in that: The load-releasing beam comprises: Two diagonal brace plates, one end of the two diagonal brace plates are connected together at an angle and supported on the inner wall of the reinforced outer tube, and the other end of the two diagonal brace plates is formed with a supporting flange, and the supporting flange is supported on the waterproof board layer; A support plate connected between the middle portions of the two support plates; A plug-in rod is connected to one end of the two support plates, and the plug-in rod passes through the reinforced outer tube and is inserted into the rock layer outside the reinforced outer tube.

5. The water-stopping and reinforced tunnel structure according to claim 4 is characterized in that: The support frame also includes a support grid, which is supported and connected between the bottom of the reinforced outer tube and the waterproof board layer, and the support grid is arranged in a circle along the circumferential direction of the reinforced outer tube.

6. The water-stopping and reinforced tunnel structure according to claim 1, characterized in that: The outer side of the concrete layer is coated with an anti-corrosion topcoat.

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