Ecological tunnel portal wall

Abstract

The utility model provides an ecological tunnel portal wall, and relates to the technical field of tunnel design and construction. The ecological tunnel portal wall comprises an open cut tunnel, a portal wall body and a bias retaining wall. The open cut tunnel extends in the extending direction of the tunnel in the mountain, one end of the open cut tunnel communicates with the tunnel, and the other end of the open cut tunnel penetrates through the tunnel door wall. A wall back backfill soil body is buried between the back surface of the tunnel portal wall and the mountain body, and the front surface of the tunnel portal wall is a tunnel portal wall surface; the bias retaining wall is connected with one end of the portal wall in an included angle mode and located on the back face of the portal wall, and the side face, away from the wall back backfill soil body, of the bias retaining wall is a bias retaining wall face; a planting groove body with a planting groove is formed in the tunnel portal wall surface and / or the bias pressure retaining wall surface; a first drainage ditch is arranged on the top wall of the tunnel door wall, a second drainage ditch is arranged on the bias pressure retaining wall face, and the first drainage ditch is communicated with the second drainage ditch. The ecological tunnel portal wall solves the technical problems that an existing tunnel portal cannot achieve ecological protection, and mountain water resources cannot be effectively utilized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tunnel design construction, in particular to a tunnel ecological portal wall. BACKGROUND

[0002] More and more mountainous highways are built, and the length of tunnels is rapidly increasing. In line with the design concept of "green highway", scenic highways become highlights. As the most eye-catching part of tunnel design, tunnel portals need to be practical and combined with ecological protection. Common highway tunnel portals are end wall type, mostly concrete and stone finish, which are practical but have no protective effect on the ecological environment and cannot be integrated with the surrounding mountains to achieve an ecological and aesthetic effect. At the same time, there are a large amount of mountain water resources at the tunnel construction site, which are usually directly discharged into ditches without effectively utilizing the resources. CONTENT OF THE INVENTION

[0003] The purpose of the embodiment of the present application is to provide a tunnel ecological portal wall to alleviate the technical problem that the existing tunnel portal cannot achieve ecological protection and cannot effectively utilize the mountain water resources.

[0004] In order to solve the above technical problems, the technical scheme provided by the present application is as follows:

[0005] The tunnel ecological portal wall provided by the present application comprises a tunnel portal wall, a tunnel and a bias retaining wall.

[0006] The tunnel extends along the extension direction of the tunnel in the mountain, one end of the tunnel is communicated with the tunnel, and the other end penetrates through the tunnel portal wall.

[0007] The back of the tunnel portal wall is filled with a wall back backfill soil body between the mountain, and the front of the tunnel portal wall is a tunnel portal wall surface.

[0008] The bias retaining wall is connected at an angle with one end of the tunnel portal wall, the bias retaining wall is located at the back of the tunnel portal wall, and the side of the bias retaining wall away from the wall back backfill soil body is a bias retaining wall surface.

[0009] The tunnel portal wall surface and / or the bias retaining wall surface is provided with a planting groove body having a planting groove.

[0010] The top wall of the tunnel portal wall is provided with a first drainage ditch, the bias retaining wall surface is provided with a second drainage ditch, and the first drainage ditch is communicated with the second drainage ditch.

[0011] Further, the opening direction of the planting groove is vertically upward.

[0012] Further, the bottom wall of the planting groove body is provided with a water permeable hole, and the axis of the water permeable hole is perpendicular to the bottom wall of the planting groove body.

[0013] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0014] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0015] Further, the outside wall of the seepage pipe is wrapped with a second geotextile.

[0016] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0017] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0018] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0019] Further, the inside of the planting groove is paved with a first geotextile, the first geotextile is filled with planting soil, and the planting soil is planted with green plants.

[0020] The technical effects achieved by the utility model are analyzed as follows:

[0021] The tunnel ecological portal wall provided by the utility model comprises an open cut, a portal wall and a bias retaining wall; the open cut extends along the extension direction of a tunnel in a mountain body, one end of the open cut is communicated with the tunnel, and the other end penetrates through the portal wall; a wall backfill soil body is filled between the back of the portal wall and the mountain body, and the front of the portal wall is a portal wall surface; the bias retaining wall is connected with one end of the portal wall at an angle, the bias retaining wall is located on the back of the portal wall, and the side of the bias retaining wall away from the wall backfill soil body is a bias retaining wall surface; the portal wall surface and / or the bias retaining wall surface are provided with a planting groove body with a planting groove; a first drainage ditch is arranged on the top wall of the portal wall, a second drainage ditch is arranged on the bias retaining wall surface, and the first drainage ditch is communicated with the second drainage ditch. The portal wall and the bias retaining wall are in an L shape, the height of the portal wall and the bias retaining wall can be dynamically adjusted according to the actual terrain conditions at the tunnel portal, and the wall backfill soil body can be filled between the portal wall and the mountain body as required.

[0022] The tunnel ecological portal wall has the following advantages: the green plants in the planting groove are planted on the portal wall and the bias retaining wall, so that the whole tunnel ecological portal wall is integrated with the mountain and the nature; the green plants in the planting groove can directly absorb the water flowing down from the mountain, and the existing water resource in the mountain is effectively utilized, which is economic and convenient; the portal wall and the bias retaining wall can dynamically adjust the height and shape of the wall according to the terrain of the portal, and are suitable for various types of portals; the drainage ditch on the top of the portal wall can drain away the water flowing down from the mountain in the rainy season, and plays a role of preventing waterlogging and water accumulation. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of the drawings.

[0024] Figure 1 A front elevation view of the tunnel ecological portal wall provided by the embodiments of the present application is shown in the figure.

[0025] Figure 2 A side view of the tunnel ecological portal wall provided by the embodiments of the present application is shown in the figure.

[0026] Figure 3 A sectional view of the I-I in the figure. Figure 1 A top view of the tunnel ecological portal wall provided by the embodiments of the present application is shown in the figure.

[0027] Figure 4 A sectional view of the planting groove provided by the embodiments of the present application is shown in the figure.

[0028] Figure 5 A sectional view of the planting groove provided by the embodiments of the present application is shown in the figure.

[0029] FIG.:

[0030] 110 - open cut; 111 - portal wall; 112 - first drainage ditch; 113 - bias retaining wall; 114 - second drainage ditch; 115 - wall backfill; 116 - portal wall surface; 117 - bias retaining wall surface;

[0031] 120 - planting groove; 121 - planting groove; 122 - water permeable hole; 123 - first geotextile; 124 - planting soil; 125 - green plant; 126 - seepage pipe; 127 - seepage hole; 128 - second geotextile; 129 - water outlet hole;

[0032] 130 - drainage pipe; 131 - capstone. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] In the description of the present application, it should be noted that the positions or location relationships indicated by the terms "in", "out", etc. are based on the positions or location relationships shown in the drawings, or the positions or location relationships commonly placed when the products of the present application are used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Some embodiments of the present application will be described in detail below in conjunction with the drawings.

[0037] The tunnel ecological portal wall provided by the embodiment of the present application comprises an open cut 110, a portal wall 111 and a bias retaining wall 113. The open cut 110 extends along the extension direction of the tunnel in the mountain body, one end of the open cut 110 is communicated with the tunnel, and the other end penetrates through the portal wall 111. The back of the portal wall 111 is filled with a wall back backfill soil body 115 between the mountain body, and the front of the portal wall 111 is a portal wall surface 116. The bias retaining wall 113 is connected at an angle with one end of the portal wall 111, the bias retaining wall 113 is located at the back of the portal wall 111, and the side of the bias retaining wall 113 away from the wall back backfill soil body 115 is a bias retaining wall surface 117. The portal wall surface 116 and / or the bias retaining wall surface 117 is installed with a planting groove body 120 with a planting groove 121. The top wall of the portal wall 111 is provided with a first drainage ditch 112, the bias retaining wall surface 117 is provided with a second drainage ditch 114, and the first drainage ditch 112 is communicated with the second drainage ditch 114.

[0038] Specifically, the planting groove body 120 with the planting groove 121 is installed on the tunnel portal wall 116 and / or the bias retaining wall 117, which means that the planting groove body 120 is installed on the tunnel portal wall 116 alone, or the planting groove body 120 is installed on the bias retaining wall 117 alone, or the planting groove body 120 is installed on both the tunnel portal wall 116 and the bias retaining wall 117. See Figure 1 During construction, the foundation of the tunnel portal wall 111 is excavated first, and the foundation is laid on a stable foundation with a bearing capacity of ≥300Kp. Then, the tunnel portal wall 111 and the bias retaining wall 113 are poured with C20 concrete in layers. The height of the tunnel portal wall 111 can be dynamically adjusted according to the actual terrain conditions of the tunnel portal, and the backfill soil body 115 between the tunnel portal wall 111 and the mountain can be filled as needed. The thickness of the tunnel portal wall 111 is 2m, and the slope ratio is 1:0.25. The thickness of the bias retaining wall 113 gradually changes, and the slope ratio is 1:0.25. Of course, other values should also be within the protection scope of the embodiments of the utility model. During pouring, the planting groove body 120 of each layer is installed synchronously. Each layer of the tunnel portal wall 111 and the bias retaining wall 113 corresponds to a layer of the planting groove body 120. The planting groove body 120 is fixed on the tunnel portal wall 116 and the bias retaining wall 117 respectively by using reinforcing steel bars. When pouring the topmost layer of the tunnel portal wall 111, the first drainage ditch 112 is poured simultaneously. See Figure 4 The net width is 50cm, and the net height is 40cm. Of course, other values should also be within the protection scope of the embodiments of the utility model. At the same time, the second drainage ditch 114 is poured at the edge of the bias retaining wall 117. One end of the second drainage ditch 114 communicates with the first drainage ditch 112, and the other end of the second drainage ditch 114 is connected to the water ditch at the edge of the roadbed.

[0039] The tunnel ecological portal wall has the following advantages: the planting groove body 120 provided on the tunnel portal wall 111 and the bias retaining wall 113 plants green plants 125, so that the entire tunnel ecological portal wall is integrated with the mountain and nature; the green plants 125 in the planting groove body 120 can directly absorb water flowing down from the mountain, without the need for additional irrigation, effectively utilizing the existing water resources in the mountain, and being economical and convenient; the layered pouring mode of the tunnel portal wall 111 and the bias retaining wall 113 has strong structure, can dynamically adjust the height and shape of the wall body according to the terrain of the tunnel portal, is suitable for various types of tunnel portals, and the number of layers of the planting groove body 120 corresponds to the number of layers of the tunnel portal wall 111 and the bias retaining wall 113, so that three-dimensional planting is achieved, the number of plantings is increased, and the occupied area is reduced; the drainage ditch at the top of the tunnel portal wall 111 can drain the water flowing down from the mountain into the water ditch at the edge of the roadbed during the rainy season, thereby playing a role in preventing waterlogging and water accumulation.

[0040] The structure and shape of the tunnel ecological portal wall are described in detail as follows:

[0041] In the optional scheme of the embodiments of the utility model, the opening direction of the planting groove 121 is vertically upward.

[0042] Specifically, referring to Figure 5 The planting groove 120 is slotted at the top, the slotting direction is upward, the planting groove 120 is designed to be wide at the top and narrow at the bottom, the wall thickness is 25 cm, the width at the top is 70 m, the width at the bottom is 50 m, and the height is 90 m, and of course, other values should be within the protection scope of the embodiments of the utility model.

[0043] The upward slotting direction of the planting groove 121 can better preserve water in the planting groove 121, when the rainy season, the amount of rain is reduced, the upward slotting direction of the planting groove 121 plays a role in collecting rainwater, and the trumpet-shaped design of being wide at the top and narrow at the bottom can further increase the collection of water and reduce the risk of drought and death of the green plants 125 planted therein.

[0044] In the optional scheme of the embodiments of the utility model, the bottom wall of the planting groove 120 is provided with a water permeable hole 122, and the axis of the water permeable hole 122 is perpendicular to the bottom wall of the planting groove 120.

[0045] Specifically, referring to Figure 3 The bottom of the planting groove 120 is drilled, the water permeable hole 122 penetrates the bottom wall of the planting groove 120, the drilling direction is perpendicular to the bottom wall of the planting groove 120, the diameter of the water permeable hole 122 is 5 cm, the water permeable hole 122 is provided with a plurality of water permeable holes 122, and the plurality of water permeable holes 122 are arranged along the length direction of the planting groove 120 with an arrangement interval of 1 m. Of course, other values should be within the protection scope of the embodiments of the utility model.

[0046] The plurality of water permeable holes 122 arranged at intervals can quickly drain the excess water in the planting groove 120 when the amount of water is excessive in the rainy season, so as to avoid the green plants 125 planted therein from being soaked by water; the axis of the water permeable hole 122 is perpendicular to the bottom wall of the planting groove 120, the drainage speed is faster, and the drainage effect is better.

[0047] In the optional scheme of the embodiments of the utility model, the first geotextile 123 is laid in the planting groove 121, the planting soil 124 is filled on the first geotextile 123, and the green plants 125 are planted in the planting soil 124.

[0048] Specifically, the first geotextile 123 is laid in the planting groove 120, the first geotextile 123 is laid by manual rolling, the first geotextile 123 covers the bottom wall and the two side walls of the planting groove 120, the first geotextile 123 is flat and has a proper excess amount, so as to prevent deformation caused by thermal expansion and cold contraction from causing the first geotextile 123 to fail to cover the entire planting groove 121; after the laying is completed, the planting soil 124 is filled, the thickness of the planting soil 124 is 60 cm, and the green plants 125 are planted in the planting soil 124, and of course, other values should be within the protection scope of the embodiments of the utility model.

[0049] The first geotextile 123 is laid under the planting soil 124, and has an isolation effect, preventing the planting soil 124 and the green plants 125 from corroding the planting groove body 120; the first geotextile 123 also prevents the water-permeable holes 122 from being blocked by the roots of the green plants 125, so that the green plants 125 cannot be soaked due to the water-permeable holes 122, and also prevents the planting soil 124 from falling from the water-permeable holes 122 to the ground.

[0050] In the optional scheme of the embodiment of the utility model, the seepage pipe 126 is arranged in the planting groove body 120, and the seepage pipe 126 is buried in the planting soil 124; a plurality of seepage holes 127 are arranged on the side wall of the seepage pipe 126 in an axial direction.

[0051] Specifically, during the layered pouring, the mountain is drilled to a depth of 10 m, then one end of the seepage pipe 126 is inserted into the mountain through the drilling, then the seepage pipe 126 is buried in the planting soil 124 of the planting groove body 120, and the buried length is the same as the length of the planting groove 121; the seepage pipe 126 is made of PVC material with a diameter of 10 cm, and the seepage holes 127 are drilled in the axial direction according to the length of the seepage pipe 126 buried in the planting soil 124; during installation, the seepage holes 127 are installed downward, and of course, other values should be within the protection scope of the embodiment of the utility model.

[0052] The seepage pipe 126 inserted into the mountain introduces fissure water in the mountain into the planting groove body 120, so that the fissure water in the mountain can supplement the water required by the green plants 125 in the dry season; the seepage holes 127 on the side wall of the seepage pipe 126 can uniformly distribute water to the entire planting groove 121, and the flooding irrigation is changed to drip irrigation, so that water resources are saved and the irrigation effect is better.

[0053] In the optional scheme of the embodiment of the utility model, the outer wall of the seepage pipe 126 is wrapped with the second geotextile 128.

[0054] Specifically, the second geotextile 128 is wound around the seepage pipe 126 in an oblique direction.

[0055] The second geotextile 128 has high puncture resistance and a large friction coefficient, and can prevent the planting groove body 120 from scratching the seepage pipe 126 during the filling of the seepage pipe 126; after the seepage pipe 126 is wrapped, the second geotextile 128 can prevent sundries in the planting soil 124 and the roots of the green plants 125 from entering the seepage pipe 126 through the seepage holes 127, and has an isolation effect.

[0056] In the optional scheme of the embodiment of the utility model, a plurality of planting groove bodies 120 are installed on the hole door wall surface 116 and the bias retaining wall surface 117, and the plurality of planting groove bodies 120 are arranged in a vertical direction in a spaced manner; the plurality of planting grooves 121 located on the hole door wall surface 116 are in one-to-one correspondence with the plurality of planting grooves 121 located on the bias retaining wall surface 117 and are in communication.

[0057] Specifically, during the layer-by-layer pouring of the portal wall 111 and the bias retaining wall 113, the planting groove 120 is synchronously poured and installed at each layer. The planting grooves 120 at each layer of the portal wall 111 and the bias retaining wall 113 are synchronously poured, and two planting grooves 120 are communicated and in an L shape. The bottom wall of the upper planting groove 120 is spaced apart from the slotted portion of the lower planting groove 120 in height.

[0058] The multi-layer planting can effectively increase the number of green plants 125, reduce the occupied area, and transfer the planting from the plane to the combination of the plane and the height. Meanwhile, the excess water in the upper planting groove 120 can be dripped into the lower planting groove 121 through the water-permeable hole 122 at the bottom, further improving the water resource utilization effect and increasing the survival rate of the green plants 125 in the dry season.

[0059] In the optional scheme of the embodiment of the utility model, the plurality of planting grooves 120 on the portal wall surface 116 are arranged in a stepped manner in the vertical direction, and the plurality of planting grooves 120 on the bias retaining wall surface 117 are arranged in a stepped manner in the vertical direction.

[0060] Specifically, according to the slope rate of the bias retaining wall 113 of the portal wall 111, the installation positions of the planting grooves 120 on the portal wall surface 116 and the bias retaining wall surface 117 gradually approach the inner side from low to high, and the top wall of the open tunnel 110 extends out of the portal wall 111 and is provided with the annular capstone 131. During installation, it should be noted that the water-permeable hole 122 of the upper planting groove 120 cannot exceed the slotted position of the lower planting groove 120.

[0061] The staggered installation of the planting grooves 120 can more effectively utilize sunlight and reduce the shadow of the upper green plants 125 on the lower green plants 125. The annular capstone 131 is installed on the open tunnel 110 to prevent sundries and water in the planting grooves 120 from dripping onto the road and prevent the dry leaves of the green plants 125 from falling and hitting passing vehicles, thereby reducing the occurrence of traffic accidents.

[0062] In the optional scheme of the embodiment of the utility model, the planting groove 120 installed on the bias retaining wall 113 is provided with a water outlet hole 129, and the water outlet hole 129 is communicated with the second drainage ditch 114.

[0063] Specifically, the water outlet hole 129 is reserved at the end of the planting groove 120 installed on the bias retaining wall 113, and the water outlet hole 129 is located at the center position of the end face of the planting groove 120. As shown in Figure 2 The water outlet hole 129 is connected with the second drainage ditch 114.

[0064] In the rainy season, rain and mountain fissure water increase greatly, and the water cannot be quickly drained through the water-permeable hole 122. When the water level in the planting groove 120 is higher than the water outlet hole 129, the water can be directly drained from the water outlet hole 129 into the second drainage ditch 114, thereby achieving the effect of quickly draining water and preventing the green plants 125 from being soaked to death. In the dry season, the water amount decreases, the water-permeable hole 122 can drain water, the water level in the planting groove 120 decreases, and is lower than the water outlet hole 129, so that the water cannot be directly drained into the second drainage ditch 114.

[0065] In the optional scheme of the embodiment of the utility model, the drainage pipe 130 is further included, one end of the drainage pipe 130 passes through the hole door wall 111, and the other end of the drainage pipe 130 is buried in the wall back backfill soil body 115.

[0066] Specifically, the drainage pipe 130 is also made of PVC material with a diameter of 10 cm, and is wrapped with the second geotextile 128 after being perforated in the axial direction. In use, the drainage pipe 130 is horizontally buried in the wall back backfill soil, is placed with the perforated direction upward, the other end of the drainage pipe 130 is fixed in the hole door wall surface 116, the end surface of the drainage pipe 130 slightly protrudes from the hole door wall surface 116, and the drainage pipe 130 is provided with a plurality of roots on each hole door wall 111 with a horizontal spacing of 2 m.

[0067] Through the drainage pipe 130 buried in the wall back backfill soil, fissure water in the wall back backfill soil can be drained, the problem that the hole door wall 111 is slowly corroded after absorbing water and finally leads to cracking and seepage of the hole door wall 111 is reduced, and the overall stability of the hole door wall 111 is improved.

[0068] The utility model discloses a tunnel ecological portal wall, which comprises a cut-and-cover tunnel 110, a portal wall 111, a bias retaining wall 113, a planting groove 121, a seepage pipe 126, a capstone 131, a first drainage ditch 112, a second drainage ditch 114, planting soil 124, a first geotextile 123, a second geotextile 128, a water-permeable hole 122 and green plants 125.

[0069] In actual implementation, the portal wall 111 foundation is excavated first, and the bearing capacity of the foundation is checked to see whether it meets the requirement of being greater than or equal to 300Kp. The portal wall 111, the bias retaining wall 113 and the planting groove 121 are poured in layers and in batches. The height of the portal wall 111 can be dynamically adjusted according to the actual terrain conditions of the portal. Steel bars are arranged in the planting groove 121, and the water-permeable hole 122 is arranged at the bottom. During the layer-by-layer pouring, a 10m deep drill hole is drilled in the side rock mass, and a punching PVC pipe wrapped with geotextile is buried. The punching PVC pipe is buried in the portal wall 111. After the main structure of the portal is constructed, the first geotextile 123 is laid at the bottom of the planting groove 121. The planting soil 124 is backfilled on the first geotextile 123. The thickness of the planting soil 124 is 60cm. The punching PVC pipe wrapped with the second geotextile 128 is buried in the planting soil 124. The climbing plant and shrubs are planted on the upper part of the planting soil 124.

[0070] During the operation of the tunnel, the main sources of water for the green plants 125 in the planting groove 121 are rainwater, rock fissure water and backfill soil fissure water behind the wall. During the rainy season, the water in the planting soil 124 is mainly drained through the drainage ditch and the water-permeable hole 122 at the bottom of the planting groove 121, so as to avoid the green plants 125 from being soaked in the rainy season. In the dry season, the water supply is mainly supplemented by part of the rainwater, the rock fissure water and the backfill soil fissure water behind the wall, so as to improve the survival rate of the green plants 125 and reduce the maintenance cost. Even if there are dry leaves and branches during the operation process, they will not directly fall on the road surface, but will be blocked by the cut-and-cover tunnel 110 and the capstone 131. The greening of the portal wall 111 will not affect the driving safety.

[0071] It should be noted that the features of the embodiments in the present application can be combined with each other in the case of no conflict.

[0072] The above only is the preferred embodiment of the present application, and is not used to limit the present application, and the present application can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A tunnel ecological portal wall, characterized in that, The utility model relates to a kind of mountain tunnel wall greening structure, including: Open tunnel (110), tunnel gate wall (111) and bias retaining wall (113); The open tunnel (110) extends along the extension direction of tunnel in mountain body, one end of the open tunnel (110) is communicated with tunnel, the other end passes through the tunnel gate wall (111); The back of the tunnel gate wall (111) is filled with wall back backfill soil body (115) between mountain body, the front of the tunnel gate wall (111) is tunnel gate wall surface (116); The bias retaining wall (113) is connected with one end of the tunnel gate wall (111) at an angle, the bias retaining wall (113) is located at the back of the tunnel gate wall (111), the side of the bias retaining wall (113) away from wall back backfill soil body (115) is bias retaining wall surface (117); The tunnel gate wall surface (116) and / or the bias retaining wall surface (117) are installed with planting groove body (120) with planting groove (121); The top wall of the tunnel gate wall (111) is provided with first drain ditch (112), the bias retaining wall surface (117) is provided with second drain ditch (114), the first drain ditch (112) is communicated with the second drain ditch (114).

2. The tunnel eco-door wall of claim 1, wherein, The opening direction of the planting groove (121) is vertically upward.

3. The tunnel eco-door wall of claim 2, wherein, The bottom wall of the planting groove body (120) is provided with water-permeable hole (122), the axis of the water-permeable hole (122) is perpendicular to the bottom wall of the planting groove body (120).

4. The tunnel eco-door wall of claim 2, wherein, The inside of the planting groove (121) is paved with first geotextile (123), the first geotextile (123) is filled with planting soil (124), and the planting soil (124) is planted with green plants (125).

5. The tunnel eco-door wall of claim 4, wherein, The planting groove body (120) is provided with seepage pipe (126), the seepage pipe (126) is embedded in the planting soil (124);The side wall of the seepage pipe (126) is axially spaced apart from a plurality of seepage holes (127).

6. The tunnel eco-door wall of claim 5, wherein, The outer wall of the seepage pipe (126) is wrapped with second geotextile (128).

7. The tunnel ecological portal wall according to any one of claims 1-6, characterized in that, The tunnel gate wall surface (116) and the bias retaining wall surface (117) are both installed with a plurality of the planting groove body (120), a plurality of the planting groove body (120) are arranged in vertical direction;A plurality of the planting groove (121) located on the tunnel gate wall surface (116) and a plurality of the planting groove (121) located on the bias retaining wall surface (117) are communicated one by one.

8. The tunnel eco-door wall of claim 7, wherein, A plurality of the planting groove body (120) located on the tunnel gate wall surface (116) are arranged in ladder shape in vertical direction, and a plurality of the planting groove body (120) located on the bias retaining wall surface (117) are arranged in ladder shape in vertical direction.

9. The tunnel ecoportal wall of claim 1, wherein, The planting groove body (120) installed on the bias retaining wall (113) is provided with water outlet hole (129), and the water outlet hole (129) is communicated with the second drain ditch (114).

10. The tunnel ecoportal wall of claim 1, wherein, It also includes drain pipe (130), one end of the drain pipe (130) passes through the tunnel gate wall (111), and the other end of the drain pipe (130) is embedded in the wall back backfill soil body (115).

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