Tunnel portal silty clay reinforcing structure

Abstract

The utility model discloses a tunnel portal silty clay reinforcing structure which comprises a tunnel portal circular arch, a concrete slope bottom pouring seat is fixedly connected to one side of the outer portion of the tunnel portal circular arch, and a slope supporting slope is fixedly connected to the top of the concrete slope bottom pouring seat. And a plurality of groups of soil layer drainage structures are arranged in the inclined supporting slope. According to the tunnel portal silty clay reinforcing structure, the water collecting cylinder pipe, the permeable holes, the water outlet and the porous baffle are arranged, when the tunnel portal silty clay reinforcing structure is used, the tunnel portal circular arch is in butt joint with the tunnel body, in the rainfall weather, rainwater infiltrates downwards along the surface of silty clay, and the permeable holes in the water collecting cylinder pipe facilitate seepage water to enter; according to the device, seepage water flows along the water collecting cylinder pipe and is discharged from the water outlet, the porous baffle plate can prevent insects and rats from entering the water collecting cylinder pipe to build nests while guaranteeing the drainage capacity, the function of conveniently discharging water in the soil layer is achieved, and the problem that the device does not have the function of conveniently discharging water in the soil layer is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel opening reinforcement structures, in particular to a tunnel opening silty clay reinforcement structure. Background Art

[0002] The tunnel entrance is a building at the entrance and exit of the tunnel. It is mainly distributed at the edge of the mountain. The entrance needs to be reinforced to prevent landslides, falling rocks, etc. from affecting the entrance. When the soil at the tunnel entrance is silty clay, the deformation of this soft soil is time-sensitive. It will settle and crack over time, causing landslides and cracks. The construction party will generally carry out reinforcement work at the entrance to avoid landslides on the soft soil slope at the entrance.

[0003] At present, tunnel portal reinforcement in silty clay areas mostly adopts concrete projects such as surface grouting and face sealing. The inclined support surface is constructed by reinforced concrete to support the soft soil layer at the portal. There are some functional deficiencies in actual use and there is room for improvement. For example, silty clay is easy to permeate water, and the probability of landslide in silty clay with high water content is extremely high. The current portal reinforcement structure can only play a supporting role. The construction surface of concrete material has a certain impact on drainage, and the seepage water of the clay layer cannot be discharged, which increases the amount of accumulated water and does not have the function of facilitating the discharge of water in the soil layer.

[0004] Now, a new type of tunnel portal silty clay reinforcement structure is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a tunnel opening silty clay reinforcement structure to solve the problem that the above-mentioned background technology has no function of conveniently discharging water in the soil layer.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel entrance silty clay reinforcement structure, comprising a tunnel entrance round arch, one side of the outside of the tunnel entrance round arch is fixedly connected to a concrete slope bottom casting seat, the top of the concrete slope bottom casting seat is fixedly connected to an inclined support slope, and a soil layer drainage structure is arranged inside the inclined support slope.

[0007] The soil layer drainage structure comprises a water collecting tube, and a plurality of groups of the water collecting tubes are respectively arranged transversely inside the inclined support slope, and a water outlet is arranged on one side of the water collecting tube.

[0008] Preferably, a plurality of groups of water-permeable eyes are provided inside one side of the water collecting tube far from the water outlet, and the water-permeable eyes penetrate both the inner and outer surfaces of the water collecting tube.

[0009] Preferably, a porous baffle is filled inside one side of the water collecting tube near the water outlet, and fine holes are evenly arranged inside the porous baffle.

[0010] Preferably, a wind shield is fixedly connected to one side of the top of the round arch of the tunnel entrance, multiple groups of pressure plates are arranged on the right side of the wind shield, and pressure sensors are respectively installed between the front and rear ends of one side of the pressure plate and the bottom of one side of the wind shield.

[0011] Preferably, the pressure sensors are symmetrically distributed about the vertical center line of the pressure plate, and the bottom end of the pressure plate is movably connected to the top end of the inclined support slope.

[0012] Preferably, an opening baffle is fixedly connected to the other side of the outside of the tunnel opening arch, and a pole mounting seat is fixedly connected to the top of the opening baffle. A steel pole is vertically inserted into the pole mounting seat, and a wire mesh plate is arranged between one ends of two groups of steel poles. Three groups of mesh plate fixing sleeves are respectively fixedly connected to the front and rear ends of the steel mesh plate, and the inner diameter of the mesh plate fixing sleeve is consistent with the outer diameter of the steel pole, and the steel pole and the mesh plate fixing sleeve are connected.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the tunnel entrance silty clay reinforcement structure not only realizes the function of facilitating the discharge of moisture in the soil layer and the function of landslide feedback, but also realizes the function of landslide soil and rock blocking;

[0014] (1) By providing a water collecting tube, water permeable eyes, a water outlet and a porous baffle, when in use, the round arch of the tunnel entrance is connected to the tunnel body, which is convenient for vehicles to pass through. The concrete slope bottom casting seat is constructed at the edge of the mountain, and the inclined support slope on the top supports the silty clay slope at the bottom of the mountain. In rainy weather, rainwater seeps along the surface of the silty clay, and the water permeable eyes on the water collecting tube facilitate the entry of seepage water, which flows along the water collecting tube and is discharged from the water outlet. The porous baffle can prevent insects and rodents from drilling into the water collecting tube and building nests while ensuring the drainage capacity, thus realizing the function of facilitating the discharge of water in the soil layer;

[0015] (2) By setting up a windshield, a pressure plate and a pressure sensor, when in use, the inclined support slope supports the silty clay slope at the bottom of the mountain. When a landslide occurs on the silty clay slope, the soil and rocks slide down and press on the pressure plate. The pressure plate is compressed by the soil and rocks and feeds back the weight to the pressure sensor. After the pressure sensor is stressed, it can feed back the signal to the backstage of the management party, reminding the operation management party to check in time, thereby improving the timeliness of emergency repairs. The windshield can block the front wind to prevent the wind from affecting the pressure plate, thus realizing the function of landslide feedback;

[0016] (3) By installing the tunnel baffle, the pole mounting seat, the steel pole, the mesh fixing sleeve and the wire mesh, when a landslide occurs in the silty clay layer, the sliding soil and rocks continue to slide down along the inclined support slope. When they reach the round arch of the tunnel entrance, the wire mesh on the tunnel baffle can block the soil and rocks, reducing the amount of soil and rocks falling on the round arch of the tunnel entrance. The pole mounting seat, the steel pole and the mesh fixing sleeve provide physical support for the installation and fixation of the wire mesh, thereby realizing the function of blocking the landslide soil and rocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 1 A partial cross-section at the center is an enlarged structural diagram;

[0020] Figure 4 This is a schematic diagram of a partial cross-sectional structure of a water collecting tube of the utility model;

[0021] Figure 5 It is a schematic diagram of the windshield structure of the utility model from a top view.

[0022] In the figure: 1. Tunnel entrance arch; 2. Concrete slope bottom casting seat; 3. Inclined support slope; 4. Water collecting tube; 5. Water permeable eye; 6. Water outlet; 7. Porous baffle; 8. Wind shield; 9. Pressure plate; 10. Pressure sensor; 11. Opening baffle; 12. Pole mounting seat; 13. Steel pole; 14. Mesh fixing sleeve; 15. Wire mesh. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-5 A tunnel portal silty clay reinforcement structure comprises a tunnel portal round arch 1, a concrete slope bottom casting seat 2 is fixedly connected to one side of the tunnel portal round arch 1, a slope support slope 3 is fixedly connected to the top of the concrete slope bottom casting seat 2, and a soil layer drainage structure is arranged inside the slope support slope 3;

[0025] See also Figure 1-5A tunnel entrance silty clay reinforcement structure further includes a soil layer drainage structure, the soil layer drainage structure includes a water collecting tube 4, a plurality of groups of water collecting tubes 4 are respectively arranged transversely inside the inclined support slope 3, and a water outlet 6 is arranged on one side of the water collecting tube 4;

[0026] A plurality of water-permeable holes 5 are arranged inside the water collecting tube 4 on one side far from the water outlet 6, and the water-permeable holes 5 penetrate the inner and outer surfaces of the water collecting tube 4. A porous baffle 7 is filled inside the water collecting tube 4 on one side near the water outlet 6. The porous baffle 7 is evenly provided with fine holes inside, which can guide the seepage water in the soil layer and reduce the water content of the soil layer.

[0027] Specifically, Figure 1 and Figure 4 As shown, the water-permeable holes 5 on the water collecting tube 4 facilitate the entry of seepage water, which flows along the water collecting tube 4 and is discharged from the water outlet 6. The porous baffle 7 can prevent insects and rodents from drilling into the water collecting tube 4 and building nests while ensuring the drainage capacity.

[0028] Embodiment 2: A windshield 8 is fixedly connected to one side of the top of the round arch 1 of the tunnel entrance, and multiple groups of pressure plates 9 are arranged on the right side of the windshield 8. Pressure sensors 10 are respectively installed between the front and rear ends of one side of the pressure plate 9 and the bottom of one side of the windshield 8. The pressure sensors 10 are symmetrically distributed about the vertical center line of the pressure plate 9. The bottom end of the pressure plate 9 is movably connected to the top of the inclined support slope 3, so as to provide timely feedback when a landslide occurs;

[0029] Specifically, Figure 1 , Figure 2 and Figure 5 As shown, the pressure plate 9 is compressed by soil and rocks and feeds back the weight to the pressure sensor 10. After the pressure sensor 10 is subjected to force, it can feed back the signal to the management's backstage to remind the operation management to check in time and improve the timeliness of emergency repairs. The wind shield 8 can block the front wind to prevent the wind from affecting the pressure plate 9.

[0030] Embodiment 3: A tunnel opening baffle 11 is fixedly connected to the other side of the outer side of the round arch 1 of the tunnel opening, a pole mounting seat 12 is fixedly connected to the top of the tunnel opening baffle 11, a steel pole 13 is vertically inserted inside the pole mounting seat 12, a wire mesh plate 15 is arranged between one end of two groups of steel poles 13, three groups of mesh plate fixing sleeves 14 are fixedly connected to the front and rear ends of the wire mesh plate 15, the inner diameter of the mesh plate fixing sleeve 14 is consistent with the outer diameter of the steel pole 13, the steel pole 13 and the mesh plate fixing sleeve 14 are connected, which can block soil and rocks when a landslide occurs and reduce the impact on traffic;

[0031] Specifically, Figure 1 and Figure 2As shown, the wire mesh plate 15 on the tunnel entrance baffle 11 can block soil and rocks and reduce the amount of soil and rocks falling on the round arch 1 of the tunnel entrance. The vertical pole mounting seat 12, the steel vertical pole 13 and the mesh plate fixing sleeve 14 provide physical support for the installation and fixation of the wire mesh plate 15.

[0032] Working principle: When the utility model is in use, first, the tunnel entrance arch 1 is connected to the tunnel body to facilitate the passage of vehicles. The concrete slope bottom casting seat 2 is constructed on the edge of the mountain. The inclined support slope 3 on the top supports the silty clay slope at the bottom of the mountain. In rainy weather, rainwater seeps along the surface of the silty clay. The permeable holes 5 on the water collecting tube 4 facilitate the entry of seepage water. The seepage water flows along the water collecting tube 4 and is discharged from the water outlet 6. The porous baffle 7 can prevent insects and rodents from drilling into the water collecting tube 4 to build nests while ensuring the drainage capacity. The inclined support slope 3 supports the silty clay slope at the bottom of the mountain. When a landslide occurs on the silty clay slope, the soil and rocks slide down and press on the pressure plate 9. The pressure plate 9 is compressed by the soil and rocks and feeds back the weight to the pressure sensor 10. After the pressure sensor 10 is stressed, it can feed back the signal to the backstage of the management party, reminding the operation management party to check in time and improve the timeliness of emergency repairs. The wind shield 8 can block the front wind to prevent the wind from affecting the pressure plate 9. When a landslide occurs in the silty clay layer, the sliding soil and rocks continue to slide down along the inclined support slope 3. When reaching the round arch 1 at the tunnel entrance, the wire mesh plate 15 on the entrance baffle 11 can block the soil and rocks and reduce the amount of soil and rocks falling at the round arch 1 at the tunnel entrance. The vertical pole mounting seat 12, the steel vertical pole 13 and the mesh plate fixing sleeve 14 provide physical support for the installation and fixation of the wire mesh plate 15.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tunnel entrance silty clay reinforcement structure, comprising a tunnel entrance arch (1), characterized in that: A concrete bottom slope casting seat (2) is fixedly connected to one side of the outside of the tunnel entrance round arch (1), a slope support slope (3) is fixedly connected to the top of the concrete bottom slope casting seat (2), and a soil layer drainage structure is arranged inside the slope support slope (3); The soil layer drainage structure comprises a water collecting tube (4), wherein a plurality of groups of the water collecting tubes (4) are respectively arranged transversely inside the inclined support slope (3), and a water outlet (6) is arranged on one side of the water collecting tube (4).

2. A tunnel portal silty clay reinforcement structure according to claim 1, characterized in that: A plurality of groups of water-permeable holes (5) are arranged inside one side of the water collecting tube (4) away from the water outlet (6), and the water-permeable holes (5) penetrate both the inner and outer surfaces of the water collecting tube (4).

3. The tunnel portal silty clay reinforcement structure according to claim 1, characterized in that: A porous baffle (7) is filled inside one side of the water collecting tube (4) near the water outlet (6), and fine holes are evenly arranged inside the porous baffle (7).

4. The tunnel entrance silty clay reinforcement structure according to claim 1, characterized in that: A windshield plate (8) is fixedly connected to one side of the top of the tunnel entrance round arch (1), and a plurality of groups of pressure plates (9) are arranged on the right side of the windshield plate (8). Pressure sensors (10) are respectively installed between the front and rear ends of one side of the pressure plate (9) and the bottom of one side of the windshield plate (8).

5. The tunnel portal silty clay reinforcement structure according to claim 4, characterized in that: The pressure sensors (10) are symmetrically distributed about the vertical center line of the pressure plate (9), and the bottom end of the pressure plate (9) is movably connected to the top end of the inclined support slope (3).

6. The tunnel portal silty clay reinforcement structure according to claim 1, characterized in that: The other side of the outside of the tunnel entrance arch (1) is fixedly connected to an entrance baffle (11), the top of the entrance baffle (11) is fixedly connected to a pole mounting seat (12), a steel pole (13) is vertically inserted inside the pole mounting seat (12), a wire mesh plate (15) is arranged between one end of two groups of the steel poles (13), and three groups of mesh plate fixing sleeves (14) are fixedly connected to the front and rear ends of the steel mesh plate (15), respectively, the inner diameter of the mesh plate fixing sleeve (14) is consistent with the outer diameter of the steel pole (13), and the steel pole (13) and the mesh plate fixing sleeve (14) are connected.

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