Underground water treatment structure for water-rich sand pebble bed undercrossing tunnel

Abstract

The utility model discloses an underground water treatment structure for a water-rich sandy pebble bed underpass tunnel, and relates to the technical field of underground water treatment structures. A plurality of mounting holes which are distributed at equal intervals are formed in the tank bottom of the water pouring tank, one end of each water collecting barrel is fixed in the corresponding mounting hole, and a communicating pipe for communicating every two adjacent water collecting barrels is arranged at the bottom ends of the two adjacent water collecting barrels; the water pumping assembly is arranged in one of the water collecting barrels; the two anti-sedimentation structures are arranged on the two sides of the water pouring groove respectively, the water pumping assembly comprises a submersible pump and a water pumping pipe, the outer side wall of the water pumping pipe is fixedly installed on the water pouring groove, and the submersible pump is integrally arranged in the water collecting barrel. According to the utility model, water flow is introduced into each water collecting barrel from the water pouring groove, so that the water can be effectively treated in a centralized manner, and the water is prevented from intruding into an underground layer, rising of the water level of underground water, soil loss of the underground water and collapse are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater treatment structures, and particularly relates to a groundwater treatment structure for a tunnel passing through a water-rich sand and gravel layer. Background Technique

[0002] At present, with the continuous acceleration of the urbanization process, in order to solve the problem of urban road congestion, the construction of urban rail transit has accelerated. In order to avoid or reduce the impact of engineering construction on ground traffic, a large number of underground excavation tunnel projects have emerged. Due to the cross-operation of planned lines, crossing existing operating lines has become a key and difficult point in engineering construction.

[0003] In the prior art, the geological conditions of some underground excavation tunnels closely passing under existing subway stations are water-rich sand and gravel layers. The permeability coefficient of this formation is relatively large. In the case of a relatively high groundwater level, the self-stability of the soil body is poor, and safety accidents such as excessive settlement of the existing station and earthwork collapse are likely to occur during the excavation construction process. Therefore, in order to ensure the safety of tunnel earthwork excavation, a groundwater treatment construction structure for a tunnel passing through a water-rich sand and gravel layer is required to solve the above technical problems. Content of the Utility Model

[0004] The purpose of this application is to provide a utility model to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, this application provides the following technical solutions: A groundwater treatment structure for a tunnel passing through a water-rich sand and gravel layer, including:

[0006] Inverted water trough;

[0007] A plurality of water collecting cylinders, a plurality of equally spaced installation holes are opened at the bottom of the inverted water trough, one end of the water collecting cylinder is fixed in the installation hole, and a communicating pipe for connecting the bottoms of every two adjacent water collecting cylinders is provided;

[0008] A pumping assembly, the pumping assembly is arranged in one of the water collecting cylinders;

[0009] Two anti-settlement structures, the two anti-settlement structures are respectively arranged on both sides of the inverted water trough.

[0010] Preferably, the pumping assembly includes a submersible pump and a water suction pipe. The outer side wall of the water suction pipe is fixedly installed on the inverted water trough. The whole of the submersible pump is arranged in the water collecting cylinder, and the water outlet end of the submersible pump is communicated with the water suction pipe.

[0011] Preferably, the anti-settlement structure includes a filling plate, the filling plate is fixed to one side of the inverted water trough, and a plurality of discharge holes are opened on the outer side wall of the filling plate.

[0012] Preferably, the anti-settlement structure further includes a steel mesh, and the whole of the steel mesh is vertically fixed to the bottom of the water tank.

[0013] Preferably, a circular hole coaxial with the water collecting cylinder is formed at the bottom of the water collecting cylinder, a plurality of sunken holes are formed on the surface of the tunnel, each sunken hole is coaxially arranged with each circular hole, a bolt is arranged inside each sunken hole, one end of the bolt is located inside the water collecting cylinder, concrete is filled between the bolt and the sunken hole, and a nut is connected to the outer side wall of the bolt by a thread.

[0014] Preferably, a sealing gasket is arranged between the nut and the inner wall of the bottom of the water collecting cylinder.

[0015] In summary, the technical effects and advantages of the present utility model are as follows:

[0016] Water flow is introduced from the inverted water tank into each water collecting cylinder, so that the water can be effectively concentrated for treatment, preventing water from invading the underground layer, causing the water level of the groundwater to rise, resulting in soil erosion of the groundwater and causing collapse; mortar is poured from the filling plate, and the mortar is discharged from the discharge hole, and the mortar solidifies each sand and gravel pebble to prevent settlement; the bolts fix the whole treatment structure to the deep layer of the sand and gravel layer, improving the overall strength. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic three-dimensional structure diagram from the first perspective in this embodiment;

[0019] Figure 2 It is a schematic three-dimensional structure diagram from the second perspective in this embodiment;

[0020] Figure 3 It is a schematic cross-sectional structure diagram in this embodiment;

[0021] Figure 4 It is Figure 3 The enlarged structure diagram at A of

[0022] In the figure: 1, inverted water tank; 2, filling plate; 3, water collecting cylinder; 4, steel mesh; 5, concrete; 6, connecting pipe; 7, water extraction pipe; 8, submersible pump; 9, bolt; 10, nut; 11, sealing gasket. Detailed Embodiment

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Embodiment: Refer to Figures 1-4 A groundwater treatment structure for a tunnel passing through a water-rich sand and gravel layer as shown, including:

[0028] Inverted water tank 1;

[0029] A plurality of water collecting cylinders 3. A plurality of equally spaced installation holes are opened at the bottom of the inverted water tank 1. One end of the water collecting cylinder 3 is fixed in the installation hole, and a connecting pipe 6 for connecting the bottoms of every two adjacent water collecting cylinders 3 is provided;

[0030] A pumping assembly, which is arranged in one of the water collecting cylinders 3;

[0031] Two anti-settlement structures, which are respectively arranged on both sides of the inverted water tank 1;

[0032] From the above structural connection relationship, it can be seen that water flow is introduced from the inverted water trough 1 into each water collection cylinder 3, which can effectively concentrate the water treatment, prevent water from invading the underground layer, causing the water level of the groundwater to rise, resulting in soil erosion of the groundwater and causing subsidence.

[0033] Specifically, the pumping assembly includes a submersible pump 8 and a water suction pipe 7. The outer side wall of the water suction pipe 7 is fixedly installed on the inverted water trough 1. The whole of the submersible pump 8 is arranged inside the water collection cylinder 3, and the water outlet end of the submersible pump 8 is communicated with the water suction pipe 7;

[0034] From the above structural connection relationship, it can be seen that the submersible pump 8 pumps out the water collection cylinder 3 to prevent the water collection cylinder 3 from overflowing.

[0035] Specifically, the anti-settlement structure includes a filling plate 2. The filling plate 2 is fixed to one side of the inverted water trough 1, and a plurality of discharge holes are formed in the outer side wall of the filling plate 2;

[0036] From the above structural connection relationship, it can be seen that mortar is poured from the filling plate 2, and the mortar is discharged from the discharge holes. The mortar solidifies each sand and gravel pebble to prevent settlement.

[0037] Specifically, the anti-settlement structure further includes a steel mesh 4, and the whole of the steel mesh 4 is vertically fixed at the bottom of the water trough;

[0038] From the above structural connection relationship, it can be seen that the steel mesh 4 improves the mortar adhesion.

[0039] Specifically, a round hole coaxial with it is formed at the bottom of the water collection cylinder 3. A plurality of sunken holes are formed on the surface of the tunnel, and each sunken hole is coaxial with each round hole. An anchor rod 9 is arranged inside the sunken hole. One end of the anchor rod 9 is located inside the water collection cylinder 3. Concrete 5 is filled between the anchor rod 9 and the sunken hole. A nut 10 is connected to the outer side wall of the anchor rod 9 by a thread;

[0040] From the above structural connection relationship, it can be seen that the anchor rod 9 fixes the whole treatment structure to the deep layer of the sand and gravel layer, improving the overall strength.

[0041] Specifically, a sealing gasket 11 is provided between the nut 10 and the inner wall of the bottom of the water collection cylinder 3.

[0042] The working principle of the present utility model: Water flow is introduced from the inverted water trough 1 into each water collection cylinder 3, which can effectively concentrate the water treatment, prevent water from invading the underground layer, causing the water level of the groundwater to rise, resulting in soil erosion of the groundwater and causing subsidence; Mortar is poured from the filling plate 2, and the mortar is discharged from the discharge holes. The mortar solidifies each sand and gravel pebble to prevent settlement; The anchor rod 9 fixes the whole treatment structure to the deep layer of the sand and gravel layer, improving the overall strength.

[0043] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A groundwater treatment structure for a tunnel passing under a water-rich sand and gravel layer, characterized in that Comprising: Inverted water tank (1); A plurality of water collecting cylinders (3), a plurality of equally spaced mounting holes are formed in the bottom of the inverted water tank (1), one end of the water collecting cylinder (3) is fixed in the mounting hole, and a communicating pipe (6) for connecting the bottoms of every two adjacent water collecting cylinders (3) is provided; A water pumping assembly, the water pumping assembly is arranged in one of the water collecting cylinders (3); Two anti-settlement structures, the two anti-settlement structures are respectively arranged on both sides of the inverted water tank (1).

2. The groundwater treatment structure for a tunnel passing under a water-rich sand and gravel layer according to claim 1, characterized in that: The water pumping assembly includes a submersible pump (8) and a water suction pipe (7), the outer side wall of the water suction pipe (7) is fixedly installed on the inverted water tank (1), the whole of the submersible pump (8) is arranged in the water collecting cylinder (3), and the water outlet end of the submersible pump (8) is communicated with the water suction pipe (7).

3. The groundwater treatment structure for a tunnel passing under a water-rich sand and gravel layer according to claim 1, characterized in that: The anti-settlement structure includes a filling plate (2), the filling plate (2) is fixed to one side of the inverted water tank (1), and a plurality of discharge holes are formed in the outer side wall of the filling plate (2).

4. The groundwater treatment structure for a tunnel passing under a water-rich sand and gravel layer according to claim 3, characterized in that: The anti-settlement structure further includes a steel mesh (4), and the whole of the steel mesh (4) is vertically fixed at the bottom of the water tank.

5. The groundwater treatment structure for a tunnel under a water-rich sand and pebble layer according to claim 1, characterized in that: A circular hole coaxial with the water collecting cylinder (3) is formed in the bottom of the water collecting cylinder (3), a plurality of sunken holes are formed on the surface of the tunnel, each sunken hole is coaxial with each circular hole, a bolt (9) is arranged inside the sunken hole, one end of the bolt (9) is located inside the water collecting cylinder (3), concrete (5) is filled between the bolt (9) and the sunken hole, and a nut (10) is connected to the outer side wall of the bolt (9) by means of a thread.

6. The groundwater treatment structure for a tunnel passing under a water-rich sand and gravel layer according to claim 5, characterized in that: A sealing gasket (11) is arranged between the nut (10) and the inner wall of the bottom of the water collecting cylinder (3).

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