Tunnel tube well dewatering structure

Abstract

The utility model relates to the technical field of tunnel tube wells, in particular to a tunnel tube well dewatering structure which comprises a dewatering tube component set, the dewatering tube component set comprises an outer nodular cast iron well wall tube, an inner nodular cast iron well wall tube is arranged in the outer nodular cast iron well wall tube, and a bottom sealing plate is arranged at one end of the outer nodular cast iron well wall tube. A concrete foundation is arranged in the outer nodular cast iron well wall pipe, and an upper clay ball sealing filler is arranged at the bottom of the concrete foundation. According to the dewatering structure, water in soil at the bottom of a tunnel ballast bed can be discharged, then the requirement for follow-up inverted arch replacement construction can be met, the dewatering work before inverted arch replacement can be efficiently and rapidly completed, and the efficiency of overall inverted arch replacement construction is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel pipe wells, in particular to a tunnel pipe well dewatering structure. Background Technique

[0002] After an earthquake, the inverted arch of the tunnel shows an upward arching trend, which will cause damage to the tunnel structure. In order to completely eliminate the upward arching disease, it is necessary to demolish and replace the inverted arch. During the process of demolishing and replacing the inverted arch, dewatering treatment needs to be carried out first. In the current construction technology, there is a lack of a structure for efficient dewatering, which reduces the replacement efficiency of the tunnel inverted arch. Content of the Utility Model

[0003] In order to overcome the above technical problems, the purpose of the utility model is to provide a tunnel pipe well dewatering structure to solve the problem of the lack of an efficient dewatering structure in the current replacement of the tunnel inverted arch as mentioned in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A tunnel pipe well dewatering structure includes: a group of dewatering pipe components. The group of dewatering pipe components includes an outer ductile iron well wall pipe. An inner ductile iron well wall pipe is arranged inside the outer ductile iron well wall pipe. A bottom sealing plate is arranged at one end of the outer ductile iron well wall pipe. A concrete foundation is arranged inside the outer ductile iron well wall pipe. Upper clay ball filling is arranged at the bottom of the concrete foundation. Stone filter material is arranged at the bottom of the upper clay ball filling. Lower clay ball filling is arranged at the bottom of the stone filter material. Glass fiber filament packing is arranged inside the inner ductile iron well wall pipe. Ceramic packing is arranged at the bottom of the glass fiber filament packing. A separating fiber sheet is arranged at the bottom of the ceramic packing. A lower storage pipe is arranged at the bottom of the separating fiber sheet. A resistance ring is arranged inside the lower storage pipe. A submersible pump is arranged inside the resistance ring. A liquid discharge pipe is arranged at one end of the submersible pump. An outer drainage pipe is arranged outside the group of dewatering pipe components. A tunnel side ditch is arranged outside the outer drainage pipe.

[0006] Preferably: There are twelve groups of the dewatering pipe component groups, and the twelve groups of dewatering pipe component groups are divided into four columns with three groups in each column and arranged at the position of the inverted arch replacement roadbed. One end of the liquid discharge pipe is connected to the water outlet end of the submersible pump, and the other end of the liquid discharge pipe is connected to the outer drainage pipe. The outer drainage pipe communicates with the twelve groups of dewatering pipe component groups, and the outer drainage pipe is connected to the tunnel side ditch.

[0007] Preferably, the diameter of the outer ductile iron well wall pipe is larger than that of the inner ductile iron well wall pipe. The inner ductile iron well wall pipe is located inside the outer ductile iron well wall pipe. One end and the bottom of the outer ductile iron well wall pipe and the inner ductile iron well wall pipe are connected to the bottom plate. The outer ductile iron well wall pipe is arranged in the tunnel roadbed through a groove.

[0008] Preferably, multiple groups of through holes are provided in the middle positions of both the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The lower clay ball seal is located at the bottom of the gravel filter. The lower clay ball seal fills the space between the outer ductile iron well wall pipe, the inner ductile iron well wall pipe and the bottom plate. The gravel filter fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The upper clay ball seal is located above the gravel filter. The upper clay ball seal fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The concrete foundation fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The concrete foundation is located above the upper clay ball seal.

[0009] Preferably, the gravel filter is located at the middle position of the outer ductile iron well wall pipe and the inner ductile iron well wall pipe where there are multiple groups of through holes. The bottom of the lower storage pipe is connected to the bottom plate. The lower storage pipe is connected to the blocking ring. Multiple groups of through holes are provided in the blocking ring. The bottom of the separating fiber sheet contacts the top of the blocking ring.

[0010] Preferably, the ceramic filler fills the space between the inner ductile iron well wall pipe and the separating fiber sheet. The glass fiber filament filler is located above the ceramic filler. The glass fiber filament filler fills the inner ductile iron well wall pipe.

[0011] Preferably, the blocking ring contacts the drain pipe through the through hole. The submersible pump is installed at the bottom position of the inner wall of the lower storage pipe.

[0012] Preferably, the water inlet end of the submersible pump is located at the bottom position of the inner wall of the lower storage pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The tunnel pipe well dewatering structure is provided with a dewatering pipe component group, an external drainage pipe and a tunnel side ditch. After an earthquake, the inverted arch of the tunnel shows an upward arching trend, which will cause damage to the tunnel structure. In order to completely eliminate the upward arch disease, it is necessary to disassemble and replace the inverted arch. During the process of disassembling and replacing the inverted arch, dewatering treatment needs to be carried out first. In the current construction technology, there is a lack of a structure for efficient dewatering, which reduces the replacement efficiency of the tunnel inverted arch. In the corresponding designed dewatering pipe component group, external drainage pipe and tunnel side ditch, after the construction of the overall dewatering structure is completed, the water in the soil under the tunnel bed will enter the gravel filter through the through holes on the outer ductile iron well wall pipe. The gravel filter will initially filter the incoming water. Subsequently, the water liquid passes through the gravel filter and through the through holes of the inner ductile iron well wall pipe until it reaches the fiberglass filler. The fiberglass filler will further filter the water liquid. The water liquid will deposit downward in the fiberglass filler and flow towards the position of the ceramic filler. The ceramic filler will further filter the water liquid. Subsequently, it passes through the partition fiber sheet and the blocking ring and flows into the inner wall bottom position of the lower storage pipe. The submersible pump works to pump the water liquid filtered multiple times from the water inlet end, enters the drain pipe through the drain end, and then discharges the water liquid into the external drainage pipe through the drain pipe. Through the action of the external drainage pipe, the external drainage pipe converges the water liquid discharged from twelve groups of dewatering pipe component groups, discharges the water liquid into the tunnel side ditch, and finally discharges the water liquid through the tunnel side ditch. The design of this dewatering structure is erected before actually disassembling and replacing the deformed inverted arch. Through the action of the dewatering pipe component group, external drainage pipe and tunnel side ditch, the water liquid in the soil at the bottom of the tunnel bed is discharged, so as to meet the subsequent construction requirements for replacing the inverted arch. This dewatering structure can efficiently and quickly complete the dewatering work before replacing the inverted arch, improving the overall construction efficiency of replacing the inverted arch. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the position distribution of the overall dewatering structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the dewatering pipe component group part of the present utility model;

[0017] Figure 3 It is a cross-sectional structure schematic diagram of the dewatering pipe component group part of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 The structure schematic diagram at position A in

[0019] In the figure: 01, Dewatering pipe component group; 11, Outer ductile iron well wall pipe; 12, Inner ductile iron well wall pipe; 13, Bottom sealing plate; 14, Concrete foundation; 15, Upper clay ball filling; 16, Stone filter material; 17, Lower clay ball filling; 18, Glass fiber silk filler; 19, Ceramic filler; 110, Separating fiber sheet; 111, Lower storage pipe; 112, Resistance ring; 113, Submersible pump; 114, Drainage pipe; 02, Outer drainage pipeline; 03, Tunnel side ditch. Detailed implementation manners

[0020] Please refer to Figures 1-4 , an embodiment provided by the present utility model: A tunnel pipe well dewatering structure, comprising: a dewatering pipe component group 01, the dewatering pipe component group 01 includes an outer ductile iron well wall pipe 11, an inner ductile iron well wall pipe 12 is arranged inside the outer ductile iron well wall pipe 11, a bottom sealing plate 13 is arranged at one end of the outer ductile iron well wall pipe 11, a concrete foundation 14 is arranged inside the outer ductile iron well wall pipe 11, an upper clay ball filling 15 is arranged at the bottom of the concrete foundation 14, a stone filter material 16 is arranged at the bottom of the upper clay ball filling 15, a lower clay ball filling 17 is arranged at the bottom of the stone filter material 16, a glass fiber silk filler 18 is arranged inside the inner ductile iron well wall pipe 12, a ceramic filler 19 is arranged at the bottom of the glass fiber silk filler 18, a separating fiber sheet 110 is arranged at the bottom of the ceramic filler 19, a lower storage pipe 111 is arranged at the bottom of the separating fiber sheet 110, a resistance ring 112 is arranged inside the lower storage pipe 111, a submersible pump 113 is arranged inside the resistance ring 112, a drainage pipe 114 is arranged at one end of the submersible pump 113, an outer drainage pipeline 02 is arranged outside the dewatering pipe component group 01, and a tunnel side ditch 03 is arranged outside the outer drainage pipeline 02.

[0021] Twelve groups of dewatering pipe component groups 01 are provided, and the twelve groups of dewatering pipe component groups 01 are divided into four columns with three groups in each column and arranged at the inverted arch replacement track bed position. One end of the drainage pipe 114 is connected to the water outlet end of the submersible pump 113, the other end of the drainage pipe 114 is connected to the outer drainage pipeline 02, the outer drainage pipeline 02 communicates with the twelve groups of dewatering pipe component groups 01, and the outer drainage pipeline 02 is connected to the tunnel side ditch 03.

[0022] The diameter of the outer ductile iron well wall pipe 11 is larger than that of the inner ductile iron well wall pipe 12. The inner ductile iron well wall pipe 12 is located inside the outer ductile iron well wall pipe 11. One end of the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12 is connected to the bottom sealing plate 13. The outer ductile iron well wall pipe 11 is arranged in the tunnel track bed through a groove.

[0023] Multiple groups of through holes are provided in the middle positions of both the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12. The lower clay ball packing 17 is located at the bottom of the gravel filter 16. The lower clay ball packing 17 fills the space between the outer ductile iron well wall pipe 11, the inner ductile iron well wall pipe 12, and the bottom plate 13. The gravel filter 16 fills the space between the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12. The upper clay ball packing 15 is located above the gravel filter 16. The upper clay ball packing 15 fills the space between the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12. The concrete foundation 14 fills the space between the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12. The concrete foundation 14 is located above the upper clay ball packing 15.

[0024] The gravel filter 16 is at the middle position with multiple groups of through holes on the outer ductile iron well wall pipe 11 and the inner ductile iron well wall pipe 12. The lower storage pipe 111 is connected to the bottom of the bottom plate 13. The lower storage pipe 111 is connected to the blocking ring 112. Multiple groups of through holes are provided on the blocking ring 112. The bottom of the separating fiber sheet 110 contacts the top of the blocking ring 112.

[0025] The ceramic packing 19 fills the space between the inner ductile iron well wall pipe 12 and the separating fiber sheet 110. The fiberglass filament packing 18 is located above the ceramic packing 19. The fiberglass filament packing 18 fills the inner ductile iron well wall pipe 12.

[0026] The blocking ring 112 contacts the drain pipe 114 through the through holes. The submersible pump 113 is installed at the bottom position on the inner wall of the lower storage pipe 111.

[0027] The water inlet end of the submersible pump 113 is at the bottom position on the inner wall of the lower storage pipe 111. The gravel filter 16, the fiberglass filament packing 18, the ceramic packing 19, and the separating fiber sheet 110 are all used for filtering the water liquid, and step by step, they block the soil and impurities existing in the water liquid from the outside to the inside, meeting the purpose of only discharging the water liquid in the soil.

[0028] Working principle: After an earthquake, the inverted arch of the tunnel shows an upward arching trend, which will cause damage to the tunnel structure. In order to completely eliminate the upward arching disease, it is necessary to demolish and replace the inverted arch. The process of demolishing and replacing the inverted arch requires prior dewatering treatment. In the current construction technology, there is a lack of a structure for efficient dewatering, which reduces the replacement efficiency of the tunnel inverted arch. In the corresponding designed dewatering pipe component group 01, external drainage pipe 02, and tunnel side ditch 03, after the construction of the overall dewatering structure is completed, the water in the soil under the tunnel bed will enter the gravel filter 16 through the through holes on the external ductile iron well wall pipe 11. The gravel filter 16 will initially filter the incoming water. Subsequently, the water liquid passes through the gravel filter 16 and through the through holes of the internal ductile iron well wall pipe 12 until it reaches the fiberglass filament packing 18. The fiberglass filament packing 18 will further filter the water liquid. The water liquid will deposit downward in the fiberglass filament packing 18 and flow towards the position of the ceramic packing 19. After passing through the ceramic packing 19, the water liquid will be further filtered. Subsequently, it flows through the partition fiber sheet 110 and the blocking ring 112 and into the inner bottom position of the lower storage pipe 111. The submersible pump 113 works to pump the water liquid that has been filtered multiple times from the water inlet end and enters the drain pipe 114 through the drain end. Then, the water liquid is discharged into the external drainage pipe 02 through the drain pipe 114. Through the action of the external drainage pipe 02, the external drainage pipe 02 converges the water liquid discharged from twelve groups of dewatering pipe component groups 01 and discharges the water liquid into the tunnel side ditch 03. Finally, the water liquid is discharged through the tunnel side ditch 03. The design of this dewatering structure is erected before actually demolishing and replacing the deformed inverted arch. Through the action of the dewatering pipe component group 01, external drainage pipe 02, and tunnel side ditch 03, the water liquid in the soil at the bottom of the tunnel bed is discharged, thereby meeting the subsequent construction requirements for replacing the inverted arch. This dewatering structure can efficiently and quickly complete the dewatering work before replacing the inverted arch, improving the overall construction efficiency of replacing the inverted arch.

Claims

1. A precipitation structure for a tunnel pipe well, characterized in that, Comprising: A group of downcomer components, the group of downcomer components includes an outer ductile iron well wall pipe, an inner ductile iron well wall pipe is arranged inside the outer ductile iron well wall pipe, a bottom sealing plate is arranged at one end of the outer ductile iron well wall pipe, a concrete foundation is arranged inside the outer ductile iron well wall pipe, upper clay ball filling is arranged at the bottom of the concrete foundation, gravel filter material is arranged at the bottom of the upper clay ball filling, lower clay ball filling is arranged at the bottom of the gravel filter material, glass fiber filament packing is arranged inside the inner ductile iron well wall pipe, ceramic packing is arranged at the bottom of the glass fiber filament packing, a partition fiber sheet is arranged at the bottom of the ceramic packing, a lower storage pipe is arranged at the bottom of the partition fiber sheet, a resistance ring is arranged inside the lower storage pipe, a submersible pump is arranged inside the resistance ring, a drain pipe is arranged at one end of the submersible pump, an outer drainage pipe is arranged outside the group of downcomer components, and a tunnel side ditch is arranged outside the outer drainage pipe.

2. The dewatering structure for tunnel pipe well according to claim 1, wherein: There are twelve groups of the group of downcomer components, and the twelve groups of downcomer components are divided into four columns with three groups in a column and arranged at the position of the invert replacement roadbed. One end of the drain pipe is connected to the water outlet end of the submersible pump, the other end of the drain pipe is connected to the outer drainage pipe, the outer drainage pipe communicates with the twelve groups of downcomer components, and the outer drainage pipe is connected to the tunnel side ditch.

3. A tunnel pipe well dewatering structure according to claim 1, characterized in that: The diameter of the outer ductile iron well wall pipe is larger than that of the inner ductile iron well wall pipe, the inner ductile iron well wall pipe is located inside the outer ductile iron well wall pipe, one end and the bottom sealing plate of the outer ductile iron well wall pipe and the inner ductile iron well wall pipe are connected, and the outer ductile iron well wall pipe is arranged in the tunnel roadbed through a groove.

4. A tunnel pipe well dewatering structure according to claim 1, characterized in that: Multiple groups of through holes are opened at the middle positions of both the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The lower clay ball filling is located at the bottom of the gravel filter material, and the lower clay ball filling fills the space between the outer ductile iron well wall pipe, the inner ductile iron well wall pipe and the bottom sealing plate. The gravel filter material fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The upper clay ball filling is located above the gravel filter material, and the upper clay ball filling fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe. The concrete foundation fills the space between the outer ductile iron well wall pipe and the inner ductile iron well wall pipe, and the concrete foundation is located above the upper clay ball filling.

5. A tunnel pipe well dewatering structure according to claim 1, characterized in that: The gravel filter material is at the middle position of the outer ductile iron well wall pipe and the inner ductile iron well wall pipe with multiple groups of through holes. The lower storage pipe is connected to the bottom of the bottom sealing plate, the lower storage pipe is connected to the resistance ring, multiple groups of through holes are opened on the resistance ring, and the bottom of the partition fiber sheet contacts the top of the resistance ring.

6. The dewatering structure for tunnel pipe wells according to claim 1, characterized in that: The ceramic packing fills the space between the inner ductile iron well wall pipe and the partition fiber sheet. The glass fiber filament packing is located above the ceramic packing, and the glass fiber filament packing fills the inner ductile iron well wall pipe.

7. A tunnel pipe well dewatering structure according to claim 1, characterized in that: The resistance ring contacts the drain pipe through the through hole, and the submersible pump is installed at the bottom position of the inner wall of the lower storage pipe.

8. A tunnel pipe well dewatering structure according to claim 1, characterized in that: The water inlet end of the submersible pump is at the bottom position of the inner wall of the lower storage pipe.

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