Tunnel construction sewage disposal diversion structure

Abstract

The utility model provides a clean-up and flow-dividing structure for tunnel construction, which relates to the technical field of tunnel construction and comprises a tunnel body. When reverse slope drainage is carried out, sewage can be collected in the tunneling section under the action of natural terrain, and the water pumping part can be used for respectively cleaning sewage and clear water in the tunneling section and the primary lining section under different construction conditions; sewage in the secondary lining side ditch unfinished section and the secondary lining side ditch finished section can be collected into the sewage discharge part through the sewage collection part, and clear water in the secondary lining side ditch unfinished section and the secondary lining side ditch finished section can be collected into the clear water discharge part through the clear water collection part. Collected sewage and clear water are respectively discharged in a centralized manner through the sewage discharge part and the clear water discharge part, so that the sewage and the clear water generated according to different construction conditions in reverse slope drainage can be subjected to split-flow treatment and discharge, and the operation load and the operation cost of the tunnel portal sewage treatment station are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel construction sewage cleaning and diversion structure. Background Art

[0002] With the rapid development of my country's railway engineering and the gradual improvement of ecological and environmental protection systems, environmental issues arising from railway tunnel construction are attracting increasing attention, particularly the treatment of tunnel construction wastewater. The main sources of railway tunnel construction wastewater include: ① gushing water generated when the tunnel passes through unfavorable geology; ② small amounts of wastewater generated by construction machinery, which typically contains oil; ③ wastewater used for dust suppression during construction, which typically contains up to several thousand mg / L of SS; and ④ wastewater generated during shotcrete and grouting, which often exhibits abnormal pH values ​​and elevated alkalinity.

[0003] At present, there is an urgent need for a tunnel cleaning and sewage diversion construction structure to achieve the cleaning and sewage separation of construction wastewater. It can not only effectively reduce the difficulty of tunnel construction wastewater treatment; but also reduce the operating load and operating costs of the tunnel entrance sewage treatment station. Utility Model Content

[0004] The purpose of the utility model is to provide a sewage diversion structure for tunnel construction, aiming to solve the problems in the prior art that sewage diversion is difficult and the operation load and operating cost of the sewage treatment station at the tunnel entrance are high.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a tunnel construction sewage diversion structure comprises a tunnel body; the tunnel body is divided into an excavation section, a primary lining section, an unfinished section of a secondary lining side ditch and a completed section of a secondary lining side ditch, and the sewage from the excavation section and the primary lining section can be collected into a sump near the heading face under the action of the natural terrain; a pumping part: arranged in the excavation section and the primary lining section, capable of discharging the sewage and clean water generated in the excavation section and the primary lining section from the excavation section and the primary lining section, and capable of diverting and discharging the sewage and clean water; a sewage discharge part: arranged in the completed section of the secondary lining side ditch, and used to discharge the sewage in the tunnel body The sewage collection part is arranged in the unfinished section and the completed section of the second lining side ditch, and can collect the sewage generated in the unfinished section and the completed section of the second lining side ditch, and finally discharge the sewage through the sewage discharge part; the clean water discharge part is arranged in the completed section of the second lining side ditch, and is used to collect the clean water in the tunnel body and discharge it in a centralized manner; the clean water collection part is arranged in the unfinished section and the completed section of the second lining side ditch, and is used to collect the clean water in the unfinished section and the completed section of the second lining side ditch, and can discharge the collected clean water through the clean water discharge part.

[0006] A further technical solution of the present invention is that the pumping part includes a water pump arranged in a sump, a first sewage tank and a first clean water tank are hung on the inner wall of the unfinished section of the second lining side ditch, the output end of the water pump is fixedly connected with a tee, and the other two ends of the tee are respectively connected with the first sewage tank and the first clean water tank. The water in the sump can be pumped into the first sewage tank and the first clean water tank by the water pump, and valves are installed at both ends of the tee close to the first sewage tank and the first clean water tank for controlling the water entering the first sewage tank and the first clean water tank. When the water pump pumps sewage, the valve on the first sewage tank is opened and the valve on the first clean water tank is closed, and the sewage can enter the first sewage tank. When the water pump pumps clean water, the valve on the first clean water tank is opened and the valve on the first sewage tank is closed, and the clean water can enter the first clean water tank, so that the sewage and clean water of the excavation section and the primary lining section are discharged and diverted.

[0007] A further technical solution of the present invention is that the sewage discharge part includes a second sewage tank suspended on the inner wall of the completed section of the second lining side ditch, the first sewage tank and the second sewage tank are connected by a first connecting pipe, a water pump is provided in the first sewage tank, the output end of the water pump is fixedly connected to one end of the first connecting pipe located in the first sewage tank, the second sewage tank is provided with a water pump, the output end of the water pump is fixedly connected to the first discharge pipe, and the sewage in the second sewage tank is discharged into the tunnel through the water pump.

[0008] A further technical solution of the present utility model is that the sewage collection part includes a sewage ditch opened on the inner bottom surface of the tunnel body, and the sewage ditch is located in the unfinished section of the second lining side ditch and the completed section of the second lining side ditch. The sewage can flow into the sewage ditch. The first sewage tank and the second sewage tank are both connected with a third connecting pipe, and the other end of the third connecting pipe extends into the sewage ditch. The sewage in the sewage ditch can be pumped into the first sewage tank and the second sewage tank by a water pump.

[0009] A further technical solution of the present invention is that the clean water discharge part includes a second clean water tank suspended on the inner wall of the completed section of the second lining side ditch, the first clean water tank and the second clean water tank are connected by a second connecting pipe, a water pump is provided in the first clean water tank, the output end of the water pump is fixedly connected to one end of the second connecting pipe located in the first clean water tank, the water pump can pump the clean water in the first clean water tank into the second clean water tank, the second clean water tank is provided with a water pump, the output end of the water pump is fixedly connected to the second discharge pipe, and the water pump can discharge the clean water in the second clean water tank into the tunnel.

[0010] A further technical solution of the present invention is that the clean water collection part includes a side ditch body arranged on the inner walls on both sides of the tunnel body, and the side ditch body is located in the completed section of the second lining side ditch, and the clean water will flow into the side ditch body along the inner wall of the tunnel body. The two side ditch bodies are fixedly connected to a temporary drainage pipe at one end close to the heading face. The temporary drainage pipe is located in the unfinished section of the second lining side ditch, and the end of the temporary drainage pipe away from the side ditch body is connected to the first clean water tank. The clean water in the side ditch body can enter the first clean water tank through the temporary drainage pipe. The second clean water tank is fixedly connected with a water pipe, and the end of the water pipe away from the second clean water tank is located in the side ditch body, and the clean water in the side ditch body can enter the second clean water tank through the water pipe.

[0011] A further technical solution of the present invention is that a retaining wall is fixedly connected to the inner side of the sewage ditch and the side ditch body at one end away from the tunnel face.

[0012] The beneficial effects of the utility model are:

[0013] When reverse slope drainage is carried out, sewage will be collected in the excavation section under the influence of natural terrain. The pumping unit can clean the sewage and clean water in the excavation section and the primary lining section separately under different construction conditions. The sewage collection unit can collect the sewage in the unfinished section and the completed section of the second lining side ditch into the sewage discharge unit through the set sewage collection unit. The clean water in the unfinished section and the completed section of the second lining side ditch can be collected into the clean water discharge unit through the set clean water collection unit. The collected sewage and clean water are respectively discharged centrally through the sewage discharge unit and the clean water discharge unit. Therefore, in reverse slope drainage, the sewage and clean water generated according to different construction conditions can be diverted for treatment and discharged, thereby reducing the operating load and operating cost of the tunnel portal sewage treatment station. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a plan view of the tunnel body in a specific embodiment of the present invention when looking down.

[0015] In the figure: 1. Tunnel body; 11. Excavation section; 12. Primary lining section; 13. Unfinished section of secondary lining ditch; 14. Completed section of secondary lining ditch; 2. Pumping section; 21. Pumping pump; 22. Tee; 23. First sewage tank; 24. First clean water tank; 3. Sewage discharge section; 31. Second sewage tank; 32. First connecting pipe; 33. First discharge pipe; 4. Sewage collection section; 41. Sewage ditch; 42. Third connecting pipe; 5. Clean water discharge section; 51. Second clean water tank; 52. Second connecting pipe; 53. Second discharge pipe; 6. Clean water collection section; 61. Side ditch body; 62. Temporary drainage pipe; 63. Water pipe; 7. Retaining wall. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1 As shown, a tunnel construction sewage diversion structure includes a tunnel body 1, which is divided into an excavation section 11, a primary lining section 12, an unfinished section 13 of a secondary lining side ditch, and a completed section 14 of a secondary lining side ditch. The sewage from the excavation section 11 and the primary lining section 12 can be collected into a sump near the tunnel face under the action of natural terrain. A pumping unit 2 is provided in the excavation section 11 and the primary lining section 12, which can discharge the sewage and clean water generated by the excavation section 11 and the primary lining section 12 from the excavation section 11 and the primary lining section 12, and can divert and discharge the sewage and clean water. The pumping unit 2 includes a pumping pump 21 provided in the sump, which can conveniently extract and discharge the sewage. A first sewage tank 23 and a first clean water tank 24 are hung on the inner wall of the unfinished section 13 of the secondary lining side ditch. The output end of the pumping pump 21 is fixedly connected to a three-way pipe 22. The other two ends of the tee pipe 22 are respectively connected to the first sewage tank 23 and the first clean water tank 24. The water in the sump can be pumped into the first sewage tank 23 and the first clean water tank 24 by the water pump 21. Valves are installed at both ends of the tee pipe 22 close to the first sewage tank 23 and the first clean water tank 24 for controlling the water entering the first sewage tank 23 and the first clean water tank 24. When the water pump 21 pumps sewage, the valve on the first sewage tank 23 is opened and the valve on the first clean water tank 24 is closed, and the sewage can enter the first sewage tank 23. When the water pump 21 pumps clean water, the valve on the first clean water tank 24 is opened and the valve on the first sewage tank 23 is closed, and the clean water can enter the first clean water tank 24, so that the sewage and clean water of the excavation section 11 and the primary lining section 12 are discharged to be diverted.

[0018] Furthermore, a sewage discharge part 3 is provided in the completed section 14 of the second lining side ditch, which is used to collect the sewage in the tunnel body 1 and discharge it in a centralized manner. The sewage discharge part 3 includes a second sewage tank 31 suspended on the inner wall of the completed section 14 of the second lining side ditch. The first sewage tank 23 and the second sewage tank 31 are connected through a first connecting pipe 32. A water pump is provided in the first sewage tank 23, and the output end of the water pump is fixedly connected to one end of the first connecting pipe 32 located in the first sewage tank 23. When the water pump is started, the sewage in the first sewage tank 23 can be discharged into the second sewage tank 31 through the first connecting pipe 32. A water pump is provided in the second sewage tank 31, and the output end of the water pump is fixedly connected to the first discharge pipe 33. The sewage in the second sewage tank 31 is discharged into the tunnel through the water pump.

[0019] Furthermore, a sewage collecting part 4 is provided in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch, which can collect the sewage generated in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch, and finally discharge the sewage through the sewage discharge part 3. The sewage collecting part 4 includes a sewage ditch 41 opened on the bottom surface of the tunnel body 1, and the sewage ditch 41 is located in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch. The sewage generated during the spraying of concrete can flow into the sewage ditch 41. The first sewage tank 23 and the second sewage tank 31 are both connected to the third connecting pipe 42, and the other end of the third connecting pipe 42 extends into the sewage ditch 41. The sewage in the sewage ditch 41 can be pumped into the first sewage tank 23 and the second sewage tank 31 by a water pump, and then discharged into the tunnel through the first sewage tank 23 and the second sewage tank 31.

[0020] Furthermore, a clean water discharge portion 5 is provided in the second lining side ditch completion section 14, which is used to collect the clean water in the tunnel body 1 and discharge it in a centralized manner. The clean water discharge portion 5 includes a second clean water tank 51 suspended on the inner wall of the second lining side ditch completion section 14. The first clean water tank 24 and the second clean water tank 51 are connected through a second connecting pipe 52. A water pump is provided in the first clean water tank 24, and the output end of the water pump is fixedly connected to one end of the second connecting pipe 52 located in the first clean water tank 24. The water pump can pump the clean water in the first clean water tank 24 into the second clean water tank 51. A water pump is provided in the second clean water tank 51, and the output end of the water pump is fixedly connected to the second discharge pipe 53. The water pump can discharge the clean water in the second clean water tank 51 into the tunnel.

[0021] Furthermore, a clean water collecting portion 6 is provided in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch, for collecting the clean water in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch, and capable of discharging the collected clean water through the clean water discharge portion 5. The clean water collecting portion 6 includes a side ditch body 61 provided on the inner wall of both sides of the tunnel body 1, and the side ditch body 61 is located in the completed section 14 of the second lining side ditch. When the concrete is not sprayed, the clean water generated will flow into the side ditch body 61 along the inner wall of the tunnel body 1. The ends of the two side ditch bodies 61 close to the working face are fixedly connected. There is a temporary drainage pipe 62, which is located in the unfinished section 13 of the second lining side ditch, and the end of the temporary drainage pipe 62 away from the side ditch body 61 is connected to the first clean water tank 24. The clean water in the side ditch body 61 can enter the first clean water tank 24 through the temporary drainage pipe 62. The second clean water tank 51 is fixedly connected with a water pipe 63, and the end of the water pipe 63 away from the second clean water tank 51 is located in the side ditch body 61. The clean water in the side ditch body 61 can enter the second clean water tank 51 through the water pipe 63, and finally the clean water is discharged into the tunnel through the second clean water tank 51.

[0022] It should be noted that: in this example, when drainage needs to be carried out along the slope, clean water can flow directly out of the outside of the tunnel body 1 along the clean water collection part 6 under the influence of the terrain, and sewage can flow out of the outside of the tunnel body 1 through the sewage ditch 41, thereby achieving the situation where clean water and sewage can be discharged separately when draining along the slope.

[0023] like Figure 1 As shown, the sewage ditch 41 and the side ditch body 61 are fixedly connected to a retaining wall 7 at one end away from the tunnel face, which is used to seal the ends of the sewage ditch 41 and the side ditch body 61, and prevent sewage and clean water from leaking from the sewage ditch 41 and the side ditch body 61 in the case of reverse slope drainage.

[0024] Working principle: When reverse slope drainage is carried out, sewage will be collected in the excavation section 11 under the influence of natural terrain, and then the pumping unit 2 will be started. The pumping unit 2 can clean the sewage and clean water in the excavation section 11 and the primary lining section 12 separately under different construction conditions. The sewage collecting unit 4 can collect the sewage in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch into the sewage discharge unit 3, and the clean water collecting unit 6 can collect the clean water in the unfinished section 13 of the second lining side ditch and the completed section 14 of the second lining side ditch into the clean water discharge unit 5. Then the collected sewage and clean water are discharged centrally through the sewage discharge unit 3 and the clean water discharge unit 5 respectively. Therefore, in reverse slope drainage, the sewage and clean water generated according to different construction conditions can be diverted and discharged, thereby reducing the operating load and operating cost of the tunnel portal sewage treatment station.

[0025] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0026] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tunnel construction sewage diversion structure, characterized by: The tunnel body (1) comprises a tunneling section (11), a primary lining section (12), an unfinished secondary lining ditch section (13), and a completed secondary lining ditch section (14); sewage from the tunneling section (11) and the primary lining section (12) can be collected into a sump near the tunnel face under the influence of natural terrain; A pumping unit (2) is provided in the excavation section (11) and the primary lining section (12), and is capable of discharging sewage and clean water generated by the excavation section (11) and the primary lining section (12) from the excavation section (11) and the primary lining section (12), and is capable of diverting and discharging the sewage and clean water; Sewage discharge section (3): arranged in the completed section (14) of the secondary lining side ditch, for collecting sewage in the tunnel body (1) and discharging it centrally; Sewage collecting section (4): arranged in the unfinished section (13) of the secondary lining side ditch and the completed section (14) of the secondary lining side ditch, capable of collecting sewage generated in the unfinished section (13) of the secondary lining side ditch and the completed section (14) of the secondary lining side ditch, and finally discharging the sewage through the sewage discharge section (3); Clean water discharge section (5): arranged in the secondary lining side ditch completion section (14), used to collect clean water in the tunnel body (1) and discharge it centrally; Clean water collecting portion (6): arranged in the unfinished section (13) of the secondary lining side ditch and the completed section (14) of the secondary lining side ditch, for collecting clean water in the unfinished section (13) of the secondary lining side ditch and the completed section (14) of the secondary lining side ditch, and capable of discharging the collected clean water through the clean water discharging portion (5).

2. A tunnel construction sewage diversion structure according to claim 1, characterized in that: The pumping unit (2) includes a pump (21) arranged in the sump, a first sewage tank (23) and a first clean water tank (24) are suspended on the inner wall of the unfinished section (13) of the second lining side ditch, an output end of the pump (21) is fixedly connected to a tee pipe (22), and the other two ends of the tee pipe (22) are respectively connected to the first sewage tank (23) and the first clean water tank (24), and water in the sump can be pumped into the first sewage tank (23) and the first clean water tank (24) by the pump (21), and the tee pipe (22) is close to the two ends of the first sewage tank (23) and the first clean water tank (24). Valves are installed for controlling the water entering the first sewage tank (23) and the first clean water tank (24). When the pump (21) extracts sewage, the valve on the first sewage tank (23) is opened and the valve on the first clean water tank (24) is closed, so that sewage can enter the first sewage tank (23). When the pump (21) extracts clean water, the valve on the first clean water tank (24) is opened and the valve on the first sewage tank (23) is closed, so that clean water can enter the first clean water tank (24), so that sewage and clean water in the excavation section (11) and the primary lining section (12) are discharged and diverted.

3. A tunnel construction sewage diversion structure according to claim 2, characterized in that: The sewage discharge portion (3) includes a second sewage tank (31) suspended on the inner wall of the second lining side ditch completion section (14); the first sewage tank (23) and the second sewage tank (31) are connected via a first connecting pipe (32); a water pump is provided in the first sewage tank (23); the output end of the water pump is fixedly connected to one end of the first connecting pipe (32) located in the first sewage tank (23); a water pump is provided in the second sewage tank (31); the output end of the water pump is fixedly connected to the first discharge pipe (33); and the sewage in the second sewage tank (31) is discharged into the tunnel via the water pump.

4. A tunnel construction sewage diversion structure according to claim 3, characterized in that: The sewage collecting portion (4) includes a sewage ditch (41) provided on the inner bottom surface of the tunnel body (1), and the sewage ditch (41) is located in the unfinished section (13) of the second lining side ditch and the completed section (14) of the second lining side ditch. Sewage can flow into the sewage ditch (41). The first sewage tank (23) and the second sewage tank (31) are both connected with a third connecting pipe (42), and the other end of the third connecting pipe (42) extends into the sewage ditch (41). The sewage in the sewage ditch (41) can be pumped into the first sewage tank (23) and the second sewage tank (31) by a water pump.

5. A tunnel construction sewage diversion structure according to claim 4, characterized in that: The clean water discharge portion (5) includes a second clean water tank (51) suspended on the inner wall of the second lining side ditch completion section (14); the first clean water tank (24) and the second clean water tank (51) are connected via a second connecting pipe (52); a water pump is provided in the first clean water tank (24); the output end of the water pump is fixedly connected to one end of the second connecting pipe (52) located in the first clean water tank (24); the water pump can pump clean water in the first clean water tank (24) into the second clean water tank (51); a water pump is provided in the second clean water tank (51); the output end of the water pump is fixedly connected to the second discharge pipe (53); the water pump can discharge clean water in the second clean water tank (51) into the tunnel.

6. A tunnel construction sewage diversion structure according to claim 5, characterized in that: The clean water collecting part (6) includes a side ditch body (61) provided on the inner wall of both sides of the tunnel body (1), and the side ditch body (61) is located in the completed section (14) of the second lining side ditch. Clean water flows into the side ditch body (61) along the inner wall of the tunnel body (1). One end of the two side ditch bodies (61) close to the face is fixedly connected with a temporary drainage pipe (62). The temporary drainage pipe (62) is located in the unfinished section (13) of the second lining side ditch, and the temporary drainage pipe (62) is away from the tunnel. One end of the side ditch body (61) is connected to the first clean water tank (24), and the clean water in the side ditch body (61) can enter the first clean water tank (24) through the temporary drainage pipe (62). The second clean water tank (51) is fixedly connected with a water pipe (63), and one end of the water pipe (63) away from the second clean water tank (51) is located in the side ditch body (61), and the clean water in the side ditch body (61) can enter the second clean water tank (51) through the water pipe (63).

7. A tunnel construction sewage diversion structure according to any one of claims 1 to 6, characterized in that: A retaining wall (7) is fixedly connected to the sewage ditch (41) and the side ditch body (61) at one end away from the tunnel face.

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