Tunnel air exhaust and water drainage conversion device and system

Abstract

The utility model relates to a tunnel air exhaust and water drainage conversion device and system, in particular to the technical field of tunnel construction, and is provided with a main pipeline, a first three-way joint and a second three-way joint, and a first ball valve and a third ball valve can be synchronously switched between a first opening state and a first closing state during use; the second ball valve and the fourth ball valve can be synchronously switched between a second opening state and a second closing state, so that when the first opening state corresponds to the second closing state, the main pipeline supplies air to the excavation tunnel face, and when the first closing state corresponds to the second opening state, the main pipeline discharges accumulated water on the excavation tunnel face to a sewage treatment station; the purpose of using the air pipe system for ventilation in the tunnel in the tunnel excavation operation process as an emergency drainage pipeline is achieved, the function of rapidly draining water inrush in the tunnel can be achieved when the conditions of water inrush and the like occur in the tunnel, accumulated water accumulation is avoided, and potential safety hazards of tunnel construction are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel ventilation and drainage conversion device and system. Background Art

[0002] When constructing long and large tunnels, reverse slope tunnel excavation is one of the commonly used techniques. When using the reverse slope excavation method for tunnel construction, it is necessary to pump out the accumulated water on the face of the reverse slope tunnel.

[0003] In the prior art, when draining the accumulated water on the face of a reverse slope tunnel, a drainage pipeline is usually set up for discharge. However, due to the risk of water inrush on the face of a long tunnel, the drainage capacity will be insufficient if the existing pumping system is used. If a temporary drainage pipeline is added, it will take a long time to lay and the cost will be high, making it difficult to meet the on-site pumping needs, which will eventually lead to a large amount of water in the tunnel, and in serious cases, the risk of well flooding accidents. Utility Model Content

[0004] The main purpose of this application is to provide a tunnel ventilation and drainage conversion device and system, which aims to solve the problem that the related technology uses the inherent pumping system which will result in insufficient pumping and drainage capacity. If a drainage pipeline is temporarily added, it will take a long time to lay and the cost is high, which makes it difficult to meet the on-site pumping needs, and ultimately lead to a large amount of water accumulation in the tunnel, and in serious cases, the technical problem of well flooding accidents.

[0005] To achieve the above objectives, in a first aspect, the present application proposes a tunnel ventilation and drainage conversion device, comprising:

[0006] A main pipe, the main pipe extending from the tunnel portal to the excavation face of the tunnel along the excavation direction of the tunnel, the position of the main pipe close to the tunnel portal is a first end, and an end of the main pipe close to the excavation face is a second end;

[0007] a first three-way joint, wherein the first three-way joint has a first inlet, a second inlet and a first outlet which are interconnected, the first outlet is sealed and connected to the first end, a first ball valve is provided on the first inlet, and the first ball valve is connected to the air compressor through a pipeline, a second ball valve is provided on the second inlet, and the second ball valve is connected to an external sewage treatment station through a pipeline; and,

[0008] a second three-way joint, wherein the second three-way joint has a third inlet, a second outlet and a third outlet that are interconnected, the third inlet is connected to the second end, a third ball valve is provided on the second outlet to form an air outlet, and a fourth ball valve is provided on the third outlet, and the fourth ball valve is connected to the first water pump through a pipeline;

[0009] The first ball valve and the third ball valve can be synchronously switched between a first open state and a first closed state, and the second ball valve and the fourth ball valve can be synchronously switched between a second open state and a second closed state. When the first open state corresponds to the second closed state, the main pipeline supplies air to the excavation face, and when the first closed state corresponds to the second open state, the main pipeline discharges the accumulated water on the excavation face to the sewage treatment station.

[0010] In one embodiment, the main pipe is connected to a pump station disposed between the first end and the second end.

[0011] In one embodiment, the pump station comprises:

[0012] a first water tank, wherein the first water tank is disposed in the tunnel;

[0013] A third three-way joint, the third three-way joint having a fourth inlet, a fourth outlet and a fifth outlet that are interconnected, the fourth inlet being connected to the first water tank through a pipeline; and

[0014] A fourth three-way joint, wherein the fourth three-way joint has a fifth inlet, a sixth inlet and a sixth outlet which are interconnected, the fifth outlet is connected to the fifth inlet through a pipeline, the sixth inlet is connected to a second water pump placed in the first water storage tank through a pipeline, and the sixth outlet is connected to the second end through a pipeline.

[0015] In one embodiment, a fifth ball valve is disposed between the fifth outlet and the fifth inlet, and the fifth ball valve is switchable between the first open state and the first closed state.

[0016] In one embodiment, a sixth ball valve is disposed on the fourth outlet, and the sixth ball valve is switchable between the second open state and the second closed state.

[0017] In one embodiment, a seventh ball valve is disposed on the sixth inlet, and the seventh ball valve is switchable between the second open state and the second closed state.

[0018] In one embodiment, when the first closed state corresponds to the second open state, the fifth ball valve is in the first closed state.

[0019] In one embodiment, there are a plurality of pumping stations, and the plurality of pumping stations are arranged at intervals along the extension direction of the tunnel.

[0020] In one embodiment, the main pipe is made of a steel pipe.

[0021] Based on the same technical concept, in a second aspect, the utility model also proposes a tunnel exhaust and drainage conversion system, which applies the tunnel exhaust and drainage conversion device described in the first aspect.

[0022] One or more technical solutions proposed in this application have at least the following technical effects:

[0023] The technical solution of the present application is to set a main pipeline, a first three-way joint and a second three-way joint. The main pipeline extends from the tunnel portal to the excavation face of the tunnel along the excavation direction of the tunnel. The position of the main pipeline close to the tunnel portal is the first end, and the end close to the excavation face is the second end. The first three-way joint has a first inlet, a second inlet and a first outlet that are interconnected. The first outlet is sealed and connected to the first end. A first ball valve is arranged on the first inlet, and the first ball valve is connected to the air compressor through a pipeline. A second ball valve is arranged on the second inlet, and the second ball valve is connected to an external sewage treatment station through a pipeline. The second three-way joint has a third inlet, a second outlet and a third outlet that are interconnected. The third inlet is connected to the second end. A third ball valve is arranged on the second outlet to form an outlet. A fourth ball valve is arranged on the third outlet. The pipeline is connected with the first water pump, so that when the utility model is in use, the first ball valve and the third ball valve can be synchronously switched between the first open state and the first closed state, and the second ball valve and the fourth ball valve can be synchronously switched between the second open state and the second closed state, and when the first open state corresponds to the second closed state, the main pipeline supplies air to the excavation face, and when the first closed state corresponds to the second open state, the main pipeline discharges the accumulated water on the excavation face to the sewage treatment station, thereby enabling the utility model to achieve the purpose of using the air duct system used for ventilation in the tunnel during the tunnel excavation operation as an emergency drainage pipeline, and thereby enabling the utility model to quickly drain the gushing water in the tunnel when water gushing occurs in the tunnel, thereby avoiding the accumulation of accumulated water and reducing the safety hazards of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 This is a schematic diagram of the structure of a tunnel ventilation and drainage conversion device exemplified in this application;

[0027] Figure 2 A schematic diagram of the structure of the drainage state of the tunnel ventilation and drainage conversion device exemplified in this application;

[0028] Figure 3 A schematic diagram of the structure of the exhaust state of the tunnel exhaust and drainage conversion device exemplified in this application;

[0029] Figure 4 This is a schematic diagram of the structure of the tunnel ventilation and drainage conversion system used as an example in this application.

[0030] Description of Figure Numbers:

[0031] 100, main line; 110, first end; 120, second end;

[0032] 200, first three-way connector; 210, first inlet; 220, second inlet; 230, first outlet; 240, first ball valve; 250, second ball valve;

[0033] 300, second three-way connector; 310, third inlet; 320, second outlet; 330, third outlet; 340, third ball valve; 350, fourth ball valve; 360, first water pump;

[0034] 400, pump station; 410, first water storage tank; 420, third three-way joint; 421, fourth inlet; 422, fourth outlet; 423, fifth outlet; 430, fourth three-way joint; 431, fifth inlet; 432, sixth inlet; 433, sixth outlet; 440, second water pump; 450, fifth ball valve; 460, sixth ball valve; 470, seventh ball valve; 500, water pumping pipeline.

[0035] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] 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 of 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.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0039] Based on this, see Figures 1 to 4 , the present application proposes a tunnel ventilation and drainage conversion device and system.

[0040] See also Figures 1 to 4 The tunnel exhaust and drainage conversion device comprises a main pipeline 100, a first three-way joint 200 and a second three-way joint 300. The main pipeline 100 extends from the tunnel portal to the tunnel excavation face along the tunnel excavation direction. The position of the main pipeline 100 close to the tunnel portal is the first end 110, and the end close to the excavation face is the second end 120. The first three-way joint 200 has a first inlet 210, a second inlet 220 and a first outlet 230 that are interconnected. The first outlet 230 is sealed and connected to the first end 110. A first ball valve 240 is arranged on the first inlet 210, and the first ball valve 240 is connected to the air compressor through a pipeline. A second ball valve 250 is arranged on the second inlet 220, and the second ball valve 250 is connected to an external sewage treatment station through a pipeline. The second three-way joint 300 It has a third inlet 310, a second outlet 320 and a third outlet 330 which are interconnected. The third inlet 310 is connected to the second end 120. A third ball valve 340 is arranged on the second outlet 320 to form an air outlet. A fourth ball valve 350 is arranged on the third outlet 330. The fourth ball valve 350 is connected to the first water pump 360 through a pipeline. The first ball valve 240 and the third ball valve 340 can be synchronously switched between a first open state and a first closed state, and the second ball valve 250 and the fourth ball valve 350 can be synchronously switched between a second open state and a second closed state. When the first open state corresponds to the second closed state, the main pipeline 100 supplies air to the excavated face. When the first closed state corresponds to the second open state, the main pipeline 100 discharges the accumulated water on the excavated face to the sewage treatment station.

[0041] In this embodiment, by providing a main pipeline 100, a first three-way joint 200 and a second three-way joint 300, the main pipeline 100 extends from the tunnel portal to the tunnel excavation face along the tunnel excavation direction, the main pipeline 100 close to the tunnel portal is the first end 110, and the end close to the excavation face is the second end 120, the first three-way joint 200 has a first inlet 210, a second inlet 220 and a first outlet 230 that are interconnected, and the first outlet 230 is connected to the first end 110. 10 is sealed and connected, a first ball valve 240 is provided on the first inlet 210, and the first ball valve 240 is connected to the air compressor through a pipeline, a second ball valve 250 is provided on the second inlet 220, and the second ball valve 250 is connected to the external sewage treatment station through a pipeline, and the second three-way joint 300 has a third inlet 310, a second outlet 320 and a third outlet 330 that are connected to each other, the third inlet 310 is connected to the second end 120, and the third ball valve 340 is provided on the second outlet 320 to An air outlet is formed, and a fourth ball valve 350 is arranged on the third outlet 330. The fourth ball valve 350 is connected to the first water pump 360 through a pipeline, so that when the utility model is in use, the first ball valve 240 and the third ball valve 340 can be synchronously switched between the first open state and the first closed state, and the second ball valve 250 and the fourth ball valve 350 can be synchronously switched between the second open state and the second closed state, and when the first open state corresponds to the second closed state, the main pipeline 100 supplies air to the excavation face, and when the first closed state corresponds to the second open state, the main pipeline 100 discharges the accumulated water on the excavation face to the sewage treatment station, so that the utility model realizes the purpose of using the air duct system used for ventilation in the tunnel during the tunnel excavation operation as an emergency drainage pipeline, so that when the utility model has water gushing in the tunnel, it can realize the function of quickly draining the gushing water in the tunnel, avoiding the accumulation of accumulated water and reducing the safety hazards of tunnel construction.

[0042] In one embodiment, the main pipeline 100 is connected to a pump station 400 disposed between the first end 110 and the second end 120 .

[0043] In some exemplary embodiments, the pump station 400 includes a first water tank 410, a third three-way joint 420, and a fourth three-way joint 430. The first water tank 410 is disposed in a tunnel. The third three-way joint 420 has a fourth inlet 421, a fourth outlet 422, and a fifth outlet 423 that are interconnected. The fourth inlet 421 is connected to the first water tank 410 through a pipeline. The fourth three-way joint 430 has a fifth inlet 431, a sixth inlet 432, and a sixth outlet 433 that are interconnected. The fifth outlet 423 is connected to the fifth inlet 431 through a pipeline. The sixth inlet 432 is connected to the second pump 440 placed in the first water tank 410 through a pipeline. The sixth outlet 433 is connected to the second end 120 through a pipeline. A fifth ball valve 450 is disposed between the fifth outlet 423 and the fifth inlet 431. The fifth ball valve 450 can be switched between a first open state and a first closed state. The fourth outlet 422 is provided with a sixth ball valve 460, which can be switched between a second open state and a second closed state. The sixth inlet 432 is provided with a seventh ball valve 470, which can be switched between a second open state and a second closed state. When the first closed state corresponds to the second open state, the fifth ball valve 450 is in the first closed state. There are a plurality of pumping stations 400, and the plurality of pumping stations 400 are arranged at intervals along the extension direction of the tunnel.

[0044] In this embodiment, a plurality of pumping stations 400 are arranged along the extension direction of the tunnel. When in use, the water pumped out by the plurality of first water pumps 360 passes through each pumping station 400 in sequence, thereby realizing the function of gradient pumping.

[0045] In one embodiment, the main pipe 100 is made of a steel pipe.

[0046] Based on the same technical concept, in a second aspect, the utility model also proposes a tunnel exhaust and drainage conversion system, which applies the tunnel exhaust and drainage conversion device of the first aspect.

[0047] The high-pressure air in the tunnel is pressed into the face through a DN250 steel pipe by an air compressor outside the tunnel. The high-pressure air duct is set side by side with the pumping pipe. A ball valve is added through a tee to connect the high-pressure air duct to pump station 400. The ball valve is opened in case of an emergency. A ball valve and a water inlet pipe are added through a tee to connect the water pump to the face section. A ball valve and a water outlet pipe are added through a tee at the air compressor room at the entrance of the tunnel to make the high-pressure air duct a temporary drainage pipe. A water pump is added at the end of the face as an emergency drainage system.

[0048] At the high-pressure air duct passing through the pump station 400, the water inlet and outlet pipes are set through a tee. The inlet and outlet pipes are opened and closed with ball valves, and a ball valve is set in the middle pipe. When a sudden water inrush occurs, stop ventilation, close the ball valves at the air compressor room, the pump station 400, and the end of the air duct, open the newly added ball valve, and the high-pressure air duct is transferred to the temporary emergency drainage system.

[0049] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A tunnel ventilation and drainage conversion device, characterized in that: include: A main pipe, the main pipe extending from the tunnel portal to the excavation face of the tunnel along the excavation direction of the tunnel, the position of the main pipe close to the tunnel portal is a first end, and an end of the main pipe close to the excavation face is a second end; a first three-way joint, wherein the first three-way joint has a first inlet, a second inlet and a first outlet which are interconnected, the first outlet is sealed and connected to the first end, a first ball valve is provided on the first inlet, and the first ball valve is connected to the air compressor through a pipeline, a second ball valve is provided on the second inlet, and the second ball valve is connected to an external sewage treatment station through a pipeline; and, a second three-way joint, wherein the second three-way joint has a third inlet, a second outlet and a third outlet that are interconnected, the third inlet is connected to the second end, a third ball valve is provided on the second outlet to form an air outlet, and a fourth ball valve is provided on the third outlet, and the fourth ball valve is connected to the first water pump through a pipeline; The first ball valve and the third ball valve can be synchronously switched between a first open state and a first closed state, and the second ball valve and the fourth ball valve can be synchronously switched between a second open state and a second closed state. When the first open state corresponds to the second closed state, the main pipeline supplies air to the excavation face, and when the first closed state corresponds to the second open state, the main pipeline discharges the accumulated water on the excavation face to the sewage treatment station.

2. The tunnel ventilation and drainage conversion device according to claim 1, characterized in that: The main pipe is connected to a pump station located between the first end and the second end.

3. The tunnel ventilation and drainage conversion device according to claim 2, characterized in that: The pump station comprises: a first water tank, wherein the first water tank is disposed in the tunnel; A third three-way joint, the third three-way joint having a fourth inlet, a fourth outlet and a fifth outlet that are interconnected, the fourth inlet being connected to the first water tank through a pipeline; and A fourth three-way joint, wherein the fourth three-way joint has a fifth inlet, a sixth inlet and a sixth outlet which are interconnected, the fifth outlet is connected to the fifth inlet through a pipeline, the sixth inlet is connected to a second water pump placed in the first water storage tank through a pipeline, and the sixth outlet is connected to the second end through a pipeline.

4. The tunnel ventilation and drainage conversion device according to claim 3, characterized in that: A fifth ball valve is disposed between the fifth outlet and the fifth inlet, and the fifth ball valve is switchable between the first open state and the first closed state.

5. The tunnel ventilation and drainage conversion device according to claim 4, characterized in that: The fourth outlet is provided with a sixth ball valve, and the sixth ball valve is switchable between the second open state and the second closed state.

6. The tunnel ventilation and drainage conversion device according to claim 5, characterized in that: The sixth inlet is provided with a seventh ball valve, and the seventh ball valve is switchable between the second open state and the second closed state.

7. The tunnel ventilation and drainage conversion device according to claim 6, characterized in that: When the first closed state corresponds to the second open state, the fifth ball valve is in the first closed state.

8. The tunnel ventilation and drainage conversion device according to any one of claims 2 to 7, characterized in that: There are a plurality of pumping stations, and the plurality of pumping stations are arranged at intervals along the extending direction of the tunnel.

9. The tunnel ventilation and drainage conversion device according to any one of claims 1 to 7, characterized in that: The main pipe is made of steel pipe.

10. A tunnel ventilation and drainage conversion system, characterized in that: A tunnel ventilation and drainage conversion device as described in any one of claims 1 to 9 is used.

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