Tunnel construction drainage system and tunnel drainage system

Abstract

The tunnel construction drainage system comprises a plurality of water collecting bins, the water collecting bins are all used for being installed on the side edge of a tunnel bottom plate, the water collecting bins are used for being arranged at intervals in the length direction of a tunnel, every two adjacent water collecting bins communicate with each other through a longitudinal drainage groove, and the longitudinal drainage grooves are communicated with the water collecting bins. A first water pump assembly is connected between every two adjacent water collecting bins; the central water catchment bin is used for being fixed to a hole of the tunnel, the central water catchment bin communicates with the water collecting bin, and the central water catchment bin and the water collecting bin are connected with a second water pump assembly; the water purifying mechanism is mounted on the side, away from the water collecting bin, of the central water catchment bin, the water purifying mechanism communicates with the central water catchment bin, and a purified water outlet is formed in the water purifying mechanism. The water collecting bin and the longitudinal drainage groove are formed in the side edge of the tunnel, accumulated water in the tunnel hole can flow into the water collecting bin or flow into the water collecting bin through the longitudinal drainage groove and the first water pump assembly, and the technical problem that the accumulated water in the tunnel hole can affect the safety of railway tunnel construction is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tunnel construction drainage, in particular to a tunnel construction drainage system and a tunnel drainage system. BACKGROUND

[0002] Due to the mountains in the west, tunnel construction has become an indispensable part. In order to shorten the construction period, improve the construction conditions and improve the engineering safety, the application of inclined shaft technology plays an important role in railway tunnel construction.

[0003] However, due to the complex geological structure, the water-rich area has a greater impact on the railway tunnel construction. The water accumulation in the hole will affect the construction operation, cause the rock structure foundation strength to be reduced, the quality problems such as insufficient guniting, and cause many safety problems such as power transmission line leakage, mechanical equipment movement difficulty, and slippery bottom surface, thereby affecting the safety, progress and quality of the railway tunnel construction. SUMMARY

[0004] The present application provides a tunnel construction drainage system and a tunnel drainage system, which can solve the technical problems that the water accumulation in the hole of the tunnel in the related art will affect the construction operation, cause the rock structure foundation strength to be reduced, the quality problems such as insufficient guniting, and cause many safety problems such as power transmission line leakage, mechanical equipment movement difficulty, and slippery bottom surface, thereby affecting the safety, progress and quality of the railway tunnel construction.

[0005] In a first aspect, the present application provides a tunnel construction drainage system, which comprises: a plurality of water collecting bins, each of the plurality of water collecting bins is arranged on the side of the tunnel floor, and the plurality of water collecting bins are arranged at intervals along the length direction of the tunnel, two adjacent water collecting bins are connected by a longitudinal drainage groove, and a first water pump assembly is connected between the two adjacent water collecting bins; a central water collecting bin is arranged at the tunnel portal, and the central water collecting bin is connected with the water collecting bin, and a second water pump assembly is connected between the central water collecting bin and the water collecting bin; a water purification mechanism is arranged on the side of the central water collecting bin away from the water collecting bin, and the water purification mechanism is connected with the central water collecting bin, and a water purification outlet is arranged on the water purification mechanism.

[0006] In combination with the first aspect, in an embodiment, the water purification mechanism comprises a sedimentation tank, the water purification outlet is arranged on the side of the sedimentation tank away from the central water collecting bin, at least one baffle is arranged in the sedimentation tank, the sedimentation tank is divided into at least two sedimentation grooves by the at least one baffle, the sedimentation groove close to the central water collecting bin is connected with the central water collecting bin, and two adjacent sedimentation grooves are connected by an opening arranged in the baffle, and the opening is arranged close to the top surface of the sedimentation tank.

[0007] With reference to the first aspect, in an embodiment, a top surface of the longitudinal drainage groove is provided with a top surface plate, and the top surface plate is provided with first water seepage holes.

[0008] With reference to the first aspect, in an embodiment, a side plate of the longitudinal drainage groove near a side of the tunnel center is provided with second water seepage holes.

[0009] With reference to the first aspect, in an embodiment, the longitudinal drainage groove is made of cast iron.

[0010] With reference to the first aspect, in an embodiment, the central water collection bin is communicated with the water purifying mechanism through a water ditch, and a height of the water ditch near a side of the central water collection bin is higher than a height of the water ditch near a side of the water purifying mechanism.

[0011] With reference to the first aspect, in an embodiment, the water ditch comprises a first horizontal section connected to the central water collection bin, and an inclined section communicated with the first horizontal section; and a second horizontal section connected to an end of the inclined section away from the first horizontal section, and connected to the water purifying mechanism.

[0012] The second aspect provides a tunnel drainage system, which comprises a tunnel provided with the tunnel construction drainage system, and the tunnel has a bottom plate, and opposite sides of the bottom plate are provided with a plurality of water collection bins.

[0013] With reference to the second aspect, in an embodiment, the bottom plate is inclined to extend from a middle position of the tunnel to both sides, and a height of the bottom plate near the middle position of the tunnel is higher than heights of both sides of the bottom plate; and the tunnel construction drainage system further comprises a horizontal drainage groove, an extending direction of the horizontal drainage groove is perpendicular to the longitudinal drainage groove, and the horizontal drainage groove is communicated with the longitudinal drainage groove on both sides of the bottom plate.

[0014] With reference to the second aspect, in an embodiment, the tunnel comprises a slope shaft provided with the water collection bin on one side, and a main tunnel communicated with the slope shaft, and a cross-sectional dimension of the main tunnel is greater than a cross-sectional dimension of the slope shaft, and both sides of the main tunnel are provided with the water collection bin, and the water collection bin on one side of the main tunnel is communicated with the water collection bin of the slope shaft.

[0015] The technical scheme provided by the embodiments of the present application has the following beneficial effects:

[0016] By setting the water collecting bin and the longitudinal drainage groove on the floor side of the tunnel, the water accumulated in the tunnel can be directly flowed into the water collecting bin or flowed into or pumped into the water collecting bin through the longitudinal drainage groove and the first water pump assembly, and finally the water in the water collecting bin is pumped into the central water collecting bin through the second water pump assembly, and the pumped water can be preliminarily purified through the water purification mechanism and then discharged through the water purification outlet, thereby solving the technical problem that the water accumulated in the tunnel affects the safety, progress and quality of the railway tunnel construction in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0018] Figure 1 A partial structure schematic diagram of the tunnel drainage system provided by the embodiment of the present application is shown in the figure.

[0019] Figure 2 A three-dimensional structure schematic diagram of the longitudinal drainage groove provided by the embodiment of the present application is shown in the figure.

[0020] Figure 3 A three-dimensional structure schematic diagram of the top panel provided by the embodiment of the present application is shown in the figure.

[0021] Figure 4 A front view structure schematic diagram of the inclined shaft provided by the embodiment of the present application is shown in the figure.

[0022] Figure 5 A front view structure schematic diagram of the main tunnel provided by the embodiment of the present application is shown in the figure.

[0023] Figure 6 A three-dimensional structure schematic diagram of the sedimentation tank provided by the embodiment of the present application is shown in the figure.

[0024] In the figure:

[0025] 1, water collecting bin;

[0026] 2, longitudinal drainage groove; 21, top panel; 211, first water seepage hole; 22, side plate; 221, second water seepage hole;

[0027] 3, central water collecting bin;

[0028] 4, water purification mechanism; 41, water purification outlet; 42, sedimentation tank; 43, baffle; 431, opening; 44, sedimentation groove;

[0029] 5, water ditch;

[0030] 6, tunnel; 61, bottom plate;

[0031] 7. A transverse drainage channel. DETAILED DESCRIPTION

[0032] In order to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0033] The tunnel construction drainage system provided by the embodiments of the present application can solve the technical problem that the water accumulation in the tunnel hole in the related art affects the construction operation, causes the quality problems such as the decrease of the strength of the rock layer structure foundation, the insufficient guniting, and many safety problems such as the electric leakage of the power transmission line, the difficulty of the movement of the mechanical equipment, the wet and slippery bottom surface, and thus affects the safety, progress and quality of the railway tunnel construction.

[0034] Referring to Figure 1 As shown in the figure, the tunnel construction drainage system provided by the embodiments of the present application can include: a plurality of water collecting bins 1, each of the plurality of water collecting bins 1 is arranged on the side of the tunnel 6 bottom plate 61, and the plurality of water collecting bins 1 are arranged at intervals along the length direction of the tunnel 6, two adjacent water collecting bins 1 are connected through a longitudinal drainage channel 2, and a first water pump assembly is connected between the two adjacent water collecting bins 1, so that the water in one water collecting bin 1 can be pumped into another water collecting bin 1; a central water collecting bin 3, the central water collecting bin 3 is arranged at the tunnel 6 opening, and the central water collecting bin 3 is connected with the water collecting bin 1, and a second water pump assembly is connected between the central water collecting bin 3 and the water collecting bin 1, so that the water in the tunnel 6 can flow into the central water collecting bin 3 through the water collecting bin 1 and the longitudinal drainage channel 2; a water purification mechanism 4, the water purification mechanism 4 is arranged on the side of the central water collecting bin 3 away from the water collecting bin 1, and the water purification mechanism 4 is connected with the central water collecting bin 3, and the water purification mechanism 4 is provided with a water purification outlet 41, so that the water can be discharged from the water purification outlet 41 after being purified by the water purification mechanism 4, which can effectively avoid the pollution of the environment.

[0035] The embodiment of the present application can make the water accumulated in the tunnel 6 directly flow into the water collecting bin 1 or flow into or be pumped into the water collecting bin 1 through the longitudinal drainage groove 2 and the first water pump assembly, and finally the water in the water collecting bin 1 is pumped into the central water collecting bin 3 through the second water pump assembly, the longitudinal drainage groove 2 can also be arranged at the side of the bottom plate 61, so as not to affect the construction in the tunnel 6, preferably, the top surface of the longitudinal drainage groove and the top surface of the water collecting bin 1 are both lower than the top surface of the bottom plate 61 close to them, so that the water at the bottom plate 61 can flow into the longitudinal drainage groove 2 and the water collecting bin 1 smoothly, the pumped water can also be preliminarily purified through the water purification mechanism 4 and then discharged through the water purification outlet 41, it should be understood that the water purification mechanism 4 only filters or partially removes impurities in the water. In the embodiment of the present application, the water accumulated in the tunnel 6 is discharged from the tunnel 6 through the water collecting bin 1 and the longitudinal drainage groove 2, and the technical problem that the water accumulated in the tunnel 6 in the related art affects the safety, progress and quality of the railway tunnel construction is solved.

[0036] Preferably, one of the two adjacent water collecting bins 1 far away from the central water collecting bin 3 can be regarded as a first water collecting bin 1, and one of the water collecting bins 1 close to the central water collecting bin 3 can be regarded as a second water collecting bin 1, the first water pump assembly between the first water collecting bin 1 and the second water collecting bin 1 can be specifically provided in the following manner: the water inlet end of the water pump is arranged at the first water collecting bin 1, and the water outlet end of the water pump is arranged at the second water collecting bin 1, so that the water in the first water collecting bin 1 can be pumped into the second water collecting bin 1. Preferably, a water pumping pipe can also be arranged in the longitudinal drainage groove 2 between the first water collecting bin 1 and the second water collecting bin 1, and the water in the first water collecting bin 1 enters the second water collecting bin 1 through the water pumping pipe. The second water pump assembly can be connected with the central water collecting bin 3 and one of the water collecting bins 1 close to the central water collecting bin 3, the water inlet end of the second water pump assembly extends into the water collecting bin 1, and the water outlet end extends into the central water collecting bin 3, so as to pump the water in the water collecting bin 1 into the central water collecting bin 3, and a water pumping pipe can also be arranged between the water collecting bin 1 and the central water collecting bin 3.

[0037] In some optional embodiments, the tunnel 6 can be a railway tunnel, and the water accumulated in the tunnel 6 is rainwater. Figure 6As shown, the water purification mechanism 4 can include a sedimentation tank 42, the water purification outlet 41 is opened on the side of the sedimentation tank 42 away from the central water collecting bin 3, at least one baffle 43 is fixed in the sedimentation tank 42, at least one baffle 43 separates the sedimentation tank 42 into at least two sedimentation tanks 44; the sedimentation tank 44 close to the central water collecting bin 3 is communicated with the central water collecting bin 3, and the adjacent two sedimentation tanks 44 are communicated through the opening 431 opened in the baffle 43, the opening 431 is arranged close to the top surface of the sedimentation tank 42, in the embodiment of the application, two baffles 43 can be arranged, the two baffles 43 separate the sedimentation tank 42 into three sedimentation tanks 44, the three sedimentation tanks 44 are regarded as a first sedimentation tank 44, a second sedimentation tank 44 and a third sedimentation tank 44 arranged in sequence, wherein the first sedimentation tank 44 is arranged on the side of the second sedimentation tank 44 close to the central water collecting bin 3, specifically, the water of the central water collecting bin 3 first enters the first sedimentation tank 44, after a certain period of sedimentation, the impurities in the water are preliminarily deposited, and the water on the upper layer flows out from the opening 431, and the above is sequentially repeated until the water enters the third sedimentation tank 44 and flows out from the water purification outlet 41 after sedimentation, after the water in the tunnel 6 is deposited by the sedimentation tank 42, the resources can be used as much as possible, and the pollution caused by the water in the tunnel 6 to the environment can be effectively reduced. The sedimentation tank 42 and the baffle 43 can be cast with C30 concrete, which can not only meet the quality of the sedimentation tank 42, but also reduce the construction cost of the sedimentation tank 42, the overall size of the sedimentation tank 42 can be set as 12*4*3 meters, and the size of the three sedimentation tanks 44 divided by the sedimentation tank 42 is 3.5*3.5*2.75 meters, and the size of the opening 431 on each baffle 43 can be 25*25 cm.

[0038] In some optional embodiments, referring to Figure 3 As shown, the top surface of the longitudinal drainage groove 2 is provided with a top panel 21, the top panel 21 is provided with a first water seepage hole 211, the first water seepage hole 211 can be in a strip shape, and a plurality of first water seepage holes 211 in a strip shape can be arranged along the length direction of the longitudinal drainage groove 2, the first water seepage hole 211 arranged on the top panel 21 can not only reduce the larger impurities in the tunnel 6 from entering the longitudinal drainage groove 2, but also enable the water on the top surface of the tunnel 6 bottom plate 61 to seep into the longitudinal drainage groove 2 and then flow into the water collecting bin 1.

[0039] In some optional embodiments, referring to Figure 2As shown, the longitudinal drainage groove 2 is provided with a second water seepage hole 221 on the side plate 22 close to one side of the tunnel 6 center, the second water seepage hole 221 can also be provided in a strip shape, and a plurality of second water seepage holes 221 are provided along the length direction of the longitudinal drainage groove 2, the second water seepage hole 221 is provided on the side of the longitudinal drainage groove 2 at this time, which is conducive to introducing the rock stratum water at the bottom of the tunnel 6 bottom plate 61 into the longitudinal drainage groove 2, that is, to make the water in the tunnel 6 flow out of the tunnel 6 from the longitudinal drainage groove 2 as much as possible, and further reduce the influence of accumulated water on railway tunnel construction.

[0040] Preferably, the longitudinal drainage groove 2 is made of cast iron, and the longitudinal drainage groove 2 and the water collecting bin 1 can be dug into a certain groove before assembly, and then buried in the groove, and after the tunnel 6 is completed, the longitudinal drainage groove 2 and the water collecting bin 1 can be taken out from the groove for use in the next construction site, so as to reduce the construction cost of the tunnel 6, and preferably, the longitudinal drainage groove 2 can be provided in a rectangular shape.

[0041] In some optional embodiments, the central water collecting bin 3 and the water purifying mechanism 4 are communicated through the water ditch 5, and the height of the water ditch 5 close to one side of the central water collecting bin 3 is higher than the height of the water ditch 5 close to one side of the water purifying mechanism 4, and preferably, the water purifying mechanism 4 can be arranged 100 m away from the tunnel 6 opening to reduce the influence of the water purifying mechanism 4 on the tunnel construction, so that the water in the central water collecting bin 3 can smoothly flow out during the process of being introduced into the water purifying mechanism 4, and the risk of water overflowing from the water ditch 5 during the process of flowing out is reduced, therefore the size of the water ditch 5 can be set as 0.4*0.6 meters, and the water ditch 5 as the connecting link of the central water collecting bin 3 and the water purifying mechanism 4 can be poured with C35 concrete.

[0042] In some optional embodiments, the water ditch 5 can include a first horizontal section and an inclined section communicated with the first horizontal section, the first horizontal section is connected to the central water collecting bin 3; a second horizontal section, the second horizontal section is connected to one end of the inclined section away from the first horizontal section, and the second horizontal section is connected to the water purifying mechanism 4, that is, the first horizontal section and the second horizontal section close to the central water collecting bin 3 and the water purifying mechanism 4 of the water ditch 5 can be provided as horizontal sections without slope, the horizontal section can buffer the water flowing out of the central water collecting bin 3 and the water flowing into the water purifying mechanism 4, the length of the first horizontal section and the second horizontal section can be set as 2 m, and the angle of the inclined section can be set as having a slope of 5%, the construction height of the central water collecting bin 3 is higher than that of the water purifying mechanism 4, so that the water can flow more smoothly from the central water collecting bin 3 into the water purifying mechanism 4.

[0043] The embodiment of the present application can also provide a tunnel drainage system, which can comprise: a tunnel 6, wherein the tunnel 6 is provided with the tunnel construction drainage system described above, and the tunnel 6 has a floor 61, and the floor 61 is provided with a plurality of water collecting sumps 1 on opposite sides.

[0044] In some optional embodiments, the floor 61 extends obliquely from the middle position of the tunnel 6 towards the two sides, and the height of the floor 61 near the middle of the tunnel 6 is higher than that of the two sides of the floor 61, that is, the floor 61 of the tunnel 6 can be provided with a certain slope, and the floor 61 is inclined from the middle of the tunnel 6 towards the two sides in a direction perpendicular to the longitudinal drainage groove 2, and the inclination angle can be 2%, so that the water in the middle of the floor 61 can flow towards the two sides; the tunnel construction drainage system further comprises a transverse drainage groove 7, the extension direction of the transverse drainage groove 7 is perpendicular to the longitudinal drainage groove 2, and the transverse drainage groove 7 is in communication with the longitudinal drainage groove 2 on the opposite sides of the floor 61, the transverse drainage groove 7 can be embedded in the floor 61, and the top surface of the transverse drainage groove 7 is lower than the top surface of the floor 61 on the side thereof, so that the water on the floor 61 can flow into the transverse drainage groove 7. Preferably, a plurality of transverse drainage grooves 7 can be provided, and two adjacent transverse drainage grooves 7 can be arranged at intervals of 25 m, and since the water flow in each part of the tunnel 6 can not be uniform, the specific arrangement position and interval of the transverse drainage groove 7 can be adjusted according to the actual situation, and the transverse drainage grooves 7 can be arranged more densely in the place where the water seepage amount in the tunnel 6 is larger, and can be arranged sparsely in the place where the water seepage amount is smaller. Further, the top end of the transverse drainage groove 7 can also be provided with a top panel 21, the top panel 21 is also provided with a first water seepage hole 211, and the side of the drainage groove can also be provided with a second water seepage hole 221, so as to achieve the same effect as the first water seepage hole 211 and the second water seepage hole 221 in the longitudinal drainage groove 2. Further, the transverse drainage groove 7 and the longitudinal drainage groove 2 are closed without holes near the downhill panel and the floor panel, and are provided with uniformly arranged first water seepage holes 211 near the uphill panel.

[0045] In some optional embodiments, referring to Figure 4 and Figure 5As shown, the tunnel 6 can further include: an inclined shaft, one side of the inclined shaft being provided with the water collecting chamber 1; a vertical hole, the vertical hole being communicated with the inclined shaft, and the vertical hole having a cross-sectional dimension greater than that of the inclined shaft, and both sides of the vertical hole being provided with the water collecting chamber 1, and the water collecting chamber 1 on one side of the vertical hole being communicated with the water collecting chamber 1 of the inclined shaft. In the embodiment of the present application, the width of the inclined shaft along the vertical direction of the longitudinal drainage groove 2 can be less than that of the vertical hole along the vertical direction of the longitudinal drainage groove 2. The bottom plate 61 is arranged at the inclined shaft and the vertical hole. The water collecting chamber 1 at the inclined shaft is arranged on one side of the bottom plate 61, that is, the water collecting chamber 1 can be arranged on only one side of the inclined shaft, so that the drainage at the inclined shaft can meet the requirements of the inclined shaft, and the use of materials can be saved. The bottom plate 61 at the inclined shaft can be inclined to one side by an angle of 2%.

[0046] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0048] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A tunnel construction drainage system, characterized in that, It comprises: A plurality of water collecting bins (1), each of which is arranged on the side of the bottom plate (61) of the tunnel (6) and is arranged along the length direction of the tunnel (6), two adjacent water collecting bins (1) are communicated through a longitudinal drainage groove (2), and a first water pump assembly is arranged on the two adjacent water collecting bins (1); A central water collecting bin (3) is arranged on the opening of the tunnel (6) and communicated with the water collecting bin (1), and a second water pump assembly is arranged on the central water collecting bin (3) and the water collecting bin (1); A water purifying mechanism (4) is arranged on the side of the central water collecting bin (3) away from the water collecting bin (1), and the water purifying mechanism (4) is communicated with the central water collecting bin (3), and a water purifying outlet (41) is arranged on the water purifying mechanism (4).

2. The tunnel construction drainage system according to claim 1, wherein: The water purifying mechanism (4) comprises a sedimentation tank (42), the water purifying outlet (41) is arranged on the side of the sedimentation tank (42) away from the central water collecting bin (3), at least one baffle (43) is arranged in the sedimentation tank (42), and the sedimentation tank (42) is divided into at least two sedimentation grooves (44) by the at least one baffle (43); The sedimentation groove (44) close to the central water collecting bin (3) is communicated with the central water collecting bin (3), and two adjacent sedimentation grooves (44) are communicated through an opening (431) arranged on the baffle (43), and the opening (431) is arranged close to the top surface of the sedimentation tank (42).

3. The tunnel construction drainage system according to claim 1, wherein: A top plate (21) is arranged on the top surface of the longitudinal drainage groove (2), and the top plate (21) is provided with a first water permeation hole (211).

4. The tunnel construction drainage system according to claim 1, wherein: A second water permeation hole (221) is arranged on the side plate (22) of the longitudinal drainage groove (2) close to the center of the tunnel (6).

5. The tunnel construction drainage system according to claim 1, wherein: The longitudinal drainage groove (2) is made of cast iron.

6. The tunnel construction drainage system according to claim 1, wherein: The central water collecting bin (3) and the water purifying mechanism (4) are communicated through a water channel (5), and the height of the side of the water channel (5) close to the central water collecting bin (3) is higher than the height of the side of the water channel (5) close to the water purifying mechanism (4).

7. The tunneling drainage system of claim 6, wherein, The water channel (5) comprises: A first horizontal section and an inclined section communicated with the first horizontal section, the first horizontal section is connected to the central water collecting bin (3); A second horizontal section, the second horizontal section is connected to one end of the inclined section away from the first horizontal section, and the second horizontal section is connected to the water purifying mechanism (4).

8. A tunnel drainage system characterized in that, It comprises: A tunnel (6) is provided with the tunnel construction drainage system according to any one of claims 1-7, and the tunnel (6) has a floor (61), and opposite sides of the floor (61) are each provided with a plurality of water collecting sumps (1).

9. The tunnel drainage system according to claim 8, characterized in that: The floor (61) extends obliquely from a middle position of the tunnel (6) towards both sides, and a height of the floor (61) near the middle of the tunnel (6) is higher than that of both sides of the floor (61). The tunnel construction drainage system further comprises transverse drainage channels (7) extending perpendicularly to the longitudinal drainage channels (2), and the transverse drainage channels (7) are in communication with the longitudinal drainage channels (2) on opposite sides of the floor (61).

10. The tunnel drainage system of claim 8, wherein, The tunnel (6) comprises: An inclined shaft, one side of the inclined shaft being provided with the water collecting sumps (1); A main tunnel, the main tunnel being in communication with the inclined shaft, a cross-sectional dimension of the main tunnel being larger than that of the inclined shaft, both sides of the main tunnel being provided with the water collecting sumps (1), and the water collecting sumps (1) on one side of the main tunnel being in communication with the water collecting sumps (1) of the inclined shaft.

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