A tunnel drainage system based on the layout of the hole fire pool structure

Abstract

The utility model discloses a kind of hole fire reservoir structures based on tunnel drainage system layout, belong to tunnel fire-fighting technical field.The structure includes tunnel A and tunnel B, the lower side of several The lateral drainage branch ditch of channel is equipped with, the lateral drainage branch ditch includes branch ditch main body, one end of the branch ditch main body extends to the bottom of tunnel A, and is communicated with the center circular pipe ditch A and / or longitudinal drainage side ditch A being arranged in tunnel A, another end of branch ditch main body extends to the bottom of tunnel B, and is communicated with the center circular pipe ditch B and / or longitudinal drainage side ditch B being arranged in tunnel B, the bottom plate of the branch ditch main body is sunk and is equipped with fire reservoir in middle part.Underground water in tunnel drainage system can be collected into fire reservoir, to provide relatively stable water resource supply point for tunnel fire water, water supply route is relatively shorter, and significantly reduce the potential risk of water supply interruption.

Description

Technical Field

[0001] This utility model relates to a structure of an in-tunnel fire-fighting water storage tank based on a tunnel drainage system, belonging to the field of tunnel fire protection technology. Background Technology

[0002] Firefighting water in tunnels is a crucial fire-fighting material for responding to sudden tunnel fires and a vital resource for ensuring the safety of personnel and property within the tunnel. Therefore, ensuring a stable supply of firefighting water is a critical task that tunnel operations must implement to a high standard. Currently, most tunnel firefighting water comes from high- and low-level water tanks outside the tunnel. However, the stability of this water supply is affected by many factors, and the supply route is relatively long, posing a potential risk of water supply interruption. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a structure for an in-tunnel fire-fighting water storage tank based on the tunnel drainage system.

[0004] This utility model is achieved through the following technical solution: A fire-fighting water storage tank structure based on a tunnel drainage system includes tunnel A and tunnel B. Tunnel B is connected to tunnel A through several transverse passages. Each of the transverse passages has a transverse drainage branch ditch on its lower side. Each transverse drainage branch ditch includes a branch ditch body. One end of the branch ditch body extends to the bottom of tunnel A and is connected to a central circular pipe ditch A and / or a longitudinal drainage side ditch A located in tunnel A. The other end of the branch ditch body extends to the bottom of tunnel B and is connected to a central circular pipe ditch B and / or a longitudinal drainage side ditch B located in tunnel B. A fire-fighting water storage tank is recessed in the middle of the bottom slab of the branch ditch body.

[0005] The depth of the fire-fighting water storage tank is less than 1.5m.

[0006] The longitudinal slope of the main bottom plate of the branch ditches on both sides of the fire water storage tank is such that the end closer to the fire water storage tank is lower than the other end.

[0007] The bottom slabs of the branch ditches on both sides of the fire-fighting water storage tank are equipped with sand-collecting blocks.

[0008] The top of the branch trenches on both sides of the fire-fighting water storage tank is provided with an inspection port that connects to the cross passage. The inspection port is equipped with an inspection cover and is connected to the bottom plate of the branch trench body by an inspection ladder.

[0009] The main body of the branch ditch is connected to the longitudinal drainage ditch A in tunnel A and the longitudinal drainage ditch B in tunnel B through the side ditch connection well.

[0010] The side ditch connection well includes a side ditch excavated water collection channel, a large particle filter baffle, and a connection hole. The side ditch excavated water collection channel is located at the bottom of the longitudinal drainage side ditch A or the longitudinal drainage side ditch B. The large particle filter baffle is located at the top of the side ditch excavated water collection channel. The connection hole is located on the lower side of the side ditch excavated water collection channel and connects the bottom of the side ditch excavated water collection channel with the top of the transverse drainage branch ditch.

[0011] The drainage ditch is designed with a shape and size that gradually decreases from top to bottom, and the large particle filter baffle is a rainwater grate.

[0012] Structural reinforcement beams are provided at the intersections of the transverse drainage ditch with the lining structures of Tunnel A and Tunnel B.

[0013] The beneficial effects of this utility model are as follows: Considering that there is a continuous source of groundwater resources within the tunnel drainage system, this utility model arranges transverse drainage branches connected to the central circular pipe trench A, longitudinal drainage side trench A, central circular pipe trench B, and longitudinal drainage side trench B of the tunnel drainage system below the vehicular and pedestrian cross passages. A fire-fighting water storage tank is installed in the middle of the bottom slab of the branch trench body. This allows the groundwater in the tunnel drainage system to be collected into the fire-fighting water storage tank. With the necessary pumping equipment, a relatively stable water resource supply point can be provided for fire-fighting in the tunnel. The water supply route is relatively short, and the potential risk of water supply interruption is significantly reduced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention when the main body of the branch trench is connected to the central circular pipe trench A and the central circular pipe trench B.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention when the main body of the branch ditch is connected to the longitudinal drainage ditch A and the longitudinal drainage ditch B.

[0016] Figure 3 This is a schematic diagram of the structure of the longitudinal drainage ditch A or longitudinal drainage ditch B of this utility model after assembly with the main body of the branch ditch and the connecting well of the ditch.

[0017] In the diagram: 1-Tunnel A, 2-Tunnel B, 3-Cross passage, 4-Central circular pipe trench A, 5-Central circular pipe trench B, 6-Transverse drainage branch trench, 61-Branch body, 62-Sedimentation block, 63-Inspection port, 64-Inspection cover plate, 65-Inspection ladder, 7-Longitudinal drainage ditch A, 8-Side ditch connecting well, 81-Side ditch excavated water collection channel, 82-Large particle filter baffle, 83-Connecting hole, 9-Structural reinforcing beam, 10-Longitudinal drainage ditch B, 11-Fire-fighting water storage tank. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] Example 1: like Figure 1 As shown, the present invention discloses a tunnel fire-fighting water storage tank structure based on a tunnel drainage system, comprising tunnel A1 and tunnel B2. Tunnel B2 is connected to tunnel A1 through multiple transverse passages 3. Each of the multiple transverse passages 3 has a transverse drainage branch ditch 6 on its lower side. The transverse drainage branch ditch 6 includes a branch ditch body 61. One end of the branch ditch body 61 extends to the bottom of tunnel A1 and is connected to a central circular pipe ditch A4 located in tunnel A1. The other end of the branch ditch body 61 extends to the bottom of tunnel B2 and is connected to a central circular pipe ditch B5 located in tunnel B2. A fire-fighting water storage tank 11 is sunken in the middle of the bottom plate of the branch ditch body 61.

[0020] Considering that there is a continuous source of groundwater resources within the tunnel drainage system, this utility model arranges transverse drainage branches 6 connected to the central circular pipe trench A4 and central circular pipe trench B5 of the tunnel drainage system below the vehicle and pedestrian cross passages 3. A fire-fighting water storage tank 11 is sunken in the middle of the bottom plate of the branch trench body 61. This allows the groundwater in the tunnel drainage system to be collected into the fire-fighting water storage tank. With the necessary pumping equipment, a relatively stable water resource supply point can be provided for fire-fighting in the tunnel. The water supply route is relatively short, and the potential risk of water supply interruption is significantly reduced.

[0021] The depth of the fire-fighting water storage tank 11 is less than 1.5m; to prevent people from accidentally falling into the fire-fighting water storage tank 11 and drowning.

[0022] The longitudinal slope of the bottom plate of the branch ditch body 61 on both sides of the fire water storage tank 11 is such that the end closer to the fire water storage tank 11 is lower than the other end. This allows the water discharged into the branch ditch body 61 by the tunnel drainage system in tunnel A1 and tunnel B2 to converge into the fire water storage tank 11.

[0023] The bottom plate of the branch ditch body 61 on both sides of the fire-fighting water storage tank 11 is equipped with sedimentation blocks 62. The sedimentation blocks 62 prevent silt and sand in the water flow from entering the fire-fighting water storage tank 11.

[0024] The top of the branch ditch body 61 on both sides of the fire-fighting water storage tank 11 is provided with an inspection port 63 that communicates with the cross passage 3. An inspection cover 64 is installed at the inspection port 63, and the inspection port 63 is connected to the bottom plate of the branch ditch body 61 through an inspection ladder 65. The inspection ports 63 on both sides of the fire-fighting water storage tank 66 serve as daily maintenance passages, fire-fighting water intake passages, and passages for transporting sediment intercepted by the sedimentation baffle 62.

[0025] Structural reinforcing beams 9 are provided at the intersections of the transverse drainage branch 6 with the lining structures of tunnels A1 and B2. The structural reinforcing beams 9 are made of reinforced concrete and ensure the structural reliability of the intersections of the transverse drainage branch 6 with the lining structures of tunnels A1 and B2.

[0026] Example 2: like Figure 2 and Figure 3 As shown, the present invention discloses a tunnel fire-fighting water storage tank structure based on a tunnel drainage system, comprising tunnel A1 and tunnel B2. Tunnel B2 is connected to tunnel A1 through multiple transverse passages 3. Each of the multiple transverse passages 3 has a transverse drainage branch ditch 6 on its lower side. The transverse drainage branch ditch 6 includes a branch ditch body 61. One end of the branch ditch body 61 extends to the bottom of tunnel A1 and is connected to a longitudinal drainage side ditch A7 located in tunnel A1. The other end of the branch ditch body 61 extends to the bottom of tunnel B2 and is connected to a longitudinal drainage side ditch B10 located in tunnel B2. A fire-fighting water storage tank 11 is sunken in the middle of the bottom plate of the branch ditch body 61.

[0027] Considering that there is a continuous source of groundwater resources within the tunnel drainage system, this utility model arranges transverse drainage branches 6 below the vehicular and pedestrian cross passages 3, which are connected to the longitudinal drainage side ditches A7 and B10 of the tunnel drainage system. A fire-fighting water storage tank 11 is sunken in the middle of the bottom plate of the branch ditch body 61. This allows the groundwater in the tunnel drainage system to be collected into the fire-fighting water storage tank. With the necessary pumping equipment, a relatively stable water resource supply point can be provided for fire-fighting in the tunnel. The water supply route is relatively short, and the potential risk of water supply interruption is significantly reduced.

[0028] The depth of the fire-fighting water storage tank 11 is less than 1.5m; to prevent people from accidentally falling into the fire-fighting water storage tank 11 and drowning.

[0029] The longitudinal slope of the bottom plate of the branch ditch body 61 on both sides of the fire water storage tank 11 is such that the end closer to the fire water storage tank 11 is lower than the other end. This allows the water discharged into the branch ditch body 61 by the tunnel drainage system in tunnel A1 and tunnel B2 to converge into the fire water storage tank 11.

[0030] The bottom plate of the branch ditch body 61 on both sides of the fire-fighting water storage tank 11 is equipped with sedimentation blocks 62. The sedimentation blocks 62 prevent silt and sand in the water flow from entering the fire-fighting water storage tank 11.

[0031] The top of the branch ditch body 61 on both sides of the fire-fighting water storage tank 11 is provided with an inspection port 63 that communicates with the cross passage 3. An inspection cover 64 is installed at the inspection port 63, and the inspection port 63 is connected to the bottom plate of the branch ditch body 61 through an inspection ladder 65. The inspection ports 63 on both sides of the fire-fighting water storage tank 66 serve as daily maintenance passages, fire-fighting water intake passages, and passages for transporting sediment intercepted by the sedimentation baffle 62.

[0032] The main body of the branch ditch 61 is connected to the longitudinal drainage ditch A7 in tunnel A1 and the longitudinal drainage ditch B10 in tunnel B2 through the side ditch connecting well 8.

[0033] The side ditch connecting well 8 includes a side ditch excavated water collection channel 81, a large particle filter baffle 82, and a connecting hole 83. The side ditch excavated water collection channel 81 is located at the bottom of the longitudinal drainage ditch A7 or the longitudinal drainage ditch B10. The large particle filter baffle 82 is located at the top of the side ditch excavated water collection channel 81. The connecting hole 83 is located on the lower side of the side ditch excavated water collection channel 81, connecting the bottom of the side ditch excavated water collection channel 81 to the top of the transverse drainage branch ditch 6. The side ditch excavated water collection channel 81 is used to collect water from the longitudinal drainage ditch A7 or the longitudinal drainage ditch B10. The connecting hole 83 is used to introduce water from the side ditch excavated water collection channel 81 into the transverse drainage branch ditch 6. The large particle filter baffle 82 is used to intercept large-volume debris in the water flow, preventing the side ditch connecting well 8 from becoming clogged.

[0034] The drainage trough 81 of the side ditch has a shape and size that gradually decreases from top to bottom, and the large particle filter baffle 82 adopts a rainwater grate.

[0035] Structural reinforcing beams 9 are provided at the intersections of the transverse drainage branch 6 with the lining structures of tunnels A1 and B2. The structural reinforcing beams 9 are made of reinforced concrete and ensure the structural reliability of the intersections of the transverse drainage branch 6 with the lining structures of tunnels A1 and B2.

Claims

1. A structure for an in-tunnel fire-fighting water storage tank based on a tunnel drainage system, characterized in that: The tunnel includes tunnel A (1) and tunnel B (2). Tunnel B (2) is connected to tunnel A (1) through several transverse passages (3). Each of the transverse passages (3) has a transverse drainage branch ditch (6) on its lower side. The transverse drainage branch ditch (6) includes a branch ditch body (61). One end of the branch ditch body (61) extends to the bottom of tunnel A (1) and is connected to the central circular pipe ditch A (4) and / or the longitudinal drainage side ditch A (7) set in tunnel A (1). The other end of the branch ditch body (61) extends to the bottom of tunnel B (2) and is connected to the central circular pipe ditch B (5) and / or the longitudinal drainage side ditch B (10) set in tunnel B (2). A fire-fighting water storage tank (11) is provided in the middle of the bottom plate of the branch ditch body (61).

2. The tunnel fire-fighting water storage tank structure based on the tunnel drainage system as described in claim 1, characterized in that: The depth of the fire-fighting water storage tank (11) is less than 1.5m.

3. The structure of the in-tunnel fire-fighting water storage tank based on the tunnel drainage system as described in claim 1, characterized in that: The longitudinal slope of the bottom plate of the branch ditch body (61) on both sides of the fire water storage tank (11) is that the end closer to the fire water storage tank (11) is lower than the other end.

4. The tunnel fire-fighting water storage tank structure based on the tunnel drainage system as described in claim 3, characterized in that: The bottom plate of the branch ditch body (61) on both sides of the fire water storage tank (11) is provided with sand-collecting blocks (62).

5. The structure of the in-tunnel fire-fighting water storage tank based on the tunnel drainage system as described in claim 1, characterized in that: The top of the branch ditch body (61) on both sides of the fire water storage tank (11) is provided with an inspection port (63) that communicates with the cross passage (3). An inspection cover plate (64) is installed at the inspection port (63), and the inspection port (63) is connected to the bottom plate of the branch ditch body (61) through an inspection ladder (65).

6. The structure of the in-tunnel fire-fighting water storage tank based on the tunnel drainage system as described in claim 1, characterized in that: The main body of the branch ditch (61) is connected to the longitudinal drainage ditch A (7) in tunnel A (1) and the longitudinal drainage ditch B (10) in tunnel B (2) through the side ditch connecting well (8).

7. The tunnel fire-fighting water storage tank structure based on the tunnel drainage system as described in claim 6, characterized in that: The side ditch connection well (8) includes a side ditch excavation water collection channel (81), a large particle filter baffle (82), and a connection hole (83). The side ditch excavation water collection channel (81) is located at the bottom of the longitudinal drainage side ditch A (7) or the longitudinal drainage side ditch B (10). The large particle filter baffle (82) is located at the top of the side ditch excavation water collection channel (81). The connection hole (83) is located on the lower side of the side ditch excavation water collection channel (81) and connects the bottom of the side ditch excavation water collection channel (81) with the top of the transverse drainage branch ditch (6).

8. The structure of the in-tunnel fire-fighting water storage tank based on the tunnel drainage system as described in claim 7, characterized in that: The drainage trough (81) of the side ditch is a structure whose shape and size gradually decrease from top to bottom, and the large particle filter baffle (82) adopts a rainwater grate.

9. The structure of the in-tunnel fire-fighting water storage tank based on the tunnel drainage system as described in claim 1, characterized in that: Structural reinforcing beams (9) are provided at the intersections of the transverse drainage branch (6) with the lining structures of tunnel A (1) and tunnel B (2).

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