Subway tunnel typhoon and flood prevention structure

Abstract

The metro tunnel typhoon-preventing and flood-preventing structure comprises a door opening formed in a flood-preventing wall concrete structure, the outer side of the door opening is provided with an embedded reinforcing mesh and extending reinforcing steel bars, a flood-preventing door structure is arranged at the position of the door opening, the flood-preventing door structure comprises an embedded frame structure and a detachable water retaining door, and the embedded frame structure is connected with the flood-preventing wall concrete structure. The embedded frame structure is further provided with a plurality of embedded pressing hooks, the embedded pressing hooks are provided with U-shaped grooves and further provided with a plurality of pressing rods, the two ends of the pressing rods are clamped into the U-shaped grooves, the centers of the pressing rods press the water retaining door, and the problem of typhoon and flood prevention of the subway tunnel is solved.

Description

Technical Field

[0001] The utility model relates to the field of subway tunnels, in particular to a typhoon and flood prevention structure for subway tunnels. Background Art

[0002] The terrain of underground tunnels is low-lying, especially at the entrances and exits of the tunnels, which are at the lowest part of the structure and are prone to water accumulation and confluence. In case of heavy rainfall, it is easy to cause water backflow accidents in the tunnels, and in severe cases, it may even cause casualties, structural deformation, tunnel collapse and other accidents.

[0003] Traditional tunnel flood prevention mainly uses water stop boards, sandbag flood prevention walls, etc. for blocking. Stacking sandbags is time-consuming and laborious and it is difficult to play a role in time. The water stop board can only intercept water at a certain height and has no obvious effect when the water volume is large. Content of the Utility Model

[0004] The utility model provides a typhoon and flood prevention structure for subway tunnels, which solves the problem of typhoon and flood prevention for subway tunnels.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a typhoon and flood prevention structure for subway tunnels, including a door opening provided on the concrete structure of the flood prevention wall. An embedded steel bar mesh and extending steel bars are provided outside the door opening. A flood prevention door structure is provided at the door opening. The flood prevention door structure includes an embedded frame structure and a detachable water stop door. The embedded frame structure is connected to the concrete structure of the flood prevention wall. A plurality of embedded hooks are further provided on the embedded frame structure. The embedded hooks are provided with U-shaped grooves. A plurality of pressing rods are further provided. Both ends of the pressing rods are clamped into the U-shaped grooves, and the middle of the pressing rods presses the water stop door.

[0006] In a preferred solution, a plurality of second threaded holes are provided on the embedded frame structure, and embedded bolts are further provided. The embedded bolts are threadedly connected to the second threaded holes and pass through the second threaded holes to be embedded in the concrete structure of the flood prevention wall.

[0007] In a preferred solution, a plurality of positioning grooves are provided on the embedded frame structure. One side of the U-shaped groove abuts against the positioning grooves. First threaded holes are provided in the positioning grooves. Fixing bolts are further provided on the U-shaped groove. The fixing bolts are threadedly connected to the third threaded holes. An ear plate is provided at one end of the embedded hook. A third threaded hole is provided on the ear plate. A stud is provided in the third threaded hole, and the stud is embedded in the concrete structure of the flood prevention wall.

[0008] In a preferred solution, a V-shaped groove is provided on one side of the pressing rod, and a turning handle is further provided. A ball head ejector rod is provided at one end of the turning handle. The ball head ejector rod is threadedly connected to the side wall of the U-shaped groove and passes through the side wall to abut against the V-shaped groove of the pressing rod.

[0009] In a preferred solution, the water stop door includes a frame. A water stop panel is provided on one side of the frame. A plurality of reinforcing ribs connected to the water stop panel are further provided inside the frame.

[0010] In a preferred embodiment, the embedded frame structure is provided with a first sealing groove and a second sealing groove. A first sealing gasket with an L-shaped cross-section is arranged in the first sealing groove, and a second sealing gasket is arranged in the second sealing groove. A pressing frame is provided at the other end of the frame, and the pressing frame presses the first sealing gasket and the second sealing gasket.

[0011] In a preferred embodiment, a pressing strip with a slope structure is further arranged on the outer side of the water retaining door. The first sealing gasket is provided with a chamfered groove, and the slope structure of the pressing strip presses the chamfered groove.

[0012] The beneficial effects of the present utility model are as follows: When pouring the concrete structure of the flood control wall at the tunnel portal, a door opening is reserved, and the flood control door structure is installed to improve the typhoon and flood prevention ability; when pouring the flood control wall, the door frame structure is embedded to improve the support strength; the water retaining door is fixed by a pressing rod, and multiple sealing structures are arranged on the contact surface to improve the anti-seepage ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the internal door opening reinforcement structure of the flood control wall concrete structure.

[0015] Figure 2 It is a schematic diagram of the position of the flood control door.

[0016] Figure 3 It is a schematic diagram of the flood control door and the embedded steel bar mesh.

[0017] Figure 4 It is a schematic diagram of the water-facing side of the flood control door structure.

[0018] Figure 5 It is a schematic diagram of the back side of the flood control door structure.

[0019] Figure 6 It is a schematic diagram of the embedded frame structure.

[0020] Figure 7 It is a schematic diagram of the water retaining door seal.

[0021] Figure 8 It is a schematic diagram of the pressing rod V-shaped groove being tightened.

[0022] Figure 9 It is a structural diagram of the embedded pressing hook.

[0023] Figure 10 It is a back view of the embedded frame structure.

[0024] Figure 11 It is a back view of the water retaining door.

[0025] Figure 12 It is a schematic diagram of the sealing gasket installation.

[0026] Figure 13 It is a schematic diagram of the sealing groove arrangement.

[0027] Figure 14 It is a schematic diagram of the flood control gate with hinged lugs structure.

[0028] In the figure: flood control wall concrete structure 1; embedded steel mesh 2; extended steel bars 3; door opening 4; tunnel portal ring beam 5; flood control gate structure 6; embedded frame structure 7; embedded bolts 701; positioning groove 702; first threaded hole 703; second threaded hole 704; door hole 705; first sealing groove 706; second sealing groove 707; water retaining door 8; frame 801; pressing frame 802; water retaining panel 803; reinforcing ribs 804; embedded pressing hooks 9; U-shaped groove 901; ear plates 902; third threaded hole 903; stud 904; fixing bolts 905; turning handle 906; spherical head push rod 907; pressing rod 10; V-shaped groove 1001; first sealing gasket 11; chamfered groove 1101; second sealing gasket 12; pressing strip 13; hinged lug 14. Detailed implementation manners

[0029] Embodiment 1:

[0030] As Figures 1-14 shown in, a typhoon and flood prevention structure for a subway tunnel includes a door opening 4 provided on a flood control wall concrete structure 1. An embedded steel mesh 2 and extended steel bars 3 are provided outside the door opening 4. A flood control gate structure 6 is provided at the door opening 4. The flood control gate structure 6 includes an embedded frame structure 7 and a detachable water retaining door 8. The embedded frame structure 7 is connected to the flood control wall concrete structure 1. A plurality of embedded pressing hooks 9 are further provided on the embedded frame structure 7. The embedded pressing hooks 9 are provided with U-shaped grooves 901. A plurality of pressing rods 10 are further provided. Both ends of the pressing rods 10 are clamped into the U-shaped grooves 901, and the middle of the pressing rods 10 presses the water retaining door 8.

[0031] The flood control wall concrete structure 1 is a vertical wall structure and is made of reinforced concrete. The flood control gate structure 6 is arranged at the lower side close to the tunnel portal ring beam 5. When pouring the flood control wall concrete structure 1, the embedded frame structure 7 is pre-embedded into the concrete.

[0032] Usually, the water retaining door 8 can be removed and placed at a fixed position for standby. When the flood season comes, the water retaining door 8 can be taken down and installed on the embedded frame structure 7, and the water retaining door 8 is pressed tightly on the embedded frame structure 7 by installing the pressing rods 10.

[0033] In a preferred solution, a plurality of second threaded holes 704 are provided on the embedded frame structure 7, and embedded bolts 701 are further provided. The embedded bolts 701 are threadedly connected to the second threaded holes 704 and pass through the second threaded holes 704 to be embedded into the flood control wall concrete structure 1.

[0034] In a preferred embodiment, the embedded frame structure 7 is provided with a plurality of positioning grooves 702. One side of the U-shaped groove 901 abuts against the positioning groove 702. The positioning groove 702 is provided with a first threaded hole 703. The U-shaped groove 901 is further provided with a fixing bolt 905. The fixing bolt 905 is threadedly connected to the third threaded hole 903. One end of the embedded hook 9 is provided with an ear plate 902. The ear plate 902 is provided with a third threaded hole 903. A stud 904 is arranged in the third threaded hole 903. The stud 904 is embedded in the flood control wall concrete structure 1.

[0035] A door hole 705 is reserved in the center of the embedded frame structure 7. After the embedded hook 9 is pre-connected to the embedded frame structure 7 through the fixing bolt 905, the stud 904 is inserted into the third threaded hole 903, and the embedded bolt 701 is inserted into the second threaded hole 704. Subsequently, the whole is tied and fixed to the embedded steel bar mesh 2, and then the flood control wall concrete structure 1 is poured. The surface of the embedded frame structure 7 is flush with the surface of the flood control wall concrete structure 1.

[0036] The embedded bolt 701, the stud 904, their threaded structures, and the ear plate 902 are embedded in the flood control wall concrete structure 1 and fixed integrally with the embedded steel bar mesh 2, greatly improving the strength of the flood control door structure 6.

[0037] In a preferred embodiment, one side of the pressure bar 10 is provided with a V-shaped groove 1001, and a rotating handle 906 is further provided. One end of the rotating handle 906 is provided with a spherical head push rod 907. The spherical head push rod 907 is threadedly connected to the side wall of the U-shaped groove 901 and passes through the side wall to abut against the V-shaped groove 1001 of the pressure bar 10.

[0038] Press the pressure bar 10 against the surface of the water retaining door 8, insert both ends of the pressure bar 10 into the U-shaped groove 901, rotate the rotating handle 906, and press the spherical head push rod 907 against the V-shaped groove 1001 of the pressure bar 10. Rotate the rotating handles 906 at both ends alternately until the pressure bar 10 is just pressed. Install other pressure bars 10 and operate in the same way. Each pressure bar 10 will not fall off on the spherical head push rod 907. Rotate the rotating handles 906 alternately, and each pressure bar 10 synchronously presses each corner of the water retaining door 8.

[0039] In a preferred embodiment, the water retaining door 8 includes a frame 801. One side of the frame 801 is provided with a water retaining panel 803. The frame 801 is further provided with a plurality of reinforcing ribs 804 connected to the water retaining panel 803.

[0040] The reinforcing ribs 804 divide the inside of the frame 801 into multiple areas, which can disperse the pressure on the water retaining panel 803 and prevent the water retaining panel 803 from being concave due to water pressure.

[0041] In a preferred embodiment, the embedded frame structure 7 is provided with a first sealing groove 706 and a second sealing groove 707. A first sealing gasket 11 with an L-shaped cross-section is arranged in the first sealing groove 706, and a second sealing gasket 12 is arranged in the second sealing groove 707. At the other end of the frame 801, there is a pressing frame 802 which presses the first sealing gasket 11 and the second sealing gasket 12.

[0042] The first sealing gasket 11 and the second sealing gasket 12 can be made of rubber material. When the pressing rod 10 presses the four corners of the water retaining door 8, the rubber is extruded to form a seal. The first sealing gasket 11 is on the outer circle, and the second sealing gasket 12 is on the inner circle. A water-swellable material can be added to the second sealing gasket 12. If the first sealing gasket 11 leaks water locally, after contacting the second sealing gasket 12, the second sealing gasket 12 expands to enhance the sealing performance.

[0043] In a preferred embodiment, a pressing strip 13 with a slope structure is further arranged on the outer side of the water retaining door 8. The first sealing gasket 11 is provided with a chamfered groove 1101, and the slope structure of the pressing strip 13 presses the chamfered groove 1101.

[0044] The use of the groove structure can not only play a guiding role for the water retaining door 8, but also the tighter the slope contact is when the pressing force is greater, and the better the sealing performance is.

[0045] Such as Figure 14 , for a large water retaining door 8, hinge lugs 14 can be welded at the edge positions of the water retaining door 8 and the embedded frame structure 7. A pin is inserted into the lug hole for hinging. It can be opened usually and closed during the flood season. Or the pin can be pulled out to remove the water retaining door 8.

[0046] Embodiment 2:

[0047] A quickly installable and removable anti-typhoon and flood control structure for subway tunnels. It is characterized by including the following steps: mainly making a reinforced concrete wall closely along the tunnel entrance with a flood control wall and a flood control door, covering the entire entrance, and leaving a door opening in the center. The door opening is pre-embedded with a door frame for installing the flood control door. The flood control door is made of 8-mm steel plate and 100*100*6-mm square tube, and two flood control door pressing devices are set. An L-shaped sealing groove is set on the door frame. When heavy rainfall occurs, a water-swellable waterstop rubber is pasted on the sealing groove, and the flood control door is quickly closed. Then, the pressing device is used to lock the flood control door, and finally, the door gap is sealed with sealant to achieve a good flood control and waterproof effect.

[0048] Including the following steps:

[0049] S1 Evacuate all personnel in the tunnel;

[0050] S2 Paste a water-swellable waterstop rubber on the sealing groove;

[0051] S3 Close the flood control door;

[0052] S4: Lock the flood control door with a pressing device;

[0053] S5: Seal the door gap with sealant.

[0054] The above embodiments are only the preferred technical solutions of the present utility model and should not be regarded as limitations to the present utility model. The protection scope of the present utility model shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present utility model.

Claims

1. A subway tunnel typhoon and flood prevention structure, characterized by: The invention comprises a door opening (4) arranged on a flood control wall concrete structure (1), wherein an embedded steel mesh (2) and an extended steel bar (3) are arranged outside the door opening (4), and a flood control door structure (6) is arranged at the door opening (4), wherein the flood control door structure (6) comprises an embedded frame structure (7) and a detachable water retaining door (8), wherein the embedded frame structure (7) is connected to the flood control wall concrete structure (1), and the embedded frame structure (7) is further provided with a plurality of embedded pressure hooks (9), wherein the embedded pressure hooks (9) are provided with U-shaped grooves (901), and a plurality of pressure rods (10), wherein both ends of the pressure rods (10) are inserted into the U-shaped grooves (901), and the center of the pressure rods (10) presses the water retaining door (8).

2. The subway tunnel typhoon and flood prevention structure according to claim 1 is characterized by: The embedded frame structure (7) is provided with a plurality of second threaded holes (704) and also provided with embedded bolts (701); the embedded bolts (701) are threadedly connected to the second threaded holes (704) and pass through the second threaded holes (704) to be embedded in the flood control wall concrete structure (1).

3. The subway tunnel typhoon and flood prevention structure according to claim 1 is characterized by: The embedded frame structure (7) is provided with a plurality of positioning grooves (702), one side of the U-shaped groove (901) is abutted against the positioning groove (702), a first threaded hole (703) is provided in the positioning groove (702), a fixing bolt (905) is also provided on the U-shaped groove (901), the fixing bolt (905) is threadedly connected to the third threaded hole (903), an ear plate (902) is provided at one end of the embedded pressure hook (9), a third threaded hole (903) is provided on the ear plate (902), a stud (904) is provided in the third threaded hole (903), and the stud (904) is embedded in the flood control wall concrete structure (1).

4. The subway tunnel typhoon and flood prevention structure according to claim 3 is characterized by: A V-shaped groove (1001) is provided on one side of the pressure rod (10), and a rotating handle (906) is also provided. A ball head push rod (907) is provided on one end of the rotating handle (906). The ball head push rod (907) is threadedly connected to the side wall of the U-shaped groove (901) and passes through the side wall to abut against the V-shaped groove (1001) of the pressure rod (10).

5. The subway tunnel typhoon and flood prevention structure according to claim 1 is characterized by: The water retaining door (8) comprises a frame (801), a water retaining panel (803) is provided on one side of the frame (801), and a plurality of reinforcing ribs (804) connected to the water retaining panel (803) are also provided inside the frame (801).

6. The subway tunnel typhoon and flood prevention structure according to claim 5 is characterized by: The embedded frame structure (7) is provided with a first sealing groove (706) and a second sealing groove (707); a first sealing gasket (11) having an L-shaped cross-section is provided in the first sealing groove (706); a second sealing gasket (12) is provided in the second sealing groove (707); a pressing frame (802) is provided at the other end of the frame (801); the pressing frame (802) presses the first sealing gasket (11) and the second sealing gasket (12).

7. The subway tunnel typhoon and flood prevention structure according to claim 6 is characterized by: A pressure strip (13) with a slope structure is also provided on the outside of the water retaining door (8), and the first sealing gasket (11) is provided with a chamfered groove (1101), and the slope structure of the pressure strip (13) presses the chamfered groove (1101).

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