CN214145572U - Tunnel water burst protection device with jacking device - Google Patents

Abstract

The utility model relates to a tunnel protection device that gushes water with push up tight device, including installing in the tight device in fender water spare and the top in tunnel lining, be equipped with the boss in the one side of fender water spare, the fender water spare be equipped with one row of at least hole on the surface, push up tight device and act on the interior anchor ring of boss and be used for making the outer anchor ring of fender water spare and the interior surface butt of tunnel lining. The utility model discloses a be equipped with the tight device in top in manger plate boss, the tight device in top acts on the interior anchor ring of boss and is used for making the outer anchor ring of manger plate and the internal surface butt of tunnel primary lining, has avoided the clearance that exists between tunnel gushing water protector and the internal surface of tunnel primary lining, can no longer have groundwater to overflow from the clearance to come out, has strengthened the security and the reliability when this device uses; the quick plugging to the working face that gushes water is realized, the pressure of working face is increased to can supply the personnel of speedily carrying out rescue work to measure the water pressure that gushes water working face simultaneously, guarantee personnel and mechanical equipment's safety for speedily carrying out rescue work progress.

Description

Tunnel water burst protection device with jacking device

Technical Field

The utility model relates to a technical field of the prevention and cure technique is shone in the tunnel, concretely relates to tunnel protection device that shoves with tight device in top.

Background

The tunnel water inrush is a phenomenon that the water stored in the underground water body is instantaneously released in a fluid high-speed migration mode due to the fact that the surrounding rock aquifer structure is damaged by tunneling operation of the tunnel, and the dynamic equilibrium state between hydrodynamic conditions and the surrounding rock is changed sharply. The principle of tunnel water burst treatment is that prevention, drainage, interception and blockage are combined, and meanwhile, under the condition that the influence on the surrounding environment is considered, the treatment concept of 'drainage and blockage combination and blockage-based' is adopted. For tunnels traversing water-rich formations, the risk of water gushes occurring during construction is extremely high. Once water burst occurs, the underground water is urgently needed to be quickly plugged, personnel and machinery are evacuated, and emergency rescue is carried out. During emergency, firstly, plugging is carried out on a water burst working surface, and then an anchor rod is applied and grouting is carried out for reinforcement.

Most means of tunnel gushing water at present speedily carry out the shutoff with the sand bag to the working face, increase the pressure of working face, then carry out the slip casting and consolidate, this process is comparatively consuming time, and this in-process because the sand bag has stopped up the working face completely for the personnel of speedily carrying out rescue work can't collect and the analysis to the source, the pressure etc. of gushing water, influence accident analysis and later stage construction and impel. In addition, in the prior art, a small amount of tunnel water burst prevention devices are in contact with the inner surface of the tunnel lining, so that gaps often exist, and underground water can overflow from the gaps to cause unnecessary danger. Therefore, improvement is desired.

SUMMERY OF THE UTILITY MODEL

The utility model provides a tunnel protection device that surges has solved among the prior art "a small amount of tunnel surge protection device and tunnel and has contacted between the internal surface of lining just often to have the clearance, have groundwater to come out and cause unnecessary dangerous" from the clearance overflow.

The technical scheme of the utility model as follows:

the tunnel water burst protection device comprises a water blocking piece and a jacking device, wherein the water blocking piece and the jacking device are installed in a primary lining of a tunnel, a boss is arranged on one surface of the water blocking piece, at least one water drainage hole is formed in the surface of the water blocking piece, and the jacking device acts on the inner annular surface of the boss and is used for enabling the outer annular surface of the water blocking piece to be abutted against the inner surface of the primary lining of the tunnel.

Furthermore, a plurality of protruding pieces used for being tightly abutted with the inner surface of the primary tunnel lining are arranged on the outer ring surface of the water retaining piece.

Further, the protruding piece is a semicircular protrusion.

Furthermore, the jacking device comprises a plurality of pressure rods and an oil jack, the oil jack is provided with a plurality of output ends, each output end is fixedly connected with one end of each pressure rod, and the other end of each pressure rod is abutted against the inner annular surface of the boss.

Furthermore, the number of the pressure levers is 4, and the angle between each two pressure levers is 90 degrees.

Further, the water blocking piece is made of a scalable rigid material.

Furthermore, a valve for opening and closing the drain hole is arranged on the water blocking piece.

The technical scheme of the utility model beneficial effect is: the utility model provides a tunnel protection device that surges has following advantage:

1. through be equipped with in the manger plate boss and push up tight device, push up tight device and act on the interior anchor ring of boss and be used for making the outer anchor ring of manger plate and the inner surface butt of tunnel lining first, avoided the tunnel to gush the clearance that exists between the inner surface of water protector and tunnel lining first, also can not have groundwater to spill out from the clearance, security and reliability when having strengthened the device and using.

2. Aiming at the defects of the existing tunnel water burst protection technology, the utility model provides a tunnel water burst protection device, which realizes the quick plugging of the water burst working surface, increases the pressure of the working surface, and simultaneously can be used for emergency personnel to measure the water pressure of the water burst working surface, thereby ensuring the safety of personnel and mechanical equipment and accelerating the emergency progress;

3. its simple structure, design benefit and simple manufacture, through with protector design as an organic whole shaping and install the fender in the tunnel just lining, the manger plate is used for carrying out the shutoff to the inner ring face of tunnel just lining, and be equipped with at least one wash port on the manger plate, the wash port is used for gushing water with the tunnel promptly groundwater slowly outwards discharges, effective and simple to operate of use, the later stage of being convenient for is to the source of gushing water, pressure etc. is collected and is analyzed, can not influence accident analysis and later stage construction and impels, the problem of adopting the sand bag to carry out this kind of consuming time power and unsafe mode of shutoff to the working face among the prior art has been solved.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic front view of a tunnel water burst protection device provided by the present invention;

FIG. 2 is a sectional view taken along A-A in embodiment 2 of the tunnel water burst protection device provided in FIG. 1;

FIG. 3 is a sectional view taken along A-A in the embodiment 1 of the tunnel water burst protection device provided in FIG. 1;

FIG. 4 is a schematic diagram illustrating the operation of opening and closing the drain holes in the tunnel water burst prevention device of FIG. 1 according to embodiment 1;

fig. 5 is a working principle diagram of opening and closing of a grouting hole in the embodiment 1 of the tunnel water burst protection device provided in fig. 1.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the annular steel ring can be scaled; 2. a pressure lever; 3. an oil jack; 4. a shield; 5. a tooth-shaped member; 6. a drain hole; 7. grouting holes; 8. an outer water stop band; 9. a shield water stop, 10, a valve; 11. a pore pressure sensor; 12. a rotating shaft; 13. a gate; 14. a gate fastener; 15. primary lining of the tunnel; 16. a water blocking member; 161. a boss; 17. a semicircular bulge.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-5, the examples given are intended to illustrate the present invention and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in fig. 1 and fig. 3 to 5, embodiment 1 provides a tunnel water burst protection device, which is used for blocking a tunnel water burst working surface, and the tunnel water burst protection device includes a water baffle and a ring-shaped member installed in a tunnel primary lining 15, the water baffle is fixed on an inner ring surface of the ring-shaped member and blocks the inner ring surface of the ring-shaped member, and the water baffle is provided with at least one water discharge hole 6.

The embodiment provides a tunnel protection device that gushes water, has following advantage: according to the technical problems of the existing tunnel water burst plugging, the tunnel water burst accident in the tunnel construction process is quickly and effectively plugged, the effect after plugging is evaluated, the information such as underground water burst pressure and the like is collected, the accident reason is analyzed, and the safety of constructors and machinery is guaranteed;

its simple structure, design benefit, through with protector design for the breakwater and install the loop forming element in tunnel primary lining 15, the breakwater is used for carrying out the shutoff to the interior anchor ring face of loop forming element, and be equipped with at least one wash port 6 on the breakwater, wash port 6 is used for gushing water in the tunnel promptly groundwater slowly outwards discharges, it is effective and simple to operate to use, the later stage of being convenient for is to the source of gushing water, pressure etc. is collected and the analysis, can not influence accident analysis and later stage construction and impels, the problem of adopting the sand bag to carry out this kind of consuming time power and unsafe mode of shutoff to the working face among the prior art has been solved.

Preferably, as shown in fig. 3, the water guard plate may be embedded and fixed on the inner annular surface of the ring member for the stability and symmetry of the overall structure.

Preferably, in order to ensure that the outer annular surface of the annular element abuts against the inner surface of the tunnel liner 15, the tunnel flood protection device further comprises a jacking device acting on the inner annular surface of the annular element and serving to abut against the inner surface of the tunnel liner 15. Wherein two ends of the jacking device are respectively abutted with the inner annular surface of the annular piece.

It can be understood that, as shown in fig. 3, the tightening device includes a plurality of pressure rods 2 and an oil jack 3, the oil jack 3 has a plurality of output ends, each of the output ends is fixedly connected with one end of each of the pressure rods 2, and the other end of each of the pressure rods 2 abuts against the inner annular surface of the ring-shaped element.

The pressing rods 2 of the device are four in total, the pressing rods are pushed by the oil jack 3 to apply pressure to the inner wall of the steel ring 1, the set angle is in the horizontal direction and the vertical direction, the pressing rods can rotate for a certain angle according to needs, and the angle between the pressing rods 2 can be adjusted according to needs.

Further, in order to facilitate the disassembly and assembly of parts and the realization of the abutting between the inner surfaces of the ring-shaped member and the tunnel primary lining 15, as shown in fig. 1, the ring-shaped member comprises 2 semi-band-type arc-shaped members, wherein two ends of one of the semi-band-type arc-shaped members are respectively inserted and fixed at two ends of the other semi-band-type arc-shaped member to form a ring.

Further, the annular part is made of scalable rigid material. Due to the flexible elasticity of the rigid material, the installation is facilitated and a close contact between the outer surface of the ring-shaped element and the primary tunnel lining 15 is achieved.

Of course, as shown in fig. 1, the ring may be designed as a scalable ring steel ring 1. In addition to this, the annular element can also be designed as a steel alloy material and any other rigid material.

Further, as shown in fig. 1 and 3, a plurality of protruding members 5 for closely contacting the inner surface of the primary tunnel lining 15 are provided on the outer annular surface of the ring-shaped member, thereby further achieving the fastening between the outer annular surface of the ring-shaped member and the inner surface of the primary tunnel lining 15.

Preferably, as shown in fig. 1 and 3, the protrusion 5 may be designed as a tooth-shaped member. Besides, the protruding member 5 may have a trapezoidal shape, a semi-spherical shape, or any other shape.

Preferably, as shown in fig. 3, a valve 10 for opening and closing the water discharge hole 6 is provided at the water guard. Before installing the shield 4, namely the water baffle, the valve on the water drainage hole 6 is closed to prevent water from flowing, so that the use is safer.

Further, as shown in fig. 4, a pore pressure sensor 11 is disposed at the drainage hole 6, and the pore pressure sensor 11 is electrically connected to a display device through a controller.

As shown in fig. 1, in order to facilitate uniform drainage, the number of the drainage holes 6 is multiple, and the drainage holes 6 are uniformly distributed on the splash plate.

As shown in fig. 1 and 3, in order to enhance the stability of the whole structure, the number of the pressing rods 2 can be designed to be 4, and 90 degrees are formed between the pressing rods 2.

Preferably, in another embodiment, the tightening device includes a plurality of pressing rods 2 and a plurality of hydraulic jacks 3, the plurality of hydraulic jacks 3 are fixedly mounted into a whole, an output end of each hydraulic jack 3 is fixedly connected with one end of each pressing rod 2, and the other end of each pressing rod 2 abuts against the inner annular surface of the annular member.

Preferably, as shown in fig. 3, at least one grouting hole 7 is further formed in the water guard, and a check valve is arranged on the water guard at the grouting hole 7. The one-way valve only allows slurry to pass through the slurry feeding hole 7 from the outside and be fed into the water gushing working surface in the tunnel, and underground water cannot be conducted when entering the one-way valve, so that the underground water is prevented from gushing out from the grouting hole 7.

Preferably, as shown in fig. 1, in order to facilitate uniform grouting, the number of the grouting holes 7 is multiple, and the multiple grouting holes 7 are uniformly distributed on the water guard.

As shown in fig. 5, the check valve includes gate 13 and gate fastener 14, gate fastener 14 is fixed in the grout hole 7, the one end of gate 13 with the internal surface rotation of grout hole 7 is connected, the other end of gate 13 with gate fastener 14 offsets towards the one side at grout hole 7 inner, and when needs slip casting, the thick liquid gets into and promotes gate 13 internal rotation from the outer end of grout hole 7 and gets into with the confession thick liquid, waits to push gate 13 external rotation by groundwater pressure after the slip casting finishes to touch gate fastener 14 and stop.

This embodiment provides a check valve structure with simple structure and convenient use, which facilitates grouting and prevents groundwater from flowing out of the grouting holes 7.

Preferably, the one-way valve further comprises a torsion spring, and the gate 13 is rotatably connected with the inner surface of the grouting hole 7 through the torsion spring and is used for enabling the other end of the gate 13 to abut against one surface of the gate fastener 14 facing the inner end of the grouting hole 7.

Through being equipped with the torsional spring between gate 13 and injected hole 7, can set for certain pretightning force in advance at gate 13 and gate fastener 14 towards the one side of injected hole 7 inner to further prevent groundwater from the seepage in injected hole 7.

Preferably, as shown in fig. 5, the check valve further includes a rotating shaft 12, and one end of the gate 13 is rotatably connected to the inner surface of the injection hole 7 through the rotating shaft 12.

If grouting is needed, the grouting pipe is connected with the grouting hole 7, the gate 13 is pushed by the pressure of the grout to rotate inwards around the rotating shaft 12 so as to allow the grout to enter, after grouting is finished, the gate 13 is pushed by the pressure of the underground water and then the rotating shaft 12 rotates outwards and touches the gate fastener to stop, and the underground water is prevented from being discharged from the grouting hole 7.

Preferably, as shown in fig. 1 and 3, the water deflector is made of steel material of the shield 4. Namely the water baffle is a shield 4. The steel material may be 304 stainless steel.

It can be understood that the shield 4 is assembled by 4 right-angle arc sections, the shield is arranged between the pressure rod 3 and the working surface, an annular L-shaped water stop (namely, a shield water stop 9) is arranged between the shield 4 and the scalable annular steel ring 1, and the shield water stop 9 is pressed by the shield 4 to prevent groundwater from flowing into the rear part of the shield 4.

Furthermore, in order to avoid being washed down by the underground water so as to prolong the service life of the one-way valve, the one-way valve is arranged on one surface of the water baffle, which is back to the underground water.

Further, in order to prevent the valve 10 from being washed down by the groundwater, the valve 10 is disposed on a surface of the water baffle opposite to the groundwater.

Preferably, in order to enhance the sealing property between the outer ring of the ring-shaped piece and the primary tunnel lining 15, an outer ring water stop 8 for abutting against the primary tunnel lining 15 is arranged on the outer ring of the ring-shaped piece.

Preferably, in order to enhance the sealing performance between the inner surface of the ring-shaped member and the outer surface of the water baffle, a shield water stop 9 is arranged between the inner surface of the ring-shaped member and the outer surface of the water baffle.

As shown in fig. 4, the valve 10 is provided with a fastening bolt for opening and closing the valve port.

The utility model also provides a tunnel protection device's installation method that gushes water, including following step: and fixedly installing a water baffle on the inner ring surface of the ring-shaped piece, and installing the ring-shaped piece in the primary tunnel lining 15, wherein the water baffle is provided with at least one water drainage hole 6.

The installation method can realize the installation of the tunnel water burst protection device only by two steps, is very simple and convenient, and is provided with at least one water drainage hole 6 on the water baffle plate, the water drainage hole 6 is used for slowly discharging the tunnel water burst, namely underground water outwards, the use is effective and convenient, the collection and analysis of the source, pressure and the like of the water burst in the later period are convenient, the accident analysis and the later-period construction propulsion cannot be influenced, and the time-consuming, labor-consuming and unsafe mode of plugging the working surface by adopting a sand bag in the prior art is solved.

Further, in order to secure safety at the time of installation, the drain hole 6 is blocked before the splash plate is installed.

Further, a jacking device is arranged on the inner annular surface of the annular piece, so that the outer annular surface of the annular piece is abutted against the inner surface of the tunnel primary lining 15.

Furthermore, the water baffle is also provided with at least one grouting hole 7, and a one-way valve is arranged at the grouting hole 7 and on the water baffle.

Further, the one-way valve is arranged on one surface of the water baffle, which is back to the groundwater.

Further, a valve 10 for opening and closing the drain hole 6 is arranged on the water baffle, and the valve 10 is arranged on one surface of the water baffle, which is back to the underground water; the valve 10 is closed before the water deflector is installed.

As shown in fig. 1 and fig. 3-5, the specific working principle and the using method of the present invention are as follows: when in use, two segments of the scalable annular steel ring 1 are installed, the radius is adjusted to be tightly attached to the inner wall of a tunnel, the outer ring water stop belt 8 is attached to the primary tunnel lining 15 as shown in the attached drawing 2, then the four pressure rods 2 are connected with the oil jack 3, and one end of each pressure rod 2 is attached to the inside of the scalable annular steel ring 1;

installing a steel shield 4 in a space formed by 1/4 circles by the pressure lever 2, enabling the inner side of the steel shield 4 to be tightly attached to a shield water stop belt 9, and closing a valve 10 on a water outlet 6 before installing the steel shield 4 to prevent water inrush;

pushing the pressure rod 2 and the oil jack 3 towards the operation surface to enable the pressure rod and the oil jack 3 to be attached to the steel shield 4, then adjusting the oil jack 3 to enable the pressure rod 2 to push the scalable annular steel ring 1 to be closely attached to the tunnel primary lining 15, and enabling the tooth-shaped piece 5 to be inserted into the tunnel primary lining 15;

if drainage is needed, a valve 10 on the drainage outlet 6 is opened, and the pore pressure sensor 11 is measured and read when the underground water pressure needs to be monitored;

if grouting is needed, the grouting pipe is connected with the 7 grouting holes, the 13 gate is pushed by the pressure of the grout to rotate around the 12 rotating shaft in the axial direction so as to allow the grout to enter, after grouting is finished, the 13 gate is pushed by the pressure of the underground water to rotate outwards around the 12 rotating shaft and touch the 14 gate fastener to stop, and the underground water is prevented from being gushed out of the grouting holes.

It should be noted that the ring-shaped member can be designed as a scalable annular steel ring 1, the tunnel primary lining 15 is a tunnel excavation surface or a tunnel working surface in jargon, the water baffle can be designed as a shield 4, and the annular steel ring, the pressure bar and the shield can be disassembled, are convenient to carry and can be installed when needed.

Embodiment 1 provides a tunnel protection device that gushes water, has following advantage: its simple structure, design benefit, through with protector design for the breakwater and install the loop forming element in tunnel primary lining 15, the breakwater is used for carrying out the shutoff to the interior anchor ring face of loop forming element, and be equipped with at least one wash port 6 on the breakwater, wash port 6 is used for gushing water in the tunnel promptly groundwater slowly outwards discharges, it is effective and simple to operate to use, the later stage of being convenient for is to the source of gushing water, pressure etc. is collected and the analysis, can not influence accident analysis and later stage construction and impels, the problem of adopting the sand bag to carry out this kind of consuming time power and unsafe mode of shutoff to the working face among the prior art has been solved.

Compared with the prior art, the embodiment 1 also has the following advantages:

the device is detachable and convenient to carry, can be quickly assembled and can block a water burst working surface, so that safety of constructors and machinery is protected;

2 the device is provided with a pressure rod 2, can apply pressure to quickly fix the whole device on a primary support, and the pressure of the pressure rod 2 can be adjusted, the device is provided with a drain hole 6 for helping to drain underground water, a grouting hole 7 for facilitating grouting reinforcement, a monitoring hole for helping to monitor underground water pressure and analyzing accident causes;

3 this device is from waterstop with adjustable area all around, does benefit to the fixed of device and the shutoff of groundwater, has set up fixed shields 4 such as recess and buckle.

The utility model relates to a tunnel protection device that gushes water, the utility model discloses can scale annular steel ring, depression bar, hydraulic jack, a plurality of parts such as steel shield by the end and constitute. Through right the utility model discloses an installation and use can carry out quick effectual shutoff to the operation face that the tunnel gushed water. For administering the tunnel better and gush water, the utility model discloses provide the slip casting hole on the steel shield, can realize consolidating and preventing groundwater refluence to the slip casting of gushing the water operation face. Furthermore, the utility model discloses set up the wash port on the steel shield, the wash port is inside to be set up the pore pressure sensor, can real-time supervision groundwater pressure when carrying out the water conservancy diversion to groundwater, provides the powerful foundation for dangerous situation analysis and improvement.

Example 2

The tunnel water burst protection device with the abutting device is used for blocking a tunnel water burst working surface and comprises a water blocking piece 16 and an abutting device, wherein the water blocking piece 16 and the abutting device are installed in a tunnel primary lining 15, a boss 161 is arranged on one surface of the water blocking piece, at least one drainage hole 6 is arranged on the surface of the water blocking piece 16, and the abutting device acts on the inner annular surface of the boss 161 and is used for enabling the outer annular surface of the water blocking piece 16 to abut against the inner surface of the tunnel primary lining 15.

Embodiment 2 provides a tunnel protection device that gushes water, has following advantage:

1. by arranging the jacking device in the boss 161 of the water blocking piece 16, the jacking device acts on the inner ring surface of the boss 161 and is used for enabling the outer ring surface of the water blocking piece 16 to be abutted against the inner surface of the primary tunnel lining 15, so that a gap between the tunnel water burst protection device and the inner surface of the primary tunnel lining 15 is avoided, no underground water overflows from the gap, and the safety and reliability of the device in use are enhanced.

2. The above-mentioned defect to current tunnel protection technique of gushing water, the utility model provides a tunnel protection device of gushing water realizes increasing the pressure of working face to the quick shutoff of the working face of gushing water to can supply the personnel of speedily carrying out rescue work to measure the water pressure of the working face of gushing water simultaneously, guarantee personnel and mechanical equipment's safety for the progress of speedily carrying out rescue work.

3. Its simple structure, design benefit and simple manufacture, through with protector design as an organic whole shaping and install the manger plate 16 in the tunnel lining 15, manger plate 16 is used for carrying out the shutoff to the inner ring face of tunnel lining 15, and be equipped with at least one wash port 6 on manger plate 16, wash port 6 is used for gushing water in the tunnel promptly groundwater slowly outwards discharges, effective and simple to operate is used, be convenient for the later stage to the source of gushing water, pressure etc. collect and the analysis, can not influence accident analysis and later stage construction and impel, this kind of consuming time power and unsafe mode that adopts the sand bag to carry out the shutoff to the working face among the prior art has been solved.

Further, a plurality of protruding members for tightly abutting against the inner surface of the tunnel primary lining 15 are provided on the outer circumferential surface of the water blocking member 16.

Further, the protruding member is a semicircular protrusion 17.

Further, the jacking device comprises a plurality of pressure rods 2 and an oil jack 3, the oil jack 3 is provided with a plurality of output ends, each output end is fixedly connected with one end of each pressure rod 2, and the other end of each pressure rod 2 is abutted against the inner annular surface of the boss 161.

Furthermore, the number of the pressure levers 2 is 4, and the angle between each pressure lever 2 is 90 degrees.

Further, the water blocking member 16 is made of a scalable rigid material.

Further, the water blocking member 16 is provided with a valve 10 for opening and closing the water discharge hole 6.

It can be understood that the water stop 16 is formed by integrating, i.e. integrally molding, the water stop and the ring member in embodiment 1, which is advantageous in that the installation is simpler and the random disassembly is not bad.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the present invention can be smoothly implemented by those skilled in the art according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. The tunnel water burst protection device with the jacking device is used for plugging a tunnel water burst working surface and is characterized by comprising a water blocking piece (16) and the jacking device, wherein the water blocking piece (16) is installed in a tunnel primary lining (15), a boss (161) is arranged on one surface of the water blocking piece (16), at least one water drainage hole (6) is formed in the surface of the water blocking piece (16), and the jacking device acts on the inner ring surface of the boss (161) and is used for enabling the outer ring surface of the water blocking piece (16) to be abutted to the inner surface of the tunnel primary lining (15).

2. The device for protecting against tunnel gushing water according to claim 1, characterized in that the outer annular surface of the water-blocking member (16) is provided with a plurality of protruding members for tight abutment with the inner surface of the tunnel liner (15).

3. The device according to claim 2, characterized in that the protruding member is a semicircular protrusion (17).

4. The tunnel water burst protection device of claim 1, wherein the tightening device comprises a plurality of pressing rods (2) and an oil jack (3), the oil jack (3) has a plurality of output ends, each output end is fixedly connected with one end of each pressing rod (2), and the other end of each pressing rod (2) abuts against the inner annular surface of the boss (161).

5. The device for protecting the tunnel from water burst according to claim 4, wherein the number of the pressure rods (2) is 4, and the angle between each two pressure rods (2) is 90 degrees.

6. The device for protecting against tunnel gushing water according to any of claims 1-5, characterized in that said water-stop member (16) is made of a scalable rigid material.

7. The device for protecting against water burst in tunnel according to claim 1, wherein said water-blocking member (16) is provided with a valve (10) for opening and closing said water-discharge hole (6).

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