CN112031869B

CN112031869B - Tunnel water burst protection device and installation method thereof

Info

Publication number: CN112031869B
Application number: CN202010704073.4A
Authority: CN
Inventors: 段俊峰; 肖宇松; 黄勇; 刘昌裕; 张峰; 赵兴贵; 邹向农; 熊涛; 龙俊贤; 马建军
Original assignee: Wuhan Branch Of China Railway Bridge Survey And Design Institute Group Co ltd
Current assignee: Wuhan Branch Of China Railway Bridge Survey And Design Institute Group Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2022-08-09
Anticipated expiration: 2040-07-21
Also published as: CN112031869A

Abstract

The invention relates to a tunnel water burst protection device which comprises a water baffle and a ring-shaped piece arranged in a primary lining of a tunnel, wherein the water baffle is fixed on the inner ring surface of the ring-shaped piece, and a drain hole is formed in the water baffle. The invention also provides an installation method of the tunnel water burst protection device, wherein the water baffle is fixedly installed on the inner ring surface of the ring-shaped piece, the ring-shaped piece is installed in the primary lining of the tunnel, and the water baffle is provided with a drain hole. The protective device is designed into the water baffle and the ring-shaped piece arranged in the primary lining of the tunnel, the water baffle is used for plugging the inner ring surface of the ring-shaped piece, the water baffle is provided with the drain hole, the drain hole is used for slowly discharging the tunnel water burst, namely underground water outwards, the use is effective, the installation is convenient, the source, the pressure and the like of the water burst can be conveniently collected and analyzed in the later period, the accident analysis and the later-period construction propulsion cannot be influenced, and the time-consuming, labor-consuming and unsafe mode that the sand bag is used for plugging the working surface in the prior art is solved.

Description

Tunnel water burst protection device and installation method thereof

Technical Field

The invention relates to the technical field of tunnel water burst prevention and control technology, in particular to a tunnel water burst protection device and an installation method thereof.

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.

The current common means of tunnel water burst emergency is to use the sand bag to carry out the shutoff to the working face, increases the pressure of working face, then carries out the slip casting and consolidate, and 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 analyze the source, the pressure etc. of gushing water, influence accident analysis and later stage construction and impel. Therefore, improvement is desired.

Disclosure of Invention

One of the purposes of the invention is to provide a tunnel water burst protection device, so that water burst on the tunnel working surface can be blocked more quickly, and the construction progress and safety can be guaranteed. Aiming at the defects of the existing tunnel water burst protection technology, the invention provides the tunnel water burst protection device, which can realize the quick plugging of the water burst working surface, increase the pressure of the working surface, simultaneously provide emergency personnel to measure the water pressure of the water burst working surface, ensure the safety of the personnel and mechanical equipment and accelerate the emergency progress.

The technical scheme for realizing one purpose of the invention is as follows: the utility model provides a tunnel protector that gushes water for gush the working face in the tunnel and carry out the shutoff, tunnel protector that gushes water includes the breakwater and installs the ring unit in the tunnel is first lined, the breakwater is fixed in the interior anchor ring of ring unit is right the interior anchor ring of ring unit carries out the shutoff, be equipped with at least one water drainage hole on the breakwater.

Further, the water baffle is embedded and fixed on the inner ring surface of the annular piece.

Further, the tunnel water burst protection device further comprises a jacking device, wherein the jacking device acts on the inner annular surface of the annular piece and is used for enabling the annular piece to abut against the inner surface of the primary tunnel lining.

Furthermore, the loop forming element includes 2 half band-type brake formula arc members, one of them half both ends of band-type brake formula arc member are pegged graft respectively and are fixed in another half both ends of band-type brake formula arc member to form a ring.

Further, the annular part is made of scalable rigid material.

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

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

Further, the check valve comprises a gate and a gate fastener, the gate fastener is fixed in the grouting hole, one end of the gate is rotatably connected with the inner surface of the grouting hole, the other end of the gate abuts against one surface, facing the inner end of the grouting hole, of the gate fastener, when grouting is needed, slurry enters from the outer end of the grouting hole and pushes the gate to rotate inwards to allow slurry to enter, and after grouting is finished, the gate is pushed by underground water pressure to rotate outwards and touches the gate fastener to stop.

Further, the check valve is arranged on one surface of the water baffle, which faces away from the underground water.

Further, the valve is arranged on one surface of the water baffle, which faces away from the underground water.

The technical scheme for realizing one of the purposes of the invention has the beneficial effects that: the invention provides a tunnel water burst protection device, which has the following advantages: its simple structure, design benefit, through with protector design for the breakwater and install the loop forming element in the tunnel just lining, 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 on the breakwater, the wash port is used for gushing water with the tunnel promptly groundwater and outwards discharges slowly, it is effective and simple to operate, 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.

The invention also aims to provide an installation method of the tunnel water burst protection device.

The second technical scheme for realizing the aim of the invention is as follows:

a mounting method of a tunnel water burst protection device comprises the following steps:

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 lining of the tunnel, wherein the water baffle is provided with at least one water drainage hole.

Further, the drain hole is blocked before the splash plate is installed.

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

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

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

The second technical scheme for realizing the purpose of the invention has the beneficial effects that: the invention also provides an installation method of the tunnel water burst protection device, the installation of the tunnel water burst protection device can be realized only in two steps, the installation is very simple and convenient, the water baffle is provided with at least one water drainage hole, the water drainage hole is used for slowly discharging tunnel water burst, namely underground water outwards, the use is effective, the installation is convenient, the collection and analysis of the source, pressure and the like of water burst are convenient in the later period, the accident analysis and the later-period construction propulsion are not influenced, and the time-consuming, labor-consuming and unsafe mode that sand bags are adopted for plugging the working surface in the prior art is solved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail 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 limiting the invention. In the drawings:

fig. 1 is a schematic perspective view of a tunnel water burst protection device according to embodiment 1 of the present invention;

fig. 2 is a perspective structural front view of a tunnel water burst protection device provided in fig. 1;

fig. 3 is an exploded perspective view of a tunnel water burst protection device provided in fig. 1;

FIG. 4 is a schematic perspective view of a tunnel water burst protection device (after installation of a valve and a check valve) provided in FIG. 1;

FIG. 5 is a schematic structural diagram of a valve in the tunnel water burst prevention device (after the valve and the check valve are installed) provided in FIG. 4;

FIG. 6 is a schematic structural diagram of a one-way valve of the tunnel water burst prevention device (after installing a valve and a one-way valve) provided in FIG. 4;

fig. 7 is a simplified schematic front view of a tunnel water burst protection device according to embodiment 2 of the present invention;

FIG. 8 is a simplified sectional view taken along line A-A of the tunnel flood protection device shown in FIG. 7;

FIG. 9 is a simplified diagram illustrating the operation principle of opening and closing the water discharge holes in the tunnel water burst protection device shown in FIG. 7;

fig. 10 is a simplified diagram of the operation principle of opening and closing the grouting hole in the tunnel water burst protection device provided in fig. 7.

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

1. the annular steel ring can be scaled; 11. a first half band-type arc-shaped piece; 111. a jack; 12. a second half-contracting brake arc-shaped piece; 121. an insert; 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; 101. screwing down the bolt; 11. a pore pressure sensor; 12. a rotating shaft; 13. a gate; 14. a gate fastener; 15. primary lining of the tunnel; 16. a circular arc-shaped bulge; 17. A one-way valve.

Detailed Description

The principles and features of the present invention are described below in conjunction with the accompanying fig. 1-10, which are provided by way of example only 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 apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming 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 2

As shown in fig. 7-10, the invention provides a tunnel water burst protection device, which is used for blocking a tunnel water burst working surface, and comprises a water baffle and a ring-shaped element arranged in a tunnel primary lining 15, wherein the water baffle is fixed on the inner ring surface of the ring-shaped element and blocks the inner ring surface of the ring-shaped element, 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. 8, 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. 8, 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. 7, 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. 7 to 8, a plurality of protruding members 5 for tightly abutting against 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. 7 to 8, 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, and any other shape.

Preferably, as shown in fig. 9, a valve 10 for opening and closing the water discharge hole 6 is provided at the splash plate. 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. 9, 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. 7, 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. 7-8, in order to enhance the stability of the whole structure, the number of the compression rods 2 can be designed to be 4, and 90 degrees are formed between the compression 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. 7, 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. 7, 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. 7, 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 simple structure, convenient to use's check valve structure, is convenient for slip casting and prevents that groundwater from flowing out from slip casting hole 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. 10, 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. 7-8, the water baffle is made of the 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. 9, the valve 10 is provided with a fastening bolt 101 for opening and closing the valve port.

The invention also provides an installation method of the tunnel water burst protection device, which comprises the following steps: 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.

Furthermore, the check 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.

Example 1

As shown in fig. 1-6, the scalable ring-shaped steel ring comprises a first half band-type brake arc-shaped piece 11 and a second half band-type brake arc-shaped piece 12, wherein both ends of the first half band-type brake arc-shaped piece 11 are provided with insertion holes 111, and both ends of the second half band-type brake arc-shaped piece 12 are provided with insertion pieces 121. Two ends of one second half-contracting brake arc-shaped piece 12 are respectively inserted and fixed at two ends of the other first half-contracting brake arc-shaped piece 11 to form a circular ring.

The outer surface of each semi-contracting brake type arc-shaped element is provided with a plurality of arc-shaped bulges 16 which are tightly abutted with the inner surface of the tunnel primary lining 15, and the fastening performance between the outer ring surface of the annular element and the inner surface of the tunnel primary lining 15 is further realized.

As shown in fig. 1-10, the specific working principle and the using method of the 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 8, 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.

The invention provides a tunnel water burst protection device, which has the following advantages: 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 invention also has the following advantages:

(1) the device is detachable and convenient to carry, can be quickly assembled and used for plugging a water burst working surface, and protects the safety of constructors and machinery;

(2) the device is provided with the 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, and the device is provided with the drainage hole 6 to help discharge underground water, the grouting hole 7 to facilitate grouting reinforcement, the monitoring hole to help monitor underground water pressure and facilitate analysis of accident reasons;

(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 invention relates to a tunnel water burst protection device which comprises a plurality of parts, such as a bottom scalable annular steel ring, a pressure rod, an oil jack, a steel shield and the like. By the installation and the use of the invention, the tunnel water burst operation surface can be quickly and effectively plugged. In order to better treat the water burst of the tunnel, the invention provides the grouting holes on the steel shield, thereby realizing the grouting reinforcement of the water burst working surface and preventing the backflow of underground water. In addition, the steel shield is provided with the drain hole, and the pore pressure sensor is arranged in the drain hole, so that underground water pressure can be monitored in real time while underground water is guided, and a powerful basis is provided for dangerous case analysis and treatment.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a tunnel protection device that gushes water for gush the working face in tunnel and carry out the shutoff, a serial communication port, tunnel protection device that gushes water includes the breakwater and installs the loop forming element in tunnel primary lining (15), the breakwater is fixed in the internal anchor ring of loop forming element is right the internal anchor ring of loop forming element carries out the shutoff, be equipped with at least one water drainage hole (6) on the breakwater, tunnel protection device that gushes water still includes the top tight device, the top tight device acts on the internal anchor ring of loop forming element is used for making it and tunnel primary lining's internal surface butt, wherein the both ends of top tight device respectively with the internal anchor ring of loop forming element, the loop forming element includes first half band-type arc and second half band-type brake arc, and the both ends of first half band-type arc all are equipped with the jack, and the both ends of second half-type band-type brake arc all are equipped with the insert, and wherein the both ends of one of second half-type band-type brake arc are pegged graft respectively and are fixed in another first half-type arc The both ends of piece to form a ring, first half band-type brake formula arc spare with be equipped with a plurality of arc archs that are used for with the inseparable butt of the internal surface of tunnel lining on the surface of second half band-type brake arc spare.

2. The device of claim 1, wherein the water baffle is embedded and fixed on the inner annular surface of the annular member.

3. The tunnel water burst prevention device according to claim 1, wherein the water baffle is provided with a valve (10) for opening and closing the drain hole (6).

4. The tunnel water burst protection device according to claim 1, wherein the water baffle is further provided with at least one grouting hole (7), and a check valve is arranged on the water baffle at the grouting hole (7).

5. The tunnel water burst protection device according to claim 4, wherein the one-way valve comprises a gate (13) and a gate fastener (14), the gate fastener (14) is fixed in the grouting hole (7), one end of the gate (13) is rotatably connected with the inner surface of the grouting hole (7), the other end of the gate (13) abuts against one surface of the gate fastener (14) facing the inner end of the grouting hole (7), when grouting is required, grout enters from the outer end of the grouting hole (7) and pushes the gate (13) to rotate inwards for entering of grout, and after grouting is finished, the gate (13) is pushed by groundwater pressure to rotate outwards and touches the gate fastener (14) to stop.

6. The device of claim 4, wherein the check valve is disposed on a surface of the water baffle facing away from the ground water.

7. The tunnel water burst protection device according to claim 3, wherein the valve (10) is arranged on the surface of the water baffle plate, which faces away from the groundwater.

8. A method for installing the tunnel water burst protection device according to any one of claims 1 to 7, characterized by comprising the following steps:

and fixedly installing a water baffle on the inner ring surface of the ring-shaped piece, and installing the ring-shaped piece in the tunnel primary lining (15), wherein the water baffle is provided with at least one water drainage hole (6).

9. The method for installing a tunnel water burst prevention device according to claim 8, wherein the drain hole (6) is blocked before installing the water guard.

10. The method for installing a tunnel water burst protection device in accordance with claim 8, wherein at least one grouting hole (7) is further formed in the water guard, and a check valve is provided at the grouting hole (7) and on the water guard.

11. The method of claim 10, wherein the one-way valve is disposed on a surface of the splash plate facing away from groundwater.

12. The method for installing the tunnel water burst protection device according to claim 8, wherein a valve (10) for opening and closing the drain hole (6) is arranged on the water baffle, and the valve (10) is arranged on the surface of the water baffle, which faces away from groundwater; the valve (10) is closed before the water deflector is installed.