CN109505634B - Emergency type anti-seepage water-air bag device in tunnel and application method thereof - Google Patents
Emergency type anti-seepage water-air bag device in tunnel and application method thereof Download PDFInfo
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- CN109505634B CN109505634B CN201910077278.1A CN201910077278A CN109505634B CN 109505634 B CN109505634 B CN 109505634B CN 201910077278 A CN201910077278 A CN 201910077278A CN 109505634 B CN109505634 B CN 109505634B
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- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000010276 construction Methods 0.000 claims abstract description 20
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- 230000007547 defect Effects 0.000 claims abstract description 7
- 210000004712 air sac Anatomy 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 5
- 230000009286 beneficial effect Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 4
- 230000002265 prevention Effects 0.000 claims 3
- 229910052742 iron Inorganic materials 0.000 claims 2
- 230000004888 barrier function Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 5
- 230000008719 thickening Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/385—Sealing means positioned between adjacent lining members
- E21D11/386—Sealing means positioned between adjacent lining members inflatable sealing means
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
- E21D11/383—Waterproofing; Heat insulating; Soundproofing; Electric insulating by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an emergency type anti-seepage water-air bag device in a tunnel, which comprises an air bag body which is arched after being inflated and matched with the inner wall of the tunnel, wherein the lower surface of the air bag body is provided with a plurality of supporting points used for being connected with a hydraulic telescopic rod, the upper surface of the air bag body is provided with a plurality of annular bulges, and grouting holes are formed in the annular bulges; the hydraulic telescopic rod is arranged in a ground bolt device on the ground in the tunnel. When water seepage occurs in the tunnel or the possibility of water seepage is detected, the hydraulic telescopic rod is erected to support the air bag body, the high-pressure air pump is used for inflating, the hydraulic telescopic rod is adjusted to be close to the top of the tunnel, the water blocking and drainage functions are achieved, and water is dredged to the drainage ditch in the tunnel along the outer surface of the air bag body. And after the grouting holes are inflated, the grouting holes reach a preset caliber, are connected with grouting pipes, and perform grouting support for the defect part. The invention also discloses a using method of the device. The invention can effectively drain the water seepage in the tunnel and perform timely reinforcement, reduce the tunnel construction risk and promote the tunnel construction progress.
Description
Technical Field
The invention relates to a tunnel construction technology, in particular to an emergency type seepage-proof water-air sac device in a tunnel and a use method thereof.
Background
In recent years, china begins to construct a large amount of urban underground traffic lines. Different from ground traffic engineering construction, tunnel construction engineering geological conditions are complex, the requirements on construction technology are high, the problem of water seepage after primary support of a tunnel is easy to occur due to the fact that water flow in a soil layer is difficult to control, the tunnel construction method is particularly common in fault zones and water-rich stratum, and the danger of tunnel construction is increased.
The tunnel water seepage accident is characterized by having burst property, if measures are not taken in time, the possibility of expansion is increased, the construction period is delayed, the construction operation surface is damaged, and even the casualties are caused.
The current general solution is to consolidate the soil body through the concrete spraying when the primary support, prevent infiltration, but the concrete spraying of the primary support can not necessarily reach sufficient protection intensity, and can't in time handle to problem area, when the infiltration condition takes place, easily enlarges the infiltration area fast, causes the condition that is difficult to repair to do not have effective reinforcement measure, need to improve urgently.
Chinese patent application CN107489435a discloses a removable inflatable waterstop for mine method tunnel, and it has solved among the prior art and has had the unable problem of effectively solving tunnel infiltration water leakage of current waterstop, and it has construction convenience, can improve the waterproof ability of tunnel expansion joint department, and the effect of changing that tunnel operation period can be convenient, and its technical scheme is: including the gasbag groove, gasbag groove and gasbag laminating setting, the gasbag groove includes the arc section of jurisdiction of two relative settings, has the clearance of setting for between the tip of two arc section of jurisdictions, fills in waterproof mineral grease between arc section of jurisdiction inboard and the gasbag, and the arc section of jurisdiction outside is connected and is set up a plurality of anchor clamps. The waterproof capability of tunnel expansion joint department can be improved to it, and the tunnel operation period can be convenient change. However, when water leakage occurs in the tunnel, the blocking is removed by the air bag only, which does not always take effect, and when the water flow pressure is high or the water quantity is high, the air bag is even flushed away, so that water is fed in a large range.
Chinese patent application CN 205618200N discloses an inflatable tunnel shield seals high-pressure rubber gasbag, and it includes shield constructs the quick-witted shell, one side of shield constructs the quick-witted shell is equipped with the rubber slab, one side that shield constructs the quick-witted shell is kept away from to the rubber slab is equipped with high-pressure rubber gasbag, high-pressure rubber gasbag installs in the recess of portal wall body, it has the slip casting pipe to alternate in the portal wall body, the both ends of rubber slab are equipped with adjustable support, one side and the portal wall body of adjustable support offset, one side that the rubber slab was kept away from to the adjustable support is equipped with the clamp plate, one side that the adjustable support was kept away from to the clamp plate is equipped with the fastener, the fastener passes adjustable support and clamp plate and is connected with the rubber slab. The sealing method has the advantages of less equipment, simple installation and operation, better sealing effect, improvement and improvement of the traditional tunnel portal sealing mode, and wide application in the tunnel entering and exiting sealing engineering of the shield machine, but the device only has the function of providing sealing for the shield machine, ensuring the better tunnel entering and exiting of the shield machine, and does not relate to the waterproof method in tunnel excavation and after primary support, and does not solve the practical problem proposed by the patent of the invention.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides an emergency type seepage-proof water-air bag device in a tunnel and a use method thereof, which can effectively drain seepage in the tunnel and timely reinforce the seepage, reduce the tunnel construction risk and improve the tunnel construction progress.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an emergency type seepage-proof water air bag device in a tunnel comprises an air bag body which is arched after inflation and is matched with the inner wall of the tunnel, a plurality of grouting holes are formed in the air bag body, the grouting holes longitudinally penetrate through the air bag body and are sealed and isolated from a cavity in the air bag body, the grouting holes are exposed after the air bag body is inflated, and a circle of annular protrusions are arranged at the orifice of each grouting hole on the upper surface of the air bag body to prevent water flow from leaking into the tunnel through the grouting holes; the lower surface of the air bag body is provided with a plurality of supporting points which are used for being connected with a hydraulic telescopic rod, and the hydraulic telescopic rod is arranged on a ground bolt device on the ground in a tunnel.
The air bag body is prefabricated and formed according to the size of a construction tunnel, the thickness of the top of the air bag body is 1.4-1.8m, the thickness of the two sides of the air bag body is 0.8-1.2m after the air bag body is inflated, the air bag body is made of shrinkable rubber, the air bag body can bear the pressure of small-range water burst, when a water head is impacted on the air bag body, the air bag body absorbs the energy of the water head through small deformation, and water is dredged into drainage channels on the two sides of the tunnel.
The bottom of the air bag body is provided with an air charging hole, the high-pressure air pump charges air into the air charging hole, the number of the air charging holes is determined according to the length of the air bag body, and the air bag body can be inflated within one minute.
The supporting point position of the lower surface of the air bag body is provided with a rubber thickening circular pad, the rubber thickening circular pad is provided with a square groove, the tail end of the hydraulic telescopic rod is square, and the hydraulic telescopic rod is inserted into the square groove to be fixed.
The annular bulge on the upper surface of the grouting hole is 15-20cm beyond the upper surface of the air bag body, so that when water flows through the outer side surface, water flow is prevented from directly leaking into the tunnel through the grouting hole, and when the grouting pipe is connected for grouting support, the annular bulge around the grouting hole is more beneficial to reinforcing specific defect positions.
And the grouting hole is provided with a rotary thread with the length of 0.4m and is used for being screwed with the thread at the head part of the grouting pipe to fix the grouting pipe.
The ground bolt devices are longitudinally arranged in two rows along the tunnel and are arranged on two sides of the central line of the tunnel, one ground bolt device is arranged every 1m, the ground bolt devices are surrounded by four-side steel sheets, an open groove is reserved at the upper part of each ground bolt device, and the hydraulic telescopic rod is inserted into the ground bolt devices to support the air bag body.
The longitudinal length of the air bag body is about 4-10m, the length is determined according to the soil property condition of a tunnel, and the length is lengthened if more faults or water-rich areas exist.
The lower part both sides of the gasbag body are marked with scales, and the lowest is 10% sign, upwards takes 10% as interval, and is marked with five scales until 50%. The arch part of the air bag body is gradually raised at the lower part in the initial stage of the inflation process, and the lowest position of the arch part of the air bag body is used for comparing with the scale, so that the inflation degree can be seen, and the scale is the inflation degree prompt sign.
The application method of the emergency type anti-seepage water-air bag device in the tunnel comprises the following steps:
a. carrying an uninflated air bag body into a preset position, enabling the air bag body to be vertical to the tunnel longitudinally, connecting a high-pressure inflator pump with an air charging hole of the air bag body, and opening the high-pressure inflator pump for inflation;
b. when the air bag body is inflated to 30%, a hydraulic telescopic rod is erected, a square rod head at the tail end of the hydraulic telescopic rod is inserted into a supporting point, the lower part of the hydraulic telescopic rod is inserted into a groove of the ground bolt device, the air bag body is supported, and the angle is changed along with the expansion of the air bag body;
c. the air bag body is continuously inflated until the air bag body is inflated in place, the air bag body is adjusted to be 20-30cm away from the top of the tunnel by the hydraulic telescopic rod, the air bag body has the functions of blocking water and draining water, and the air bag body can drain water to a drainage ditch in the tunnel along the outer surface of the air bag body and then is conveyed out of the tunnel by the drainage ditch;
d. grouting holes reach a preset caliber after the grouting holes are inflated, grouting support is carried out on the water leakage part, firstly, the grouting holes around the water leakage part are connected with a grouting pipe, grouting is started, the position of the air bag body is slightly moved by adjusting the hydraulic telescopic rod, the grouting holes are close to the water leakage part, and therefore slurry enters the water leakage gap;
e. after grouting is completed, the grouting pipe is twisted down, and after the water leakage condition is eliminated, a gas leakage valve of the high-pressure inflator pump is opened, so that the airbag body is recovered after gas leakage, and is reused.
The beneficial effects of the invention are as follows:
the invention can effectively solve the problems in the Chinese patent application CN107489435A, guide water flow and discharge the water flow out of the tunnel, and provide a compensation and reinforcement measure after water leakage, so that the water is effectively controlled by dredging and blocking.
The structure is simple, the use is convenient, the water leakage is resisted outside the air bag by means of the air bag body conforming to the inner surface of the tunnel, the water is isolated at the outer edge of the tunnel like an umbrella and then is led into the drainage channel, the problem that the effect is poor due to the fact that the air bag is completely used for blocking water in the prior art is well solved, and the water flow is led in time; and the defect part is reinforced in time through the grouting holes, so that the defect part of water leakage is eliminated, the combination of dredging and blocking is truly achieved, water is effectively controlled, the pre-protection can be realized, the tunnel construction risk is reduced, the tunnel construction progress is improved, and the grouting device is particularly suitable for fault zones and water-rich stratum, and therefore the construction quality is effectively guaranteed.
Drawings
FIG. 1 is a state diagram of the use of the present invention;
FIG. 2 is a top view of the present invention in use;
FIG. 3 is a detailed view of the support point of the present invention;
the hydraulic grouting device comprises a gas bag body 1, a hydraulic telescopic rod 2, a supporting point position 3, a grouting hole 4, an annular bulge 5, a ground bolt device 6, a gas charging hole 7, a gas discharging valve 8, a water discharging channel 9, a tunnel 10, a rubber thickening circular pad 11, a square groove 12, a rotary thread 13 and a scale 14.
Detailed Description
The invention will be further described with reference to the drawings and examples.
The drawings or the structures, proportions, sizes, etc. shown in the drawings or depicted in the present specification are for the purpose of understanding and reading by those skilled in the art, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, proportional changes, or dimensional adjustments should not be made in the technical spirit, and should not affect the efficacy or achievement of the present invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1-3, an emergency type impermeable water-air sac device in a tunnel comprises an air sac body 1 which is arched after being inflated and is matched with the inner wall of the tunnel, a plurality of grouting holes 4 are formed in the air sac body 1, the grouting holes 4 longitudinally penetrate through the air sac body 1 and are sealed and isolated from a cavity in the air sac body, the grouting holes 4 are exposed after the air sac body 1 is prefabricated along with the air sac body 1, and a circle of annular protrusions 5 are arranged at the orifice of each grouting hole on the upper surface of the air sac body 1 to prevent water flow from leaking into the tunnel through the grouting holes 4; the lower surface of the air bag body 1 is provided with a plurality of supporting points 3 which are used for being connected with the hydraulic telescopic rod 2, and the hydraulic telescopic rod 2 is arranged on a ground bolt device 6 on the ground in a tunnel.
The air bag body 1 is prefabricated and formed according to the size of a construction tunnel, the thickness of the top of the air bag body 1 is 1.4-1.8m, the thickness of the two sides of the air bag body 1 is 0.8-1.2m after the air bag body is inflated, the air bag body 1 is made of shrinkable rubber, the air bag body can bear the pressure of small-range water burst, when a water head is impacted on the air bag body 1, the air bag body 1 absorbs the energy of the water head through small deformation, and water is dredged to the drainage channels 9 on the two sides of the tunnel.
The bottom of the air bag body 1 is provided with an air charging hole 7, the high-pressure air pump charges air into the air charging hole 7, the number of the air charging holes 7 depends on the longitudinal length of the air bag body, and the air bag body 1 can be completely charged within one minute.
The supporting point 3 on the lower surface of the air bag body 1 is provided with a rubber thickening circular pad 11, the rubber thickening circular pad 11 is provided with a square groove 12, the tail end of the hydraulic telescopic rod 2 is square, and the hydraulic telescopic rod is fixed after being inserted into the square groove 12.
The annular bulge 5 exceeds the upper surface 15-20cm of the air bag body 1, so that when water flows through the outer side surface, the water is prevented from directly leaking into the tunnel 10 through the grouting holes 4, and when a grouting pipe is connected for grouting support, a circle of annular bulge around the grouting holes is more beneficial to reinforcing specific defect positions.
The grouting hole 4 is provided with a rotary screw thread 13 with the length of 0.4m, which is used for screwing with the screw thread of the head part of the grouting pipe to fix the grouting pipe.
The ground bolt devices 6 are arranged in two rows along the length direction of the tunnel 10, are positioned on two sides of the central line of the tunnel 10, are arranged at intervals of 1m, the ground bolt devices 6 are surrounded by four-side steel sheets, open grooves are reserved at the upper parts of the ground bolt devices, and the hydraulic telescopic rods 2 are inserted into the open grooves to support the air bag body 1.
The length of the air bag body 1 is 4-10m, the length is determined according to the soil property condition of a tunnel, and the length is lengthened if more faults or water-rich areas exist.
The lower two sides of the air bag body 1 are marked with scales 14, the lowest 10% mark, and the upper 10% mark is marked with five scales until 50%. The arch part of the air bag body 1 is gradually raised at the lower part in the initial process of inflation, and the lowest position of the arch part of the air bag body is compared with the scale 14, so that the inflation degree can be seen, and the scale 14 is the inflation degree prompt sign.
The application method of the emergency type anti-seepage water-air bag device in the tunnel comprises the following steps:
a. carrying the uninflated air bag body 1 into a preset position, enabling the air bag body 1 to be vertical to the tunnel 10 longitudinally, connecting a high-pressure inflator pump with an inflation hole 7 of the air bag body 1, and opening the high-pressure inflator pump for inflation;
b. when the air bag body 1 is inflated to 30%, the hydraulic telescopic rod 2 is erected, the square rod head at the tail end of the hydraulic telescopic rod 2 is inserted into the supporting point 3, the lower part of the hydraulic telescopic rod 2 is inserted into the groove of the ground bolt device 6, the air bag body 1 is supported, and the angle is changed along with the expansion of the air bag body 1;
c. the air bag body 1 is continuously inflated until the air bag body is inflated in place, the air bag body is regulated to be 20-30cm away from the top of the tunnel 10 by the hydraulic telescopic rod 2, the air bag body has the functions of water shutoff and water drainage, and water can be guided to the position of the drainage channel 9 in the tunnel along the outer surface of the air bag body 1 and then conveyed out of the tunnel 10 by the drainage channel 9;
d. grouting holes 4 reach a preset caliber after the air is inflated, grouting support is carried out on the water leakage part, firstly, the grouting holes 4 around the water leakage part are connected with a grouting pipe, grouting is started, the position of the air bag body 1 is slightly moved by adjusting the hydraulic telescopic rod 2, the grouting holes 4 are close to the water leakage part, and therefore slurry enters a water leakage gap;
e. after grouting is completed, the grouting pipe is twisted down, and after the water leakage condition is eliminated, the air leakage valve 8 is opened, so that the air bag body 1 is recovered after air leakage, and the air bag is reused.
While the foregoing description of the embodiments of the present invention has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the invention, but rather, it is intended to cover all modifications or variations within the scope of the invention as defined by the claims of the present invention.
Claims (7)
1. An emergency type seepage-proof water air bag device in a tunnel comprises an air bag body which is arched after inflation and is matched with the inner wall of the tunnel, a plurality of grouting holes are formed in the air bag body, the grouting holes longitudinally penetrate through the air bag body and are sealed and isolated from a cavity in the air bag body, the grouting holes are exposed after the air bag body is inflated, and a circle of annular protrusions are arranged at the orifice of each grouting hole on the upper surface of the air bag body to prevent water flow from leaking into the tunnel through the grouting holes; the lower surface of the air bag body is provided with a plurality of supporting points used for being connected with a hydraulic telescopic rod, and the hydraulic telescopic rod is arranged on a ground bolt device on the ground in a tunnel;
the air bag body is prefabricated and formed according to the size of a construction tunnel, the thickness of the top of the air bag body is 1.4-1.8m, the thickness of the two sides of the air bag body is 0.8-1.2m after the air bag body is inflated, the air bag body is made of shrinkable rubber, the air bag body can bear the pressure of small-range water burst, when a water head is impacted on the air bag body, the air bag body absorbs the energy of the water head through small deformation, and water is dredged to drainage channels on the two sides of the tunnel;
the annular bulge exceeds the upper surface of the air bag body by 15-20cm, so that when water flows through the outer side surface, water flow is prevented from directly leaking into the tunnel through the grouting holes, and when the grouting pipe is connected for grouting support, a circle of annular bulge around the holes is more beneficial to reinforcing the defect part;
the ground bolt devices are longitudinally arranged in two rows along the tunnel and are arranged on two sides of the central line of the tunnel, one ground bolt device is arranged every 1m, the upper part of the ground bolt device is surrounded by three steel sheets, one surface of the ground bolt device is provided with an open groove, and the hydraulic telescopic rod is inserted into the groove to support the air bag body.
2. The in-tunnel emergency type water seepage prevention air bag device according to claim 1, wherein an air inflation hole is reserved at the bottom of the air bag body, and a high-pressure inflator pump inflates the air inflation hole.
3. The emergency type impermeable water air bag device in a tunnel according to claim 1, wherein a rubber thickened circular pad is arranged at a supporting point position of the lower surface of the air bag body, an iron square groove is formed in the rubber thickened circular pad, the tail end of the hydraulic telescopic rod is square, and the hydraulic telescopic rod is inserted into the iron square groove to be fixed.
4. The emergency type impermeable water air sac device in a tunnel according to claim 1, wherein a rotary thread with the length of 0.4m is arranged in the grouting hole and is used for being screwed with the thread of the head part of a grouting pipe to fix the grouting pipe.
5. The emergency type water seepage prevention air bag device in the tunnel according to claim 1, wherein the length of the air bag body is 4-10m, the length is determined according to the soil property condition of the tunnel under construction, and the length is lengthened when more faults or water-rich areas exist.
6. The in-tunnel emergency type water seepage prevention air bag device according to claim 1, wherein the two sides of the lower part of the air bag body are marked with scales, the lowest scale is 10%, the upper part is marked with 10% as interval until 50% is marked with five scales, the vault part of the air bag body is initially and gradually lifted at the lower part in the inflation process, the lowest position of the vault part of the air bag body is used for comparing the scales, and the inflation degree can be seen, and the scales are the inflation degree prompt marks.
7. A method of using an emergency water and air barrier device in a tunnel according to any one of claims 1 to 6, comprising the steps of:
a. carrying an uninflated air bag body into a preset position, enabling the air bag body to be vertical to the tunnel longitudinally, connecting a high-pressure inflator pump with an air charging hole of the air bag body, and opening the high-pressure inflator pump for inflation;
b. when the air bag body is inflated to 30%, a hydraulic telescopic rod is erected, a square rod head at the tail end of the hydraulic telescopic rod is inserted into a supporting point, the lower part of the hydraulic telescopic rod is inserted into a groove of the ground bolt device, the air bag body is supported, and the angle is changed along with the expansion of the air bag body;
c. the air bag body is continuously inflated until the air bag body is inflated in place, the air bag body is adjusted to be 20-30cm away from the top of the tunnel by the hydraulic telescopic rod, the air bag body has the functions of blocking water and draining water, and can drain the water to a drainage channel in the tunnel along the outer surface of the air bag body and then convey the water to the outside of the tunnel through the drainage channel;
d. grouting holes reach a preset caliber after the grouting holes are inflated, grouting support is carried out on the water leakage part, firstly, the grouting holes around the water leakage part are connected with a grouting pipe, grouting is started, the position of the air bag body is slightly moved by adjusting the hydraulic telescopic rod, the grouting holes are close to the water leakage part, and therefore slurry enters the water leakage gap;
e. after grouting is completed, the grouting pipe is twisted down, and after the water leakage condition is eliminated, the air leakage valve is opened, so that the air bag body is recovered after air leakage, and the air bag body is reused.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077278.1A CN109505634B (en) | 2019-01-28 | 2019-01-28 | Emergency type anti-seepage water-air bag device in tunnel and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910077278.1A CN109505634B (en) | 2019-01-28 | 2019-01-28 | Emergency type anti-seepage water-air bag device in tunnel and application method thereof |
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| Publication Number | Publication Date |
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| CN109505634A CN109505634A (en) | 2019-03-22 |
| CN109505634B true CN109505634B (en) | 2023-10-17 |
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| CN201910077278.1A Active CN109505634B (en) | 2019-01-28 | 2019-01-28 | Emergency type anti-seepage water-air bag device in tunnel and application method thereof |
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| CN112228120B (en) * | 2020-10-14 | 2023-04-28 | 中铁六局集团有限公司 | Quick plugging device for water and sand gushing in complex environment of shield construction |
| CN112523787A (en) * | 2020-11-04 | 2021-03-19 | 华南理工大学 | Mobile shield tunnel temporary reinforcing platform |
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