CN112177638A - Water-flowing large-channel water-inrush drilling net rack, air bag and grouting integrated plugging device and method - Google Patents
Water-flowing large-channel water-inrush drilling net rack, air bag and grouting integrated plugging device and method Download PDFInfo
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- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 126
- 239000011083 cement mortar Substances 0.000 claims abstract description 15
- 230000009172 bursting Effects 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000004575 stone Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 22
- 239000002002 slurry Substances 0.000 claims description 18
- 239000011440 grout Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 claims 1
- 238000007569 slipcasting Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 6
- 239000011435 rock Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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Abstract
Compared with the traditional plugging technology, the grid-air bag-grouting integrated plugging technology can enhance the stability of a plugging body, and the stability in flowing water is improved by adopting gas-solid replacement. When water inrush occurs at a certain position in a roadway, firstly, a drill rod is inserted into the bottom of a water inrush channel through a ground drilling hole. Then, the telescopic net frame in the drill rod is opened to form a net-shaped longitudinal and transverse support, namely a net frame, in the water inrush channel. And secondly, opening the air bag in the drill rod in an inflation mode to enable the air bag to expand to be matched with the section of the water bursting channel, so that the water bursting channel plugging air bag attached to the net rack is formed. And finally, by utilizing a gas-solid replacement structure, injecting cement mortar into the plugging air bag through the drill rod to replace gas in the air bag, and finally forming a filling wall body for plugging the water inrush channel after the cement mortar is solidified to generate stone solids, so that the water inrush of the large channel is controlled in a local range.
Description
Technical Field
The invention relates to a movable water large-channel water inrush drilling net rack, an air bag and grouting integrated plugging device and a method, which are mainly used for treating large-channel, large-flow and high-water-pressure water hazards generated in the production process of mines, railways, highways and water conservancy.
Background
Mine flood is one of five safety disasters in the mine construction and production process, and particularly, the mine water inrush often causes huge casualties and property loss. In 2019, 1401 happened in China together with a coal mine flood accident, and 5480 people died. Wherein, the number of the 2010 dead people and the 112 initial serious flood accident account for 7.99 percent and 36.68 percent of the total number of the initial flood accident and the total number of the dead people respectively. Researchers find that the occurrence trend of the coal mine serious accidents in China is basically consistent with the general trend of the coal mine accidents in 2000-2019, but the number of the accidents of the serious flood and death people is increased year by year in the proportion of the serious accidents, and the average proportion reaches 21.05%. A large amount of fact data indicate that mine water inrush often causes cluster death and cluster injury.
Aiming at coal mine water inrush accidents, the current common solution in China is to simultaneously implement mine drainage and grouting water shutoff, wherein the grouting water shutoff is generally carried out in two stages, namely, a water passing roadway is firstly plugged, the moving water is changed into static water, and the water passing roadway is treated in the second stage, so that flood disasters are thoroughly eradicated. The first-stage blocking of the water passing roadway is usually that the water passing roadway is directly drilled on the ground, then aggregate and other auxiliary materials are put into the water passing roadway to fill the water passing roadway, the underground water flow state in the roadway is changed into seepage flow from pipeline flow, and then grouting consolidation treatment is carried out. When the water-passing roadway is faced with a water-passing roadway with high water flow speed, the aggregate filled into the directly drilled hole is easy to disperse, is not easy to condense, has small success rate, and the whole treatment process needs to be changed into seepage and then grouting, so that the engineering quantity is large, and the treatment period is long. The grouting range is not limited during grouting, and the grouting liquid is easy to waste. Therefore, the traditional grouting water plugging technology has poor stability, and has low plugging success rate and poor stability when facing high water pressure, large flow and large channel flowing water.
Aiming at the problems, in the key technology and equipment [ J ] for controlling grouting and efficiently plugging in water bursting drill holes of a large channel for flowing water and the Zhumingcheng, coal field geology and exploration, 2015 and 43 (4): 55-58 "describes a new method, which utilizes a special control grouting drilling tool to send a slurry retaining bag into a water tunnel, then carries out grouting on the slurry retaining bag in the water tunnel, and leads the slurry retaining bag to be separated from the control grouting drilling tool by the pressure generated by grouting so as to lead the slurry retaining bag to be retained in the water tunnel. Compared with the method, the method avoids the situation that the grout is dispersed without being solidified in a certain range, and improves the success rate of grouting and water plugging to a certain extent. However, for high water pressure, large flow and large channel running water, the method also has the same problem that the high-speed water flow washes away the pulp retention bag, and the problem is not solved fundamentally.
Aiming at the problems, the research of a novel rapid plugging device and a method under the conditions of high water pressure, large flow and large channel flowing water is imperative.
Disclosure of Invention
The invention aims to provide a drilling net rack-air bag-grouting integrated large-channel flowing water rapid plugging device and method, which can rapidly control high water pressure, large flow and large-channel flowing water in a local range of a water inrush channel and provide a brand new idea and method for water damage prevention and control of coal mines and underground engineering.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
the integrated plugging device for the water inrush drilling net rack, the air bag and the grouting of the flowing water large channel comprises a drill rod and a drill bit connected with the drill rod, net rack outlets are respectively arranged on two sides of the drill rod, and an air bag outlet is arranged on the front surface of the drill rod; the device also comprises a telescopic net rack, an air bag and a gas-liquid replacement structure which are arranged in the drill rod, wherein the net rack can extend out of the drill rod through an outlet of the net rack to form a net rack together with the drill rod; the gas-liquid replacement structure can inflate, inject and exhaust the air bag; the air bag is opened from the air bag outlet under the inflating action of the gas-liquid replacement structure and is expanded to be matched with the cross section of the water inrush channel to form the inflated air bag attached to the net rack, and the inflated air bag replaces gas in the air bag with cement mortar under the grouting and exhausting actions of the gas-liquid replacement structure.
As a preferred choice of the movable water large-channel water inrush drilling net rack, the air bag and the grouting integrated plugging device, the telescopic net rack comprises a fixed rod, support rods and a control structure, the fixed rod is fixedly arranged inside the drill rod, the support rods are rotatably arranged on two sides of the fixed rod through torsional springs, a net is connected between every two adjacent support rods, the control structure is started, the support rods extend out of the drill rod through net rack outlets under the action of the torsional springs and the control structure, and the support rods are opened to form the net rack.
As another preferred choice of the movable water large-channel water inrush drilling net rack, the air bag and the grouting integrated plugging device, the control structure comprises a push rod, a pull rod and a clamping groove, the push rod is arranged in the fixed rod, one end of the pull rod is rotatably connected with the push rod, and the other end of the pull rod is rotatably and slidably connected with the supporting rod; the clamping groove is arranged on the fixed rod and used for fixing the push rod after the support rod extends out of the drill rod; when the push rod is pushed downwards, one end of the traction rod rotates around the push rod, and the other end of the traction rod slides along the support rod to prop open the support rod together with the torsion spring.
As another preferred embodiment of the water-flowing large-channel water-inrush drilling net rack, the air bag and the grouting integrated plugging device, the telescopic net rack comprises a push rod and a support rod, the push rod is arranged inside the drill rod, the support rod is rotatably connected to two sides of the push rod through the torsion spring, and a net is connected between every two adjacent support rods; branch is in compression state under the effect of drilling rod inner wall, when pushing away the push rod downwards along the drilling rod, pushes away branch extremely when the rack export, branch is opened and is formed the rack.
As another preferred choice of the movable water large-channel water-inrush drilling net rack, the air bag and the grouting integrated plugging device, the support rod is a telescopic rod, and the end part of the support rod is in an arrow shape.
As still another preferable aspect of the water flowing large channel water bursting drilling net rack, the air bag and the grouting integrated plugging device of the invention, the gas-liquid replacement structure comprises an inflatable grouting pipe and an exhaust slurry return pipe which are respectively connected with the air bag.
Based on the device, the invention also provides a method for integrally plugging the drilling net rack, the air bag and the grouting of the large channel water inrush of the flowing water by using the device, which comprises the following steps:
(1) drilling a hole on the ground, and inserting the device into the bottom of the water inrush channel;
(2) opening the telescopic net racks through the net rack outlets on the two sides of the drill rod so as to form a net-shaped longitudinal and transverse support, namely a net rack, in the water inrush channel;
(3) inflating the air bag through the air-liquid replacement structure, and opening the air bag through an air bag outlet to enable the air bag to expand to be matched with the section of the water inrush channel, so that the water inrush channel plugging air bag attached to the net rack is formed;
(4) and (3) injecting cement mortar into the plugging air bag by using the gas-liquid replacement structure to replace gas in the air bag, and finally forming a filling wall body for plugging the water inrush channel after the cement mortar is solidified to generate a stone solid, so that the water inrush of the roadway is controlled at a local position.
Preferably, the method further comprises the step (5) of performing secondary plugging on the side with the water flow, inserting the grouting drill rod into the water bursting channel through surface drilling, and then directly performing grouting.
As another preferable mode of the method, in the step (2), when the push rod is pushed vertically downward and the struts on both sides of the push rod are pushed out to the rack outlet, the struts are opened to form the rack.
As another preferable mode of the method, in the step (3), the air exhaust slurry return pipe is closed, the air inflation grouting pipe is opened, the air bag is inflated, and the air bag is opened through the air bag outlet under the action of air pressure; when the air bag expands to be matched with the water bursting channel, grouting the air bag by using the inflatable grouting pipe, and simultaneously opening the exhaust grout returning pipe to replace the gas in the air bag; and stopping grouting when the slurry is discharged from the exhaust slurry return pipe.
Compared with the prior art, the invention has the following beneficial effects:
(1) the device fixes the air bag in the water bursting channel by utilizing the net rack, and the air bag after grouting is prevented from being washed away by high-pressure water, so that the success rate of grouting and water plugging is improved, and the stability of the device is improved;
(2) the device firstly utilizes the gas-liquid replacement structure to inflate the air bag, so that the air bag is matched with the section of the water inrush channel, and then the gas is replaced by cement mortar through the gas-liquid replacement structure, so that the air bag after grouting can be matched with the section of the water inrush channel, the water in the water inrush channel is completely plugged at one time, the success rate of grouting and water plugging is improved, and the repeated grouting and water plugging operation is simplified;
(3) the method is simple to operate, high in success rate and flexibility, and suitable for quickly plugging a large channel with high water pressure, large flow and large flowing water.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 (a first embodiment of the present apparatus);
FIG. 4 is a view of the telescopic net mount of FIG. 3 in an open state;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;
FIG. 6 is a cross-sectional view A-A of FIG. 1 (another embodiment of the present apparatus);
FIG. 7 is a view of the telescopic rack of FIG. 6 in an open position;
FIG. 8 is a first state diagram of the apparatus in use;
FIG. 9 is a schematic view of the telescopic net mount of FIG. 8 in a state;
FIG. 10 is a second state of the device in use;
FIG. 11 is a schematic structural view of the telescopic net frame and the air bag when the air bag is gradually opened;
FIG. 12 is a third state diagram of the device in use;
FIG. 13 is a schematic structural view of the air bag after cement mortar is injected;
FIG. 14 is a schematic view of the structure after secondary plugging;
the main element symbols are as follows:
the drilling rod 1, the net rack outlet 11, the air bag outlet 12, the drilling bit 2, the telescopic net rack 3, the push rod 31, the support rod 32, the fixing structure 33, the fixing rod 34, the traction rod 35, the clamping groove 36, the air bag 4, the gas-liquid replacement structure 5, the inflatable grouting pipe 51, the exhaust and back grouting pipe 52, the water inrush channel 6, the cement mortar 7 and the rock wall 8.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 to 5, the movable water large channel water inrush drilling net rack, the air bag and the grouting integrated plugging device comprises a drill rod, a drill bit connected with the drill rod, a telescopic net rack arranged inside the drill rod, the air bag and a gas-liquid replacement structure. As shown in fig. 1 and 2, net rack outlets are respectively arranged on two sides of the drill rod, and an air bag outlet is arranged on the front surface of the drill rod.
As shown in fig. 3 and 4, the retractable net rack comprises a push rod and a support rod, the push rod is arranged inside the drill rod, the support rod is connected to two sides of the push rod through a torsion spring in a rotating manner, and the support rod is in a compressed state under the action of the inner wall of the drill rod (as shown in fig. 3). In this embodiment, the number of the supporting rods is 6, the supporting rods are respectively and symmetrically arranged on two sides of the push rod, and an iron net is connected between adjacent supporting rods on the same side. As shown in figure 4, when the push rod is pushed downwards to push the support rod to the outlet of the net rack, the limit of the inner wall of the drill rod is eliminated, and the support rod is opened under the action of the torsion spring to form the net rack. In this embodiment, set up branch into the telescopic link that the tip is the arrow point form, the rock wall that the branch tip of being convenient for can insert water channel suddenly further improves the stability of rack under high water pressure. Of course, the device also comprises a fixing structure for fixing the push rod, so that the telescopic net rack can be in a stable state when being closed and opened.
The air bag is folded inside the drill rod, the position relation between the air bag and the telescopic net rack is shown in figure 5, the telescopic net rack is positioned in the middle of the drill rod, and the air bag is positioned on one side of the telescopic net rack and is close to the outlet of the air bag.
The gas-liquid replacement structure comprises an inflatable grouting pipe and an exhaust slurry return pipe which are connected with the air bag. The device inflates the air bag through the inflating grouting pipe, and the air bag ejects the drill rod from the air bag outlet under the action of air pressure and rapidly expands to a shape matched with the cross section of the water inrush channel. And then grouting the air bag by using the inflatable grouting pipe, and discharging the gas in the air bag by using the exhaust slurry return pipe to finally form a plugging wall body matched with the section of the water inrush channel.
According to the embodiment of the device, a specific method for applying the device to water inrush of a flowing water large channel is also introduced, and the specific method comprises the following steps:
(1) as shown in fig. 8, the device is inserted into the bottom of the water inrush channel by drilling the hole on the ground;
(2) as shown in fig. 8 and 9, the push rod is pushed downwards, the support rods on the two sides of the push rod are pushed out to the net rack outlet, the support rods are opened, the arrow parts of the support rods are inserted into the rock wall of the water inrush channel, and a stable net rack is formed in the water inrush channel;
(3) as shown in fig. 10 and 11, the exhaust slurry return pipe is closed, the inflation grouting pipe is opened, the air bag is inflated, the air bag is opened through the air bag outlet under the action of air pressure, so that the air bag is expanded to be matched with the water inrush channel, and the water inrush channel plugging air bag attached to the net rack is formed;
(4) as shown in fig. 12 and 13, grouting the air bag by using the inflatable grouting pipe, simultaneously opening the exhaust grout return pipe, replacing the gas in the air bag with cement mortar, and stopping grouting when grout is discharged from the exhaust grout return pipe; when cement mortar is solidified to generate a stone solid, a filling wall for plugging a water inrush channel is finally formed, and the water inrush of the large channel is controlled within a local range;
(5) as shown in fig. 14, secondary plugging may be adopted depending on the plugging condition. And (4) directly using a common grouting drill rod for secondary plugging, inserting the grouting drill rod into the water inrush channel through ground drilling, and then directly grouting.
Example 2
As shown in fig. 1, 2, 6 and 7, the movable water large channel water inrush drilling net rack, the air bag and the grouting integrated plugging device comprises a drill rod, a drill bit connected with the drill rod, a telescopic net rack arranged inside the drill rod, the air bag and a gas-liquid replacement structure. As shown in fig. 1 and 2, net rack outlets are respectively arranged on two sides of the drill rod, and an air bag outlet is arranged on the front surface of the drill rod.
As shown in fig. 6 and 7, the telescopic net rack comprises a fixing rod, supporting rods and a control structure, wherein the fixing rod is fixedly arranged inside the drill rod, the supporting rods are arranged on two sides of the fixing rod through torsional springs in a rotating mode, and an iron net is connected between the adjacent supporting rods on the same side. The control structure comprises a push rod, a traction rod and a clamping groove, the push rod is arranged inside the fixed rod, one end of the traction rod is rotatably connected with the push rod, the other end of the traction rod is rotatably connected with the supporting rod and slidably connected with the supporting rod (the traction rod can slide along the length direction of the supporting rod and can rotate around the supporting rod), the clamping groove is formed in the fixed rod, and after the supporting rod extends out of the drilling rod, the push rod is clamped into the clamping groove to fix the push rod. As shown in fig. 6, in the initial state, under the action of the push rod and the traction rod, the torsion spring is in a compressed state, and the telescopic net rack is in a closed state. When the push rod is pushed downwards, one end of the traction rod rotates around the push rod, the other end of the traction rod slides along the support rod, and the support rod is expanded together with the torsion spring to form the net rack. Similarly, in order to improve the stability of the net rack, the supporting rods can be set to be telescopic rods, and the supporting rods are opened and inserted into the rock wall of the water inrush channel under the triggering of the traction rods.
The air bag is folded inside the drill rod, the position relation between the air bag and the telescopic net rack is shown in figure 5, the telescopic net rack is positioned in the middle of the drill rod, and the air bag is positioned on one side of the telescopic net rack and is close to the outlet of the air bag.
The gas-liquid replacement structure comprises an inflatable grouting pipe and an exhaust slurry return pipe which are connected with the air bag. The device inflates the air bag through the inflating grouting pipe, and the air bag ejects the drill rod from the air bag outlet under the action of air pressure and rapidly expands to a shape matched with the cross section of the water inrush channel. And then grouting the air bag by using the inflatable grouting pipe, and discharging the gas in the air bag by using the exhaust slurry return pipe to finally form a plugging wall body matched with the section of the water inrush channel.
According to the embodiment of the device, a specific method for applying the device to water inrush of a flowing water large channel is also introduced, and the specific method comprises the following steps:
(1) as shown in fig. 8, the device is inserted into the bottom of the water inrush channel by drilling the hole on the ground;
(2) as shown in fig. 8 and 9, the push rod is pushed downwards, the push rod is clamped into the clamping groove, the support rod is opened under the action of the push rod, the traction rod and the torsion spring, the arrow part of the support rod is inserted into the rock wall of the water inrush channel, and a stable net rack is formed in the water inrush channel;
(3) as shown in fig. 10 and 11, the exhaust slurry return pipe is closed, the inflation grouting pipe is opened, the air bag is inflated, the air bag is opened through the air bag outlet under the action of air pressure, so that the air bag is expanded to be matched with the water inrush channel, and the water inrush channel plugging air bag attached to the net rack is formed;
(4) as shown in fig. 12 and 13, grouting the air bag by using the inflatable grouting pipe, simultaneously opening the exhaust grout return pipe, replacing the gas in the air bag with cement mortar, and stopping grouting when grout is discharged from the exhaust grout return pipe; when cement mortar is solidified to generate a stone solid, a filling wall for plugging a water inrush channel is finally formed, and the water inrush of the large channel is controlled within a local range;
as shown in fig. 14, secondary plugging may be adopted depending on the plugging condition. And (4) directly using a common grouting drill rod for secondary plugging, inserting the grouting drill rod into the water inrush channel through ground drilling, and then directly grouting.
The device and the method are simple and convenient, have high flexibility, and are suitable for quickly plugging a large channel with high water pressure, large flow and large flowing water.
The integrated plugging device and method for the water inrush drilling net rack, the air bag and the grouting of the flowing water large channel provided by the invention are described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. Move big passageway gushing water drilling rack, gasbag, slip casting integration plugging device, including the drilling rod, with the drill bit that the drilling rod is connected, its characterized in that: net rack outlets are respectively arranged on two sides of the drill rod, and an air bag outlet is arranged on the front surface of the drill rod; the device also comprises a telescopic net rack, an air bag and a gas-liquid replacement structure which are arranged in the drill rod, wherein the net rack can extend out of the drill rod through an outlet of the net rack to form a net rack together with the drill rod; the gas-liquid replacement structure can inflate, inject and exhaust the air bag; the air bag is opened from the air bag outlet under the inflating action of the gas-liquid replacement structure and is expanded to be matched with the cross section of the water inrush channel to form the inflated air bag attached to the net rack, and the inflated air bag replaces gas in the air bag with cement mortar under the grouting and exhausting actions of the gas-liquid replacement structure.
2. The integrated plugging device of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 1, characterized in that: the flexible rack includes dead lever, branch, control structure, the dead lever is fixed to be set up inside the drilling rod, branch passes through torsional spring pivoted setting and is in the dead lever both sides, be connected with the net between the adjacent branch, start control structure, branch is outside stretching out the drilling rod through the rack export under the effect of torsional spring and control structure, and formation rack is opened to branch.
3. The integrated plugging device of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 2, characterized in that: the control structure comprises a push rod, a traction rod and a clamping groove, the push rod is arranged in the fixed rod, one end of the traction rod is rotatably connected with the push rod, and the other end of the traction rod is rotatably and slidably connected with the supporting rod; the clamping groove is arranged on the fixed rod and used for fixing the push rod after the support rod extends out of the drill rod; when the push rod is pushed downwards, one end of the traction rod rotates around the push rod, and the other end of the traction rod slides along the support rod to prop open the support rod together with the torsion spring.
4. The integrated plugging device of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 1, characterized in that: the telescopic net rack comprises a push rod and support rods, the push rod is arranged inside the drill rod, the support rods are rotatably connected to two sides of the push rod through the torsion springs, and a net is connected between every two adjacent support rods; branch is in compression state under the effect of drilling rod inner wall, when pushing away the push rod downwards along the drilling rod, pushes away branch extremely when the rack export, branch is opened and is formed the rack.
5. The integrated plugging device of the water-moving large-channel water-bursting drilling net rack, the air bag and the grouting according to any one of claims 1 to 4, characterized in that: the supporting rod is a telescopic rod, and the end part of the supporting rod is in an arrow shape.
6. The integrated plugging device of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claims 1-4, characterized in that: the gas-liquid replacement structure comprises an inflatable grouting pipe and an exhaust slurry return pipe which are respectively connected with the air bag.
7. The dynamic water large channel water inrush drilling rack, air bag and grouting integrated plugging method as claimed in claims 1-6, characterized in that: the method comprises the following steps:
(1) drilling a hole on the ground, and inserting the device into the bottom of the water inrush channel;
(2) opening the telescopic net racks through the net rack outlets on the two sides of the drill rod so as to form a net-shaped longitudinal and transverse support, namely a net rack, in the water inrush channel;
(3) inflating the air bag through the air-liquid replacement structure, and opening the air bag through an air bag outlet to enable the air bag to expand to be matched with the section of the water inrush channel, so that the water inrush channel plugging air bag attached to the net rack is formed;
(4) and (3) injecting cement mortar into the plugging air bag by using the gas-liquid replacement structure to replace gas in the air bag, and finally forming a filling wall body for plugging the water inrush channel after the cement mortar is solidified to generate a stone solid, so that the water inrush of the large channel is controlled in a local range.
8. The integrated plugging method of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 7, characterized in that: and (5) performing secondary plugging on the side with water flow, inserting a grouting drill rod into the water inrush channel through ground drilling, and then directly performing grouting.
9. The integrated plugging method of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 7, characterized in that: and (3) in the step (2), the push rod is vertically pushed downwards, and the support rods on two sides of the push rod are pushed out to the net rack outlet, and the support rods are opened to form the net rack.
10. The integrated plugging method of the water-moving large-channel water-inrush drilling net rack, the air bag and the grouting according to claim 7, characterized in that: in the step (3), the exhaust slurry return pipe is closed, the inflation grouting pipe is opened, the air bag is inflated, and the air bag is opened through an air bag outlet under the action of air pressure; when the air bag expands to be matched with the water bursting channel, grouting the air bag by using the inflatable grouting pipe, and simultaneously opening the exhaust grout returning pipe to replace the gas in the air bag; and stopping grouting when the slurry is discharged from the exhaust slurry return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982684A (en) * | 2021-11-02 | 2022-01-28 | 中煤科工集团西安研究院有限公司 | Combined auxiliary roof connecting device and method for rapid closure of water passing roadway |
| CN114277851A (en) * | 2022-01-11 | 2022-04-05 | 安徽隆润高分子材料有限公司 | Quick stagnant water gasbag under tunnel or piping lane emergency state |
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2020
- 2020-10-13 CN CN202011090520.8A patent/CN112177638A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113982684A (en) * | 2021-11-02 | 2022-01-28 | 中煤科工集团西安研究院有限公司 | Combined auxiliary roof connecting device and method for rapid closure of water passing roadway |
| CN113982684B (en) * | 2021-11-02 | 2023-10-27 | 中煤科工集团西安研究院有限公司 | Combined auxiliary roof connecting device and method for rapid closure of water passing tunnel |
| CN114277851A (en) * | 2022-01-11 | 2022-04-05 | 安徽隆润高分子材料有限公司 | Quick stagnant water gasbag under tunnel or piping lane emergency state |
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