CN113266302A - Double-liquid grouting hole packer - Google Patents
Double-liquid grouting hole packer Download PDFInfo
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- CN113266302A CN113266302A CN202110601095.2A CN202110601095A CN113266302A CN 113266302 A CN113266302 A CN 113266302A CN 202110601095 A CN202110601095 A CN 202110601095A CN 113266302 A CN113266302 A CN 113266302A
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- Prior art keywords
- pipeline
- sealing material
- shell
- hole
- positioning piece
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/134—Bridging plugs
Abstract
The invention discloses a double-liquid grouting hole packer, and belongs to the field of grouting. It includes: a capsule plug portion, the capsule plug portion comprising: the pipeline connecting device comprises a first shell made of elastic materials, and a first pipeline and a second pipeline which are positioned in the first shell; the first pipeline and the second pipeline are respectively used for conveying a first hole sealing material and a second hole sealing material; the stirring and mixing part comprises a second shell with openings at two ends and a stirring rod positioned in the second shell, wherein a first positioning piece and a second positioning piece are respectively arranged at two ends of the stirring rod, and through holes are formed in the first positioning piece and the second positioning piece; and an opening at one side of the second shell is used for inserting a first pipeline and a second pipeline which penetrate out of the capsule plug part. The invention solves the problem that the unreasonable structure of the existing hole packer causes the solidification of the hole packer and the polyurethane material in the hole after the grouting is finished.
Description
Technical Field
The invention relates to the field of grouting, in particular to a double-liquid grouting hole packer.
Background
The double-liquid grouting is a conventional operation in engineering, and a cavity and a crack are filled through the mixing reaction of two components, and common double-liquid component materials comprise double-liquid polyurethane, water glass, cement and the like. Two-liquid polyurethanes, such as malisan, rocco, etc., are low viscosity, two-component synthetic polymeric materials that expand and foam in a short time when the two component materials meet to form a cellular network elastomer with a certain strength. Based on the characteristics, the material is widely applied to plugging coal-rock wall cracks under coal mines so as to solve the engineering problems of air leakage and water seepage of the coal-rock wall, reinforcement of the coal-rock wall to avoid instability and the like.
When the coal rock wall has cracks, in order to ensure the strength of the coal rock wall or avoid air leakage and water seepage, the conventional method is to construct one or more drill holes on the coal rock wall, send the hole packer into the drill hole by a long rod with a proper depth, inject the double-liquid polyurethane material into the hole by a double-liquid grouting pump, and since the two materials are generally mixed when entering the hole packer, the hole packer and the polyurethane material in the hole have undergone chemical reaction and solidification after grouting operation. The hole packer is damaged by the solidified polyurethane material, and the hole packer has no value of reutilization and increases the engineering cost. When the coal rock wall crack occurs at a plurality of depths, sequential grouting in sections is needed to ensure the effect of the crack, and because the hole packer and the grouting pipe are consolidated in the drill hole, no method is available for realizing the crack in the same drill hole, and the grouting reinforcement requirements at different depths can be met by constructing more drill holes.
Disclosure of Invention
The invention aims to solve the technical problem that the unreasonable structure of the existing hole packer causes the solidification of polyurethane materials in the hole packer and the hole after the grouting is finished.
In order to solve the technical problems, the invention provides the following technical scheme:
a dual fluid grouting hole packer, comprising: a capsule plug portion, the capsule plug portion comprising: the pipeline connecting device comprises a first shell made of elastic materials, and a first pipeline and a second pipeline which are positioned in the first shell; the first pipeline and the second pipeline are respectively used for conveying a first hole sealing material and a second hole sealing material; the stirring and mixing part comprises a second shell with openings at two ends and a stirring rod positioned in the second shell, wherein a first positioning piece and a second positioning piece are respectively arranged at two ends of the stirring rod, and through holes are formed in the first positioning piece and the second positioning piece; the opening at one side of the second shell is used for inserting a first pipeline and a second pipeline which penetrate out of the capsule plug part; and the first hole sealing material in the first pipeline and the second hole sealing material in the second pipeline pass through the area between the first positioning piece and the second positioning piece, are stirred and mixed by the stirring rod and are ejected along the opening on the other side of the second shell.
In some embodiments of the present invention, the second housing includes a main body and a blocking portion connected to an outer wall of the main body, and an outer diameter of the blocking portion is larger than an outer diameter of the first housing.
In some embodiments of the present invention, the blocking portion includes an annular outer rim integrally formed on the main body portion, and an outer diameter of the annular outer rim is larger than an outer diameter of the first housing.
In some embodiments of the present invention, the blocking portion further includes a blocking sleeve, one end of the blocking sleeve is connected to the annular surface of the annular outer edge, and the other end of the blocking sleeve extends in a direction away from the stirring and mixing portion.
In some embodiments of the invention, the annular outer rim is connected to an end of the main body, and the length of the barrier sleeve is smaller than that of the main body.
In some embodiments of the invention, the annular outer rim has a decreasing wall thickness in a direction away from the capsule plug.
In some embodiments of the present invention, a third pipeline is further disposed in the first housing, an input port of the third pipeline is communicated with the first hole sealing material supply unit, an output port of the third pipeline is communicated with the first housing, the first pipeline is provided with a first one-way valve, the input port of the second pipeline is communicated with the second hole sealing material supply unit, and an output port of the second pipeline is inserted into an opening of the second housing.
In some embodiments of the present invention, the capsule plug further includes a first fixing member and a second fixing member for closing openings at two sides of the first housing, the first pipeline and the second pipeline are disposed on the first fixing member in a penetrating manner, and the second pipeline and the third pipeline are disposed on the second fixing member in a penetrating manner.
In some embodiments of the present invention, the first sealing material supply unit includes a first material storage tank and a first supply pump, the first supply pump and the third pipeline are communicated through a first supply pipe, and a relief valve and a second check valve are provided on the first supply pipe.
In some embodiments of the present invention, the second sealing material supply unit includes a second material storage tank and a second supply pump, and the second supply pump and the third pipeline are communicated through a second supply pipe.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
in the double-liquid grouting hole packer provided by the invention, a first hole sealing material in the first pipeline and a second hole sealing material in the second pipeline enter a second shell of the stirring and mixing part along the capsule plug part, are mixed and chemically reacted, are finally ejected along an opening on the other side of the second shell, so that a crack in a drill hole is plugged, and after plugging is finished, the first pipeline and the second pipeline are pulled out of the stirring and mixing part. Because first hole sealing material and second hole sealing material carry out mixing reaction in being located stirring mixing portion region, avoid the high-pressure slip casting liquid after the mixture to flow to capsule stopper portion, guaranteed the intact of capsule stopper portion. When next grouting is carried out, only the stirring and mixing part is needed to be arranged on the capsule plug part, so that the engineering cost is reduced, and the purposes of repeated use of the hole packer and multi-depth sectional grouting of the same drilling hole are achieved.
Drawings
The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of one embodiment of a dual-fluid grouting hole packer of the present invention;
FIG. 2 is a schematic structural view of one embodiment of a stirring and mixing portion of the dual-fluid grouting hole packer of the present invention;
FIG. 3 is a schematic structural diagram of one embodiment of a capsule plug portion in the dual-fluid grouting hole packer of the invention;
FIG. 4 is a sectional structure diagram of the first casing sidewall in the double-fluid grouting hole packer of the present invention;
FIG. 5 is a schematic cross-sectional view of a first connection sleeve and a second connection sleeve in the two-fluid grouting hole packer of the present invention;
fig. 6 is a structural schematic diagram of the double-liquid grouting hole packer applied to a coal rock wall for multi-depth sectional grouting.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 and fig. 6 show a specific embodiment of a two-fluid grouting hole packer provided by the present invention, which includes:
a capsule plug part 10 for plugging a drilled hole at the time of grouting, an agitation mixing part 20 for agitating and mixing two kinds of grouting materials at the time of grouting, and a supply part 30 for supplying two kinds of grouting materials.
Wherein the capsule plug portion 10 comprises: a first housing 11 made of an elastic material and a first duct 12 and a second duct 13 located inside said first housing 11; the first pipeline 12 and the second pipeline 13 are used for conveying a first hole sealing material and a second hole sealing material; the stirring and mixing part 20 comprises a second housing 21 with openings at two ends and a stirring rod 22 positioned in the second housing 21, wherein a first positioning piece 23 and a second positioning piece 24 are respectively arranged at two ends of the stirring rod 22, and through holes are arranged on the first positioning piece 23 and the second positioning piece 24; the second housing 21 has an opening at one side for inserting the first and second pipes 12 and 13 extending out of the capsule plug 10.
After entering the second casing 21 of the stirring and mixing portion 20 along the capsule plugging portion 10, the first hole sealing material in the first pipeline 12 and the second hole sealing material in the second pipeline 13 pass through the area between the first positioning piece 23 and the second positioning piece 24, are mixed under the stirring action of the stirring rod 22 and are subjected to chemical reaction, and finally are ejected out along the opening on the other side of the second casing 21, so that the crack in the drilled hole is plugged, the usage amount of the plugging material of the hole sealing device is determined according to the size of the crack, and after plugging is finished, the first pipeline 12 and the second pipeline 13 are pulled out from the stirring and mixing portion 20. Because the first hole sealing material and the second hole sealing material are subjected to mixing reaction in the area located in the stirring and mixing part 20, the mixed high-pressure grouting liquid is prevented from flowing to the capsule plug part 10, and the capsule plug part 10 is ensured to be intact. When next grouting is carried out, only the stirring and mixing part 20 is needed to be arranged on the capsule plug part 10, and the engineering cost is reduced. The purposes of repeated use of the hole packer and multi-depth sectional grouting of the same drilling hole are achieved.
The following detailed description will be made of the structure and connection relationship of the three parts of the stirring and mixing section 20, the capsule stopper section 10 and the supply section 30
< stirring/mixing section 20>
As shown in fig. 2, in the stirring and mixing portion 20, the second casing 21 includes a main body portion 21a, the main body portion 21a is formed into a cylindrical shape with two open ends, the stirring rod 22 is installed inside the main body portion 21a, the stirring rod 22 includes a rod body and a helical blade arranged on the rod body, the stirring rod 22 is positioned inside the main body portion 21a through a first positioning piece 23 and a second positioning piece 24 which are positioned at two ends, the first positioning piece 23 and the second positioning piece 24 are plate bodies with outer diameters matched with the inner wall of the main body portion 21a, the first positioning piece 23 and the second positioning piece 24 are provided with connecting holes penetrating through the rod body of the stirring rod 22, and the stirring rod 22 can rotate relative to the first positioning piece 23 and the second positioning piece 24. Because the first positioning part 23 and the second positioning part 24 are provided with through holes, after the first hole sealing material and the second hole sealing material flow out from the output ports of the first pipeline 12 and the second pipeline 13, the stirring rod 22 is driven by the pressure liquid to rotate, so that the two-component material is fully mixed.
The second housing 21 further includes a blocking portion connected to an outer wall of the body portion 21a, the blocking portion being configured to block the sealing liquid ejected from the second housing 21 from penetrating into the capsule plug portion 10, wherein an outer diameter of the blocking portion is larger than an outer diameter of the first housing 11, a portion of the mixed sealing liquid ejected from the second housing 21 may be turned back when the mixed sealing liquid is excessive, and the outer diameter of the blocking portion is larger than an outer diameter of the first housing 11 of the capsule plug portion 10, which may effectively block the sealing liquid.
The structure of the blocking part is not unique; in one embodiment, the blocking portion includes an annular outer rim 21b integrally formed on the main body portion 21a, and the outer diameter of the annular outer rim 21b is larger than the outer diameter of the first housing 11.
In another embodiment, the blocking portion includes an annular outer edge 21b integrally formed on the main body portion 21a and a blocking sleeve 21c connected to the annular outer edge 21b, and one end of the blocking sleeve 21c is connected to an annular surface of the annular outer edge 21b, and the other end extends away from the stirring and mixing portion 20.
The second casing 21 is made of butadiene-acrylonitrile rubber, and the material has elasticity and sufficient hardness. When the second casing 21 is under the pressure of the injected high-pressure mixed hole sealing liquid, the blocking sleeve body 21c will generate limited expansion deformation, so that the second casing 21 and the inner wall of the drilled hole are fully extruded, and the high-pressure mixed hole sealing material is effectively blocked from permeating into the capsule plug portion 10.
More specifically, the annular outer rim 21b is connected to an end of the main body 21a, and the length of the stop sleeve 21c is smaller than that of the main body 21 a. The influence of the overlong barrier sleeve body 21c on the permeation of the hole sealing material to the crack after the hole sealing material is ejected is avoided. The wall thickness of the annular outer rim 21b decreases gradually in a direction away from the capsule plug portion 10. Namely, the wall thickness of the opening side of the blocking sleeve body 21c is smaller than the wall thickness of the connecting end of the blocking sleeve body 21c and the annular outer edge 21b, so that the blocking sleeve body 21c can generate limited deformation, and the blocking sleeve body 21c and the inner wall of the drill hole can be fully extruded.
The stirring and mixing part 20 fully stirs and mixes the conveyed two-component high polymer material by rotating the stirring rod 22, so as to ensure the foaming and solidification effects of the material; meanwhile, the blocking part can deform under the high-pressure action of the two-component high polymer material, so that the high polymer material is blocked from flowing to the capsule plug part 10, and the high polymer material is prevented from contacting the capsule plug part 10.
< Capsule stopper portion 10>
One embodiment of the capsule plug 10 is shown in figure 3. As the capsule plug 10 needs to plug a drilled hole during grouting, the first shell 11 needs to be capable of being tightly matched with the drilled hole, and the first shell 11 is made of a composite material layer, as shown in fig. 4, the composite material layer comprises a first rubber layer 11a, a metal tensile net layer 11b, a polyvinyl butyral layer 11c and a second rubber layer 11d which are sequentially arranged, wherein the first rubber layer 11a serves as an outer shell of the first shell 11, the second rubber layer 11d serves as an inner shell of the first shell 11, the metal wires of the metal tensile net layer 11b have a diameter of 2mm and are rhombic grids, and the side length of each rhombus is 10 mm; the four layers of materials are adhered into a whole through glue, so that the separation of the layers is avoided, and the pressure of not less than 5PMa can be borne under the limit condition of the inner wall of the drilled hole without damage. Because the first shell 11 is made of multiple layers of materials with high strength and good flexibility, the structural strength and elasticity of the first shell are ensured, and the first shell can be repeatedly utilized.
In order to ensure that the first casing 11 is tightly fitted with the borehole and is fixed on the borehole without moving during grouting, a third pipeline 14 is further arranged in the first casing 11, an input port of the third pipeline 14 is communicated with a first hole sealing material supply unit, an output port of the third pipeline 14 is communicated with the first casing 11, and the first hole sealing material can enter the first casing 11 along the third pipeline 14 to fill the first casing 11, so that the first casing 11 can be firmly fixed on the borehole. Wherein, the first pipeline 12 is provided with a first one-way valve 15, and after the first casing 11 is filled with the first hole sealing material, when the internal liquid pressure exceeds the opening pressure of the first one-way valve 15, the first hole sealing material can be injected into the stirring and mixing part 20 through the first pipeline 12. An input port of the second pipeline 13 is communicated with the second hole sealing material supply unit, and an output port of the second pipeline 13 is inserted into an opening of the second casing 21.
In the capsule plug 10, the second pipeline 13 is entirely penetrated through the first casing 11, and the first casing 11 is filled with the first hole sealing material through the output port of the third pipeline 14, so that the first hole sealing material and the second hole sealing material can be isolated, and the first casing 11 can be tightly attached to the inner wall of the drill hole.
Because the stirring and mixing part 20 has a tendency of moving towards the capsule plug part 10 under the action of the high-pressure mixed hole sealing liquid, but the first shell 11 of the capsule plug is firmly fixed at the depth of the drilled hole and does not move, the stirring and mixing part 20 and the capsule plug part 10 are extruded more and more tightly, so that the sealing performance of the connection of the first pipeline 12 and the second pipeline 13 with the second shell 21 is ensured, the first shell 11 is also ensured to be fully attached to the inner wall of the drilled hole, and the mixed hole sealing liquid is prevented from flowing towards the capsule plug part 10.
Specifically, the capsule plugging portion 10 further includes a first fixing member 16 and a second fixing member 17 located at openings on two sides of the first housing 11, and the first fixing member 16 and the second fixing member 17 are used for sealing the openings on two sides of the first housing 11, wherein the first fixing member 16 is used for penetrating the first pipeline 12 and the second pipeline 13, the second fixing member 17 is used for penetrating the second pipeline 13 and the third pipeline 14, and more specifically, the third pipeline 14 coincides with an axis of the first pipeline 12.
Specifically, as shown in fig. 5, the capsule plug 10 further includes a first connecting sleeve 18 located at an end of the first fixing member 16 and a second connecting sleeve 19 located at an end of the second fixing member 17, the first connecting sleeve 18 is inserted into the first pipe 12 and the second pipe 13, the first connecting sleeve 18 is inserted into an opening of the second housing 21, and the second connecting sleeve 19 is inserted into the second pipe 13 and the third pipe 14.
< supply section 30>
As shown in fig. 1 and 6, the supply portion 30 includes a first sealing material supply unit and a second sealing material supply unit, wherein the first sealing material supply unit includes a first material storage tank 31 and a first supply pump, the first supply pump communicates with the third pipeline 14 through a first supply pipe 33, the second sealing material supply unit includes a second material storage tank 32 and a second supply pump, and the second supply pump communicates with the third pipeline 14 through a second supply pipe 34.
Specifically, the first supply pump and the second supply pump may be two independent supply pumps, and a two-in and two-out supply pump 35 may also be adopted. The first supply pipe 33 and the third pipe 14 and the second supply pipe 34 and the second pipe 13 are connected by quick couplings 36.
A pressure relief valve 37 and a second one-way valve 38 are arranged on the first supply pipe 33, and when grouting works, when the pressure of the first supply pipe 33 reaches the opening pressure of the second one-way valve 38, the first hole sealing material flows into the first housing 11 along the third pipeline 14 under the pressure action of the first supply pump 32, and then enters the stirring and mixing part 20 through the first pipeline 12 to be stirred and mixed with the second hole sealing material; after the completion of the grouting operation, the relief valve 37 is opened to release the pressure of the first casing 11, and the capsule stopper 10 can be removed and reused.
Two one-way valves are arranged in a liquid flow channel of the first hole sealing material, so that the first shell 11 can expand under the pressure action of the first hole sealing material, the stability of the internal pressure of the first shell 11 is maintained under the pressure maintaining action of the first one-way valve 15 and the second one-way valve 38, the capsule plug is fixed in a drill hole, the pressure release valve 37 is opened after the grouting operation is finished, and the capsule plug part 10 can be quickly pulled out by eliminating the internal pressure of the first shell 11.
As shown in fig. 6, it is detected that four positions of the front 5m, 10m, 15m and 20m are affected by faults in the tunneling process of a certain coal mine, coal bodies are broken, and if the tunneling process is not processed in advance, the possibility of large-area roof fall exists. Before hole sealing is carried out on the hole sealing device, a drill hole is constructed right in front of a roadway, the hole sealing device can extend into the drill hole, grouting is carried out in a segmented and sequential mode from inside to outside, specifically, after a pipeline is connected, the hole sealing device enters a position about 20m of the drill hole, a pressure release valve 37 is ensured to be in a closed state, and then a first supply pump 32 and a second supply pump are started to start grouting. When the grouting pressure in the drill hole reaches 3MPa and the grouting pump is not started any more, the grouting pump is closed, after waiting for 5 minutes, the pressure relief valve 37 is opened to relieve the pressure, and then the capsule plug part 10 is pulled out. And installing a new stirring and mixing part 20 on the capsule plug part 10, then lowering the capsule plug part to the position about 15m of the drilled hole again, repeating the process, and grouting and filling the gap.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (10)
1. A kind of biliquid slip casting hole packer, characterized by that, it includes:
a capsule plug portion, the capsule plug portion comprising: the pipeline connecting device comprises a first shell made of elastic materials, and a first pipeline and a second pipeline which are positioned in the first shell; the first pipeline and the second pipeline are respectively used for conveying a first hole sealing material and a second hole sealing material;
the stirring and mixing part comprises a second shell with openings at two ends and a stirring rod positioned in the second shell, wherein a first positioning piece and a second positioning piece are respectively arranged at two ends of the stirring rod, and through holes are formed in the first positioning piece and the second positioning piece; the opening at one side of the second shell is used for inserting a first pipeline and a second pipeline which penetrate out of the capsule plug part;
and the first hole sealing material in the first pipeline and the second hole sealing material in the second pipeline pass through the area between the first positioning piece and the second positioning piece, are stirred and mixed by the stirring rod and are ejected along the opening on the other side of the second shell.
2. The dual-fluid grouting hole packer of claim 1, wherein the second casing comprises a main body portion and a blocking portion connected to an outer wall of the main body portion, and an outer diameter of the blocking portion is larger than an outer diameter of the first casing.
3. The dual-fluid grouting hole packer of claim 2, wherein the blocking portion comprises an annular rim integrally formed on the body portion, the annular rim having an outer diameter greater than an outer diameter of the first casing.
4. The dual-fluid grouting hole packer of claim 3, wherein the blocking portion further comprises a blocking sleeve body, one end of the blocking sleeve body is connected to the annular surface of the annular outer edge, and the other end of the blocking sleeve body extends away from the stirring and mixing portion.
5. The dual-fluid grouting hole packer of claim 4, wherein the annular outer rim is connected to an end of the body portion, and the length of the barrier sleeve is less than the length of the body portion.
6. A dual fluid slurry perforator as claimed in claim 4 wherein the wall thickness of the annular rim decreases in a direction away from the capsule plug portion.
7. The double-liquid grouting hole packer as claimed in claim 1, wherein a third pipeline is further arranged in the first casing, an input port of the third pipeline is communicated with the first hole sealing material supply unit, an output port of the third pipeline is communicated with the first casing, the first pipeline is provided with a first one-way valve, an input port of the second pipeline is communicated with the second hole sealing material supply unit, and an output port of the second pipeline is inserted into an opening of the second casing.
8. The double-fluid grouting hole packer as claimed in claim 7, wherein the capsule plug further comprises a first fixing member and a second fixing member for closing openings at two sides of the first casing, the first pipeline and the second pipeline are arranged on the first fixing member in a penetrating manner, and the second pipeline and the third pipeline are arranged on the second fixing member in a penetrating manner.
9. The dual-fluid grouting hole packer according to claim 7, wherein the first hole sealing material supply unit comprises a first material storage tank and a first supply pump, the first supply pump is communicated with the third pipeline through a first supply pipe, and a pressure relief valve and a second one-way valve are arranged on the first supply pipe.
10. The double-fluid grouting hole packer according to claim 9, wherein the second hole packing material supply unit includes a second material storage tank and a second supply pump, and the second supply pump communicates with the third pipeline through a second supply pipe.
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| CN113266302B (en) | 2022-11-18 |
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