CN110779407B - Hole plugging device and method for high-pressure gas rock breaking of tunnel - Google Patents
Hole plugging device and method for high-pressure gas rock breaking of tunnel Download PDFInfo
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- CN110779407B CN110779407B CN201911064828.2A CN201911064828A CN110779407B CN 110779407 B CN110779407 B CN 110779407B CN 201911064828 A CN201911064828 A CN 201911064828A CN 110779407 B CN110779407 B CN 110779407B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/08—Tamping methods; Methods for loading boreholes with explosives; Apparatus therefor
- F42D1/18—Plugs for boreholes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
- F42D3/04—Particular applications of blasting techniques for rock blasting
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Abstract
The invention discloses a hole plugging device and a hole plugging method for tunnel high-pressure gas rock breaking, which relate to the technical field of hard rock breaking, and comprise a plugging pipe and a plugging rod; a through hole with two through ends is formed in the packing tube, the outer diameter of the packing tube is smaller than the aperture of the cracking hole, and the length of the packing tube is larger than the depth of the cracking hole; a horizontal discharging groove is formed in the port of one end of the packing tube, a packing tube guiding groove is formed in the position, close to the handheld end, of the discharging groove and from the handheld end of the packing tube to the port of the handheld end of the packing tube, and a packing rod guiding groove is formed in the side wall of the packing rod; the length of the filling rod is larger than that of the filling pipe, the outer diameter of the filling rod is smaller than the aperture of the filling pipe, and the width of the guide groove of the filling rod is larger than that of the guide groove of the filling pipe. The method for plugging the hole of the tunnel high-pressure gas rock breaking based on the plugging device solves the technical problems of difficult grouting and hole plugging operation, non-compact plugging, poor plugging quality, poor rock breaking effect, serious material plugging material waste and the like in the safe and efficient rock breaking implementation process of the tunnel by using the high-pressure gas.
Description
Technical Field
The invention relates to the technical field of hard rock breaking, in particular to a hole plugging device and method for tunnel high-pressure gas rock breaking.
Background
The high pressure gas expansion rock breaking technology is one new kind of environment friendly rock breaking technology and belongs to the field of non-explosive blasting rock breaking technology. It is different from traditional explosive blasting technology, and is characterized by that it utilizes physical or non-violent chemical mode to produce high-pressure gas, and in the rock body a high-pressure gas expansion pipe is mounted, and a trigger (point) at the bottom of expansion pipe is excited by means of trigger device, so that the high-pressure gas in the expansion pipe can be instantaneously released so as to expand and apply work to peripheral medium to break it. The rock breaking technology by high-pressure gas expansion method does not belong to the category of blasting in real sense, but only carries out harmless rock breaking through the action of high-pressure gas. Therefore, the rock breaking technology does not affect the application range of the explosive blasting because the explosive blasting is restricted and controlled by relevant policies. The high-pressure gas expansion rock breaking technology has the characteristics of good safety performance, less pollution, low noise, small vibration, easy control and the like, has better applicability than explosive blasting under many conditions, has good application prospect, and can be widely applied to the fields of highway engineering, railway engineering, municipal engineering, mountain development, mine exploitation and the like.
The rock breaking method and technique by high pressure gas expansion method is to crack and move the rock by gas action. Therefore, the rock breaking method has extremely high requirements on the sealing quality of the fractured hole, so that the pressure in the hole is kept in a high-pressure state for a relatively long time, and the gas wedge and throwing action of high-pressure gas are increased.
The existing blast hole filling material used for high-pressure gas blasting of the tunnel is a plugging material, and a fast-setting special cement material, such as various grouting materials, plugging king and the like in the market, is usually selected. Like the material of the leakage stopping king, the material can be quickly solidified, the density and the strength of the material are far higher than those of the existing common concrete, the material can be initially solidified after being mixed for 1 minute, and can be finally solidified for 3-4 minutes, and the compressive strength can reach more than 25MPa after 1 day. In view of the rapid setting of such materials, it is not possible to automatically plug them using a grouting machine or the like. The current stuffing methods are essentially manual stuffing. The specific operation steps are as follows: firstly, manually stirring the material and water according to a certain proportion, manually filling the uniformly stirred plugging material to the position of a cracking hole, then filling the plugging material into the bottom of the residual space of the cracking hole by using a long rod with the diameter slightly smaller than that of the cracking hole, and repeating the steps until the residual cracking hole space is filled with the plugging material.
The existing plugging material plugging and cracking method has the following defects: the operation is difficult, the filling is not compact, and the filling quality is poor, so that the rock breaking effect is poor, and the filling material waste is serious.
In the tunnel excavated by adopting the high-pressure gas expansion method, most of the fracturing holes are horizontal holes, and a small part of the fracturing holes slightly incline upwards or downwards, as shown in a tunnel fracturing hole distribution diagram of fig. 3. As shown in figure 1, 3 is an expansion pipe, 4 is an inflation pipe of the expansion pipe, one part of the inflation pipe extends out of the fracturing hole, 5 is the wall of the fracturing hole, and 6 is a conducting wire. In fig. 2, 7 is a long rod, and 8 is a plugging material which is uniformly stirred. The existing filling method is that the plugging material is stirred uniformly (at this time, the plugging material is in a viscous paste shape and has certain fluidity), then the plugging material is manually inserted into the cracking hole, and then the plugging material is pushed into the bottom by a long rod 7, and in the process, a large amount of material overflows from the cracking hole, as shown in fig. 2. In addition, the stock pushes the in-process of material push bottom, has a certain amount of material to be detained on causing cracked hole pore wall and stock, when waiting to take out the stock, a small amount of material can be taken out by the stock. One run is completed and only a small amount of plugging material is sent to the bottom of the fracturing hole. When the second operation is carried out, part of materials remained on the wall of the cracking hole and the long rod are solidified, so that the long rod can encounter larger resistance and even can not penetrate into the bottom when penetrating into the cracking hole again, and the phenomenon of incompact filling is caused. In addition, as can be seen from fig. 2, when the long rod is pushed into the cracking hole, the long rod is obstructed by the inflation tube of the expansion tube, even the inflation tube is extruded and bent, which increases difficulty for hole plugging operation, and may damage the lead wire, so that the expansion tube in the cracking hole cannot break rock due to incapability of triggering, and the whole rock breaking effect is affected.
Disclosure of Invention
The invention aims to provide a hole plugging device and a hole plugging method for tunnel high-pressure gas rock breaking, which solve the technical problems of difficult hole grouting and plugging operation, non-compact plugging, poor plugging quality, poor rock breaking effect, serious material plugging material waste and the like in the safe and efficient rock breaking implementation process of a tunnel by using high-pressure gas. In order to achieve the purpose, the invention provides the following scheme:
the invention provides a hole plugging device for tunnel high-pressure gas rock breaking, which comprises a plugging pipe and a plugging rod, wherein the plugging pipe is connected with the plugging rod through a pipeline; a through hole with two through ends is formed in the packing tube, the outer diameter of the packing tube is 4-8mm smaller than the aperture of the cracking hole, and the length of the packing tube is greater than that of the cracking hole; the utility model discloses a stopper pipe, including stopper pipe, filler pipe and filler rod lateral wall, filler pipe one end is handheld end, the port department of the filler pipe other end sets up horizontally blow-off groove, the blow-off groove is close to handheld end extremely set up the filler pipe guiding groove between the port department of the handheld end of filler pipe, the filler rod guiding groove has been seted up on the filler rod lateral wall, the length of filler rod is greater than the length of filler pipe, the external diameter of filler rod is less than the internal diameter of filling intraductal through-hole, the width of filler rod guiding groove is greater than the width of filler pipe guiding groove.
Optionally, the discharge chute is configured to be an axial section from a port of the filling pipe far away from the handheld end to a one-third node closest to the port in an axial direction, the axial section is perpendicular to a radial section of the filling pipe, and a length of the axial section from a bottommost portion of the filling pipe is two thirds of a diameter of the filling pipe.
Optionally, the position of the filling pipe guide groove is arranged on a symmetrical middle line of the discharge groove, the depth of the filling pipe guide groove is one third of the diameter of the filling pipe, the width of the filling pipe guide groove is 5-8mm, and the length of the filling pipe guide groove is two thirds of the length of the filling pipe.
Optionally, the length of the plugging rod is 1.3 times of the length of the plugging pipe, and the outer diameter of the plugging rod is 1mm smaller than the inner diameter of the plugging pipe.
Optionally, the depth of the filling rod guide groove is 1mm greater than that of the filling pipe guide groove; the width of the filling rod guide groove is 2mm larger than that of the filling pipe guide groove.
The invention also provides an eyelet plugging method for breaking rock by high-pressure gas in a tunnel based on the plugging device, which comprises the following steps:
1) drilling a cracking hole with a preset depth and a preset diameter according to blasting requirements, selecting the sizes of a packing pipe and a packing rod according to the size of the cracking hole, and determining the using amount of a plugging material;
2) mixing a plugging material required by the cracking, namely stirring 3.5kg-5kg of the plugging material and a certain amount of water, wherein the specific amount is determined according to the size of the cracking;
3) placing the expansion pipe at the bottom of the cracking hole, extending the inflation pipe of the expansion pipe out of the cracking hole, and then fully paving the uniformly mixed plugging material in a discharge groove at the front end of the plugging pipe;
4) pushing one end of the packing pipe, which is fully paved with the plugging material, into the bottom of the residual space of the fracturing hole, and enabling the gas filling pipe of the expansion pipe to penetrate through the guide groove of the packing pipe in the process of pushing the packing pipe into the fracturing hole;
5) aligning a guide groove of the filling rod with a guide groove of the filling pipe, nesting the guide groove of the filling rod on the guide groove of the filling pipe, and then inserting the filling rod into the filling pipe until the filling rod meets the resistance of the filled plugging material in the fracturing hole;
6) one hand presses the plugging rod, the other hand pulls the plugging pipe out of one third of the length of the part of the plugging pipe in the fracturing hole, and then the plugging pipe and the plugging rod are pulled out together;
7) paving the plugging material at the discharge groove of the filling pipe, pushing the filling pipe into the bottom of the residual space of the fracturing hole, enabling the inflation pipe of the expansion pipe to penetrate through the guide groove of the filling pipe in the process of pushing the filling pipe into the fracturing hole, rotating the filling pipe by 180 degrees, and repeating the operations 5) and 6) to fill the gap between the expansion pipe and the fracturing hole;
8) repeating the steps until the cracking holes are filled.
Compared with the prior art, the invention has the following technical effects:
the invention has good filling effect, and the filling material can extrude to fill the residual space of the cracked hole. The filling process is simple to operate and high in working efficiency, and the residual space of the fracturing hole can be filled up only by 2-3 times of operation. Substantially zero waste of plugging material can be achieved using the present invention for frac plugging. The influence of the inflation tube of the expansion tube can be avoided, and the operation process is easier. The filling of the cracking hole of the high-pressure gas rock breaking can be more full, the blocking quality is better, and the high-pressure gas rock breaking effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of an aperture of a filled expansion pipe;
FIG. 2 is a schematic diagram of a conventional process for plugging a hole in a tunnel by high-pressure gas rock breaking;
FIG. 3 is a schematic diagram of the distribution of the cracking holes on the tunnel face;
FIG. 4 is a front view of a packing tube of the apparatus for plugging a hole for breaking rock by high pressure gas in a tunnel according to the present invention;
FIG. 5 is a top view of a packing tube of the apparatus for plugging a hole for breaking rock by high pressure gas in a tunnel according to the present invention;
FIG. 6 is a cross-sectional view of the invention at the guide groove of the packing tube of the hole plugging device for high-pressure gas rock breaking in a tunnel;
FIG. 7 is a cross-sectional view of the discharge chute of the high pressure gas rock breaking hole plugging device for tunnels of the present invention;
FIG. 8 is a schematic view of the construction of a plugging rod of the apparatus for plugging the perforation for breaking rock by high-pressure gas in a tunnel according to the present invention;
FIG. 9 is a schematic view of a packing tube pushed into a fracture hole during the implementation of the method for plugging the perforation in high-pressure gas rock breaking in a tunnel according to the present invention;
FIG. 10 is a schematic view of a plugging rod being pushed into a plugging tube in the implementation of the method for plugging the perforation in the high-pressure gas rock breaking of the tunnel according to the present invention;
FIG. 11 is a schematic flow chart of the method for plugging the high-pressure gas rock-breaking hole of the tunnel according to the invention;
wherein, 1 is a filling pipe guiding groove, 2 is a discharging groove, 3 is an expansion pipe, 4 is an inflation pipe, 5 is a cracking hole wall, 6 is a lead, 7 is a long rod, 8 is a plugging material, 9 is a tunnel face, 10 is a cracking hole, 11 is a filling pipe, 12 is a filling rod and 13 is a filling rod guiding groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The invention aims to provide a hole plugging device and a hole plugging method for tunnel high-pressure gas rock breaking, which solve the technical problems of difficult hole grouting and plugging operation, non-compact plugging, serious material quantity waste and the like in the safe and efficient rock breaking implementation process of a tunnel by using high-pressure gas.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
In the existing traditional tunnel adopting high-pressure gas expansion method for rock breaking and tunneling, as shown in fig. 1-3, most of the cracking holes 10 on the tunnel face 9 of the tunnel are horizontal holes, and a small part of the cracking holes 10 slightly incline upwards or downwards, as shown in a distribution diagram of the cracking holes of the tunnel of fig. 3. The expansion pipe 3 is connected with the inflation pipe 4, one part of the inflation pipe 4 extends out of the cracking hole 10, the inflation pipe 4 is not contacted with the wall 5 of the cracking hole, two wires 6 are fixed on the outer wall of the inflation pipe 4 by an electric adhesive tape, one end of one wire 6 is connected with the lower end connecting structure of the expansion pipe 3, and then the wire extends out of the hole opening of the cracking hole along the outer wall of the inflation pipe 4; one end of another lead 6 is connected with the upper end connecting structure of the expansion pipe 3 and then extends out of the opening of the cracking hole along the outer wall of the inflation pipe 4. One end of the long rod 7 in figure 2 is provided with plugging materials 8 which are evenly stirred. The existing filling method is that the plugging material 8 is stirred uniformly, at the moment, the plugging material 8 is in a viscous paste shape and has certain fluidity, then the plugging material is manually inserted into the orifice of the cracking hole 10 and is pushed into the bottom by the long rod 7, and in the process, a large amount of the plugging material 8 overflows from the orifice of the cracking hole 10, as shown in figure 2. In addition, in the process that the long rod 7 pushes the plugging materials 8 into the bottom, a certain amount of the plugging materials 8 are retained on the hole wall of the cracking hole 10 and the long rod 7, and when the long rod 7 is pulled out, a small amount of the plugging materials 8 can be taken out by the long rod 7. One operation is completed and only a small amount of plugging material 8 is sent to the bottom of the fracturing hole 10. When the second operation is carried out, part of materials remained on the wall of the cracking hole 10 and the long rod 7 are solidified, so that the long rod 7 can encounter larger resistance and even can not penetrate into the bottom when penetrating into the cracking hole 10 again, and the phenomenon that the cracking hole is not tightly filled is caused. In addition, as can be seen from fig. 2, the long rod 7 is hindered by the expansion pipe 3 and the inflation pipe 4 when being pushed into the cracking hole 10, and even the inflation pipe 4 is extruded and bent, the lead 6 may be damaged, so that the expansion pipe in the cracking hole cannot be triggered to break rock, the whole rock breaking effect is affected, and difficulty is also added to the hole plugging operation.
In view of the above-mentioned drawbacks of the prior art methods and apparatuses, the present invention provides an apparatus for plugging a hole in a tunnel for breaking rock by high-pressure gas, as shown in fig. 4-8, comprising a plugging tube 11 and a plugging rod 12, both made of PVC. Two ends of a packing tube 11 are communicated, the length of the packing tube 11 is not less than that of a cracking hole 10, the outer diameter of the packing tube 11 is 5-8mm smaller than the diameter of the cracking hole 10, an axial section is reserved at one end opening of the packing tube 11, the axial section is a discharging groove 2, the length of the discharging groove 2 is one third of the length of the packing tube 11, a cutting point of the discharging groove 2 is located at one third of the diameter of the end opening of the packing tube 11, namely, the packing tube 11 is cut along a chord of a node of the diameter of the end opening passing through one end, the tube wall of a part with a larger arc length is reserved, a packing tube guide groove 1 is arranged at the other two thirds of the packing tube 11, the position of the packing tube guide groove 1 is arranged on a symmetrical middle line of the discharging groove 2, the depth of the packing tube guide groove 1 is one third of the diameter of the packing tube 11, and the width of the packing tube is 5-8 mm.
The plugging rod 12 is a fully sealed tubular object, the side view of which is similar to a horseshoe shape, the length of the plugging rod 12 is 1.3 times of the length of the plugging pipe 11, and the outer diameter of the plugging rod is 1mm smaller than the inner diameter of the through hole in the plugging pipe 11. The packing rod 12 is provided with a packing rod guide groove 13 over the entire length thereof, and the depth and width of the packing rod guide groove 13 are 1mm and 2mm larger than those of the packing tube guide groove 1, respectively.
The filling pipe 11 and the filling rod 12 are both made of PVC pipe materials, so that the manufacturing cost is low, the weight is light, the blocking material 8 is not easy to adhere, and the transportation and the operation are convenient.
The invention also provides an eyelet plugging method for high-pressure gas rock breaking of a tunnel, which comprises the following specific operation steps as shown in fig. 9-11:
1) firstly, drilling a fracturing hole 10 with a certain depth and diameter according to blasting requirements, then selecting the size of the device according to the size of the fracturing hole 10, and determining the using amount of a plugging material 8, wherein the plugging material 8 adopted by the method is the existing plugging king.
2) The plugging material 8 required by one cracking hole 10 is mixed, namely 3.5kg-5kg of the plugging material 8 is stirred with a certain amount of water, the specific amount depends on the size of the cracking hole 10, and waste caused by rapid solidification of the plugging material 8 is prevented.
3) The expansion pipe 3 is placed at the bottom of the cracking hole 10, and the inflation pipe 4 of the expansion pipe 3 extends out of the cracking hole 10, as shown in fig. 1. And then the uniformly mixed plugging material 8 is fully paved at the discharge chute 2 at the front end of the filling pipe 11.
4) One end of the packing tube 11, which is filled with the plugging material 8, is pushed into the bottom of the remaining space of the blast hole 10. In the process, attention is paid to the fact that the inflation tube 4 of the expansion tube 3 penetrates through the filling tube guide groove 1, the feeding mode can effectively avoid the defect that the traditional filling method cannot enable the plugging material 8 to go deep into the bottom of the cracking hole 10, the blocking material 8 can be prevented from being retained on the wall of the cracking hole 10 in the feeding process, the inflation tube 4 of the expansion tube 3 cannot be damaged in the operation process, and the operation is easier.
5) The plugging rod guide groove 13 and the plugging tube guide groove 1 are aligned, i.e., in line, and then the plugging rod 12 is inserted into the plugging tube 11 until the plugging rod 12 encounters a large resistance, which makes it possible to make the plugging of the plugging material 8 more dense.
6) The plugging rod 12 is pressed by one hand, the plugging tube 11 is drawn out by at least one third of the length by the other hand, and then the plugging tube 11 and the plugging rod 12 are drawn out together. Plugging in this manner does not allow the plugging material 8 to spill out and waste plugging material 8 is not wasted.
7) And (3) paving the plugging material 8 at the axial section of the plugging pipe 11, namely the discharge chute 2, pushing the plugging pipe 11 into the bottom of the remaining unfilled space of the fracturing hole 10, rotating the plugging pipe 11 by 180 degrees, and repeating the operations 5) and 6), so that the gap between the expansion pipe 3 and the fracturing hole 10 can be filled, and the plugging is more compact.
8) The operations are repeated until the fracturing hole 10 is filled, the plugging material 8 can be sent to the bottom of the remaining unfilled space of the fracturing hole 10 in each operation, and the problems that the traditional plugging method is not compact in plugging and poor in rock breaking effect are solved.
In one embodiment, when the depth of the selected fracture inducing hole 10 is 1.5m and the diameter is 0.07m, the plugging method of the present invention is compared with the conventional plugging method, and the amount of the plugging material 8 used is smaller than that of the conventional plugging method, and the plugging effect is superior to that of the conventional plugging method, as shown in Table 1.
TABLE 1 comparison of the amount of filling material and the filling effect between the conventional method and the method of the present invention
In the process of filling the deep cracking hole 10, the plugging material 8 does not contact with the wall of the cracking hole 10 too much, so that the plugging material 8 is not solidified on the wall of the hole to obstruct the next operation, the inflation tube 4 of the expansion tube 3 is not damaged in the whole operation process, the difficulty of the inflation tube 4 in the operation can be effectively avoided, and the problem of difficult operation is solved; each operation of the plugging device can send the plugging material 8 to the bottommost part of the existing unfilled space of the fracturing hole 10, so that the problem of incompact plugging in the traditional method is solved; the method and the device of the invention avoid the problem that the plugging material 8 overflows from the orifice of the fracturing hole 10 in the using process, so the waste of the plugging material 8 is not caused.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (4)
1. The utility model provides a device is clogged to punchhole that tunnel high-pressure gas broke rock which characterized in that: comprises a packing tube and a packing rod; a through hole with two through ends is formed in the packing tube, the outer diameter of the packing tube is 4-8mm smaller than the aperture of the cracking hole, and the length of the packing tube is greater than that of the cracking hole; one end of the packing tube is a handheld end, a horizontal discharging groove is formed in the port of the other end of the packing tube, a packing tube guiding groove is formed between the discharging groove and the port of the handheld end of the packing tube, the side wall of the packing rod is provided with a packing rod guiding groove, the length of the packing rod is larger than that of the packing tube, the outer diameter of the packing rod is smaller than the inner diameter of a through hole in the packing tube, and the width of the packing rod guiding groove is larger than that of the packing tube guiding groove; the discharge groove is positioned at an axial section from a port of the filling pipe far away from a handheld end to a node which is closest to the port in the axial direction, the length of the discharge groove accounts for one third of the length of the whole filling pipe, the axial section is perpendicular to the radial section of the filling pipe, and the length of the axial section from the bottommost part of the filling pipe is two thirds of the diameter of the filling pipe; the position of the filling pipe guide groove is arranged on a symmetrical middle line of the discharging groove, the depth of the filling pipe guide groove is one third of the diameter of the filling pipe, the width of the filling pipe guide groove is 5-8mm, and the length of the filling pipe guide groove is two thirds of the length of the filling pipe.
2. An eyelet plugging device for high-pressure gas rock breaking in a tunnel according to claim 1, wherein: the length of the plugging rod is 1.3 times of the length of the plugging pipe, and the outer diameter of the plugging rod is 1mm smaller than the inner diameter of the plugging pipe.
3. An eyelet plugging device for high-pressure gas rock breaking in a tunnel according to claim 2, wherein: the depth of the guide groove of the filling rod is 1mm greater than that of the guide groove of the filling pipe; the width of the filling rod guide groove is 2mm larger than that of the filling pipe guide groove, so that the filling rod guide groove can be nested on the filling pipe guide groove.
4. A method for plugging a hole of a tunnel high-pressure gas rock breaking is characterized by comprising the following steps: the method comprises the following steps:
1) drilling a cracking hole with a preset depth and a preset diameter according to blasting requirements, selecting the sizes of a packing pipe and a packing rod according to the size of the cracking hole, and determining the using amount of a plugging material;
2) mixing a plugging material required by the cracking, namely stirring 3.5kg-5kg of the plugging material and a certain amount of water, wherein the specific amount is determined according to the size of the cracking;
3) placing the expansion pipe at the bottom of the cracking hole, extending the inflation pipe of the expansion pipe out of the cracking hole, and then fully paving the uniformly mixed plugging material in a discharge groove at the front end of the plugging pipe;
4) pushing one end of the packing pipe, which is fully paved with the plugging material, into the bottom of the residual space of the fracturing hole, and enabling the gas filling pipe of the expansion pipe to penetrate through the guide groove of the packing pipe in the process of pushing the packing pipe into the fracturing hole;
5) aligning a guide groove of the filling rod with a guide groove of the filling pipe, and then inserting the filling rod into the filling pipe until the filling rod meets the resistance of the plugging material filled in the fracturing hole;
6) one hand presses the plugging rod, the other hand extracts the plugging tube by at least one third of the length, and then extracts the plugging tube and the plugging rod together;
7) paving the plugging material at the discharge groove of the filling pipe, pushing the filling pipe into the bottom of the residual space of the fracturing hole, enabling the inflation pipe of the expansion pipe to penetrate through the guide groove of the filling pipe in the process of pushing the filling pipe into the fracturing hole, rotating the filling pipe by 180 degrees, and repeating the operations 5) and 6) to fill the gap between the expansion pipe and the fracturing hole;
8) repeating the steps until the cracking holes are filled.
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| CN203811060U (en) * | 2013-12-23 | 2014-09-03 | 山西潞安环保能源开发股份有限公司 | Tamping bar for ultra-deep hole blasting |
| CN204085346U (en) * | 2014-08-20 | 2015-01-07 | 山西大同大学 | Quick blocking water filling spalling tubulose perforation plugging device |
| CN204495210U (en) * | 2015-03-17 | 2015-07-22 | 四川会理铅锌股份有限公司 | A kind of stemming pushes and makes instrument firm by ramming |
| CN205228306U (en) * | 2015-12-08 | 2016-05-11 | 山东科技大学 | Tamper |
| CN108036685A (en) * | 2017-12-11 | 2018-05-15 | 中铁广州建设有限公司 | A kind of rock multiple-row blasting device and its method for blocking dry ice fracturing rock blasthole |
| KR101956755B1 (en) * | 2018-07-20 | 2019-03-11 | 박만석 | Method of Collecting for Blasting Rock |
| CN109084648A (en) * | 2018-09-18 | 2018-12-25 | 贵州贵安新联爆破工程有限公司 | A kind of simple tamponade device of horizontal blasthole |
| CN209295801U (en) * | 2018-11-22 | 2019-08-23 | 四川交投建设工程股份有限公司 | Tunnel Blasting combined type charge constitution |
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2019
- 2019-11-04 CN CN201911064828.2A patent/CN110779407B/en active Active
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