CN218480990U - Water-filling and explosive-sealing structure for tunneling blast hole - Google Patents

Water-filling and explosive-sealing structure for tunneling blast hole Download PDF

Info

Publication number
CN218480990U
CN218480990U CN202222586610.7U CN202222586610U CN218480990U CN 218480990 U CN218480990 U CN 218480990U CN 202222586610 U CN202222586610 U CN 202222586610U CN 218480990 U CN218480990 U CN 218480990U
Authority
CN
China
Prior art keywords
explosive
water
tunneling
filling
cap body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222586610.7U
Other languages
Chinese (zh)
Inventor
刘春瑶
孙莉
吴三
唐杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinohydro Bureau 12 Co Ltd
Original Assignee
Sinohydro Bureau 12 Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sinohydro Bureau 12 Co Ltd filed Critical Sinohydro Bureau 12 Co Ltd
Priority to CN202222586610.7U priority Critical patent/CN218480990U/en
Application granted granted Critical
Publication of CN218480990U publication Critical patent/CN218480990U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

The utility model discloses a tunnel tunnelling big gun hole fill water and seal medicine structure, including filling the water pocket in the big gun hole and setting up the inclosed interior gasbag that fills in the water pocket, be equipped with explosive, detonator and detonating cord in the inner chamber of interior gasbag that fills, detonating cord extends to outside the big gun hole, is equipped with the butt joint that is used for docking the gun rod on the surface of interior gasbag that fills. The utility model discloses a set up the water pocket and fill the two bag structures of gasbag in, not only can effectively avoid the humidity, guarantee the validity of explosive, can protect the explosive when pushing in moreover, reduce extrusion and impact, the surface of gas cell sets up the butt joint including simultaneously, can conveniently fill the explosive in the gasbag and push the water pocket terminal, the operation is lighter, has improved the efficiency of construction.

Description

Water-filling and explosive-sealing structure for tunneling blast hole
Technical Field
The utility model belongs to the technical field of the blasting engineering, concretely relates to water filling and explosive sealing structure of tunnel boring big gun hole.
Background
Blast hole blasting is widely used for mining and tunnel excavation, and the conventional method is to fill explosive in blast holes by excavating the blast holes, but because gaps exist between the explosive and the blast hole walls inevitably, half blasting is easy to occur in actual operation, the gaps are easy to accumulate gas, and the explosive causes gas blasting during blasting.
Aiming at the situation, the prior art generally adopts a water-filled explosive sealing technology to fill a blast hole, wherein the water-filled explosive sealing technology is to wrap an explosive by a water sac and lead out a detonating cord from the water sac structure; the water bag and the explosive are plugged into the blast hole together and then continuously filled with water and pressurized, the water bag is generally made of soft rubber, and the water bag is filled in gaps on the wall of the blast hole under the action of water pressure to realize tight fit with the wall of the blast hole. And the explosive explodes in the aquatic, because water is incompressible, the detonation wave is transmitted to the big gun pore wall by water this moment for big gun pore wall atress is even, and the big gun pore wall is hugged closely with the water pocket and has also emptied gas, and not only the blasting effect is outstanding, simultaneously also safer.
At present, the installation mode of a water bag structure is shown in the attached drawings 1-2 of the specification, the water bag is plugged into a blast hole, then explosive is plugged into the water bag through a gun stick, at the moment, a detonating cord is led out from a corresponding line hole of the water bag, the open end of the water bag is sealed, pressure water injection is carried out through a filling port on the water bag, and filling can be achieved until the water bag is tightly attached to the wall of the blast hole.
Above-mentioned operation mode is comparatively common at present, but need guarantee higher operation requirement, especially when top-plugging the explosive through the gun barrel, not only will push slowly, still need avoid detonating cord and explosive to break away from. However, because the gun rod and the explosive are not connected, the force is difficult to control when the gun rod is pushed in, if the thrust is too small, the explosive is difficult to move to the inner end of the water bag, and if the thrust is too large, the explosive is easily extruded from the outside. In addition, the connection position of the explosive and the detonating cord is soaked in water within a certain period of time, so that the explosive is easily affected with damp, and the performance of the explosive can be influenced, even the explosive fails.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem, a water-filling and explosive-sealing structure of tunnel excavation big gun hole is provided, through setting up the water pocket and the two-bag structure of filling the gasbag in, not only can make the explosive, the link of detonator and detonating cord is in sealed state in the water pocket, effectively avoid moist, guarantee the validity of explosive, and can protect the explosive when pushing in, reduce extrusion and impact, the surface of filling the gasbag sets up the butt joint including simultaneously, can conveniently fill the explosive in the gasbag and push the water pocket terminal, the operation is lighter, and the construction efficiency is improved.
A water-filled and explosive-sealed structure for a tunnel tunneling blast hole comprises a water bag filled in the blast hole and a closed inner-filled air bag arranged in the water bag, wherein an inner cavity of the inner-filled air bag is internally provided with explosives, a detonator and a detonating cord, the detonating cord extends out of the blast hole, and the outer surface of the inner-filled air bag is provided with a butt joint for butting a gun rod.
The further technical scheme is as follows: the inner inflating air bag comprises an explosive outer sleeve and a cap body, the outer contours of the explosive outer sleeve and the cap body are tubular columns with one open ends and one closed end, and the open ends of the explosive outer sleeve and the cap body are connected in a sealing mode through gluing.
The further technical scheme is as follows: the cap body is provided with an air hole and is butted with an inflating nozzle, and the inflating nozzle is connected with an air plug.
The further technical scheme is as follows: the explosive and the inner bottom surface of the explosive outer sleeve are fixed by gluing, and a certain interval is left between the explosive and the inner side surface of the explosive outer sleeve.
The further technical scheme is as follows: the outer bottom surface of the explosive jacket is provided with a glue paste connected with the inner bottom surface of the water bag.
The further technical scheme is as follows: the butt joint is arranged on the outer surface of the cap body in the axial direction close to one end of the blast hole orifice, the butt joint is hollow, one end connected with the cap body is closed, and an opening is formed in one end extending outwards.
The further technical scheme is as follows: the inner wall of the opening end of the butt joint is provided with threads, and the end part of the gun stick is in threaded connection with the opening end of the butt joint.
The further technical scheme is as follows: the water bag is in a tubular column shape with one open end and one closed end, the open end of the water bag is sleeved with a port ring body, the port ring body is in threaded connection with a sealing cover, and a water injection pipe is arranged on the sealing cover.
The further technical scheme is as follows: the cap body and the sealing cover are respectively provided with a line hole for leading out a detonating cord, and the line hole penetrating through the detonating cord is sealed by glue injection.
The utility model has the advantages that:
the utility model discloses it is rational in infrastructure, adopt the water pocket and interior two bag structures of filling the gasbag, water pocket surface and big gun hole wall laminating, be equipped with in the inner chamber and fill the gasbag and fill water, it deposits the explosive to fill the gasbag inner seal, detonator and detonating cord, not only can make the explosive, the link of detonator and detonating cord is in with the isolated encapsulated situation of water, effectively avoid moist, guarantee the validity of explosive, improve overall stability, and can protect the explosive when using the gun rod to push away in addition, reduce the extrusion and strike. The outer surface of the inner inflatable bag is provided with the butt joint, so that the rapid butt joint of the gun stick and the inner inflatable bag can be realized, the contact area of the gun stick and the inner inflatable bag is increased, the explosive in the inner inflatable bag is conveniently pushed into the water bag end, the operation is easier, and the construction efficiency is improved.
Drawings
Fig. 1 shows a prior art water-filled and drug-sealed structure.
FIG. 2 is a prior art schematic illustration of the insertion of explosives by a gun barrel.
Fig. 3 is a schematic diagram of the explosive filled in the gun stick according to the present invention.
Fig. 4 is the water-filled and medicine-sealed structure of the present invention.
Fig. 5 is a schematic view of a partial structure of the present invention.
In the figure: 1-blast hole, 2-water bag, 3-port ring body, 4-seal cover, 5-water injection pipe, 6-explosive, 7-detonator, 8-detonating cord, 9-gun rod, 10-internal air bag, 11-charging nozzle, 12-butt joint, 13-cap body, 14-explosive coat, 15-glue paste and 16-line hole.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are presented, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but not for indication or suggestion that the indicated device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as a limitation of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A water-filled and explosive-sealed structure of a tunneling blast hole comprises a water bag 2 filled in a blast hole 1 and a sealed inner filling air bag 10 arranged in the water bag 2, wherein an inner cavity of the inner filling air bag 10 is internally provided with explosives 6, a detonator 7 and a detonating cord 8, the explosives 6 are connected with the detonator 7, the detonating cord 8 extends out of the blast hole, and the outer surface of the inner filling air bag 10 is provided with a butt joint 12 for butt joint of a gun rod 9.
The inner inflating air bag 10 comprises an explosive outer sleeve 14 and a cap body 13, the outer contours of the explosive outer sleeve 14 and the cap body 13 are both in a tube column shape with one open end and one closed end, and after the explosive 6, the detonator 7 and the detonating cord 8 are placed in the explosive outer sleeve 14, the open end of the explosive outer sleeve 14 is in sealed connection with the open end of the cap body 13 through gluing. The cap body 13 and the explosive outer sleeve 14 are preferably made of rubber or PVC, and can be deformed well.
The cap body 13 is provided with an air hole and is butted with an inflating nozzle 11, and the inflating nozzle 11 is connected with an air plug. Air is injected into the inner inflating bag 10 through the inflating nozzle 11, so that the inner inflating bag 10 is inflated, the explosive 6 can be well wrapped and protected in the pushing process, the external impact and extrusion in the pushing process are effectively reduced, and the pushing safety is improved.
The explosive 6 and the inner bottom surface of the explosive outer sleeve 14 are fixed by gluing, and the purpose of gluing is to avoid the explosive from moving and separating, so that the explosive 6 can be fixed at the tail end in the explosive outer sleeve 14; a certain interval is reserved between the inner surfaces of the explosive 6 and the explosive outer sleeve 14, and the explosive outer sleeve 14 can be filled with air in the interval, so that the explosive outer sleeve 14 bulges towards the outer side of the explosive 6 to play a role in protection.
In an embodiment, the outer bottom surface of the explosive outer sleeve 14 is provided with the glue paste 15, and the glue paste is fixed with the inner bottom surface of the water bag 2 through gluing, so that for part of the obliquely arranged blast holes, the glue paste 15 can realize the connection and fixation between the water bag 2 and the inner filling air bag 10, can avoid falling off, and ensures that the explosive 6 carried by the inner filling air bag 10 is positioned at the innermost end position of the blast hole.
The butt joint 12 is arranged on the outer surface of the cap body in the axial direction close to one end of the blast hole orifice, the butt joint 12 is hollow, one end connected with the cap body is closed, and one end extending outwards is provided with an opening. The arrangement of the butt joint 12 enables the gun stick 9 to be in quick butt joint with the inner inflating air bag 10, the contact area of the gun stick 9 and the inner inflating air bag 10 is increased, the inner inflating air bag 10 is conveniently pushed into the inner tail end of the water bag 2, and the extrusion of the explosive 6 in the inner inflating air bag 10 is reduced.
In the preferred embodiment, the inner wall of the opening end of the butt joint 12 is provided with threads, and the end part of the gun rod 9 is connected with the opening end of the butt joint 12 in a threaded manner. The gun rod 9 is a hard straight rod, and the gun rod 9 is in threaded connection with the butt joint 12, so that the gun rod 9 is fixed with the inner inflating air bag 10 when pushed in, the gun rod 9 cannot move randomly, and force is relieved when pushed in.
The water bag 2 is in the shape of a tube with one open end and one closed end, and is preferably made of soft rubber material. The opening end of the water sac 2 is positioned at the outer side of the blast hole and is sleeved with a port ring body 3, and the port ring body 3 is made of hard plastics. A sealing cover 4 is arranged corresponding to the port ring body 3, the sealing cover 4 is in threaded connection with the port ring body 3, a water injection pipe 5 is arranged on the sealing cover 4, the water injection pipe 5 and the sealing cover 4 are integrally formed, and a pipe cover capable of being sealed is arranged on the water injection pipe 5. The introduction of the external pressure water source is realized through the water injection pipe 5, so that the water bag 2 is internally inflated with water.
The cap body 13 and the sealing cover 4 are both provided with wire holes 16 for leading out the detonating cord 8, and the positions of the wire holes 16 penetrating through the detonating cord 8 are sealed by glue injection.
The utility model discloses a use method is: firstly, filling the water bag 2 into the blast hole 1, then placing the explosive 6 into the explosive jacket 14, and after the cap body 13 and the explosive jacket 14 are combined, inflating the inner inflating bag 10 through the inflating nozzle 11, so that the inner inflating bag 10 is inflated, and then the inflating nozzle 11 is closed. One end of the gun rod 9 is rotated to be in threaded connection with the opening end of the butt joint 12, the inflated air bag 10 is pushed to the inner bottom end position of the water bag 2 through the gun rod 9, and the gun rod 9 and the inflated air bag are fixed by matching with the glue 15. The cannon stick 9 is then rotated in the opposite direction to remove the cannon stick 9 from the inner inflatable bladder 10. And (3) connecting and fixing the sealing cover 4 and the port ring body 3, injecting water into the water bag 2 through the water injection pipe 5 until the water bag 2 is tightly attached to the blast hole wall, and then sealing the water injection pipe 5 to finish installation.
The above description is only a specific embodiment of the present invention, and does not therefore limit the scope of the invention as claimed. All the equivalent structures or equivalent flow changes made by using the contents of the specification and the drawings of the present invention, or the direct or indirect application in other related technical fields, should be included in the protection scope of the present invention.

Claims (9)

1. A water-filled and explosive-sealed structure of a tunnel tunneling blast hole is characterized by comprising a water bag filled in the blast hole and a sealed inner-filled air bag arranged in the water bag, wherein an inner cavity of the inner-filled air bag is internally provided with explosives, detonators and a detonating cord, the detonating cord extends out of the blast hole, and the outer surface of the inner-filled air bag is provided with a butt joint for butting a gun rod.
2. The water and explosive filling and sealing structure for the tunneling blasthole as claimed in claim 1, wherein the inner air filling bag comprises an explosive outer sleeve and a cap body, the outer contours of the explosive outer sleeve and the cap body are both in a tubular column shape with an open end and a closed end, and the open end of the explosive outer sleeve is connected with the open end of the cap body in a sealing manner through glue.
3. The water and chemical filling and sealing structure for a tunneling blasthole according to claim 2, wherein the cap body is provided with an air hole and is butted with an inflating nozzle, and the inflating nozzle is connected with an air plug.
4. The water and explosive filling and sealing structure for the tunneling blast hole according to claim 2, wherein the explosive is fixed to the inner bottom surface of the explosive jacket by gluing, and a certain space is left between the explosive and the inner side surface of the explosive jacket.
5. The water and explosive filling and sealing structure for the tunneling blasthole according to claim 2, characterized in that the outer bottom surface of the explosive jacket is provided with a sticker connected with the inner bottom surface of the water bag.
6. The water and chemical filling and sealing structure for a tunneling blasthole according to claim 2, wherein the butt joint is disposed on an outer surface of the cap body in an axial direction of an end of the cap body adjacent to the blasthole opening, the butt joint is hollow, an end connected to the cap body is closed, and an end extending outward is provided with an opening.
7. The water and chemical filling and sealing structure for a tunneling gun hole according to claim 6, wherein the inner wall of the opening end of the butt joint is provided with threads, and the end of the gun rod is in threaded connection with the opening end of the butt joint.
8. The water and chemical filling and sealing structure for a tunneling gun hole according to any one of claims 2 to 7, wherein the water bladder is in the shape of a tubular column with one open end and one closed end, the open end of the water bladder is sleeved with a port ring body, the port ring body is in threaded connection with a sealing cover, and the sealing cover is provided with a water injection pipe.
9. The water and explosive filling and sealing structure for the tunneling blasthole as claimed in claim 8, wherein the cap body and the cover are provided with wire holes for leading out the detonating cord, and the wire holes penetrating through the detonating cord are sealed by injecting glue.
CN202222586610.7U 2022-09-28 2022-09-28 Water-filling and explosive-sealing structure for tunneling blast hole Active CN218480990U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222586610.7U CN218480990U (en) 2022-09-28 2022-09-28 Water-filling and explosive-sealing structure for tunneling blast hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222586610.7U CN218480990U (en) 2022-09-28 2022-09-28 Water-filling and explosive-sealing structure for tunneling blast hole

Publications (1)

Publication Number Publication Date
CN218480990U true CN218480990U (en) 2023-02-14

Family

ID=85167005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222586610.7U Active CN218480990U (en) 2022-09-28 2022-09-28 Water-filling and explosive-sealing structure for tunneling blast hole

Country Status (1)

Country Link
CN (1) CN218480990U (en)

Similar Documents

Publication Publication Date Title
CN109443119B (en) Explosive loading device and method for mixing and loading non-waterproof explosive in water-containing blast hole
CN106593443B (en) A kind of carbon dioxide blasting arrangement and method for mine, rock or coal petrography
CN103148748A (en) Pressure-adjustable expansion plastic pipe deep hole blasting control method
CN108798669B (en) Deep hole loosening hydraulic pressure relief integrated blasting method and device
CN106152887A (en) Inflation expanding perforation plugging device certainly for tunnel deep hole blasting
CN110894790A (en) Internal inflation gas cracking tube
CN218480990U (en) Water-filling and explosive-sealing structure for tunneling blast hole
CN204574976U (en) Deep coal and rock coupling charging structure unloading pressure by blasting device
AU2011237288B2 (en) A rock breaking product
CN201159620Y (en) Deep borehole blasting cartridge
CN201764912U (en) Vibration isolation explosive loading blasthole
KR101931620B1 (en) Blasting method using explosive tube assembly filled with polymer gel
CN207315376U (en) Portable safety gas fracturing pipe group
CN114199091A (en) Detonation cartridge device for upward medium-length hole and charge construction method
CN115950317A (en) Underwater uncoupled explosive charging blasting method
CN115077317A (en) Flexible carbon dioxide phase change blasting cracking device and using method thereof
CN211060753U (en) Gas production tool waterproof device
CN112611276A (en) Deep hole sectional blasting method
CN202511717U (en) Sound source bomb
CN113899273A (en) Blasting dust keeper
CN208763638U (en) A kind of rock body quality of mine superdeep holes presplitting device based on crack agent
CN206503587U (en) A kind of circulating packer of coal petrography water presplitting
CN218155800U (en) Double-deck inflatable tunnel bores and explodes big gun hole blocking device
CN108731560B (en) Blasting structure of high-efficient blasting unit
CN118500207B (en) Flexible fracturing device for tunnel and application method of flexible fracturing device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant