CN113883980A - Tunnel type waste explosive destroying system - Google Patents
Tunnel type waste explosive destroying system Download PDFInfo
- Publication number
- CN113883980A CN113883980A CN202111222122.1A CN202111222122A CN113883980A CN 113883980 A CN113883980 A CN 113883980A CN 202111222122 A CN202111222122 A CN 202111222122A CN 113883980 A CN113883980 A CN 113883980A
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- Prior art keywords
- anchor
- roadway
- net
- destruction
- type waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
- F42D5/04—Rendering explosive charges harmless, e.g. destroying ammunition; Rendering detonation of explosive charges harmless
- F42D5/045—Detonation-wave absorbing or damping means
Abstract
The invention relates to the technical field of destruction of unexplosive explosives, in particular to a roadway type waste explosive destruction system, which comprises: the roof plate is arched, a plurality of anchor rods are arranged on the roof plate, and a first anchor net is connected to the anchor rods; and the side wall is provided with a second anchor net. The invention reforms the original roadway into a destroying chamber, detonates ammunition through the destroying chamber, arranges a pipe seam type anchor rod on the top plate of the roadway, the anchor rod presses the radial direction of the hole wall in the full length range to provide friction force to prevent surrounding rocks from sliding downwards, and has higher shearing resistance and tensile strength, arranges an anchor net at the bottom of the anchor rod, lifts and supports the top plate through the densely distributed anchor net, and sprays concrete mortar on the outer layer to form a smooth top surface structure, when the underground chamber is influenced by explosion shock waves, the integral strength is improved, the expansion and extension of cracks are avoided, the stability of the chamber structure is ensured, and the destroying requirement of unexploded ammunition is met.
Description
Technical Field
The invention relates to the technical field of unexplosive explosive destruction, in particular to a roadway type waste explosive destruction system.
Background
In the development, transformation and extension processes of urban and rural infrastructure in recent years, waste ammunition which is left in war ages is often dug out, and the grenades mainly comprise hand grenades, aviation bombs, mortar bombs, grenades and the like. These used ammunition generally have the characteristics of long time, serious rust, local damage, complex variety, difficult identification, unstable performance, increased sensitivity, weakened or invalid insurance and the like. Because the TNT explosive or the mixed explosive mainly comprising the TNT explosive has stable property and long effective storage life, the TNT explosive still has explosion danger even if being stored for decades.
In China, the explosion method is the best method for disposing various waste explosives and powders, particularly waste shells and aeronautical bombs. The ammunition is treated by an explosion method, and then the explosive in the ammunition body is thoroughly destroyed. Under the condition of standard operation, the subsequent operation danger to workers is small. Because the old and useless shell is often dug out at some construction sites, for safe, effectual processing, because mine tunnel country rock is comparatively firm, and to the little region of mine production influence, possess independent advance, return air system, can in time discharge poisonous and harmful gas after guaranteeing the destruction blasting of old and useless shell, consequently, handle in the gallery of mine and have certain safety advantage.
However, the destruction field chamber is subjected to a large explosion impact, and if maintenance support treatment is not performed, risks such as cracks and collapse still occur, so that the destruction field chamber needs to be modified and subjected to support treatment.
Disclosure of Invention
The invention aims to provide a roadway type waste explosive destroying system, which comprises:
the roof plate is arched, a plurality of anchor rods are arranged on the roof plate, and a first anchor net is connected to the anchor rods;
the side wall is provided with a second anchor net;
the device comprises a bottom plate, wherein two destroying pits are formed in the bottom plate, and unexplosive ammunition is placed in the destroying pits;
the detonation network comprises a first detonation circuit and a second detonation circuit, the first end of each detonation circuit is connected with a detonator of a detonating tube positioned in the destruction pit, and the second end of each detonation circuit is connected with an ignition station;
wherein a guniting coating is provided on the outside of the first and second anchor nets, the anchor rod is arranged perpendicular to the surface of the top plate, the anchor rod has a portion exposing the top plate, the first anchor net is fixed to the exposed portion of the anchor rod, and the first and second anchor nets are embedded in the guniting coating.
Preferably, the anchor rods are arranged in a diamond distribution, the spacing between the plurality of anchor rods is 1000mm, and the row spacing is 1000 mm.
Preferably, the anchor comprises a tube seam anchor.
Preferably, the mesh size of the first and second anchor nets is 250 x 250 mm.
Preferably, the diameter of the first anchor net and the second anchor net is 8mm, and the thickness of the guniting coating is 20-50 mm.
Preferably, the length of the anchor rod is 1200mm or 1500mm, and the outer diameter of the anchor rod is 30 or 33 mm.
Preferably, the bottom of the anchor rod is provided with a pressing sheet, the first anchor net is arranged between the pressing sheet and the top plate, and the second anchor net and the first anchor net are integrally formed.
Preferably, the distance between the two destruction pits is larger than 5m, a detonating body is arranged in each destruction pit, and the detonating tube detonator is used for detonating the detonating body.
Preferably, the detonation body comprises a paste-like emulsion explosive, and a soil layer covers the surface of the detonation body.
Preferably, the detonator in both said destruction pits is arranged to delay initiation for different durations.
Compared with the prior art, the invention has the advantages that:
the invention reforms the original roadway into a destruction chamber, detonates ammunition through the destruction pit, arranges a pipe seam type anchor rod on the top plate of the roadway, the anchor rod presses the radial direction of the hole wall in the full length range to provide friction force to prevent surrounding rocks from sliding downwards, and has higher shearing resistance and tensile strength, arranges an anchor net at the bottom of the anchor rod, lifts the top plate through the densely distributed anchor net, and sprays concrete mortar on the outer layer to form a smooth top surface structure, when influenced by explosion shock waves, the traction between local rock layers can be increased, the overall strength is improved, the expansion and extension of cracks are avoided, the stability of the chamber structure is ensured, and the destruction requirement of unexplosive powder is met.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of the underground roadway unexplosive ammunition destruction site chamber structure shown in the invention;
fig. 2 is a schematic structural view of a ceiling of the chamber structure of the present invention;
fig. 3 is a schematic view of the distribution of the anchor rods of the present invention;
figure 4 is a schematic view of the detonating circuit shown in the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways in any roadway waste explosives destruction system, as the disclosed concepts and embodiments are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
With reference to fig. 1, the invention provides a tunnel-type waste explosive destroying system, which comprises a chamber structure and an initiation system, wherein the chamber structure mainly comprises a side wall 1, a top plate 3 and two destroying pits 2. The destruction pit 2 is used for containing unexplosive ammunition, and the chamber structure is used as a destruction field.
In an alternative real-time example, two destruction pits 2 with the depth of 3m, the width of 3m and the length of 9m are dug in the destruction field, and the distance between the pits is not less than 5 m.
Specifically, the unexploded bomb is placed in a destruction pit 2, is placed in order, and is covered with a cartridge cut by paste emulsion explosive with the diameter of 70mm (the length is 46cm, the weight is 2kg, and the weight of the unit length is 4.35kg/m), namely, the paste emulsion explosive with the diameter of 70mm is used for manufacturing the detonating body. Each explosive package is provided with 2 detonators at the same section, and a multi-MS delay detonating tube detonator 63 is arranged.
Referring to fig. 4, MS-8 and MS-9 millisecond detonating tube detonators 63 are respectively selected for pit No. 1 and pit No. 2, the detonators in each pit are divided into two independent detonating circuits which comprise a first detonating circuit 61 and a second detonating circuit 62, and the other ends of the detonating circuits are connected to an ignition station for ignition, so that the detonating tube detonators 63 explode and detonate the detonating bodies to destroy the unexploded bombs.
As shown in fig. 2 to 3, in order to enhance the strength of the roof panel 3 and prevent the roof panel 3 from generating cracks or increasing cracks in multiple blast shock waves, a plurality of anchor rods 4 are provided on the arched roof panel 3, and the anchor rods 4 are connected with a first anchor net 51; so, lay first anchor net 51 in the below of roof 3 through stock 4, support, prevent that the part from appearing collapsing to can be effectual with a plurality of structural layer bearing as an organic whole.
In an alternative embodiment, the anchor rod 4 is a tube seam anchor rod, preferably, the length of the anchor rod 4 is 1200mm or 1500mm, the outer diameter of the anchor rod 4 is 30 mm or 33mm, the anchor rod presses the hole wall in the radial direction in the full length range to provide friction force for preventing the surrounding rock from sliding downwards, and the anchor rod has high shearing resistance and tensile strength.
Before inserting the anchor rod, a drilling machine is used for drilling a plurality of anchor holes in the top plate 3 along the direction perpendicular to the arched section, wherein the size of the selected anchor rod 4 is slightly larger than that of the anchor holes.
Referring to fig. 3, in the present embodiment, the anchor holes are arranged in a diamond shape, and the distance a between each two anchor holes is 1000mm, during construction, one row of anchor holes is installed for drilling, the anchor holes in each row form different angles, and in the second row, the anchor holes are staggered with the anchor holes in the first row, so that multiple rows of anchor holes are formed in the diamond shape.
Further, the anchor rods 4 are arranged perpendicular to the surface of the top plate 3, the anchor rods 4 have portions exposing the top plate 3, and the first anchor net 51 is fixed to the exposed portions of the anchor rods 4, specifically, the bottom of the anchor rods 4 is provided with a pressing piece, and the first anchor net 51 is disposed between the pressing piece and the top plate 3, so that the first anchor net is pressed below the top plate 3 to form a support for the top plate 3.
Further, the side wall 1 is provided with a second anchor net, the second anchor net and the first anchor net 51 are integrally formed, and the side wall 1 is a vertical surface, so that after the first anchor net 51 is fixed, the position of the second anchor net is fixed first.
In an alternative embodiment, the mesh sizes of the first anchor net 51 and the second anchor net are 250 x 250mm, and a better bearing performance can be realized through the high-density anchor net, and a foundation is laid for subsequent mortar spraying.
As shown in fig. 1 to 3, the first anchor net 51 and the second anchor net are provided with a gunite coating 52 on the outside thereof to form the support layer 5, and the first anchor net 51 and the second anchor net are embedded in the gunite coating 52.
In a preferred embodiment, the first anchor net 51 and the second anchor net have a diameter of 8mm, and the gunite coating 52 has a thickness of 20-50 mm. Thus, the gunite coating 52 is tightly connected to the first anchor net 51 and the second anchor net, and a dense support layer 5 is formed outside the roof panel 3, so that the formation or increase of cracks can be suppressed, and the blast impact resistance can be improved.
By combining the above embodiments, the invention reforms the original roadway into a destruction chamber, detonates ammunition through the destruction pit, and sets a pipe seam type anchor rod on the top plate of the roadway, the anchor rod provides friction force for preventing surrounding rocks from sliding down in the full length range, and has higher shearing resistance and tensile strength, and sets an anchor net at the bottom of the anchor rod, lifts the top plate through the anchor net distributed densely, and sprays concrete mortar on the outer layer to form a smooth top surface structure.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A tunnel type waste explosive destruction system is characterized by comprising:
the roof plate is arched, a plurality of anchor rods are arranged on the roof plate, and a first anchor net is connected to the anchor rods;
the side wall is provided with a second anchor net;
the device comprises a bottom plate, wherein two destroying pits are formed in the bottom plate, and unexplosive ammunition is placed in the destroying pits;
the detonation network comprises a first detonation circuit and a second detonation circuit, the first end of each detonation circuit is connected with a detonator of a detonating tube positioned in the destruction pit, and the second end of each detonation circuit is connected with an ignition station;
wherein a guniting coating is provided on the outside of the first and second anchor nets, the anchor rod is arranged perpendicular to the surface of the top plate, the anchor rod has a portion exposing the top plate, the first anchor net is fixed to the exposed portion of the anchor rod, and the first and second anchor nets are embedded in the guniting coating.
2. The roadway waste explosive destruction system according to claim 1, wherein the anchor rods are arranged in a diamond distribution, the distance between the anchor rods is 1000mm, and the row spacing is 1000 mm.
3. The roadway-type waste explosive destruction system of claim 1, wherein the anchor rods comprise tube seam anchor rods.
4. The roadway-type waste explosive destruction system according to claim 1, wherein the mesh sizes of the first and second anchor nets are 250 x 250 mm.
5. The roadway-type waste explosive destruction system according to claim 1, wherein the first anchor net and the second anchor net have a diameter of 8mm, and the gunite coating has a thickness of 20-50 mm.
6. The roadway-type waste explosive destruction system according to claim 1, characterized in that the length of the anchor rod is 1200mm or 1500mm, and the outer diameter of the anchor rod is 30 or 33 mm.
7. The roadway-type waste explosive destruction system according to claim 1, wherein the bottom of the anchor rod is provided with a pressing plate, the first anchor net is arranged between the pressing plate and the top plate, and the second anchor net and the first anchor net are integrally formed.
8. The roadway waste explosive destruction system according to any one of claims 1 to 7, wherein the distance between two destruction pits is greater than 5m, an initiating body is arranged in the destruction pits, and the detonator is used for initiating the initiating body.
9. The roadway-type waste explosive destruction system according to claim 8, wherein the detonation bodies comprise pasty emulsion explosives, and the surfaces of the detonation bodies are covered with a soil layer.
10. The roadway waste explosives destruction system of claim 8, wherein the detonator in both destruction pits is arranged to delay detonation of different durations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111222122.1A CN113883980A (en) | 2021-10-20 | 2021-10-20 | Tunnel type waste explosive destroying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111222122.1A CN113883980A (en) | 2021-10-20 | 2021-10-20 | Tunnel type waste explosive destroying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113883980A true CN113883980A (en) | 2022-01-04 |
Family
ID=79003781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111222122.1A Pending CN113883980A (en) | 2021-10-20 | 2021-10-20 | Tunnel type waste explosive destroying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113883980A (en) |
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2021
- 2021-10-20 CN CN202111222122.1A patent/CN113883980A/en active Pending
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