CN114909960A - Antiknock gallery suitable for quiet power of exploding of large-scale ammunition gallery aassessment - Google Patents
Antiknock gallery suitable for quiet power of exploding of large-scale ammunition gallery aassessment Download PDFInfo
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- CN114909960A CN114909960A CN202210615070.2A CN202210615070A CN114909960A CN 114909960 A CN114909960 A CN 114909960A CN 202210615070 A CN202210615070 A CN 202210615070A CN 114909960 A CN114909960 A CN 114909960A
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- 238000004880 explosion Methods 0.000 claims abstract description 59
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 230000003068 static effect Effects 0.000 claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000011372 high-strength concrete Substances 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 3
- 230000035939 shock Effects 0.000 claims description 27
- 238000011156 evaluation Methods 0.000 claims description 20
- 238000005474 detonation Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 206010033307 Overweight Diseases 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/14—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force of explosions; for measuring the energy of projectiles
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/14—Force analysis or force optimisation, e.g. static or dynamic forces
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- Civil Engineering (AREA)
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Abstract
The invention discloses an anti-explosion tunnel suitable for evaluating the static explosion power of a large-scale ammunition tunnel, which comprises a tunnel main body of a semi-buried type buried underground and adopting a three-section structure formed by pouring high-strength concrete and reinforcing steel bars, wherein the thickness of the explosion center of the tunnel main body is highest, the thickness of the part close to the explosion center is second, and the thickness of the rest part is lowest; a steel mixed insertion door is arranged at the inlet end of the main body of the gallery; the bottom surface of the tunnel main body between the inlet end and the blasting center is embedded with an embedded steel rail for transporting and installing the test piece and the fixed support, and the top of the blasting center of the tunnel main body is provided with a lifting device for lifting the test piece and the fixed support; a U-shaped protection block is arranged in a groove in the bottom of the blasting center of the main body of the tunnel in a sinking mode, and an embedded steel plate for increasing the strength of the tunnel at the blasting center is arranged on the side wall of the blasting center of the main body of the tunnel; and sensor pipelines are pre-buried at preset positions on the side wall of the tunnel main body so as to protect the overpressure sensor arranged in the tunnel main body. The invention can effectively strengthen the strength of the blasting center of the tunnel and is convenient for transporting and loading test pieces in the tunnel.
Description
Technical Field
The invention relates to the technical field of anti-explosion tunnel evaluation, in particular to an anti-explosion tunnel suitable for evaluating the static explosion power of a large-scale ammunition tunnel.
Background
With the rapid development of the accurate guided weapons, the accurate striking requirements for underground defense works are increased day by day, the phenomenon that the conventional weapons such as the accurate guided weapons and the ground drilling weapons explode near the tunnel entrance is very likely to occur, and more large weapon ammunitions need to carry out real-ammunition and real-explosion evaluation on the explosion power of the large weapon ammunitions in the tunnel. Different from simulation calculation and tunnel static explosion power evaluation tests of small equivalent ammunition, the large ammunition tunnel static explosion power evaluation test has the defects of high cost, complex tunnel design, high requirement on a measurement system, high safety protection level, long test period and poor test repeatability, and key links of the large ammunition tunnel static explosion power evaluation test need to be designed and verified in detail.
The blast resistance of the tunnel is a key difficulty of a static blasting power evaluation test of the tunnel of the large-scale ammunition, and the problems that the tunnel is weak in blasting center strength and the sealing difficulty of the end part of the tunnel close to the blasting center is high need to be solved so as to ensure that the tunnel strength at the blasting center can resist the explosion of the large-scale ammunition and can not generate pressure relief, and the shock wave generated by the explosion can completely face the pressure relief end, so that the power characteristic and the damage effect of the ammunition can be accurately evaluated.
At present, relevant documents for evaluating the tunnel static explosion power of ammunition mainly focus on the research on overpressure of shock waves, the research on tunnel explosion resistance of live ammunition live explosion is not much, and the research on live ammunition live explosion of more than 1 ton of heavy ammunition is less. Based on the design, a set of anti-explosion tunnel system with good anti-explosion performance needs to be designed to meet the requirement of static explosion power evaluation of the large-scale ammunition tunnel.
Disclosure of Invention
The invention aims to provide an anti-explosion tunnel suitable for evaluating the static explosion power of a large-scale ammunition tunnel, aiming at the technical defects in the prior art.
The technical scheme adopted for realizing the purpose of the invention is as follows:
an anti-detonation tunnel suitable for static detonation power evaluation of a large ammunition tunnel, comprising:
the tunnel main body is of a three-section structure and is formed by pouring high-strength concrete and reinforcing steel bars, the thickness of the blasting center of the tunnel main body is highest, the thickness of the blasting center is second, and the thickness of the rest part is lowest; the main body of the tunnel is buried in the ground in a semi-burying manner;
the inlet end of the tunnel main body is provided with a steel mixed insertion door for sealing the inlet end of the tunnel main body so as to prevent overpressure leakage caused by damage caused by detonation of ammunition;
the bottom surface of the tunnel main body between the sealed inlet end and the blasting center is embedded with an embedded steel rail for transporting and installing a test piece and a fixed support, and the top of the blasting center of the tunnel main body is provided with a lifting device for lifting the test piece and the fixed support to a preset height for suspension;
a U-shaped bottom protection block is arranged in a groove in the bottom of the blasting center of the tunnel main body in a sinking mode and used for preventing the bottom of the test piece from being damaged;
the side wall of the blasting center of the tunnel main body is provided with an embedded steel plate for increasing the strength of the tunnel at the blasting center;
sensor pipelines are pre-buried in preset positions on the side wall of the tunnel main body and used for protecting an overpressure sensor installed in the tunnel main body, and the overpressure sensor is used for collecting shock wave overpressure generated when a test piece explodes and used as data for evaluating the static explosion power of the large-scale ammunition tunnel.
The anti-explosion tunnel suitable for the static explosion power evaluation of the large-scale ammunition tunnel is integrated and innovated based on test system technologies such as sectional tunnel design, plug-in steel-concrete door sealing, slide rail type transport and loading tools, split type sensor embedding and the like by combining with the propagation rule of the overpressure of the shock wave in the tunnel, so that the anti-explosion tunnel has the advantages of safety, stability, strong anti-explosion performance and controllable cost, and can be applied to the static explosion power evaluation test of the large-equivalent and high-weight ammunition tunnel; the anti-explosion tunnel suitable for evaluating the static explosion power of the large-scale ammunition tunnel can effectively strengthen the strength of the explosion center of the tunnel, is simple and easy to seal the inlet end, is convenient for transporting and loading test pieces in the tunnel, and is low in tunnel cost.
Drawings
Fig. 1 is a schematic diagram of an anti-detonation tunnel of the present invention suitable for static detonation power evaluation of large ammunition tunnels.
Fig. 2 is a schematic mounting diagram of an overpressure sensor and an embedded steel plate on a cross section of an anti-explosion tunnel suitable for static explosion power evaluation of a large-scale ammunition tunnel.
Fig. 3 is a test result diagram of an anti-detonation tunnel suitable for static detonation power evaluation of a large-scale ammunition tunnel according to the invention.
Reference numerals:
1 is a main body of the tunnel; 2, a steel mixed insertion door; 3 is a chain block; 4 is a fixed bracket;
5 is a test piece; 6 is a bottom protection block; 7 is land; 8, pre-buried steel rails;
9, pre-buried steel plates; 10 is a pre-embedded sensor pipeline; 11 is an overpressure sensor; 12 is the cross-sectional position of the overpressure sensor arrangement.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The anti-explosion tunnel suitable for evaluating the static explosion power of the large-scale ammunition tunnel is used for evaluating the static explosion power of the large-scale ammunition tunnel, and aiming at the characteristics of large equivalent weight and high weight of the large-scale ammunition, the tunnel system can effectively resist the explosion power of the ammunition at a blasting center, and meanwhile, the end part of the whole tunnel system is simple in sealing, the large-scale ammunition is convenient to transport and load, and an overpressure test cable is effectively protected. The whole tunnel system adopts a three-section ladder structure and is half-buried in the ground, so that the tunnel strength can be enhanced, and the cost can be effectively reduced.
As shown in fig. 1 to 2, in the anti-explosion tunnel suitable for static explosion power evaluation of a large-sized ammunition tunnel according to an embodiment of the present invention, a tunnel main body 1 is of a three-section ladder structure and is buried in a ground 7, so as to improve the tunnel anti-explosion performance to the maximum extent, the thickness of the tunnel main body at the explosion center is the highest, the thickness of the tunnel main body near the explosion center is the second, and the thickness of the rest is the lowest, an embedded steel plate 9 is embedded and reinforced on the side wall of the tunnel main body 1, the thickness of the embedded steel plate is at least 20mm, the embedded steel plate 9 may be only located at the explosion center or embedded and arranged on the whole side wall of the tunnel main body, and the whole tunnel main body 1 is cast by using C40 high-strength concrete and HRB 400-grade steel bars, so as to strengthen the strength of the explosion center and prevent the damage and pressure release caused by insufficient strength of the tunnel when the large-sized ammunition explodes.
It should be noted that, in the present invention, the main body 1 is a semi-sealed type, which can simulate underground works more truly. To maximise the blast overpressure of the ammunition towards the exit end, a steel-filled entry door 2 seal is used at the entrance end of the excavation to resist the force of the ammunition explosion.
It should be noted that large ammunition is heavy in tonnage and strong in explosive power, and the safety protection of the ammunition must be paid attention to all the time. In the invention, the hand chain block 3, the embedded steel rail 8, the bottom protection block 6 and the fixing bracket 4 are arranged on the tunnel main body 1, so that the safety consideration of the transporting and loading process can be ensured.
When the test piece 5, such as a large bomb, is transported to the position of the explosive core, the test piece is lifted to a preset height position through the chain block 3, the U-shaped bottom protection block 6 is arranged in the groove at the bottom of the explosive core in a sinking mode, and the bottom protection block 6 can be made of wood.
It should be noted that in the embodiment of the invention, the ultimate aim is to accurately acquire the overpressure of the shock wave generated by static explosion of the ammunition in the tunnel so as to accurately evaluate the power characteristics of the ammunition. Therefore, in addition to the pre-embedded sensor line 10 and overpressure sensor 11, it is also necessary to match the overpressure data acquisition system and the camera system (not shown).
The overpressure sensor 11 is arranged in the embedded sensor pipeline 10, the overpressure sensor 11 penetrates through the thickness of the side edge of the cross section of the main body of the tunnel, and one or more overpressure sensors 11 can be arranged.
The cross-sectional position 12 of the overpressure sensor arrangement, as shown in fig. 1, may be a position away from the center of pop, such as a cross-sectional position of the excavation body near the outlet end, away from the inlet end.
The invention relates to an anti-explosion tunnel suitable for evaluating the static explosion power of a large-scale ammunition tunnel, which is used for evaluating the static explosion power of ammunition in the tunnel. When large-scale ammunition generates explosion shock waves in the tunnel, due to the blocking of the tunnel wall and the ground, the generated high-pressure high-temperature air cannot diffuse around the normal path, the shock waves interact and reflect with the wall and the ground for many times, the relation change of overpressure, explosion center distance and time of each point in the tunnel is very complex, the air shock waves can be gradually rectified into plane waves after being reflected and spread along the tunnel direction, and a test system and a fighter in the tunnel are seriously damaged. Through research, compared with the propagation of the shock wave in a free space, the shock wave in the tunnel has the characteristics of large emission overpressure, slow attenuation speed, long overpressure action time and the like.
Shock wave propagation in an anti-explosion tunnel can be divided into three processes:
(1) and (4) free propagation. When the shock wave generated by explosion does not contact the inner wall of the tunnel, the propagation rule of the shock wave accords with the propagation rule of the shock wave in the free space, and the calculation method of the overpressure of the shock wave in the free space can be applied to the calculation empirical formula.
(2) The principle of reflection superposition. The process is a process that shock waves contact a wall and interact and are superposed with the ground, the propagation condition of the shock waves is very complex, the shock waves have large intensity fluctuation, and a stable wave front is not formed yet.
(3) The plane wave propagates. The wave is gradually rectified and oriented by the tunnel along with the increase of the propagation distance, and a stable plane wave is formed and propagates along the tunnel direction.
The invention relates to an anti-explosion tunnel suitable for evaluating the static explosion power of a large-scale ammunition tunnel, which is designed for anti-explosion of the tunnel based on three processes of shock wave propagation in the tunnel. The effect of the invention is shown in fig. 3.
For a more clear understanding of the invention, the following description is given of the working of the invention:
firstly, constructing a steel bar framework according to the design of an underground tunnel, embedding a track, a chain block and a sensor pipeline at corresponding positions, and arranging thick steel plates at two sides of the underground tunnel at a core explosion position; secondly, pouring concrete and steel mixture, inserting the concrete and steel mixture into the door, and maintaining the door according to time until the strength of the door meets the specified requirements; installing a shock wave overpressure sensor, connecting the shock wave overpressure sensor with a shock wave overpressure acquisition system, and constructing a shock wave overpressure measurement system; arranging a camera monitoring system and debugging the camera monitoring system; then, carrying out a pre-test of small equivalent ammunition, and confirming the stability of a shock wave overpressure measuring system and the stability of a camera monitoring system; then, arranging the test piece on a fixed support, hoisting the test piece and the fixed support to the inlet end of the tunnel main body through a crane, and sliding the test piece and the fixed support to the blasting center through an embedded track; then, placing a bottom protection block at the bottom of the explosion center, and hoisting the test piece and the fixed support to a shock wave overpressure measuring system and a camera monitoring system at a specified height by using a chain block; evacuating irrelevant personnel at the test site, and carrying out all-dimensional safety warning in the test area; arranging a detonator by an initiating explosive device qualification operator, and drawing the detonator to a detonating position; and after safety is confirmed, the detonator is started, and after the test piece is completely exploded and receives a safety command, related personnel can enter a test site.
The explosion-proof tunnel suitable for the static explosion power evaluation of the large-scale ammunition tunnel provided by the invention is designed based on three transmission processes of shock wave overpressure in the tunnel, and can be effectively applied to the static explosion power evaluation test of the large-scale ammunition tunnel.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof;
the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. Antiknock gallery suitable for power aassessment is exploded to large-scale ammunition gallery static, its characterized in that includes:
the tunnel main body is of a three-section structure and is formed by pouring high-strength concrete and reinforcing steel bars, the thickness of the blasting center of the tunnel main body is highest, the thickness of the blasting center is second, and the thickness of the rest part is lowest; the main body of the tunnel is buried in the ground in a semi-burying manner;
the inlet end of the tunnel main body is provided with a steel mixed insertion door for sealing the inlet end of the tunnel main body so as to prevent overpressure leakage caused by damage caused by detonation of ammunition;
the bottom surface of the tunnel main body between the sealed inlet end and the blasting center is embedded with an embedded steel rail for transporting and installing a test piece and a fixed support, and the top of the blasting center of the tunnel main body is provided with a lifting device for lifting the test piece and the fixed support to a preset height for suspension;
a U-shaped bottom protection block is arranged in a groove in the bottom of the blasting center of the tunnel main body in a sinking mode and used for preventing the bottom of the test piece from being damaged;
the side wall of the blasting center of the tunnel main body is provided with an embedded steel plate for increasing the strength of the tunnel at the blasting center;
sensor pipelines are pre-buried in preset positions on the side wall of the tunnel main body and used for protecting an overpressure sensor installed in the tunnel main body, and the overpressure sensor is used for collecting shock wave overpressure generated when a test piece explodes and used as data for evaluating the static explosion power of the large-scale ammunition tunnel.
2. The anti-explosion tunnel suitable for static explosion power evaluation of the large-scale ammunition tunnel according to claim 1, wherein the tunnel main body is cast by C40 high-strength concrete and HRB 400-grade steel bars.
3. The anti-explosion tunnel suitable for the static explosion power evaluation of the large-scale ammunition tunnel according to claim 1, wherein the lifting device is a chain block which is pre-buried and fixed at the top end of the explosion center of the tunnel main body.
4. The blast-resistant tunnel suitable for static blast power evaluation of large ammunition tunnel according to claim 1, wherein the bottom protection block is made of wood.
5. The anti-explosion tunnel suitable for static explosion power evaluation of the large-scale ammunition tunnel according to claim 1, wherein the thickness of the embedded steel plate is at least 20 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210615070.2A CN114909960A (en) | 2022-06-01 | 2022-06-01 | Antiknock gallery suitable for quiet power of exploding of large-scale ammunition gallery aassessment |
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| CN202210615070.2A CN114909960A (en) | 2022-06-01 | 2022-06-01 | Antiknock gallery suitable for quiet power of exploding of large-scale ammunition gallery aassessment |
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| RU2442104C1 (en) * | 2010-09-17 | 2012-02-10 | Сергей Михайлович Мужичек | Method and device for operational efficiency evaluation of ammunition destructive power |
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| CN111982451A (en) * | 2020-09-02 | 2020-11-24 | 中国人民解放军军事科学院国防工程研究院 | Shock wave tunnel test device and test method |
| CN215893951U (en) * | 2021-08-26 | 2022-02-22 | 南京君缘科爆工程技术有限公司 | Protection door antiknock performance detection device |
| CN216081851U (en) * | 2021-10-20 | 2022-03-18 | 南京市公安局 | Tunnel type comprehensive test system for explosive shock waves generated by destroying waste explosives |
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2022
- 2022-06-01 CN CN202210615070.2A patent/CN114909960A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2442104C1 (en) * | 2010-09-17 | 2012-02-10 | Сергей Михайлович Мужичек | Method and device for operational efficiency evaluation of ammunition destructive power |
| CN204758586U (en) * | 2015-06-11 | 2015-11-11 | 中国人民解放军总参谋部工程兵科研三所 | Indoor explosion test device |
| CN105353102A (en) * | 2015-12-08 | 2016-02-24 | 西安近代化学研究所 | Comprehensive effect evaluation method for explosion of thermobaric explosive in semi-closed tunnel |
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| CN110020482A (en) * | 2019-04-10 | 2019-07-16 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | It explodes before a kind of armored concrete protective door the calculation method of tunnel internal impact wave superpressure reduction coefficient |
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| CN216081851U (en) * | 2021-10-20 | 2022-03-18 | 南京市公安局 | Tunnel type comprehensive test system for explosive shock waves generated by destroying waste explosives |
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