CN102262003A - Geotechnical engineering anti-explosion structural model testing device - Google Patents
Geotechnical engineering anti-explosion structural model testing device Download PDFInfo
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Abstract
The invention belongs to the technical field of geotechnical engineering model testing equipment and provides a geotechnical engineering anti-explosion structural model testing device. The device consists of a confined box body and a lower explosion pit through assembly and is provided with a wave elimination mechanism, a locking mechanism and a sliding positioning mechanism which are matched; the wave elimination mechanism comprises an aluminum wave elimination grid (21) and a wooden wave elimination plate (20); the sliding positioning mechanism comprises a bidirectional jack cylinder (15), a guide rail (17) and a limiting block (19); and the locking mechanism consists of a locking pull rod (3), a confined connecting block (18) and a nut (2). In equipment with a medium dimension, the geotechnical engineering anti-explosion structural model testing device can simulate different explosion forms, meets the requirements on convenience and feasibility of excavating grottos and mounting enclosing structures and measuring equipment thereof, and can be repeatedly utilized and contributes to observing structural damage conditions in a test; and test results can provide an important basis for underground anti-explosion engineering design and scientific research.
Description
Technical field
The invention belongs to Geotechnical Engineering model test equipment technical field, mainly propose a kind of Geotechnical Engineering explosion resistant structure model test apparatus.
Background technology
Because the structure capability of antidetonance is very important, lot of domestic and foreign scholar has launched correlative study, just external respectively below and domestic representative research brief description:
Example one: explosive load density that people such as U.S. Charles E.Joachim produce underground explosives magazine occasional burst by model test and rock mass overcoat thickness and intensity are studied the influence of tunnel external damage degree, air-shock wave that blast causes and the extent of injury of fragment.
Model test physical dimension guide is 1:25, the long 1m of underground explosives magazine model passage, and area of section is 84.4cm
2(high 9.6cm, wide 9.6cm) sees Fig. 1; Model cavern head is 72cm, and area of section is 294.4cm
2(wide 20cm, high 16cm) sees Fig. 2.Simulation material is a paving brick, it is of a size of 19.7cm * 9.3cm * 5.8cm, fragment of brick to become 30 ° of angles to build (face with 19.7cm * 9.3cm contacts) by laying bricks or stones with vertical plane, is formed the surface gradient at 30 ° of angles, and the thin sand of lid layer equal thickness is with the simulated soil overlayer on the brick layer.
Whole stock mould type is built by laying bricks or stones in strengthening concrete frame, and concrete frame is outward native medium.Before building the brick layer by laying bricks or stones, be converted into the size shape of cavern and be placed on the position, cavern with flash plating zinc steel disc earlier, begin to lay bricks along the steel disc outside surface then.Pour into the mortar of thick about 4cm in space between steel disc and the brick.The whole test device is seen Fig. 3.Do three tests altogether, testing 1 explosive dose is 1.27kg, and testing 2 doses is 0.21kg, and testing 3 doses is 1.27kg.Explosive is selected the PETN explosive of 0.085 kg/m, and the long 48cm of medicine is placed on the veneer, then veneer is put into the model cavern.
Basic condition, study condition and strength and the related item division of the scientific research institutions that carry out the blast dynamic test that China is representative are as follows:
Example two: China Mining Univ. (Beijing), in theory analysis, investigation and use for reference on the basis of domestic and international blast site (comprising blast tower, blast cavern, explosive container etc.) design experiences, design has also been built the blast cavern, it is shaped as goalpost in conjunction with shape: the length of cylindrical tube is 2.5m, cylinder is 1m with the inside radius that seals the hemispherical shell face, and the length of blast inner chamber is 1m * 2+2.5m=4.5m.Its barrel layer of structure is followed successively by: internal layer is the thick A3 steel plate of 10mm, and the middle level is the thick plank bed course of 40mm, and skin is the thick reinforced concrete floor of 400mm.This explosion chamber outdoor total length is: 450mm * 2+4500mm=5400mm, as shown in Figure 4.For the ease of experimental observation, above cylindrical shell, be provided with watch window, and bullet proof glass has been installed.The limit simulation blast dose of this blast cavern is 1000gTNT.
The characteristics of this blast cavern are: hole, the cavern body that 1. explodes adopts complete symmetrical expression design, the blasting charge is ignited at the cylindrical shell center, explosive force has symmetry to the impulsive force of blast hole, cavern body, can the not set off an explosion whole translation trend of hole, cavern body, and mainly only produce microdeformation and the vibrations that are symmetrical in explosion center; 2. the A3 steel plate selected for use of internal layer has good plastic property, under the less middle level plank liner of elasticity supports, can under the explosive force effect, produce certain radial displacement, consume the explosion energy that is transmitted on the inwall significantly, bury the propagation of overburden layer earthward thereby reduced vibration mechanical energy, and then reduce influence the surrounding buildings thing.
Example three: China university has designed indoor large scale explosive test device, this device main body is a underground semi-enclosed structure, the inner dead size of test pit is: length x width x depth=12m * 6m * 3m, explosive test hole hole wall is followed successively by 6mm steel plate, 700mm reinforced concrete, 500mm sand shock insulation layer, 240mm brick wall, the thick clay seam of 500mm, outside 240mm from inside to outside and safeguards brick wall, outside clay seam, the end, hole, be followed successively by 6mm steel plate, 700mm reinforced concrete, 500mm sand shock insulation layer, outside clay seam from top to bottom, and structure is seen shown in Figure 5.
Considered in the device development that explosion wave incides reflection and the transmission phenomenon that another kind of dielectric surface produces from a kind of medium, by permutation and combination to different materials, reach the purpose of the size of control transmitted wave and reflection wave, thereby improved the whole capability of antidetonance of this test unit greatly.This device can be to the capability of antidetonance research experiment of structure or material.
From above-mentioned these testing equipments, its kind and scale are varied, and comprehensive have a following deficiency:
One, existing explosion resistant structure model test equipment generally is divided into two kinds, and the one, only at the custom-designed testing equipment of a certain explosion resistant structure, as example one, such equipment does not have standardization, can not reuse, and will produce economic waste; The 2nd, though equipment is standardization, but equipment can not well satisfy the capability of antidetonance research of Geotechnical Engineering underground structure, as example two, equipment only is provided with viewport, and the tunnel direction is vertical with the viewport direction, for tunnel, model back in place excavation, assign simulation process operations such as anchor cable to realize, also be unfavorable for observing model and destroy situation, and for example example three, though equipment relatively meets the performance study of explosion resistant structure in the rock soil medium, but moulded dimension is bigger, floor area is big, and test model is imbedded underground entirely, gives building of model, cavern excavation, apply anchor cable building enclosures such as (bars), and the measurement of the ess-strain of anchor cable etc. brings very big difficulty, but the equipment range of application of making is restricted.
When two, existing explosion resistant structure model test equipment was used, the types of burst that can simulate was limited.Generally can only simulate the situation of the embedding blast of concentrated charge, seldom can the simulated weapons penetration blast and nuclear contact to earth or bores situations such as blast.Therefore the application of existing explosion resistant structure model test equipment is restricted, and can't utilize it to carry out and bore ground weapon penetration blast and nuclear weapon contact to earth or explode to the research of underground structural damage effect with boring.
Summary of the invention
For addressing the above problem, the present invention proposes a kind of Geotechnical Engineering explosion resistant structure model test apparatus, and its purpose is: in the equipment of moderate dimensions, can simulate different blast forms; Satisfy Geotechnical Engineering simulation excavation, assign all convenient feasible requirement of building enclosure and measurement equipment; Allow the test dose bigger; Triable explosion resistant structure size is bigger; But the situation that simulated weapons repeats to hit; Be convenient to destruction situation of observation structure in test etc.Utilize this device can study that different blast modes, different dose, difference are invaded deeply, the different weapons single hits or repeatedly repeat to hit the different damage effects that tunnel engineering is produced, test findings can be underground antiknock engineering design and scientific research provides important evidence.
The present invention finishes the technical scheme that its invention task taked: a kind of Geotechnical Engineering explosion resistant structure model test apparatus, described model test apparatus is made of the blast hole assembly unit of lateral confinement casing and bottom, and is provided with supporting wave absorption mechanism, latch mechanism and slide locating mechanism; Described lateral confinement casing is four and in twos in opposite directions, is arranged vertically, and is arranged on the edge in rectangle underground explosion hole, constitutes the explosive test model room of rectangular parallelepiped with the underground explosion hole; The transversal section of each lateral confinement casing is identical and be trapezoidal, the end face opening, all the other each faces are special steel plate, the interior that surrounds at steel plate is furnished with reinforcement channel-section steel and angle steel, the high-strength steel fibre concrete of cast in the casing can utilize its deadweight opposing explosive load in the friction force that makes progress of device border generation and the outside power of toppling during test; Six circular holes that formed by embedded steel tube that evenly distribute on the length direction of each lateral confinement casing are in order to wearing the locking pull bar; On the base plate of described lateral confinement casing four wheels is installed, can on described slide locating mechanism, slides; Described underground explosion hole is rectangular parallelepiped, corresponding thus its length of lateral confinement casing on long limit, underground explosion hole that is arranged at is greater than the lateral confinement casing that is positioned at underground explosion hole minor face, length the intermediate length place broad ways of two long lateral confinement casings be furnished with circular viewport, can picture pick-up device be installed therein, be used for the viewing test phenomenon; Described wave absorption mechanism comprises aluminum wave absorption grid and is positioned at the wooden wave absorption plate of bottom, underground explosion hole that described aluminum wave absorption grid is connected on the header board of lateral confinement casing; Described slide locating mechanism comprises two-way jack cylinder, guide rail and limited block; Corresponding each the lateral confinement casing of described two-way jack cylinder is provided with, and the lifting jack pull bar of two-way jack cylinder links by pull bar and lateral confinement casing; Corresponding guide rail has rail groove, and limited block is arranged near on the track of underground explosion pit edge; Described latch mechanism is made up of locking pull bar, lateral confinement contiguous block and nut, the lateral confinement contiguous block is arranged on two adjacent lateral confinement casing junctions, the lateral confinement contiguous block one face down bonding of " L " shape connects on the side plate that is fixed on a lateral confinement casing, the locking pull bar with two adjacent lateral confinement casings is corresponding respectively for the connecting hole that is had on the lateral confinement contiguous block both sides of " L " shape, and be nested with respectively on the locking pull bar of two adjacent lateral confinement casings, by nut two adjacent lateral confinement casings are fixed as one; Each lateral confinement casing is provided with six roots of sensation locking pull bar, every locking pull bar penetrates in the circular hole that embedded steel tube forms on the lateral confinement casing length direction, two connecting holes on the lateral confinement contiguous block are passed at two ends respectively, cooperate with the locking pull bar of two adjacent lateral confinement casings, with this lateral confinement casing with adjacent two lateral confinement casings one that is connected and fixed.
The present invention adopts technique scheme to have following beneficial effect:
⑴ lateral confinement casing cross sectional shape is scientific and reasonable in the device, has the intensity height, from great advantage, is highly resistant to friction force that makes progress that explosive load produces on the device border and the outside power of toppling, and has improved the antiknock ability of installing self greatly.
⑵ adopt grid-like wave absorption plate in the device, utilize the saturating reflection and the superposition principle of ripple, can effectively absorb explosion wave, reduce the influence of model boundary, simulate blast impulse wave propagation in the reality more realistically.
⑶ latch mechanism that adopts in the device and slide locating mechanism can not only accurately fixedly positioning the lateral confinement casing, form high drag blast model test space, and dismounting are simple, convenient, helps carrying out of Geotechnical Engineering explosion resistant structure model test.
⑷ plant bulk is moderate, has adopted standardization, modular mentality of designing, and good operability can reuse, and has saved test funds, time and manpower.
⑸ device has been realized in the antiknock model test, build model earlier, back excavation cavern, assign sequence of construction such as anchor pole, sequence of construction in the realistic engineering, can be good at simulating actual condition, particularly influence bigger underground structure for some operating modes of being constructed, improved accuracy of experimental results greatly, this device of the same type up to now can not be accomplished.
⑹ device has solved the blast analogue experimental technique difficult problem of multinomial complexity preferably, can simulate multiple blast form, both can simulate conventional sphere or cylinder shock wave explosion condition of boring the different parts blast in the surrounding rock of chamber of ground weapon penetration, can simulate the situation that large-scale nuclear weapon contact surface burst or mini-nukes bore the ground blast again; Both can carry out the structural system Study on Dynamic of a certain type, also can carry out the Dynamic Behavior of a certain member; Both the research of blast wave propagation law in medium can be carried out, also the research and development of different explosion wave analogue techniques can be carried out.
⑺ the applicability of device is stronger, according to different similar Design, both can select low-density, low-elasticity-modulus (as loess etc.) for use, also can select high density, high-elastic mould (as sand-cement slurry, concrete etc.) the material model test of exploding on this device for use.
Description of drawings
The model test cavern synoptic diagram that Fig. 1,2 is proposed for U.S. Charles E.Joachim etc.
The model test apparatus synoptic diagram that Fig. 3 is proposed for U.S. Charles E.Joachim etc.
Fig. 4 is the blast cavern synoptic diagram that China Mining University proposed.
The explosive test hole synoptic diagram that Fig. 5 is proposed for China university.
Fig. 6 is the diagrammatic cross-section of apparatus of the present invention.
Fig. 7 is the front elevation view of lateral confinement casing in apparatus of the present invention.
Fig. 8 is the side view of Fig. 7.
Fig. 9 is the vertical view of Fig. 7.
Figure 10 is the planimetric map of apparatus of the present invention.
Figure 11 is a lateral confinement contiguous block synoptic diagram in apparatus of the present invention.
Figure 12 is the side view of Figure 11.
Figure 13 is the vertical view of Figure 11.
Figure 14 is an aluminum wave absorption grid synoptic diagram in apparatus of the present invention.
Figure 15 is a wooden wave absorption plate synoptic diagram in apparatus of the present invention.
Figure 16 is apparatus of the present invention middle guide front view.
Figure 17 is apparatus of the present invention middle guide stereographic map.
Among the figure: 1, base plate, 2, nut, 3, the locking pull bar, 4, side plate, 5, angle cleat, 6, header board, 7, packing ring, 8, hexagon thin nut, 9, pull bar, 10, back plate I, 11, steel pipe, 12, back plate II, 13, hex screw, 14, lifting jack counter-force support, 15, two-way jack cylinder, 16, lifting jack pull bar, 17, guide rail, 18, the lateral confinement contiguous block, 19, limited block, 20, wooden wave absorption plate, 21, aluminum wave absorption grid, 22,23,24,25, the lateral confinement casing, 26, wheel, 27, underground explosion hole, 28, viewport.
Embodiment
Shown in Fig. 6-10, a kind of Geotechnical Engineering explosion resistant structure model test apparatus, described model test apparatus is cheated 27 assembly units by the blast of lateral confinement casing 22,23,24,25 and bottom and is constituted, from the plane, whole device is similar to cruciform, and is provided with supporting wave absorption mechanism, latch mechanism and slide locating mechanism; Described lateral confinement casing 22,23,24,25 is four and in twos in opposite directions, be arranged vertically, the structure of four lateral confinement casings is identical, it is the length difference, length is respectively 2.4m and 1.5m, length the intermediate length place broad ways of two long lateral confinement casings be furnished with circular viewport 28, can picture pick-up device be installed therein, be used for the viewing test phenomenon; Described in twos in opposite directions, vertically arranged four lateral confinement casings are arranged on the edge in underground explosion hole, constitute the explosive test model room of rectangular parallelepiped with the underground explosion hole; The transversal section of each lateral confinement casing is identical and be trapezoidal, last end face width is 0.4m, the bottom surface width is 0.8m, highly be 1.8m, the end face opening, all the other each faces are special steel plate framework structure, the interior that surrounds at steel plate is furnished with reinforcement channel-section steel and angle cleat 5, steel plate thickness is 2cm, and the high-strength steel fibre concrete of cast in the space that steel plate surrounds utilizes its deadweight opposing explosive load in the friction force that makes progress of device border generation and the power of toppling that outwards produces during test; Even six circular holes that formed by embedded steel tube that distribute on the length direction of each lateral confinement casing are in order to lock pull bar 3 to wearing; Four wheels 26 is installed, in order to move in orbit on the base plate of described lateral confinement casing; Described underground explosion hole 27 is a rectangular parallelepiped, long 2.4m, wide 1.5m, dark 0.5m, the hole bottom pour mold is annotated the thick C30 fine-stone concrete of 18cm, the thick C30 fine-stone concrete of hole wall cast 10cm, as shown in figure 10, corresponding thus lateral confinement casing 22,24 its length on long limit, underground explosion hole that are arranged at are greater than the lateral confinement casing 23,25 that is positioned at underground explosion hole minor face; Described wave absorption mechanism comprises aluminum wave absorption grid 21 and wooden wave absorption plate 20, and as shown in Figure 6, aluminum wave absorption grid 21 is connected by screw on the header board 6 of lateral confinement casing, and put in bottom, underground explosion hole wooden wave absorption plate 20 shops; As shown in figure 14, aluminum wave absorption grid 21 is the porous Al alloy plate, and thickness of slab is 1cm, wherein two are of a size of 2330mm * 1800mm, and two are of a size of 1470mm * 1800mm in addition, evenly are furnished with the circular hole of φ 58 in the plate, hole centre distance is 70mm, and the boring area approximates the area of not holing; As shown in figure 15, wooden wave absorption plate 20 is the porous plank, and thickness of slab 5cm is of a size of 1500 mm * 2400mm, evenly is furnished with the square hole of 70 mm * 70mm in the plate, and hole centre distance is 100mm, and the boring area approximates the area of not holing.As shown in Figure 6, described slide locating mechanism comprises two-way jack cylinder 15, guide rail 17 and limited block 19; Corresponding each lateral confinement casing is provided with two-way jack cylinder, and described two-way jack cylinder 15 connects with lifting jack counter-force support 14, and the lifting jack pull bar 16 of two-way jack cylinder links to each other with the lateral confinement casing by pull bar 9; Utilize two-way jack cylinder to realize removing of lateral confinement casing and close up, close up back lateral confinement casing fully and closely contact with the underground explosion pit edge; Corresponding each lateral confinement casing is provided with two rail grooves, described track groove depth 0.4m, wide 0.4m, long 1.8m, a guide rail is arranged in every rail groove, as Figure 16, shown in Figure 17, guide rail 17 is made up of three sections cast members, and the cast member bossing is a triangle, wide 200mm, high 80mm, long 590mm is fixed in the rail groove by foot bolt; Limited block 19 is arranged near on the track of underground explosion pit edge, is used to limit the maximum reach position of lateral confinement casing; Described latch mechanism is made up of locking pull bar 3, lateral confinement contiguous block 18 and nut 2, as shown in figure 10, lateral confinement contiguous block 18 is arranged on two adjacent lateral confinement casing junctions, the lateral confinement contiguous block one face down bonding of " L " shape connects on the side plate 4 that is fixed on a lateral confinement casing, the locking pull bar 3 with two adjacent lateral confinement casings is corresponding respectively for the connecting hole that is had on the lateral confinement contiguous block both sides of " L " shape, and be nested with respectively on the locking pull bar 3 of two adjacent lateral confinement casings, by nut 2 two adjacent lateral confinement casings are fixed as one; Described locking pull bar 3 has 24, each lateral confinement casing is provided with 6 locking pull bars, 12 long 1.8m wherein, 12 long 2.7m, every locking pull bar penetrates in the circular hole that embedded steel tube forms on the lateral confinement casing length direction, and two connecting holes on the lateral confinement contiguous block are passed at two ends respectively, cooperate with the locking pull bar of two adjacent lateral confinement casings, with this lateral confinement casing with adjacent two lateral confinement casings one that is connected and fixed, the constraint reaction of opposing explosive load can be provided during locking jointly.When adopting described Geotechnical Engineering explosion resistant structure model test apparatus to carry out model test, utilize described slide locating mechanism respectively four lateral confinement casings to be closed up to the limited block place, be trapped among around the underground explosion hole, the model test space dead size that forms is: length * wide * height=2.4m * 1.5m * 2.3m, can adopt analog material to test in this space.
Setting of apparatus of the present invention and process of the test are:
⑴ adopt slide locating mechanism respectively four lateral confinement casings to be closed up to the limited block place, is trapped among around the underground explosion hole, forms the space of model test;
⑵ adjusting gear position, lateral confinement contiguous block 18 and adjacent lateral confinement casing are combined closely, lateral confinement contiguous block 18 one sides are weldingly fixed on the lateral confinement box side, another side lock onto on another lateral confinement box side with the locking pull bar, the fixing and pull bar locking of staggered utilization welding between each lateral confinement box side and the lateral confinement contiguous block; Simultaneously for guaranteeing that four lateral confinement casings can close up smoothly along guide rail, each lateral confinement box side and be weldingly fixed between the lateral confinement contiguous block on the adjacent lateral confinement casing and be reserved with suitable assemblage gap, casing back in place is enclosed within 24 thick " U " shape backing plates of 5mm on the locking pull bar 3 at gap location, fastening nut 2 is combined closely to guarantee lateral confinement casing, locking pull bar 3 and lateral confinement contiguous block three again, thereby the lateral confinement casing is accurately fixedly positioning;
⑶ build sensors such as model, embedding pressure, acceleration in the model space, treat the model basic forming, after having certain intensity, utilize slide locating mechanism to draw back four lateral confinement casings, model is excavated, assigns building enclosure and arranges necessary operation such as other measuring instrument;
⑷ draw viewport or model and the lateral confinement casing junction of metric data transmission line from the lateral confinement casing;
⑸ adopt the method for step ⑵ to close up four lateral confinement casings;
⑹ embedding explosive can be selected different embedding methods at difference blast mode, as concentrated charge or slab charge etc.;
⑺ suitably take safeguard measure on model top, as add wave absorption sponge etc. according to the difference mode of exploding;
⑻ carry out explosive test, utilizes slide locating mechanism to draw back the lateral confinement casing after the test, and model is dissected, and observes and the analytical test result in conjunction with metric data;
⑼ also can under the situation of not drawing back the lateral confinement casing, destroy situation by the outward appearance of viewport observation structure earlier, and, determine next step content of the test after the test in conjunction with the structural failure process image of recording in the process of the test; For the test material that can reuse, can only replace the cast material of influenced part, shorten the test period, save the test funds; After explosive test is all finished, can draw back the lateral confinement casing, model is dissected.
Claims (2)
1. Geotechnical Engineering explosion resistant structure model test apparatus, it is characterized in that: described model test apparatus is made of blast hole (27) assembly unit of lateral confinement casing (22,23,24,25) and bottom, and is provided with supporting wave absorption mechanism, latch mechanism and slide locating mechanism; Described lateral confinement casing (22,23,24,25) is four and in twos in opposite directions, is arranged vertically, and is arranged on the edge in underground explosion hole (27), constitutes the explosive test model room of rectangular parallelepiped with the underground explosion hole; The transversal section of each lateral confinement casing identical and be trapezoidal, the end face opening, all the other each faces are the steel plate framework structure, six circular holes that formed by embedded steel tube that evenly distribute on the length direction of each lateral confinement casing are in order to lock pull bar (3) to wearing; Four wheels (26) is installed on the base plate of described lateral confinement casing (1); Described underground explosion hole is rectangular parallelepiped, and corresponding thus its length of lateral confinement casing (22,24) on long limit, underground explosion hole that is arranged at is greater than the lateral confinement casing (23,25) that is positioned at underground explosion hole minor face; Described wave absorption mechanism is the porous platy structure, comprises that the aluminum wave absorption grid (21) that is installed on the lateral confinement casing header board (6) and shop put the wooden wave absorption plate (20) in bottom, underground explosion hole; Described slide locating mechanism comprises two-way jack cylinder (15), guide rail (17) and limited block (19); Corresponding each the lateral confinement casing of described two-way jack cylinder (15) is provided with, and the lifting jack pull bar (16) of two-way jack cylinder (15) links by pull bar (9) and lateral confinement casing; Corresponding guide rail (17) has rail groove, and limited block (19) is arranged near on the track of underground explosion pit edge; Described latch mechanism is made up of locking pull bar (3), lateral confinement contiguous block (18) and nut (2), lateral confinement contiguous block (18) is arranged on two adjacent lateral confinement casing junctions, the lateral confinement contiguous block one face down bonding of " L " shape connects on the side plate (4) that is fixed on a lateral confinement casing, the connecting hole that is had on the lateral confinement contiguous block both sides of " L " shape locking pull bar (3) with two adjacent lateral confinement casings respectively is corresponding, and be nested with respectively on the locking pull bar (3) of two adjacent lateral confinement casings, by nut (2) two adjacent lateral confinement casings are fixed as one; Each lateral confinement casing is provided with six roots of sensation locking pull bar (3), every locking pull bar penetrates in the circular hole that embedded steel tube forms on the lateral confinement casing length direction, two connecting holes on the lateral confinement contiguous block are passed at two ends respectively, cooperate with the locking pull bar of two adjacent lateral confinement casings, with this lateral confinement casing with adjacent two lateral confinement casings one that is connected and fixed.
2. Geotechnical Engineering explosion resistant structure model test apparatus according to claim 1 is characterized in that: have circular viewport (28) on the intermediate length place broad ways of long two the lateral confinement casings of length.
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| CN103852372A (en) * | 2014-03-19 | 2014-06-11 | 中国人民解放军总参谋部工程兵科研三所 | Wave removing structure of large explosive wave simulation device |
| CN103868794A (en) * | 2014-03-19 | 2014-06-18 | 中国人民解放军总参谋部工程兵科研三所 | Driving tube adapter for large explosive wave simulator |
| CN103926161A (en) * | 2014-03-19 | 2014-07-16 | 中国人民解放军总参谋部工程兵科研三所 | Atmosphere chamber multi-diaphragm driver for large scale blast wave simulation equipment |
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| CN110672795A (en) * | 2019-10-24 | 2020-01-10 | 中国人民解放军63653部队 | Underground engineering anti-explosion model experimental device adopting explosive explosion loading mode |
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| CN103852372A (en) * | 2014-03-19 | 2014-06-11 | 中国人民解放军总参谋部工程兵科研三所 | Wave removing structure of large explosive wave simulation device |
| CN103868794A (en) * | 2014-03-19 | 2014-06-18 | 中国人民解放军总参谋部工程兵科研三所 | Driving tube adapter for large explosive wave simulator |
| CN103926161A (en) * | 2014-03-19 | 2014-07-16 | 中国人民解放军总参谋部工程兵科研三所 | Atmosphere chamber multi-diaphragm driver for large scale blast wave simulation equipment |
| CN103926161B (en) * | 2014-03-19 | 2016-04-13 | 中国人民解放军总参谋部工程兵科研三所 | For the atmospheric air chamber multimembrane sheet driver of large-scale blast wave analogue means |
| CN109060881A (en) * | 2018-07-31 | 2018-12-21 | 广西出入境检验检疫局危险品检测技术中心 | A kind of test pit for explosive single parcel post test and stacking test |
| CN109596666A (en) * | 2018-12-29 | 2019-04-09 | 北京理工大学 | It is a kind of for simulating the explosion experimental facility of underwater free field environment |
| CN110632275A (en) * | 2019-08-23 | 2019-12-31 | 山东建筑大学 | Underground engineering disturbance similar model test bed and test method |
| CN110672795A (en) * | 2019-10-24 | 2020-01-10 | 中国人民解放军63653部队 | Underground engineering anti-explosion model experimental device adopting explosive explosion loading mode |
| CN111458372A (en) * | 2020-05-18 | 2020-07-28 | 上海工程技术大学 | Explosion test box capable of being used for researching anti-explosion performance of plate member |
| CN114001987A (en) * | 2021-10-12 | 2022-02-01 | 东南大学 | Vertical observable structural column anti-explosion test device and test method |
| CN114923658A (en) * | 2022-05-18 | 2022-08-19 | 南京理工大学 | Tunnel device for researching shock wave propagation and underground structure dynamic response |
| CN115753452A (en) * | 2022-11-24 | 2023-03-07 | 南京理工大学 | Hemispherical structure explosion damage element distribution test system and method |
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