CN108593468A - The model test apparatus that detonation load influences building and tunnel - Google Patents
The model test apparatus that detonation load influences building and tunnel Download PDFInfo
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- CN108593468A CN108593468A CN201810294637.4A CN201810294637A CN108593468A CN 108593468 A CN108593468 A CN 108593468A CN 201810294637 A CN201810294637 A CN 201810294637A CN 108593468 A CN108593468 A CN 108593468A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/313—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by explosives
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
A kind of model test apparatus of influence the present invention relates to detonation load to building and tunnel, model casing is interior to insert muck soil；Multistory frame building model is positioned over model casing center；The identical tunnel-liner model of two specifications is respectively placed in model casing left and right side, and multiple displacement meters are fixed on upper surface or the inside soil body of the soil body, and multiple dial gauges are fixed on multistory frame building model surface and the side surface of the soil body；Multiple resistance strain gages are laterally pasted onto on two tunnel-liner models and building chassis, and multiple displacement meters connect computer data acquisition system with multiple resistance strain gages by deformeter；Multiple balloons are separately mounted in the blast analogue region of two tunnel-liner models.The present apparatus being capable of easily and effectively simulation difference bursting strength; different blast sites; and different types of burst, provide certain theoretical reference for formulating building and tunnel antiknock security technology standard and building and tunnel anti-explosion safety safeguard measure under explosive load.
Description
Technical field
The present invention relates to a kind of experimental rigs of ground Tunnel Engineering, and in particular to a kind of detonation load is to building
And the model test apparatus that tunnel influences.
Background technology
Explosion is that one of the factor of important threat is constituted to city or even national security, and recent domestic is due to accidentally quick-fried
The probability that fried and the terrorist bombings event occurs gradually increases.
Space, the space of shopping, the space of leisure of people's life are likely to become the target attacked at any time.Explosion
The response of building and explosion-proof, antiknock research have become current research hotspot problem, multistory frame knot under used load
It is also that countries in the world today all extremely closes that structure building the terrorist bombings, which injure assessment and protection the terrorist bombings engineering and technological research,
The hot spot of note.Therefore, it is built under tunnel damage effect and tunnel internal blast load caused by exploding for ground structures
The response of object, which carries out research, to have great importance, it is necessary to which protection and its security performance assessing to tunnel and building carry out
Deep discussion provides reference for the anti-explosion design and reinforcing of structures, to reduce the huge life for even avoiding explosion from bringing
Property loss.
Invention content
It, should present invention aims at a kind of model test apparatus that detonation load influences building and tunnel is provided
Device is the model test apparatus of the influence to building and tunnel by detonation load, is made for realizing to explosive load
The simulation influenced with lower building and tunnel, the accurate change in displacement for measuring earth's surface and tunnel-liner strain and building deformation and
Stressing conditions are simultaneously analyzed.
The present invention uses following technical scheme to solve its technical problem：
A kind of model test apparatus of the influence of detonation load to building and tunnel, including model casing, two identical rule
Tunnel-liner model, multistory frame building model, displacement meter holder, multiple displacement meters, dial indicator bracket, the multiple percentages of lattice
Table, multiple resistance strain gages, multiple deformeters, multiple balloons, explosion trigger device, wherein：
The model casing is rigid seal babinet, is welded by the additional equal leg angle of steel plate；Muck soil is inserted in model casing；
The multistory frame building model is positioned over model casing center；
The identical tunnel-liner model of two specifications is respectively placed in model casing left and right side, and parallel with model casing short side；
Multiple displacement meters are mounted on model casing top surface by displacement meter holder respectively, and are fixed on upper surface or the soil body of the soil body
Inside, multiple displacement meters connect computer data acquisition system by deformeter respectively；
Multiple dial gauges are fixed on multistory frame building model surface by dial indicator bracket respectively；And multiple dial gauges point
Not by dial indicator bracket be mounted on model casing at left and right sides of, and with being fixed on the side surface of the soil body in model casing；
Multiple resistance strain gages are laterally pasted onto on two tunnel-liner models and building chassis, and are connected and counted by deformeter
Calculation machine data collecting system；
Multiple balloons are separately mounted in the blast analogue region of two tunnel-liner models；
The explosion trigger device is by the trepanning on model casing, by the blast analogue of fixed small needle directive tunnel-liner model
Balloon in region, to realize that explosive load is simulated.
Further, explosive load simulation can by the control to the gentle ball placement position of balloon inflation amount size, from
And simulate the influence under different explosive levels or different blast sites to Adjacent Buildings and tunnel.
Further, heated ignition needle can be used in combination by being filled with starch in explosion bubble in the explosive load simulation
The mode of ignition, to simulate the influence in the case of powder explosion to Adjacent Buildings and tunnel.
The beneficial effects of the invention are as follows：
The present invention compared with prior art, has following remarkable advantage：
1, this experiment test device can be hand-made, and popularity is good in related scientific research, and experimental test scheme has relatively strong
Autgmentability can be further applicable in the research influenced on building and tunnel in the case of serial blast；
2, the explosive load simulator of this experiment can preferably simulate different bursting strength difference blast sites and can be more
Easily change degree size and the place of explosion；
3, the explosive load simulator of this experiment can preferably simulate different types of explosion, and can change more conveniently
The type of explosion；
4, tunnel can simulate deformation of the shield tunnel under Blast Loads in Practical Project in this experiment；
5, the model test that Blast Loads influence building and tunnel is carried out using this covering device, can is highway, railway
Tunnel Engineering is smoothly built and normal operation provides good consulting and suggests, for formulating building and tunnel under explosive load
Antiknock security technology standard and building and tunnel anti-explosion safety safeguard measure provide certain theoretical reference.
Description of the drawings
Fig. 1 is test device schematic diagram in the model casing of the present invention in embodiment；
Fig. 2 is inside soil body dial gauge measuring point value arrangement map on the left of the model casing of the present invention in embodiment；
Fig. 3 is inside soil body dial gauge measuring point value arrangement map on the right side of the model casing of the present invention in embodiment；
Fig. 4 is inner tunnel lining model cross-sectional view on the left of the model casing of the present invention in embodiment；
Fig. 5 is inner tunnel lining model cross-sectional view on the right side of the model casing of the present invention in embodiment；
Fig. 6 is the building chassis resistance strain gage layout drawing of the present invention in embodiment；
Fig. 7 is resistance strain gage measuring point value arrangement map in No. 5 tunnels of the present invention in embodiment；
Fig. 8 is resistance strain gage measuring point value arrangement map in No. 6 tunnels of the present invention in embodiment；
Fig. 9 is the displacement meter measuring point value arrangement map of the present invention in embodiment.
Specific implementation mode
First, make a model casing, two tunnel-liner models, a set of explosion trigger device, a displacement meter holder,
One dial indicator bracket, multiple resistance strain gages and data sink.
As shown in Figure 1, model casing shape is in cuboid, interior space dimension is 1300 mm × 800 mm × 1000mm（It is long
× wide × high）, bottom is done by the steel plate 1 of 20 mm of thickness, two long sides use thickness to be opened for the steel plate 2 of 20 mm and in tunnel installation site
Hole, left and right side are the steel plate 3 of 20mm thickness, and bottom is connected with steel plate 1, and the thick perforated steel plate 4 in top surface 20, top surrounding is all provided with
There is anchor hole to be convenient for fixed displacement meter holder.Tunnel-liner model 5,6 is the thin aluminium alloy cylinder of 200 mm of diameter, cylinder thickness
For 5mm, tunnel-liner model 5 is positioned in model casing on the left of inside soil body and 3 inside 100mm of steel plate, lining cutting on the left of centre-to-centre spacing
For minimum point away from 1 inside 420mm of bottom steel plate and parallel with model casing short side, tunnel-liner model 6 is positioned over the soil body in model casing
3 inside 100mm of steel plate on the right side of inner right side and centre-to-centre spacing, lining cutting minimum point are touched away from 1 inside 140mm of bottom steel plate, explosive load
Transmitting apparatus is in the corresponding placement as needed of tunnel-liner model position of opening.Multistory frame building model is placed on model casing
Center is made of bottom plate 7 and building structure 8, and wherein building structure 8 includes two layers of underground basement structure and five layers of ground knot
Structure, 7 right hand edge of bottom plate are 450 mm, bottom plate leading edge and steel plate 2 on front side of model casing with 3 level interval of steel plate on the left of model casing
Level interval is 240mm.The frame structure of the building model is made of the aluminium alloy plate splicing of 10 mm, wherein building knot
The projection size of structure 8 is 320 mm × 240mm（It is long × wide）, superstructure clear height is 80 mm, and basement clear height is 100
The size of mm, bottom plate 7 are the mm of 360 mm × 280（It is long × wide）.Dial gauge 101,102,103,104,105,106,107,108
Superstructure equivalent layer crossbeam middle-end in building structure 8 is fixed on by dial indicator bracket 111 respectively.
Such as Fig. 2, shown in 3, each side there are 9 gaging holes, Fig. 2 to indicate the survey close to tunnel-liner model 5 in model casing
Hole arranges that No. 47 1 inside 240mm of gaging hole centre-to-centre spacing bottom steel plate are 190mm, No. 44 gaging hole positions with 2 horizontal distance of rear side steel plate
The 90mm above No. 47 gaging holes is 190mm with 2 horizontal distance of rear side steel plate, and No. 41 gaging holes are located at 380mm above No. 44 gaging holes,
It is 190mm with 2 horizontal distance of rear side steel plate, No. 48 gaging holes and No. 47 gaging holes are located at same level height, with No. 47 gaging hole distances
For 190mm, No. 45 gaging holes and No. 44 gaging holes are located at same level height, are 190mm, No. 42 gaging holes and 41 with No. 44 gaging hole distances
Number gaging hole is located at same level height, is 190mm with No. 41 gaging holes distances, and it is high that No. 49 gaging holes with No. 48 gaging holes are located at same level
Degree is 190mm with No. 48 gaging hole distances, and No. 46 gaging holes and No. 45 gaging holes are located at same level height, are with No. 45 gaging hole distances
190mm, No. 43 gaging holes and No. 42 gaging holes are located at same level height, are 190mm with No. 42 gaging hole distances.Fig. 3 is indicated close to tunnel
The gaging hole of road lining model 6 arranges that No. 56 1 inside 50mm of gaging hole centre-to-centre spacing bottom steel plate are with 2 horizontal distance of rear side steel plate
190mm, No. 53 gaging holes are located at 380mm above No. 44 gaging holes, are 190mm with 2 horizontal distance of rear side steel plate, and No. 50 gaging holes are located at 53
90mm above number gaging hole is 190mm with 2 horizontal distance of rear side steel plate, and No. 57 gaging holes and No. 56 gaging holes are located at same level height,
It is 190mm with No. 56 gaging hole distances, No. 54 gaging holes and No. 53 gaging holes are located at same level height, are with No. 53 gaging hole distances
190mm, No. 51 gaging holes and No. 50 gaging holes are located at same level height, are 190mm with No. 50 gaging holes distance, No. 58 gaging holes and No. 57
Gaging hole is located at same level height, is 190mm with No. 57 gaging hole distances, and No. 55 gaging holes and No. 54 gaging holes are located at same level height
Degree is 190mm with No. 54 gaging hole distances, and No. 52 gaging holes and No. 51 gaging holes are located at same level height, are with No. 51 gaging hole distances
190mm。
Such as Fig. 4, shown in 5, two tunnel-liner models use identical set.
As shown in fig. 6, resistance strain gage is closely affixed on 7 surface of building chassis, 20 resistance strain gages are shared.Wherein 59
Number resistance strain gage central point is away from chassis coboundary 20mm, and away from chassis left margin 20mm, No. 64 resistance strain gage central points are the bottom of away from
Disk coboundary 100mm, away from chassis left margin 20mm, No. 69 resistance-strain pitch of fins chassis coboundary 180mm, away from chassis left margin
20mm, No. 74 resistance-strain pitch of fins chassis lower boundary 20mm, away from chassis left margin 20mm, 60,61,62, No. 63 resistance strain gages
With No. 59 resistance strain gages between same horizontal line, two foil gauges at a distance of all be 80mm, No. 63 resistance-strain pitch of fins chassis
It is 20mm to have boundary, and 65,66,67, No. 68 resistance strain gages and No. 64 resistance strain gages are in same horizontal line, two resistance-strains
At a distance of being all 80mm between piece, it is 20mm that, which there is boundary on No. 68 resistance-strain pitch of fins chassis, 70,71,72, No. 73 resistance strain gages with
No. 69 resistance strain gages are all apart 80mm, No. 73 resistance-strain pitch of fins bottoms between same horizontal line, two resistance strain gages
It is 20mm that disk, which has boundary, and in same horizontal line, two resistance are answered for 75,76,77, No. 78 resistance strain gages and No. 74 resistance strain gages
Become between piece at a distance of all into 80mm, it is 20mm that, which there is boundary on No. 78 resistance-strain pitch of fins chassis, and each resistance strain gage extraction is led
Line is connected in controller 109 and is connect again with computer data acquisition system.
As shown in fig. 7, resistance strain gage be mounted on tunnel duct piece inside, share 16 resistance strain gages 9,10,11,12,
13、14、15、16、17、18、19、20、21、22、23、24.Wherein resistance strain gage is distributed in four sections, four on each section
It is a.With the tunnels Fig. 5 left side, at a distance of 95mm, resistance strain gage 9,11,12,15 is distributed in first tunnel monitoring cross section；Second
Tunnel monitoring cross section is located in Fig. 5 on the right side of first monitoring cross section at 120mm, and resistance strain gage 10,13,14,16 is distributed with；The
65mm ~ 265mm on the right side of two observation interfaces（Dashed region in figure）For blast analogue region；Third tunnel monitoring cross section is located at
Resistance strain gage 17,19,20,23 is distributed at 330mm on the right side of second monitoring cross section in Fig. 5,；4th tunnel monitoring is cut
Face is located in Fig. 5 on the right side of third monitoring cross section at 120mm, and resistance strain gage 18,21,22,24 is distributed with；Each resistance-strain
Piece all extraction wires are connected in controller 109 and are connect again with computer data acquisition system.
As shown in figure 8, resistance strain gage be mounted on tunnel duct piece inside, share 16 resistance strain gages 25,26,27,28,
29、30、31、32、33、34、35、36、37、38、39、40.Wherein resistance strain gage is distributed in four sections, four on each section
It is a.With the tunnels Fig. 6 left side, at a distance of 95mm, resistance strain gage 25,27,28,31 is distributed in first tunnel monitoring cross section；Second
Tunnel monitoring cross section is located in Fig. 6 on the right side of first monitoring cross section at 120mm, and resistance strain gage 26,29,30,32 is distributed with；The
65mm ~ 265mm on the right side of two observation interfaces（Dashed region in figure）For blast analogue region；Third tunnel monitoring cross section is located at
Resistance strain gage 33,35,36,39 is distributed at 330mm on the right side of second monitoring cross section in Fig. 6；4th tunnel monitoring cross section
At 120mm on the right side of third monitoring cross section in Fig. 6, resistance strain gage 34,37,38,40 is distributed with；Each resistance strain gage
All extraction wire is connected in controller 109 and is connect again with computer data acquisition system.
As shown in figure 9, displacement meter is fixed on by displacement meter holder on model casing top surface 4, there are 13 on model casing top surface 4
Outer diameter is the reserved aperture of 25mm, passing through and fixing convenient for displacement meter.Wherein 88,89,90, No. 91 apertures are all located at model casing
On center line, 630mm all on the left of distance model case, No. 88 small pitch model casing upper limb 60mm, No. 89 apertures and No. 88 aperture water
Flat spacing is 100mm, and No. 89 small pitch central opening edges are 80mm, No. 91 small pitch model casing lower edge 60mm, No. 90 apertures
It is 100mm with No. 91 aperture level intervals, No. 90 small pitch central opening edges are 80mm；79,80,81,92,93, No. 94 small
Hole is located along the same line, and is all 240mm at a distance from model casing upper limb, and 65mm on the left of No. 79 small pitch model casings is No. 80 small
Hole is located at 135mm on the right side of No. 79 apertures, and No. 81 apertures are located at No. 80 right side 135mm, are located at 115mm on the left of central opening edge,
No. 92 apertures are located at 115mm on the right side of central opening edge, and No. 93 apertures are located at No. 92 right side 135mm, and No. 94 apertures are located at No. 93
Right side 135mm, away from 65mm on the right side of model casing；82,83,83,95,96, No. 97 apertures are located along the same line, with model casing upper limb
Distance be all 380mm, 65mm on the left of No. 82 small pitch model casings, No. 83 apertures are located at 135mm on the right side of No. 82 apertures, No. 84 small
Hole is located at 135mm on the right side of No. 83 apertures, is located at 115mm on the left of central opening edge, and No. 95 apertures are located at the central opening edge right side
Side 115mm, No. 96 apertures are located at No. 95 right side 135mm, and No. 97 apertures are located at No. 96 right side 135mm, away from 65mm on the right side of model casing；
85,86,87,98,99, No. 100 apertures are located along the same line, and are all 240mm, No. 85 small pitchs at a distance from model casing lower edge
65mm on the left of model casing, No. 86 apertures are located at No. 85 right side 135mm, and No. 87 apertures are located at 135mm on the right side of No. 86 apertures, in being located at
115mm on the left of heart open edge, No. 98 apertures are located at 115mm on the right side of central opening edge, and No. 99 apertures are located at No. 98 aperture right sides
Side 135mm, No. 100 apertures are located at 135mm on the right side of No. 99 apertures, away from 65mm on the right side of model casing.（Note：The number of displacement meter can be with
It is adjusted according to the precision of research project）By 79,80,81,85,86,87,88,91,92,93,94,98,99, No. 100 apertures
In totally 14 displacement meters be fixed on soil body surface and measure sedimentation value at earth's surface, by totally 2 displacement meter depths in 83, No. 96 apertures
Under entering to earth's surface at 100mm, by totally 2 displacement meters are deeply at 380mm under earth's surface in 82, No. 95 apertures, by 84, No. 97 apertures
In totally 2 displacement meters deeply to measuring the sedimentation value of deep soil at 660mm under earth's surface.Wherein each displacement meter should be kept
Straight up, and horizontal direction is fixed.
Start to insert muck soil into model casing, when soil thickness reaches 50mm, the 3 corresponding opening position of steel plate on right side
It sets to place and dial gauge and continues to fill out muck soil, until when soil body thickness reaches 100mm, change and fill out silty clay to soil body thickness and reach
140mm, tunnel-liner model 6 is placed in 2 corresponding opening position of steel plate on the right side of model casing, continues to insert silty after fixing model
When clay to soil body thickness reaches 240mm, 3 corresponding opening position of sound production dial gauge of steel plate and continue to banket in left side, until the soil body is thick
In 3 corresponding opening position of sound production dial gauge of left side steel plate when degree reaches 330mm, continues to change when banketing to 380mm and fill out clay, until the soil body
Thickness continues to fill out up to tunnel-liner model 5 is placed in 2 corresponding opening position of steel plate on the left of model casing when 420 after fixing model
Enter clay to soil body thickness to reach 430mm in 3 corresponding opening position of sound production dial gauge of right side steel plate and continue to insert clay, until the soil body
Thickness in 3 corresponding opening position of sound production dial gauge of right side steel plate and continues to banket when reaching 520mm, until when soil body thickness reaches 540mm
Multistory frame structure building is placed in center corresponding position and continues to banket, until soil body thickness changes back-up sand soil when reaching 660mm, until
In 3 corresponding opening position of sound production dial gauge of left side steel plate when soil body thickness reaches 710mm, continues filling sand to soil body thickness and reach
800mm, completion of banketing at this time.
It is listed below several situations simulated using the model casing of the present invention.
Simulation one：Balloon is installed in the blast analogue region of tunnel-liner model 5 first, balloon inflation amount is less, is allowed to
It is only full of the one third of blast analogue regional space, is not arranged in earth's surface and tunnel-liner model 6, explosion triggering dress is utilized
Triggering balloon burst is set, external displacement data Acquisition Instrument reading, percentage meter reading and external strain data Acquisition Instrument is recorded and reads
Number, finally obtains small blasting in shallow tunnel, the sedimentation situation of surrounding formation and the deformation stressing conditions of close to buildings.
Simulation two：Balloon is installed in the blast analogue region of tunnel-liner model 5 first, balloon inflation amount foot has been allowed to
It is full of blast analogue regional space entirely, is not arranged in earth's surface and tunnel-liner model 6, balloon is triggered using explosion trigger device
Explosion records external displacement data Acquisition Instrument reading, percentage meter reading and external strain data Acquisition Instrument reading, finally obtains
Large-scale explosion, the sedimentation situation of surrounding formation and the deformation stressing conditions of close to buildings in shallow tunnel.
Simulation three：Balloon is installed in the blast analogue region of tunnel-liner model 6 first, starch and inflation are filled in balloon
Amount foot, is allowed to be completely filled with blast analogue regional space, not arranged in earth's surface and tunnel-liner model 5, is triggered using explosion
Device（Needle is ignited in heating）Balloon burst is triggered, external displacement data Acquisition Instrument reading, percentage meter reading are recorded and is scooped out outside
Become data collecting instrument reading, finally obtain in deep tunnel large-scale powder explosion, the sedimentation situation of surrounding formation and neighbouring builds
Build the deformation stressing conditions of object.
Simulation four：Balloon is installed in the blast analogue region of tunnel-liner model 5 first, balloon inflation amount foot has been allowed to
It is full of blast analogue regional space entirely, balloon, balloon inflation amount then are installed in the blast analogue region of tunnel-liner model 6
Foot, is allowed to be completely filled with blast analogue regional space, triggers balloon burst simultaneously using explosion trigger device, records external displacement
Data collecting instrument reading, percentage meter reading and external strain data Acquisition Instrument reading, finally obtain in shallow embedding and deep tunnel
Large-scale explosion, the sedimentation situation of surrounding formation and the deformation stressing conditions of close to buildings occur simultaneously.
Embodiments of the present invention are illustrated above, but the present invention is not limited thereto, can also without departing from
It is suitably changed in the range of the main points of the present invention.
Embodiment effect：
The above embodiment of the present invention fills the test method of building and tunnel influence and model test by detonation load
It sets, different bursting strengths, the influence of different blast sites and different types of burst to building and tunnel, to reach can be obtained
Tunnel-liner change caused by different blast site difference bursting strength difference types of burst under Blast Loads is measured to accurate
The technique effect of shape, building stress and deformation, the sedimentation of the earth's surface soil body and soil mass displacement at the deep layer.
Claims (3)
1. a kind of model test apparatus of influence of detonation load to building and tunnel, including model casing, two it is identical
Tunnel-liner model, multistory frame building model, displacement meter holder, multiple displacement meters, dial indicator bracket, the Duo Gebai of specification
Divide table, multiple resistance strain gages, multiple deformeters, multiple balloons, explosion trigger device, it is characterised in that：
The model casing is rigid seal babinet, is welded by the additional equal leg angle of steel plate；Muddy Bottoms are inserted in model casing
Soil；
The multistory frame building model is positioned over model casing center；
The identical tunnel-liner model of two specifications is respectively placed in model casing left and right side, and parallel with model casing short side；
Multiple displacement meters are mounted on model casing top surface by displacement meter holder respectively, and are fixed on upper surface or the soil body of the soil body
Inside, multiple displacement meters connect computer data acquisition system by deformeter respectively；
Multiple dial gauges are fixed on multistory frame building model surface by dial indicator bracket respectively；And multiple dial gauges
Respectively by dial indicator bracket be mounted on model casing at left and right sides of, and with being fixed on the side surface of the soil body in model casing；
Multiple resistance strain gages are laterally pasted onto on two tunnel-liner models and building chassis, and are connected and counted by deformeter
Calculation machine data collecting system；
Multiple balloons are separately mounted in the blast analogue region of two tunnel-liner models；
The explosion trigger device is by the trepanning on model casing, by the blast analogue of fixed small needle directive tunnel-liner model
Balloon in region, to realize that explosive load is simulated.
2. the model test apparatus of influence of the detonation load according to claim 1 to building and tunnel, special
Sign is：The explosive load simulation can be by the control to the gentle ball placement position of balloon inflation amount size, not to simulation
With the influence to Adjacent Buildings and tunnel under explosive levels or different blast sites.
3. the model test apparatus of influence of the detonation load according to claim 1 to building and tunnel, special
Sign is：The heated side ignited needle and ignited can be used in combination by being filled with starch in explosion bubble in the explosive load simulation
Formula, to simulate the influence in the case of powder explosion to Adjacent Buildings and tunnel.
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| CN201810294637.4A CN108593468A (en) | 2018-03-30 | 2018-03-30 | The model test apparatus that detonation load influences building and tunnel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109356651A (en) * | 2018-10-08 | 2019-02-19 | 安徽理工大学 | A kind of tunnel intrinsic displacement deformation monitoring device and its monitoring system |
| CN109507048A (en) * | 2019-01-08 | 2019-03-22 | 中国地质大学（武汉） | The pilot system and method that simulation tunnel blasting excavation influences existing lining cutting |
| CN109916706A (en) * | 2019-03-13 | 2019-06-21 | 中北大学 | A kind of experimental rig of the clamped component capability of antidetonance of concrete |
| CN110044290A (en) * | 2019-04-22 | 2019-07-23 | 哈尔滨工程大学 | A kind of warship explosion Damage recognition integrated form measuring instrument |
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| CN109916706A (en) * | 2019-03-13 | 2019-06-21 | 中北大学 | A kind of experimental rig of the clamped component capability of antidetonance of concrete |
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