CN100463015C - Subway disaster accident simulation testing platform - Google Patents
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- CN100463015C CN100463015C CNB2006101505028A CN200610150502A CN100463015C CN 100463015 C CN100463015 C CN 100463015C CN B2006101505028 A CNB2006101505028 A CN B2006101505028A CN 200610150502 A CN200610150502 A CN 200610150502A CN 100463015 C CN100463015 C CN 100463015C
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Abstract
The experiment platform includes experimental solid model of underground in 1:5 large scale, fire source system, ventilation and smoke extraction system, fire detection alarm system, experimental measurement and collection system, and data analytic system. Structure of multistory building of the solid model includes interzone tunnels, platforms, station halls and facility rooms etc. Modularized design is adopted. Fire source system can simulate different scenes of fire, and generate hot smoke gas of fire nigh true. Power and fuming quantity of the fire source system is determined based on theoretical analysis from model similitude. The experiment platform can generate growth curve of different power of fire. The experiment platform is in use for carrying out experimental studies: happening and growing mechanism of fire, and poison gas outspread inside stations of underground as well as control technique. The invention is applicable to different structures of station.
Description
Technical field
The present invention relates to a kind of equipment that accidents such as subway station fire spread, poison gas diffusion are experimentized and study, specifically is a kind of subway disaster accident simulation testing platform.
Background technology
Be directed to the disaster accident in the particular space, the research if the full-scale solid model of employing experimentizes, then there is certain difficulty, and the simulated experiment model that adopts the certain proportion chi to conduct a research be a kind of necessity, science, economy and practicable means, existing domestic and international most experimental system for simulating platform all is based on the yardstick analogue technique, the development and design in conjunction with specific demand.For example, in buildings aspect the fire failure research, the flue gas that people such as Thomas adopt 1/10 minification model to study in the volumed space building spreads phenomenon, Morgan adopts Room Fire Smoke Control rule in the market of 1/10 minification and the model investigation of Subway Station in Atrium large space, in the middle Room BUILDINGS MODELS of W.K.Chow in 1/7 engineer's scale the fire smoke flow feature has been carried out modeling effort.Aspect underground works, China Mining University has developed the three-dimensional underground works experimental system simulation box that loads of 2000 * 2030 * 2030mm, can carry out simulated experiment to underground workss such as subway engineering, tunnel and underground excavation engineering, foundation works, special underground construction method, slope project, soil-baffling structures; Beijing Jiaotong University has set up domestic unique double-deck underground works experiment tunnel, carries out the on-the-spot sound power test of engineering and the experimental study of monitoring; Beijing University of Technology adopts the small scale subway model of 1:42 to carry out air current composition and heat transfer Study on Effect in the subway hole.Yet the applicable object of existing experimental system for simulating platform and suitable function are all comparatively single, only can satisfy the particular demands of certain class engineering; Or model scale is too small, can bring bigger similarity error in experimental study, can't satisfy the needs of disaster accident simulation testing further investigation.
At present, domestic still do not have subway station empirical model platform and be used to simulate that the underground fire hazard flue gas spreads and the experimental study of toxic gas leakage diffusion etc., therefore, how to be directed to disaster accidents such as underground fire hazard, set up multi-functional large-scale experimental system platform, carrying out the experimental simulation of subway space fire spread, toxic gas leakage diffusion etc. and the experimental study of emergency ventilation, is the problem that the urban track traffic field presses for solution.
Summary of the invention
The objective of the invention is to address the above problem, a kind of subway disaster accident simulation testing platform of the research that can experimentize to generation development mechanism, control and the Prevention Technique of disaster accidents such as subway station fire, poison gas diffusion is provided.
For this reason, the present invention proposes following technical scheme:
Subway disaster accident simulation testing platform of the present invention comprises generally: subway experimental entity model, burning things which may cause a fire disaster system, ventilation smoke exhaust system, fire detection alarm system, experiment measuring acquisition system and data analysis system.Wherein, subway experimental entity model is the large scale model of true reappearance structure of the subway, is the three-dimensional restriceted envelope that the mock disaster accident takes place; The burning things which may cause a fire disaster system is used to simulate different fire scenarios, produces to approach real fire heat smoke; The ventilation smoke exhaust system is used to simulate the ventilation smoke exhaust under subway normal mode and the disaster pattern; Fire detection alarm system is used to carry out the automatic identification and the warning of subway model interior fires; The experiment measuring acquisition system is used for DATA REASONING, collection and the processing of subway disaster accident simulation testing; Data analysis system be used to the to experimentize forecast assessment of contrast, analysis, checking and damage sequence of data.
In such scheme, described subway experimental entity model adopts the similarity theory analysis, the large scale model of foundation according to actual subway building structure, the model main body adopts fire proofing material to make up and forms, and is the multi-layer construction structure that comprises spaces such as station tunnel, platform, subway concourse, equipment room.The model internal placement has structure facilities such as shield door, building staircase, train model.Be provided with the many places glass window in model inside, be convenient to the real-time monitored of the process of testing.Subway concourse, platform, both sides station tunnel all adopt modular design, according to needing and dismantling combination to model integral body, thereby the subway station of different construction styles such as the model equipment with multi-layer construction structure can buried, the underground shallow embedding of simulate formation, overhead, island formula, side formula, middle Room formula.
In such scheme, described burning things which may cause a fire disaster system is made of the gas burner and the hot cigarette generation case that adopt proportional control, and its power and the amount of being fuming are determined by the model similarity analysis.By the flow of flowmeter control burner gas, thus the power of pilot-gas burning things which may cause a fire disaster; Burning jamb burning things which may cause a fire disaster flank is placed spike flue gas generation case, spike flue gas injection fire plume is mixed to be entrainmented, generation approaches real fire heat smoke, and is different with the true burning object that conventional fire test adopts, and this system has replaced poisonous and hazardous fire smoke with nontoxic hot cigarette.Burning things which may cause a fire disaster system conveniently moving according to the experiment needs, can be placed on the inner diverse location of subway model, the fire failure of different places in the simulation subway.
In such scheme, described ventilation smoke exhaust system comprises platform public area ventilation smoke exhaust subsystem, tread ventilation smoke exhaust subsystem, flange of rail ventilation smoke exhaust subsystem and running tunnel ventilation smoke exhaust subsystem, each ventilation smoke exhaust subsystem is relatively independent, can carry out air quantity respectively and regulate, the air quantity in each air port is determined by the model similarity analysis.
In such scheme, described fire detection alarm system is used to carry out the detection identification and warning of subway model interior fires, is arranged on station hall layer, station layer, and the concrete layout of fire recognition principle, the monitoring point all warning system with true subway inside is consistent.
In such scheme, described experiment measuring acquisition system is used for the multiple spot of subway disaster accident simulation testing, multi-functional signal measurement, collection and handles in real time, comprises the video acquisition and the processing of space temperature field, pressure field, velocity field, concentration, visibility and active development process.
In such scheme, described data analysis system is used to experimentize contrast, analysis, the checking of data, and in conjunction with the three-dimensional numerical value sunykatuib analysis, carries out the forecast assessment of disaster accident consequence.
The present invention serves the subway engineering construction, the demand of operation, be directed to the shortcoming and deficiency that exist in the prior art, proposed with large scale, the subway experimental entity model of sandwich construction, the burning things which may cause a fire disaster system, the ventilation smoke exhaust system, fire detection alarm system, the experiment table structural system that experiment measuring acquisition system and data analysis system constitute, carry out the subway station fire spread, the experimental simulation of disasters such as toxic gas leakage diffusion and the experimental study of emergency ventilation are the engineering design of subway construction, preventing and reducing natural disasters of metro operation provides reasonable, correct scientific basis.
Subway disaster accident simulation testing system platform of the present invention has following outstanding technical characterstic, technological innovation and significant technique effect:
(1) this experimental system platform can be simulated the structure of the subway of different stations form
Subway concourse, platform, station tunnel have all adopted modular design, solid model integral body can be dismantled combination, for example: the four-layer structure correspondence buried subway station, the two-layer structure correspondence the shallow embedding subway station, station layer last, station hall layer under the structure correspondence overhead subway station, station tunnel formula subway station, island in the structure correspondence of platform both sides, the distributing structure correspondence of platform of station tunnel both sides side formula subway station, have between platform and subway concourse the structure of the open communal space corresponding in formula subway station, the Room.
(2) large-scale multi-functional subway model
Based on the similarity theory analysis of the similarity criterion coefficient that is applicable to fire dynamics, flow of flue gas, determined the large scale subway real experiment model of 1:5, this is the multi-functional subway model of the current track field of traffic maximum of carrying out fire accident analysis.Simultaneously, can carry out the research of fire spread and flue gas diffusion experiment, ventilation smoke exhaust research, toxic and harmful diffusion research etc. in this model inside.
(3) the burning things which may cause a fire disaster system of simulation different capacity fire heat smoke
This is one of core of whole experiment table, the gas burner that adopts can reach the effect of control combustion power by the adjustments of gas flow, to produce different fire flash-up curves, the setting of power is based on the similarity theory analysis of different fire scenarios and determine, low profile thermal cigarette generation case is positioned over the flank of combusting device stove burner, produce the spike flue gas particle, mixed and entrainmented by injecting fire plume, produce observable fire heat smoke, the hot flue gas body toxicity that this system produces is little, simulation is true, the device conveniently moving, and fire source power is easily regulated easy to control, of paramount importance is that the experimental repeatability of burning things which may cause a fire disaster system is good, cost is low.
(4) the ventilation smoke exhaust system is controlled automatically
Each ventilation smoke exhaust subsystem is relatively independent, can carry out air quantity respectively and regulate.Each subsystem is made of the blower fan group of different numbers, adopt the wind flow cover that the air quantity of each blower fan is demarcated, to guarantee the accurate of air quantity,, make the flow in each air port conform to the experiment setting again by each fan delivery of the automatic centralized control of speed change demodulator.The automatic controlled and accuracy of system provides a great convenience for the simulation of the inner emergency ventilation of subway, and that has improved system can be handling.
Description of drawings
Fig. 1 is the platform planimetric map of the subway experimental entity model (two layers) of simulation experiment platform of the present invention;
Fig. 2 is the subway concourse planimetric map of the subway experimental entity model (two layers) of simulation experiment platform of the present invention;
Fig. 3 is the A-A sectional view of the subway experimental entity model (two layers) of simulation experiment platform of the present invention;
Fig. 4 is the schematic diagram of the burning things which may cause a fire disaster system of simulation experiment platform of the present invention;
Fig. 5 is the arrangenent diagram (the side formula angle of subway model) of the experiment measuring acquisition system of simulation experiment platform of the present invention.
Among the figure:
1. 4. flange of rail ventilation smoke exhaust systems of tunnel 2. platforms 3. tread ventilation smoke exhaust systems
5. tunnel ventilation smoke evacuation system 6. shield doors 7. structural support posts 8,9. staircase
10. equipment room 11. subway concourses 12. gateways 13. interlayers
14. platform public area ventilation smoke exhaust system 15. burning things which may cause a fire disaster system controllers, 16. burner source of the gas lines
17. hot cigarette generation case 18. combusting device stove burners 19,20,21. temperature measurement probes
22, speed, temperature, pressure, gas componant measuring sonde in 23,24,25,26. platforms
27, speed, temperature, pressure, gas componant measuring sonde in 28,29. subway concourses
30, the interior video acquisition camera of video acquisition camera 32,33. platforms in 31. tunnels
34. video acquisition camera 35,36. model external video acquisition camera in the subway concourse
Embodiment
Subway disaster accident simulation testing platform of the present invention mainly comprises: subway experimental entity model and be laid in burning things which may cause a fire disaster system, ventilation smoke exhaust system, fire detection alarm system, experiment measuring acquisition system and data analysis system in this solid model.Below, will be in conjunction with the accompanying drawings, a specific embodiment of simulation experiment platform of the present invention is done further detailed description.
1, subway experimental entity model
Fig. 1 and Fig. 2 are the planimetric maps of the subway experimental entity model (two layers) in the simulation experiment platform of the present invention, and Fig. 3 is the sectional view of the subway experimental entity model (two layers) in the simulation experiment platform of the present invention.Because model entity has the dirigibility of dismounting repacking, Fig. 1～3 only provide the synoptic diagram of two layers of the most frequently used island formula structure of the subway, show the basic structure and the distribution of station hall layer, station layer, building staircase, equipment room, smoke evacuation/exhaust outlet, gateway, the subway station of other different architecture structure forms then can further be realized on this basis.
Shown in Fig. 1～3, subway experimental entity model is the three-dimensional restriceted envelope that the mock disaster accident takes place, be that a long * wide * height is the two-layer structure of 20m * 4m * 2.2m (similar proportion 1:5), the agent structure bottom represent underground two layers station layer (long * wide * as highly to be 16m * 2m * 1m), top represent B1 station hall layer (long * wide * the high 17m * 3.6m of being * 1m).Station hall layer is connected with the external world (generally be provided with the building staircase on straight-through ground, owing to little to the Research Significance of this experiment porch, so the details that the gateway is in communication with the outside is omitted in platform) by 4 gateways, gateway size 1.5m * 0.8m; Be connected by two groups of (totally four) staircases between station hall layer and the station layer, this that is to say unique gateway that station layer links to each other with the external world, and the headroom at its single staircase open communication position is of a size of 0.6m * 0.4m.In the both sides of an island platform is respectively that two sections station tunnels are (long * wide * high for 20m * 1m * 1.1m), the ground location in tunnel is lower than the ground location 0.2m of platform; This experimental system platform adopts has the closed system design proposal of shield door, and the station is provided with shield door along platform edge, and platform space and running tunnel space are spaced from each other, and the length of shield door is identical with platform length, and the shield door height overall is 0.6m; The equipment room lays respectively at the both sides in platform zone, is of a size of 1.6m * 1.2m * 0.6m.Station layer and station hall layer can be considered closed structure except above-mentioned specific gateway; Opening is left at the two ends of running tunnel, and open height and width can be regulated automatically by the radical occlusion device that is provided with, so that the boundary condition in the experiment is conformed to actual as much as possible.Build train model with the multiple layer refractory plate, train is of a size of 14.4m * 0.6m * 0.6m, can be placed on as required in the tunnel, and also extensible tunnel is used to simulate the situation that there are car, no car in subway inside.
Subway experimental entity model main body is made up of building materialss such as refractory brick, refractory slab, fireproof glass and steel members, and wherein the model ground adopts the refractory brick place mat; The shield door in platform zone adopts fireproof glass and steel member to constitute; 20cm interlayer in the middle of platform and the subway concourse adopts refractory slab; The building enclosure of running tunnel adopts refractory brick; The equipment room adopts refractory slab to be split to form; Some building enclosures of platform, subway concourse adopt multilayer thickening refractory slab.
2, ventilation smoke exhaust system
Ventilation smoke exhaust of the present invention system comprises: platform public area ventilation smoke exhaust subsystem 14, tread ventilation smoke exhaust subsystem 3, flange of rail ventilation smoke exhaust subsystem 4 and station tunnel ventilation smoke exhaust subsystem 5.These subsystems are under normal circumstances done ventilation usefulness, do smoke evacuation usefulness under accident conditions, and each ventilation smoke exhaust subsystem is relatively independent, can carry out air quantity respectively and regulate.Whole ventilation smoke exhaust system is altogether by 50 little blower fan (maximum quantity of wind 100m
3/ h), 4 big blower fan (maximum quantity of wind 1000m
3/ h) constitute.In the station tunnel of train orderly shutdown scope, every side is provided with 15 tread smoke evacuation air ports and 15 flanges of rail (under platform) smoke evacuation air port, and the smoke evacuation air port is of a size of 0.3m * 0.4m, and concrete the layout seen Fig. 1 for details; The two ends, station are provided with the tunnel ventilation subsystem, and every end disposes 2 of standby mutually tunnel blower fans, and the air port is of a size of 0.8m * 0.9m, and concrete the layout seen Fig. 1 for details; Both sides, station platform public domain respectively are provided with 10 smoke evacuation air ports, and the smoke evacuation air port is of a size of 0.3m * 0.2m, and concrete the layout seen Fig. 3 for details.
For homogeneity and the controllability that ensures each air port flow, above-mentioned each subsystem distributed arrangement blower fan, and control automatically by the speed change demodulator.Adopt the wind flow cover that fan delivery is demarcated.In the experiment, the total blast volume of each subsystem blower fan is determined according to original design of subway and model similarity theoretical analysis.Simultaneously, can carry out the experiment under the different air quantity, thereby instruct the design of anti-smoke evacuation prioritization scheme.
3, burning things which may cause a fire disaster system
Referring to Fig. 4, burning things which may cause a fire disaster of the present invention system is made of gas burner, hot cigarette generation case 17 and burning things which may cause a fire disaster system controller 15.Gas burner is realized the accurate control of gas flow by the electronic control instrument, thereby control fire source power, produce and satisfy the desired certain power distribution of experiment, can simulate the fire source power growth curve of the specific fire scenario of subway comparatively truly, maximum stable power can reach 500KW, and the concrete flash-up curve that is adopted in the experiment can be determined according to original design of subway and the analysis of model similar proportion.The sparking mode of gas burner is that electronics is lighted a fire automatically, and the clean gas of burnings such as rock gas, liquefied petroleum gas (LPG) is mainly adopted in combustion gas.Burning jamb 18 conveniently movings of burner can be placed arbitrarily as required.Because rock gas, liquefied petroleum gas (LPG) amount of being fuming when burning is very little, in order to follow the tracks of the motion conditions of flue gas, need to add the spike flue gas particle, hot cigarette generation case promptly is based on this purpose and is used with burning jamb, it designs with reference to Australia hot cigarette testing standard AS1391, concrete structure is seen Fig. 4, be of a size of 0.2m * 0.2m * 0.15m, cake is placed in hot cigarette generation case bottom, and its burning-point is very low, it is respond well to be fuming, with built-in electric rangette it is lighted in the experiment, cake ignites and sends a large amount of white cigarettes, and the flue gas gathering diffuses to flank, spurt facing to the fire plume district of burning jamb by the flank spout, thereby plume entrainments flue gas and realizes the spike effect of flue gas with flue gas particle motion, thereby, under the heating of burning things which may cause a fire disaster, adopt this mode promptly to form the hot flue gas of certain power, this flue gas approaches the hot flue gas of natural fire.But the actual fire comburant of burning things which may cause a fire disaster system real simulation that the present invention proposes, its advantage is: but this fire source power electronic control control, the flash-up curve can repeat; The hot flue gas body toxicity that produces is little, simulation is true; The experimental repeatability of burning things which may cause a fire disaster system is good, cost is low; The system and device conveniently moving can be placed on the fire failure that the inner diverse location of subway model is simulated different scenes according to the experiment needs.
4, fire detection alarm system
Fire detection alarm system of the present invention is used to carry out the detection identification and warning of subway model interior fires, comprise detector and alarm controller two parts, at station hall layer 4 smoke detectors are set, at station layer 4 smoke detectors are set, when the fire smoke concentration of simulation reaches setting threshold, the response voltage that produces just drives alarm, and then links with smoke control system.In experiment, can close in good time or start automatic fire alarm system as required artificially.
5, experiment measuring acquisition system and data analysis system
Experiment measuring acquisition system of the present invention is used for the multiple spot of subway disaster accident simulation testing, multi-faceted, multiparameter, multi-functional signal measurement, collection and processing experimental data, flue-gas temperature between the main measurement of experiment tunnel, platform, subway concourse and escape stair, flow velocity, pressure, gas componant etc., determine the situation that spreads of flue gas in addition by range estimation, shooting, smoke-sensitive alarm, Fig. 5 is the arrangenent diagram of experiment measuring system.
Temperature sensor adopts K type armoured thermocouple, and temp probe comprises temperature measurement probe (see figure 5) in platform (comprising building staircase opening part), subway concourse, the tunnel.
Hot-bulb anemoscope and bidirectional pressure difference pitot tube are adopted in velocity survey, and the speed probe comprises velocity survey probe (see figure 5) in platform (comprising building staircase opening part), subway concourse, the tunnel.
The measurement of space pressure is undertaken by micro-pressure sensor, and the pressure in the different spaces is carried out real-time measurement (see figure 5).
CO in gas concentration such as the fire hazard environment, CO
2, O
2Etc. gas componant, and toxic gas leakage concentration, (see figure 5) measured by flue gas analyzer and infrared gas analyzer.
Image in the experimentation carries out real-time continuous by distributed image capturing system and catches dynamic image, carries out the image scene seizure by the CCD camera system that multiple spot is arranged, carries out the rear end by the multi-faceted switching HD digital of frequency division display and shows.Camera includes: camera 30,31 in the tunnel, camera 34 in the camera 32,33 in the platform, subway concourse, subway model side camera 35,36 (see figure 5)s.Simultaneously, can adjust the particular location of camera according to actual needs flexibly.
Owing to the signal type that needs in the experiment to measure is many, therefore the multi-faceted layout of sensor multiple spot needs the multichannel collecting system to carry out signals collecting, and acquisition system adopts the multichannel collecting instrument NISCXI-1102 of National Instruments.
Data analysis system of the present invention is used for the experimental data that obtains is analyzed, obtain the experimental data of disaster accident, and adopt softwares such as FDS, FLUENT to carry out the fluid dynamic three-dimensional numerical value simulation of fire, analysis in conjunction with experimental data, the disaster accident consequence is carried out suitable forecast assessment, propose targetedly disaster and place measure, for preventing and reducing natural disasters of the engineering design of subway construction, metro operation provides rationally, scientific basis accurately.
The use of brief description subway disaster accident simulation testing platform of the present invention: (1) is positioned over the position that the disaster simulation need be carried out in subway model inside with the burning jamb of burning things which may cause a fire disaster system and hot cigarette generation case (in cake is arranged), for example in platform, subway concourse, train or the tunnel; (2) according to the design and the similarity theory analysis of fire scenario, contrived experiment fire source power growth curve is to adjust in experiment; (3) same, according to original design of subway and similarity theory analysis, ventilation smoke exhaust system in the experiment is carried out air quantity regulate; (4), shield door unfolding mode (side is opened, open both sides, contract fully) is set according to pattern; (5) as required, arrange or remove train model; (6) as required, start or close automatic fire alarm system; (7) open the experiment measuring acquisition system, verification is demarcated; (8) experiment beginning starts the electric ignition of burning things which may cause a fire disaster, and smoke evacuation system enters disaster pattern, data acquisition; (9) experiment finishes, and finishes to gather, and closes burner, opens the experimental situation smoke evacuation, handles, analyzes experimental data.
Claims (9)
1. subway disaster accident simulation testing platform comprises subway experimental entity model and is laid in burning things which may cause a fire disaster system, ventilation smoke exhaust system, fire detection alarm system, experiment measuring acquisition system and data analysis system in this solid model; Wherein: subway experimental entity model is the 1:5 large scale model of simulation structure of the subway, is used for the three-dimensional restriceted envelope that the mock disaster accident takes place; The burning things which may cause a fire disaster system is used to produce fire heat smoke to simulate different fire scenarios; The ventilation smoke exhaust system is used to simulate ventilation and the smoke evacuation under subway normal mode and the disaster pattern; Fire detection alarm system is used to carry out the automatic identification and the warning of subway model interior fires; The experiment measuring acquisition system is used for DATA REASONING, collection and the processing of subway disaster accident simulation testing; Data analysis system be used to the to experimentize forecast assessment of contrast, analysis, checking and damage sequence of data; It is characterized in that:
Described subway experimental entity model is the multi-layer construction structure of setting up according to the building structure employing similarity theory analysis of actual subway, include station tunnel, platform, subway concourse, equipment room etc., station tunnel, platform, subway concourse all adopt modular design, can dismantle and make up model as required;
Described burning things which may cause a fire disaster system comprises gas burner, hot cigarette generation case and burning things which may cause a fire disaster system controller, its fire source power and the amount of being fuming can be regulated, to produce different fire flash-up curves, the concrete flash-up curve that adopts in the experiment is analyzed according to original design of subway and model similar proportion and is determined.
2. subway disaster accident simulation testing platform as claimed in claim 1, it is characterized in that: described subway experimental entity model can be simulated the structure of the subway with different stations form, comprise: buried subway station with four-layer structure, the shallow embedding subway station that perhaps has two-layer structure, perhaps station layer last and station hall layer under overhead subway station, perhaps station tunnel is in formula subway station, the island of platform both sides, the perhaps side formula subway station of platform that distributing, station tunnel both sides, the formula subway station, the middle Room that perhaps has the open communal space between platform and subway concourse.
3. subway disaster accident simulation testing platform as claimed in claim 1 or 2 is characterized in that: described subway experimental entity model main body adopts fire proofing material to make up, and is provided with the glass observation window at the inner different inspecting position of model.
4. subway disaster accident simulation testing platform as claimed in claim 1 is characterized in that: the gas burner of described burning things which may cause a fire disaster system and hot cigarette generation case adopt proportional control, and the burning things which may cause a fire disaster system is movably.
5. as claim 1,2 or 4 described subway disaster accident simulation testing platforms, it is characterized in that: described burning things which may cause a fire disaster system includes flowmeter, thereby with the power of the gas flow pilot-gas burning things which may cause a fire disaster of control burner; The burning things which may cause a fire disaster flank of the burning jamb of described burner is placed with spike flue gas generation case, and the hot cigarette that is produced is nontoxic.
6. as claim 1,2 or 4 described subway disaster accident simulation testing platforms, it is characterized in that: described ventilation smoke exhaust system comprises platform public area ventilation smoke exhaust subsystem, tread ventilation smoke exhaust subsystem, flange of rail ventilation smoke exhaust subsystem and running tunnel ventilation smoke exhaust subsystem, each ventilation smoke exhaust subsystem is relatively independent, can carry out air quantity respectively and regulate, the air quantity in its each air port is determined by the model similarity analysis.
7. subway disaster accident simulation testing platform as claimed in claim 6, it is characterized in that: each blower fan group by different numbers of described ventilation smoke exhaust subsystem constitutes, adopt the wind flow cover that the air quantity of each blower fan is demarcated, and the air quantity by automatic each blower fan of centralized control of speed change demodulator, the flow that makes each air port with test setting and conform to.
8. subway disaster accident simulation testing platform as claimed in claim 1, it is characterized in that: be furnished with shield door, building staircase and train model in the described subway experimental entity model model, so that platform space and running tunnel space are spaced from each other, the length of shield door is identical with platform length along edge of the platform setting for described shield door.
9. subway disaster accident simulation testing platform as claimed in claim 1, it is characterized in that: described experiment measuring acquisition system is the multichannel collecting system, comprise measuring sonde and camera that multiple spot is arranged, the space temperature field, pressure field, velocity field, gas concentration, the visibility that are used for subway disaster accident simulation testing are carried out the multi-functional signal measurement of multiple spot, collection and processing in real time, and video acquisition and the processing of carrying out the active development process.
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