CN107764977A - A kind of artificial rain simulating device for debris flow testing - Google Patents
A kind of artificial rain simulating device for debris flow testing Download PDFInfo
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- CN107764977A CN107764977A CN201711076227.4A CN201711076227A CN107764977A CN 107764977 A CN107764977 A CN 107764977A CN 201711076227 A CN201711076227 A CN 201711076227A CN 107764977 A CN107764977 A CN 107764977A
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Abstract
The invention discloses a kind of artificial rain simulating device for debris flow testing, the present apparatus can set corresponding pressure, and then control rain types with the pressure size in convenient, flexible adjustment water tank according to region land surface condition and characteristics of rainfall；By adjusting diversion box internal pressure simulated domain point heavy rain concentration phenomenon；By closing one or more of diversion box, the rainfall under strong wind weather can be simulated, also storm type can be simulated by overlapping rainfall area；Rainfall data are inputted by computer system, by controller control pressure control valve, can quickly and accurately control rain types；Pressure-control valve in the present invention can be filtered well to the solid particle of river and phytoplankton etc., energy-conserving and environment-protective, and can extend the service life of shower nozzle.
Description
Technical field
The present invention relates to mud-rock flow firing test technical field, specifically a kind of rain making mould for debris flow testing
Intend device.
Background technology
Mud-rock flow is a kind of two-phase solid-liquid fluid for being full of a large amount of silt stones and boulder.It, which has, breaks out unexpected, carrying
The characteristics of ability is strong is buried in impact silt, and has very big destructive power.The property of mud-rock flow determines that its formation needs sufficient water
Source, the water source of mud-rock flow is triggered in China, and essentially from heavy rain, showing as will shape when rainfall reaches a certain Critical Rainfall value
Into disaster.So the determination of Critical Rainfall to research debris flow formation mechanism, analysis prediction mud-rock flow future activity feature and
Debris flow control works design etc. is instructed to be respectively provided with significance.Observe and statistics shows, single-gully mud-rock flow and area
A Critical Rainfall threshold value, the disaster historical events and ground that the threshold value can occur according to mud-rock flow all be present in the generation of domain mud-rock flow
The influence factors such as looks, geology, landform, soil, vegetation or test method are determined.In recent years, rainfall induced debris flow occurs
The research of rainfall condition and hazard prediction forecasting problem based on rain factor enjoy the pass of domestic and international many mud-rock flow scholars
Note, turns into a hot issue of nearly STUDY OF DEBRIS FLOW during the last ten years, and numerous geological disaster scholars pass through 10min raininess, 1h
The experiment and statistics that the interception rainfall indexes such as raininess, 24h rainfall, preceding n days effective rainfalls are related with mud-rock flow, establish a system
The prediction model based on rainfall and raininess is arranged, has largely promoted the solution of Prediction of debris flow disaster forecasting problem
Certainly, and for China's work of preventing and reducing natural disasters it is made that contribution.But by As-Is analysis, carried out at present based on rainfall and
The mud-rock flow prediction work of raininess condition, still suffers from the problem of some need further to consider and capture and problem.It is existing
Debris Flow Forecast model mostly be is established based on statistics, Debris Flow in monitoring materials scarcity remote mountain areas,
The many model universalities having can not meet the needs prevented and reduced natural disasters, and carrying out mud-rock flow according to land surface condition starts in-situ test
Or model test, and then the rainfall threshold value that each region mud-rock flow starts is determined according to land surface condition, binding tests phenomenon can be with
Analyze the characteristics of mud-rock flow starts, debris flow scale and stacking characteristic, analysis mud-rock flow causes disaster ability, and evaluating potential influences model
Enclose, and establish mud-rock flow Boot Model, foundation is provided for mud-rock flow prediction from now on.Existing mud-rock flow starts rain making
Device, structure setting is more single, can not the influence that starts to mud-rock flow of simulated domain point heavy rain, and condition of raining can not be adjusted
Control, simulated rainfall and actual condition of raining significant difference, cause the data distortion obtained, and its precision of the model of foundation can not meet
Prevent and reduce natural disasters needs.
When carrying out simulated rainfall in the remote districts such as mountain area, the water in the mostly local river in water source used, but river
In water contain many solid particles and phytoplankton etc., be used directly to intend rainfall, easily cause the blocking of water injector.
The content of the invention
It is an object of the invention to provide a kind of artificial rain simulating device for debris flow testing, to solve the above-mentioned back of the body
The problem of being proposed in scape technology.
To achieve the above object, the present invention provides following technical scheme：A kind of rain making mould for debris flow testing
Intend device, including rainfall system, rain collection system and video camera；Rainfall system includes generator, water pump, total water tank, rainfall
Cylinder, rainfall support and rainfall shower nozzle, the generator are connected by electric wire with water pump, and water pump is connected with total water tank, and total water tank leads to
Cross water-supply-pipe and be connected with several diversion boxs side by side, be provided with rainfall shower nozzle on rainfall support, rainfall shower nozzle by water-supply-pipe with
Diversion box connects；Rain collection system includes rain gage bucket and data collecting instrument, and rain gage bucket passes through data acquisition line and data acquisition
Instrument connects, in real time the rainfall of record at different moments.
The diversion box is connected with total water tank by water-supply-pipe respectively, and rainfall shower nozzle is connected by water-supply-pipe with diversion box,
Pressure-control valve is installed on water-supply-pipe；The pressure-control valve includes ball valve body, core and microgenerator, and the two of ball valve body
End is respectively arranged with left end cap and right end cap, and screen pack, the miniature whirlpool of microgenerator are provided between left end cap and ball valve core
Wheel is connected on the valve interior wall between screen pack and left end cap, and the current output terminal of microgenerator is electrically connected with electric power storage
Pond；Drive link is connected with ball valve core, drive link engages connection with the output shaft of micro machine by gear；It is provided with ball valve body
Pressure sensor, pressure sensor are electrically connected with controller, and controller is electrically connected with fine setting motor, controller, fine setting electricity
Machine is electrically connected with battery；Ball valve body lower end between left end cap and screen pack is provided with blowdown apparatus.
Experiment can continuously be carried out by generator in remote mountain areas, ensure that the continuity of experiment, simulation is dropped for a long time
Under the conditions of rain, the variation characteristic of the region soil body.The video camera can record whole experiment process, the time of damage of soil body, mud
Rock glacier starts time, debris flow scale and movement characteristic.
The water-supply-pipe is provided with pressure-control valve, by adjusting pressure-control valve range, simulation Different climate region
Condition of raining or simulated domain point heavy rain concentration phenomenon；Total water tank and diversion box are made by stainless-steel sheet welding, push up
Portion is provided with the pressure gauge of pressure in measure water tank, the air bleeding valve of regulating tank pressure, can adjust the pressure in water tank in time, and then
Adjust rainfall.By adjusting pressure-control valve range, the condition of raining in Different climate region can be simulated, can also simulation region
Domain point heavy rain concentration phenomenon.Rain gage bucket and video camera are provided with the system, when can record different in real time by data collecting instrument
The rainfall at quarter, video camera record experimental phenomena in real time, can combine rainfall data analysis mud-rock flow start pattern, feature and
Formation mechenism.
Described rain gage bucket is arranged near domatic or model groove, and in rainfall region, can flexibly be pacified as needed
Put, data collecting instrument can accurately obtain the rainfall during experiment in real time；Because current artificial rain device can not be real
Shi Jilu mud-rock flow start-up courses, the follow-up analysis of mud-rock flow onset dynamics and the determination of rainfall threshold value have difficulties, the drop of acquisition
Rain data can not be combined well with experimental phenomena.After technical scheme, the rainfall in each region can be truly reduced
Feature, simulate mud-rock flow under actual condition of raining and start required rainfall condition, time, scale and the fortune started with reference to mud-rock flow
Dynamic feature, analyzes debris flow formation mechanism, establishes mud-rock flow Boot Model.
Preferably, the range of the pressure gauge and pressure-control valve is respectively -0.1-25MPA and 0.05-0.4MPA.It is logical
The range of toning seamless force control valve adjusts the internal pressure of total water tank and diversion box, and then the rainfall needed for Control experiment is big
It is small.
Preferably, the number of the diversion box is four.
Preferably, the water pump is 70 meters of lift alternating-current frequency-conversion constant-voltage water pumps.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention provides a kind of for the artificial of debris flow testing
Rainfall simulator, structure are novel；The present invention has the advantages of the following aspects：1st, the present apparatus can be with convenient, flexible adjustment
Pressure size in water tank, corresponding pressure is set according to region land surface condition and characteristics of rainfall, and then control rain types；
2nd, by adjusting diversion box internal pressure simulated domain point heavy rain concentration phenomenon；3rd, by closing one or more in diversion box
It is individual, the rainfall under strong wind weather can be simulated, also storm type can be simulated by overlapping rainfall area；4th, computer is passed through
System inputs rainfall data, by controller control pressure control valve, can quickly and accurately control rain types；5th, it is of the invention
In pressure-control valve the solid particle of river and phytoplankton etc. can be filtered well, energy-conserving and environment-protective, and can be with
Extend the service life of shower nozzle.
Brief description of the drawings
Fig. 1 is the structural representation for the artificial rain simulating device for being used for debris flow testing in embodiment 1；
Fig. 2 is the structural representation of pressure sensor in embodiment 1；
Fig. 3 is top view in embodiment 1；
Fig. 4 is ball valve core and the structural representation of drive link junction in embodiment 1.
Embodiment
Embodiment 1
As Figure 1-4, a kind of artificial rain simulating device for debris flow testing, including rainfall system, rain collection system
System；Rainfall system includes generator 1, water pump 3, total water tank 5, rain gage bucket 11, rainfall support 9 and rainfall shower nozzle 10, data acquisition
Instrument 13 and video camera 14；The generator 1 is connected by electric wire 2 with water pump 3, and water pump 3 is connected with total water tank 5, and total water tank 5 passes through
Water-supply-pipe 4 is connected with four diversion boxs 7 side by side, rainfall shower nozzle 10 is provided with rainfall support 9, rainfall shower nozzle 10 passes through water-supply-pipe
4 are connected with diversion box 7；Rain collection system includes rain gage bucket 11 and data collecting instrument 13, and rain gage bucket 11 passes through data acquisition line
12 are connected with data collecting instrument 13, in real time the rainfall of record at different moments.
The generator 1 is 3kw gasoline engine generators（3/5/6/ kilowatt of 8Kw multi fuels money of the single-phase three-phases of 220V380v generates electricity
Machine）；Water pump 3 is 70 meters of lift alternating-current frequency-conversion constant-voltage water pumps；The size of total water tank 5 is 1.5m × 0.8m × 0.6m, diversion box 7
Size is 0.6m × 0.4m × 0.3m；Rainfall support 9 is processed into by hollow stainless steel tube, and the height of support is 3.5m.Drop
The specification of rain shower nozzle 10 has 6 kinds of 5mm, 7mm, 9mm, 11mm, 13mm and 15mm etc., can simulate from light rain to strong rainstorms
Raininess；Design sprinkler spacing is 4 meters or so, and effective uniform rainfall region of each pair shower nozzle is about the wide about 4m of 5m, rainfall area area
About 20m2.The measurement bore of rain gage bucket 11 is 200mm, and appearance and size is 210mm × 780mm, and video camera 14 is that Canon/ is good
Can LEGRIA HF R76 DV high definition wireless home DV video cameras.
The diversion box 7 is four, is connected respectively with total water tank 5 by water-supply-pipe 4, rainfall support 9 and rainfall shower nozzle 10
Also respectively there are four, rainfall shower nozzle 10 is connected by water-supply-pipe 4 with diversion box 7 respectively, and pressure-control valve is mounted on water-supply-pipe 4
8.The pressure-control valve 8 includes ball valve body 801, ball valve core 812 and microgenerator, and the both ends of ball valve body 801 are set respectively
Have left end cap 802 and right end cap 803, be provided with screen pack 805 between left end cap 802 and ball valve core 812, microgenerator it is micro-
Type turbine 804 is connected on the inwall of ball valve body 801 between screen pack 805 and left end cap 802, the electric current output of microgenerator
End is electrically connected with battery 809；Drive link 811, the output of drive link 811 and fine setting motor 810 are connected with ball valve core 812
Axle is engaged by gear and connected；Pressure sensor 808, pressure sensor 808 and the electricity of controller 806 are provided with ball valve body 801
Property connection, controller 806 with fine setting motor 810 be electrically connected with, controller 806, finely tune motor 810 it is electrical with battery 809
Connection；The lower end of ball valve body 801 between left end cap 802 and screen pack 805 is provided with blowdown apparatus（Blow-off pipe）807.
When carrying out in-situ test in different region, according to the meteorological data of locality, the rain types in the region are determined, according to
This rainfall actual by adjusting the hydraulic pressure control in total water tank 5.If region has point heavy rain concentration phenomenon, pass through regulation point
The pressure of water tank 7, the rainfall of four rainfall shower nozzles 10 can be controlled, and then can more really simulate actual rain fall.
Water pump 3 has higher lift, can meet the pressure needs of total water tank 5 and diversion box 7, after pressure stability, water pump 3 is automatic
Frequency conversion, it is stationary value to keep the pressure in water tank, reduces the influence to rainfall to greatest extent.
Pressure gauge 6 and air bleeding valve 16 are mounted on total water tank 5 and diversion box 7, can be finely tuned by air bleeding valve 16
Pressure in water tank, avoid impacting experiment because pressure oscillation is excessive.Can be by closing rainfall shower nozzle during experiment
One or two in 10, to simulate the rainfall under strong wind weather.
The range of the pressure gauge 6 and pressure-control valve 8 is respectively -0.1-25MPA and 0.05-0.4MPA.Pass through adjustment
The range of pressure-control valve adjusts the internal pressure of total water tank and diversion box, and then the rainfall size needed for Control experiment.
The left end cap of the ball valve body of pressure-control valve 8 in the present invention is connected with water inlet end, and current pass through band actuating miniature whirlpool
Wheel is generated electricity, and is stored in battery, and battery provides electric power for fine setting motor and controller；By the drop for comparing input
Water flow pressure in rain data and valve body, controller control is by finely tuning the folding size of motor control pressure-control valve；Current
Debris is filtered by screen pack, is discharged after running up to certain time by blowdown apparatus.
The electric wire 2 is cord, when carrying out in-situ test or model test in the wild, is easy to site layout project, to ensure
Safety, insulation sleeve ring is cased with the outside of electric wire 2；Water-supply-pipe 4 is high pressure rubber water pipe, pressure-control valve 8 and the junction of water-supply-pipe 4
Handled with sealant tape, prevent leak.
The rainfall support 9 can be moved flexibly, be easy to control rainfall area area；Rainfall shower nozzle 10 has six sizes can be with
Selection, can more easily simulate the different rain types occurred in same rainfall；Video camera 14 can be caught by focusing
The real-time dynamic changing process of the domatic soil body in testing, the rainfall data gathered with reference to rain gage bucket, analytical soil sample failure mechanism.
Video camera 14 can record the runoff situation inside domatic and slopes, creep deformation and domatic damage of soil body feelings with reference to slopes
Condition, analysis mud-rock flow start-up course, pattern and mechanism.
The rain gage bucket 11 can monitor the rainfall condition during whole experiment, with reference to small watershed heavy rain flood in Sichuan Province
Sailor's volume（1984 editions, the Sichuan Province hydraulic and electric engineering Room is compiled）, the Critical Rainfall that mud-rock flow starts can be calculated, establishes region mud-rock flow
Rainfall threshold value.
Undeclared part involved in the present invention, such as microgenerator, controller, it is conventional skill of the prior art
Art means, here is omitted.
The present invention operation principle be：According to the Characteristics of Precipitation in region, it is determined that the rain types needed for during testing, according to
The range of water-supply-pipe 4 and pressure gauge is set according to rain types.Before on-test, by regulating and controlling the pressure in total water tank 5, pass through rain
Graduated cylinder 11 records rainfall corresponding to different pressure.If there is point heavy rain concentration or long-time strong wind rainy weather in region, can
To be controlled by adjusting the pressure in diversion box 7.The rainfall area of each rainfall support can also be carried out to overlapping, simulation storm wind
Rainfall under rain pattern.When the device is applied to field in-situ test or model test, it is to be ensured that what rainfall system was opened
Meanwhile rain collection instrument rainfall and video camera are opened, during recording whole experiment, runoff inside slope runoff, slopes,
Soil body creep deformation and destruction start the time for forming mud-rock flow.
Method of testing for the artificial rain simulating device of debris flow testing：
Step 1：Selection is suitable domatic in the wild, with the gradient that lining is domatic, and determines the density of the domatic soil body, early stage
Water content；Soil sampling before experiment, determine the particle composition characteristic of the soil body；
Step 2：Trial zone area delimited, rainfall support is arranged, according to the domatic size in trial zone, is evenly arranged rainfall support, protected
It is uniform to demonstrate,prove rainfall；
Step 3：Rain gage bucket is arranged in rainfall area, records the rainfall of various test stages, video camera, record are arranged in domatic outside
The situation of change of the domatic soil body；
Step 4：Generator and water pump are connected, and water pump, total water tank, diversion box and rainfall support are connected by water-supply-pipe, is adjusted
Whole shower nozzle direction；
Step 5：After arranging instrument, while rainfall system, rain collection system and video camera are opened, start to test；
Step 6：10 minutes rainfall are recorded during experiment, the 10 minutes rainfall measured according to experiment, according to rill in Sichuan Province
Domain Calculation of Flood handbook calculates that different underlying surface starts the 1 hour critical excitation approaches to form mud-rock flow.
The better embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment party
Formula, can also be on the premise of present inventive concept not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (5)
- A kind of 1. artificial rain simulating device for debris flow testing, it is characterised in that：Including rainfall system, rain collection system System；Rainfall system includes generator, water pump, total water tank, rain gage bucket, rainfall support and rainfall shower nozzle, and the generator passes through electricity Line is connected with water pump, and water pump is connected with total water tank, and total water tank is connected with several diversion boxs, rainfall support by water-supply-pipe side by side On be provided with rainfall shower nozzle, rainfall shower nozzle is connected by water-supply-pipe with diversion box；It is provided with total water tank and diversion box Pressure gauge and air bleeding valve；Rain collection system includes rain gage bucket and data collecting instrument, and rain gage bucket passes through data acquisition line and data Acquisition Instrument connects；Pressure-control valve is installed on the water-supply-pipe；The pressure-control valve includes ball valve body, ball valve core and miniature Generator, the both ends of ball valve body are respectively arranged with left end cap and right end cap, screen pack are provided between left end cap and ball valve core, micro- The miniature turbine of generator is connected on the valve interior wall between screen pack and left end cap, the current output terminal of microgenerator It is electrically connected with battery；Drive link is connected with ball valve core, drive link engages company with finely tuning the output shaft of motor by gear Connect；Pressure sensor is provided with ball valve body, pressure sensor is electrically connected with controller, and controller electrically connects with fine setting motor Connect；Ball valve body lower end between left end cap and screen pack is provided with blowdown apparatus.
- 2. it is used for the artificial rain simulating device of debris flow testing as claimed in claim 1, it is characterised in that：By adjusting pressure Control valve range, the condition of raining or simulated domain point heavy rain concentration phenomenon in simulation Different climate region；Total water tank and point Water tank is made by stainless-steel sheet welding.
- 3. it is used for the artificial rain simulating device of debris flow testing as claimed in claim 2, it is characterised in that：The pressure gauge and The range of pressure-control valve is respectively -0.1-25MPa and 0.05-0.4MPa.
- 4. it is used for the artificial rain simulating device of debris flow testing as claimed in claim 1, it is characterised in that：The diversion box Number is four.
- 5. the artificial rain simulating device of debris flow testing as claimed in claim 1, it is characterised in that：The water pump is 70 meters and raised Journey alternating-current frequency-conversion constant-voltage water pump.
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| CN201711076227.4A CN107764977B (en) | 2017-11-06 | 2017-11-06 | A kind of artificial rain simulating device for debris flow testing |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120073406A (en) * | 2010-12-27 | 2012-07-05 | 상지대학교산학협력단 | Landslide calibration chamber test set that using artificial rainfall simulator |
| CN203370670U (en) * | 2013-07-05 | 2014-01-01 | 中国商用飞机有限责任公司 | Rainfall simulating device |
| CN104502563A (en) * | 2014-12-22 | 2015-04-08 | 泉州师范学院 | Rainfall type landslide disaster simulation test system |
| CN105699628A (en) * | 2016-03-24 | 2016-06-22 | 吉林大学 | Simulation test system integrating start, migration and accumulation of debris flow |
-
2017
- 2017-11-06 CN CN201711076227.4A patent/CN107764977B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120073406A (en) * | 2010-12-27 | 2012-07-05 | 상지대학교산학협력단 | Landslide calibration chamber test set that using artificial rainfall simulator |
| CN203370670U (en) * | 2013-07-05 | 2014-01-01 | 中国商用飞机有限责任公司 | Rainfall simulating device |
| CN104502563A (en) * | 2014-12-22 | 2015-04-08 | 泉州师范学院 | Rainfall type landslide disaster simulation test system |
| CN105699628A (en) * | 2016-03-24 | 2016-06-22 | 吉林大学 | Simulation test system integrating start, migration and accumulation of debris flow |
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Effective date of registration: 20181211 Address after: 317523 1 happy five road, Ze Guo Town, Wenling City, Taizhou, Zhejiang Applicant after: Taizhou Feng Da Robot Technology Co., Ltd. Address before: 454750 Dading Beikaiyi Village, Mengzhou City, Jiaozuo City, Henan Province Applicant before: Wang Panfeng |
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| GR01 | Patent grant |