CN110487681A - Rainfall infiltration experimental rig and its test method in a kind of multifunctional room - Google Patents
Rainfall infiltration experimental rig and its test method in a kind of multifunctional room Download PDFInfo
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- CN110487681A CN110487681A CN201910838195.XA CN201910838195A CN110487681A CN 110487681 A CN110487681 A CN 110487681A CN 201910838195 A CN201910838195 A CN 201910838195A CN 110487681 A CN110487681 A CN 110487681A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/04—Investigating osmotic effects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
Abstract
The invention belongs to rainfall infiltration experimental technique field, rainfall infiltration experimental rig and its test method in a kind of multifunctional room are disclosed, rainer is placed on above test earth pillar bucket;The some place installation turbine flow flowmeter sensors in the water inlet of rainer slightly outside;The test corresponding position of earth pillar bucket is provided with 3 row's circular holes, 3 row's circular holes are respectively matric suction sensor port, moisture sensor mouth, baroceptor mouth, and matric suction sensor port, moisture sensor mouth, baroceptor mouth place matric suction sensor, moisture sensor, baroceptor respectively;Collected data are passed to data collecting instrument by the sensor as electronic signals, and data are stored and pass through data line by data collecting instrument passes to computer.The present invention may be implemented to select the reading of single or multiple test datas;It simultaneously can will be on the recording synchronism of multinomial data a to time point.
Description
Technical field
The invention belongs to rainfall infiltration experimental rigs in rainfall infiltration experimental technique field more particularly to a kind of multifunctional room
And its test method.
Background technique
Currently, the immediate prior art:
Landslide disaster is common geological disaster, not only constitutes serious threat safely to the people's lives and property, can also
Very big damage is constituted to traffic, ecology.Rainfall infiltration is the major reason for causing the soil body to come down.On the slope, rainwater is big
Amount is lower to seep, and causes slope soil to be saturated, increases the weight of the soil body on slope, while reducing the shearing resistance between the soil rock layers of slope
Intensity, to come down.Numerous rainfalls cause the example on landslide to show that slope slides under condition of raining, mainly
Since the lower infiltration of rainwater causes the variation of inside soil body air pressure, matric suction, moisture content, shearing strength.Such as rainwater is not
It is disconnected lower to seep so that the gas of inside soil body is constantly compressed, while the exhaust gas conditions of the soil body affect water enter to blend it is aqueous
The variation of rate and matric suction, so that the variation of soil shear strength is influenced, it is final to influence whether landslide generates.Therefore, In
Indoor rainfall infiltration test is carried out, when studying the variation of inside soil body different parameters, how can be carried out comprehensive parameter
How acquisition enables all data of measurement to be unified on a time point the crucial institute for becoming research soil body rainfall infiltration
In.But existing indoor rainfall infiltration experimental rig is mostly from rainfall intensity, rainfall, pore water pressure, matric suction etc.
Relevant parameter is fabricated separately, and the data of acquisition are comparatively single, and research rainfall infiltration rule also has biggish one-sidedness;
Indoor rainfall infiltration experimental rig existing simultaneously, which manually reads data, can not unify onto point at the same time.
In conclusion problem of the existing technology is:
(1) existing indoor rainfall infiltration experimental rig is inhaled from rainfall intensity, rainfall, pore water pressure, matrix mostly
The relevant parameter such as power is fabricated separately, and the data of acquisition are comparatively single, and research rainfall infiltration rule also has biggish
Face property.
(2) when existing indoor rainfall infiltration experimental rig is at the same time acquired multinomial data, all data is adopted
Collection can not be unified onto point at the same time.
Solve the difficulty of above-mentioned technical problem:
(1) rainfall infiltration experimental rig at this stage is that laboratory technician reads and records mostly for the acquisition of data,
Data variation is quick during test, while there is a certain error in time to multinomial data progress manual record, so that
Rainfall infiltration law study result generates large error.Under artificial condition, data were accurately unified onto same time point
It is irrealizable.
(2) when rainfall infiltration, the Infiltration Law that soil body surface produces water in stream and the soil body is related with multiple parameters, at this stage
The instrument of use, can only the data not comprehensive enough to a certain item or several be acquired, researched and analysed according to this with larger
One-sidedness, can not accurately disclose the soil body production stream and infiltrate mechanism, accurately study it is above-mentioned rule need observe it is more comprehensive
Data, all types of measurement sensors, which is arranged, in test apparatus comprehensive and reasonable can solve the incomplete problem of data observation.
Solve the meaning of above-mentioned technical problem:
(1) all kinds of sensor apparatus needed for the invention device is provided with comprehensive rainfall infiltration realize the electricity of data acquisition
Sonization can acquire the Various types of data of soil body rainfall infiltration comprehensively simultaneously, guarantee collected Various types of data at same time point
On.Mechanism or correlation analysis only are carried out to the Various types of data on same time point, could correctly disclose the soil body infiltrates rule
Rule;
(2) invention device can set measurement sensor acquisition time, so that the Test Data Collecting time can root
It needs to be adjusted according to the study, keeps result of study more accurate.
Summary of the invention
In view of the problems of the existing technology, the present invention provides rainfall infiltration experimental rig in a kind of multifunctional room and its
Test method, data of the soil in rainfall infiltration cannot be acquired comprehensively by solving prior-art devices, and test data is difficult to unite
Problem on one to same time point.
The invention is realized in this way rainfall infiltration experimental rig is provided in a kind of multifunctional room
Water supply device;
The water outlet of water supply device is connected with the water inlet of rainer by rubber hose;Rainer is placed on test
Above earth pillar bucket;
The some place installation turbine flow flowmeter sensors in the water inlet of rainer slightly outside, turbine flowmeter sensing
Collected data are passed to data collecting instrument by device as electronic signals, and data are stored and pass through data by data collecting instrument
Line passes to computer;
Earth pillar bucket upper end opening is tested, runoff yield excess mouth is equipped at a certain distance from distance test (DT) earth pillar bucket upper port;In
In in 90 ° of two side walls immediately below runoff yield excess mouth and with runoff yield excess mouth, with certain distance at away from runoff yield excess mouth
It is respectively equipped with the identical circular hole of 5 sizes, forms 3 row's circular holes;3 row's circular holes are respectively matric suction sensor port, moisture content biography
Sensor mouth, baroceptor mouth, matric suction sensor port, moisture sensor mouth, baroceptor mouth place matrix respectively
Suction sensor, moisture sensor, baroceptor;
Matric suction sensor, moisture sensor, baroceptor pass collected data as electronic signals
Data collecting instrument is passed, data collecting instrument, which stores and passes through data line, passes to computer;Runoff yield excess mouth passes through rubber hose
Open containers are connected to, liquid level flowmeter sensor is equipped in open containers;Liquid level flowmeter sensor equally by collected data with
The form of electric signal passes to data collecting instrument, and data collecting instrument, which stores and passes through data line, passes to computer.
Further, the water supply device is provided with Markov bottle, and Markov bottle upper end is equipped with water inlet, and Markov bottle lower end is equipped with
The mouth of a river;The center of plane is equipped with balance port in Markov bottle, and Markov bottle is plugged with balance pipe by balance port;Markov bottle water outlet
Mouth is connected by the water inlet of pipeline and rainer.
Further, it is in 90 ° that the position of the 3 row circular hole setting, which is immediately below runoff yield excess mouth and with runoff yield excess mouth,
Two side walls on, away from the place runoff yield excess mouth difference 13cm, 31cm, 49cm, 67cm, 85cm equipped with the identical circle of 5 sizes
Hole.
Further, the rainer upper end opening, rainer side wall are provided with water inlet, and rainer bottom is provided with
The circular hole of even distribution suitable size.
Further, it is stained with syringe at the rainer exterior bottom corresponding circle hole, according to needing to configure for experimental study
Syringe needle of corresponding size.
Further, the Markov bottle water outlet should be with the water inlet of rainer in the same horizontal line.
Further, it is 4cm that 3 pieces of diameters are placed in the test earth pillar bucket bottom, is highly the support cylinder of 5cm, branch is held round
It is 15cm that diameter is placed on column, the discus of thickness 0.5cm, and beats above the circle with rainer bottom same size and distribution
An equal amount of filter paper is placed in hole on discus.
Further, the center of the test earth pillar bucket bottommost is equipped with bottom overflow port, and overflow port is soft by rubber
Pipe is connected with closed container, and closed container is provided with liquid level flowmeter sensor, and liquid level flowmeter sensor is by collected data with electricity
The form of signal passes to data collecting instrument, and data collecting instrument, which stores and passes through data line, passes to computer.
Another object of the present invention is to provide a kind of realities using rainfall infiltration experimental rig in the multifunctional room
Proved recipe method, the experimental method, specifically includes the following steps:
Step 1 closes the water outlet of water supply device, supplies water from water inlet to Markov bottle, reaches the water of test demand
After amount, balance pipe is inserted into from balance port, and control distance of the balance pipe away from Markov bottle bottom;
The water inlet of the water outlet of water supply device and rainer is put in the same horizontal line, opens and supply water by step 2
The water outlet of device, supplies water to rainer;
Step 3 is collected and is stored to the electric signal for being connected to various kinds of sensors above with data collecting instrument, and
Computer is transferred data to, is carried out being converted into test data according to the corresponding software of each sensor.
In conclusion advantages of the present invention and good effect are as follows:
For the data of inside soil body in rainfall infiltration test in the present invention, the acquisition of individual data both may be implemented,
It can carry out the acquisition of multinomial data;Corresponding sensor can also be replaced simultaneously, measure other data.The present invention
Full-automatic acquisition may be implemented for test data, the record of multinomial data can be synchronized on a time point, side
Just the critical-path analysis of data is carried out.
The present invention had both had rainfall intensity controllable, also achieved the automation of test process data recording, while guaranteeing
Under conditions of water supply device water is sufficient, the rainfall infiltration of any duration may be implemented, rainwater can also be observed after rainfall stopping
Constantly infiltrate influence to soil body parameters so that test situation improves the reliable of test result closer to engineering reality
Property and test process the degree of automation.
Detailed description of the invention
Fig. 1 is rainfall infiltration experimental rig structural schematic diagram in multifunctional room provided in an embodiment of the present invention.
Fig. 2 is water supply device structural schematic diagram provided in an embodiment of the present invention.
Fig. 3 is rainer structural schematic diagram provided in an embodiment of the present invention.
Fig. 4 is rainer bottom substance schematic diagram provided in an embodiment of the present invention
Fig. 5 is test earth pillar barrel structure schematic diagram provided in an embodiment of the present invention.
Fig. 6 is test earth pillar bucket bottom substance schematic diagram provided in an embodiment of the present invention.
Fig. 7 is discus structural schematic diagram provided in an embodiment of the present invention.
Fig. 8 is the test method flow chart of rainfall infiltration experimental rig in multifunctional room provided in an embodiment of the present invention.
In figure: 1, water supply device;2, rainer;3, earth pillar bucket is tested;4, turbine flow flowmeter sensor;5, runoff yield excess
Mouthful;6, open containers;7, liquid level flowmeter sensor;8, matric suction sensor port;9, moisture sensor mouth;10, air pressure sensing
Device mouth;11, closed container;12, data collecting instrument;13, computer;14, Markov bottle water inlet;15, Markov bottle water outlet;16,
Balance port;17, balance pipe;18, rainer water inlet;19, rainer bear;20, bottom overflow port;21, it supports
Cylinder;22, discus.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
In order to solve the above technical problems, technical solution of the present invention is explained in detail with reference to the accompanying drawing.
Rainfall infiltration experimental rig includes: water supply device 1, rainer 2, test earth pillar bucket 3, measurement in the multifunctional room
Sensor, storage and analytical equipment (data collecting instrument 12, computer 13).
The water outlet of water supply device 1 is connected with the water inlet of rainer 2 by rubber hose;Rainer 2 is placed on
Test 3 top of earth pillar bucket.
Water supply device 1 is provided with Markov bottle, and Markov bottle upper end is equipped with water inlet 14, and Markov bottle lower end is equipped with water outlet 15;
The center of plane is equipped with balance port 16 in Markov bottle, and Markov bottle is plugged with balance pipe 17 by balance port 16;Markov bottle goes out
The mouth of a river 15 is connect by pipeline with the water inlet 18 of rainer 2.The slightly some place in outside at the water inlet 18 of rainer
Turbine flow flowmeter sensor 4 is installed, collected data are passed to data by turbine flow flowmeter sensor 4 as electronic signals
Acquisition Instrument 12, data collecting instrument 12 store to electric signal and pass to computer 13 by data line.2 upper end of rainer
Opening, 2 side wall of rainer are provided with water inlet 18, and 2 bottom of rainer is provided with the circular hole 19 for being uniformly distributed suitable size.
3 upper end opening of earth pillar bucket is tested, runoff yield excess mouth 5 is equipped at 3 upper port 5cm of distance test (DT) earth pillar bucket;Super
Seep and produce immediately below head piece and with runoff yield excess mouth in 90 ° of two side walls, away from runoff yield excess mouth difference 13cm, 31cm,
The identical circular hole of 5 sizes is equipped at 49cm, 67cm, 85cm, this 3 row circular hole is respectively matric suction sensor port 8, moisture content
Sensor port 9, baroceptor mouth 10, matric suction sensor port 8, moisture sensor mouth 9, baroceptor mouth 10 are distinguished
Place matric suction sensor 8, moisture sensor 9, baroceptor 10.Matric suction sensor 8, moisture sensor 9,
Collected data are passed to data collecting instrument by baroceptor 10 as electronic signals, and data collecting instrument stores and passes through
Data line passes to computer.Runoff yield excess mouth 5 is connected to open containers 6 by rubber hose, and liquid is equipped in open containers 6
Position flowmeter sensor 7;Collected data are equally passed to data collecting instrument 12 by liquid level flowmeter sensor 7 as electronic signals,
Data collecting instrument 12 stores and passes to computer 13 by data line.Preferably, 2 exterior bottom corresponding circle hole of rainer
It is stained with syringe at 19, syringe needle of corresponding size is needed to configure according to experimental study.
Preferably, Markov bottle water outlet 15 should be with the water inlet 18 of rainer in the same horizontal line.
Preferably, it is 4cm that 3 pieces of diameters are placed in test 3 bottom of earth pillar bucket, it is highly the support cylinder 21 of 5cm, branch is held round
It is 15cm that diameter is placed on column, the discus 22 of thickness 0.5cm, and is beaten above and rainer bottom same size and distribution
Circular hole places an equal amount of filter paper on discus.
Preferably, the center of test 3 bottommost of earth pillar bucket is equipped with bottom overflow port 20, overflow port 20 passes through rubber
Hose is connected with closed container 11, and closed container 11 is provided with liquid level flowmeter sensor 7, and liquid level flowmeter sensor 7 will be collected
Data pass to data collecting instrument 12 as electronic signals, and data collecting instrument 12 stores and passes to computer by data line
13。
Technical scheme of the present invention will be further described combined with specific embodiments below.
As shown in Figure 1, rainfall infiltration experimental rig includes: water supply device 1, rainer 2, test soil in the multifunctional room
Column bucket 3, measurement sensor, storage and analytical equipment (data collecting instrument 12, computer 13).The water outlet and drop of water supply device 1
The water inlet of rain device 2 is connected by rubber hose;Rainer 2 is placed on 3 top of test earth pillar bucket.The data acquisition
Instrument, storage and analytical equipment include data collecting instrument 12 and computer 13, the electricity that data collecting instrument comes to each sensor passes
Signal is acquired and stores, and transmits the result to computer, according to the corresponding software of each sensor, turns to electric signal
It changes.
As shown in Fig. 2, the water supply device includes Markov bottle, Markov bottle upper end is equipped with water inlet 14, and lower end is equipped with water outlet
The center of mouth 15, upper plane is equipped with balance port 16, for being inserted into balance pipe 17.The Markov bottle water outlet 15 should be with rainfall
The water inlet 18 of device in the same horizontal line, can be by the balance pipe 17 that is inserted in balance port 16 according to law of connected vessels
Height away from Markov bottle bottom controls the height of water level in rainer, while in the slightly outside of the water inlet of rainer 18
Some place installation turbine flow flowmeter sensors 4, and being connected on data collecting instrument 12, turbine flow transducer 4 is by institute at this time
The variation of collected flow is transferred to data collecting instrument 12 by way of electric signal in real time and is stored, in computer 13
On be converted to the electric signal that it is transmitted the data of our needs, the sensing using the software of turbine flow transducer
What device measured is total flow into test earth pillar bucket.
As shown in figure 3, the rainer 2 is the container of upper end opening, side wall is provided with water inlet 18, and bottom is uniform
Circular hole 19 equipped with suitable size.
As shown in figure 4, the bottom of the rainer is equipped with circular hole 19, glued at rainer exterior bottom corresponding circle hole
Top cylinder configures syringe needle of corresponding size according to the size of required rainfall intensity during the test.
As shown in figure 5, the test earth pillar bucket 3 is the container of upper end opening, distance test (DT) earth pillar bucket upper port 5cm's
Place is equipped with runoff yield excess mouth 5, in 90 ° of two side walls immediately below runoff yield excess mouth and with runoff yield excess mouth, away from super
It seeps to produce and is equipped with the identical circular hole of 5 sizes at head piece difference 13cm, 31cm, 49cm, 67cm, 85cm, this 3 row circular hole is respectively used to
Matric suction sensor 8, moisture sensor 9, baroceptor 10 are placed, inside soil body matrix is inhaled during measurement test
Power, moisture content and the variation of air pressure.
As shown in figure 5, the runoff yield excess mouth 5 is connected to open containers 6 with rubber hose, liquid level is equipped in container
Flowmeter sensor 7, when the infiltration coefficient for testing soil sample is smaller or carries out the biggish test of raininess, water has little time lower infiltration, is testing
Soil sample surface layer forms ponding, and ponding reach a certain height can be out of runoff yield excess mouth 5 inlet opening container 6, and liquidometer passes at this time
The variation of the liquid level sensed is transferred to data collecting instrument 12 by way of electric signal in real time and stored by sensor 7,
13 the electric signal of liquid level flowmeter sensor is converted using the software of respective sensor on computers, data is obtained, at this
Measure is similarly at 3 round holes, to be respectively put into matric suction sensor, moisture content passes for the runoff yield excess during testing
Sensor, baroceptor, and be connected on data collecting instrument one by one, corresponding electric signal is acquired, and carry out being converted into test data.
The measurement sensor, all be acquisition electric signal, electric signal is transmitted to data collecting instrument 12 and is stored,
As shown in figure 5, data collecting instrument is connected to computer 13, according to the corresponding software of every kind of sensor electric signal
It is converted into test data.
As shown in fig. 6, it is 4cm that 3 pieces of diameters are put in test earth pillar bucket bottom, and it is highly the support cylinder 21 of 5cm, support
It is 15cm, the discus 22 of thickness 0.5cm, and beating and rainer bottom same size and distribution above that diameter is placed on cylinder
Circular hole, an equal amount of filter paper is placed on discus, entirely test earth pillar bucket bottommost center equipped with bottom overflow
Head piece 20 (support cylinder cannot cover the mouth), and be connected by rubber hose with closed container 11.
It as shown in fig. 6, the test earth pillar bucket support cylinder 21 is the quality in order to support top test soil sample, and is quilt
It is compressed to the gas of bottom and reserves certain space more than the infiltration water of test thickness of soil, punching is in order to upper on discus 22
The water that portion is seeped and the air come that is depressed can reach bottom, and filter paper is the sky of test soil sample blocking discus 22 in order to prevent
Gap falls to bottom, and the bottom pressure hole 10 on side wall is fixed with baroceptor, is connected to data collecting instrument 12, passes through
The water of test soil layer enters closed container 11 by 20 overflow hole of bottom, and closed container is provided with liquid level flowmeter sensor 7, is connect
Onto data collecting instrument 12, the storage of data is carried out, what which measured is the amount for penetrating the water of entire test earth pillar, is used
4 data measured subtract 7 data measured at two, are the water consumption in entire test, when carrying out saturation rainfall infiltration test,
It can be realized by way of opening bottom pressure hole 10.
As shown in figure 8, in multifunctional room provided in an embodiment of the present invention rainfall infiltration experimental rig test method, including
Following steps:
S101: closing the water outlet of water supply device, supplies water from water inlet to Markov bottle, reaches the water of test demand
Afterwards, balance pipe is inserted into from balance port, and controls distance of the balance pipe away from Markov bottle bottom.
S102: the water inlet of the water outlet of water supply device and rainer is put in the same horizontal line, the dress that supplies water is opened
The water outlet set, supplies water to rainer.
S103: being collected and stored to the electric signal for being connected to various kinds of sensors above with data collecting instrument, and will
Data are transferred to computer, are carried out being converted into test data according to the corresponding software of each sensor.
The operation principle of the present invention is that:
The water outlet for closing water supply device 1, supplies water to Markov bottle from water inlet, after the water for reaching test demand,
Balance pipe 17 is inserted into from balance port 16, and controls distance of the balance pipe 17 away from Markov bottle bottom.By the water outlet of water supply device 1
The water inlet of mouth and rainer 2 puts the water outlet for opening water supply device in the same horizontal line, supplies rainer
Water.The electric signal for being connected to various kinds of sensors above is collected and is stored with data collecting instrument 12, and data are transmitted
To computer 13, carried out being converted into test data according to the corresponding software of each sensor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. rainfall infiltration experimental rig in a kind of multifunctional room, which is characterized in that rainfall infiltration test dress in the multifunctional room
It sets and is provided with
Water supply device;
The water outlet of water supply device is connected with the water inlet of rainer by rubber hose;Rainer is placed on test earth pillar
Bucket top;
The some place installation turbine flow flowmeter sensors in the water inlet of rainer slightly outside, turbine flow flowmeter sensor will
Collected data pass to data collecting instrument as electronic signals, and data are stored and passed by data line by data collecting instrument
Pass computer;
Earth pillar bucket upper end opening is tested, runoff yield excess mouth is equipped at distance test (DT) earth pillar bucket upper port certain position;It is seeped super
It produces immediately below head piece and with runoff yield excess mouth in 90 ° of two side walls, certain distance is set respectively at away from runoff yield excess mouth
There is the identical circular hole of 5 sizes, forms 3 row's circular holes;3 row's circular holes be respectively matric suction sensor port, moisture sensor mouth,
Baroceptor mouth, matric suction sensor port, moisture sensor mouth, baroceptor mouth place matric suction sensing respectively
Device, moisture sensor, baroceptor;
Matric suction sensor, moisture sensor, baroceptor pass to collected data as electronic signals
Data collecting instrument, data are stored and pass through data line by data collecting instrument passes to computer.Runoff yield excess mouth is soft by rubber
Pipe is connected to open containers, and liquid level flowmeter sensor is equipped in open containers;Liquid level flowmeter sensor is equally by collected data
Data collecting instrument is passed to as electronic signals, and data collecting instrument, which stores and passes through data line, passes to computer.
2. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that the 3 row circular hole setting
Position be immediately below runoff yield excess mouth and with runoff yield excess mouth in 90 ° of two side walls, away from runoff yield excess mouth point
The identical circular hole of 5 sizes is equipped at other 13cm, 31cm, 49cm, 67cm, 85cm.
3. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that the rainer upper end
Opening, rainer side wall are provided with water inlet, and rainer bottom is provided with the circular hole for being uniformly distributed suitable size.
4. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that on the outside of the rainer
It is stained with syringe at the corresponding circle hole of bottom, needs to configure syringe needle of corresponding size according to test is actual.
5. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that the Markov bottle water outlet
It should be with the water inlet of rainer in the same horizontal line.
6. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that test earth pillar bucket bottom
It is 4cm that 3 pieces of diameters are placed in portion, is highly the support cylinder of 5cm, and supporting and placing diameter on cylinder is 15cm, the iron of thickness 0.5cm
Cake, and the circular hole with rainer bottom same size and distribution is beaten above, an equal amount of filter paper is placed on discus.
7. rainfall infiltration experimental rig in multifunctional room as described in claim 1, which is characterized in that the test earth pillar bucket is most
The center of bottom is equipped with bottom overflow port, and overflow port is connected by rubber hose with closed container, and closed container is built-in
There is liquid level flowmeter sensor, collected data are passed to data collecting instrument, data by liquid level flowmeter sensor as electronic signals
Acquisition Instrument, which stores and passes through data line, passes to computer.
8. a kind of experimental method using rainfall infiltration experimental rig in multifunctional room as described in claim 1, feature exist
In, the experimental method, specifically includes the following steps:
Step 1 closes the water outlet of water supply device, supplies water from water inlet to Markov bottle, reaches the water of test demand
Afterwards, balance pipe is inserted into from balance port, and controls distance of the balance pipe away from Markov bottle bottom;
The water inlet of the water outlet of water supply device and rainer is put in the same horizontal line, opens water supply device by step 2
Water outlet, supply water to rainer;
Step 3 is collected and is stored to the electric signal for being connected to various kinds of sensors above with data collecting instrument, and will counted
According to computer is transferred to, test data is converted into according to the corresponding software of each sensor.
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