CN205981995U - Difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction - Google Patents
Difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction Download PDFInfo
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- CN205981995U CN205981995U CN201620733143.8U CN201620733143U CN205981995U CN 205981995 U CN205981995 U CN 205981995U CN 201620733143 U CN201620733143 U CN 201620733143U CN 205981995 U CN205981995 U CN 205981995U
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Abstract
The utility model discloses a difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction, including the cell body, set up water retaining separator in this cell body and with dividing first space and second space in the cell body into, this second space middle berth is equipped with permeable bed (42), pressure sensor has been laid in this permeable bed (42), this permeable bed (42) upper berth is equipped with impermeable stratum, the distributed fiber sensing ware has been laid among this impermeable stratum, the heating unit, a weighing sensor and a temperature sensor, this second space top sets up rainfall simulation mechanism, this first space middle berth is equipped with permeable bed (41), the injected water is gone up in this permeable bed (41), water can be by this permeable bed (41), this impermeable stratum is permeated in permeable bed (42). The utility model discloses but the other rainfall infiltration environment of coverage area and rainfall infiltration, infiltration destroy two kinds of ambient condition, for the monitoring of leakage of different dyke buildings provides the data foundation, and then realize effective control and early warning in time of different dyke buildings.
Description
Technical field
This utility model is related to a kind of difference rainfall infiltration and the continuous monitoring experimental provision of seepage failure, belongs to water conservancy water
Electrical engineering technical field.
Background technology
Dyke is that defending flood spreads unchecked, the major measure of protection resident and industrial and agricultural production.Because most of dykes are along sky
So riverbank is built, the Seepage problems on generally existing dyke basis, and seepage failure is one of main damage form in river levee,
Osmotic control measure must be taken to be controlled by.The dyke of different regions, multinomial by geological conditions, ambient temperature, rainfall etc.
The impact of factor, seepage flow condition is different, and the mechanism of seepage failure, process and result also differ, and therefore, dyke building must be entered
Row monitoring of leakage, to reduce seepage failure by effective osmotic control measure, protects Seawall safety.
In recent years, distributed optical fiber sensing technology quickly grows in dam safety monitoring field, and this technology has space and divides
Resolution is high, fiber deployment there's almost no monitoring blind spot along the line, fiber optic materials be difficult by electromagnetic interference, monitoring space length length,
Structure is simple, customization convenience, reliably and with long-term effectiveness, the low advantage of maintenance cost, is capable of time, continuous survey spatially
Amount, is particularly suitable for carrying out seepage continuous monitoring.
Actual dyke building is possible to meet with the phenomenon of heavy showers and downstream base of dam seepage failure in flood season simultaneously, to utilization
The monitoring that distributed fiberoptic sensor carries out seepage failure brings difficulty, and the rainfall infiltration that heavy showers causes can disturb early warning work
Make, cause wrong report, fail to report.How using distributed fiberoptic sensor difference monitoring rainfall infiltration, seepage failure and the two altogether
The impact to dykes and dams for the same-action, is problem demanding prompt solution in engineering.
Utility model content
In view of the foregoing, the purpose of this utility model is to provide the continuous of a kind of difference rainfall infiltration and seepage failure
Monitoring experimental provision, this experimental provision can simulate the environmental conditions such as dyke geological conditions, rainfall, using distributing optical fiber sensing
Device carries out rainfall infiltration, seepage failure monitoring experiment respectively, also can carry out rainfall infiltration and seepage failure monitoring experiment simultaneously, have
The different environmental condition of effect difference, realizes the effective monitoring of dyke building and timely early warning.
For achieving the above object, this utility model employs the following technical solutions：
A kind of difference rainfall infiltration and the continuous monitoring experimental provision of seepage failure, including cell body, arrange gear in this cell body
Water dividing plate and the first space and second space will be divided in cell body,
It is equipped with pervious bed 42 in this second space, in this pervious bed 42, is laid with pressure transducer, on this pervious bed 42
It is equipped with impermeable stratum, in this impermeable stratum, is laid with distributed fiberoptic sensor, heating unit, temperature sensor, this second
Space above arranges simulated rainfall mechanism,
It is equipped with pervious bed 41 in this first space, this pervious bed 41 injects water, water can be by this pervious bed 41, pervious bed
42 this impermeable stratum of infiltration.
Further,
Described pervious bed 41, pervious bed 42, the infiltration coefficient of impermeable stratum and thickness are according to the soil sample inspection of dyke building scene
Survey result to determine.
The position that described water retaining separater is had a common boundary with impermeable stratum in described pervious bed 42, horizontally extends baffle plate, should
Baffle plate is connected by a horizontal filter screen with the side wall of described cell body, the equal length of this baffle plate and horizontal filter screen.
Described water retaining separater is connected by filter screen with described cell body bottom.
The groove body sidewall of described second space is provided with valve.
Described simulated rainfall mechanism includes stand, water tank, shower nozzle, this staging erection on described second space, this
This water tank is fixed, this shower nozzle is fixed in lower section, the port of export of this water tank passes through this shower nozzle of pipeline communication, this pipeline is installed above frame
There is the control valve of the water yield for controlling this water tank.
Described cell body is mutually bonded using bonding agent by some pieces of lucites and forms, described distributed fiberoptic sensor in
Epoxy resin is adopted to block at the wire hole of described cell body.
The utility model has the advantages that：
Difference rainfall infiltration of the present utility model and the continuous monitoring experimental provision of seepage failure, can simulate different dykes
The environmental conditions such as the dyke geological conditions of engineering, rainfall, carry out rainfall infiltration or infiltration respectively using distributed fiberoptic sensor
Destroy continuous monitoring experiment, carry out rainfall infiltration simultaneously and test with seepage failure continuous monitoring, obtain under different experimental conditions, respectively
Item physical parameter and the relation of the threshold value setting, effectively distinguish rainfall infiltration environment and rainfall infiltration, two kinds of environment of seepage failure
Condition, the monitoring of leakage for different dyke buildings provides data foundation, and then realize different dyke buildings effective monitoring and and
When early warning.
Brief description
Fig. 1 is apparatus structure schematic diagram of the present utility model.
Specific embodiment
Below in conjunction with drawings and Examples, this utility model is described in further detail.
As shown in figure 1, this utility model disclosed difference rainfall infiltration and the continuous monitoring experimental provision of seepage failure, wrap
Include cell body 1, in cell body 1, water retaining separater 2 is set and the first space 100 and second space 200 will be divided in cell body 1；
First space 100 bottom is equipped with pervious bed 41, and pervious bed 41 injects water 16, forms upper water, by adjusting
Upper pond level, can make to occur seepage failure in impermeable stratum 5；
Second space 200 bottom is equipped with pervious bed 42, is laid with MEMS pressure sensor 6, pervious bed in pervious bed 42
It is equipped with impermeable stratum 5 above in the of 42, in impermeable stratum 5, is laid with optical fiber grating temperature meter 11, lay in impermeable stratum 5 and be distributed
Formula Fibre Optical Sensor 10, accompanying-heat cable 9, one end of distributed fiberoptic sensor 10 connects light end box, and the other end accesses DTS optical fiber
Temperature measurer (not shown)；Second space 200 top setting simulated rainfall mechanism, this simulated rainfall mechanism includes stand 15, water
Case 14, shower nozzle 12, control valve 13, stand 15 is set up on second space, the fixing water tank 14 in stand 15 top, the fixing spray in lower section
12, the port of export of water tank 14 passes through pipeline communication shower nozzle 12, and this pipeline is provided with water yield for controlling water tank 14
Control valve 13.
Pervious bed 41, pervious bed 42, impermeable stratum 5, respective infiltration coefficient is different with thickness, infiltration coefficient and thickness root
Determine according to dyke building scene soil samples and detecting result.
Position that water retaining separater 2 is had a common boundary with impermeable stratum 5 in pervious bed 42, horizontally extend baffle plate 21, baffle plate 21
End is connected with cell body 1 side wall by horizontal filter screen 7, baffle plate 21 can extend seepage paths it is ensured that in experimentation vertical to infiltration
Destroy and occur in impermeable stratum 5, horizontal filter screen 7 can prevent pervious bed 42 earth material from mutually blending with impermeable stratum 5 earth material；For
Make device individually carry out rainfall infiltration experiment, with carry out simultaneously rainfall infiltration, seepage failure experiment environmental condition under, experiment knot
Fruit is more accurate, distinguishes different environmental conditions, the equal length of baffle plate 21 and horizontal filter screen 7 with effective.
Water retaining separater 2 is connected by filter screen 3 with cell body 1 bottom, and filter screen 3 is used for preventing the pervious bed in the first space 100
41 earth materials are mutually blended with pervious bed 42 earth material of second space 200.
For ensureing the reliability of device and watertightness, cell body 1 can be mutually bonded using bonding agent by seven pieces of lucites and
Become, distributed fiberoptic sensor 10 adopts epoxy resin to block at the wire hole of cell body 1.
Using the process that continuous monitoring experimental provision of the present utility model carries out rainfall infiltration continuous monitoring experiment it is：1) dike
Preventing engineering Field Research, obtains soil properties parameter, and this soil properties parameter includes the parameters that live soil samples and detecting obtains
Result etc., according to data from investigation and soil properties parameter, determines the parameters such as infiltration coefficient and the thickness of pervious bed and impermeable stratum；
According to the soil properties parameter obtaining, according to certain soil body particle diameter distribution, soil body density, set pervious bed and waterproof respectively
Layer thickness and infiltration coefficient, according to industry standard (《Standard for test methods of earthworks》) carry out the arrangement of soil sample；2) in experiment dress
Put middle laying pervious bed, impermeable stratum, simultaneously setting, connect each instrument, 3) experimental provision arrangement, connect after the completion of, to cell body 1
Inside add water until the soil sample of pervious bed 41,42 reaches saturation, make the water surface not cover impermeable stratum 5 He by control valve 8
The interface of pervious bed 42；4) pass through to adjust rainfall and the rainwater temperature of simulated rainfall mechanism, adjust the heating of accompanying-heat cable 9
Temperature, carries out rainfall infiltration experiment, in experimentation, records and analyzes in numerical analysis of rainfall infiltration, precipitation intensity, rainwater temperature,
The parameters such as the heating-up temperature of accompanying-heat cable, rainfall duration, the temperature of impermeable stratum, the pore water pressure of pervious bed with set
The fixed relation infiltrating threshold value, provides monitoring and early warning foundation for the monitoring of leakage under the Condition of Rainfall Infiltration of dyke building；
Using the process that continuous monitoring experimental provision of the present utility model carries out seepage failure continuous monitoring experiment it is：Upper
State process 3) after, the water injecting different water level elevations in the first space 100 carries out permeability test, adjusts accompanying-heat cable 9
Heating-up temperature, by the sensing result of distributed fiberoptic sensor, judges whether seepage；When distributed fiberoptic sensor
When temperature-measuring results value is equal to less than the first percolating threshold setting, judge to occur seepage, impermeable stratum 5 is internal to occur infiltration broken
Bad, now, record water level elevation, water temperature, the heating-up temperature of accompanying-heat cable, the temperature value of impermeable stratum 5, the hole of pervious bed 42
The parameters such as hydraulic pressure force value, experiment terminates, and the relation of analysis parameters and the first percolating threshold setting, is oozing of dyke building
Leakage monitoring provides monitoring and early warning foundation.
Using continuous monitoring experimental provision of the present utility model, carry out rainfall infiltration real with seepage failure continuous monitoring simultaneously
The process tested is：In aforementioned process 3) after, by adjusting rainfall and the rainwater temperature of simulated rainfall mechanism, adjust first empty
Between in 100 the different water level elevations of injection water, adjust the heating-up temperature of accompanying-heat cable 9, carry out rainfall infiltration simultaneously and infiltration is broken
Bad experiment, when the temperature-measuring results value of distributed fiberoptic sensor is equal to less than the second percolating threshold setting, judges to ooze
Leakage；In experimentation, record and analyze water level elevation when numerical analysis of rainfall infiltration, seepage failure, water temperature, rainfall intensity, rainwater
Every ginseng such as temperature, rainfall duration, the heating-up temperature of accompanying-heat cable, the temperature of impermeable stratum, pore water pressure of pervious bed 42
Number and the relation of the second percolating threshold setting, the determination of this second percolating threshold needs to exclude the impact of rain factor, i.e. will
The temperature-measuring results of the distributed fiberoptic sensor of horizontal filter screen 7 top, deduct the distributed fiberoptic sensor of baffle plate 21 top
Temperature-measuring results, set the second percolating threshold according to this temperature approach, reduce the erroneous judgement of monitoring of leakage under condition of raining, fail to report situation,
There is provided monitoring and early warning foundation for the monitoring of leakage under dyke building condition of raining.
The above is preferred embodiment of the present utility model and its know-why used, for the technology of this area
For personnel, in the case of without departing substantially from spirit and scope of the present utility model, any based on technical solutions of the utility model base
Equivalent transformation on plinth, simple replacement etc. are obvious to be changed, and belongs within this utility model protection domain.
Claims (7)
1. difference rainfall infiltration and the continuous monitoring experimental provision of seepage failure, it is characterised in that including cell body, set in this cell body
Put water retaining separater and the first space and second space in cell body, will be divided into,
It is equipped with pervious bed (42), this pervious bed is laid with pressure transducer in (42), this pervious bed (42) in this second space
On be equipped with impermeable stratum, be laid with distributed fiberoptic sensor, heating unit, temperature sensor in this impermeable stratum, this
Two space above setting simulated rainfall mechanisms,
It is equipped with pervious bed (41), this pervious bed (41) is upper to inject water, water can be by this pervious bed (41), permeable in this first space
Layer (42) penetrates into this impermeable stratum.
2. difference rainfall infiltration and seepage failure according to claim 1 continuous monitoring experimental provision it is characterised in that
Described pervious bed (41), pervious bed (42), the infiltration coefficient of impermeable stratum and thickness are according to dyke building scene soil samples and detecting knot
Fruit determines.
3. difference rainfall infiltration and seepage failure according to claim 2 continuous monitoring experimental provision it is characterised in that
The position that described water retaining separater has a common boundary in described pervious bed (42) and impermeable stratum, horizontally extends baffle plate, this baffle plate with
The side wall of described cell body is connected by a horizontal filter screen, the equal length of this baffle plate and horizontal filter screen.
4. difference rainfall infiltration and seepage failure according to claim 3 continuous monitoring experimental provision it is characterised in that
Described water retaining separater is connected by filter screen with described cell body bottom.
5. difference rainfall infiltration and seepage failure according to claim 4 continuous monitoring experimental provision it is characterised in that
The groove body sidewall of described second space is provided with valve.
6. difference rainfall infiltration and seepage failure according to claim 5 continuous monitoring experimental provision it is characterised in that
Described simulated rainfall mechanism includes stand, water tank, shower nozzle, and this staging erection is on described second space, solid above this stand
This water tank fixed, this shower nozzle is fixed in lower section, and the port of export of this water tank passes through this shower nozzle of pipeline communication, this pipeline is provided with for controlling
Make the control valve of the water yield of this water tank.
7. difference rainfall infiltration and seepage failure according to claim 6 continuous monitoring experimental provision it is characterised in that
Described cell body is mutually bonded using bonding agent by some pieces of lucites and forms, and described distributed fiberoptic sensor is in described cell body
Wire hole at using epoxy resin closure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733143.8U CN205981995U (en) | 2016-07-12 | 2016-07-12 | Difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620733143.8U CN205981995U (en) | 2016-07-12 | 2016-07-12 | Difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205981995U true CN205981995U (en) | 2017-02-22 |
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ID=58023931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620733143.8U Expired - Fee Related CN205981995U (en) | 2016-07-12 | 2016-07-12 | Difference rainfall infiltration and continuous monitor experimental apparatus that permeates destruction |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928839A (en) * | 2016-07-12 | 2016-09-07 | 中国水利水电科学研究院 | Continuous monitoring experimental device and method for distinguishing rainfall infiltration and seepage failure |
| CN109060631A (en) * | 2018-09-07 | 2018-12-21 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
-
2016
- 2016-07-12 CN CN201620733143.8U patent/CN205981995U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105928839A (en) * | 2016-07-12 | 2016-09-07 | 中国水利水电科学研究院 | Continuous monitoring experimental device and method for distinguishing rainfall infiltration and seepage failure |
| CN105928839B (en) * | 2016-07-12 | 2018-09-28 | 中国水利水电科学研究院 | Distinguish the continuous monitoring experimental provision and method of rainfall infiltration and seepage failure |
| CN109060631A (en) * | 2018-09-07 | 2018-12-21 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
| CN109060631B (en) * | 2018-09-07 | 2019-06-14 | 山东科技大学 | A kind of varying head permeability coefficient measuring system and measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20210712 |