CN206385495U - A kind of earth and rockfill dam landslide observed seepage behavior simulation test device - Google Patents
A kind of earth and rockfill dam landslide observed seepage behavior simulation test device Download PDFInfo
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- CN206385495U CN206385495U CN201720051549.2U CN201720051549U CN206385495U CN 206385495 U CN206385495 U CN 206385495U CN 201720051549 U CN201720051549 U CN 201720051549U CN 206385495 U CN206385495 U CN 206385495U
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Abstract
The utility model discloses a kind of earth and rockfill dam landslide observed seepage behavior simulation test device, including chamber, water inlet system, aerial drainage simulation system, measuring system, earth and rockfill dam model；Earth and rockfill dam model is located in chamber, and water inlet system is located at chamber upstream side left upper portion, for importing experimental water；Aerial drainage simulation system is located at chamber bottom, for simulating the aerial drainage process under various working, measuring system includes control cabinet, upper pond level meter, level of tail water meter, electrical survey electrode, osmometer, connecting line, control cabinet platform, water-level gauge platform, the real-time measurement for realizing a variety of Monitoring Datas；The utility model can really under the conditions of mimic water-depth cataclysm slope and land slide process, realize the dynamic monitoring of observed seepage behavior change, the research of the instantaneous observed seepage behavior change to be come down under the conditions of water level cataclysm provides dynamic space observed seepage behavior information.
Description
Technical field
The utility model is related to the native stone that the simulated experiment field of earth-rock dam seepage condition, especially sudden lower in water level induce
The observed seepage behavior real-time Simulation test of dam upstream reservoir bank landslide and test monitoring field.
Background technology
China possesses reservoir dam more than 90,000, and the overwhelming majority is earth and rockfill dam, these reservoir dams be defending flood disaster and
Ensure that the development of the national economy has played important function.But it is due to a variety of causes, external environment factor and itself is depositing disease
Under the combined influence of danger, seepage failure, even landslide, the risk of dam break are there is.In recent years, extreme climate phenomenon and earthquake
Disaster takes place frequently so that the risk increase on earth and rockfill dam landslide.The cataclysm of reservoir level can upset the original observed seepage behavior of dam, induce and slide
Slope, wherein, the landslide of more than half occurs during sudden lower in water level.Reservoir is influenceed by earthquake, heavy rain, or is being applied
During work, retaining etc., be likely to undergo the condition of work of sudden drawdown, it is this under the conditions of easily cause the cunning of upstream dam slope
Slope.
Due to reservoir level rapid drawdown process be one as infiltration coefficient is gradually changed, dam space observed seepage behavior dynamically become
The process of change, and the change procedure of different materials is different, by conventional numerical analysis method, to carry out big measurement parameters false
If, it is difficult to understand actual observed seepage behavior change procedure, and by measurement means such as osmometer, pressure-measuring pipes, then need arrangement big
Amount monitoring instrument can destroy original soil structures simultaneously, influence observed seepage behavior.For this reason, it may be necessary to which a set of convenient can simulate a variety of ooze
Stream process, while the system of lossless real-time monitoring observed seepage behavior change.This under reservoir rapid drawdown, the mechanism of production on dam landslide,
The research early warning application of observed seepage behavior changing rule has very important value.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the utility model provides a kind of earth and rockfill dam landslide observed seepage behavior
Simulation test device, can simulate the process of the rapid induced landslide of various working lower storage reservoir water level, realize earth and rockfill dam space seepage flow
The real-time acquisition of state information.
Technical scheme：In order to solve the above-mentioned technical problem, the utility model provides a kind of earth and rockfill dam landslide observed seepage behavior mould
Intend experimental rig, including chamber, water inlet system, aerial drainage simulation system, measuring system, earth and rockfill dam model, earth and rockfill dam model position
In in chamber, section is trapezoidal.
Preferably, described chamber includes casing, upstream outlet valve, downstream outlet valve, staircase 1, staircase 2, staircase
3rd, staircase 4, casing is cuboid, and material is PVC board, and outside has brandreth to fix, while casing load bearing stength is ensured, really
Protect the external visual of experimentation；Sky is faced on casing top, by loop wheel machine, hangs in and installs available for by experimental facilities and material；
Upstream outlet valve is located at chamber upstream side bottom, and downstream outlet valve is located at chamber downstream side bottom, and downstream outlet valve is maximum
Flow is not less than 2.0m3/ h, upstream aerial drainage water body can be drained in real time by realizing in experiment, reach the true simulation of aerial drainage；Staircase 1
The vertical casing in upstream side outwardly and inwardly surface is fixed on vertically respectively with staircase 2, under 4 points of staircase 3 and staircase are fixed on vertically
The vertical box house in side and outer surface are swum, for experimenter, the discrepancy and operation of instrument.
Preferably, described earth and rockfill dam model is provided with overlapping type with experimental box body at bottom surface, left side, right contact position
Transition zone, transition interface is the M type groove structures of PVC material, and section is trapezoidal, and one end is cementing to be fixed on casing, the other end
Insert the earth and rockfill dam soil body, slot structure and earth and rockfill dam soil body contact surface are hair side, to extend percolation path, reduce casing and the soil body it
Between due to the different influence to experiment of permeability.
Preferably, described water inlet system is located at casing upstream side right upper portion, water inlet system includes water intaking valve, water inlet
Flowmeter, surge tank, water intaking valve import connect external supply channel, and water inlet valve outlet passes through feed water flow gauge, and penetrates
Casing；Surge tank is upper opening casing, is fixed on into water valve outlet bottom, and surge tank lower half is cuboid, buffering
Tank lower half is provided with seepy material, and sky is faced close to casing one, unobstructed, to avoid water inlet system the injecting process to upstream
The influence on slope.
Preferably, described aerial drainage simulation system includes water level control flexible pipe, electronics water valve, discharge flow meter, aerial drainage
Simulation pipe, aerial drainage simulation pipe import is passed from casing upstream bottom, and electronics water valve and discharge flow meter are housed on aerial drainage simulation pipe,
Aerial drainage simulation pipe is penetrated from downstream bottom half, with water level control tube socket.
Preferably, described water level control flexible pipe is the flexible plastic pipe of Bendable telescopic, lower end with aerial drainage with simulating
Pipe junction is filled with glass cement, prevents leak；There is hook at water level control flexible pipe outlet, wall box can be articulated in and be carved with water
On the extension chi of position height, the lowest water level for controlling upstream aerial drainage process；Aerial drainage simulates pipe import and water level control pipe flexible pipe
Block dirty filter screen in outlet.
Preferably, described measuring system include control cabinet, upper pond level meter, level of tail water meter, electrical survey electrode,
Osmometer, connecting line, control cabinet platform, water-level gauge platform, control cabinet platform are located at casing upstream side left side top, are PVC board,
Based on placing control cabinet and fixed upper pond level admittedly；Water-level gauge platform is located at casing downstream left side top, is PVC board, uses
In fixed downstream water-level gauge.
Preferably, described electrical survey electrode is laid along earth and rockfill dam vertical section, vertical section quantity is more than or equal to 2 and broken
Face, the measuring electrode of each vertical section is equidistantly laid, in the measuring electrode part insertion earth and rockfill dam soil body.
Preferably, described osmometer is laid in one cross section of earth and rockfill dam, wait elevation to lay, be embedded to the earth and rockfill dam soil body
Inside, osmotic pressure count number is more than or equal to 2, while osmometer is located at what is buried in the vertical section of electrical survey electrode with osmometer
Cross section crossover location.
Preferably, described control cabinet passes through connecting line and feed water flow gauge, upper pond level meter, osmometer, measurement electricity
Pole, level of tail water meter, electronics water valve, the connection of discharge flow meter, for gathered data.
Beneficial effect：A kind of earth and rockfill dam landslide observed seepage behavior simulation test device of the present utility model, compensate for existing soil
The deficiency of masonry dam landslide experimental provision function technology, by realizing the process of earth and rockfill dam aerial drainage and seepage flow, can truly be simulated a variety of
The sudden drawdown of operating mode lower storage reservoir and process of landslides, realize effective acquisition of hollow observed seepage behavior information of earth and rockfill dam process of landslides,
Structural integrity, it is easy for installation, experiment difficulty and experimentation cost can be reduced, test efficiency is improved, under reservoir level rapid drawdown, greatly
The mechanism of production on dam landslide, the research early warning application of observed seepage behavior changing rule have very important value.
Brief description of the drawings
A kind of earth and rockfill dam landslide observed seepage behavior simulation test device top views of Fig. 1.
A kind of earth and rockfill dam landslide observed seepage behavior simulation test device A-A sectional drawings of Fig. 2.
A kind of transition layer structure figures of earth and rockfill dam landslide observed seepage behavior simulation test device of Fig. 3.
A kind of extension chis of earth and rockfill dam landslide observed seepage behavior simulation test device of Fig. 4.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 4, a kind of earth and rockfill dam landslide observed seepage behavior simulation test device of the present utility model, including examination
Tryoff, water inlet system, aerial drainage simulation system, measuring system, earth and rockfill dam model, earth and rockfill dam model are located in chamber, and section is
It is trapezoidal.
The utility model, earth and rockfill dam model, high 2.0m, top width 0.8m, bottom width 7.8m, the up stream slope gradient 1:2, downstream slope 1:
1.5, earth and rockfill dam model is provided with overlapping type transition zone, transition stratum boundary with experimental box body in bottom surface, left surface, right flank contact site
Face is the M type groove structures of PVC material, and section is trapezoidal, and one end is cementing to be fixed on casing, the other end insertion earth and rockfill dam soil body,
Slot structure is hair side with earth and rockfill dam soil body contact surface；By M type groove structures, extend percolation path, reduce between casing and the soil body
Due to the different influences to experiment of permeability.
The utility model, chamber includes casing, upstream outlet valve, downstream outlet valve, staircase 1, staircase 2, staircase 3, helped
Ladder 4, casing is that cuboid length is 11.0m, 5.0m, 2.5m, and material is PVC board, and outside has brandreth to fix, and is being ensured
While casing load bearing stength, it is ensured that experimentation it is external visual；Sky is faced on casing top, by loop wheel machine, available for will experiment
Equipment and material hang in and installed, and upstream outlet valve is located at chamber upstream side bottom, downstream outlet valve and is located at chamber downstream
Side bottom, outlet valve maximum outflow in downstream is 3.0m3/h；Staircase 1 and staircase 2 are fixed on the vertical casing in upstream side vertically respectively
Outwardly and inwardly surface, 4 points of staircase 3 and staircase are fixed on the vertical box house in downstream and outer surface vertically.
Preferably, described water inlet system is located at casing upstream side right upper portion, water inlet system includes water intaking valve, water inlet
Flowmeter, surge tank, water intaking valve import connect external supply channel, and water inlet valve outlet passes through feed water flow gauge, and passes through
Casing；Surge tank is upper opening casing, is fixed on into water valve outlet bottom, and surge tank lower half is cuboid, buffering
Tank lower half is provided with seepy material, and sky is faced close to casing one.
Preferably, described aerial drainage simulation system includes water level control flexible pipe, electronics water valve, discharge flow meter, aerial drainage
Simulation pipe, electronics water valve selects two-way direct-acting electromagnetic valve, and discharge flow meter selects LDG intelligent electromagnetic flowmeters, aerial drainage simulation
Manage as PVC plastic expects pipe；Aerial drainage simulation pipe import is passed from casing upstream bottom, and electronics water valve and aerial drainage are housed on aerial drainage simulation pipe
Flowmeter, aerial drainage simulation pipe is penetrated from downstream bottom half, with water level control tube socket.
Preferably, described water level control flexible pipe is the flexible plastic pipe of Bendable telescopic, lower end with aerial drainage with simulating
Pipe junction is filled with glass cement, prevents leak；There is hook at water level control flexible pipe outlet, wall box can be articulated in and be carved with water
On the extension chi of position height；Aerial drainage simulates pipe import and water level control pipe flexible pipe outlet blocks dirty filter screen provided with stainless steel.
Preferably, described measuring system include control cabinet, upper pond level meter, level of tail water meter, electrical survey electrode,
Osmometer, connecting line, control cabinet platform, water-level gauge platform, upper pond level meter, the level of tail water are calculated as integral type supersonic liquid level
Meter, osmotic pressure is calculated as vibrating wire piezometer, and range is 0.05MP；Control cabinet platform is located at casing upstream side left side top, is PVC
Plate, based on placing control cabinet and fixed upper pond level admittedly；Water-level gauge platform is located at casing downstream left side top, is PVC board,
For fixed downstream water-level gauge.
Preferably, described electrical survey electrode is laid along earth and rockfill dam vertical section, vertical section is 2 sections, and one breaks
Face is laid in dam crest, and another section is laid in the height of dam position of up stream slope 2/3；The electrical survey electrode of each vertical section is equidistant
Lay, spacing is 1.5m, and both sides electrical survey electrode and two side box bodies are apart from 0.25m, electrical survey electrode part insertion soil
In the masonry dam soil body.
Preferably, described osmometer is laid in one cross section of earth and rockfill dam, section oozes apart from left side casing 0.25m
Pressure meter is contour to be laid, and is embedded to earth and rockfill dam inside soil body, is highly 0.5m, and osmotic pressure count number is 4, while osmometer is located at electrical method
In the vertical section of measuring electrode.
Preferably, described control cabinet passes through connecting line and feed water flow gauge, upper pond level meter, osmometer, measurement electricity
Pole, level of tail water meter, electronics water valve, the connection of discharge flow meter, for gathered data.
A kind of analogue experiment method of earth and rockfill dam landslide observed seepage behavior simulation test device, comprises the following steps：
The first step, assembles each component, connects respective circuit, checks appliance integrality；
Second step, the operating mode of selection level altitude measures simulation, including,
Earth and rockfill dam model has been filled, water body is upstream poured by water inlet system, water level reaches upstream standard water level 1.7m
Stop, the mouth of pipe for linking up with fixed downstream water level control flexible pipe is highly 1.2m, opens control cabinet and carries out data acquisition, downstream water outlet
Valve full-gear；Electronics water valve is opened, after simulation flood arrives, destroy by rush of water defeated outlet structure escape works, causes upper pond level rapid decrease
Process；When upper pond level is down to 0.7m, aerial drainage stops, and upstream water body begins through dam free permeation and causes downstream, works as cunning
When slope occurs, the landslide moment is recorded；The frequency acquisition of whole process is 15 minutes each；Select level of tail water control soft
The mouth of pipe of pipe highly repeats measurement, record data for 1.0m, 0.8m, 0.6m.
3rd step, data preparation, the data to electrical survey carry out back analysis, obtain 2 section resistivity datas；It is right
Osmotic pressure, which is counted, is reorganized, and obtains osmotic pressure head value；Interpretation of records upper pond level meter, level of tail water meter observation data；Contrast
Same position, osmotic pressure head in the same time and resistivity, obtain the corresponding resistivity data of saturation, so as to obtain 2 sections not
Infiltration line position in the same time.
Described above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (4)
- The observed seepage behavior simulation test device 1. a kind of earth and rockfill dam comes down, it is characterised in that：Including chamber, water inlet system, aerial drainage Simulation system, measuring system, earth and rockfill dam model, earth and rockfill dam model are located in chamber, and section is trapezoidal；Chamber includes casing, upstream outlet valve, downstream outlet valve, staircase 1, staircase 2, staircase 3, staircase 4, and casing is rectangular Body, material is PVC board, and outside has brandreth to fix, and sky is faced on casing top；Upstream outlet valve is located at chamber upstream side bottom, Downstream outlet valve is located at chamber downstream side bottom, and downstream outlet valve maximum stream flow is not less than 2.0m3/h；2 points of staircase 1 and staircase The vertical casing in upstream side outwardly and inwardly surface it is not fixed on vertically, it is vertical that staircase 3 and staircase 4 are fixed on downstream vertically respectively Box house and outer surface；Earth and rockfill dam model is provided with the transition zone of overlapping type with experiment box body at bottom surface, left side, right contact position, and transition zone is The M type groove structures of PVC material, section is trapezoidal, and one end is cementing to be fixed on casing, the other end insertion earth and rockfill dam soil body, groove knot Structure is hair side with earth and rockfill dam soil body contact surface.
- 2. a kind of earth and rockfill dam landslide observed seepage behavior simulation test device according to claim 1, it is characterised in that：Described Water inlet system is located at casing upstream side right upper portion, and water inlet system includes water intaking valve, feed water flow gauge, surge tank, water intaking valve Import connects external supply channel, and water inlet valve outlet passes through feed water flow gauge, and penetrates in casing；Surge tank is opened for top Mouth casing, is fixed on into water valve outlet bottom, surge tank lower half is cuboid, and surge tank lower half is provided with pervious material Material, sky is faced close to casing one, unobstructed.
- 3. a kind of earth and rockfill dam landslide observed seepage behavior simulation test device according to claim 2, it is characterised in that：Described Aerial drainage simulation system includes water level control flexible pipe, electronics water valve, discharge flow meter, aerial drainage simulation pipe；Aerial drainage simulation pipe import is passed from casing upstream bottom, and electronics water valve and discharge flow meter are housed on aerial drainage simulation pipe, let out Flow field simulation pipe is penetrated from downstream bottom half, with water level control tube socket；Water level control flexible pipe is the flexible plastic pipe of Bendable telescopic, and lower end with aerial drainage simulation pipe junction with being filled with glass Glue, prevents leak；There is hook at water level control flexible pipe outlet, wall box can be articulated in and be carved with the extension chi of height of water level；Aerial drainage simulates pipe import and water level control pipe flexible pipe outlet blocks dirty filter screen.
- 4. a kind of earth and rockfill dam landslide observed seepage behavior simulation test device according to claim 3, it is characterised in that：Described Measuring system includes control cabinet, upper pond level meter, level of tail water meter, electrical survey electrode, osmometer, connecting line, control cabinet and put down Platform, water-level gauge platform, control cabinet platform are located at casing upstream side left side top, are PVC board, for placing control cabinet and fixing Swim water-level gauge；Water-level gauge platform is located at casing downstream left side top, is PVC board, for fixed downstream water-level gauge；Electrical survey electrode is laid along earth and rockfill dam vertical section, and vertical section quantity is more than or equal to 2 sections, the measurement of each vertical section Electrode is equidistantly laid, in the measuring electrode part insertion earth and rockfill dam soil body；Osmometer is laid in one cross section of earth and rockfill dam, waits elevation to lay, and is embedded to earth and rockfill dam inside soil body, and osmotic pressure count number is more than Equal to 2, while osmometer is located at the cross section crossover location buried in the vertical section of electrical survey electrode with osmometer；Control cabinet passes through connecting line and feed water flow gauge, upper pond level meter, osmometer, electrical survey electrode, level of tail water meter, electricity Sub- water valve, the connection of discharge flow meter, for gathered data.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720051549.2U CN206385495U (en) | 2017-01-17 | 2017-01-17 | A kind of earth and rockfill dam landslide observed seepage behavior simulation test device |
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| CN201720051549.2U CN206385495U (en) | 2017-01-17 | 2017-01-17 | A kind of earth and rockfill dam landslide observed seepage behavior simulation test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702952A (en) * | 2017-01-17 | 2017-05-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Test device and method for simulating seepage condition of landslide of earth-rock dam |
| CN108458848A (en) * | 2018-03-20 | 2018-08-28 | 常州大学 | Simulations of Water Waves Due To Landslides is to submarine pipeline shock simulation experimental provision and method |
| CN113091848A (en) * | 2021-04-08 | 2021-07-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for measuring water level of concrete faced rockfill dam reservoir |
-
2017
- 2017-01-17 CN CN201720051549.2U patent/CN206385495U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702952A (en) * | 2017-01-17 | 2017-05-24 | 水利部交通运输部国家能源局南京水利科学研究院 | Test device and method for simulating seepage condition of landslide of earth-rock dam |
| CN106702952B (en) * | 2017-01-17 | 2018-08-14 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of earth and rockfill dam landslide observed seepage behavior simulation test device and method |
| CN108458848A (en) * | 2018-03-20 | 2018-08-28 | 常州大学 | Simulations of Water Waves Due To Landslides is to submarine pipeline shock simulation experimental provision and method |
| CN113091848A (en) * | 2021-04-08 | 2021-07-09 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for measuring water level of concrete faced rockfill dam reservoir |
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Granted publication date: 20170808 Effective date of abandoning: 20180814 |