CN107238537A - Reservoir level changes band banks destruction experimental rig and its application method - Google Patents
Reservoir level changes band banks destruction experimental rig and its application method Download PDFInfo
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- CN107238537A CN107238537A CN201710599970.1A CN201710599970A CN107238537A CN 107238537 A CN107238537 A CN 107238537A CN 201710599970 A CN201710599970 A CN 201710599970A CN 107238537 A CN107238537 A CN 107238537A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0062—Crack or flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
Band banks destruction experimental rig is changed the invention discloses a kind of reservoir level, and provides its application method, important experiment condition supporting role is played with destructive characteristics to the deformation of different soil bank slopes and class soil bank slope for the lifting of Science Explorations reservoir level.Including model test groove, side sets basement rock bank slope in the model test groove, and opposite side sets reservoir level scale；The reservoir level scale is used for the situation of change for recording reservoir level, the surface of the basement rock bank slope, which is built, test model bank slope, bank slope rock soil interface is formed between the test model bank slope and basement rock bank slope, the bank slope rock soil interface is provided with some pore water pressure sensors, the delta data for measuring test model bank soil pore water pressure in reservoir level lifting process；The bottom land of the model test groove is provided with valve and water pump, and the water pump is used for the water filling into model test groove, and the valve simulates reservoir filling when closing, the valve simulates flash when opening.
Description
Technical field
The present invention relates to Geological Hazards Monitoring early warning field, band banks destruction is changed more particularly, to a kind of reservoir level
Experimental rig and its application method.
Background technology
In the late three decades, for Devoting Major Efforts To Developing hydroelectric resources, flood control demand and regional Water Resource Adjustment ＆ Distribution is taken into account, is built
A large amount of large-scale and super-huge reservoirs.According to incompletely statistics, 80~90% reservoir landslide is relevant with storehouse water activity, anticipates within such as 1963
Big profit the north Vajont reservoirs are after ordinary water level decline, and 2.75 × 108m3 concordant rock mass pours reservoir, and surging for evoking is turned over
More dam, causes the people of dam downstream more than 2600 wrecked, is the reservoir accident event of maximum in the world at present；Nineteen fifty-nine Hunan Zhe Xi
Occurs extensive landslide reservoir filling initial stage at the right bank 1.5km of dam upstream；Guangxi Guishi reservoir reserve-water-level is higher by former river
During bed water level 20m, in the valley area of storehouse head 6.5km length, more than 60 places of storehouse bank generation collapse cunning；After the Feng Tan reservoir fillings of Hunan, its
There is unstable failure, the ten thousand stere of volume 130 suddenly in accumulation body at the 8km of upstream.Three Gorges Reservoir is after 2003 put into operation,
Through inducing thousand by the resurrection of the super large-scale landslides such as level ground, cold water well, goddess's small stream, riverine two will necessarily be caused during reservoir is run
145~175m of bank scopes major part bank stability deterioration even sudden destruction, as shown in Figure 1.Large-scale super-huge reservoir bank
The deformation on slope always enjoys the science that the field scientist such as Geotechnical Engineering, hydraulic engineering, Geological Engineering pays high attention to destruction
Problem.
The stability of reservoir stability especially soil bank slope is very sensitive to the response process of reservoir level eustasy, this
It is that reservoir stability studies one of most active field at present, existing research emphasizes the permeability of the soil body mainly for soil bank slope
And the ill-effect of osmosis opposite bank slope stability that Reservoir Water Level is caused, and for class soil bank slope and soil body physical force
Learn degradation characteristic research of the parameter under reservoir level periodicity soaking conditionses few, do not consider that reservoir level multicycle is changed to bank slope
The influence of stability, ignores the research to bank slope destructive process in reservoir level uphill process, and its basic reason is a lack of storehouse water
Banks destruction dedicated experiments device under the conditions of the eustasy of position.
To sum up, the deformation of bank slope and destructive characteristics are the core of reservoir stability stability analysis under the conditions of reservoir lifting in storehouse changes
Heart Basic Science Problem, is also the key link of scientific forecasting navigation section Simulations of Water Waves Due To Landslides disaster.
The content of the invention
Band banks destruction examination is changed it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of reservoir level
Experiment device, and its application method is provided, lift the change to different soil bank slopes and class soil bank slope for Science Explorations reservoir level
Shape plays important experiment condition supporting role with destructive characteristics.
The object of the present invention is achieved like this：
A kind of reservoir level is changed in band banks destruction experimental rig, including model test groove, the model test groove
Side sets basement rock bank slope, and opposite side sets reservoir level scale；The reservoir level scale is used for the situation of change for recording reservoir level,
The surface of the basement rock bank slope, which is built, test model bank slope, and bank slope rock is formed between the test model bank slope and basement rock bank slope
Soil Interface, the bank slope rock soil interface is provided with some pore water pressure sensors, for measuring reservoir level lifting process pilot scale
Test the delta data of model bank soil pore water pressure；
The bottom land of the model test groove is provided with valve and water pump, and the water pump is used for the water filling into model test groove,
The valve simulates reservoir filling when closing, the valve simulates flash when opening.
Further, space is in rectangular-shape in the groove of the model test groove, and it is included along the horizontal phase of model test groove
To the first wall of setting, the second wall, the basement rock bank slope includes facade, domatic, the base laterally set along model test groove
The facade on rocky coast slope is fitted with the first wall of model test groove, and the reservoir level scale is arranged on the second wall of model test groove
On, make the domatic of the basement rock bank slope, reservoir level scale in opposite distribution.
Further, the length of the model test groove transversely is 600cm, is 400cm along the length of longitudinal direction, is highly
250cm。
Further, the model test groove is formed by masonry of cement mortar, and the basement rock bank slope is built by laying bricks or stones by cemented rock
Form, make basement rock bank slope and model test groove sidewall and the not permeable leak of bottom of pond.
Further, the domatic inclination angle of the basement rock bank slope is 40 degree.
Further, the pore water pressure sensor is connected by wire with the tester outside model test groove.
Further, the reservoir level scale is provided with high-water line, low water line, for the pole for controlling reservoir level to change
Extreme position.
Further, each pore water pressure sensor on the bank slope rock soil interface is laterally homogeneous along model test groove
Distribution.
A kind of reservoir level changes the application method with banks destruction experimental rig, comprises the following steps：
Step 1, according to operating condition of test demand, the soil body is filled on basement rock bank slope surface, test model bank slope is formed；
Step 2, each pore water pressure sensor is opened；
Step 3, according to the reservoir level eustasy amplitude and rate of change of operating condition of test demand, model test groove water filling is allowed
Or sluice；
Step 4, test model bank soil pore water pressure change number is continuously measured by pore water pressure sensor
According to, and the mineralizing evolution and bank slope breakoff phenomenon of viewing test model bank slope surface tension fracture；
Step 5, experimental data is analyzed, formation and the Evolution of operating condition of test lower storage reservoir bank slope Rockfall hazard is disclosed, uses
In deformation and destructive characteristics of the exploration reservoir level variation to different soil bank slopes and class soil bank slope, lifting pair under operating condition of test
The Scientific Cognition level of bank slope of reservoir geological disaster.
Further, the operating condition of test demand includes soil bank slope type, soil thickness, soil body compactness, initially contained
Water, test model bank slope inclination angle.
By adopting the above-described technical solution, using the present invention, experiment every time can obtain the operating condition of test and utilize the examination
The feature that the soil bank slope that experiment device is disclosed is presented in Reservoir Water Level, for example：Presentation drawing breaks bad during reservoir level rises
Feature and the presentation compression shear destructive characteristics during reservoir level lands；After repetition test, soil body bank slope can be explored under experimental conditions
Type (such as soil bank slope, class soil bank slope), soil thickness, soil body compactness, initial water content, bank slope inclination angle, reservoir level liter
The forming process and Evolution of bank slope Rockfall hazard under the conditions of the drop parameter such as amplitude of variation and rate of change is combined.
Brief description of the drawings
Fig. 1 is that reservoir level changes the structural representation with banks destruction experimental rig；
Fig. 2 is the distribution schematic diagram of Fig. 1 Pore Pressure sensors；
Fig. 3 is that water level rises bank slope pore water pressure test curve schematic diagram；
Fig. 4 is drawdown bank slope pore water pressure test curve schematic diagram；
Fig. 5 is Three Gorges Reservoir bank slope test model.
Reference
In accompanying drawing, 1：Model test groove, 2：Basement rock bank slope, 3：Test model bank slope, 4：Bank slope rock soil interface, 5：Model groove
Wall, 6：High water level (m), 7：Low water level (m), 8：Reservoir level scale (m), 9：Pore water pressure sensor, 10：Valve, 11：Water
Pump.
Embodiment
It is that reservoir level changes a kind of preferred embodiment with banks destruction experimental rig, this hair referring to Fig. 1, Fig. 2
Bright to be designed according to the theory of similarity, including model test groove, side sets basement rock bank slope in the model test groove, and opposite side is set
Reservoir level scale；The reservoir level scale is used for the situation of change for recording reservoir level, and the basement rock bank slope is built by laying bricks or stones by cemented rock
Form, make the not permeable leak of basement rock bank slope.The surface of the basement rock bank slope, which is built, test model bank slope, the test model bank slope
Bank slope rock soil interface is formed between basement rock bank slope, the bank slope rock soil interface is provided with some pore water pressure sensors, used
It is described in measurement reservoir level lifting process in the delta data of test model bank soil pore water pressure, the present embodiment
Bank slope rock soil interface is provided with each pore water pressure sensing on six pore water pressure sensors, the bank slope rock soil interface
Device is laterally uniform along model test groove.The pore water pressure sensor passes through the test outside wire and model test groove
Instrument is connected.
Space is in rectangular-shape in the groove of the model test groove, and the model test groove is formed by masonry of cement mortar,
Make model test groove sidewall and the not permeable leak of bottom of pond.It includes four block models cell walls, wherein having laterally opposite along model test groove
In the first wall, the second wall set, the present embodiment, the length of the model test groove transversely is 600cm, along the length of longitudinal direction
It is highly 250cm for 400cm.The basement rock bank slope includes facade, domatic, the basement rock laterally set along model test groove
The facade of bank slope is fitted with the first wall of model test groove, and the reservoir level scale is arranged on the second wall of model test groove,
Make the domatic of the basement rock bank slope, reservoir level scale in opposite distribution.In the present embodiment, the domatic inclination angle of the basement rock bank slope is
40 degree.The reservoir level scale is provided with high-water line, low water line, for the extreme position for controlling reservoir level to change.
The bottom land of the model test groove is provided with valve and water pump, and the water pump is used for the water filling into model test groove,
The valve simulates reservoir filling when closing, the valve simulates flash when opening.In the present embodiment, the valve passes through
Pipeline is connected to model test groove, and the water pump is connected on the outside of valve, and valve is opened to the opening width of setting during sluicing.When
So, valve, water pump can also distinguish link model test flume.
A kind of reservoir level changes the application method with banks destruction experimental rig, comprises the following steps：
Step 1, according to operating condition of test demand, the soil body is filled on basement rock bank slope surface, test model bank slope, the examination is formed
Test duty requirements including soil bank slope type (such as soil bank slope, class soil bank slope), soil thickness, soil body compactness, initially contain
Water, test model bank slope inclination angle；
Step 2, each pore water pressure sensor is opened；
Step 3, according to the reservoir level eustasy amplitude and rate of change of operating condition of test demand, model test groove water filling is allowed
Or sluice；
Step 4, test model bank soil pore water pressure change number is continuously measured by pore water pressure sensor
According to, and the mineralizing evolution and bank slope breakoff phenomenon of viewing test model bank slope surface tension fracture；
Step 5, experimental data is analyzed, formation and the Evolution of operating condition of test lower storage reservoir bank slope Rockfall hazard is disclosed, uses
In deformation and destructive characteristics of the exploration reservoir level variation to different soil bank slopes and class soil bank slope, lifting pair under operating condition of test
The Scientific Cognition level of bank slope of reservoir geological disaster.
The reservoir level of experimental rig setting measures scale, is designed according to the theory of similarity, such as Three Gorges Reservoir bank slope
When test model geometric similarity ratio takes 25, the speed likelihood ratio is 5, more as shown in Figure 5 than chi.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of reservoir level changes band banks destruction experimental rig, it is characterised in that：Including model test groove, the model
Side sets basement rock bank slope in test flume, and opposite side sets reservoir level scale；The reservoir level scale is used to record reservoir level
Situation of change, the surface of the basement rock bank slope, which is built, test model bank slope, between the test model bank slope and basement rock bank slope
Bank slope rock soil interface is formed, the bank slope rock soil interface is provided with some pore water pressure sensors, for measuring reservoir level liter
The delta data of test model bank soil pore water pressure during drop；
The bottom land of the model test groove is provided with valve and water pump, and the water pump is used for the water filling into model test groove, described
Valve simulates reservoir filling when closing, the valve simulates flash when opening.
2. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The model
Space is in rectangular-shape in the groove of test flume, and it includes the first wall, the second wall being laterally oppositely arranged along model test groove, described
Basement rock bank slope includes the facade, domatic laterally set along model test groove, the facade of the basement rock bank slope and model test groove
First wall is fitted, and the reservoir level scale is arranged on the second wall of model test groove, makes domatic, the storehouse water of the basement rock bank slope
Position scale is in opposite distribution.
3. reservoir level according to claim 2 changes band banks destruction experimental rig, it is characterised in that：The model
The length of test flume transversely is 600cm, is 400cm along the length of longitudinal direction, is highly 250cm.
4. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The model
Test flume is formed by masonry of cement mortar, and the basement rock bank slope is built by laying bricks or stones by cemented rock to be formed, and tries basement rock bank slope and model
Test groove sidewall and the not permeable leak of bottom of pond.
5. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The basement rock
The domatic inclination angle of bank slope is 40 degree.
6. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The hole
Water pressure sensor is connected by wire with the tester outside model test groove.
7. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The storehouse water
Position scale is provided with high-water line, low water line, for the extreme position for controlling reservoir level to change.
8. reservoir level according to claim 1 changes band banks destruction experimental rig, it is characterised in that：The bank slope
Each pore water pressure sensor on rock soil interface is laterally uniform along model test groove.
9. a kind of reservoir level changes the application method with banks destruction experimental rig, it is characterised in that comprise the following steps：
Step 1, according to operating condition of test demand, the soil body is filled on basement rock bank slope surface, test model bank slope is formed；
Step 2, each pore water pressure sensor is opened；
Step 3, according to the reservoir level eustasy amplitude and rate of change of operating condition of test demand, allow and model test groove water filling or let out
Water；
Step 4, test model bank soil pore water pressure delta data is continuously measured by pore water pressure sensor, and
The mineralizing evolution and bank slope breakoff phenomenon of viewing test model bank slope surface tension fracture；
Step 5, analyze experimental data, disclose operating condition of test lower storage reservoir bank slope Rockfall hazard formation and Evolution, for
Deformation and destructive characteristics of the reservoir level variation to different soil bank slopes and class soil bank slope are explored under operating condition of test, is lifted to reservoir
The Scientific Cognition level of bank slope geological disaster.
10. reservoir level according to claim 9 changes the application method with banks destruction experimental rig, its feature exists
In：The operating condition of test demand includes soil bank slope type, soil thickness, soil body compactness, initial water content, test model bank
Slope inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599970.1A CN107238537A (en) | 2017-07-21 | 2017-07-21 | Reservoir level changes band banks destruction experimental rig and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710599970.1A CN107238537A (en) | 2017-07-21 | 2017-07-21 | Reservoir level changes band banks destruction experimental rig and its application method |
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| Publication Number | Publication Date |
|---|---|
| CN107238537A true CN107238537A (en) | 2017-10-10 |
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ID=59988101
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| CN201710599970.1A Withdrawn CN107238537A (en) | 2017-07-21 | 2017-07-21 | Reservoir level changes band banks destruction experimental rig and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007778A (en) * | 2017-12-25 | 2018-05-08 | 三峡大学 | A kind of reservoir dam side slope scene is horizontal to draw experimental rig and method |
| CN108717812A (en) * | 2018-07-17 | 2018-10-30 | 江苏省防汛防旱指挥部办公室 | A kind of emergency flood fighting rehearsal base |
| CN108986579A (en) * | 2018-07-17 | 2018-12-11 | 水利部交通运输部国家能源局南京水利科学研究院 | The test method of crack of soils is induced when a kind of rehearsal for emergency flood fighting |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592424A (en) * | 2013-11-29 | 2014-02-19 | 四川大学 | Physical model test apparatus for confined groundwater in bedding bank slope |
| CN103616493A (en) * | 2013-11-29 | 2014-03-05 | 三峡大学 | Three-dimensional artificial rainfall reservoir type landslide physical model testing equipment |
| CN104751725A (en) * | 2015-04-21 | 2015-07-01 | 河海大学 | Side slope landslide teaching demonstration device and experiment method |
-
2017
- 2017-07-21 CN CN201710599970.1A patent/CN107238537A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592424A (en) * | 2013-11-29 | 2014-02-19 | 四川大学 | Physical model test apparatus for confined groundwater in bedding bank slope |
| CN103616493A (en) * | 2013-11-29 | 2014-03-05 | 三峡大学 | Three-dimensional artificial rainfall reservoir type landslide physical model testing equipment |
| CN104751725A (en) * | 2015-04-21 | 2015-07-01 | 河海大学 | Side slope landslide teaching demonstration device and experiment method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007778A (en) * | 2017-12-25 | 2018-05-08 | 三峡大学 | A kind of reservoir dam side slope scene is horizontal to draw experimental rig and method |
| CN108717812A (en) * | 2018-07-17 | 2018-10-30 | 江苏省防汛防旱指挥部办公室 | A kind of emergency flood fighting rehearsal base |
| CN108986579A (en) * | 2018-07-17 | 2018-12-11 | 水利部交通运输部国家能源局南京水利科学研究院 | The test method of crack of soils is induced when a kind of rehearsal for emergency flood fighting |
| CN108717812B (en) * | 2018-07-17 | 2024-03-01 | 江苏省防汛防旱指挥部办公室 | Flood prevention emergency exercise base |
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Application publication date: 20171010 |