CN206710430U - A kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability - Google Patents
A kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability Download PDFInfo
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- CN206710430U CN206710430U CN201720581262.0U CN201720581262U CN206710430U CN 206710430 U CN206710430 U CN 206710430U CN 201720581262 U CN201720581262 U CN 201720581262U CN 206710430 U CN206710430 U CN 206710430U
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Abstract
The utility model provides a kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability, including artificial rain device, model casing and shake table, storage tank is connected by water inlet pipe with compression pump, compression pump connects electronic control valve, electronic control valve connection traffic table, flowmeter connects vibration means for main pipe for supplying water, vibration means for main pipe for supplying water connects water supply pipe, connection rainfall shower nozzle below water supply pipe, connected between storage tank and electronic control valve by return pipe, model casing is located at the lower section of rainfall shower nozzle, model casing is fixedly connected with shake table, sensor data cable connects sensor data acquisition instrument, sensor data acquisition instrument connects computer terminal.The features such as the utility model can carry out the related experiment under independent earthquake, independent rainfall and earthquake and rainfall coupling, and it has simple structure, repeat and utilize, and experimentation cost is low.
Description
Technical field
It the utility model is related to a kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability.
Background technology
Landslide is a kind of common natural calamity, has the characteristics that to have a very wide distribution, breaks out that frequency is high, harmfulness is big.I
The mountain region area of state is quite wide, accounts for the 2/3 of territory total area, and natural side slope is widely present, and fast with infrastructure
Speed development, large-scale slope project also can be more and more.In recent years, with global warming, heavy showers and abnormal extreme weather
The disasters such as the landslide of induction, mud-rock flow are more and more, caused various countries' geological disaster researcher's extensive concern." China ground
Have recorded in matter disaster database " occur China landslide disaster, its record disaster in, most landslides be by
What rainfall induced.Meanwhile China is also the country that (being located in circum-Pacific seismic belt) is shaken one more, and violent earthquake repeatedly occurs,
Such as Tangshan Earthquake, Yingkou earthquake, the earthquake of Wuding, Yunnan county, Wenchuan earthquake and Lushan earthquake etc., the side caused by earthquake load
Slope unstability and then caused landslide, caused by casualties and property loss it is equally startling.From the above it can be seen that rainfall and earthquake
It is most important two factors of induced landslide.Further investigate condition of raining under, under seismic condition and earthquake and rainfall coupling make
The design and construction of prediction and forecast and slope project of the slope stability rule to landslide under have theory directive significance.
However, because multifactor effect causes the formation on landslide with being a kind of extremely complex natural phenomena, so only leaning on room
Interior conventional centrifugal modeling and scene experiment in situ can not further investigate the failure mode and its instability Mechanism of its side slope.
Have the experiment of close copy case at present, but the surface side wall of model casing three be it is wooden, it is larger in side slope model water content
When, wooden side wall is perishable, not durable, and vertically the two side of seismic wave is wooden, has reflex to seismic wave, is easily formed
Back wave, causes test error, and the experimental rig can only failure under earthquake action, it is impossible to realizes earthquake and rainfall coupling
Under stability of slope Journal of Sex Research.
The content of the invention
In order to solve the above problems, the utility model provides a kind of simulation earthquake and rainfall Upon Slope Stability shadow
Loud experimental rig.
What the purpose of this utility model was realized in：
A kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability, including artificial rain device, mould
Molding box and shake table,
Artificial rain device includes storage tank, compression pump, electronic control valve, flowmeter, return pipe, water inlet pipe, water supply point
Pipe, rainfall shower nozzle and vibration means for main pipe for supplying water, storage tank are connected by water inlet pipe with compression pump, compression pump connection electronic control valve, electronics
Control valve connection traffic table, flowmeter connection vibration means for main pipe for supplying water, vibration means for main pipe for supplying water connection water supply pipe, the connection rainfall of water supply pipe lower section
Shower nozzle, connected between storage tank and electronic control valve by return pipe,
Model casing is located at the lower section of rainfall shower nozzle, and model casing is fixedly connected with shake table, model casing include steel front side wall,
Lucite, steel rear wall, steel left side wall, polystyrene foam plate, steel substrate, angle steel diagonal brace, side slope model are preposition
Baffle plate, steel right side wall, drain valve, drain valve screen pack, gauge hole, wire netting, polystyrene foam plate are respectively adhered on
On steel left side wall and the preposition baffle plate of side slope model, wire netting is welded on steel substrate, and the preposition baffle plate of side slope model is vertically pacified
Loaded between steel front side wall and steel rear wall, if steel front side wall and steel rear wall have corresponding equidistant dry hole
Hole, fixing bolt fix the preposition baffle plate of side slope model through hole, and lucite is installed on above steel rear wall, drain valve
Screen pack is arranged on the side of drain valve, the opposite side of drain valve through polystyrene foam plate, the preposition baffle plate of side slope model and
Steel right side wall, some gauge holes are provided with the preposition baffle plate of side slope model.
Effect and benefit of the present utility model are：The utility model can carry out independent earthquake, independent rainfall and earthquake and
The features such as related experiment under rainfall coupling, it has simple structure, repeats and utilizes, and experimentation cost is low.Pass through the dress
The model test put, the instability Mechanism under side slope earthquake, rainfall and earthquake and rainfall coupling is can reveal that, it is anti-to come down
Calamity mitigation, monitoring and forecast provide theoretical foundation.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Fig. 2 is the structural front view of model casing of the present utility model.
Fig. 3 is the structure top view of model casing of the present utility model.
Fig. 4 is the structural representation of the preposition baffle plate of side slope model of the present utility model.
Embodiment
The utility model is further explained below according to Figure of description citing：
Embodiment 1
With reference to shown in Fig. 1-4, a kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability, including people
Work rainer 1, model casing 2, shake table 3, test monitoring system 4 and computer terminal 5, artificial rain device 1 include storage tank
1-1, compression pump 1-2, electronic control valve 1-3, flowmeter 1-4, return pipe 1-5, water inlet pipe 1-6, water supply pipe 1-7, rainfall spray
Head 1-8 and vibration means for main pipe for supplying water 1-9, storage tank 1-1 is connected by water inlet pipe 1-6 with compression pump 1-2, compression pump 1-2 connection electronics controls
Valve 1-3 processed, electronic control valve 1-3 connection traffic table 1-4, flowmeter 1-4 connection vibration means for main pipe for supplying water 1-9, vibration means for main pipe for supplying water 1-9 connection supply
Connection rainfall shower nozzle 1-8, passes through backwater between storage tank 1-1 and electronic control valve 1-3 below moisture pipe 1-7, water supply pipe 1-7
Pipe 1-5 connections, model casing 2 are located at rainfall shower nozzle 1-8 lower section, and model casing 2 is fixedly connected with shake table 3, and model casing 2 includes steel
Front side wall 2-1 processed, lucite 2-2, steel rear wall 2-3, steel left side wall 2-4, polystyrene foam plate 2-5, steel bottom
Plate 2-6, angle steel diagonal brace 2-7, the preposition baffle plate 2-8 of side slope model, steel right side wall 2-10, drain valve 2-11, drain valve screen pack
2-12, gauge hole 2-13, wire netting 2-14, polystyrene foam plate 2-5 are respectively adhered on steel left side wall 2-4 and side slope mould
On the preposition baffle plate 2-8 of type, wire netting 2-14 is welded on steel substrate 2-6, and the preposition baffle plate 2-8 of side slope model is installed vertically on steel
Between front side wall 2-1 and steel rear wall 2-3 processed, steel front side wall 2-1 and steel rear wall 2-3 have corresponding equidistant
Some hole 2-9, fixing bolt fix the preposition baffle plate 2-8 of side slope model through hole 2-9, and lucite 2-2 is installed on steel
Above rear wall 2-3 processed, drain valve screen pack 2-12 is arranged on drain valve 2-11 side, and drain valve 2-11 opposite side passes through
Set on polystyrene foam plate 2-5, side slope model preposition baffle plate 2-8 and steel right side wall 2-10, the preposition baffle plate 2-8 of side slope model
It is equipped with some gauge hole 2-13.
Embodiment 2
Experimentation using the experimental rig of embodiment 1 is as follows：The monitoring system 4 of use includes sensor data cable 4-
1st, video camera 4-2, sensor data acquisition instrument 4-3, pore water pressure sensor, water content sensor, suction sensor, pressure
Sensor and acceleration transducer, pore water pressure sensor, water content sensor, suction sensor, pressure sensor and add
Velocity sensor is respectively arranged in gauge hole 2-13, and passes through sensor data cable 4-1 and sensor data acquisition instrument 4-3
Connection, sensor data acquisition instrument 4-3 connections computer terminal 5, shake table 3 is connected with computer terminal 5, electronic control valve 1-3 and
Computer terminal 5 is connected, and video camera 4-2 is placed near model casing 2
1. being ready for making the experiment soil of side slope model first, and black ink is used after a part of soil sample is dried
Water dye is black, and soil amount is used according to what the dry density of control and the estimated estimation of placement in layers thickness needed.
2. according to the side slope moulded dimension of experimental design, the preposition baffle plate 2- of side slope model of side slope model is bolted
8 position, then placement in layers side slope, marks the filling-up thickness of each layer and the wheel of grade of side slope in the side wall of model in advance
Profile, one layer has often been filled according to design and has buried good sensor, while the black soil prepared has been sprinkled upon close to lucite 2-2 mono-
Side, carry out digging hair processing to hitting the soil layer surface after reality, then carry out filling for next soil layer, finish until filling, finally press
Slope is cut according to gradient contour line.
3. the side slope surface filled covers plastic cloth, moisture evaporation is prevented, is then made inside slope soil within static one week
Stress state adjustment uniformly, between particle forms cementing.
4. placing video camera 4-2, sensor data acquisition instrument 4-3 and correlation test equipment have been debugged.
5. according to the earthquake operating mode of design, from the input-to-state stabilization shape of computer terminal 5 and relevant parameter, shake table 3 vibrates mould
Intend geological process.The side slope dynamic response of geological process is obtained by acceleration transducer, soil pressure sensor measurement, and led to
Cross video camera 4-2 record side slopes side, the crackle and deformation at domatic place.
6. according to the rainfall operating mode of design, from the size that rainfall intensity is controlled by electronic control valve 1-3 and compression pump 1-2
Carry out rainfall and open drain valve 2-11 to carry out draining.Rainfall is measured by moisture transducer, soil pressure sensor
Shi Bianpo water content, the situation of change of soil pressure, and the crackle by the video camera 4-2 records domatic place in side slope side and change
Shape situation.
This experiment is tracked observation using high-definition digital image processing techniques side slope soil movement, utilizes high definition
While DV 4-2 carries out whole shooting, after earthquake and rainfall, side slope side and the generation of side slope surface are different
The position of reason condition is observed using high-definition digital electron microscope, recorded.Finally, the data collected classify whole
Splitting or integrating analyses to obtain the slope instability mechanism under earthquake and rainfall coupling.
Claims (1)
1. a kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability, including artificial rain device (1), mould
Molding box (2) and shake table (3), it is characterised in that：
Artificial rain device (1) include storage tank (1-1), compression pump (1-2), electronic control valve (1-3), flowmeter (1-4), return
Water pipe (1-5), water inlet pipe (1-6), water supply pipe (1-7), rainfall shower nozzle (1-8) and vibration means for main pipe for supplying water (1-9), storage tank (1-1)
It is connected by water inlet pipe (1-6) with compression pump (1-2), compression pump (1-2) connection electronic control valve (1-3), electronic control valve (1-
3) connection traffic table (1-4), flowmeter (1-4) connection vibration means for main pipe for supplying water (1-9), vibration means for main pipe for supplying water (1-9) connection water supply pipe (1-
7), connection rainfall shower nozzle (1-8) below water supply pipe (1-7), by returning between storage tank (1-1) and electronic control valve (1-3)
Water pipe (1-5) connects,
Model casing (2) is located at the lower section of rainfall shower nozzle (1-8), and model casing (2) is fixedly connected with shake table (3), model casing (2) bag
Include steel front side wall (2-1), lucite (2-2), steel rear wall (2-3), steel left side wall (2-4), polystyrene foam
Plate (2-5), steel substrate (2-6), angle steel diagonal brace (2-7), the preposition baffle plate of side slope model (2-8), steel right side wall (2-10), let out
Water valve (2-11), drain valve screen pack (2-12), gauge hole (2-13), wire netting (2-14), polystyrene foam plate (2-5)
It is respectively adhered on steel left side wall (2-4) and the preposition baffle plate of side slope model (2-8), wire netting (2-14) is welded on steel substrate
On (2-6), the preposition baffle plate of side slope model (2-8) is installed vertically between steel front side wall (2-1) and steel rear wall (2-3),
Steel front side wall (2-1) and steel rear wall (2-3) have corresponding equidistant some holes (2-9), and fixing bolt passes through
Hole (2-9) makes the preposition baffle plate of side slope model (2-8) fixed, and lucite (2-2) is installed on above steel rear wall (2-3),
Drain valve screen pack (2-12) is arranged on the side of drain valve (2-11), and the opposite side of drain valve (2-11) steeps through polystyrene
Foam plate (2-5), the preposition baffle plate of side slope model (2-8) and steel right side wall (2-10), set on the preposition baffle plate of side slope model (2-8)
There are some gauge holes (2-13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720581262.0U CN206710430U (en) | 2017-05-24 | 2017-05-24 | A kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720581262.0U CN206710430U (en) | 2017-05-24 | 2017-05-24 | A kind of experimental rig for simulating earthquake and the influence of rainfall Upon Slope Stability |
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| CN206710430U true CN206710430U (en) | 2017-12-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144682A (en) * | 2017-05-24 | 2017-09-08 | 黑龙江科技大学 | Simulate the experimental rig and method of earthquake and the influence of rainfall Upon Slope Stability |
| CN108333036A (en) * | 2017-12-29 | 2018-07-27 | 浙江科技学院 | Highly dense area's cross-over tunnel operation causes the bath scaled model experimental device of ground long-term settlement |
| CN108593878A (en) * | 2018-03-09 | 2018-09-28 | 广州地理研究所 | A kind of original position water loss and soil erosion laboratory |
| CN110133212A (en) * | 2019-04-26 | 2019-08-16 | 河海大学 | A kind of artificial rain system for the test of indoor side slope |
-
2017
- 2017-05-24 CN CN201720581262.0U patent/CN206710430U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107144682A (en) * | 2017-05-24 | 2017-09-08 | 黑龙江科技大学 | Simulate the experimental rig and method of earthquake and the influence of rainfall Upon Slope Stability |
| CN108333036A (en) * | 2017-12-29 | 2018-07-27 | 浙江科技学院 | Highly dense area's cross-over tunnel operation causes the bath scaled model experimental device of ground long-term settlement |
| CN108333036B (en) * | 2017-12-29 | 2020-10-30 | 浙江科技学院 | Model experiment device for causing ground long-term settlement in high-concentration area overlapping tunnel operation |
| CN108593878A (en) * | 2018-03-09 | 2018-09-28 | 广州地理研究所 | A kind of original position water loss and soil erosion laboratory |
| CN110133212A (en) * | 2019-04-26 | 2019-08-16 | 河海大学 | A kind of artificial rain system for the test of indoor side slope |
| CN110133212B (en) * | 2019-04-26 | 2022-02-11 | 河海大学 | Artificial rainfall system for indoor slope test |
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