CN207571131U - A kind of simulator that Gu Gou is examined to protect plateau engineering measure effect - Google Patents
A kind of simulator that Gu Gou is examined to protect plateau engineering measure effect Download PDFInfo
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- CN207571131U CN207571131U CN201721806415.3U CN201721806415U CN207571131U CN 207571131 U CN207571131 U CN 207571131U CN 201721806415 U CN201721806415 U CN 201721806415U CN 207571131 U CN207571131 U CN 207571131U
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Abstract
A kind of simulator that Gu Gou is examined to protect plateau engineering measure effect, slope panel including being used to place loess erosion ditch model, slope panel is mounted on folding rack, folding rack is made of slope panel mounting bracket, base support, adjusting screw rod, one end of slope panel mounting bracket and base support is hinged, installation and adjustment screw rod between slope panel mounting bracket and the other end of base support, slope panel mounting bracket can be up and down along adjusting screw rod by nipple；Artificial rain device is provided with above the loess erosion ditch model, the bottom end of slope panel is disposed with silt collecting box；Sensor is provided in the plate face of slope panel and for the data line by the data transmission that sensor detects to external sensor data collector.The utility model protects the comparison of plateau engineering measure and no engineering measure by being implemented with Gu Gou at the scene, realizes the quantitative analysis of engineering actual effect.
Description
Technical field
The utility model belongs to geological disaster prevention and control field, specially a kind of mould that Gu Gou is examined to protect plateau engineering measure effect
Intend device.
Background technology
Tradition is related to the physical simulating device that rainfall induces geological disaster, such as mud-rock flow physical simulating device, generally all makes
It is more heavy with metal structure stent, it is not easy to move, simulation test can only be carried out in test site indoors.And in engineering reality
In border, most of position occurs for geological disaster in more remote area, and required simulation medium needs in-situ sampling band mostly
Indoor carry out physical analogy is returned, needs to expend a large amount of manpower and material resources, and can also change the physics and chemistry of medium in transportational process
Shape influences simulation test effect.In addition in simulation laboratory test, the similitude of field landform and the similitude of material resource are difficult to obtain
Meet.Therefore needing to develop a kind of can be convenient for carrying and simulate the novel field physical simulation experiment device to work well and side
Method carries out physical simulation experiment, and the comparison of plateau engineering construction effect and anti-is protected for retrogressive erosion process and Gu Gou to realize
Feedback.
Currently used Gu Gou, which protects plateau engineering measure, mainly to be had the backfill of ditch head, silt arrester, transforming slope into terrace, builds cistern etc.,
Though these engineering measures have more practical engineering experience, how implementation result also lacks the physics in situ of a set of maturation at present
Analogy method, therefore also just it is difficult to the carry out qualitative assessment to engineering actual effect and analysis.
Utility model content
The problems in the purpose of this utility model is that for the above-mentioned prior art, a kind of inspection Gu Gou is provided and protects plateau engineering
The simulator of measure effect, the simulator is lightly portable, can carry out simulation test at the scene, with surrounding enviroment similarity degree
It is high.
To achieve these goals, the technical solution adopted in the utility model is：Including being used to place loess erosion ditch mould
The slope panel of type, slope panel are mounted on folding rack, and folding rack is by slope panel mounting bracket, base support, adjusting screw rod
One end of composition, slope panel mounting bracket and base support is hinged, between slope panel mounting bracket and the other end of base support
Installation and adjustment screw rod, slope panel mounting bracket can be up and down along adjusting screw rod by nipple；The loess erosion ditch
Artificial rain device is provided with above model, the bottom end of slope panel is disposed with silt collecting box；It is set in the plate face of slope panel
It is equipped with sensor and for the data line by the data transmission that sensor detects to external sensor data collector.Slope surface
Continuously open up fluted in the plate face of plate, groove joining place forms to increase the fricting strip of loess erosion ditch model adhesive force
Line.
Baffle is provided on the slope panel of the loess erosion ditch model both sides.
The slope panel external connection rain trap of the loess erosion ditch model top and bottom both sides.
The middle part of the slope panel mounting bracket and base support is machined with respectively at respective folding.Artificial rain device
It is equipped with including the shower being connect by water pipe with water feeding tank, in water feeding tank for the suction pump of water pipe water delivery.
The utility model Gu Gou protects the analogy method of plateau engineering measure simulator, includes the following steps：First, two sets are taken
Simulator makes loess erosion ditch model on slope panel respectively, wherein a set of model engineering measure, another set of do not use is appointed
What engineering measure simultaneously calculates plateau area and raceway groove parameter as control, the dimensional parameters of record cast；Then, pacified by slope panel
Fill the inclination angle that stent adjusts slope panel；Finally, it is equal to two sets of loess erosion ditch models by artificial rain device simultaneous quantitative
Even rainfall, observation raceway groove wash away situation, and sensing data is read by sensor data acquisition device, compare plateau area and raceway groove ginseng
Several variations.
The specific method for simulating gradient optimiziation measure is as follows：
The Huang of high h=300mm, width b=1000mm, long l=150mm are accumulated on the slope panel of two sets of simulators first
Native erosion groove shape, raceway groove is placed in the middle, divides loess tableland, and base slope face angle, θ is 15 °, and ditch length is initially set to L=1000mm, plateau face
Product is S=bl-0.5lL=1.2m, and ditch tail depth degree is H=50tan θ=134mm, and 5 points are equidistantly monitored on raceway groove, are denoted as
a、b、c、d、e；It measures each point channel depth and soil humidity sensor is buried in raceway groove；Then in simulation gradient optimiziation
Terraced fields are built in the slope surface of measure, vertical equidistantly 20mm builds one of terraced fields, and terrace width b=2/tan θ=74.6mm are rammed
The real raised path through fields has simultaneously built the drainage channel between terraced fields, and any engineering measure is not built in the another set of effect compared；Finally use
Artificial rain device carries out rain making to two sets of simulators simultaneously, and interval same time is recorded on two testing stands under raceway groove
Cutting depth, ditch bed wash away width and ditch head advance situation, when avalanche sliding occurring in plateau area when apparent physical change, observe ditch
Road washes away situation, records rainfall in the period graduated cylinder, channel depth, width, ditch head advance length, plateau face area, reads soil
Earth humidity data；According to the change of loess tableland physical aspect under the data of record and condition of raining, base slope face angle is obtained
When degree θ is 15 °, in the case of having gradient optimiziation measure and no engineering measure, the variation of plateau face area and the advance of ditch head
Length, raceway groove wash away changed condition；Under conditions of when base slope face angle, θ is 15 °, two sets of simulators of comparison are collected into
Ditch head retrogressive erosion amount data realize the comparative analysis for whetheing there is gradient optimiziation measure effect；Change base slope face angle, θ, then with
25 °, 35 °, 45 ° are tested, and are tested respectively under different slope angles, have gradient optimiziation measure and without in the case of the engineering measure
The variation of plateau face area and the advance length of ditch head, raceway groove wash away changed condition, and record data carry out Comparative and Quantitative Analysis.
The method for simulating the landfill engineering measure of ditch head is as follows：
Accumulated on two sets of simulator bottom plates first high h=300mm, width b=1000mm, long l=150mm loess invade
Etched groove shape, raceway groove is placed in the middle, divides loess tableland, and base slope face angle, θ is 15 °, and ditch length is initially set to L=1000mm, and plateau area is S
=bl-0.5lL=1m2, ditch tail depth degree be H=50tan θ=134mm, 5 points are equidistantly monitored on raceway groove, be denoted as a, b, c,
d、e；Each point channel depth is measured, soil humidity sensor is buried in raceway groove；Then in simulation ditch head stemming operation measure
The ditch head backfill soil body, by the control of ditch length in 900mm, after drainage pipeline is laid with, whole backfill is carried out, in backfill
Compaction in layers should be used, backfill face forms 30 °~40 ° of slope surface, prevents slopes voluntarily avalanche；Finally use artificial rain device
Rain making is carried out to two sets of simulators simultaneously, interval same time records dinting depth, the ditch bed of raceway groove on two testing stands
Width and ditch head advance situation are washed away, when apparent physical change occurs in plateau area, observation raceway groove washes away situation, records the period
Rainfall, channel depth, width, ditch head advance length, plateau face area in graduated cylinder read soil humidity sensor data；According to
The change of loess tableland physical aspect under the data and condition of raining of record, obtain base slope face angle, θ for 15 ° when, have ditch head backfill
Engineering measure and without in the case of the engineering measure, the advance length of ditch head, raceway groove wash away the physical aspects changes such as situation；
Under the conditions of slope surface angle, θ is 15 °, the ditch head retrogressive erosion amount data that two sets of simulators are collected into are compared, realization whether there is ditch head
The comparative analysis of stemming operation measure effect；Change base slope face angle, θ, then tested with 25 °, 35 °, 45 °, tested respectively not
In the case of under slope angle, having gradient optimiziation measure and no engineering measure, the variation of plateau face area and the advance of ditch head
Length, raceway groove wash away changed condition, and record data carry out Comparative and Quantitative Analysis.
The analogy method of the utility model silt arrester, build cistern engineering measure simulation in application.
Compared with prior art, the utility model has following advantageous effect：By have Gu Gou protect plateau engineering measure with
Comparison without engineering measure realizes the feedback effects analysis after engineering measure implementation, then by between various engineering measures
Comparison obtains an optimum Gu Gou and protects plateau engineering measure scheme.The utility model replaces tradition by using folding rack
The steel structure support of device Large heavy increases the flexibility of simulator, easy to carry.The utility model will sample in the past
It takes back laboratory test and becomes field in situ test, this also just solves the reality for wasting a large amount of manpower and materials, also, by
Then simulation test is carried out at the scene, can be ensured that physical model experiment reaches maximum fitting with surrounding enviroment, be improved
The accuracy of simulation test increases the reliability of data.The utility model protects the simulation of plateau engineering measure for Gu Gou
It provides the foundation, realizes the quantitative analysis of engineering actual effect, in terms of having filled up Gu Gou guarantor's plateau engineering measure analogue techniques
Blank.
Description of the drawings
The assembling structure schematic diagram of Fig. 1 the utility model simulators；
The front view of Fig. 2 the utility model simulator structures；
The vertical view of Fig. 3 the utility model slope surface harden structures；
Loess erosion ditch model schematics of the Fig. 4 without engineering measure；
Fig. 5 simulates gradient optimiziation measure schematic diagram；
Fig. 6 simulates ditch head stemming operation measure schematic diagram.
In attached drawing：1- silt collecting boxs；2- loess erosion ditch models；2-1. slope surface；2-2. plateaus face；2-3. ditch heads；2-4.
The raised path through fields；2-5. fields face；2-6. ditch head backfills；3- artificial rain devices；4- suction pumps；5- water feeding tanks；6- simulators；6-1.
At folding；6-2. rain trap；6-3. friction stripeds；6-4. sensor data acquisition devices；6-5. data line；7- folding racks；7-
1. slope panel mounting bracket；7-2. base support；7-3. adjusting screw rod.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings.
The basic principle of erosion：In its natural state, slope surface dead weight M generates two component, i.e., the direct stress σ of vertical slope surface
With the component F=Msin θ along line of slope (wherein θ is raceway groove base slope face angle degree).
Soil shear strength(wherein C is cohesion of soil,For soil body internal friction angle).
Work as F>τ0When, soil shear strength can not resist downslide component, and slope surface is caved in sliding；
As F=τ0When, the soil body is in critical condition；
Work as F<τ0When, downslide component is not enough to cause slip, slope stability.
Since loess seepage of water is smaller, gradually full water, lower floor's soil body are unsaturated for the precipitation event Caused by Sloping Surfaces surface layer soil body.
With loess gap gradually satisfy water, soil body internal friction angleIt reduces, makes with the increase of water content with cohesive force C
Soil body coefficient of internal frictionBecome smaller, internal frictionIt reduces.
Therefore under precipitation event, flow is constantly washed away, the increase of raceway groove base slope face angle, θ, downslide component F=Msin θ
Increase.It moves in circles down, the intensification of ditch bed broadens, and plateau face width successively decreases, and ditch head gradually upstream advances.
Referring to Fig. 1-3, the utility model Gu Gou protects plateau engineering measure simulator, loess erosion ditch mould is placed including being used for
The slope panel of type 2, continuously opens up in the plate face of slope panel fluted, and groove joining place forms to increase loess erosion ditch model
The friction striped 6-3 of 2 adhesive force is provided with baffle 8 on the slope panel of 2 both sides of loess erosion ditch model.Loess erosion ditch model 2
The slope panel external connection rain trap 6-2 of top and bottom both sides.Slope panel is mounted on folding rack 7, and folding rack 7 is by slope
Panel mounting bracket 7-1, base support 7-2, adjusting screw rod 7-3 compositions, slope panel mounting bracket 7-1 and base support 7-2's
One end is hinged, installation and adjustment screw rod 7-3 between the other end of slope panel mounting bracket 7-1 and base support 7-2, slope panel installation
Stent 7-1 can be up and down along adjusting screw rod 7-3 by nipple.Slope panel mounting bracket 7-1 and base support 7-2's
Middle part is machined with 6-1 at respective folding respectively.The top of loess erosion ditch model 2 is provided with artificial rain device 3, slope panel
Bottom end be disposed with silt collecting box 1, artificial rain device 3 includes the shower being connect by water pipe with water feeding tank 5, water feeding tank 5
It is interior to be equipped with for the suction pump 4 of water pipe water delivery.Sensor is provided in the plate face of slope panel and for sensor to be examined
The data transmission measured to external sensor data collector 6-4 data line 6-5.
Referring to Fig. 4, Fig. 5, the utility model simulation gradient optimiziation measure, engineering purpose is retains slope flow, reduction
Slope wash；Increase milliosmolarity under precipitation, reduce raceway groove runoff, reduce current scour erosion groove bed, specifically include following steps：
(1) simulator is unfolded in the wild, fixes stent.
Scene gets out material requested (the experiment soil body, rainer etc.) by test requirements document.
(2) it is stacked on two sets of simulator bottom plates into approximate intact loess retrogressive erosion ditch head shapes with the original state soil body,
A set of simulation gradient optimiziation measure, it is another set of to be used as control without using any engineering measure.
1. high h=300mm, wide b=1000mm, the loess erosion of long l=150mm are accumulated on two sets of simulator bottom plates
Ditch shape, raceway groove is placed in the middle, divides loess tableland, and base slope face angle, θ is 15 °, and ditch length is initially all set to L=1000mm, calculates plateau face
Area is S=bl-0.5lL=1m2, ditch tail depth degree is H=50tan θ=134mm.5 points are equidistantly monitored on raceway groove, are remembered
For a, b, c, d, e.Go out each point channel depth, and soil humidity sensor is buried in raceway groove with tape measure；
2. building terraced fields in the slope surface of simulation gradient optimiziation measure, vertical equidistantly 20mm builds one of terraced fields, ladder
Field width b=2/tan θ=74.6mm.The raised path through fields is tamped, the raised path through fields is made to combine closely with field face, the raised path through fields collapses during preventing experiment.
The drainage channel between terraced fields is built.The another set of effect compared, does not build any engineering measure.
(3) rain making, interval same time record two are carried out to two sets of simulators simultaneously using artificial rain device
The dinting depth of raceway groove and ditch bed wash away width and ditch head advance situation on testing stand.
1. surrounding uniformly respectively installs the graduated cylinder that catchments in trial zone, manually rainer gives trial zone uniform rainfall；
Avalanche sliding occurs for ②Yuan areas when apparent physical change, and observation raceway groove washes away situation, records the period graduated cylinder
Interior rainfall, channel depth, width, ditch head advance length, plateau face area.Read soil humidity sensor data；
3. according to the change of loess tableland physical aspect under the data of record and condition of raining, it is 15 ° that can obtain base slope face angle, θ
When, in the case of having gradient optimiziation measure and no engineering measure, the variation of plateau face area and the advance length of ditch head, raceway groove
Wash away the physical aspects changes such as situation；
4. under conditions of when base slope face angle, θ is 15 °, compare the ditch head retrogressive erosion amount that two sets of simulators are collected into
Data are, it can be achieved that whether there is the comparative analysis of gradient optimiziation measure effect.
(4) change base slope face angle, θ, by being tested again with 25 °, 35 °, 45 ° respectively the step of (2), (3), try respectively
It tests under different slope angles, has gradient optimiziation measure and without the variation of plateau face area in the case of the engineering measure and the advance of ditch head
Length, raceway groove wash away the physical aspects changes such as situation.
(5) simulator bottom plate angle a is adjusted, raceway groove current scour intensity can be changed, the ditch of different gradients can be simulated
Flow washes away situation to raceway groove in bed.Carry out the preparation before rainfall by (2) step, respectively with 15 °, 25 °, 35 °, 45 ° into
Row experiment, record data carry out Comparative and Quantitative Analysis.
Referring to Fig. 4, Fig. 6, the engineering purpose of the utility model simulation ditch head landfill engineering measure slows down plateau to reinforce ditch head
Face erosive velocity prevents ditch head and advances, ground is protected by gully cutting damage, not specifically include following steps：
(1) simulator is unfolded in the wild, fixes stent.
Scene gets out material requested (the experiment soil body, rainer etc.) by test requirements document.
(2) it is stacked on two sets of simulator bottom plates into approximate intact loess retrogressive erosion ditch head shapes with the original state soil body,
A set of simulation ditch head stemming operation measure, it is another set of to be used as control without using any engineering measure.
1. the loess erosion of high h=300mm, width b=1000mm, long l=150mm are accumulated on two sets of simulator bottom plates
Ditch shape, raceway groove is placed in the middle, divides loess tableland, and base slope face angle, θ is 15 °, and ditch length is initially all set to L=1000mm, calculates plateau face
Area is S=bl-0.5lL=1m2, ditch tail depth degree is H=50tan θ=134mm.5 points are equidistantly monitored on raceway groove, are remembered
For a, b, c, d, e.Go out each point channel depth with tape measure, soil humidity sensor is buried in raceway groove；
2. the soil body is backfilled in the ditch head of simulation ditch head stemming operation measure, by the control of ditch length in 900mm, by drainage pipeline
After laying, whole backfill is carried out.Compaction in layers should be used in backfill.Its backfill face will form 30~40 ° of slope surface, prevent
Only slopes voluntarily avalanche.
(3) rain making, interval same time record two are carried out to two sets of simulators simultaneously using artificial rain device
The dinting depth of raceway groove and ditch bed wash away width and ditch head advance situation on testing stand.
1. surrounding uniformly respectively installs the graduated cylinder that catchments in trial zone, manually rainer gives trial zone uniform rainfall；
Avalanche sliding occurs for ②Yuan areas when apparent physical change, and observation raceway groove washes away situation, records the period graduated cylinder
Interior rainfall, channel depth, width, ditch head advance length, plateau face area.Read soil humidity sensor data；
3. according to the change of loess tableland physical aspect under record data and condition of raining, it is 15 ° that can obtain base slope face angle, θ
When, there is ditch head stemming operation measure and without in the case of the engineering measure, ditch head advance length, raceway groove wash away the physics such as situation
Metamorphosis；
4. under the conditions of slope surface angle, θ is 15 °, the ditch head retrogressive erosion amount data that two sets of simulators are collected into are compared,
It can be achieved to whether there is the comparative analysis of ditch head stemming operation measure effect.
(4) change base slope face angle, θ, by being tested again with 25 °, 35 °, 45 ° respectively the step of (2), (3), try respectively
It tests under different slope angles, has gradient optimiziation measure and without the variation of plateau face area in the case of the engineering measure and the advance of ditch head
Length, raceway groove wash away the physical aspects changes such as situation.
(5) simulator bottom plate angle a is adjusted, raceway groove current scour intensity can be changed, the ditch of different gradients can be simulated
Flow washes away situation to raceway groove in bed.Carry out the preparation before rainfall by (2) step, respectively with 15 °, 25 °, 35 °, 45 ° into
Row experiment, record data carry out Comparative and Quantitative Analysis.
In an identical manner can to silt arrester, build the engineering measures such as cistern simulation.
Claims (6)
1. a kind of simulator that Gu Gou is examined to protect plateau engineering measure effect, it is characterised in that：Including being used to place loess erosion
The slope panel of ditch model (2), slope panel be mounted on folding rack (7) on, folding rack (7) by slope panel mounting bracket (7-1),
Base support (7-2), adjusting screw rod (7-3) composition, slope panel mounting bracket (7-1) and one end of base support (7-2) are hinged,
Installation and adjustment screw rod (7-3) between the other end of slope panel mounting bracket (7-1) and base support (7-2), slope panel installation branch
Frame (7-1) can be up and down along adjusting screw rod (7-3) by nipple；It is provided with above loess erosion ditch model (2)
Artificial rain device (3), the bottom end of slope panel are disposed with silt collecting box (1)；Sensor is provided in the plate face of slope panel
And for by the data line (6-5) of the data transmission that sensor detects to external sensor data collector (6-4).
2. Gu Gou is examined to protect the simulator of plateau engineering measure effect according to claim 1, it is characterised in that：Slope panel
Groove is continuously opened up in plate face, groove joining place forms the friction striped (6- for increasing loess erosion ditch model (2) adhesive force
3)。
3. Gu Gou is examined to protect the simulator of plateau engineering measure effect according to claim 1, it is characterised in that：The loess
Baffle (8) is provided on the slope panel of erosion groove model (2) both sides.
4. Gu Gou is examined to protect the simulator of plateau engineering measure effect according to claim 1, it is characterised in that：The loess
The slope panel external connection rain trap (6-2) of erosion groove model (2) top and bottom both sides.
5. Gu Gou is examined to protect the simulator of plateau engineering measure effect according to claim 1, it is characterised in that：The slope surface
Plate mounting bracket (7-1) and the middle part of base support (7-2) are machined at respective folding (6-1) respectively.
6. Gu Gou is examined to protect the simulator of plateau engineering measure effect according to claim 1, it is characterised in that：Rain making
Device (3) includes the shower being connect through water pipe with water feeding tank (5), the interior suction pump (4) being equipped with to water pipe water delivery of water feeding tank (5).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152475A (en) * | 2017-12-21 | 2018-06-12 | 长安大学 | A kind of Gu Gou protects plateau engineering measure simulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108152475A (en) * | 2017-12-21 | 2018-06-12 | 长安大学 | A kind of Gu Gou protects plateau engineering measure simulator |
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Granted publication date: 20180703 Termination date: 20191221 |