CN203365431U - Experimental facility for simulating side slope rainfall infiltration and analyzing factors influencing stability - Google Patents

Experimental facility for simulating side slope rainfall infiltration and analyzing factors influencing stability Download PDF

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Publication number
CN203365431U
CN203365431U CN 201320479487 CN201320479487U CN203365431U CN 203365431 U CN203365431 U CN 203365431U CN 201320479487 CN201320479487 CN 201320479487 CN 201320479487 U CN201320479487 U CN 201320479487U CN 203365431 U CN203365431 U CN 203365431U
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CN
China
Prior art keywords
slope
water
soil moisture
simulating
rainfall
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CN 201320479487
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Chinese (zh)
Inventor
周军平
刘运来
尹华杰
李玉英
邓通发
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赣州高速公路有限责任公司
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Priority to CN 201320479487 priority Critical patent/CN203365431U/en
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Abstract

The utility model discloses an experimental facility for simulating side slope rainfall infiltration and analyzing factors influencing the stability. The experimental facility comprises a side slope rainfall simulation system, a side slope experiment frame and an experiment detecting system, wherein a water storage tank in the side slope rainfall simulation system is connected with a water pump, a control valve and a return pipe are arranged at an outlet of the water pump, further, the return pipe is connected with the water storage tank, a water supply main pipe is connected with the control valve, a flowmeter is arranged on the water supply main pipe, one end of a water segregator is connected with the water supply main pipe, and the other end of the water segregator is connected with water supply branch pipes which are connected with spray nozzles arranged above the side slope experiment frame; and a soil moisture probe of the experiment detecting system is embedded in the side slope experiment frame and connected with a soil moisture collection instrument through data lines, and the control valve and the soil moisture collection instrument are connected with a computer terminal. According to the experimental facility for simulating the side slope rainfall infiltration and analyzing the factors influencing the stability, the side slope rainfall is simulated, different slopes and types of soil and compacted soil which are placed on the side slope experiment frame are detected, and the factors influencing the side slope stability are analyzed, so that reference data is provided for improving the side slope stability.

Description

A kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor
Technical field
The utility model relates to simulation side slope rainfall infiltration and analyzes the experimental provision field of stability, is specially a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor.
Background technology
Problems of Slope Stability is an important topic of Geotechnical Engineering always, and statistical data shows, the main risk factor that slope instability destroys is rainfall infiltration.In Japan, because causing the side slope of unstable failure to surpass more than 10,000, rainfall even reaches 100,000 every year on average; In the U.S., the loss that unsaturation special soils problem causes surpasses the summation of the lose from natural calamity such as disaster caused by a windstorm, big flood, earthquake, rubble flow, nearly 10,000,000,000 dollars of year loss.In China, the loss that the slope instability caused due to rainfall infiltration causes is also very huge.Problems of Slope Stability under Condition of Rainfall Infiltration has received many scholars' concern, in the Unsaturated slope numerical analysis of rainfall infiltration, rainfall infiltration causes the slope underground water bit line to rise and the side slope superficial water-cut increase, cause thus the increase of pore water pressure or reducing of matric suction, the shearing strength of side slope potential danger slipping plane is constantly reducing, until can not meet the requirement of shearing resistance, thereby destroy the stability of side slope.Therefore, before building side slope, need to carry out simulated rainfall for the side slope of different great soil groups, different solid great soil group type, different gradient, the factor of analyzing influence slope stability, provide reference data for improving slope stability.
The utility model content
The technical matters that the utility model solves is to provide a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor, to solve the shortcoming in the above-mentioned background technology.
The technical matters that the utility model solves realizes by the following technical solutions:
A kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor, comprise simulation side slope rainfall system, side slope test frame and test detection system, wherein, simulation side slope rainfall system comprises reserve tank, water pump, water inlet pipe, operation valve, recirculatory pipe, flowmeter, vibration means for main pipe for supplying water, water trap, water supply is in charge of and nozzle, reserve tank is connected with water pump by water inlet pipe, pump outlet is provided with operation valve and recirculatory pipe, and recirculatory pipe is connected with reserve tank, vibration means for main pipe for supplying water is connected with operation valve, flowmeter is arranged on vibration means for main pipe for supplying water, water trap one end is connected with vibration means for main pipe for supplying water, the other end is in charge of and is connected with water supply, water supply is in charge of with nozzle and is connected, nozzle is arranged on side slope test frame top, side slope test frame one side is provided with soil moisture probe access hole, the test detection system comprises data line, soil moisture Acquisition Instrument, soil moisture probe and computer terminal, soil moisture probe is embedded in side slope and tests in frame by the soil moisture access hole of pop one's head in, and be connected with the soil moisture Acquisition Instrument by data line, operation valve is connected with computer terminal with the soil moisture Acquisition Instrument.
In the utility model, water pump is self prime pump, and water pump is according to required simulated rainfall intensity size Selecting All Parameters type; More even for the rainfall that makes as far as possible simulation, nozzle equidistantly is arranged in arrays, in aqueous dispersion being in charge of to water supply by water trap by vibration means for main pipe for supplying water.
In the utility model, the toe of side slope test frame is provided with feeder, and is provided with the gradient on feeder, and feeder is used for collecting the muddy water that Rainfall simulator erosion gets off, in order to taking the analysis of mud or silt carrying capacity in muddy water, feeder with the gradient in order to water conservancy diversion.
In the utility model, side slope test frame top is set to the side plate of rotatable adjusting height, bottom is fixed head, by adjusting side slope test frame upper side panel and then adjusting the gradient and the height that side slope is tested frame, to meet all kinds of gradients on the simulation test engineering, and can avoid the upper side panel the raised area to keep out rainfall, and cause the overboard unevenness at the inner diverse location of side slope place.
In the utility model, in side slope test frame, a plurality of steel diaphragms are set, in order to carry out the side slope simulating test under different condition simultaneously, for the solid soil of difference or protection form side slope Contrast on effect, different soil-slope Infiltration Law or other different classes of side slope contrasts, effectively reduce the test operation number of times, shorten test period.
In the utility model, before use, test water is injected to reserve tank, constantly moisturizing in process of the test, to guarantee sufficient test water amount, pump outlet is provided with operation valve and recirculatory pipe, nozzle is arranged on side slope test frame top, by operation valve Control Nozzle flow and the work of water pump normal power, water pump is according to required simulated rainfall intensity size Selecting All Parameters type, place different great soil groups in side slope test frame, and the gradient and the height of adjustment side slope test frame upper side panel, place dissimilar solid soil on side slope test frame upper side panel, then by the computer terminal opening controlling valve, current are tested on frame in side slope by nozzles spray, the soil moisture probe detects infiltrating and the soil erosion situation of side slope test frame rainfall, test the different gradient of frame and great soil group and the solid soil of placement by detecting side slope, the factor of analyzing influence slope stability, provide reference data for improving slope stability.
Beneficial effect: the utility model simulation side slope rainfall, simultaneously by adjusting the gradient and the height of side slope test frame, to meet all kinds of gradients on the simulation test engineering, place different great soil groups in side slope test frame, the soil moisture probe detects infiltrating and the soil erosion situation of side slope test frame rainfall; Test the different gradient of frame and great soil group and the solid soil of placement by detecting side slope, the factor of analyzing influence slope stability, provide reference data for improving slope stability.
The accompanying drawing explanation
The structural representation that Fig. 1 is the utility model preferred embodiment.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor of Fig. 1, comprise reserve tank 1, water pump 2, water inlet pipe 3, operation valve 4, recirculatory pipe 5, flowmeter 6, vibration means for main pipe for supplying water 7, supply water be in charge of 8, nozzle 9, side slope test frame 10, data line 11, soil moisture Acquisition Instrument 12, computer terminal 13.
In the present embodiment, reserve tank 1 is connected with water pump 2 by water inlet pipe 3, water pump 2 exits are provided with operation valve 4 and recirculatory pipe 5, and recirculatory pipe 5 is connected with reserve tank 1, and vibration means for main pipe for supplying water 7 is connected with operation valve 4, flowmeter 6 is arranged on vibration means for main pipe for supplying water 7, water trap one end is connected with vibration means for main pipe for supplying water 7, and the other end is in charge of 8 with water supply and is connected, and water supply is in charge of 8 and is connected with nozzle 9, nozzle 9 is arranged on side slope test frame 10 tops, and side slope test frame 10 1 sides are provided with soil moisture probe access hole; Soil moisture probe is embedded in side slope test frame 10 by the soil moisture access hole of pop one's head in, and passes through data line 11 and be connected with soil moisture Acquisition Instrument 12, and operation valve 4 is connected with computer terminal 13 with soil moisture Acquisition Instrument 12.
In the present embodiment, water pump 2 is self prime pump, and water pump 2 is according to required simulated rainfall intensity size Selecting All Parameters type; More even for the rainfall that makes as far as possible simulation, nozzle 9 equidistantly is arranged in arrays, by vibration means for main pipe for supplying water 7, by water trap, aqueous dispersion is in charge of in 8 to water supply.
In the present embodiment, the toe of side slope test frame 10 is provided with feeder, and is provided with the gradient on feeder, and feeder is used for collecting the muddy water that Rainfall simulator erosion gets off, in order to taking the analysis of mud or silt carrying capacity in muddy water, feeder with the gradient in order to water conservancy diversion.
In the present embodiment, side slope test frame 10 tops are set to the side plate of rotatable adjusting height, bottom is fixed head, by adjusting side slope test frame 10 upper side panel and then adjusting the gradient and the height that side slope is tested frame, to meet all kinds of gradients on the simulation test engineering, and can avoid the upper side panel the raised area to keep out rainfall, and cause the overboard unevenness at the inner diverse location of side slope place.
In the present embodiment, side slope test frame 10 is interior arranges a plurality of steel diaphragms, in order to carry out the side slope simulating test under different condition simultaneously, for the solid soil of difference or protection form side slope Contrast on effect, different soil-slope Infiltration Law or other different classes of side slope contrasts, effectively reduce the test operation number of times, shorten test period.
In the present embodiment, specific operation process is as follows: 1, at first adjust rainfall intensity in simulation side slope rainfall system, and check measurement with udometer; 2, prepare the soil for test of required embankment slope test frame 10, utilize drying chamber to be dried with soil test, and filling its average moisture content of before measurement, the soil of guaranteeing to be for experiment reaches the test design water content requirement; 3, layering is to side slope test frame 10 paving soil, by every layer thickness, be that 10 cm are filled out paving, every layer while filling, first be ready to every layer and fill out the native required test of paving with native, to test with soil side slope test frame 10 interior evenly shed and use to fill with hammer ram, evenly tamp, if need in single test, with two kinds of soil for dissimilar test, need separately be processed; 4, after every layering has been banketed, utilize cutting ring average sample in the compacting scope, record the unit weight of compacting soil layer, in strict accordance with design unit weight, spread soil, if do not reach design load, add appropriate soil and continue compacting; 5, after every layer of laying at surperficial hacking, upper and lower two layer soil bodies can be combined closely; 6, mark the position that need bury the soil moisture probe underground on side slope test frame 10 frame walls, fill out while being taped against design attitude when soil, soil moisture is popped one's head in to bury underground and bury; 7, cut slope after just completing into and processed, made that embankment slope is smooth and two grooves are consistent; 8, required the carrying out of test design carried out to reinforcement measure on the solid native slope of protecting, as add anchor or carry out ecological vegetation measure etc.; 9, complete after filling out paving and tested according to predefined rainfall intensity, gather and include water percentage situation of change in slope soil with soil moisture Acquisition Instrument 12, and at side slope test frame 12, positive and side plate both sides are laid two and are recorded video camera, detect in real time the interior wetting front situation of change of slope failure situation and soil; 10, complete the analysis of experiments data, by detecting side slope, test the different gradient of frame 10 and great soil group and the solid soil of placement, the factor of analyzing influence slope stability, provide reference data for improving slope stability.
Above demonstration and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. the analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor, comprise simulation side slope rainfall system, side slope test frame and test detection system, it is characterized in that, simulation side slope rainfall system comprises reserve tank, water pump, water inlet pipe, operation valve, recirculatory pipe, flowmeter, vibration means for main pipe for supplying water, water trap, water supply is in charge of and nozzle, reserve tank is connected with water pump by water inlet pipe, pump outlet is provided with operation valve and recirculatory pipe, and recirculatory pipe is connected with reserve tank, vibration means for main pipe for supplying water is connected with operation valve, flowmeter is arranged on vibration means for main pipe for supplying water, water trap one end is connected with vibration means for main pipe for supplying water, the other end is in charge of and is connected with water supply, water supply is in charge of with nozzle and is connected, nozzle is arranged on side slope test frame top, side slope test frame one side is provided with soil moisture probe access hole, the test detection system comprises data line, soil moisture Acquisition Instrument, soil moisture probe and computer terminal, soil moisture probe is embedded in side slope and tests in frame by the soil moisture access hole of pop one's head in, and be connected with the soil moisture Acquisition Instrument by data line, operation valve is connected with computer terminal with the soil moisture Acquisition Instrument.
2. a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor according to claim 1, is characterized in that, the toe of side slope test frame is provided with feeder, and is provided with the gradient on feeder.
3. a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor according to claim 1, is characterized in that, side slope test frame top is set to the side plate of rotatable adjusting height, and bottom is fixed head.
4. a kind of analysis experimental provision of simulating the side slope rainfall infiltration and affecting stability factor according to claim 1, is characterized in that, in side slope test frame, a plurality of steel diaphragms is set.
CN 201320479487 2013-08-07 2013-08-07 Experimental facility for simulating side slope rainfall infiltration and analyzing factors influencing stability CN203365431U (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103728435A (en) * 2014-01-15 2014-04-16 水利部交通运输部国家能源局南京水利科学研究院 Slope simulation test device and test method under coupling effects of rainfall and underground water
CN103940979A (en) * 2014-04-18 2014-07-23 扬州大学 Analog system for treating road surface runoff pollution at ecological permeable side slope
CN104596736A (en) * 2015-01-16 2015-05-06 北京城市系统工程研究中心 Rainfall water simulation system and method
CN104597220A (en) * 2015-01-07 2015-05-06 沈阳农业大学 Rocker arm upward spraying type rainfall simulator
CN104819925A (en) * 2015-05-14 2015-08-05 湘潭大学 Comprehensive test equipment for observing permeation and settlement of accumulated gravel soil
CN105116111A (en) * 2015-08-24 2015-12-02 广西大学 Device and method for measuring influences of rainfall capacity and matrix suction on side slope
CN105672333A (en) * 2016-03-08 2016-06-15 中国水利水电科学研究院 Ecological protection slope for hydrological experiment monitoring
CN105841922A (en) * 2016-04-06 2016-08-10 北京城市系统工程研究中心 Laboratory drainpipe network simulation system and simulation method
CN106198339A (en) * 2015-05-29 2016-12-07 长沙理工大学 A kind of covering layer slope seepage flow characteristics considering rainfall infiltration and stability model
CN106248910A (en) * 2016-09-27 2016-12-21 西安长庆科技工程有限责任公司 One sweeps spray formula side slope rainfall system
CN106404611A (en) * 2016-04-20 2017-02-15 李新卫 In-situ soil rainfall infiltration measuring system
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
CN109709305A (en) * 2018-12-27 2019-05-03 陕西地建土地工程技术研究院有限责任公司 A kind of hillside fields interflow simulator and the method for simulating interflow
CN110820813A (en) * 2019-10-31 2020-02-21 同济大学 Vegetation slope protection model test device and method under simulated rainfall condition

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103728435A (en) * 2014-01-15 2014-04-16 水利部交通运输部国家能源局南京水利科学研究院 Slope simulation test device and test method under coupling effects of rainfall and underground water
CN103940979A (en) * 2014-04-18 2014-07-23 扬州大学 Analog system for treating road surface runoff pollution at ecological permeable side slope
CN104597220A (en) * 2015-01-07 2015-05-06 沈阳农业大学 Rocker arm upward spraying type rainfall simulator
CN104596736B (en) * 2015-01-16 2017-06-16 北京城市系统工程研究中心 A kind of rainfall flooding simulation system and method
CN104596736A (en) * 2015-01-16 2015-05-06 北京城市系统工程研究中心 Rainfall water simulation system and method
CN104819925A (en) * 2015-05-14 2015-08-05 湘潭大学 Comprehensive test equipment for observing permeation and settlement of accumulated gravel soil
CN106198339A (en) * 2015-05-29 2016-12-07 长沙理工大学 A kind of covering layer slope seepage flow characteristics considering rainfall infiltration and stability model
CN105116111A (en) * 2015-08-24 2015-12-02 广西大学 Device and method for measuring influences of rainfall capacity and matrix suction on side slope
CN105672333A (en) * 2016-03-08 2016-06-15 中国水利水电科学研究院 Ecological protection slope for hydrological experiment monitoring
CN105841922A (en) * 2016-04-06 2016-08-10 北京城市系统工程研究中心 Laboratory drainpipe network simulation system and simulation method
CN106404611A (en) * 2016-04-20 2017-02-15 李新卫 In-situ soil rainfall infiltration measuring system
CN106248910A (en) * 2016-09-27 2016-12-21 西安长庆科技工程有限责任公司 One sweeps spray formula side slope rainfall system
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
CN109709305A (en) * 2018-12-27 2019-05-03 陕西地建土地工程技术研究院有限责任公司 A kind of hillside fields interflow simulator and the method for simulating interflow
CN110820813A (en) * 2019-10-31 2020-02-21 同济大学 Vegetation slope protection model test device and method under simulated rainfall condition

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Granted publication date: 20131225

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