CN105738275B - The measuring device and method of soil-slope corrosion resistance in the case where corroding peeling conditions - Google Patents
The measuring device and method of soil-slope corrosion resistance in the case where corroding peeling conditions Download PDFInfo
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Abstract
The invention belongs to field of civil engineering, are related to the measuring device and method of a kind of soil-slope corrosion resistance in the case where corroding peeling conditions；Measuring device includes that alternating temperature gets wet case and is arranged at alternating temperature and gets wet interior cylindrical support frame inside case, outer cylindrical brace frame, band mesh metal grid, metal check board and balance；Band mesh metal grid is provided at the top of interior cylindrical support frame；Metal check board is provided at the top of outer cylindrical brace frame；Outer cylindrical brace frame covers in the outside of balance；Interior cylindrical support frame passes through metal check board and is placed on balance；The sum of height of interior cylindrical support frame and balance is greater than the height of outer cylindrical brace frame；Side slope surface soil sample to be measured is placed on band mesh metal grid.The present invention can efficiently use laboratory equipment evaluation soil-slope slope surface corrosion resistance and can reduce the workload and expense of light field test.
Description
Technical field
The invention belongs to field of civil engineering, are related to the measuring device and method of a kind of soil-slope corrosion resistance, especially
It is related to the measuring device and method of a kind of soil-slope corrosion resistance in the case where corroding peeling conditions.
Background technique
As the construction material of slope project, road engineering and dyke building etc., the soil body is directly exposed to atmospheric environment
In.Soil's water content is influenced by environmental change, precipitation, water level alternating etc., and slope table layer soil body is also easy to produce erosion and peels off and wash away
Etc. diseases so that rupture and peel off so that reduce engineering stability.Different from rock side slope, soil-slope is most universal at present
Disease be slope surface problem, along with extensive civil engineering construction, caused by being reduced by soil-slope slope surface etch resistant properties
Slope disaster, localized landslip and whole landslide are more and more, and economic loss is caused to seriously endanger people's life safety.Soil-slope
The usual depth of slope surface disease is only limitted in climatic effect band (about 1.5-2m), as etch resistant properties it is insufficient caused by disease according to
The difference of natural conditions can be divided into erosion and peel off and wash away two kinds, and formation mechenism has certain difference.
Any position for coming across side slope, generally sheet, flakey and bed separation, Crack cause are peeled off in the erosion caused by sloping surfaces
Including slope surface moisture humidity variation (especially to tailo generate dry and cracked peeling performance it is more prominent), slope foot tension and compression stress and
Weathering drying shrinkage etc., the soil that usual silt content is more, soluble salt content is high are easy to produce erosion and peel off.Slope surface soil layer easy-weathering peels off
Slope Stability is unfavorable, especially paleosol layer it is thicker and be located at slope foot when it is more unfavorable；Slope surface pull out type fracture is removed in slope foot shape
Dished counter-slope landform has certain influence to slope stability, if be not added to protect rainwater infiltration of leaving, meeting side slope is long-term
Stability causes tremendous influence；Slope surface peels off Rock And Soil and blocks gutter, influences whole drainage performance.
Slope wash refers to that rainfall and slope table water flow destroy the slope surface surface layer soil body and cause coombe, slip phenomena such as collapsing.Soil property side
Intensity is higher when the engineering characteristic on slope is dry, and structure is destroyed after immersion, and cohesive strength is reduced rapidly, and amplitude of variation is big, facile hydrolysis
It peels off.Slope wash can cause a large amount of soil erosion, soil-slope slope wash and soil layer, soil nature, geographic and geomorphic conditions, water
Literary condition etc. has close relationship.When rain time is concentrated or is occurred in the form of heavy rain, soil-slope is easily by rainwater and ground
The destruction of table water；When side slope is built using stepped form, erosion damage is also easily caused when drainage sunk well is unreasonable；After rainfall,
The scattered small runoff of slope surface is washed into many fine and closely woven ditches, the gradient is steeper and unvegetated slope surface on rill erosion development；When
Intermittent overland flow concentrates water eroding and flooding, gradually forms shallow gully erosion and destroys slope surface and platform.
Soil-slope erosion-resisting characteristics is not a simple physically or chemically index, but a comprehensive sex factor.
Therefore, quantitative measurment soil-slope corrosion resistance is not easily accomplished.There has been no evaluation soil property sides in existing all kinds of specifications
The test method of slope corrosion resistance, the only measurement of native slaking test and side slope rain test energy part and reflection soil-slope
Corrosion resistance, can not reflect the corrosion resistance of soil-slope completely, it is special to be only capable of reflecting that full water (washes away) under state this
Situation, by the measurement a certain parameter of slope surface soil property as soil-slope slope surface corrosion resistance index.
The basic principle of the slaking test of soil is to measure the variation of volume in soil body disintegrating procedue, i.e., during the test will
Soil sample is put into the center of the web plate in humidifying instrument, immerses in water drum rapidly, starts stopwatch, scale at the neat water surface of floating drum when survey note starts
Moment stablize reading, then surveyed according still further to different time intervals note the floating drum water surface reading, calculate disintegration amount and disintegration
Speed.Since the changed measurement application condition of volume during the test is big, and need to be by immediate reading is visually observed, artificially
Factor is relatively more, and calculated result is very inaccurate, since reading time interval is big, can not carry out to the Scouring Characteristic of soil-slope pre-
It surveys.
Side slope rain test is one kind of field test, carries out rain making by field engineering test section and washes away examination
It tests, obtains different slope erosion destructive process and its anti-impact brushing effects.Ordinary test needs to measure 4 contents：(1) measure
Rainfall is forward and backward and change of moisture content of slope soil in the process；(2) measurement forms the time of rainwash；(3) measure when different
The clay content of section water sample；(4) formation and the Evolution of slope erosion ditch are observed.Rainfall simulator generally uses and faces upward spray formula mould
Quasi- rain-dropping machine.The height of rainfall spray head can be adjusted freely according to the actual situation, and performance similar to natural rainfall reaches 80%.It is existing
Field rain test can more actually complete the case study of washing away of side slope, but rainstorm mechanism and rainfall size form and natural drop
Rain has certain difference, cannot right-on reflection practical problem, and test complicated cumbersome costly.
Summary of the invention
The present invention is directed to above-mentioned difficulty of the existing technology, and laboratory equipment evaluation soil can be efficiently used by providing one kind
The soil-slope of matter side slope surface corrosion resistance and the workload and expense that can reduce light field test is corroding peeling conditions
The measuring device and method of lower corrosion resistance.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of measuring device of soil-slope corrosion resistance in the case where corroding peeling conditions, it is characterised in that：The soil property side
Slope measuring device of corrosion resistance in the case where corroding peeling conditions includes interior cylindrical support frame, outer cylindrical brace frame, band
Mesh metal grid, metal check board, balance and alternating temperature get wet case；It is provided at the top of the interior cylindrical support frame
Band mesh metal grid；Metal check board is provided at the top of the outer cylindrical brace frame；The external cylindrical branch
Support covers in the outside of balance；The interior cylindrical support frame passes through metal check board and is placed on balance；The inner circular
The sum of height of pillar support frame and balance is greater than the height of outer cylindrical brace frame；The interior cylindrical support frame,
Outer cylindrical brace frame, band mesh metal grid, metal check board and balance are arranged at alternating temperature and get wet in case；It is to be measured
The side slope surface soil sample of amount is placed on band mesh metal grid.
Preferably, the sum of height of interior cylindrical support frame of the present invention and balance is at least more than outside
The height 5cm of cylindrical support frame.
Preferably, balance of the present invention is separate type weighing device；The balance includes weighing platform, data
Connecting line and automatic collection recorder；The interior cylindrical support frame is flat across the weighing that metal check board is placed on balance
On platform；The automatic collection recorder is placed in alternating temperature and gets wet outside case；The weighing platform passes through data connecting line and adopts automatically
Collect recorder to be connected.
Preferably, the floor space of interior cylindrical support frame of the present invention is less than the face of the weighing platform of balance
Product；The floor space of the outer cylindrical brace frame gets wet the land occupation face of the space in case in alternating temperature much larger than the weighing platform of balance
Product.
Preferably, the area of metal check board of the present invention is much larger than the area with mesh metal grid.
Preferably, the area of the present invention with the single mesh in mesh metal grid is not less than 1cm2,
The band mesh metal grid is that section is that circular metal steel wire is welded.
Preferably, the range of balance of the present invention is 1-10kg；The precision of the balance is 0.01g；It is described
The time that automatically records of automatic collection recorder is 7d；The time interval for automatically recording the time of the automatic collection recorder is
1-5min/ times.
Preferably, the temperature controlling range that alternating temperature of the present invention gets wet case is -40 DEG C -100 DEG C；The change
The humid control range that temperature gets wet case is 20%RH -98%RH.
A kind of measurement side based on foregoing soil-slope measuring device of corrosion resistance in the case where corroding peeling conditions
Method, it is characterised in that：The measurement method includes the following steps：
1) according to foregoing soil-slope, in the case where corroding peeling conditions, the measuring device of corrosion resistance builds measurement dress
It sets；
2) side slope surface soil sample to be measured is acquired；The side slope surface soil sample to be measured must not be pressurized, by squeezing and
It is turned round；The side slope surface soil sample to be measured is the soil cut on big blocky soil after side slope surface acquires big blocky soil
Sample；The side length of the side slope surface soil sample to be measured is greater than 50mm；Side slope surface soil sample to be measured is placed in inner cylinder
On band mesh metal grid at the top of shape support frame, after the reading zero of balance or peeling, side slope to be measured is measured
Quality m of the slope surface soil sample before on-test1；
3) it opens alternating temperature and gets wet case switch, according to the engineering practice design experiment condition of quasi- analysis, periodically adjust
Whole alternating temperature gets wet the temperature and humidity and circulation change of case；In a complete cycle, the alternating temperature gets wet the highest temperature of case
Degree is consistent with the historical high temperature of side slope region, and the alternating temperature gets wet the minimum temperature of case and going through for side slope region
History minimum temperature is consistent, and the figure that the temperature that the alternating temperature gets wet case changes over time is in sinusoidal；The alternating temperature gets wet case
Highest humidity is consistent with the historical high humidity of side slope region, and the alternating temperature gets wet minimum humidity and the side slope location of case
The historical low humidity in domain is consistent, and it is in sinusoidal, trapezoidal or saddle that the alternating temperature, which gets wet the figure that case humidity changes over time,
Shape；
4) the automatic collection recorder of balance is automatically recorded in the side slope surface soil sample to be measured in same time interval
Testing ongoing instant quality mtAnd the quality m of side slope surface soil sample to be measured after the end of the test2, described to be measured
The relational expression of total erosion peeling degree i of the side slope surface soil sample of amount in the case where corroding peeling conditions is：
Wherein：
I is the total erosion peeling degree of side slope surface soil sample to be measured in the case where corroding peeling conditions；
m1It is the quality of side slope surface soil sample to be measured before on-test；
m2It is the quality of side slope surface soil sample to be measured after the end of the test；
Degree i is peeled off in erosion of the side slope surface soil sample to be measured in the case where corroding peeling conditions at any timetRelation table
It is up to formula：
Wherein：
itIt is that degree is peeled off in the erosion of side slope surface soil sample to be measured at any time in the case where corroding peeling conditions；
m1It is the quality of side slope surface soil sample to be measured before on-test；
mtIt is that side slope surface soil sample to be measured is testing ongoing instant quality；
T is used time of the soil-slope in Rainfall simulator erosion；The function expression of the t is：
Wherein：
M is that length is L, and the side slope surface soil sample to be measured that width is W allows incrustate gross mass；
It is the variation function of the quality of soil sample and time that are made instantly available in test, i.e. itTo the derivative of time t.
Preferably, the present invention further includes after the step 4) of above-mentioned measurement method：
5) experimental data that step 4) obtains is analyzed and processed, the to be measured of statistics is participated in for same ENGINEERING POINT
Side slope surface soil sample be not less than 2 pieces, when test result it is very poor no more than its average value 10% when, side slope surface to be measured
Soil sample the total erosion peeling degree i or side slope surface soil sample to be measured corroded under peeling conditions in the case where corroding peeling conditions with
Degree i is peeled off in the erosion of timetTake the average value of test result.
It is an advantage of the invention that：
The present invention provides the measuring devices and method of a kind of soil-slope corrosion resistance in the case where corroding peeling conditions, wherein
The measuring device include interior cylindrical support frame, outer cylindrical brace frame, band mesh metal grid, metal check board,
Balance and alternating temperature get wet case；Band mesh metal grid is provided at the top of interior cylindrical support frame；External cylindrical branch
Metal check board is provided at the top of support；Outer cylindrical brace frame covers in the outside of balance；Interior cylindrical support frame is worn
Metal check board is crossed to be placed on balance；The sum of height of interior cylindrical support frame and balance is greater than outer cylindrical brace
The height of frame；Interior cylindrical support frame, outer cylindrical brace frame, band mesh metal grid, metal check board and day
It is flat to be arranged at alternating temperature and get wet in case；Side slope surface soil sample to be measured is placed on band mesh metal grid.The present invention utilizes
The erosion of the change of the conditions such as weathering, temperature, humidity under laboratory condition simulating natural environment, analysis slope surface soil property is peeled off.
The comparison with Practical Project is obtained to reach quickly test, reduction test period is used, by 1 year in engineering temperature humidity
Changing rule shortening is applied on test specimen in one week, and the factors such as test period and engine request are related, can be according to related item
Part is adjusted.The configuration of the present invention is simple, clear principle test strong operability, and required accessory easy processing is low in cost,
Laboratory equipment evaluation soil-slope slope surface corrosion resistance can be efficiently used and the workload and expense of light field test can be reduced
With, multiple groups test has been carried out, result can clearly identify the corrosion resistance of different soil, as a result accurately, and strong operability, test
As a result repeatability is strong.
Detailed description of the invention
Fig. 1 is the schematic diagram of soil-slope provided by the present invention corrosion resistance measuring device in the case where corroding peeling conditions；
Wherein：
1- interior cylindrical support frame；2- outer cylindrical brace frame；3- band mesh metal grid；4- metal grid
Plate；5- balance；6- weighing platform；7- data connecting line；8- automatic collection recorder；9- alternating temperature gets wet case.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.Described herein specific examples are only used to explain the present invention, is not used to limit
The present invention.
The method for measuring soil-slope corrosion resistance in the case where natural conditions corrode peeling conditions, is simulated using laboratory condition
The erosion of the change of the conditions such as weathering, temperature, humidity under natural environment, analysis slope surface soil property is peeled off.To reach quick test
The comparison with Practical Project is obtained, reduction test period is used, 1 year in engineering temperature humidity changing rule is shortened
It is applied on test specimen in one week.The factors such as test period and engine request are related, can be adjusted according to correlated condition.Due to
Holder combination part and day flat contact, balance are only capable of the quality of weighing part bracket, balance peeling zero.Soil sample is placed on band net
On eye metal grid, balance only weighs the quality of soil sample, quality of soil sample m when on-test1.Become when alternating temperature gets wet environment in case
When change, the soil sample surface soil body is peeled off to metal plate, then is the quality of incrustate, and balance weighs quality as m2, the difference between the two generation
The table peeling quality of side slope soil property, since density is identical, then：
I and itThe total corrosion resistance and instantaneous corrosion resistance of the soil body are respectively represented.
m1It is the quality of side slope surface soil sample to be measured before on-test；
mtIt is that side slope surface soil sample to be measured is testing ongoing instant quality；
T is used time of the soil-slope in Rainfall simulator erosion；The function expression of t is：
Wherein：
M is that length is L, and the side slope surface soil sample to be measured that width is W allows incrustate gross mass；
It is the variation function of the quality of soil sample and time that are made instantly available in test, i.e. itTo the derivative of time t.
Meanwhile experimental data obtained above is analyzed and processed, the to be measured of statistics is participated in for same ENGINEERING POINT
Side slope surface soil sample be not less than 2 pieces, when test result it is very poor no more than its average value 10% when, Slope to be measured
Face soil sample is in the total erosion peeling degree i or side slope surface soil sample to be measured corroded under peeling conditions in the case where corroding peeling conditions
Degree i is peeled off in erosion at any timetTake the average value of test result.
The technical solution adopted in the present invention is described in detail with reference to the accompanying drawing.
Referring to Fig. 1, the present invention provides a kind of measuring devices of soil-slope corrosion resistance in the case where corroding peeling conditions, should
Soil-slope measuring device of corrosion resistance in the case where corroding peeling conditions includes interior cylindrical support frame 1, external cylindrical branch
Support 2, band mesh metal grid 3, metal check board 4, balance 5 and alternating temperature get wet case 9；Interior cylindrical support frame 1
Top is provided with band mesh metal grid 3；The top of outer cylindrical brace frame 2 is provided with metal check board 4；Exterior cylindrical
Shape support frame 2 covers in the outside of balance 5；Interior cylindrical support frame 1 passes through metal check board 4 and is placed on balance 5；Inner circular
The sum of height of pillar support frame 1 and balance 5 is greater than the height of outer cylindrical brace frame 2；Interior cylindrical support frame 1,
Outer cylindrical brace frame 2, band mesh metal grid 3, metal check board 4 and balance 5 are arranged at alternating temperature and get wet case 9
In；Side slope surface soil sample to be measured is placed on band mesh metal grid 3.
Holder combination：It is made of interior cylindrical support frame and outer cylindrical brace frame.Wherein interior cylindrical supports
The height of frame need to be greater than outer cylindrical brace frame 5cm or more plus the height of balance, to guarantee the soil property and inner circular that fall
Pillar support frame does not contact；The floor space of interior cylindrical support frame should be less than the area of balance bearing tray, external cylindrical
The floor space of support frame should be much larger than balance floor space, so that balance can weigh the quality of interior cylindrical support frame,
But the quality of outer cylindrical brace frame cannot be weighed.
Band mesh metal grid：Screening area is generally 1cm2(can be bigger, do not allow too small), grid be metal
Steel wire weld forms, and surface is smooth, and cross sectional shape is round (not being preferably rectangle)；
Circular metal plate：Interior cylindrical support frame is given there are four round holes to pass through.Area need to be much larger than band mesh
Metal grid.
Balance：Separate type weighing device is made of weighing platform 6, data connecting line 7, automatic collection recorder 8, weighing
Platform 6 is connected by data connecting line 7 with automatic collection recorder 8.1-10kg of range of balance 5, precision 0.01g, automatically
The record time is 7d, and recording time interval every time is 5min/ times.
Alternating temperature gets wet case：For computer controlled temperature and the adjustable instrument of humidity, it can be achieved that the continuous week of temperature and humidity
Phase property circulation, temperature controlling range are -40 DEG C -100 DEG C, 20% -98%RH of humid control range.
The exterior support frame of holder combination is placed in alternating temperature and gets wet in case, and balance is placed in the centre bit in exterior support frame
It sets, interior shelf is placed on balance bearing platform, and circular metal plate is placed in external support top of support, band mesh metal grid
Net is placed in interior shelf.
The measurement method of soil-slope provided by the present invention corrosion resistance in the case where corroding peeling conditions, including following step
Suddenly：
Cylindrical support frame 2 is placed in alternating temperature first to get wet in case, balance is placed in cylindrical support frame 1, then
Cylindrical support frame 1 is placed on balance bearing platform, metal check board is placed in 2 top surface of cylindrical support frame, band mesh gold
Belong to grid to be placed on cylindrical support frame 1.
1, soil body soil sample is acquired, soil sample must not be pressurized, by squeezing and being turned round in sampling process, avoid vibrating in transportational process
Destroy soil structures.Soil is cut in soil body soil sample, generally preferably takes 6 pieces or more, side length is greater than the square of 50mm.Use balance
Measure soil sample temporal quality m1Sample is placed in band mesh metal by respectively 305g, 410g, 352g, 368g, 341g and 385g
On grid.
2, a whole set of instrument is assembled, at this time balance reading zero or peeling, soil sample is then placed in band mesh metal side
In grid.
3, alternating temperature is got wet into case water tank and fills water, turned on the switch, in the light of actual conditions or test requirements document adjustment temperature and humidity becomes
Law generally recommends rapid testing procedure to simplify workload, i.e., passes through laboratory test model engineering one in week age
The environmental change in year, to realize to the soil-slope measurement that quality of soil sample changes in the case where natural conditions corrode peeling conditions.Fastly
The test period of fast test method(s) is generally one week, and the long-term erosion peeling conditions test period for simulating side slope can increase by three-in right amount
Four periods, this test period are set to five weeks.In a complete cycle, alternating temperature gets wet case maximum temperature and side slope location
Domain historical high temperature is consistent, and minimum temperature is consistent with side slope region historical low temperature, and temperature changes over time figure
In sinusoidal；Highest humidity is consistent with side slope region historical high humidity, and minimum humidity and side slope region history are most
Low humidity is consistent, and it is consistent with region that humidity changes over time rule, for south generally sinusoidal or trapezoidal, for
The north is generally the shape of a saddle.In the light of actual conditions or test requirements document adjusts temperature and humidity changing rule, and recording balance is in time interval
The reading m of (generally 5min or 10min)tRespectively 263.2g, 365.3g, 302.0g, 324.0g, 303.5g and
346.6g.Data m is read in end to be tested2.Since the record time is longer, and recording time interval is 5min/ times, and data volume is huge
Greatly, it is as follows that partial results are provided as unit of week.
4, side slope soil property can be calculated in the peeling degree of alternation of wetting and drying situation with aforementioned formula (1), (2) and (3).
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of measuring device of soil-slope corrosion resistance in the case where corroding peeling conditions, it is characterised in that：The soil-slope
In the case where corroding peeling conditions, the measuring device of corrosion resistance includes interior cylindrical support frame (1), outer cylindrical brace frame
(2), band mesh metal grid (3), metal check board (4), balance (5) and alternating temperature get wet case (9)；The interior cylindrical
Band mesh metal grid (3) is provided at the top of support frame (1)；It is provided at the top of the outer cylindrical brace frame (2)
Metal check board (4)；The outer cylindrical brace frame (2) covers in the outside of balance (5)；The interior cylindrical support frame
(1) metal check board (4) are passed through to be placed on balance (5)；The height of the interior cylindrical support frame (1) and balance (5)
The sum of be greater than outer cylindrical brace frame (2) height；The interior cylindrical support frame (1), outer cylindrical brace frame
(2), band mesh metal grid (3), metal check board (4) and balance (5) are arranged at alternating temperature and get wet in case (9)；It is to be measured
The side slope surface soil sample of amount is placed on band mesh metal grid (3)；The balance (5) is separate type weighing device；The day
Flat (5) include weighing platform (6), data connecting line (7) and automatic collection recorder (8)；The interior cylindrical support frame
(1) metal check board (4) are passed through to be placed on the weighing platform (6) of balance (5)；The automatic collection recorder (8) is placed in change
It is external that temperature gets wet case (9)；The weighing platform (6) is connected by data connecting line (7) with automatic collection recorder (8)；
The floor space of the interior cylindrical support frame (1) is less than the area of the weighing platform (6) of balance (5)；The outer circle
The floor space of pillar support frame (2) gets wet the land occupation face of the space in case (9) in alternating temperature much larger than the weighing platform (6) of balance (5)
Product；
The temperature controlling range that the alternating temperature gets wet case (9) is -40 DEG C -100 DEG C；The alternating temperature gets wet the humid control of case (9)
Range is 20%RH -98%RH.
2. the measuring device of soil-slope according to claim 1 corrosion resistance in the case where corroding peeling conditions, feature exist
In：The sum of height of the interior cylindrical support frame (1) and balance (5) is at least more than outer cylindrical brace frame (2)
Height 5cm.
3. the measuring device of soil-slope according to claim 2 corrosion resistance in the case where corroding peeling conditions, feature exist
In：The area of the metal check board (4) is much larger than the area with mesh metal grid (3).
4. the measuring device of soil-slope according to claim 3 corrosion resistance in the case where corroding peeling conditions, feature exist
In：The area of single mesh in the band mesh metal grid (3) is not less than 1cm2, the band mesh metal grid
It (3) is that section is welded for circular metal steel wire.
5. the measuring device of soil-slope according to claim 4 corrosion resistance in the case where corroding peeling conditions, feature exist
In：The range of the balance (5) is 1-10kg；The precision of the balance (5) is 0.01g；The automatic collection recorder (8)
Automatically recording the time is 7d；The time interval for automatically recording the time of the automatic collection recorder (8) is 1-5min/ times.
6. a kind of survey based on soil-slope as claimed in claim 5 measuring device of corrosion resistance in the case where corroding peeling conditions
Amount method, it is characterised in that：The measurement method includes the following steps：
1) according to soil-slope as claimed in claim 5, in the case where corroding peeling conditions, the measuring device of corrosion resistance builds measurement
Device；
2) side slope surface soil sample to be measured is acquired；The side slope surface soil sample to be measured must not be pressurized, by squeezing and turned round；
The side slope surface soil sample to be measured is the soil sample cut on big blocky soil after side slope surface acquires big blocky soil；It is described
The side length of side slope surface soil sample to be measured is greater than 50mm；Side slope surface soil sample to be measured is placed in interior cylindrical support frame
(1) on band mesh metal grid (3) at the top of, after the reading zero of balance (5) or peeling, side slope to be measured is measured
Quality m of the slope surface soil sample before on-test1；
3) it opens alternating temperature and gets wet case (9) switch, according to the engineering practice design experiment condition of quasi- analysis, periodically adjust
Alternating temperature gets wet the temperature and humidity and circulation change of case (9)；In a complete cycle, the alternating temperature gets wet case (9) most
High-temperature is consistent with the historical high temperature of side slope region, and the alternating temperature is got wet where the minimum temperature and side slope of case (9)
The historical low temperature in region is consistent, and the figure that the temperature that the alternating temperature gets wet case (9) changes over time is in sinusoidal；The change
The highest humidity that temperature gets wet case (9) is consistent with the historical high humidity of side slope region, and the alternating temperature gets wet the minimum of case (9)
Humidity is consistent with the historical low humidity of side slope region, and the alternating temperature gets wet the figure that case (9) humidity changes over time and is in
Sinusoidal, the trapezoidal or shape of a saddle；
4) the automatic collection recorder (8) of balance (5) is automatically recorded in the side slope surface soil to be measured in same time interval
Sample is testing ongoing instant quality mtAnd the quality m of side slope surface soil sample to be measured after the end of the test2, it is described to
The relational expression of total erosion peeling degree i of the side slope surface soil sample of measurement in the case where corroding peeling conditions is：
Wherein：
I is the total erosion peeling degree of side slope surface soil sample to be measured in the case where corroding peeling conditions；
m1It is the quality of side slope surface soil sample to be measured before on-test；
m2It is the quality of side slope surface soil sample to be measured after the end of the test；
Degree i is peeled off in erosion of the side slope surface soil sample to be measured in the case where corroding peeling conditions at any timetRelational expression
It is：
Wherein：
itIt is that degree is peeled off in the erosion of side slope surface soil sample to be measured at any time in the case where corroding peeling conditions；
m1It is the quality of side slope surface soil sample to be measured before on-test；
mtIt is that side slope surface soil sample to be measured is testing ongoing instant quality；
T is used time of the soil-slope in Rainfall simulator erosion；The function expression of the t is：
Wherein：
M is that length is L, and the side slope surface soil sample to be measured that width is W allows incrustate gross mass；
It is the variation function of the quality of soil sample and time that are made instantly available in test, i.e. iTTo the derivative of time t.
7. measurement method according to claim 6, it is characterised in that：Further include after the step 4)：
5) experimental data that step 4) obtains is analyzed and processed, the side slope to be measured of statistics is participated in for same ENGINEERING POINT
Slope surface soil sample be not less than 2 pieces, when test result it is very poor no more than its average value 10% when, side slope surface soil sample to be measured
The total erosion peeling degree i or side slope surface soil sample to be measured corroded under peeling conditions in the case where corroding peeling conditions at any time
Erosion peel off degree itTake the average value of test result.
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| RU2017407C1 (en) * | 1991-10-29 | 1994-08-15 | Чувашский сельскохозяйственный институт | Device for measuring potential of antierosion strength of soil |
| CN102445528A (en) * | 2010-09-10 | 2012-05-09 | 香港科技大学 | Humidity and osmotic suction-controlled box |
| CN103091240A (en) * | 2013-01-14 | 2013-05-08 | 北京林业大学 | Splash erosion tester and using method and application thereof |
| CN103472205A (en) * | 2013-09-03 | 2013-12-25 | 中国长江三峡集团公司 | Slope water-soil loss experiment device and method under combined extreme meteorological conditions |
| CN205607827U (en) * | 2016-05-01 | 2016-09-28 | 山西省交通科学研究院 | Measurement device for soil property side slope is anti aggressivity under erosion condition of peeling off |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2017407C1 (en) * | 1991-10-29 | 1994-08-15 | Чувашский сельскохозяйственный институт | Device for measuring potential of antierosion strength of soil |
| CN102445528A (en) * | 2010-09-10 | 2012-05-09 | 香港科技大学 | Humidity and osmotic suction-controlled box |
| CN103091240A (en) * | 2013-01-14 | 2013-05-08 | 北京林业大学 | Splash erosion tester and using method and application thereof |
| CN103472205A (en) * | 2013-09-03 | 2013-12-25 | 中国长江三峡集团公司 | Slope water-soil loss experiment device and method under combined extreme meteorological conditions |
| CN205607827U (en) * | 2016-05-01 | 2016-09-28 | 山西省交通科学研究院 | Measurement device for soil property side slope is anti aggressivity under erosion condition of peeling off |
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