CN205607987U - Soil body seepage flow process and deformation behaviour test device - Google Patents
Soil body seepage flow process and deformation behaviour test device Download PDFInfo
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- CN205607987U CN205607987U CN201620183684.8U CN201620183684U CN205607987U CN 205607987 U CN205607987 U CN 205607987U CN 201620183684 U CN201620183684 U CN 201620183684U CN 205607987 U CN205607987 U CN 205607987U
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- plexiglass cylinder
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- rainfall
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Abstract
The utility model discloses a soil body seepage flow process and deformation behaviour test device, the device divide into the three, and the first portion is test device, including organic glass drum, organic glass dome, sponge, permeable stone, the second portion is measuring device, including ceramic tensimeter, miniature soil pressure cell, pore pressure cell, moisture content tester, scale, stress and strain tester, the third part is rainfall devices, including water tank, booster pump, electron flow controller, shower nozzle. Above three combines closely, common work. Through the rainfall devices simulation rainfall process to the soil body, utilize the measuring device who buries at different soil layers to survey the soil body rate at seepage flow in -process soil body internal porosity respectively, pore water pressure, the moisture content, a series of changes such as soil pressure and deformation obtain the different soil bodys, seepage flow process law under different rainfall intensity conditions.
Description
Technical field
The present invention relates to one and can monitor the soil body moisture content, pore water pressure, table in numerical analysis of rainfall infiltration
Face sedimentation and the assay device of soil pressure change, the present invention may be used for analyzing different soil property, variable grain
The impact of grating, different rain time and rainfall intensity seepage flow characteristics internal on side slope of embankment or cut slope.
Background technology
China southeast, Localities In Southwest mostly are mountain and hill landforms, and coming down under the influence of rainfall happens occasionally.
Substantial amounts of statistics shows, major part landslide is all to occur at during rainfall or after rainfall, it is seen that
The inside soil body seepage field change that rainfall causes is the main cause causing slope instability, therefore in rainfall
Flow event within middle side slope is always the research emphasis of Geotechnical Engineering circle.The flow event meeting that rainfall causes
Cause a series of changes such as soil body pore water pressure, moisture content, soil pressure change, and dissimilar soil property,
Different rainfall intensities and rain time all can produce impact to above-mentioned seepage flow characteristics.This assay device and examination thereof
Research in terms of seepage through soil mass process and deformation behaviour is significant by proved recipe method.
The existing method that the soil body carries out indoor model test is mainly simulated rainfall to the soil body, measures soil
Body is some intensity indexs of the soil body under different water cut, analyze the soil body in the case of certain several specific moisture content
Intensive parameter, and there is presently no and the soil body produced a series of persistence in the middle of flow event can be become
Change the device uninterruptedly monitored.Therefore design one can monitor the soil body in numerical analysis of rainfall infiltration in real time
The device of moisture content, pore water pressure, surface settlement and soil pressure change is the most necessary.
Summary of the invention
The problem to be solved in the present invention is a kind of test dress observing seepage through soil mass process and deformation behaviour thereof of design
Put, be used for measuring current in individual event flow event inside soil body pore water pressure, moisture content, deformation and
STRESS VARIATION, simultaneously it is also contemplated that soil body type, grain composition forms the impact on above-mentioned each characteristic variable.
In order to solve above-mentioned technical problem, the present invention provides a kind of seepage through soil mass process and deformation behaviour test dress
Putting, this device is divided into three parts, and Part I is assay device, including plexiglass cylinder, organic glass
Glass dome, sponge, permeable stone；Part II is measurement apparatus, including pottery tonometer, soil pressure cell,
Pore pressure gauge, detector for water content rate, rule, stress-strain test instrument；Part III is rainfall dress
Put, including water tank, booster pump, electronic flow controller, shower nozzle.Three above part is tightly combined, altogether
With work.
Described plexiglass cylinder is made up of the lucite that rigidity is higher, and the height of this cylinder is 800mm,
Inside diameter 390mm, outside diameter 400mm；Any for plexiglass cylinder sidewall vertical position is bored 8
The circular hole of a diameter of 28mm, the bottom of the center of circle distance plexiglass cylinder of first boring is 50mm, with
First boring the center of circle be reference point be 80mm in the spacing of the adjacent holes of vertical position；At above-mentioned circular hole
Symmetric position bore the circular hole of 8 a diameter of 10mm, these circular holes are after setting completed at this row circular hole
Bottom be separately drilled with the circular hole of a diameter of 15mm as entering, discharge opening.
The described a diameter of 410mm of lucite dome, thickness is 10mm, after rainer simulated rainfall,
In time dome is arranged on the top of plexiglass cylinder, prevents the evaporation of moisture.
Described permeable stone is arranged on the bottom of plexiglass cylinder, moisture be free to by and soil particle
Can not pass through, prevent soil body blocking bottom circular aperture thus ensure the normal use into, discharge opening, this permeable stone
Thickness be 30mm.
Described pottery its measurement scope of tonometer is 0～100kPa, and precision is 2kPa, at each a diameter of 28mm
Embedment pottery tonometer at circular hole, the display dial of this tonometer is in the outside of plexiglass cylinder and uses glass
Glue is fixed, and notes the necessary fixation of pottery tonometer, prevents from, during test, the soil body is produced disturbance.
Scope 0～50kPa measured by described pore pressure gauge, and precision 0.04kPa, often banket during test 80mm
Imbed a ventage piezometer, the wire of this device sidewall against plexiglass cylinder the top at this cylinder
Portion is unified to be extracted, and the other end of wire connects stress-strain test instrument to read data.
Described soil pressure cell measure scope 0～50kP, precision 0.04kPa, often banket during test 80mm time embedment one
Individual soil pressure cell, the wire of this device sidewall against plexiglass cylinder the top at this cylinder are unified draws
Out, the other end of wire connects stress-strain test instrument to read data.
This instrument of described detector for water content rate is divided into reading cell and measuring unit, it is desirable to measurement moisture content model
Enclosing 0～100%, precision is 0.1%, the circular hole position of each a diameter of 10mm on the sidewall of plexiglass cylinder
Imbedding the measuring unit of this device, the wire connected between reading cell and measuring unit passes also at circular hole
To seal at circular hole with glass cement, its reading cell is in the outside of plexiglass cylinder.
Described rule must assure that during banketing and banketed after vertical, such guarantee
The soil body sedimentation value measured is accurate.
The device of described simulated rainfall, including water tank, electronic flow controller, shower nozzle, booster pump, wherein
Water tank is made up of the lucite that thickness is 10mm, and capacity reaches 12L, the maximum pressure 6kPa of booster pump,
Electronic flow controller span of control 20～200ml/min, precision 1ml/min, capacity of sprinkler scope
20～200ml/min, utilize above several devices can the intensity controlling rainfall effectively.
Use seepage through soil mass process and deformation behaviour assay device, the innovation of the present invention of technique scheme
Part is: the sidewall diverse location at assay device plexiglass cylinder has carried out punching design, so may be used
With by being arranged on the equipment of different soil and carrying out the seepage flow of the soil body continuing, omnibearing observation, this test
Device is truly realized the research needs to seepage through soil mass process and deformation behaviour thereof.
Assay device simple structure of the present invention, with low cost, easy accessibility, can reuse.This test
Device can study various soil mass type, the flow event of various soil mass grain composition and deformation behaviour thereof.This
The regulation of outer rainfall simulator is easy, easily controllable, can simulate the rainfall of varying strength.Test dress
Arrange bottom the main body plexiglass cylinder put into, discharge opening, in order to regulate the initial water level of the tested soil body,
Can realize easily the observation of seepage through soil mass process under different initial water levels.
Accompanying drawing explanation
Fig. 1 is unitary side view of the present invention
Fig. 2 is the overall diagram of plexiglass cylinder of the present invention
Fig. 3 is the front view of plexiglass cylinder of the present invention
Fig. 4 is the left view of plexiglass cylinder of the present invention
Fig. 5 is lucite dome of the present invention
Fig. 6 is the overall diagram of rainer of the present invention
Detailed description of the invention
Below in conjunction with the accompanying drawings, the concrete reality of a kind of seepage through soil mass process and deformation behaviour assay device is described in detail
Execute mode
As this device of Fig. 1 mainly include machine glass cylinder (1), lucite dome (2), sponge (3),
Permeable stone (4), pottery tonometer (5), soil pressure cell (6), pore pressure gauge (7), detector for water content rate (8),
Rule (9), stress-strain test instrument (10), water tank (11), booster pump (12), electronic flow controller
(13), shower nozzle (14).Barrel at plexiglass cylinder (1) is drilled with a number of circular hole, these circles
Hole is used for installing the devices such as pottery tonometer (5), detector for water content rate (8)；In plexiglass cylinder (1)
Top be provided with water tank (11), shower nozzle (14) electronic flow controller (13), booster pump (12) be used for mould
Intend rainfall and the intensity of rainfall；Plexiglass cylinder (1) bottom is provided with into, discharge opening so that adjusting
Save the initial water level of the surveyed soil body.
As Fig. 2,3,4 plexiglass cylinder is made up of the lucite that rigidity is higher, the height of this cylinder is
800mm, inside diameter 390mm, outside diameter 400mm；By arbitrarily vertical for plexiglass cylinder sidewall position
Putting the circular hole boring 8 a diameter of 28mm, the bottom of the center of circle distance plexiglass cylinder of first boring is
50mm, with the center of circle of first boring for reference point in the spacing of the adjacent holes of vertical position as 80mm；
Symmetric position at above-mentioned circular hole bores the circular hole of 8 a diameter of 10mm, and these circular holes are after setting completed at this
The bottommost of row circular hole be separately drilled with the circular hole of a diameter of 15mm as entering, discharge opening.
Such as Fig. 5 a diameter of 410mm of lucite dome, thickness is 10mm, after rainfall simulation device,
In time dome is arranged on the top of plexiglass cylinder, prevents the evaporation of moisture.
Such as Fig. 6 rainer, water tank is made up of the lucite that thickness is 10mm, and capacity reaches 12L,
The maximum pressure 6kPa of booster pump, electronic flow controller span of control 20～200ml/min, precision 1ml/min,
Capacity of sprinkler scope 20～200ml/min.
Claims (7)
1. a seepage through soil mass process and deformation behaviour assay device, it is characterised in that: this device specifically includes that plexiglass cylinder (1), lucite dome (2), sponge (3), permeable stone (4), pottery tonometer (5), soil pressure cell (6), pore pressure gauge (7), detector for water content rate (8), rule (9), stress-strain test instrument (10), water tank (11), booster pump (12), electronic flow controller (13), shower nozzle (14)；Barrel at described plexiglass cylinder (1) is drilled with a number of circular hole, and these circular holes are used for installing pottery tonometer (5), detector for water content rate (8), pore pressure gauge (7), soil pressure cell (6)；The top of described plexiglass cylinder (1) is provided with water tank (11), shower nozzle (14) electronic flow controller (13), booster pump (12) for simulated rainfall process and the intensity of rainfall；Described plexiglass cylinder (1) bottom is provided with into, discharge opening so that regulating the initial water level of the surveyed soil body；Described plexiglass cylinder (1) bottom is provided with permeable stone and prevents soil particle blocking the entering of plexiglass cylinder, discharge opening.
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterised in that: plexiglass cylinder (1) is made up of lucite, and the height of this cylinder is 800mm, inside diameter 390mm, outside diameter 400mm；The circular hole of 8 a diameter of 28mm will be bored on any one vertical direction of plexiglass cylinder (1) sidewall, the bottom in center of circle distance plexiglass cylinder (1) of first boring is 50mm, with the center of circle of first boring for reference point in the spacing of the adjacent holes of vertical position as 80mm；Symmetric position at above-mentioned circular hole bores the circular hole of 8 a diameter of 10mm, these circular holes be separately drilled with at the bottommost of this row circular hole after setting completed the circular hole of a diameter of 15mm as entering, discharge opening.
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterized in that: pottery tonometer (5) its measurement scope is 0 ~ 100kPa, precision is 2 kPa, embedment pottery tonometer (5) at each a diameter of 28mm circular hole, the display dial of this tonometer in the outside of plexiglass cylinder and is fixed with glass cement, guarantee pottery tonometer (5) fixation, prevent from the trial the soil body being produced disturbance.
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterized in that: scope 0 ~ 50 kPa measured by pore pressure gauge (7), precision 0.04 kPa, often banket during test 80mm time embedment one pore pressure gauge (7), against the sidewall of plexiglass cylinder (1) and at the top of this cylinder, unification extracts the wire of this device, and the other end of wire connects stress-strain test instrument (10) to read data.
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterized in that: soil pressure cell measures scope 0 ~ 50kP, precision 0.04kPa, often banket during test 80mm time embedment one soil pressure cell (6), against the sidewall of plexiglass cylinder (1) and at the top of this cylinder, unification extracts the wire of this device, and the other end of wire connects stress-strain test instrument (10) to read data.
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterized in that: detector for water content rate is divided into reading cell and measuring unit, require to measure moisture content scope 0 ~ 100%, precision is 0.1%, on the sidewall of plexiglass cylinder (1), the measuring unit of this device is imbedded in the circular hole position of each a diameter of 10mm, connecting the wire between reading cell and measuring unit to pass at circular hole and will seal at circular hole with glass cement, its reading cell is in the outside of plexiglass cylinder (1).
A kind of seepage through soil mass process and deformation behaviour assay device, it is characterized in that: the device of simulated rainfall, including water tank (11), electronic flow controller (13), shower nozzle (14), booster pump (12), it is characterized in that: the lucite that water tank has thickness to be 10mm is made, capacity reaches more than 12L, the maximum pressure 6kPa of booster pump, electronic flow controller span of control 20 ~ 200ml/min, precision 1ml/min, the device of this simulated rainfall can effectively control rainfall intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620183684.8U CN205607987U (en) | 2016-06-23 | 2016-06-23 | Soil body seepage flow process and deformation behaviour test device |
Applications Claiming Priority (1)
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| CN201620183684.8U CN205607987U (en) | 2016-06-23 | 2016-06-23 | Soil body seepage flow process and deformation behaviour test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562526A (en) * | 2018-03-21 | 2018-09-21 | 中冶华天工程技术有限公司 | The experimental rig and test method of study two-dimensional and three dimensional fluid flow-soil particle Erosion Law |
| CN109974593A (en) * | 2019-04-01 | 2019-07-05 | 太原理工大学 | A kind of experimental rig and test method for simulating soil body cavity expansion |
| CN114428033A (en) * | 2022-03-31 | 2022-05-03 | 深圳市勘察研究院有限公司 | Heavy rainfall earth's surface water content early warning monitoring devices |
-
2016
- 2016-06-23 CN CN201620183684.8U patent/CN205607987U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562526A (en) * | 2018-03-21 | 2018-09-21 | 中冶华天工程技术有限公司 | The experimental rig and test method of study two-dimensional and three dimensional fluid flow-soil particle Erosion Law |
| CN109974593A (en) * | 2019-04-01 | 2019-07-05 | 太原理工大学 | A kind of experimental rig and test method for simulating soil body cavity expansion |
| CN109974593B (en) * | 2019-04-01 | 2020-09-25 | 太原理工大学 | Testing device and testing method for simulating expansion of soil body column hole |
| CN114428033A (en) * | 2022-03-31 | 2022-05-03 | 深圳市勘察研究院有限公司 | Heavy rainfall earth's surface water content early warning monitoring devices |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170623 |
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| CF01 | Termination of patent right due to non-payment of annual fee |