CN206096118U - Test soil body destroys device of critical hydrodynamic force condition of loss - Google Patents
Test soil body destroys device of critical hydrodynamic force condition of loss Download PDFInfo
- Publication number
- CN206096118U CN206096118U CN201620923112.9U CN201620923112U CN206096118U CN 206096118 U CN206096118 U CN 206096118U CN 201620923112 U CN201620923112 U CN 201620923112U CN 206096118 U CN206096118 U CN 206096118U
- Authority
- CN
- China
- Prior art keywords
- head
- soil body
- transmissometer
- lost
- bucket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a test soil body destroys device of critical hydrodynamic force condition of loss, including flood peak hoisting device, be equipped with the ya keli bucket on the flood peak hoisting device, the bottom of yakeli bucket is connected with the hose, has connected gradually a turbidity instrument, sample carrier, flowmeter and the 2nd turbidity instrument on the hose, intaking end in the sample carrier for ponding chamber, the other end is equipped with the soil sample, is equipped with the pipeline in the axial at soil sample center, the 2nd turbidity instrument's one end is connected with the drain pipe, a turbidity instrument, flowmeter and the 2nd turbidity instrument connect the data acquisition analysor respectively. The utility model has the characteristics of degree of automation is high, the precision is high, the error is little.
Description
Technical field
This utility model is related to a kind of device of the critical hydrodynamic condition that test damage of soil body is lost in, particularly a kind of to survey
Cause the automatic test device of the critical hydrodynamic condition of damage of soil body loss in examination Groundwater infiltration soil body space.
Background technology
Currently, the test that damage of soil body is lost in is caused not have direct device to test in Groundwater infiltration soil body space,
Predominantly indirectly tested by constant head test, varying head experimental test and pinhole test.
These three methods have some limitations.Constant head test, varying head test methods and procedures are in soil test
Method standard（GBT50123-1999）In have detailed introduction, which mainly tests the infiltration coefficient of various soil mass.Using ordinary water
Head and varying head assay device can test the critical hydraulic gradient of soil body penetration destruction.Constant head and varying head assay device are certainly
Dynamicization low degree, precision are low, and error is big, fails satisfaction and is actually needed.And pinhole test is mainly used for analysis and judges the soil body point
Scattered property degree, simply the qualitative analyses soil body be subject to seepage failure complexity, it is impossible to actually measure the critical bar of damage of soil body
Part, and, pinhole test does not formulate correlation test specification in China, illustrates that the test is not promoted the use of, exist compared with
Big limitation.
The content of the invention
The purpose of this utility model is, there is provided a kind of device of the critical hydrodynamic condition that test damage of soil body is lost in.
The characteristics of this utility model has high degree of automation, high precision, little error, can meet actually used demand.
The technical solution of the utility model：A kind of device of the critical hydrodynamic condition that test damage of soil body is lost in, including
There is head lifting device, head lifting device is provided with acrylic bucket, and the bottom of acrylic bucket is connected with flexible pipe, on flexible pipe successively
The first transmissometer, sample carrier, flow instrument and the second transmissometer are connected with, the water inlet end in the sample carrier is hydrops chamber, another
End is provided with soil sample, and the axial direction at soil sample center is provided with pipeline, and one end of the second transmissometer is connected with drain pipe, first turbidity
Instrument, flow instrument and the second transmissometer connect data collection and analysis device respectively.
The device of the critical hydrodynamic condition that aforesaid test damage of soil body is lost in, the head lifting device include water
Head bracket, head support are provided with head supporting plate, and the acrylic bucket is connected with above head supporting plate on head supporting plate
Pull rope, the other end of pull rope bypass first pulley and second pulley below the top blind flange of head support, then
It is fixed in the lifting handwheel of head support side.
The device of the critical hydrodynamic condition that aforesaid test damage of soil body is lost in, the acrylic bucket are provided with sluicing
Valve, top blind flange are provided with water inlet pipe.
The device of the critical hydrodynamic condition that aforesaid test damage of soil body is lost in, the head supporting plate are provided with scale
Chi；The acrylic bucket is provided with infrared displacement sensor, infrared displacement sensor connection data collection and analysis device.
The beneficial effects of the utility model：
1st, data are tested automatically：By pipeline current test instrument part of detecting, the change of turbidity in water accurately can be tested automatically
Change the change with flow.
2nd, data analysis：The data automatic input acquisition analysis system of sensor automatic data collection, draws relation
Curve, according to the change of curve, judges the critical state that sample destruction is lost in, draws critical condition value Hcr、Qcr、Vcr。
3rd, hydraulic pressure control high precision：By pipeline current test instrument water pressure control section, can accurately, conveniently controlling water level,
Head is tested using laser displacement sensor, precision is 1mm.
In sum, than prior art high degree of automation, high precision, personal error are little, easy to use for this utility model.
Description of the drawings
Structural representation of the accompanying drawing 1 for this utility model device；
Left view of the accompanying drawing 2 for accompanying drawing 1.
Description of reference numerals：1- head supports, 2- top blind flanges, 3- head supporting plates, 4- acrylic buckets, 5- drain valves, 6-
Infrared displacement sensor, 7- rules, 8- water inlet pipes, 9- pull ropes, 10- lifting handwheels, 11- flexible pipes, the first transmissometers of 12-,
13- sample carriers, 14- flow instruments, the second transmissometers of 15-, 16- drain pipies, 17- data collection and analysis devices, 18- hydrops chamber, 19- are native
Sample, 20- pipelines, 21- first pulleys, 22- second pulleys.
Specific embodiment
Embodiment of the present utility model：A kind of device of the critical hydrodynamic condition that test damage of soil body is lost in, such as accompanying drawing
Shown in 1-2, head lifting device is included, head lifting device is provided with acrylic bucket 4, and the bottom of acrylic bucket 4 is connected with
Flexible pipe 11, is connected with the first transmissometer 12, sample carrier 13, flow instrument 14 and the second transmissometer 15, the examination in turn on flexible pipe 11
Water inlet end in sample tank 13 is hydrops chamber 18, and the other end is provided with soil sample 19, and the axial direction at 19 center of soil sample is provided with pipeline 20, second
One end of transmissometer 15 is connected with drain pipe 16, and first transmissometer 12, flow instrument 14 and the second transmissometer 15 connect respectively
Data collection and analysis device 17.
The head lifting device includes head support 1, and head support 1 is provided with head supporting plate 3, the acrylic bucket
4 on head supporting plate 3, and the top of head supporting plate 3 is connected with pull rope 9, and the other end of pull rope 9 is bypassed located at head support
First pulley 21 and second pulley 22 below 1 top blind flange 2, is then attached to the lifting handss located at 1 side of head support
On wheel 10.
The acrylic bucket 4 is provided with drain valve 5, and top blind flange 2 is provided with water inlet pipe 8.
The head supporting plate 3 is provided with rule 7；The acrylic bucket 4 is provided with infrared displacement sensor 6, infrared position
The connection data collection and analysis of displacement sensor 6 device 17.
The method that the critical hydrodynamic condition that damage of soil body is lost in is tested using said apparatus, is adjusted by lifting device
In acrylic bucket 4, the height of water level is followed successively by H1、H2…Hi, make the water in acrylic bucket 4 produce corresponding hydraulic pressure and be followed successively by
P1、P2…Pi, water flows through pipeline 20 in the first transmissometer 12, sample carrier 13 in soil sample 19, flow instrument 14 successively by flexible pipe 11
With the second transmissometer 15, when in acrylic bucket water level be HiWhen, the monitoring of the first transmissometer 12 flows through the turbid of the water before pipeline 20
Degree Ti1, flow instrument 14 monitoring flow through pipeline 20 water flow Qi, the monitoring of the second transmissometer 15 flows through the water after pipeline 20
Turbidity Ti2, and respectively by Hi、Ti1、QiAnd Ti2Incoming data collection analysises device 17, and H is drawn in data collection and analysis device 17i-
Ti1Curve, Hi- Ti2Curve and Hi-QiCurve, when condition 1：Ti1＜ Ti2With condition 2：Hi-QiCurve is changed into prominent from gentle rising
So sharply increase while when occurring, illustrating in head HiCurrent under effect cause soil sample 19 in sample carrier 13 to there occurs destructiveness
It is lost in, then draws the destroyed critical head H of soil sample 13cr=Hi-1, corresponding flow Qi-1For critical flow Qcr, it is corresponding
Critical flow velocity Vcr= Qi-1The cross-sectional area of/A, the A for pipeline 20.
Pull rope 9 is discharged or draws in by rotating lifting handwheel 10 so as to adjust the height of head supporting plate 3, sub- gram of control
The height H of water level in power bucket 4i。
Persistently added water into acrylic bucket 4 by water inlet pipe 8, the water Jing drain valves 5 of redundance are discharged, and make acrylic bucket
4 water remains at fixed position, and hydraulic pressure is more stable.
The height of water level in acrylic bucket 4 is immediately arrived at by the infrared displacement induction apparatuss 6 on acrylic bucket 4, and directly
Send data collection and analysis device 17 to；Meanwhile, the height of water level in acrylic bucket 4 is entered by the rule 7 on head supporting plate 3
One step is monitored, it is ensured that the reliability of data.
Claims (4)
1. it is a kind of test damage of soil body be lost in critical hydrodynamic condition device, it is characterised in that：Include head and lift dress
Put, head lifting device is provided with acrylic bucket（4）, acrylic bucket（4）Bottom be connected with flexible pipe（11）, flexible pipe（11）On according to
It is secondary to be connected with the first transmissometer（12）, sample carrier（13）, flow instrument（14）With the second transmissometer（15）, the sample carrier（13）It is interior
Water inlet end be hydrops chamber（18）, the other end is provided with soil sample（19）, soil sample（19）The axial direction at center is provided with pipeline（20）, second
Transmissometer（15）One end be connected with drain pipe（16）, first transmissometer（12）, flow instrument（14）With the second transmissometer
（15）Connect data collection and analysis device respectively（17）.
2. it is according to claim 1 test damage of soil body be lost in critical hydrodynamic condition device, it is characterised in that：Institute
State head lifting device and include head support（1）, head support（1）It is provided with head supporting plate（3）, the acrylic bucket（4）
Located at head supporting plate（3）On, head supporting plate（3）Top be connected with pull rope（9）, pull rope（9）The other end bypass and be located at
Head support（1）Top blind flange（2）The first pulley of lower section（21）And second pulley（22）, it is then attached to located at head
Frame（1）The lifting handwheel of side（10）On.
3. it is according to claim 1 test damage of soil body be lost in critical hydrodynamic condition device, it is characterised in that：Institute
State acrylic bucket（4）It is provided with drain valve（5）, top blind flange（2）It is provided with water inlet pipe（8）.
4. it is according to claim 2 test damage of soil body be lost in critical hydrodynamic condition device, it is characterised in that：Institute
State head supporting plate（3）It is provided with rule（7）；The acrylic bucket（4）It is provided with infrared displacement sensor（6）, infrared displacement
Sensor（6）Connection data collection and analysis device（17）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620923112.9U CN206096118U (en) | 2016-08-23 | 2016-08-23 | Test soil body destroys device of critical hydrodynamic force condition of loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620923112.9U CN206096118U (en) | 2016-08-23 | 2016-08-23 | Test soil body destroys device of critical hydrodynamic force condition of loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096118U true CN206096118U (en) | 2017-04-12 |
Family
ID=58469699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620923112.9U Withdrawn - After Issue CN206096118U (en) | 2016-08-23 | 2016-08-23 | Test soil body destroys device of critical hydrodynamic force condition of loss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206096118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383217A (en) * | 2016-08-23 | 2017-02-08 | 贵州理工学院 | Method and device for testing critical hydrodynamic condition for soil damage and loss |
-
2016
- 2016-08-23 CN CN201620923112.9U patent/CN206096118U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383217A (en) * | 2016-08-23 | 2017-02-08 | 贵州理工学院 | Method and device for testing critical hydrodynamic condition for soil damage and loss |
| CN106383217B (en) * | 2016-08-23 | 2018-04-13 | 贵州理工学院 | A kind of method and device for testing the critical hydrodynamic condition that damage of soil body is lost in |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170412 Effective date of abandoning: 20180413 |
|
| AV01 | Patent right actively abandoned |