CN207751839U - One kind three determines hydrohead test instrument - Google Patents
One kind three determines hydrohead test instrument Download PDFInfo
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- CN207751839U CN207751839U CN201721920913.0U CN201721920913U CN207751839U CN 207751839 U CN207751839 U CN 207751839U CN 201721920913 U CN201721920913 U CN 201721920913U CN 207751839 U CN207751839 U CN 207751839U
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- water
- testing apparatus
- infiltration testing
- test instrument
- infiltration
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Abstract
The utility model discloses one kind three to determine hydrohead test instrument, is related to pervasion test device technical field；Including determining water head equipment, inlet pipeline, water return pipeline, pore water pressure measuring device and multiple infiltration testing apparatus；The bottom of infiltration testing apparatus is provided with water inlet, water outlet is provided at the top of infiltration testing apparatus, and the inside of infiltration testing apparatus is for being packed into experimental sample；It includes spill box to determine water head equipment, and the height residing for the spill box is more than the height of the infiltration testing apparatus；Inlet pipeline is connected between spill box and the water inlet of infiltration testing apparatus, the water return pipeline is connected on the water outlet of infiltration testing apparatus, pore water pressure measuring device includes pore pressure gauge and flowmeter, pore pressure gauge is mounted on the side wall of infiltration testing apparatus, and flowmeter is mounted on water return pipeline；The utility model has the beneficial effects that：Measured data are more accurate, improve the precision to the gas permeability measurement of sample.
Description
Technical field
The utility model is related to pervasion test device technical fields, more specifically, the utility model is related to one kind three
Determine hydrohead test instrument.
Background technology
In order to measure infiltration coefficient or impermeability, to original state ground（Such as undisturbed soil, rock）Or Ground Treatment structure（Such as
The injected foundation of chemical stabilization, the diaphram wall etc. of mixing pile and various materials）It needs to carry out permeability test in situ, method
Typically using progress water injection test or packer permeability test after drilling.
The method of above-mentioned original position permeability test is using original state ground or Ground Treatment structure as impervious medium, drilling
The form factor for arranging test object afterwards provides head using natural water level or other pressuring methods, is aided with timing, metering etc. and sets
Standby, by the flow in the measuring unit time come calculation permeability coefficient k, this is the common knowledge of this field.Wherein, water injection test
To provide head using the depth displacement of ground and level of ground water, general level pressure is limited, the test object larger to thickness with
And non-uniform test object cannot be segmented carry out test assessment；Packer permeability test is segmented to drilling using embolism, by water
Pump provides pressure, a kind of method measured using water meter or flowmeter, but the experiment smaller to infiltration coefficient, because of water meter or
Flowmeter resolution ratio is relatively low and is difficult to survey reading flow, and the pulsating water pressure destructible test object structure that water pump generates, and causes
It is difficult to obtain stable flow.
Utility model content
For overcome the deficiencies in the prior art, the utility model provides one kind and three determines hydrohead test instrument, this three determines water
Head tester can carry out penetration testing to all kinds of samples such as undisturbed soil, rock, and measured data are accurately reliable, improve survey
The precision of examination.
Technical solution adopted by the utility model to solve its technical problems is：One kind three determines hydrohead test instrument, changes
It is into place：Including determining water head equipment, inlet pipeline, water return pipeline, pore water pressure measuring device and multiple permeability tests
Instrument；
The bottom of the infiltration testing apparatus is provided with water inlet, water outlet is provided at the top of infiltration testing apparatus, and ooze
The inside of saturating tester is for being packed into experimental sample；
The water head equipment of determining includes spill box, and the height residing for the spill box is more than the height of the infiltration testing apparatus
Degree；The inlet pipeline is connected between spill box and the water inlet of infiltration testing apparatus, for supplying water into infiltration testing apparatus；
The water return pipeline is connected on the water outlet of infiltration testing apparatus, for the water in infiltration testing apparatus to be discharged；
The pore water pressure measuring device includes pore pressure gauge and flowmeter, and the pore pressure gauge is mounted on
On the side wall of the infiltration testing apparatus, for being measured to the hydraulic pressure inside infiltration testing apparatus, the flowmeter is mounted on back
In water lines.
In such a configuration, the pore water pressure measuring device further includes data collector, which connects
It is connected on the pore pressure gauge, for acquiring the hydraulic pressure inside infiltration testing apparatus.
In such a configuration, described three to determine hydrohead test instrument further include bottom bracket, the infiltration testing apparatus
It is installed on bottom bracket with data collector.
In such a configuration, described three to determine hydrohead test instrument further include water storage tank and variable water pump, the storage
Water tank, variable water pump and spill box are connected by inlet pipeline, are promoted the water in water storage tank by variable water pump
To spill box；
In the outlet to water storage tank of the water return pipeline, the water for infiltration testing apparatus to be discharged is back to water storage tank
It is interior.
In such a configuration, in multiple infiltration testing apparatus, each infiltration testing apparatus vertically uniformly divides
Cloth three pore pressure gauges.
In such a configuration, the water head equipment of determining further includes column and buckle, and the spill box passes through buckle
It is fixed at the top of column.
In such a configuration, valve is installed on the inlet pipeline, which enters permeability test for controlling
Water inside instrument.
In such a configuration, the infiltration testing apparatus is cylindrical, inside by the first surge chamber, sample chamber and
Second surge chamber is constituted, and the water outlet is connected with the first surge chamber, and water inlet is connected with the second surge chamber, described
Pore pressure gauge is mounted on the inner wall of sample chamber.
In such a configuration, between first surge chamber and sample chamber, between sample chamber and the second surge chamber
It is provided with metallic plate, and is provided with multiple perforative through-holes on metallic plate.
In such a configuration, first surge chamber and the second surge chamber are both provided with coarse sand bed course.
The utility model has the beneficial effects that：Such the three of the utility model determine hydrohead test instrument, can be to various
Sample carries out the measurement of infiltration coefficient, and the scope of application is wider, while measured data are more accurate, improve and oozed to sample
The precision that saturating coefficient measures.
Description of the drawings
Fig. 1 is a kind of the three of the utility model structural schematic diagram for determining hydrohead test instrument.
Fig. 2 is the structural schematic diagram of a kind of the three of the utility model infiltration testing apparatus for determining hydrohead test instrument.
Specific implementation mode
The utility model is further illustrated with reference to the accompanying drawings and examples.
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations arrived involved in patent, not singly refer to component and directly connect, and referring to can be according to specific
Performance, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each skill in the utility model creation
Art feature, can be with combination of interactions under the premise of not conflicting conflict.
Shown in reference picture 1, Fig. 2, the utility model discloses one kind three and determines hydrohead test instrument, specifically, including determining water
Head device 10, inlet pipeline 20, water return pipeline 30, pore water pressure measuring device 40 and multiple infiltration testing apparatus 50；Described
The bottom of infiltration testing apparatus 50 is provided with water inlet 501, and the top of infiltration testing apparatus 50 is provided with water outlet 502, and permeates examination
The inside of instrument 50 is tested for being packed into experimental sample；The water head equipment 10 of determining includes spill box 101, column 102 and buckle, institute
The spill box 101 stated is fixed by snap at the top of column 102, and the height residing for spill box 101 is more than the infiltration testing apparatus
50 height；The inlet pipeline 20 is connected between spill box 101 and the water inlet 501 of infiltration testing apparatus 50, for
It supplies water in infiltration testing apparatus 50, valve 201 is installed on inlet pipeline 20, which enters infiltration testing apparatus for controlling
Water inside 50.The water return pipeline is connected on the water outlet 502 of infiltration testing apparatus 50, is used for infiltration testing apparatus 50
Interior water discharge；The pore water pressure measuring device 40 includes pore pressure gauge 401 and flowmeter 402, the pore water
Pressure gauge 401 is mounted on the side wall of the infiltration testing apparatus 50, for being measured to the hydraulic pressure inside infiltration testing apparatus 50,
The flowmeter 402 is mounted on water return pipeline 30.In the present embodiment, it in multiple infiltration testing apparatus 50, each oozes
Saturating tester 50 is vertically uniform-distribution with three pore pressure gauges 401.
In the above-described embodiment, the pore water pressure measuring device 40 further includes data collector 403, which adopts
Storage 403 is connected on the pore pressure gauge 401, for acquiring the hydraulic pressure inside infiltration testing apparatus 50；In addition, described
Three to determine hydrohead test instrument further include bottom bracket 60, the infiltration testing apparatus 50 and data collector 403 are installed in
On bottom bracket 60.Further, described three to determine hydrohead test instrument further include water storage tank 70 and variable water pump 80, described
Water storage tank 70, variable water pump 80 and spill box 101 are connected by inlet pipeline 20, by variable water pump 80 by water storage
Water in case 70 is promoted in spill box 101；In the outlet of the water return pipeline 30 to water storage tank 70, for examination will to be permeated
The water for testing the discharge of instrument 50 is back in water storage tank 70.
As shown in Fig. 2, for the infiltration testing apparatus 50, the utility model provides a specific embodiment, described
Infiltration testing apparatus 50 is cylindrical, inside be made of the first surge chamber 503, sample chamber 504 and the second surge chamber 505, institute
The water outlet 502 stated is connected with the first surge chamber 503, and water inlet 501 is connected with the second surge chamber 505, the hole
Water pressure gauge 401 is mounted on the inner wall of sample chamber 504；Between first surge chamber 503 and sample chamber 504, sample chamber
504 and second are both provided with metallic plate 506 between surge chamber 505, and multiple perforative through-holes are provided on metallic plate 506；Separately
Outside, first surge chamber 503 and the second surge chamber 505 are both provided with coarse sand bed course.
Pass through above-mentioned structure, it would be desirable to which the sample for carrying out penetration testing is put into infiltration testing apparatus 50, in the first buffering
Coarse sand is added in room 503 and the second surge chamber 505, forms coarse sand bed course；By variable water pump 80 by the water in water storage tank 70
Be promoted in spill box 101, spill box 101 is supplied water by inlet pipeline 20 into infiltration testing apparatus 50, valve 201 control into
The size of water；Water is flowed out by sample from water outlet 502, and is back in water storage tank 70 by water return pipeline 30, herein mistake
Cheng Zhong, pore pressure gauge 401 carry out the different places of infiltration testing apparatus 50 measurement of pressure, pass through the data that will be measured
It is transmitted to data collector 403, flowmeter 402 measures the water of reflux, by the way that two data are sent to computer
It is interior, by the infiltration coefficient that can be obtained sample after processing.Such the three of the utility model determine hydrohead test instrument, can be to each
The sample of kind carries out the measurement of infiltration coefficient, and the scope of application is wider, while measured data are more accurate, improve to sample
Gas permeability measurement precision.
It is to be illustrated to the preferable implementation of the utility model, but the utility model creation is not limited to institute above
Embodiment is stated, those skilled in the art can also make various be equal without departing from the spirit of the present invention
Deformation is replaced, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. one kind three determines hydrohead test instrument, it is characterised in that：Including determining water head equipment, inlet pipeline, water return pipeline, pore water
Pressure measuring device and multiple infiltration testing apparatus；
The bottom of the infiltration testing apparatus is provided with water inlet, water outlet is provided at the top of infiltration testing apparatus, and permeate examination
The inside of instrument is tested for being packed into experimental sample；
The water head equipment of determining includes spill box, and the height residing for the spill box is more than the height of the infiltration testing apparatus；
The inlet pipeline is connected between spill box and the water inlet of infiltration testing apparatus, for supplying water into infiltration testing apparatus；Institute
The water return pipeline stated is connected on the water outlet of infiltration testing apparatus, for the water in infiltration testing apparatus to be discharged；
The pore water pressure measuring device includes pore pressure gauge and flowmeter, and the pore pressure gauge is mounted on described
On the side wall of infiltration testing apparatus, for being measured to the hydraulic pressure inside infiltration testing apparatus, the flowmeter is mounted on return pipe
On the road.
2. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：The pore water pressure measures dress
It further includes data collector to set, which is connected on the pore pressure gauge, for acquiring infiltration testing apparatus
Internal hydraulic pressure.
3. according to claim 2 a kind of three determine hydrohead test instrument, it is characterised in that：Described three determine hydrohead test
Instrument further includes bottom bracket, and the infiltration testing apparatus and data collector are installed on bottom bracket.
4. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：Described three determine hydrohead test
Instrument further includes water storage tank and variable water pump, and the water storage tank, variable water pump and spill box are connected by inlet pipeline,
The water in water storage tank is promoted in spill box by variable water pump；
In the outlet to water storage tank of the water return pipeline, the water for infiltration testing apparatus to be discharged is back in water storage tank.
5. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：Multiple infiltration testing apparatus
In, each infiltration testing apparatus is vertically uniform-distribution with three pore pressure gauges.
6. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：The water head equipment of determining also wraps
Column and buckle are included, the spill box is fixed by snap at the top of column.
7. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：It is installed on the inlet pipeline
There is valve, which is used to control the water into inside infiltration testing apparatus.
8. according to claim 1 a kind of three determine hydrohead test instrument, it is characterised in that：The infiltration testing apparatus is in circle
Tubular, inside be made of the first surge chamber, sample chamber and the second surge chamber, the water outlet is connected with the first surge chamber
Logical, water inlet is connected with the second surge chamber, and the pore pressure gauge is mounted on the inner wall of sample chamber.
9. according to claim 8 a kind of three determine hydrohead test instrument, it is characterised in that：First surge chamber and examination
It is both provided with metallic plate between specimen chamber, between sample chamber and the second surge chamber, and is provided with multiple perforative through-holes on metallic plate.
10. according to claim 8 a kind of three determine hydrohead test instrument, it is characterised in that：First surge chamber and
Second surge chamber is both provided with coarse sand bed course.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920913.0U CN207751839U (en) | 2017-12-29 | 2017-12-29 | One kind three determines hydrohead test instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721920913.0U CN207751839U (en) | 2017-12-29 | 2017-12-29 | One kind three determines hydrohead test instrument |
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| Publication Number | Publication Date |
|---|---|
| CN207751839U true CN207751839U (en) | 2018-08-21 |
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| CN201721920913.0U Active CN207751839U (en) | 2017-12-29 | 2017-12-29 | One kind three determines hydrohead test instrument |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001101A (en) * | 2018-10-25 | 2018-12-14 | 中交（天津）生态环保设计研究院有限公司 | A kind of unified single more drawdown bailing test device and methods of pump |
-
2017
- 2017-12-29 CN CN201721920913.0U patent/CN207751839U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001101A (en) * | 2018-10-25 | 2018-12-14 | 中交（天津）生态环保设计研究院有限公司 | A kind of unified single more drawdown bailing test device and methods of pump |
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