CN104878735A - Soil osmotic coefficient in-situ testing device and testing method thereof - Google Patents
Soil osmotic coefficient in-situ testing device and testing method thereof Download PDFInfo
- Publication number
- CN104878735A CN104878735A CN201510192336.7A CN201510192336A CN104878735A CN 104878735 A CN104878735 A CN 104878735A CN 201510192336 A CN201510192336 A CN 201510192336A CN 104878735 A CN104878735 A CN 104878735A
- Authority
- CN
- China
- Prior art keywords
- test barrel
- control box
- water
- soil
- drive control
- 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.)
- Granted
Links
Abstract
The invention relates to the technical field of measurement, in particular to a soil osmotic coefficient in-situ testing device and testing method thereof. The testing device comprises a testing barrel and a driving control box, the surface of the testing barrel is provided with a water inlet hole, a water pump and a water pressure sensor are arranged in the testing barrel, a lifting mechanism is arranged in the driving control box, a traction line of the lifting mechanism is connected with the testing barrel fixedly, the driving control box controls the testing barrel up and down by the lifting mechanism, and the traction line comprises a water guide pipe, a sensing line and a bearing line. The sensing line is connected with the water pressure sensor, the water guide pipe is connected with the water pump, and the bearing line is fixedly connected with the testing barrel. The soil osmotic coefficient in-situ testing device has the advantages that the testing device can be used fittingly in any manholes in situ and can measure soil osmotic coefficient of assigned depth.
Description
Technical field
The present invention relates to field of measuring technique, particularly relate to soil layer transmission coefficient in-situ testing device and method of testing thereof.
Background technology
In geotechnical investigation field, often need to carry out a series of in-situ test, understand the hydrogeological characteristic in floor area.Wherein transmission coefficient in-situ test is more common a kind of in situ test understanding hydrogeological characteristic.Means of testing conventional is at present pumping test, water injection test, and so these two kinds of methods can only coordinate rig to use, and cannot carry out the test job of soil body penetration characteristic in particular range.Because the work of soil body osmotic coefficient mensuration is carried out in indoor, relate to the quality of sampling quality, and have ignored too many fringe conditions, cause result of the test often not fully up to expectations.There is no convenient, fast instrument at present, according to engineering design needs, the test job of soil body osmotic coefficient in specific region can be carried out, facilitate ground designer to test the original position transmission coefficient of the specific soil body targetedly.Therefore the soil layer transmission coefficient in-situ testing device being convenient to each engineers and technicians' onsite application seems particularly important.
Summary of the invention
The object of the invention is according to above-mentioned the deficiencies in the prior art, provide soil layer transmission coefficient in-situ testing device and method of testing thereof, device comprises drive unit and is driven the test barrel of rising and falling by drive unit, can record the soil body osmotic coefficient of designated depth in any inspecting hole in the venue.
The object of the invention realizes being completed by following technical scheme:
A kind of soil layer transmission coefficient in-situ testing device, it is characterized in that: described testing arrangement comprises test barrel and drive control box, described test barrel surface offers inlet opening, inside is provided with suction pump and hydraulic pressure sensor, elevating mechanism is provided with in described drive control box, draught line and the described test barrel of described elevating mechanism are connected and fixed, described drive control box controls rising and falling of described test barrel by described elevating mechanism, institute's draught line is by aqueduct, sense line and load-bearing line are formed, wherein said sense line is connected with described hydraulic pressure sensor, described aqueduct is connected with described suction pump, described load-bearing line and described test barrel are connected and fixed.
Top and the bottom of described test barrel are respectively arranged with water-stop sheet, and described water-stop sheet is fixedly connected with a swing pinion respectively, and described swing pinion connects driving by described drive control box, and described swing pinion drives described water-stop sheet to rotate and launches or rotate to draw in.
The center of described test barrel is provided with hard tube, and described draught line is arranged in the inside of described hard tube.
The vertical direction of described test barrel and described hard tube is respectively arranged with expansion coupling.
Relate to the soil layer transmission coefficient home position testing method of above-mentioned soil layer transmission coefficient in-situ testing device, it is characterized in that: described method of testing at least comprises the following steps:
By the driving of elevating mechanism described in described drive control box, described test barrel is put into the soil depth scope of specifying, length and the described soil body depth bounds of described test barrel match;
Drive described swing pinion to rotate by described drive control box, described swing pinion drives described water-stop sheet to launch and inserts among the described soil body;
Started the underground water of the soil body of described suction pump suction designated depth by described drive control box, and measured the force value of the water yield in described test barrel by described hydraulic pressure sensor.
The soil depth scope measured required by soil layer transmission coefficient in-situ test adjusts the expansion coupling in described test barrel, makes the length of described test barrel identical with described soil depth scope.
Advantage of the present invention is: any inspecting hole in place can be coordinated to use; The soil body osmotic coefficient of designated depth can be recorded; There is the advantages such as structure is simple, workable, easy to carry, practical, novel in design.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the filter structure schematic diagram of test barrel periphery in the present invention;
Fig. 3 is the filter structure schematic diagram in the present invention bottom test barrel.
Detailed description of the invention
Feature of the present invention and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technician of the same trade:
As Figure 1-3, mark 1-25 in figure to be respectively: drive control box 1, test barrel 2, battery 3, power interface 4, time display screen 5, hydraulic pressure display screen 6, coiling 7, drive motors 8, control button 9, shell 10, filter screen 11, suction pump 12, hydraulic pressure sensor 13, aqueduct 14, sense line 15, swing pinion 16, water-stop sheet 17, hard tube 18, draught line 19, screw ring 20, upper surface 21, gutter 22, bayonet lock 23, expansion coupling 24, load-bearing line 25.
Embodiment: as shown in Figure 1, the soil layer transmission coefficient in-situ testing device in the present embodiment comprises drive control box 1, test barrel 2, wherein drive control box 1 connection control test barrel 2.Be provided with battery 3 in drive control box 1, battery charges by power interface 4, if on-the-spot electricity consumption is convenient, this power interface 4 also directly can connect AC power and use.Drive control box 1 upper surface is distributed with time display screen 5, hydraulic pressure display screen 6 and control button 9.
Test barrel 2 inner hub location is fixedly installed structure hard tube 18, and the bottom of test barrel 2 is provided with Miniature water-pumping pump 12 and hydraulic pressure sensor 13.The elevating mechanism be made up of draught line 19, coiling 7 and drive motors 8 is provided with in the shell 10 of drive control box 1, wherein draught line 19 is wrapped on coiling 7, its one end and coiling 7 fix, the other end is connected with test barrel 2, and one end of coiling 7 and the drive shaft of drive motors 8 are connected to a fixed.Rotated by the driving coiling 7 of drive motors 8, the draught line 19 be wound on coiling 7 carries out convergent-divergent, thus the test barrel 2 controlling to be connected with draught line 19 is elevated.
Draught line 19 is connected with the hard tube 18 of test barrel 2 by termination screw ring 20, thus ensure that the globality of device.Draught line 19 is made up of aqueduct 14, sense line 15, load-bearing line 25 and the flexible pipe that is sleeved on its outside, aqueduct 14 and sense line 15 are connected to Miniature water-pumping pump 12 bottom test barrel 2 and hydraulic pressure sensor 13 respectively by the structure hard tube 18 in test barrel 2, and load-bearing line 25 fixes with the bottom surface of test barrel 2, to ensure the stability of test barrel 2 in lifting process.The other end of aqueduct 14 stretches out in the shell 10 outer formation gutter 22 of drive control box 1, after the gaging hole in place is measured, when next gaging hole is measured, is discharged by underground water by gutter 22 from test barrel 3.
The top of test barrel 2 and bottom are respectively arranged with swing pinion 16, and swing pinion 16 has connecting line to be connected in draught line 19 on sense line 15, and swing pinion 16 is by drive control box 1 connection control.The periphery of swing pinion 16 is fixedly connected with water-stop sheet 17, forms between the two and is connected, and when realizing the rotation of swing pinion 16, water-stop sheet 17 rotary expansion or rotation are drawn in.When reality uses, by the control button 9 on drive control box 1, control the rotation direction of swing pinion 16, and then regulate the retracted position of water-stop sheet 17.When test barrel 2 arrives to predetermined depth, by control button 9, drive control box 1 drives swing pinion 16 rotation that water-stop sheet 17 is launched, in incision soil at both sides, prevent the upper and lower current of gaging hole from entering test barrel 2, by Miniature water-pumping pump 12, extract the original gaging hole water between two water-stop sheets 17.Subsequently by hydraulic pressure sensor 13, the seepage discharge of underground water in special time in monitoring and test cylinder 2, and then try to achieve the transmission coefficient of the soil body within the scope of predetermined depth.
The outer wall of test barrel 2 has water inlet and extract underground water in soil layer for suction pump 12.Peripheral and the suction pump of test barrel 2, upper surface 21 place, hydraulic pressure sensor structural area are respectively arranged with filter screen 11 and filter screen 21, and both are all to prevent in process of the test, and it is inner that gaging hole soil particle enters test barrel 2.
Cylindrical shell and inner hard tube 18 surface distributed thereof of test barrel 2 have some bayonet locks 23, and surrounding filter screen relevant position is distributed with expansion coupling 24, for adjusting once the test specification of complete penetration testing test.Bayonet lock 23 spacing can be determined according to industry use habit.Such as, when soil body MTD is 1m-2m, by bayonet lock 23 and expansion coupling 24 by the length adjustment of test barrel 2 to 1m, make single test only record soil body osmotic coefficient in 1m-2m depth bounds; In like manner, when soil body MTD is 1m-3m or 1m-4m, corresponding adjustment bayonet lock 23 and expansion coupling 24 make 2m or 3m needed for the length adjustment of test barrel 2 to test specification.
The present embodiment step when concrete test is as follows:
1, the battery 3 of drive control box 1 is full of electricity, or power interface 4 is directly connected on the alternating-current power supply in place, then instrument entirety is removed by any gaging hole in place.
2, the connecting screw ring 20 tightening draught line 19 and hard tube 18 makes drive control box 1 and test barrel 2 be connected to a fixed.Adjusted the length of test barrel 2 by bayonet lock 23 and expansion coupling 24, the soil body depth bounds of specifying when its length and test is matched.By control button 9, regulate swing pinion 16, make water-stop sheet 17 be in closed rounding state.
3, test barrel 2 is placed in gaging hole, by control button 9, by it down to predetermined depth.By control button 9, regulate swing pinion 16, water-stop sheet 17 is launched and is cut in the surrounding soil body.Now measuring cylinder 3 is in the soil body environment that is separated out by two pieces of water-stop sheets 17, and the depth bounds of this soil body environment is the soil body depth bounds needed for test.Start suction pump 16, take out the original gaging hole water in optical tests cylinder 2, the gaging hole water on this in gaging hole.
4, suction pump 16 works on, opening time display screen 5 and pressure display screen 6, by newly oozing out the force value of the water yield in hydraulic pressure sensor 13 real time record test barrel 2.Underground water is full of, pressure display screen 6 numerical stability, off-test in cylinder 2 to be tested.Technician calculates the soil layer transmission coefficient in this depth bounds by the force value and time value of newly oozing out the water yield
5, by control button 9, water-stop sheet 17 is closed, testing arrangement is put to next degree of depth, repeat step 3,4, continue test.
Claims (6)
1. a soil layer transmission coefficient in-situ testing device, it is characterized in that: described testing arrangement comprises test barrel and drive control box, described test barrel surface offers inlet opening, inside is provided with suction pump and hydraulic pressure sensor, elevating mechanism is provided with in described drive control box, draught line and the described test barrel of described elevating mechanism are connected and fixed, described drive control box controls rising and falling of described test barrel by described elevating mechanism, institute's draught line is by aqueduct, sense line and load-bearing line are formed, wherein said sense line is connected with described hydraulic pressure sensor, described aqueduct is connected with described suction pump, described load-bearing line and described test barrel are connected and fixed.
2. a kind of soil layer transmission coefficient in-situ testing device according to claim 1, it is characterized in that: top and the bottom of described test barrel are respectively arranged with water-stop sheet, described water-stop sheet is fixedly connected with a swing pinion respectively, described swing pinion connects driving by described drive control box, and described swing pinion drives described water-stop sheet to rotate and launches or rotate to draw in.
3. a kind of soil layer transmission coefficient in-situ testing device according to claim 1, it is characterized in that: the center of described test barrel is provided with hard tube, described draught line is arranged in the inside of described hard tube.
4. a kind of soil layer transmission coefficient in-situ testing device according to claim 3, is characterized in that: the vertical direction of described test barrel and described hard tube is respectively arranged with expansion coupling.
5. relate to a soil layer transmission coefficient home position testing method for the soil layer transmission coefficient in-situ testing device described in the claims 1-4, it is characterized in that: described method of testing at least comprises the following steps:
By the driving of elevating mechanism described in described drive control box, described test barrel is put into the soil depth scope of specifying, length and the described soil body depth bounds of described test barrel match;
Drive described swing pinion to rotate by described drive control box, described swing pinion drives described water-stop sheet to launch and inserts among the described soil body;
Started the underground water of the soil body of described suction pump suction designated depth by described drive control box, and measured the force value of the water yield in described test barrel by described hydraulic pressure sensor.
6. a kind of soil layer transmission coefficient home position testing method according to claim 5, it is characterized in that: the soil depth scope measured required by soil layer transmission coefficient in-situ test adjusts the expansion coupling in described test barrel, make the length of described test barrel identical with described soil depth scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192336.7A CN104878735B (en) | 2015-04-21 | 2015-04-21 | Soil osmotic coefficient in-situ testing device and testing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192336.7A CN104878735B (en) | 2015-04-21 | 2015-04-21 | Soil osmotic coefficient in-situ testing device and testing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104878735A true CN104878735A (en) | 2015-09-02 |
| CN104878735B CN104878735B (en) | 2017-02-01 |
Family
ID=53946397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510192336.7A Active CN104878735B (en) | 2015-04-21 | 2015-04-21 | Soil osmotic coefficient in-situ testing device and testing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104878735B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680483A (en) * | 2018-05-23 | 2018-10-19 | 中南大学 | A kind of soil in-situ apparatus for measuring permeability coefficient and test method |
| CN109709018A (en) * | 2019-01-22 | 2019-05-03 | 南京大学 | A kind of tunnel rich water fault belt infiltration coefficient in-site detecting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005155077A (en) * | 2003-11-21 | 2005-06-16 | Takenaka Komuten Co Ltd | Vertical directional water permeability testing device of original position ground |
| CN102128775A (en) * | 2010-12-29 | 2011-07-20 | 河海大学 | Detachable constant head permeability coefficient tester |
| CN102252952A (en) * | 2011-07-20 | 2011-11-23 | 东南大学 | Device for determining soil layer in-situ permeability coefficient |
| CN103344542A (en) * | 2013-07-11 | 2013-10-09 | 北京交通大学 | Device for measuring permeability coefficient by variable head method |
| CN103792172A (en) * | 2014-01-15 | 2014-05-14 | 山东农业大学 | Pressurized variable water head permeameter |
| JP2014114686A (en) * | 2013-03-04 | 2014-06-26 | Kyokado Engineering Co Ltd | Soil improvement method |
| CN204589978U (en) * | 2015-04-21 | 2015-08-26 | 中铁上海设计院集团有限公司 | Soil layer transmission coefficient in-situ testing device |
-
2015
- 2015-04-21 CN CN201510192336.7A patent/CN104878735B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005155077A (en) * | 2003-11-21 | 2005-06-16 | Takenaka Komuten Co Ltd | Vertical directional water permeability testing device of original position ground |
| CN102128775A (en) * | 2010-12-29 | 2011-07-20 | 河海大学 | Detachable constant head permeability coefficient tester |
| CN102252952A (en) * | 2011-07-20 | 2011-11-23 | 东南大学 | Device for determining soil layer in-situ permeability coefficient |
| JP2014114686A (en) * | 2013-03-04 | 2014-06-26 | Kyokado Engineering Co Ltd | Soil improvement method |
| CN103344542A (en) * | 2013-07-11 | 2013-10-09 | 北京交通大学 | Device for measuring permeability coefficient by variable head method |
| CN103792172A (en) * | 2014-01-15 | 2014-05-14 | 山东农业大学 | Pressurized variable water head permeameter |
| CN204589978U (en) * | 2015-04-21 | 2015-08-26 | 中铁上海设计院集团有限公司 | Soil layer transmission coefficient in-situ testing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680483A (en) * | 2018-05-23 | 2018-10-19 | 中南大学 | A kind of soil in-situ apparatus for measuring permeability coefficient and test method |
| CN109709018A (en) * | 2019-01-22 | 2019-05-03 | 南京大学 | A kind of tunnel rich water fault belt infiltration coefficient in-site detecting device |
| CN109709018B (en) * | 2019-01-22 | 2020-08-14 | 南京大学 | Tunnel rich water fault broken zone permeability coefficient in-situ measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104878735B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071943B (en) | Centrifugal experimental simulation testing device for surface subsidence induced by city shield tunnel construction | |
| CN102031771B (en) | Deep static cone penetration test method for geotechnical engineering | |
| CN103217512A (en) | Experimental device with physical landslide model | |
| CN110984960B (en) | Top pressure type layered water pumping and injecting test system and method for same-diameter drilling holes | |
| US10677039B1 (en) | Borescope for drilled shaft inspection | |
| CN203904966U (en) | Rapid water sampling device pressed with cone penetration device | |
| CN109631842A (en) | A kind of full-automatic inclination measurement system and its monitoring method | |
| CN204924522U (en) | A moment of torsion detection device for revolving dig rig unit head | |
| CN104878735A (en) | Soil osmotic coefficient in-situ testing device and testing method thereof | |
| CN209570119U (en) | A kind of novel caisson inner diameter measurement tool | |
| CN114061649B (en) | Automatic quick on-line monitoring equipment for underground water quality and water level synchronization | |
| CN204589978U (en) | Soil layer transmission coefficient in-situ testing device | |
| CN204781021U (en) | Automatic visual equipment of control detection bored concrete pile | |
| CN204903300U (en) | Testing arrangement is cuted in drilling of soil body normal position | |
| CN204594983U (en) | With the shield structure ground adaptability tester of native cabin simulation | |
| CN102183230B (en) | An anchoring device of a datum mark in a boring | |
| CN109868852B (en) | Pile length and pile splicing quality detection device and method for prestressed concrete hollow pile | |
| KR101579515B1 (en) | depth measurement device | |
| CN104153353B (en) | A kind of method utilizing laser level determination bored pile absolute altitude | |
| CN203551036U (en) | Underground water level measuring device | |
| CN204286291U (en) | A kind of multipoint displacement meter for tunnel wall rock deformation monitoring | |
| CN205720113U (en) | Deep rock mass comprehensive variable orifice footpath gaging hole robot | |
| CN203642955U (en) | Inspection well detection device based on computer control | |
| CN113970631A (en) | Concrete structure nondestructive testing equipment testing platform and method | |
| CN209962568U (en) | Shield vertical shaft vertical jacking model test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |