CN114878229B - Groundwater surveying device and method based on static sounding technology - Google Patents
Groundwater surveying device and method based on static sounding technology Download PDFInfo
- Publication number
- CN114878229B CN114878229B CN202210442689.8A CN202210442689A CN114878229B CN 114878229 B CN114878229 B CN 114878229B CN 202210442689 A CN202210442689 A CN 202210442689A CN 114878229 B CN114878229 B CN 114878229B
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- water
- force transmission
- transmission column
- electromagnetic valve
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003673 groundwater Substances 0.000 title claims abstract description 17
- 230000003068 static effect Effects 0.000 title claims abstract description 14
- 238000005516 engineering process Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 230000005540 biological transmission Effects 0.000 claims abstract description 40
- 238000005070 sampling Methods 0.000 claims abstract description 28
- 239000011148 porous material Substances 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 6
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000012528 membrane Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a device and a method for surveying groundwater based on a static sounding technology, wherein the device comprises a cone head, a friction cylinder, a first outer sleeve, a second outer sleeve, a water sampling container and a cable, wherein the cone head is connected to the lower end of the friction cylinder; a force transmission column is arranged in the friction cylinder, a pressure sensing beam is arranged in the force transmission column, a strain gauge is arranged on the pressure sensing beam, and the lower end of the force transmission column is connected with the friction cylinder; the second outer sleeve is connected to the upper end of the force transmission column, and a hole pressure sensor and an electromagnetic valve are arranged in the second outer sleeve from bottom to top; the first outer sleeve is connected to the upper end of the second outer sleeve; the upper half part of the water sampling container is positioned in the first outer sleeve, and the lower half part of the water sampling container is positioned in the second outer sleeve and communicated with the water outlet of the electromagnetic valve; the cables are in two paths, are respectively connected with the hole pressure sensor and the electromagnetic valve, and are led out from the holes of the first outer sleeve. The pressure sensing beam is detachably connected with the force transmission column. The invention improves the efficiency and the speed of groundwater detection.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering investigation, and particularly relates to a device and a method for surveying groundwater.
Background
The static sounding technology is to press a sounding rod with a touch probe into a test soil layer by using a pressure device, and to test cone tip resistance, side wall friction resistance and the like of the soil by using a measuring system, so that certain basic physical and mechanical properties of the soil, such as deformation film quantity of the soil, allowable bearing capacity of the soil and the like, can be determined.
The aquifer and groundwater problems are particularly important in geotechnical engineering surveys, where the underground project involves aquifers, it is necessary to define the type of aquifer and determine the hydrogeological parameters. In the prior art, in order to obtain the parameter in engineering, a hydrological observation hole is required to be arranged independently or a traditional pore-pressure static cone penetration test probe is required to be used, but the drilling measurement process is complex, long in time consumption and high in cost, and the traditional pore-pressure static cone penetration test probe is high in cost and is not commonly used.
At present, most underground water sampling methods are used for sampling a monitoring well, but the method needs a large number of holes to be drilled, has high cost, is easy to disturb a water body, increases turbidity of the water sample, and causes inaccurate water quality detection results.
Disclosure of Invention
The invention aims to provide a device and a method for surveying groundwater based on a static sounding technology, which are used for solving the problem that a groundwater sampling method in the prior art is complex.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a device is surveyed to groundwater based on static cone penetration technique, includes conical head, friction section of thick bamboo, first outer sleeve, second outer sleeve, water sampling container, cable, wherein:
the cone head is connected to the lower end of the friction cylinder;
a force transmission column is arranged in the friction cylinder, a cavity is formed in the force transmission column, a pressure sensing beam is arranged in the cavity, the upper end and the lower end of the pressure sensing beam are respectively connected with the upper end and the lower end of the force transmission column, strain gauges are arranged on the pressure sensing beam, and the lower end of the force transmission column is connected with the friction cylinder;
the second outer sleeve is connected to the upper end of the force transmission column, a pore pressure sensor and an electromagnetic valve are arranged in the second outer sleeve from bottom to top, a first permeable stone is arranged at a water inlet of the pore pressure sensor, a water inlet and a water outlet are arranged at the electromagnetic valve, and a second permeable stone is arranged at the water inlet;
the first outer sleeve is connected to the upper end of the second outer sleeve, and a hole for the cable to pass through is formed in the upper end of the first outer sleeve;
the upper half part of the water sampling container is positioned in the first outer sleeve, and the lower half part of the water sampling container is positioned in the second outer sleeve and communicated with the water outlet of the electromagnetic valve;
the cables are in two paths, are respectively connected with the hole pressure sensor and the electromagnetic valve, and are led out from the holes of the first outer sleeve.
The pressure sensing beam is detachably connected with the force transmission column.
The electromagnetic valve is a normally closed electromagnetic valve and comprises a shell, an electromagnetic coil is arranged in the shell, a movable iron core spring is arranged in the center of the electromagnetic coil, the lower end of the movable iron core spring is fixed, the upper end of the movable iron core spring is connected with a movable ejector rod, the upper end of the movable ejector rod is connected with a piston, and a piston sealing element is arranged at the upper end of the piston; the upper end of the shell is provided with a water inlet and a water outlet which are communicated with the piston sealing element.
The water inlet is transversely arranged, and the water outlet is longitudinally arranged.
And a deformation membrane and a strain gauge are arranged in the pore pressure sensor.
The cone head is connected with the friction cylinder through a first thread, a second bulge with external threads is arranged at the top of the cone head, a threaded hole is formed in the bottom of the force transmission column, and the cone head is connected with the threaded hole of the force transmission column through the external threads of the second bulge.
The top of the force transmission column is provided with a threaded hole, the bottom of the second outer sleeve is provided with a first bulge, the first bulge is provided with external threads, and the second outer sleeve is connected with the threaded hole at the top of the force transmission column through threads.
The water sampling container is a disposable water sampling bag.
A first water-stop rubber ring is arranged between the lower part of the friction cylinder and the force transmission column, a second water-stop rubber ring is arranged between the upper part of the friction cylinder and the force transmission column, and a third water-stop rubber ring is arranged between the hole of the first outer sleeve and the cable.
A method of groundwater surveying comprising the steps of:
step a, the underground water survey device is penetrated to a designated depth, and then the penetration is stopped;
b, opening the electromagnetic valve to enable underground water to enter from a water inlet of the electromagnetic valve, then entering a water sampling container from a water outlet of the electromagnetic valve, and then closing the electromagnetic valve;
step c, in the water taking process of the step b, pore water pressure is measured by using a pore pressure sensor;
step d, retrieving the ground surface by the underground water surveying device, detaching the first outer sleeve, taking out the water sampling container, and sealing and storing;
and e, repeating the steps to sample at another depth.
The beneficial effects are that: compared with the prior art, the invention has the following advantages:
1. the invention solves the defect that the existing single-bridge and double-bridge probes cannot take water samples in China, and samples underground water in the penetration process of the static cone penetration probe, so that the invention can be used for detecting water quality, does not need to drill holes additionally, greatly saves cost, reduces workload and improves detection efficiency and speed.
2. The invention can utilize the pore-pressure static sounding sensor to ascertain the water level and the water head height of the aquifer, and has simple operation and quick test.
3. The underground water surveying device based on the static sounding technology has the advantages of simple structure, small volume, convenient processing and convenient carrying.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a device for measuring groundwater based on static sounding technique according to the present invention;
FIG. 2 is a schematic structural view of a solenoid valve;
fig. 3 is a schematic structural view of the pore pressure sensor.
Detailed Description
The invention is further explained below with reference to the drawings.
As shown in fig. 1, the invention relates to a ground water surveying device based on static sounding technology, which comprises a cone head 1, a friction cylinder 2, a first outer sleeve 16, a second outer sleeve 20, a water sampling container 14 and a cable 15, wherein:
the cone head 1 is connected to the lower end of the friction cylinder 2;
a force transmission column 7 is arranged in the friction cylinder 2, a cavity is arranged in the force transmission column 7, a pressure sensing beam 3 is arranged in the cavity, the upper end and the lower end of the pressure sensing beam 3 are respectively and detachably connected with the upper end and the lower end of the force transmission column 7, a strain gage 4 is arranged on the pressure sensing beam 3, and the lower end of the force transmission column 7 is connected with the friction cylinder 2;
the second outer sleeve 20 is connected to the upper end of the force transmission column 7, a pore pressure sensor 9 and an electromagnetic valve 11 are arranged in the second outer sleeve 20 from bottom to top, a first permeable stone 10 is arranged at a water inlet of the pore pressure sensor 9, a water inlet 12 and a water outlet 13 are arranged at the electromagnetic valve 11, and a second permeable stone 17 is arranged at the water inlet 12;
the first outer sleeve 16 is connected to the upper end of the second outer sleeve 20, and a hole for the cable 15 to pass through is formed in the upper end of the first outer sleeve 16;
the upper half part of the water sampling container 14 is positioned in the first outer sleeve 16, and the lower half part is positioned in the second outer sleeve 20 and communicated with the water outlet 13 of the electromagnetic valve 11;
the cable 15 is connected with the hole pressure sensor 9 and the electromagnetic valve 11 respectively in two paths, and is led out from the hole of the first outer sleeve 16.
As shown in fig. 2, the electromagnetic valve 11 is a normally closed electromagnetic valve and comprises a shell 11-6, an electromagnetic coil 11-5 is arranged in the shell 11-6, a movable iron core spring 11-4 is arranged in the center of the electromagnetic coil 11-5, the lower end of the movable iron core spring 11-4 is fixed, the upper end of the movable iron core spring is connected with a movable ejector rod 11-3, the upper end of the movable ejector rod 11-3 is connected with a piston 11-2, and a piston sealing element 11-1 is arranged at the upper end of the piston 11-2; the upper end of the shell 11-6 is provided with a water inlet 12 and a water outlet 13, the water inlet 12 is transversely arranged, the water outlet 13 is longitudinally arranged, and the water inlet 12 and the water outlet 13 are communicated with the piston sealing element 11-1.
As shown in fig. 3, a deformation membrane 9-1 and a strain gauge 9-2 are provided in the pore pressure sensor 9.
The conical head 1 is connected with the friction cylinder 2 through a first thread 6, a second bulge 18 with an external thread is arranged at the top of the conical head 1, a threaded hole is formed in the bottom of the force transmission column 7, and the conical head 1 is connected with the threaded hole of the force transmission column 7 through the external thread of the second bulge 18.
A threaded hole is formed in the top of the force transmission column 7, a first protrusion 8 is arranged at the bottom of the second outer sleeve 20, the first protrusion 8 is provided with external threads, and the second outer sleeve 20 is connected with the threaded hole in the top of the force transmission column 7 through threads.
The water sampling container 14 is a disposable water sampling bag, and after sampling, the disposable water sampling bag is taken out by unscrewing the first outer sleeve 16.
A first water-stop rubber ring 5 is arranged between the lower part of the friction cylinder 2 and the force transmission column 7, a second water-stop rubber ring 21 is arranged between the upper part of the friction cylinder 2 and the force transmission column 7, and a third water-stop rubber ring 22 is arranged between the hole of the first outer sleeve 16 and the cable 15.
The invention relates to a groundwater surveying method, which comprises the following steps:
step a, penetrating a groundwater survey device to a specified depth, and stopping the penetration;
step b, opening the electromagnetic valve 11 to enable underground water to enter from the water inlet 12 of the electromagnetic valve 11, then entering the water sampling container 14 from the water outlet 13 of the electromagnetic valve, and then closing the electromagnetic valve 11;
step c, in the water taking process of the step b, pore water pressure is measured by using a pore pressure sensor 9;
step d, retrieving the ground surface by the groundwater survey device, detaching the first outer sleeve 16, taking out the water sampling container 14, and hermetically storing;
and e, repeating the steps to sample at another depth.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (2)
1. The utility model provides a groundwater surveys device based on static sounding technique which characterized in that: including conical head (1), friction section of thick bamboo (2), first outer sleeve (16), second outer sleeve (20), water sampling container (14), cable (15), wherein:
the cone head (1) is connected to the lower end of the friction cylinder (2);
a force transmission column (7) is arranged in the friction cylinder (2), a cavity is formed in the force transmission column (7), a pressure sensing beam (3) is arranged in the cavity, the upper end and the lower end of the pressure sensing beam (3) are respectively connected with the upper end and the lower end of the force transmission column (7), a strain gauge (4) is arranged on the pressure sensing beam (3), and the lower end of the force transmission column (7) is connected with the friction cylinder (2);
the second outer sleeve (20) is connected to the upper end of the force transmission column (7), a pore pressure sensor (9) and an electromagnetic valve (11) are arranged in the second outer sleeve (20) from bottom to top, a first permeable stone (10) is arranged at a water inlet of the pore pressure sensor (9), a water inlet (12) and a water outlet (13) are arranged at the electromagnetic valve (11), and a second permeable stone (17) is arranged at the water inlet (12);
the first outer sleeve (16) is connected to the upper end of the second outer sleeve (20), and a hole for the cable (15) to penetrate is formed in the upper end of the first outer sleeve (16);
the upper half part of the water sampling container (14) is positioned in the first outer sleeve (16), and the lower half part of the water sampling container is positioned in the second outer sleeve (20) and is communicated with the water outlet (13) of the electromagnetic valve (11);
the cable (15) is in two paths, is respectively connected with the hole pressure sensor (9) and the electromagnetic valve (11), and is led out from the hole of the first outer sleeve (16);
the pressure sensing beam (3) is detachably connected with the force transmission column (7);
the electromagnetic valve (11) is a normally closed electromagnetic valve and comprises a shell (11-6), an electromagnetic coil (11-5) is arranged in the shell (11-6), a movable iron core spring (11-4) is arranged in the center of the electromagnetic coil (11-5), the lower end of the movable iron core spring (11-4) is fixed, the upper end of the movable iron core spring is connected with a movable ejector rod (11-3), the upper end of the movable ejector rod (11-3) is connected with a piston (11-2), and a piston sealing piece (11-1) is arranged at the upper end of the piston (11-2); the upper end of the shell (11-6) is provided with a water inlet (12) and a water outlet (13), and the water inlet (12) and the water outlet (13) are communicated with the piston sealing piece (11-1);
the water inlet (12) is transversely arranged, and the water outlet (13) is longitudinally arranged;
a deformation film (9-1) and a strain gauge (9-2) are arranged in the pore pressure sensor (9);
the cone head (1) is connected with the friction cylinder (2) through a first thread (6), a second bulge (18) with an external thread is arranged at the top of the cone head (1), a threaded hole is formed in the bottom of the force transmission column (7), and the cone head (1) is connected with the threaded hole of the force transmission column (7) through the external thread of the second bulge (18);
a threaded hole is formed in the top of the force transmission column (7), a first bulge (8) is formed in the bottom of the second outer sleeve (20), the first bulge (8) is provided with external threads, and the second outer sleeve (20) is connected with the threaded hole in the top of the force transmission column (7) through the threads;
the water sampling container (14) is a disposable water sampling bag;
a first water-stop rubber ring (5) is arranged between the lower part of the friction cylinder (2) and the force transmission column (7), a second water-stop rubber ring (21) is arranged between the upper part of the friction cylinder (2) and the force transmission column (7), and a third water-stop rubber ring (22) is arranged between the hole of the first outer sleeve (16) and the cable (15).
2. A method of groundwater surveying using the apparatus of claim 1, wherein: the method comprises the following steps:
step a, the underground water survey device is penetrated to a designated depth, and then the penetration is stopped;
step b, opening the electromagnetic valve (11) to enable underground water to enter from the water inlet (12) of the electromagnetic valve (11), then entering the water sampling container (14) from the water outlet (13) of the electromagnetic valve, and then closing the electromagnetic valve (11);
step c, in the water taking process of the step b, pore water pressure is measured by using a pore pressure sensor (9);
step d, retrieving the ground surface by the underground water surveying device, detaching the first outer sleeve (16), taking out the water sampling container (14), and sealing and storing;
and e, repeating the steps to sample at another depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442689.8A CN114878229B (en) | 2022-04-25 | 2022-04-25 | Groundwater surveying device and method based on static sounding technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210442689.8A CN114878229B (en) | 2022-04-25 | 2022-04-25 | Groundwater surveying device and method based on static sounding technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114878229A CN114878229A (en) | 2022-08-09 |
| CN114878229B true CN114878229B (en) | 2023-10-17 |
Family
ID=82671612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210442689.8A Active CN114878229B (en) | 2022-04-25 | 2022-04-25 | Groundwater surveying device and method based on static sounding technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114878229B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518107A (en) * | 2011-12-13 | 2012-06-27 | 东南大学 | Environmental geotechnical piezocone penetration test probe capable of extracting gas samples and gas sample extracting method |
| CN203431183U (en) * | 2013-05-30 | 2014-02-12 | 毛西润 | An electromagnetic control pressure self-adaption inlet and drainage valve |
| CN205656029U (en) * | 2016-03-30 | 2016-10-19 | 北京中地泓科环境科技有限公司 | Depthkeeping sampler in groundwater drilling |
| CN206346168U (en) * | 2016-12-30 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | It is a kind of quickly to take multilayer water installations by what static cone penetration equipment was pressed into |
| CN206346170U (en) * | 2016-12-30 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | A kind of quick water fetching device of static sounding |
| CN111809596A (en) * | 2020-08-13 | 2020-10-23 | 南京工业大学 | Fiber grating-based piezocone penetration test probe and piezocone penetration test method thereof |
-
2022
- 2022-04-25 CN CN202210442689.8A patent/CN114878229B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518107A (en) * | 2011-12-13 | 2012-06-27 | 东南大学 | Environmental geotechnical piezocone penetration test probe capable of extracting gas samples and gas sample extracting method |
| CN203431183U (en) * | 2013-05-30 | 2014-02-12 | 毛西润 | An electromagnetic control pressure self-adaption inlet and drainage valve |
| CN205656029U (en) * | 2016-03-30 | 2016-10-19 | 北京中地泓科环境科技有限公司 | Depthkeeping sampler in groundwater drilling |
| CN206346168U (en) * | 2016-12-30 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | It is a kind of quickly to take multilayer water installations by what static cone penetration equipment was pressed into |
| CN206346170U (en) * | 2016-12-30 | 2017-07-21 | 上海岩土工程勘察设计研究院有限公司 | A kind of quick water fetching device of static sounding |
| CN111809596A (en) * | 2020-08-13 | 2020-10-23 | 南京工业大学 | Fiber grating-based piezocone penetration test probe and piezocone penetration test method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114878229A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10816448B2 (en) | Device for measuring strength and strain softening parameters of saturated clay sample based on full-flow penetration | |
| CN111337408B (en) | Method for testing rock crack porosity by using low-field nuclear magnetic resonance equipment | |
| CN103174122B (en) | Lateral stress pore pressure probe used for testing soil static lateral pressure coefficient | |
| CN102518107B (en) | Environmental geotechnical piezocone penetration test probe capable of extracting gas samples and gas sample extracting method | |
| CN208888043U (en) | A kind of saturation clay probe intensity and strain softening parameter measuring apparatus based on full stream feeler inspection | |
| CN106644890A (en) | Device for measuring soil sample permeability coefficient in indoor soil engineering test | |
| CN201429486Y (en) | Probe type soil body pore space water pressure measuring meter | |
| CN104535421B (en) | Detecting instrument and method for performance of cross-linked polymer gel | |
| CN114481999B (en) | Deep sea self-contained static sounding probe and detection method thereof | |
| CN201901866U (en) | T-shaped contact detector applied to deep-sea seabed feature testing | |
| CN203361120U (en) | Pore pressure static sounding test device | |
| CN203224427U (en) | Coarse-grained soil permeability coefficient measuring device | |
| CN110208497A (en) | A kind of portable soil specific yield tester and test method | |
| CN205280545U (en) | Seepage tests sand post or earth pillar suitable for nuclear magnetic resonance analysis and imaging system | |
| CN108570978B (en) | Hollow side wall wiring type static cone penetration test equipment | |
| CN108678035B (en) | Annular sounding device for detecting side friction force in sinking process of cylindrical foundation | |
| CN114878229B (en) | Groundwater surveying device and method based on static sounding technology | |
| CN103276713B (en) | Environmental piezocone penetration test (CPTU) probe capable of evaluating permeability characteristic of saturated soil in site | |
| CN219015710U (en) | Groundwater surveys device based on static sounding technique | |
| CN202390823U (en) | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples | |
| CN205898732U (en) | But bluetooth formula soil moisture apparatus of layering survey | |
| CN107100214A (en) | Stake resistance simulation test device | |
| CN201340382Y (en) | Soil-water characteristic curve testing arrangement for cohesionless soil | |
| CN206321172U (en) | It is a kind of to be used to test drilling fluid mud cake intensity and the test device of thickness | |
| CN103410134B (en) | Conical probe for ocean under-consolidated soil pore water pressure testing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20220809 Assignee: Nanjing Kungong Technology Co.,Ltd. Assignor: NANJING University OF TECHNOLOGY Contract record no.: X2023980052396 Denomination of invention: A Groundwater Survey Device and Method Based on Static Penetration Testing Technology Granted publication date: 20231017 License type: Common License Record date: 20231215 |