CN202390823U - Environmental geotechnical piezocone penetration test cone capable of sampling gas samples - Google Patents
Environmental geotechnical piezocone penetration test cone capable of sampling gas samples Download PDFInfo
- Publication number
- CN202390823U CN202390823U CN2011205184874U CN201120518487U CN202390823U CN 202390823 U CN202390823 U CN 202390823U CN 2011205184874 U CN2011205184874 U CN 2011205184874U CN 201120518487 U CN201120518487 U CN 201120518487U CN 202390823 U CN202390823 U CN 202390823U
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- China
- Prior art keywords
- probe
- feeler lever
- cone
- hole
- static sounding
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- Withdrawn - After Issue
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Abstract
The utility model relates to an environmental geotechnical piezocone penetration test cone capable of sampling gas samples. A seal cover (15) is arranged at the top of the cone. A cable (1) penetrates through the seal cover. An upper half of the cone is a hollow cylindrical probe (3), and a pore pressure sensor (2), a small hose pump (4) and a sampling container (5) are disposed in the probe. The cone is provided with a middle probe (7) with a polypropylene porous filter, the middle probe with the polypropylene porous filter is connected with the hollow cylindrical probe (3) through upper O-shaped rings (6). On the lower portion of the cone, a threaded open copper connector (8) is connected with the middle probe. A three-component geophone (9) is arranged below the threaded open copper connector. An inclinometer (10), a side-wall friction cylinder (11), a temperature sensor (12), a pore pressure filter ring (13) and a conical tip (14) are disposed below the three-component geophone (9). The environmental geotechnical piezocone penetration test cone has the advantages of in-situ operability, quickness, accuracy, economy and the like, and is a powerful sampling tool for environmental geotechnical CPTU (cone penetration test).
Description
Technical field
The utility model relates to a kind of environment ground hole of desirable gas appearance and presses static sounding probe, belongs to the static sounding device that can gather ground therapeutic method to keep the adverse qi flowing downward appearance in the soil layer in geotechnical engineering and the field of environment engineering.
Background technology
The static sounding technology is meant the sounding rod indentation test soil layer that utilizes pressure apparatus will have contact probe; Through the native static point resistance of measurement system test, sidewall frictional resistance etc.; Can confirm some basic physico mechanical characteristic of soil, like the modulus of deformation of soil, the allowable bearing of soil etc.The static sounding technology is the history in existing more than 80 year so far.The extensive use static sounding has partly or entirely replaced probing and the sampling in the engineering investigation in the world.China at first succeeded in developing the electric measuring type static sounding and is applied to prospecting in nineteen sixty-five.Along with the fast development of sensor technology, a lot of new static sounding technology occurred in recent years, these technology can obtain pore water pressure, seismic wave, pollutant proterties, temperature even the image of soil layer quickly and accurately.It is widely used in the environmental geotechnical field abroad.In the static sounding technology abroad, the multi-functional probe that can be used for sample collecting has had very big development, and has adopted vacuum technique development a cover gas production appearance probe.China starts to walk than later in the research of novel static sounding sampler, and domestic widely used single doube bridge static sounding does not have the function of sampling at present, and therefore development is highly significant in the environmental geotechnical sampling technique.
Summary of the invention
Technical problem:What the utility model will solve is the defective that exists to the quiet spy technology of domestic existing single doube bridge, proposes a kind of environment hole that can be used for the desirable gas appearance in environmental geotechnical field and presses static sounding probe.
Technical scheme:The hole of the desirable gas appearance of the utility model presses the top of static sounding probe to be provided with seal cover, and cable passes from seal cover; The upper semisection of this probe is the hollow cylinder feeler lever, is provided with pore pressure sensor, small-sized peristaltic pump and sampling container in the feeler lever inside of this section; At the interlude of this probe, be provided with the feeler lever of band polypropylene porous filtering net, connecting band polypropylene porous filtering net feeler lever and hollow cylinder feeler lever be to go up O shape to encircle; Bottom at probe; Adopt copper threaded openings connector to link to each other with middle feeler lever, it has 3-component earthquake detector, is inclinometer below 3-component earthquake detector; The sidewall friction tube is positioned at the below of inclinometer; Middle part at the sidewall friction tube is provided with temperature pick up, below the sidewall friction tube, is connected with the circular cone probe, and hole press filtration ring is positioned at the junction of sidewall friction tube and circular cone probe.
The cone angle of described circular cone probe is 60 °, and the awl basal cross section is long-pending to be 15 cm
2, sidewall friction tube surface area 300 cm
2
Described hollow cylinder feeler lever external diameter is 43.7 mm.
Length 250 mm of the feeler lever of described band polypropylene porous filtering net.
The sampling container volume should be 80 ml, but and has an opening of one-way intake.
Beneficial effect:The utility model has solved the defective that the quiet spy of domestic existing single doube bridge technology can not be got gas appearance, can be in unsaturated soil in the maximum depth of penetration designated depth take out gas appearance.And because the setting of pore pressure sensor makes sampling process monitoredly to arrive.
Description of drawings
Fig. 1 is the component arrangement figure of the utility model;
Wherein have: cable 1, pore pressure sensor 2, hollow cylinder feeler lever 3, small-sized peristaltic pump 4; Sampling container 5, O shape ring 6, the feeler lever 7 of band polypropylene porous filtering net, copper threaded openings connector 8; 3-component earthquake detector 9, inclinometer 10, sidewall friction tube 11, temperature pick up 12; Hole press filtration ring 13, circular cone probe 14, seal cover 15.
The specific embodiment
The environment hole of the desirable gas appearance of the utility model presses static sounding probe to comprise: cable 1, pore pressure passes
Sensor 2, hollow cylinder feeler lever 3, small-sized peristaltic pump 4, sampling container 5; O shape ring 6, the feeler lever 7 of band polypropylene porous filtering net, copper threaded openings connector 8,3-component earthquake detector 9; Inclinometer 10, sidewall friction tube 11, temperature pick up 12; Hole press filtration ring 13, circular cone probe 14, seal cover 15.
Function of this probe is integrated conventional static sounding, seismic wave static sounding (can survey end resistance, frictional resistance, inclination, hole presses and seismic wave) and the function of getting ground therapeutic method to keep the adverse qi flowing downward appearance, the further perfect content of multi-functional CPTU measuring technology.
The concrete operation method that extracts gas appearance is:
A. with the degree of depth of feeler lever injection appointment, stop injection then, open pore pressure sensor 2;
B. cover seal cover 15, open small-sized peristaltic pump 4, hollow cylinder feeler lever 3 and sampling container 5 are evacuated, gas appearance can be got under action of pressure in the sampling container 5;
C. with proposing withdrawal on the hollow cylinder feeler lever 3; Hollow cylinder feeler lever 3 is separated with bottom band polypropylene porous filtering net feeler lever 7; Band polypropylene porous filtering net feeler lever 7 is exposed in the underground soil layer; Gas permeation polypropylene porous filtering net in the hole gets in the feeler lever, and under action of pressure, gets into hollow cylinder feeler lever 3 inside, and is 5 collections of sampling container;
D. read the reading of pore pressure sensor 2, when sensor reading no longer changed, the collection of gas stopped, and sampler is fetched the face of land;
E. take off band polypropylene porous filtering net feeler lever 7, hollow cylinder feeler lever 3 inner sampling containers 5 are taken out and preserve, then cleaning equipment;
F. sampling finishes, and can repeat the sampling that said process carries out another degree of depth.
Claims (5)
1. static sounding probe is pressed in the hole of a desirable gas appearance, it is characterized in that be provided with seal cover (15) at the top of this probe, cable (1) passes from seal cover (15); The upper semisection of this probe is hollow cylinder feeler lever (3), is provided with pore pressure sensor (2), small-sized peristaltic pump (4) and sampling container (5) in the feeler lever inside of this section; At the interlude of this probe, be provided with the feeler lever (7) of band polypropylene porous filtering net, connecting band polypropylene porous filtering net feeler lever (7) and hollow cylinder feeler lever (3) be to go up O shape to encircle (6); Bottom at probe; Adopt copper threaded openings connector (8) to link to each other with middle feeler lever (7); It has 3-component earthquake detector (9); In the below of 3-component earthquake detector (9) is inclinometer (10), and sidewall friction tube (11) is positioned at the below of inclinometer (10), is provided with temperature pick up (12) at the middle part of sidewall friction tube (11); Be connected with circular cone probe (14) in the below of sidewall friction tube (11), hole press filtration ring (13) is positioned at the junction of sidewall friction tube (11) and circular cone probe (14).
2. static sounding probe is pressed in the hole of desirable gas appearance according to claim 1, it is characterized in that the cone angle of described circular cone probe (14) is 60 °, and the awl basal cross section is long-pending to be 15 cm
2, sidewall friction tube surface area 300 cm
2
3. static sounding probe is pressed in the hole of desirable gas appearance according to claim 1, it is characterized in that described hollow cylinder feeler lever (3) external diameter is 43.7 mm.
4. static sounding probe is pressed in the hole of desirable gas appearance according to claim 1, it is characterized in that length 250 mm of the feeler lever (7) of described band polypropylene porous filtering net.
5. static sounding probe is pressed in the hole of desirable gas appearance according to claim 1, it is characterized in that sampling container (5) volume should be 80 ml, but and has an opening of one-way intake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205184874U CN202390823U (en) | 2011-12-13 | 2011-12-13 | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205184874U CN202390823U (en) | 2011-12-13 | 2011-12-13 | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202390823U true CN202390823U (en) | 2012-08-22 |
Family
ID=46665759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205184874U Withdrawn - After Issue CN202390823U (en) | 2011-12-13 | 2011-12-13 | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202390823U (en) |
Cited By (4)
| 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 |
| CN102900063A (en) * | 2012-10-30 | 2013-01-30 | 东南大学 | Dynamic pore-pressure static sounding probe for detecting sludge |
| CN103255757A (en) * | 2013-06-03 | 2013-08-21 | 东南大学 | Energy environment static sounding probe capable of measuring deep soil temperatures |
| CN110658328A (en) * | 2019-11-01 | 2020-01-07 | 中国科学院武汉岩土力学研究所 | Portable in-situ gas content measuring device and method for shallow gas-containing stratum |
-
2011
- 2011-12-13 CN CN2011205184874U patent/CN202390823U/en not_active Withdrawn - After Issue
Cited By (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 |
| CN102900063A (en) * | 2012-10-30 | 2013-01-30 | 东南大学 | Dynamic pore-pressure static sounding probe for detecting sludge |
| CN102900063B (en) * | 2012-10-30 | 2014-12-17 | 东南大学 | Dynamic pore-pressure static sounding probe for detecting sludge |
| CN103255757A (en) * | 2013-06-03 | 2013-08-21 | 东南大学 | Energy environment static sounding probe capable of measuring deep soil temperatures |
| CN110658328A (en) * | 2019-11-01 | 2020-01-07 | 中国科学院武汉岩土力学研究所 | Portable in-situ gas content measuring device and method for shallow gas-containing stratum |
| CN110658328B (en) * | 2019-11-01 | 2023-09-15 | 中国科学院武汉岩土力学研究所 | Portable in-situ gas content measuring device and method for shallow gas-containing stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |