CN209858564U - A recoverable sensor for in situ experiment - Google Patents
A recoverable sensor for in situ experiment Download PDFInfo
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- CN209858564U CN209858564U CN201920438969.5U CN201920438969U CN209858564U CN 209858564 U CN209858564 U CN 209858564U CN 201920438969 U CN201920438969 U CN 201920438969U CN 209858564 U CN209858564 U CN 209858564U
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- sensor
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- connecting pipe
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Abstract
The utility model discloses a recoverable sensor for normal position experiment, sensor including main part and the inside setting of main part, the top integrated into one piece of main part has most advanced, the bottom of main part is provided with the connecting pipe, the surface of connecting pipe is provided with the draw-in groove, most advanced top is provided with sharp top, furtherly, the main part is cylindrical structure, the material of main part is acrylic acid, furtherly, most advanced is 60 degrees toper structures, this kind of utility model relates to a rationally, convenient to use utilizes the steel guide cone to be used for establishing the guide hole, has two purposes: 1 to prevent the sensor from being damaged when penetrating hard, dry soil; 2 it allows the sensor with protective film to be placed under the ground water level, so that the sensor can keep saturated state when water is discharged; the utility model discloses a simple and convenient has improved the success rate of extracting the recovery, is fit for extensively promoting.
Description
Technical Field
The utility model relates to a technical field that the sensor was buried underground, in particular to a recoverable sensor for normal position experiment.
Background
In situ testing is often the best means of determining soil or geotechnical engineering properties and in some cases is the only way to achieve effective results. In-situ tests are used to determine various parameters of the earth or rock mass, such as deformation characteristics (modulus), shear wave velocity, pore water pressure, and the like.
At present, various sensors need to be buried underground when in-situ experiments are carried out, but no good method exists for recycling the sensors after the use is finished.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a recoverable sensor for in-situ experiments, which can effectively solve the problems of the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a recoverable sensor for in situ experiment, includes the inside sensor that sets up of main part and main part, the top integrated into one piece of main part has most advanced, the bottom of main part is provided with the connecting pipe, the surface of connecting pipe is provided with the draw-in groove, most advanced top is provided with the spire.
Further, the main body is of a cylindrical structure, and the material of the main body is acrylic acid.
Further, the tip is a 60 degree conical structure.
Further, the pointed top is of an iron structure.
Furthermore, the connecting pipe (102) is a cylindrical structure integrally formed with the main body (1), and the material of the connecting pipe (102) is acrylic acid.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model relates to a rationally, convenient to use utilizes the steel guide cone to be used for establishing the guide hole, has two purposes:
(1) preventing the sensor from being damaged when penetrating hard, dry soil;
(2) the sensor with the protective film is allowed to be placed below the underground water level, so that the sensor is kept in a saturated state when water is discharged;
the utility model discloses a simple and convenient has improved the success rate of extracting the recovery, is fit for extensively promoting.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a main body; 101. a tip; 1011. a pointed top; 102. a connecting pipe; 1021. A card slot; 2. a sensor.
Detailed Description
Technical means for realizing the utility model; authoring features; the purpose and function are easily understood and appreciated, and the present invention will be further described with reference to the following detailed description.
As shown in fig. 1, a retrievable sensor for in-situ experiments comprises a main body 1 and a sensor 2 arranged inside the main body 1, wherein a tip 101 is integrally formed at the top end of the main body 1, a connecting pipe 102 is arranged at the bottom end of the main body 1, a clamping groove 1021 is arranged on the surface of the connecting pipe 102, and a pointed top 1011 is arranged at the top end of the tip 101.
Further, the main body 1 is a cylindrical structure, and the material of the main body 1 is acrylic acid.
Further, the tip 101 is a 60 degree conical structure.
Further, the pointed top 1011 is of a ferrous structure.
Further, the connection tube 102 is a cylindrical structure integrally formed with the main body 1, and the material of the connection tube 102 is acrylic acid.
It should be noted that, the utility model relates to a recoverable sensor for in situ test, in the use, sensor 2 is wrapped up by 1 shell of columniform acrylic acid main part, pointed end 101 has 60 degrees toper closed angles, pointed end 101 top is iron system closed top 1011, can protect acrylic acid main part 1 to avoid the influence of the soil body, the sensor is connected for bulldozing with the push rod, before installing sensor 2, at first usually push away the steel guide cone that the diameter is greater than acrylic acid main part 1 to the degree of depth that is just less than Ground Water Level (GWL), then remove it, the nominal diameter of steel guide cone will be greater than the nominal diameter of push rod and sensor, it is suitable about 0.6 centimetre to be greater than the push rod diameter.
If the soil is still very hard before it reaches the soft liquefiable layer, a guide cone of smaller diameter (same diameter as the push rod) can be used to guide the hole below the GWL; an oversized guide cone should not be pushed into place close to the liquefiable layer, as this would create a gap around the push rod, from which water can easily escape during dynamic loading and subsequent pore pressure generation.
Whether the steel wire rope is tied on the clamping groove 1021 can be selected according to whether the sensor 2 needs to be taken out or not, when the sensor 2 needs to be taken out, the push rod is pulled to enable the push rod to be separated from the sensor 2 after the sensor 2 is in place, the push rod is pulled to be about 2 ten centimeters away from the sensor, the sensor 2 and the push rod are pulled out together after the test is completed, the steel wire rope is tied on the hydraulic cylinder when the push rod is pulled out, and the pulling-out success rate is greatly improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A recoverable sensor for in situ experiments, sensor (2) that is used for in situ experiments, includes main part (1) and the inside setting of main part (1), the top integrated into one piece of main part (1) has most advanced (101), the bottom of main part (1) is provided with connecting pipe (102), its characterized in that: the surface of the connecting pipe (102) is provided with a clamping groove (1021), and the top end of the pointed end (101) is provided with a pointed top part (1011).
2. The retrievable sensor for in situ experiments, according to claim 1, wherein: the main body (1) is of a cylindrical structure, and the main body (1) is made of acrylic acid.
3. The retrievable sensor for in situ experiments, according to claim 1, wherein: the tip (101) is of a 60-degree conical structure.
4. The retrievable sensor for in situ experiments, according to claim 1, wherein: the pointed top part (1011) is of a ferrous structure.
5. The retrievable sensor for in situ experiments, according to claim 1, wherein: the connecting pipe (102) is of a cylindrical structure integrally formed with the main body (1), and the connecting pipe (102) is made of acrylic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920438969.5U CN209858564U (en) | 2019-04-02 | 2019-04-02 | A recoverable sensor for in situ experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920438969.5U CN209858564U (en) | 2019-04-02 | 2019-04-02 | A recoverable sensor for in situ experiment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858564U true CN209858564U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920438969.5U Active CN209858564U (en) | 2019-04-02 | 2019-04-02 | A recoverable sensor for in situ experiment |
Country Status (1)
| Country | Link |
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| CN (1) | CN209858564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
-
2019
- 2019-04-02 CN CN201920438969.5U patent/CN209858564U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
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