CN108827698B - A rock soil sample sampling device for geotechnical engineering reconnaissance - Google Patents
A rock soil sample sampling device for geotechnical engineering reconnaissance Download PDFInfo
- Publication number
- CN108827698B CN108827698B CN201810970098.1A CN201810970098A CN108827698B CN 108827698 B CN108827698 B CN 108827698B CN 201810970098 A CN201810970098 A CN 201810970098A CN 108827698 B CN108827698 B CN 108827698B
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- Prior art keywords
- circular
- straight rod
- soil sample
- rock
- ring body
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- 239000002689 soil Substances 0.000 title claims abstract description 48
- 238000005070 sampling Methods 0.000 title claims abstract description 36
- 239000011435 rock Substances 0.000 title claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000011835 investigation Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding 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
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- 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
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth 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 rock and soil sample sampling device, which comprises a circular straight rod, wherein two circular slices with the interval distance being the length of a rock and soil core to be taken are connected to the rod wall of the circular straight rod through fixing rods respectively, the diameter of each circular slice is consistent with the diameter of the rock and soil core to be taken, and the circular slices are positioned on the same side of the circular straight rod; the soil sample grabbing mechanism comprises a semicircular ring body and a fixed connection part connected with the semicircular ring body, the semicircular ring body is rotatably arranged on the circular straight rod, and the fixed connection part is connected with an opening and closing operation part. According to the invention, the disturbance of the soil sample is reduced, so that the original soil sample is closer to the objective state under the natural condition, and various indexes in the geotechnical test, especially mechanical indexes, are more accurate, thereby providing reliable geological parameter basis for design.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering investigation, in particular to a geotechnical sample sampling device for geotechnical engineering investigation.
Background
In geotechnical engineering investigation of various industries, cohesive soil is basically collected by a core pipe, the length of each time is not more than 2 meters, and after a soil sample is flushed into a sample groove, 20cm of the soil sample is intercepted and subjected to geotechnical test analysis every 1-1.5 meters according to the standard sampling requirement by manpower.
At present, the rock and soil sample is taken by workers, tools such as a knife are used for taking more than 20cm on a rock and soil core, then the rock and soil sample is taken up by hands and then is put on an iron sampling sample skin, and the redundant part of the rock and soil sample is cut off according to the length of the iron sampling sample skin, so that the rock and soil sample is just 20cm long.
The rock and soil sample sampling method has low efficiency and poor accuracy, and is used for dipping the soil sample by hands. Most importantly, the sampling method can increase the disturbance of the soil sample, so that the obtained undisturbed soil sample has a certain phase difference with the objective state under the natural condition, and various indexes in the geotechnical test, especially mechanical indexes, are inaccurate, and the reliable geological parameter basis is provided for design to a certain extent.
Disclosure of Invention
The invention aims at overcoming the technical defects in the prior art and provides a rock and soil sample sampling device for geotechnical engineering investigation.
The technical scheme adopted for realizing the purpose of the invention is as follows:
The utility model provides a rock soil sample sampling device for geotechnical engineering reconnaissance, includes a circular straight-bar, connect two circular sections of interval distance for the length of the rock soil core that is to be got on the pole wall of circular straight-bar respectively through the dead lever, the diameter of circular section is unanimous with the diameter of the rock soil core that is to be got, circular section is located the same side of circular straight-bar; the soil sample grabbing mechanism comprises a semicircular ring body and a fixed connection part connected with the semicircular ring body, the semicircular ring body is rotatably arranged on the circular straight rod, and the fixed connection part is connected with an opening and closing operation part.
A straight rod connecting part is formed at the position between the semicircular ring body and the fixed connecting part, and a connecting hole is formed on the straight rod connecting part.
The fixed connection part is welded with the opening and closing operation part.
The opening and closing operation parts are semicircular arc plates, and a circular body can be formed after the two opening and closing operation parts are folded.
And a magnet for fixing the sampling skin is arranged on the inner wall surface of the semicircular ring body.
The invention reduces the disturbance of the soil sample, enables the original soil sample to be closer to the objective state under the natural condition, and enables various indexes in the geotechnical test, especially the mechanical indexes, to be more accurate, thereby providing reliable geological parameter basis for design.
Drawings
FIG. 1 is a schematic view of a structure of a geotechnical sampling device for geotechnical engineering investigation in an open state;
FIG. 2 is a schematic side view of a geotechnical sampling device for geotechnical engineering investigation in an open state;
FIG. 3 is a schematic view of a structure of a geotechnical sampling device for geotechnical engineering investigation in a use state;
FIG. 4 is a schematic side view of a geotechnical sampling device for geotechnical engineering investigation in use;
FIG. 5 is a schematic diagram of the connection of a circular slice to a circular rod;
FIG. 6 is a schematic view of the structure of the soil sample grabbing mechanism;
fig. 7 is a schematic structural view of the opening and closing operation portion.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-7, a geotechnical sampling device for geotechnical engineering investigation, comprising:
The circular straight rod 4 is characterized in that two circular slices 1 with the interval distance being the length of a rock-soil core to be taken are connected to the rod wall of the circular straight rod through fixing rods 7 respectively, the diameter of each circular slice is consistent with the diameter of the rock-soil core to be taken, and the circular slices are positioned on the same side of the circular straight rod; the soil sample grabbing mechanism comprises a semicircular ring body 6 and a fixed connection part 9 connected with the semicircular ring body, the semicircular ring body is rotatably arranged on the circular straight rod, and the fixed connection part 9 is connected with an opening and closing operation part 5.
Wherein a straight rod connecting part2 is formed at the position between the semicircular ring body 6 and the fixed connecting part 9, a connecting hole 8 is formed on the straight rod connecting part, the round straight rod 4 passes through the connecting hole 8 to form rotatable connection with a plurality of groups of soil sample grabbing mechanisms, and the plurality of groups of soil sample grabbing mechanisms are staggered for a certain distance.
In the present invention, the circular straight rod 4 may be sleeved with a torsion spring (not shown), and two ends of the torsion spring may contact with inner sides of two opposite semicircular rings respectively, so that the semicircular ring body 6 of the soil sample grabbing mechanism may be kept in an open state in a free state by using the torsion spring, and of course, the circular straight rod may not be installed, and may not be kept in an open state in a free state, which is not particularly limited.
The fixed connection part is welded with the opening and closing operation part, and a section of arc-shaped part is formed on the surface of the fixed connection part connected with the opening and closing operation part, as shown in fig. 6, so as to be in contact and matched connection with the opening and closing operation part. The fixed rod 7 is welded with the round straight rod.
The opening and closing operation parts are semicircular arc plates, and a circular body can be formed after the two opening and closing operation parts are folded. The length of the opening and closing operation part is smaller than that of the round straight rod, so that the pressing operation part is formed when sampling is performed on the two near end sides of the round straight rod, and the pressing operation is performed on the round straight rod of the holding column when sampling is performed conveniently, so that sampling is performed.
Further, in the present invention, a magnet (not shown) may be further installed on the inner wall surface of the semicircular body 6, and the magnet may be adhesively fixed in a plurality of spaced grooves 3 prefabricated on the inner wall surface of the semicircular body, and after being installed in the grooves 3, the magnet is not higher than the inner wall surface of the semicircular body, so as to maintain the original arc surface, and mainly used for fixing a thin sampling skin (not shown) in an adsorption manner, that is, fixing the sampling skin on the inner wall surface of the semicircular body, or fixing the sampling skin in other manners, such as glue or welding, or the like, without limitation, and the sampling skin is a soft iron skin in a rectangular shape, wherein the sampling skin is two, is respectively fixed on two sides, has a length consistent with the length of the rock core to be sampled, and a width consistent with or slightly smaller than the diameter of the semicircular body 6, and is fixed on the inner wall surface of the semicircular body 6, so that the spaces between the semicircular bodies at the same side are closed, and the sampling skin is convenient to prevent the rock core from breaking during sampling.
The using method of the device is as follows:
Opening the device, putting the sampling skin into the opening device, enabling the magnet to absorb the sampling skin, and installing the sampling skin on the inner side of the soil sample grabbing mechanism. The device is placed at a position to be sampled on a rock-soil core, at the moment, the circular straight rods are pressed downwards by two hands, so that two circular slices cut off soil samples, then the two sections of opening and closing operation parts at the top are held to be combined, under the action of a lever principle, the lower soil sample grabbing mechanism is also combined, and the cut soil samples are just grabbed, so that the cut soil samples can be lifted out of the soil sample groove.
The invention has the following advantages:
1. improving the operating efficiency of sampling
2. The disturbance of the soil sample is reduced, the original soil sample is more similar to the objective state under the natural condition, and various indexes in the geotechnical test, especially mechanical indexes, are more accurate, so that reliable geological parameter basis is provided for design.
3. The hands of the sampling workers are liberated from the muddy water, and the construction environment is improved.
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 (3)
1. The rock and soil sample sampling device for geotechnical engineering investigation is characterized by comprising a circular straight rod, wherein two circular slices with the interval distance being the length of a rock and soil core to be taken are connected to the rod wall of the circular straight rod through fixing rods respectively, the diameter of each circular slice is consistent with the diameter of the rock and soil core to be taken, and the circular slices are positioned on the same side of the circular straight rod; a plurality of groups of soil sample grabbing mechanisms are arranged on the round straight rod at intervals between the round slices, each soil sample grabbing mechanism comprises a semicircular ring body and a fixed connecting part connected with the semicircular ring body, the semicircular ring body is rotatably arranged on the round straight rod, and the fixed connecting parts are connected with an opening and closing operation part; the opening and closing operation parts are semicircular arc plates, and a circular body can be formed after the two opening and closing operation parts are folded; and a magnet for fixing the sampling skin is arranged on the inner wall surface of the semicircular ring body.
2. The geotechnical sampling device for geotechnical engineering investigation according to claim 1, wherein a straight rod connecting part is formed at a position between the semicircular ring body and the fixed connecting part, and a connecting hole is formed on the straight rod connecting part.
3. The geotechnical sampling device for geotechnical engineering investigation according to claim 1, wherein the fixed connection portion is welded with the open-close operation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970098.1A CN108827698B (en) | 2018-08-24 | 2018-08-24 | A rock soil sample sampling device for geotechnical engineering reconnaissance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970098.1A CN108827698B (en) | 2018-08-24 | 2018-08-24 | A rock soil sample sampling device for geotechnical engineering reconnaissance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108827698A CN108827698A (en) | 2018-11-16 |
| CN108827698B true CN108827698B (en) | 2024-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810970098.1A Active CN108827698B (en) | 2018-08-24 | 2018-08-24 | A rock soil sample sampling device for geotechnical engineering reconnaissance |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111044325B (en) * | 2019-12-24 | 2022-05-27 | 江苏格林勒斯检测科技有限公司 | Sampling system for laboratory soil pollutant concentration detection and analysis |
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| CN201885945U (en) * | 2010-11-29 | 2011-06-29 | 昆明理工大学 | Simple instrument for testing density of fine grained soil |
| CN102235944A (en) * | 2010-04-21 | 2011-11-09 | 中国科学院沈阳应用生态研究所 | Device and method for extracting undisturbed soil |
| CN106053123A (en) * | 2016-07-12 | 2016-10-26 | 河南中医学院 | Adjustable sampler |
| CN208765988U (en) * | 2018-08-24 | 2019-04-19 | 天津市水利勘测设计院 | A kind of ground sample sampler for geotechnical engineering investigation |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB715901A (en) * | 1951-12-03 | 1954-09-22 | Frank Walmsley | Improvements relating to core drills |
| JP3044529B2 (en) * | 1996-07-05 | 2000-05-22 | 千尋海洋技術株式会社 | Water area mud sampling method and apparatus |
| CN1280621C (en) * | 2004-11-22 | 2006-10-18 | 西北农林科技大学 | Support rotation type undisturbed soil sampler |
| RU2306543C1 (en) * | 2006-04-03 | 2007-09-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Челябинский государственный агроинженерный университет" | Sampler |
| CN101655009B (en) * | 2009-07-23 | 2012-08-15 | 西安科技大学 | Method for manufacturing annular test-piece from cylindrical rock-soil material sample |
| CN201653741U (en) * | 2010-04-21 | 2010-11-24 | 中国科学院沈阳应用生态研究所 | A device for extracting undisturbed soil |
| JP5967648B2 (en) * | 2012-08-27 | 2016-08-10 | 一般財団法人電力中央研究所 | Double pipe type geological sampling device and geological sampling device set in soft ground |
| CN204359551U (en) * | 2015-01-23 | 2015-05-27 | 山东科技大学 | A kind of three-dimensional orientation sampler for Soft rock |
| GB2538986A (en) * | 2015-06-02 | 2016-12-07 | Marine Electrical Consulting Ltd | Method and apparatus for adaptive motion compensation |
| CN205205802U (en) * | 2015-12-17 | 2016-05-04 | 正业勘测设计集团有限公司 | Novel engineering geology reconnaissance sample device |
| CN105527172B (en) * | 2016-01-01 | 2018-05-11 | 三峡大学 | A kind of device and assay method for measuring ground cylinder sample Shear Strength Index |
| CN107036864B (en) * | 2017-04-28 | 2019-08-02 | 山东科技大学 | A kind of water-saving rock or concrete cylindrical sample producing device |
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- 2018-08-24 CN CN201810970098.1A patent/CN108827698B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235944A (en) * | 2010-04-21 | 2011-11-09 | 中国科学院沈阳应用生态研究所 | Device and method for extracting undisturbed soil |
| CN201885945U (en) * | 2010-11-29 | 2011-06-29 | 昆明理工大学 | Simple instrument for testing density of fine grained soil |
| CN106053123A (en) * | 2016-07-12 | 2016-10-26 | 河南中医学院 | Adjustable sampler |
| CN208765988U (en) * | 2018-08-24 | 2019-04-19 | 天津市水利勘测设计院 | A kind of ground sample sampler for geotechnical engineering investigation |
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| CN108827698A (en) | 2018-11-16 |
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Country or region after: China Address after: 300204 No. 217 Racecourse Road, Tianjin, Hexi District Applicant after: Tianjin Water Planning Survey and Design Co.,Ltd. Address before: 300204 No. 217 Racecourse Road, Tianjin, Hexi District Applicant before: TIANJIN WATER RESOURCES SURVEY AND DESIGN INSTITUTE Country or region before: China |
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