CN102912781A - Loose sand cutting ring sampling method - Google Patents
Loose sand cutting ring sampling method Download PDFInfo
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- CN102912781A CN102912781A CN201210453790XA CN201210453790A CN102912781A CN 102912781 A CN102912781 A CN 102912781A CN 201210453790X A CN201210453790X A CN 201210453790XA CN 201210453790 A CN201210453790 A CN 201210453790A CN 102912781 A CN102912781 A CN 102912781A
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- cutting ring
- sample
- sand
- soil
- cutting
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- 238000005520 cutting process Methods 0.000 title claims abstract description 138
- 239000004576 sand Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005070 sampling Methods 0.000 title claims abstract description 28
- 239000002689 soil Substances 0.000 claims abstract description 57
- 238000002360 preparation method Methods 0.000 claims abstract description 6
- 229940099259 vaseline Drugs 0.000 claims abstract description 5
- 239000005357 flat glass Substances 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000000151 deposition Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract 4
- 238000003825 pressing Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000013138 pruning Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention belongs to the technical field of building construction, and relates to a loose sandy soil cutting ring sampling method, which comprises the steps of firstly selecting a cutting ring to cut a sample, firstly coating a thin layer of vaseline on the inner wall of the cutting ring, downwards placing a cutting edge on a soil sample, vertically pressing the cutting ring downwards, cutting the soil sample along the outer side of the cutting ring by using a soil dressing cutter, pressing the edge until the soil sample is higher than the cutting ring, leveling the soil sample at the upper end of the cutting ring by using a wire saw or the soil dressing cutter, and wiping off the outer wall of the cutting ring; covering the upper surface of the cutting ring along the lower port of the cutting ring by using glass sheets in sequence; after the glass sheet is covered, the glass sheet is obliquely inserted into the position right below the cutting ring by using a supporting plate, and a certain distance is reserved between the supporting plate and the cutting ring in the inserting process; the cutting ring is reversed by using the supporting plate, and the glass sheet is fixed by hand in the reversing process, so that a sand sample does not leak along the lower port of the cutting ring; the reversed soil sample is cut flat by a wire saw or a soil repairing cutter, so that the preparation of the original sand soil sample is finished, and the soil sample is completely undisturbed; the method has the advantages of simple overall process, simple operation, strong applicability, environmental friendliness, complete sampling and wide application range.
Description
Technical field:
The invention belongs to technical field of building construction, relate to a kind of method, particularly a kind of loosening sand cutting ring sampling method that adopt cutting ring to get undisturbed soil in the ground foundation engineering.
Background technology:
Ground and foundation bearing capacity are the guarantees of building stability.Before building are built, need place yet to be built general condition of engineering geology is reconnoitred, analyze the foundation soil physical and mechanical property and whether be fit to bear foundation load, the achievement of prospecting is mainly derived from soil test; The general mode of probing that adopts gathers different depth place ground sample during prospecting, send geotechnological laboratory to analyze; In order to obtain to greatest extent the Different Strata rock and soil properties, generally get original state ground sample and analyze, usually utilize core cutter method to get original state ground sample and send lab analysis.The detection that foundation is finished groundwork earthen backfill degree of compaction and density also needs to take a sample with core cutter method, detection sampling when no matter being the drill sampling of phase of exploration or final acceptance of construction, how utilizing cutting ring to obtain as far as possible original state ground sample is the key of analysis of experiments success or failure.The core cutter method sampling is simple because of its device, easy to operately become the prefered method that soil test prepares undisturbed soil sample, its basic skills is: when getting original state ground sample by requirement of engineering, the leveling two ends, the cutting ring inwall is coated with skim vaseline, and the edge of a knife is to being placed down on the ground sample, with the cutting ring vertical depression, the limit flanging is cut, stretch out cutting ring top to soil sample till; The remaining soil in two ends of pruning makes soil sample flush with cutting ring lower port plane; Each foundation relevant design and detection the standard all sampling of regulation core cutter method are only applicable to cohesive soil, be not suitable for sand, especially the loosening sand sample is produced, and tracing it to its cause mainly is because the rear sand of cutting ring sampling, especially loosening sand easily glides along cutting ring mouth inwall, causes the disturbance of soil sample.At present, available data all unmatchful sand especially loosening sand carry out the explanation of undisturbed sampling.
Summary of the invention:
The object of the invention is to overcome the shortcoming that prior art exists, do not destroying sand, especially under the prerequisite of loosening sand original traits, provide a kind of simple to operate, what applicability was strong utilizes cutting ring to sand, especially the loosening sand method of taking a sample.
To achieve these goals, the present invention realizes that the processing step of loosening sand cutting ring sampling comprises:
(1), select first cutting ring to cut sample, at first be coated with skim vaseline at the cutting ring inwall, blade is to being placed down on the soil sample, with the cutting ring vertical depression, and with repairing native cutter along cutting ring outside cutting soil sample, the limit flanging is cut to soil sample and is exceeded cutting ring, adopts keyhole saw or repaiies native cutter leveling cutting ring upper end soil sample, cleans the cutting ring outer wall;
The sand sample spills along the cutting ring lower port when (2), be covered in above the cutting ring along the cutting ring lower port in order with sheet glass, avoiding the soil sample counter-rotating;
(3), after sheet glass builds, utilize the supporting plate oblique cutting to enter under the cutting ring, the certain distance interval is arranged between supporting plate and the cutting ring in the insertion process, guarantee in the supporting plate insertion process that the soil sample proterties is not by disturbance in the cutting ring;
(4), utilize supporting plate that cutting ring is reversed, with hand sheet glass is fixed in the Umklapp process, the sand sample is not spilt along the cutting ring lower port;
(5), utilize keyhole saw or the soil sample of repairing after native cutter will reverse is scabbled, the complete undisturbed of soil sample is finished in so far original state sand sample preparation.
The instrument that loosening sand cutting ring sampling method of the present invention uses comprises cutting ring, sheet glass, supporting plate, repaiies native cutter or keyhole saw; Wherein cutting ring is that the main container of depositing is produced and transported to original state sand sample, and it is less to soil disturbance that cutting ring upper end edge guarantees that cutting ring is pressed in the soil body process, and sand proterties to greatest extent maintains the original state; Repairing native cutter or keyhole saw scabbles for the sand sample that will exceed the cutting ring port after cutting ring is pressed into the original state sand; Sheet glass covers the cutting ring lower port can guarantee that sand sample when counter-rotating sand sample does not spill along the cutting ring lower port; Cutting ring is pressed into the rear supporting plate oblique cutting and enters under the cutting ring, can keep to greatest extent sand sample proterties in the cutting ring; Described cutting ring is common instrument in the foundation sampling, and internal diameter is 6-8cm, high 2-5.4cm, wall thickness is 1.5-2.2mm, and the cutting ring upper end has blade, and is less to the disturbance of sand sample during sampling, the original traits that can keep to greatest extent sand in the sampling process, especially loosening sand.
The present invention compared with prior art utilizes the device of conventional core cutter method sampling to realize the preparation of undisturbed soil sample under not disturbance original state sand proterties, the especially prerequisite of loosening sand proterties, for follow-up soil test lays the foundation; Its overall craft is simple, and is simple to operate, and applicability is strong, environmental friendliness, and it is complete to take a sample, applied range.
Description of drawings:
Structural principle schematic diagram when Fig. 1 is cutting ring incision soil sample of the present invention.
Fig. 2 is that sheet glass of the present invention is covered in the cutting ring structural principle schematic diagram in when upper end.
Structural principle schematic diagram when Fig. 3 is supporting plate incision of the present invention.
Fig. 4 is the structural principle schematic diagram after the soil sample counter-rotating of the present invention.
Fig. 5 is the structural principle schematic diagram after the preparation of soil sample of the present invention is finished.
The specific embodiment:
Below in conjunction with accompanying drawing and by embodiment the present invention is described in further detail.
Embodiment:
The loosening sand cutting ring sampling method that present embodiment provides comprises cutting ring 1, edge 2, sheet glass 3, supporting plate 4, repaiies native cutter or keyhole saw 5; Cutting ring 1 upper end has edge 2, and cutting ring 1 is the main device of the method, and cutting ring upper end edge 2 can reduce cutting ring and be pressed in the sand body process the disturbance of sand, and sand proterties to greatest extent maintains the original state; Repair the sand sample that native cutter or keyhole saw 5 will exceed the cutting ring port and scabble, less to the disturbance of original state sand proterties; Sheet glass 3 covers cutting ring 1 lower end, and soil sample does not spill along the cutting ring lower port in the time of can guaranteeing the counter-rotating of sand sample; Cutting ring 1 is pressed into rear supporting plate 4 oblique cuttings and enters under the cutting ring, can keep to greatest extent the proterties of cutting ring 1 interior sand sample not by disturbance; Described cutting ring 1 is the test sampling common tool, and internal diameter is 6-8cm, and high 2-5.4cm, wall thickness are 1.5-2.2mm, and the cutting ring upper end has blade 2, and is less to the disturbance of sand sample during sampling, can keep to greatest extent the original traits of sand in the sampling process; Described sheet glass 3 is common sheet glass, and its large I is determined according to actual conditions, all standing cutting ring 1 lower port being advisable; Described supporting plate 4 can adopt spade or plate cutter, is advisable under can oblique cutting entering cutting ring 1, keeps to greatest extent cutting ring 1 interior soil sample proterties not by disturbance; Described native cutter or the keyhole saw 5 repaiied can scabble being higher than cutting ring port soil sample after cutting ring 1 counter-rotating, is beneficial to the complete of soil sample.
The loosening sand cutting ring sampling craft step of present embodiment comprises:
When (1), cutting the loosening sand sample according to test requirements document with cutting ring 1, at first be coated with skim vaseline at cutting ring 1 inwall, blade 2 is to being placed down on the sand sample, with cutting ring 1 vertical depression, and with cutting native cutter along cutting ring outside cutting soil sample, the limit flanging is cut to soil sample and is exceeded cutting ring 1, adopts keyhole saw or repaiies native cutter 5 leveling cutting ring lower end soil samples, cleans the cutting ring outer wall;
The sand sample spills along cutting ring 1 lower port when (2), be covered in above the cutting ring 1 along cutting ring 1 lower port according to a definite sequence with sheet glass 3, avoiding the soil sample counter-rotating;
(3), after sheet glass 3 builds, utilize spade or plate cutter (supporting plate 4) oblique cutting to enter under the cutting ring 1, supporting plate 4 interval cutting rings 1 certain distance in the insertion process guarantees that cutting ring 1 interior sand sample proterties is not by disturbance in supporting plate 4 insertion process;
(4), utilize supporting plate 4 with cutting ring counter-rotating, note in the Umklapp process with hand that sheet glass 3 is fixingly, guarantee that the sand sample does not spill along cutting ring 1 lower port;
(5), utilize keyhole saw or the soil sample of repairing after native cutter 5 will reverse is scabbled, the complete undisturbed of soil sample is finished in so far original state sand sample preparation fully.
Claims (2)
1. loosening sand cutting ring sampling method is characterized in that the processing step of realizing the sampling of loosening sand cutting ring comprises:
(1), select first cutting ring to cut sample, at first be coated with skim vaseline at the cutting ring inwall, blade is to being placed down on the soil sample, with the cutting ring vertical depression, and with repairing native cutter along cutting ring outside cutting soil sample, the limit flanging is cut to soil sample and is exceeded cutting ring, adopts keyhole saw or repaiies native cutter leveling cutting ring upper end soil sample, cleans the cutting ring outer wall;
The sand sample spills along the cutting ring lower port when (2), be covered in above the cutting ring along the cutting ring lower port in order with sheet glass, avoiding the soil sample counter-rotating;
(3), after sheet glass builds, utilize the supporting plate oblique cutting to enter under the cutting ring, the certain distance interval is arranged between supporting plate and the cutting ring in the insertion process, guarantee in the supporting plate insertion process that the soil sample proterties is not by disturbance in the cutting ring;
(4), utilize supporting plate that cutting ring is reversed, with hand sheet glass is fixed in the Umklapp process, the sand sample is not spilt along the cutting ring lower port;
(5), utilize keyhole saw or the soil sample of repairing after native cutter will reverse is scabbled, the complete undisturbed of soil sample is finished in so far original state sand sample preparation.
2. loosening sand cutting ring sampling method according to claim 1, the instrument that uses that it is characterized in that taking a sample comprises cutting ring, sheet glass, supporting plate, repaiies native cutter or keyhole saw; Wherein cutting ring is that the main container of depositing is produced and transported to original state sand sample, and it is less to soil disturbance that cutting ring upper end edge guarantees that cutting ring is pressed in the soil body process, and sand proterties to greatest extent maintains the original state; Repairing native cutter or keyhole saw scabbles for the sand sample that will exceed the cutting ring port after cutting ring is pressed into the original state sand; Sheet glass covers the cutting ring lower port can guarantee that sand sample when counter-rotating sand sample does not spill along the cutting ring lower port; Cutting ring is pressed into the rear supporting plate oblique cutting and enters under the cutting ring, can keep to greatest extent sand sample proterties in the cutting ring; Described cutting ring is common instrument in the foundation sampling, and internal diameter is 6-8cm, and high 2-5.4cm, wall thickness are 1.5-2.2mm, and the cutting ring upper end has blade, and is less to the disturbance of sand sample during sampling, can keep to greatest extent sand in the sampling process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453790XA CN102912781A (en) | 2012-11-11 | 2012-11-11 | Loose sand cutting ring sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210453790XA CN102912781A (en) | 2012-11-11 | 2012-11-11 | Loose sand cutting ring sampling method |
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| CN102912781A true CN102912781A (en) | 2013-02-06 |
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| CN201210453790XA Pending CN102912781A (en) | 2012-11-11 | 2012-11-11 | Loose sand cutting ring sampling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374604A (en) * | 2014-11-19 | 2015-02-25 | 无锡中地钻探装备有限公司 | Inclined soil sampler |
| CN105973669A (en) * | 2016-06-30 | 2016-09-28 | 徐春霞 | Automatic repairing and mold releasing instrument for cutting rings |
| CN108593341A (en) * | 2018-06-26 | 2018-09-28 | 西安建筑科技大学 | A kind of large size intact loess sampling method |
| CN114739729A (en) * | 2022-04-29 | 2022-07-12 | 中国电建集团成都勘测设计研究院有限公司 | Construction method for rapidly obtaining undisturbed soil samples in batches |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202405U (en) * | 1985-06-19 | 1986-05-07 | 张德明 | Geotome for measuring the unit weight of soil body |
| JPH1171744A (en) * | 1997-07-04 | 1999-03-16 | Koken Boring Mach Co Ltd | Sampling method for geological survey and sampler thereof |
| CN2622694Y (en) * | 2003-06-06 | 2004-06-30 | 张忠祥 | Solidity measuring soil sampler |
| CN201540215U (en) * | 2009-11-30 | 2010-08-04 | 魏海刚 | Straight-pushing taking in situ soil sampler |
-
2012
- 2012-11-11 CN CN201210453790XA patent/CN102912781A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85202405U (en) * | 1985-06-19 | 1986-05-07 | 张德明 | Geotome for measuring the unit weight of soil body |
| JPH1171744A (en) * | 1997-07-04 | 1999-03-16 | Koken Boring Mach Co Ltd | Sampling method for geological survey and sampler thereof |
| CN2622694Y (en) * | 2003-06-06 | 2004-06-30 | 张忠祥 | Solidity measuring soil sampler |
| CN201540215U (en) * | 2009-11-30 | 2010-08-04 | 魏海刚 | Straight-pushing taking in situ soil sampler |
Non-Patent Citations (3)
| Title |
|---|
| 刘培文等: "《公路工程材料常规试验图解》", 31 March 2012, 北京交通大学出版社 * |
| 杨广庆: "《路基工程》", 30 April 2010, 中国铁道出版社 * |
| 谢永德等: "土工试验常见问题探讨", 《西部探矿工程》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374604A (en) * | 2014-11-19 | 2015-02-25 | 无锡中地钻探装备有限公司 | Inclined soil sampler |
| CN105973669A (en) * | 2016-06-30 | 2016-09-28 | 徐春霞 | Automatic repairing and mold releasing instrument for cutting rings |
| CN105973669B (en) * | 2016-06-30 | 2018-07-03 | 徐春霞 | Cutting ring is repaired automatically, stripping fork |
| CN108593341A (en) * | 2018-06-26 | 2018-09-28 | 西安建筑科技大学 | A kind of large size intact loess sampling method |
| CN108593341B (en) * | 2018-06-26 | 2023-07-07 | 西安建筑科技大学 | Large undisturbed loess sampling method |
| CN114739729A (en) * | 2022-04-29 | 2022-07-12 | 中国电建集团成都勘测设计研究院有限公司 | Construction method for rapidly obtaining undisturbed soil samples in batches |
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Application publication date: 20130206 |