CN101935998A - Method for storing big size nonsaturated structural undistributed soil sample - Google Patents
Method for storing big size nonsaturated structural undistributed soil sample Download PDFInfo
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- CN101935998A CN101935998A CN 201010291902 CN201010291902A CN101935998A CN 101935998 A CN101935998 A CN 101935998A CN 201010291902 CN201010291902 CN 201010291902 CN 201010291902 A CN201010291902 A CN 201010291902A CN 101935998 A CN101935998 A CN 101935998A
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Abstract
The invention discloses a method for storing big size nonsaturated structural undistributed soil sample, including that: soil sample is obtained manually, the soil sample is cut into a hexahedron by a panel saw, and the six planes are smoothed by a cutter, and the up and down directions of the soil sample are marked; a dense-mesh gauze is utilized to wrap the soil sample and the marks are numbered, adhesive tape is utilized to fix the seal of the gauze, a brush is utilized to uniformly brush liquid paraffin after hot melting onto the gauze, and standing is carried out until the paraffin is condensed; the soil sample is numbered and packaged by plastic film, then the plastic film is fixed by adhesive tape, and then the soil sample is placed into a cardboard carton which is in the same measurement and is provided with foam sheets at the periphery, mellow diffuse material is utilized to stuff the gap of the cardboard carton, and adhesive tape is utilized to seal the cardboard carton. The method for storing big size nonsaturated structural undistributed soil sample can cause the physical and mechanical properties of the soil sample, such as moisture content and constitutive property, to be invariant for a long time, thus test result is more accurate.
Description
Technical field
The present invention relates to geotechnical engineering soil test technique field, the store method that relates to a kind of soil sample, it specifically is the store method of the structural undisturbed soil sample of a kind of large scale unsaturation, this method can be with the structural undisturbed soil sample long preservation of large scale unsaturation, during preservation, use this method can guarantee that the soil sample water content remains unchanged, can make the structural undisturbed soil sample of unsaturation in the preservation process, keep it structural again, thereby make result of the test more accurate.
Background technology
Do not provide the store method of undisturbed soil sample on the existing technical specification, the normal store method that adopts of undisturbed soil sample mainly is that soil sample is sealed in the box that fetches earth, twine sealing with adhesive tape, this soil sample store method can not guarantee soil specimen moisture content, soil sample change in physical in storage life is bigger, holding time is shorter, can not satisfy the soil test requirement; The soil sample that obtains, size is less owing to fetched earth the box capacity limitation, can not well keep the structural of soil sample.The undisturbed soil sample that adopts this kind method to preserve carry out conventional geotechnological laboratory test still can, can not satisfy and adopt the original state sample to carry out in large geotechnical test (large geotechnical centrifugal model test etc.) process and mechanical property keeps and requirement on the holding time soil sample physics.Therefore, the store method of the structural undisturbed soil sample of demand large scale unsaturation is one of problem of extremely paying close attention to of this area.
Summary of the invention
Defective or deficiency at the prior art existence, the objective of the invention is to, the store method of the structural undisturbed soil sample of a kind of large scale unsaturation is provided, this method can be with the structural undisturbed soil sample long preservation of large scale unsaturation, during preservation, use this method can guarantee that the soil sample water content remains unchanged, can guarantee that again the structural undisturbed soil sample of unsaturation keeps the requirement of other physics and mechanical property in the preservation process.The soil sample of long preservation can satisfy employing original state sample and carry out in large geotechnical test (large geotechnical centrifugal model test etc.) process soil sample physics and mechanical property maintenance and the requirement on the holding time.
In order to realize above-mentioned technical assignment, the present invention adopts following technical solution:
The store method of the structural undisturbed soil sample of a kind of large scale unsaturation is characterized in that may further comprise the steps:
Step 1 with the large-scale soil block that has just taken out, uses panel saw to cut into several hexahedron soil samples according to the soil sample design size;
Step 2 is scabbled six faces of hexahedron soil sample with cutter, and SD soil sample upper and lower to;
Step 3 with close purpose gauze parcel hexahedron soil sample and numbering mark, re-uses fixedly gauze of adhesive tape;
Step 4, with the liquid paraffin of hairbrush after with hot melt uniformly brush on gauze, leave standstill to the paraffin condensation;
Step 5 is used plastic film packaging, uses adhesive tape fixed plastics film again;
Step 6 is provided with the hexahedron soil sample after the sealing in the equidimension cardboard box of cystosepiment around packing into;
Step 7 is used rubber belt sealing with soft bulk material with the real back of space plug of cardboard box.
After the present invention adopts manual work to obtain the hexahedron soil sample, use cutter to scabble each face of soil sample, adopt close purpose gauze parcel, and the liquid paraffin behind the use hot melt is evenly smeared the soil sample protective material of back condensation moulding, make the hexahedron soil sample that obtains have enough hardness, intensity and sealing, can keep soil sample profile and physical property to greatest extent; Around using, soil sample after the sealing is provided with the equidimension heavy wall packed in cases of the equidimension customization of cystosepiment, and adopt space between real soil sample of soft diffusing shape (wheat shell etc.) material plug and the tank wall, the back uses rubber belt sealing to fix, have good vibrationproof and stressed buffering effect, can make things convenient for simultaneously and safety pile up native case.The present invention has adopted multiple effective measures, guaranteed that the structural undisturbed soil soil sample of unsaturation keeps the requirement of its water content, physics such as structural and mechanical property in the preservation process, solved the soil sample that adopts the structural undisturbed soil sample of large scale unsaturation to carry out large-scale laboratory test and preserved a difficult problem, thereby made result of the test more accurate.
Description of drawings
Fig. 1 is a workflow diagram of the present invention;
The present invention is described in further detail below in conjunction with accompanying drawing.
The specific embodiment
The present invention is described in detail below with reference to Figure of description and embodiment.
As shown in Figure 1, after the large-scale soil block that manual work has just been obtained uses panel saw to cut into several hexahedron soil samples, use cutter scabble six faces of hexahedron soil sample and SD soil sample upper and lower to; Use close purpose gauze parcel soil sample and numbering mark, re-use adhesive tape fixed yarn cloth and seal, the liquid paraffin after then using hairbrush with hot melt brush uniformly leaves standstill to the paraffin condensation on gauze; With the soil sample numbering, and use plastic film packaging, use adhesive tape fixed plastics film again, be provided with in the equidimension cardboard box of cystosepiment around packing into, rubber belt sealing is used in the real back of space plug of cardboard box with soft bulk material.
Be that principle of the present invention is described below:
The present invention adopts panel saw that soil sample is cut into hexahedron, uses cutter to scabble each face of soil sample, and the SD above and below, can be easier to discern soil sample original upper-lower position relation under native state in process of the test; Adopt close purpose gauze parcel, and the liquid paraffin behind the use hot melt is evenly smeared the soil sample protective material of back condensation moulding, make soil sample have enough hardness, intensity and sealing, can keep soil sample profile, structural, water content and other physics, mechanical property to greatest extent; Around using, soil sample after the sealing is provided with the equidimension heavy wall cardboard box packing of cystosepiment, and adopt space between real soil sample of soft diffusing shape (wheat shell etc.) material plug and the tank wall, use rubber belt sealing to fix then, have good vibrationproof and stressed buffering effect, can make things convenient for simultaneously and safety pile up cardboard box.
The present invention has adopted multiple effective measures to guarantee that the structural undisturbed soil soil sample of unsaturation keeps the requirement of its water content, physics such as structural and mechanical property in the preservation process, solved the soil sample that adopts the structural undisturbed soil sample of large scale unsaturation to carry out large-scale laboratory test and preserved a difficult problem, thereby made result of the test more accurate.The applicant is applied in Lvliang City, the Shanxi Province civil airport stability of slope centrifugal model test undisturbed soil sample preservation work according to method of the present invention, obtained good effect, in the present embodiment according to method of the present invention, obtain 128 unsaturation original state loess samples (soil sample maximum size: 53cm * 49cm * 51cm) altogether, be transported to Beijing China Water Resources ﹠ Hydropower Science Research Institute geotechnique's centrifugal test chamber, and soil sample is surveyed sample in different time sections, the result shows, soil sample does not have disrepair phenomenon, and water content remains unchanged substantially.
Claims (1)
1. the store method of the structural undisturbed soil sample of large scale unsaturation is characterized in that may further comprise the steps:
Step 1 with the large-scale soil block that has just taken out, uses panel saw to cut into several hexahedron soil samples according to the soil sample design size;
Step 2 is scabbled six faces of hexahedron soil sample with cutter, and SD soil sample upper and lower to;
Step 3 with close purpose gauze parcel hexahedron soil sample and numbering mark, re-uses fixedly gauze of adhesive tape;
Step 4, with the liquid paraffin of hairbrush after with hot melt uniformly brush on gauze, leave standstill to the paraffin condensation;
Step 5 is used plastic film packaging, uses adhesive tape fixed plastics film again;
Step 6 is provided with the hexahedron soil sample after the sealing in the equidimension cardboard box of cystosepiment around packing into;
Step 7 is used rubber belt sealing with soft bulk material with the real back of space plug of cardboard box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102919027A CN101935998B (en) | 2010-09-26 | 2010-09-26 | Method for storing big size nonsaturated structural undistributed soil sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102919027A CN101935998B (en) | 2010-09-26 | 2010-09-26 | Method for storing big size nonsaturated structural undistributed soil sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101935998A true CN101935998A (en) | 2011-01-05 |
| CN101935998B CN101935998B (en) | 2012-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102919027A Expired - Fee Related CN101935998B (en) | 2010-09-26 | 2010-09-26 | Method for storing big size nonsaturated structural undistributed soil sample |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528852A (en) * | 2013-10-31 | 2014-01-22 | 南京大学 | Undisturbed sampling method capable of effectively preventing coarse-grained soil from leaking through side wall |
| CN105699623A (en) * | 2016-03-04 | 2016-06-22 | 华北水利水电大学 | System and method for dynamically monitoring soil moisture |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5596436A (en) * | 1979-01-19 | 1980-07-22 | Nippon Hodo Co Ltd | Method of preserving soil sample |
| GB2184835A (en) * | 1985-12-19 | 1987-07-01 | Redwood Corex | Core container |
| CN1645090A (en) * | 2005-01-20 | 2005-07-27 | 四川石油管理局地质勘探开发研究院 | Rock saturation sample storing method |
| CN101042315A (en) * | 2007-03-31 | 2007-09-26 | 浙江建设职业技术学院 | Indoor maintain method of light weight earthen |
| CN201010892Y (en) * | 2007-03-27 | 2008-01-23 | 中国科学院武汉岩土力学研究所 | Press sealing type plastic soil sample barrel |
-
2010
- 2010-09-26 CN CN2010102919027A patent/CN101935998B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5596436A (en) * | 1979-01-19 | 1980-07-22 | Nippon Hodo Co Ltd | Method of preserving soil sample |
| GB2184835A (en) * | 1985-12-19 | 1987-07-01 | Redwood Corex | Core container |
| CN1645090A (en) * | 2005-01-20 | 2005-07-27 | 四川石油管理局地质勘探开发研究院 | Rock saturation sample storing method |
| CN201010892Y (en) * | 2007-03-27 | 2008-01-23 | 中国科学院武汉岩土力学研究所 | Press sealing type plastic soil sample barrel |
| CN101042315A (en) * | 2007-03-31 | 2007-09-26 | 浙江建设职业技术学院 | Indoor maintain method of light weight earthen |
Non-Patent Citations (1)
| Title |
|---|
| 《有色金属矿产与勘查》 19960630 谢贵明 原状土样质量的影响因素和质量保证措施 第189-192页 第5卷, 第3期 2 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528852A (en) * | 2013-10-31 | 2014-01-22 | 南京大学 | Undisturbed sampling method capable of effectively preventing coarse-grained soil from leaking through side wall |
| CN103528852B (en) * | 2013-10-31 | 2015-07-08 | 南京大学 | Undisturbed sampling method capable of effectively preventing coarse-grained soil from leaking through side wall |
| CN105699623A (en) * | 2016-03-04 | 2016-06-22 | 华北水利水电大学 | System and method for dynamically monitoring soil moisture |
| 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 |
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| Publication number | Publication date |
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| CN101935998B (en) | 2012-02-01 |
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