CN103712840B - A kind of static pressure shears sample product instrument and product method thereof - Google Patents
A kind of static pressure shears sample product instrument and product method thereof Download PDFInfo
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- CN103712840B CN103712840B CN201410004355.8A CN201410004355A CN103712840B CN 103712840 B CN103712840 B CN 103712840B CN 201410004355 A CN201410004355 A CN 201410004355A CN 103712840 B CN103712840 B CN 103712840B
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- cutting ring
- retaining ring
- ring
- briquetting
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Abstract
The invention discloses a kind of static pressure and shear sample product instrument and product method thereof, comprise retaining ring, hexagon socket head cap screw, lower retaining ring, lower cutting ring, upper cutting ring, briquetting and cushion block, it is characterized in that, described cushion block both sides have set screw hole one, lower retaining ring both sides also set the centre distance screw hole identical with screw hole one two, and described lower cutting ring and upper cutting ring are placed on below inside retaining ring and lower retaining ring and top.No matter the present invention is in the degree of accuracy of sample preparation, or on test operation, all has incomparable advantage, and the present invention has simple to operate, that sample preparation efficiency, precision are high remarkable advantage.
Description
Technical field
The invention belongs to the soil body Mechanics Performance Testing field of civil engineering work subject, be specifically related to a kind of static pressure and shear sample product instrument and product method thereof.
Background technology
According in centrifugal modeling method standard (GB/T50123-1999) sample preparation is carried out to disturbed soil time, general employing hits sample method and pressure-like method, and these two kinds of methods have a lot of drawbacks: the requirement that 1, cannot reach test in density accuracy; 2, sampling can not ensure once success, even if once success, the soil of at substantial also wanted by a cutting ring sample, this adds increased the hack workload in early stage; 3, process of the test is greatly consuming time, makes a cutting ring sample, approximately must half an hour.General centrifugal modeling is less demanding, it is few to do several sample time spent, if the cutting ring sample quantities required for large-scale soil test is a lot of as hundreds of and to the high time and efforts making samples meeting at substantial by these two kinds of methods of the density accuracy requirement of sample.
Summary of the invention
A kind of static pressure is the object of the present invention is to provide to shear sample product instrument and product method thereof, hit sample method and pressure-like method make the large and time long defect of geotechnical sample workload in enormous quantities to solve existing use, the present invention can not only the density of Control Assay accurately, and can save test soil.
For realizing object of the present invention, the technical solution used in the present invention is:
A kind of static pressure shears sample product instrument, comprise retaining ring, hexagon socket head cap screw, lower retaining ring, lower cutting ring, upper cutting ring, briquetting and cushion block, it is characterized in that, described cushion block both sides have set screw hole one, lower retaining ring both sides also set the centre distance screw hole identical with screw hole one two, and hexagon socket head cap screw is by being screwed into screw hole one and lower retaining ring is fixed on above cushion block by screw hole two; Be divided into internal diameter one and internal diameter two inside described upper retaining ring, internal diameter one size is identical with lower retaining ring internal diameter, and internal diameter two size is identical with lower retaining ring external diameter, and upper retaining ring is stuck in lower retaining ring top by internal diameter two; Described lower cutting ring and upper cutting ring are placed on below inside retaining ring and lower retaining ring and top, and described briquetting covers on upper cutting ring.
The described lower cutting ring edge of a knife is downward, and the upper cutting ring edge of a knife upwards.
Described briquetting is divided into top cover and block, and ingot diameter is 61mm, is highly 20mm.
The present invention provides a kind of static pressure on the other hand and shears sample product method, it is characterized in that, comprises the steps:
1), first take 50% of the soil sample general assembly (TW) of the certain water percentage experimentally requiring to configure in proportion and put into lower cutting ring and upper cutting ring, then be pressed in above upper cutting ring by briquetting precompressed is carried out to soil sample, and then take off briquetting;
2) soil sample, again taking remaining 50% weight puts into lower cutting ring and upper cutting ring, in addition in the soil sample additionally adding 3g water percentage in proportion, and is covered by briquetting on upper cutting ring;
3), after step 2, whole sample product instrument is put into above the lifting table of CBR test instrument, and on briquetting, puts thin iron block, even to ensure soil sample pressurized;
4), after step 3, shake CBR test instrument lifting table makes lifting table rise, when injection bar Contact Thin iron block, slow down hand speed, control at two seconds one circles, stop shake when block below briquetting submerges inside upper cutting ring completely, now soil sample is pressed completely into inside lower cutting ring, then static pressure 5 ~ 10 minutes;
5), after step 4, taken off by whole sample product instrument from CBR test instrument, take away briquetting and upper cutting ring, taken out by lower cutting ring, scrape off the unnecessary soil in lower cutting ring edge gently with scraper ecto-entad, after scraping completes, sample production completes.
Advantage of the present invention is:
1, can save test soil, compacting process and pressure-like method are under primary sample just successful prerequisite, and each sample approximately needs the soil of 500g, when joined Water Content Tests in Soil Samples is lower, testing repeated sampling possibly for one several times could be successful, and adopts the present invention, and making a dry density is 1.6g/cm
3, 1.7g/cm
3, 1.8g/cm
3sample only need respectively 100g, 106g, 112g soil, and guarantee primary sample success, significantly reduce the workload of hack.
2, can save time, first two method terminates from native sample compacting and static pressure to cutting ring sampling, and making a sample approximately needs half an hour, and the present invention only needs 10 minutes, and efficiency improves 3 times.
3, can the density of accurate Control Assay, centrifugal modeling requires that same group of Sample density difference of shear test is not more than ± 0.1g/cm
3, first two method cannot accomplish this point, and the sample even made and prewired dry density difference reach ± 0.2g/cm
3.The sample companion specimens density difference utilizing the present invention to make is less than ± 0.005g/cm
3, be less than 0.01g/cm with the difference of prewired dry density
3, the order of magnitude that difference specifies much smaller than specification, obviously more accurate.
In sum, no matter the present invention is in the degree of accuracy of sample preparation, or on test operation, all has incomparable advantage, and the present invention has simple to operate, that sample preparation efficiency, precision are high remarkable advantage.
Accompanying drawing explanation
The following accompanying drawing by means of embodiment carries out brief description to the present invention now.In accompanying drawing:
Fig. 1 shows the structural representation that static pressure of the present invention shears sample product instrument;
Fig. 2 shows the disassembly diagram that static pressure of the present invention shears sample product instrument.
In figure: 101, upper retaining ring, 102, hexagon socket head cap screw, 103, lower retaining ring, 104, lower cutting ring, 105, upper cutting ring, 106, briquetting, 107, cushion block, 1011, internal diameter two, 1012, internal diameter one, 1031, screw hole two, 1061, top cover, 1062, block, 1071, screw hole one
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
As shown in the figure, static pressure shears sample product instrument, comprise retaining ring 101, hexagon socket head cap screw 102, lower retaining ring 103, lower cutting ring 104, upper cutting ring 105, briquetting 106 and cushion block 107, in the present embodiment, upper retaining ring 101 and lower retaining ring 103 internal diameter are 65mm, lower cutting ring 104 and upper cutting ring 105 size are the standard cutting ring in centrifugal modeling, diameter is 61mm, be highly 20mm, cushion block 107 both sides have set screw hole 1, lower retaining ring 103 both sides also set the centre distance screw hole identical with screw hole 12 1031, hexagon socket head cap screw 102 is by being screwed into screw hole 1 and lower retaining ring 103 is fixed on above cushion block 107 by screw hole 2 1031, be divided into internal diameter 1 and internal diameter 2 1011 inside described upper retaining ring 101, internal diameter 1 size is identical with lower retaining ring 103 internal diameter, and internal diameter 2 1011 size is identical with lower retaining ring 103 external diameter, and upper retaining ring 101 is stuck in lower retaining ring 103 top by internal diameter 2 1011, lower cutting ring 104 and upper cutting ring 105 are placed on below inside retaining ring 101 and lower retaining ring 103 and top, and described briquetting 106 covers on upper cutting ring 105.
Lower cutting ring 104 edge of a knife is downward, and upper cutting ring 105 edge of a knife upwards, makes not produce gap during two cutting ring docking like this; Briquetting 106 is divided into top cover 1061 and block 1062, in the present embodiment, preferred block 1062 diameter is that 61mm can put into inside lower cutting ring 104, is highly that 20mm is just in time identical with the height of cutting ring.
According to centrifugal modeling standard, sample preparation step is as follows: 1. the sieve air-dry soil wooden mallet being pulverized 2mm, and measures water percentage; 2. configure the sample of certain water percentage.Press
formulae discovery will prepare the amount of water of soil sample, in formula: m
wamount of water needed for-soil sample; M-air-dry quality of soil sample; w
h-air-dry Water Content Tests in Soil Samples (%); Water percentage required by w-preparation soil sample.Soil sample is laid in iron pan, sprays m with sprayer
wwater, spray limit, limit is stirred, and ensures to stir full and uniform, then loads polybag, the wetting diel of sealing.The soil sample so according to requirements configuring certain water percentage has just configured.
Shear the sample of sample product method at a kind of static pressure by the present embodiment, comprise the steps:
1), first take 50% of the soil sample general assembly (TW) of the certain water percentage experimentally requiring to configure in proportion and put into lower cutting ring 104 and upper cutting ring 105, then be pressed in upper cutting ring 105 by briquetting 106 and above precompressed carried out to soil sample, and then take off briquetting 106;
2) soil sample, again taking remaining 50% weight puts into lower cutting ring 104 and upper cutting ring 105, in addition in the soil sample additionally adding 3g water percentage in proportion, and is covered by briquetting 106 on upper cutting ring 105;
3), after step 2, whole sample product instrument is put into above the lifting table of CBR test instrument, and put thin iron block on briquetting 106, even to ensure soil sample pressurized;
4), after step 3, shake CBR test instrument lifting table makes lifting table rise, when injection bar Contact Thin iron block, slow down hand speed, control at two seconds one circles, stop shake when block 1062 below briquetting 106 submerges inside upper cutting ring 105 completely, now soil sample is pressed completely into inside lower cutting ring 104, then static pressure 5 ~ 10 minutes;
5), after step 4, taken off by whole sample product instrument from CBR test instrument, take away briquetting 106 and upper cutting ring 105, taken out by lower cutting ring 104, scrape off the unnecessary soil in lower cutting ring 104 edge gently with scraper ecto-entad, after scraping completes, sample production completes.
Surveyed by dry density the present invention being obtained to three kinds of samples, testing result is in table 1, and testing result shows: the sample companion specimens density difference utilizing the present invention to make is less than ± 0.005g/cm
3, be less than 0.01g/cm with the difference of prewired dry density
3, the order of magnitude that difference specifies much smaller than specification, obviously more accurate.
Table 1
Claims (4)
1. a static pressure shears sample product instrument, comprise retaining ring (101), hexagon socket head cap screw (102), lower retaining ring (103), lower cutting ring (104), upper cutting ring (105), briquetting (106) and cushion block (107), it is characterized in that, described cushion block (107) both sides have set screw hole one (1071), lower retaining ring (103) both sides also set the centre distance screw hole identical with screw hole one (1071) two (1031), hexagon socket head cap screw (102) is by being screwed into screw hole one (1071) and lower retaining ring (103) is fixed on above cushion block (107) by screw hole two (1031), described upper retaining ring (101) inner side is divided into internal diameter one (1012) and internal diameter two (1011), internal diameter one (1012) size is identical with lower retaining ring (103) internal diameter, internal diameter two (1011) size is identical with lower retaining ring (103) external diameter, and upper retaining ring (101) is stuck in lower retaining ring (103) top by internal diameter two (1011), described lower cutting ring (104) and upper cutting ring (105) are placed on below and the top of retaining ring (101) and lower retaining ring (103) inner side, and described briquetting (106) covers on upper cutting ring (105).
2. static pressure according to claim 1 shears sample product instrument, it is characterized in that, described lower cutting ring (104) edge of a knife is downward, and upper cutting ring (105) edge of a knife upwards.
3. static pressure according to claim 1 shears sample product instrument, and it is characterized in that, described briquetting (106) is divided into top cover (1061) and block (1062), and block (1062) diameter is 61mm, is highly 20mm.
4. static pressure shears a sample product method, it is characterized in that, comprises the steps:
1), first take 50% of the soil sample general assembly (TW) of the certain water percentage experimentally requiring to configure in proportion and put into lower cutting ring (104) and upper cutting ring (105), be pressed in cutting ring (105) by briquetting (106) again and precompressed carried out to soil sample above, and then take off briquetting (106);
2) soil sample, again taking remaining 50% weight puts into lower cutting ring (104) and upper cutting ring (105), in addition in the soil sample additionally adding 3g water percentage in proportion, and covers on upper cutting ring (105) by briquetting (106);
3), after step 2, whole sample product instrument is put into above the lifting table of CBR test instrument, and put thin iron block on briquetting (106), even to ensure soil sample pressurized;
4), after step 3, shake CBR test instrument lifting table makes lifting table rise, when injection bar Contact Thin iron block, slow down hand speed, control at two seconds one circles, stop shake when the block (1062) of briquetting (106) below submerges upper cutting ring (105) the inside completely, now soil sample is pressed completely into lower cutting ring (104) the inside, then static pressure 5 ~ 10 minutes;
5), after step 4, whole sample product instrument is taken off from CBR test instrument, take away briquetting (106) and upper cutting ring (105), lower cutting ring (104) is taken out, scrape off the unnecessary soil in lower cutting ring (104) edge gently with scraper ecto-entad, after scraping completes, sample production completes.
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| CN103712840B true CN103712840B (en) | 2015-09-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926126B (en) * | 2014-04-29 | 2016-06-29 | 中国建筑材料科学研究总院 | A kind of method of cement slurry tabletting assay device and cement slurry tabletting |
| CN104792608A (en) * | 2015-03-30 | 2015-07-22 | 西南交通大学 | Shear box group for direct shear test of undisturbed sandy soil |
| CN109307628B (en) * | 2018-09-29 | 2024-04-26 | 中铁隧道局集团有限公司 | Mud film shear strength test instrument and mud film shear strength measurement method thereof |
| CN110487605A (en) * | 2019-07-17 | 2019-11-22 | 广东交科检测有限公司 | Shaping method of specimen is compared in a kind of fast and accurately native carrying |
| CN111693316B (en) * | 2020-06-08 | 2024-03-22 | 温州大学 | Ring knife soil cutting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL393040A1 (en) * | 2010-11-25 | 2012-06-04 | Politechnika Lubelska | Method and kit for the preparation of a soil sample for testing the filtration rate, especially for anisotropic conditions |
| CN102914458A (en) * | 2012-10-16 | 2013-02-06 | 绍兴文理学院 | Sample preparing device for remolded soil direct shear test sample and sample preparing method thereof |
| CN203324070U (en) * | 2013-07-06 | 2013-12-04 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Remolding fine-grained soil test sample preparation device |
| CN103471919A (en) * | 2013-09-18 | 2013-12-25 | 上海交通大学 | Portable one-dimensional stress relaxation testing device and testing method thereof |
| CN203705235U (en) * | 2014-01-01 | 2014-07-09 | 浙江省建设工程质量检验站有限公司 | Static shear sample part instrument |
-
2014
- 2014-01-01 CN CN201410004355.8A patent/CN103712840B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL393040A1 (en) * | 2010-11-25 | 2012-06-04 | Politechnika Lubelska | Method and kit for the preparation of a soil sample for testing the filtration rate, especially for anisotropic conditions |
| CN102914458A (en) * | 2012-10-16 | 2013-02-06 | 绍兴文理学院 | Sample preparing device for remolded soil direct shear test sample and sample preparing method thereof |
| CN203324070U (en) * | 2013-07-06 | 2013-12-04 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Remolding fine-grained soil test sample preparation device |
| CN103471919A (en) * | 2013-09-18 | 2013-12-25 | 上海交通大学 | Portable one-dimensional stress relaxation testing device and testing method thereof |
| CN203705235U (en) * | 2014-01-01 | 2014-07-09 | 浙江省建设工程质量检验站有限公司 | Static shear sample part instrument |
Non-Patent Citations (3)
| Title |
|---|
| 国家质量技术监督局 中华人民共和国建设部.土工试验方法标准.《中华人民共和国国家标准 GB/T 50123-1999》.1999, * |
| 重塑土室内制样技术对比研究;郑剑锋 等;《冰川冻土》;20080630;第30卷(第3期);第494-500页 * |
| 重塑土简易制样技术及工程应用;赵振勇 等;《广东公路交通》;20061231(第1期);第57-60页 * |
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