CN2630839Y - Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument - Google Patents
Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument Download PDFInfo
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- CN2630839Y CN2630839Y CN 03259709 CN03259709U CN2630839Y CN 2630839 Y CN2630839 Y CN 2630839Y CN 03259709 CN03259709 CN 03259709 CN 03259709 U CN03259709 U CN 03259709U CN 2630839 Y CN2630839 Y CN 2630839Y
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Abstract
The utility model relates to a testing instrument. A top hoop which is on the upper end of the sample tube and a bottom hoop which is on the lower end are connected with an upper and a lower tectum respectively, the upper and lower tectum is provided with a tee, a spring bar, a fixed porous plate, a vertical stent or a level stent can be arranged under the sample tube. The utility model solves the present technical defects of that the sample tube can not be sealed, the pumping saturated method can not be implemented, and can only measure the vertical permeating coefficient and can not measure the level permeating coefficient, and can also measure the critical hydraulic gradient of the thin particle soil which has little permeating coefficient during the permeating failure. That is characterized in that has simple structure, is convenient to operated, has wide adaptation, can measure a plurality of coefficients.
Description
Technical field
The utility model relates to a kind of testing tool, particularly a kind of instrument of testing coarse-grained soil infiltration coefficient and seepage deformation and soil sample generation critical hydraulic gradient under seepage.
Background technology
At present, major part all is an earth and rockfill dam in the reservoir dam, and as easy as rolling off a log generation crack, phenomenon such as come down and break down are wherein relevant with Seepage problems mostly.Therefore, need test, to avoid the generation of above-mentioned catastrophic failure to seepage flow.
Before the utility model was made, existing instrument or equipment often adopted hydrostatic head method or two kinds of methods of variable water level method to test.Usually use " 70 type permeameter " to adopt hydrostatic head method to measure infiltration coefficient to sandy soil; Usually use " southern 55 type permeameters " to adopt variable water level method to measure infiltration coefficient to cohesive soil; Osmotic coefficient investigating for the coarse-grained soil of big particle diameter is measured usually with vertical seepage deformation instrument mensuration with seepage deformation.To the infiltration coefficient of coarse-grained soil and the mensuration of seepage deformation, because the last porous disc of vertical seepage deformation instrument does not have stationary installation to fix, can only carry out level determination, can only measure vertical seepage flow, promptly seepage direction is consistent with gravity direction or opposite, can't measure level to infiltration coefficient, be the seepage flow state of seepage direction when vertical with gravity direction, and under the general situation, the horizontal direction infiltration coefficient is greater than vertical infiltration coefficient, and this has just formed a major defect; In addition, because this instrument test specimen tube lacks packoff, can only adopt the hot water saturation method saturated, can not adopt the saturation method of bleeding saturated, so the critical hydraulic slope in the time of can only measuring the bigger coarse-grained soil seepage failure of infiltration coefficient, and the critical hydraulic slope can not adopt the saturation method of bleeding to measure the less fine grained soil sample seepage failure of infiltration coefficient the time.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned defective, design a kind of can measure coarse-grained soil vertically to infiltration coefficient, can measure the infiltration coefficient from level to seepage flow state of seepage direction when vertical again with gravity direction, critical hydraulic slope in the time of can measuring the bigger coarse particle soil sample seepage failure of infiltration coefficient, the critical hydraulic slope in the time of can measuring the less soil sample seepage failure of infiltration coefficient again.
The technical solution of the utility model is: coarse-grained soil infiltration coefficient and soil body penetration deformation tester, include upstream and downstream water level control apparatus, test specimen tube and porous disc, its major technique is characterised in that the test specimen tube upper end is provided with the top hoop, the lower end is provided with end hoop, on upper top cover, the following top cover threeway, push rod are set respectively, top, test specimen tube upper end hoop and upper top cover be connected, bottom hoop is connected with following top cover under it, the push rod contact porous plate outside, form sealing in the test specimen tube, under the test specimen tube vertical support frame or horizontal stand can be set.
Advantage of the present utility model and effect are because fixing, the sealing function of the top hoop of conical upper and lower top cover and test specimen tube, end hoop, not only can measure the seepage direction seepage flow state consistent or opposite with gravity direction, and can the usage level support measure the seepage flow state of seepage direction when vertical with gravity direction, critical hydraulic slope when the bigger coarse-grained soil seepage failure of infiltration coefficient is measured in decapacitation simultaneously, can also adopt the saturation method of bleeding to make the less fine grained soil sample of infiltration coefficient saturated, thus the critical hydraulic slope can measure its seepage failure the time.
Description of drawings
Fig. 1-the utility model structural principle is used synoptic diagram.
The front elevation of the conical upper and lower top cover among Fig. 2-Fig. 1.
The upward view of Fig. 3-Fig. 2.
Test specimen tube front elevation among Fig. 4-Fig. 1.
The vertical view of Fig. 5-Fig. 4.
Fig. 6-the utility model is measured the structural principle synoptic diagram of horizontal seepage flow.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, it is the test layout of measuring the vertical critical gradient to seepage failure of the seepage direction vertical infiltration coefficient consistent or opposite with tested soil sample generation with gravity direction, the left side is a upper pond level regulating device 1, the right is a level of tail water regulating device 2, the centre is a testing tool, two plastics spring pipes 3 are respectively with upper pond level regulating device 1, level of tail water regulating device 2 is communicated to upper top cover 4, following top cover 5, upper top cover 4, it is conical that following top cover 5 is, top is provided with threeway 6, vent port is arranged, osculum, bottom have spring spindle 7, apopore 8, screw 9; Testing tool is a test specimen tube 10, organic glass is made, the upper end is a top hoop 11, the lower end is an end hoop 12, on the top hoop 11 fixing threaded hole 13 is arranged, upper top cover 4 binds round 11 by screw 9 usefulness nuts with the top of test specimen tube 10 fixedlys connected, add rubber ring, glass cement seals, the top of a porous plate 15 at test specimen tube 10 is arranged, the outside by upper top cover 4 upper spring push rods 7 contact porous plates 15, following top cover 5 binds round 12 by screw 9 usefulness nuts with the end of test specimen tube 10 fixedlys connected, and adds rubber ring, glass cement seals, and another porous plate 15 outsides are by 7 contacts of the spring spindle on the following top cover 5; Test specimen tube 10 is placed on the vertical support frame 14, and placing soil sample 16 in the test specimen tube 10 is tested soil, and between upper and lower two porous plate 15 inboards, porous plate 15 is a porous disc, and permeable hole is arranged on it.
When test soil sample 16 was coarse-grained soil, it was saturated to adopt the hot water saturation method that tested soil sample 16 is carried out, and adopts hydrostatic head method to test again, measured vertically to infiltration coefficient; When the critical gradient of measuring vertically to seepage failure, when test soil sample 16 is coarse-grained soil, can adopt the hot water saturation method to make tested soil sample 16 saturated, when measuring the critical hydraulic slope of less fine grained soil sample 16 seepage failures of infiltration coefficient, can adopt the saturation method of bleeding to make tested soil sample 16 saturated, process is as follows: with upper top cover 4, threeway 6 on the following top cover 5 is threaded to the state of bleeding and vacuumizes, after being evacuated to about 1 atmosphere negative pressure power value, one side of the threeway 6 from the upper top cover 4 is slowly injected air free water, make sample saturated, then according to hydrostatic head method, improve the infiltration head step by step and seepage failure takes place, measure vertical critical gradient to seepage failure until tested soil sample 16.
As shown in Figure 6, when the level of measuring coarse-grained soil seepage direction and the vertical operating mode of gravity direction during to infiltration coefficient, test specimen tube 10 is positioned horizontally on the horizontal stand 17, place tested soil samples 16 because two porous plates 15 are inboard, and porous plate 15 outsides by upper top cover 4, down a plurality of spring spindles 7 uniform contact on the top cover 5, withstand, then coarse particle soil sample 16 both had been supported, can adapt to its height again, as set 46cm, then tested soil sample 16 can be between 46～50cm, so can measure; After tested soil sample 16 is saturated, adopt hydrostatic head method to measure, method is the same.
Claims (2)
1. coarse-grained soil infiltration coefficient and soil body penetration deformation tester, include upstream and downstream water level control apparatus, test specimen tube and porous disc, it is characterized in that the test specimen tube upper end is provided with the top hoop, the lower end is provided with end hoop, on upper top cover, the following top cover threeway, push rod is set respectively, and top, test specimen tube upper end hoop is connected with upper top cover, bottom hoop is connected with following top cover under it, the push rod contact porous plate outside forms sealing in the test specimen tube, under the test specimen tube vertical support frame or horizontal stand can be set.
2. coarse particle infiltration coefficient according to claim 1 and soil body penetration deformation tester is characterized in that push rod is the spring spindle that is with spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259709 CN2630839Y (en) | 2003-07-22 | 2003-07-22 | Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03259709 CN2630839Y (en) | 2003-07-22 | 2003-07-22 | Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN2630839Y true CN2630839Y (en) | 2004-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03259709 Expired - Fee Related CN2630839Y (en) | 2003-07-22 | 2003-07-22 | Coarse particle osmotic coefficient and soil body osmotic deformation measuring instrument |
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| CN (1) | CN2630839Y (en) |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949815A (en) * | 2010-08-10 | 2011-01-19 | 清华大学 | Permeameter and permeability coefficient measuring system with same |
| CN102033034A (en) * | 2010-10-29 | 2011-04-27 | 四川大学 | Soil body horizontal osmotic coefficient measuring apparatus |
| CN102175585A (en) * | 2011-01-27 | 2011-09-07 | 河海大学 | Method for testing permeability stability of sand gravel material |
| CN101344515B (en) * | 2008-08-29 | 2011-10-05 | 成都理工大学 | Permeability coefficient determinator |
| CN102253182A (en) * | 2011-06-27 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | Method for monitoring expansion and shrinkage deformation of deep soil body under influence of hot and rainy climate |
| CN102866093A (en) * | 2012-09-04 | 2013-01-09 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102944504A (en) * | 2012-10-22 | 2013-02-27 | 南通市建设工程质量检测站有限公司 | Vertical permeable performance tester |
| CN103323576A (en) * | 2013-06-09 | 2013-09-25 | 河海大学 | True three-dimensional swell-shrink instrument |
| CN104359818A (en) * | 2014-10-31 | 2015-02-18 | 盐城工学院 | System for testing permeability coefficient of straw material |
| CN104880396A (en) * | 2015-05-26 | 2015-09-02 | 上海大学 | Soil body two-direction seepage model device under external load action and testing method |
| CN105910973A (en) * | 2016-05-12 | 2016-08-31 | 长沙理工大学 | Stress-related coarse-grained soil seepage deformation characteristic tester and test method |
| CN107014739A (en) * | 2017-06-16 | 2017-08-04 | 成都理工大学 | Undisturbed soil infiltration experiment device and the method for measuring infiltration coefficient |
| CN107167410A (en) * | 2017-06-01 | 2017-09-15 | 三峡大学 | A kind of periodicity comes and goes seepage experimental apparatus and method |
| CN108007840A (en) * | 2017-12-11 | 2018-05-08 | 合肥工业大学 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
| CN108956409A (en) * | 2017-05-19 | 2018-12-07 | 中国地质科学院水文地质环境地质研究所 | A kind of minute-pressure permeameter and test method |
| CN109406373A (en) * | 2018-12-17 | 2019-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Frozen-thawed cycled acts on lower soil body osmotic coefficient measuring instrument and application method |
| CN110082274A (en) * | 2019-05-22 | 2019-08-02 | 陕西秦海检测科技有限公司 | It is large-scale simple with coarse-grained soil horizontal permeation testing apparatus for heat deformation and test method |
| CN110261277A (en) * | 2019-07-05 | 2019-09-20 | 河海大学 | A kind of determining experimental rig and method for being saturated soil sample critical hydraulic gradient in situ |
| CN110907332A (en) * | 2019-12-11 | 2020-03-24 | 天津市市政工程设计研究院 | Testing device and method for horizontal permeability coefficient of shallow soil |
| CN111024590A (en) * | 2020-01-13 | 2020-04-17 | 昆明理工大学 | Can fix on-spot measurement bulk material penetration test device of soil body |
| CN112816387A (en) * | 2020-12-31 | 2021-05-18 | 北京市水利规划设计研究院 | Method and device for determining permeability coefficient and storage medium |
| CN112964562A (en) * | 2021-01-28 | 2021-06-15 | 浙江工业大学 | Triaxial test equipment for measuring eroded soil particles under action of seepage force |
| CN113092718A (en) * | 2021-03-29 | 2021-07-09 | 湖北工业大学 | Indoor geotechnical saturation device for preventing chemical leaching and test method |
| CN113155697A (en) * | 2021-03-30 | 2021-07-23 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure-resistant permeameter device suitable for filling materials and use method |
-
2003
- 2003-07-22 CN CN 03259709 patent/CN2630839Y/en not_active Expired - Fee Related
Cited By (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344515B (en) * | 2008-08-29 | 2011-10-05 | 成都理工大学 | Permeability coefficient determinator |
| CN101949815A (en) * | 2010-08-10 | 2011-01-19 | 清华大学 | Permeameter and permeability coefficient measuring system with same |
| CN102033034B (en) * | 2010-10-29 | 2012-05-02 | 四川大学 | Soil body horizontal osmotic coefficient measuring apparatus |
| CN102033034A (en) * | 2010-10-29 | 2011-04-27 | 四川大学 | Soil body horizontal osmotic coefficient measuring apparatus |
| CN102175585B (en) * | 2011-01-27 | 2012-11-28 | 河海大学 | Method for testing permeability stability of sand gravel material |
| CN102175585A (en) * | 2011-01-27 | 2011-09-07 | 河海大学 | Method for testing permeability stability of sand gravel material |
| CN102253182A (en) * | 2011-06-27 | 2011-11-23 | 中国科学院武汉岩土力学研究所 | Method for monitoring expansion and shrinkage deformation of deep soil body under influence of hot and rainy climate |
| CN102253182B (en) * | 2011-06-27 | 2014-01-15 | 中国科学院武汉岩土力学研究所 | Method for monitoring expansion and shrinkage deformation of deep soil body under influence of hot and rainy climate |
| CN102866093A (en) * | 2012-09-04 | 2013-01-09 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102866093B (en) * | 2012-09-04 | 2014-12-10 | 中国农业大学 | Porous medium biological clogging simulation test device and simulation test evaluation method |
| CN102944504A (en) * | 2012-10-22 | 2013-02-27 | 南通市建设工程质量检测站有限公司 | Vertical permeable performance tester |
| CN103323576A (en) * | 2013-06-09 | 2013-09-25 | 河海大学 | True three-dimensional swell-shrink instrument |
| CN104359818B (en) * | 2014-10-31 | 2017-01-25 | 盐城工学院 | System for testing permeability coefficient of straw material |
| CN104359818A (en) * | 2014-10-31 | 2015-02-18 | 盐城工学院 | System for testing permeability coefficient of straw material |
| CN104880396B (en) * | 2015-05-26 | 2017-12-05 | 上海大学 | The soil body two is to flow model in porous media device and method of testing under outside charge function |
| CN104880396A (en) * | 2015-05-26 | 2015-09-02 | 上海大学 | Soil body two-direction seepage model device under external load action and testing method |
| CN105910973A (en) * | 2016-05-12 | 2016-08-31 | 长沙理工大学 | Stress-related coarse-grained soil seepage deformation characteristic tester and test method |
| CN108956409A (en) * | 2017-05-19 | 2018-12-07 | 中国地质科学院水文地质环境地质研究所 | A kind of minute-pressure permeameter and test method |
| CN108956409B (en) * | 2017-05-19 | 2021-01-29 | 中国地质科学院水文地质环境地质研究所 | Micro-pressure permeameter and test method |
| CN107167410A (en) * | 2017-06-01 | 2017-09-15 | 三峡大学 | A kind of periodicity comes and goes seepage experimental apparatus and method |
| CN107167410B (en) * | 2017-06-01 | 2023-05-02 | 三峡大学 | Periodic round-trip seepage experimental device and method |
| CN107014739A (en) * | 2017-06-16 | 2017-08-04 | 成都理工大学 | Undisturbed soil infiltration experiment device and the method for measuring infiltration coefficient |
| CN107014739B (en) * | 2017-06-16 | 2023-09-08 | 成都理工大学 | Undisturbed soil permeability test device and permeability coefficient measurement method |
| CN108007840A (en) * | 2017-12-11 | 2018-05-08 | 合肥工业大学 | A kind of permeability apparatus that can simulate waterpower gradient magnitude and direction dynamic changing condition |
| CN109406373A (en) * | 2018-12-17 | 2019-03-01 | 水利部交通运输部国家能源局南京水利科学研究院 | Frozen-thawed cycled acts on lower soil body osmotic coefficient measuring instrument and application method |
| CN110082274B (en) * | 2019-05-22 | 2024-05-10 | 陕西秦海检测科技有限公司 | Large-scale original grading coarse-grained soil horizontal penetration deformation tester and test method |
| CN110082274A (en) * | 2019-05-22 | 2019-08-02 | 陕西秦海检测科技有限公司 | It is large-scale simple with coarse-grained soil horizontal permeation testing apparatus for heat deformation and test method |
| CN110261277A (en) * | 2019-07-05 | 2019-09-20 | 河海大学 | A kind of determining experimental rig and method for being saturated soil sample critical hydraulic gradient in situ |
| CN110907332A (en) * | 2019-12-11 | 2020-03-24 | 天津市市政工程设计研究院 | Testing device and method for horizontal permeability coefficient of shallow soil |
| CN111024590A (en) * | 2020-01-13 | 2020-04-17 | 昆明理工大学 | Can fix on-spot measurement bulk material penetration test device of soil body |
| CN111024590B (en) * | 2020-01-13 | 2024-04-26 | 昆明理工大学 | Site measurement discrete material penetration test device capable of fixing soil body |
| CN112816387B (en) * | 2020-12-31 | 2022-07-12 | 北京市水利规划设计研究院 | Method and device for determining permeability coefficient and storage medium |
| CN112816387A (en) * | 2020-12-31 | 2021-05-18 | 北京市水利规划设计研究院 | Method and device for determining permeability coefficient and storage medium |
| CN112964562A (en) * | 2021-01-28 | 2021-06-15 | 浙江工业大学 | Triaxial test equipment for measuring eroded soil particles under action of seepage force |
| CN113092718A (en) * | 2021-03-29 | 2021-07-09 | 湖北工业大学 | Indoor geotechnical saturation device for preventing chemical leaching and test method |
| CN113155697A (en) * | 2021-03-30 | 2021-07-23 | 中国电建集团西北勘测设计研究院有限公司 | High-pressure-resistant permeameter device suitable for filling materials and use method |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |