CN103149341A - Consolidation and penetration measuring device - Google Patents
Consolidation and penetration measuring device Download PDFInfo
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- CN103149341A CN103149341A CN2013100419735A CN201310041973A CN103149341A CN 103149341 A CN103149341 A CN 103149341A CN 2013100419735 A CN2013100419735 A CN 2013100419735A CN 201310041973 A CN201310041973 A CN 201310041973A CN 103149341 A CN103149341 A CN 103149341A
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Abstract
The invention belongs to the technical field of soil test research, and particularly relates to a consolidation and penetration measuring device. The measuring device can carry out a consolidation test and a penetration test at the same time. The consolidation and penetration measuring device enables test operation to be simple and convenient and enables test results to be accurate. The consolidation and penetration measuring device comprises a pressurization cylinder, and is characterized in that a pressurization piston is arranged in the pressurization cylinder; the pressurization piston can move upwards and downwards in an inner cavity of the pressurization cylinder, and gaps are reserved between the pressurization piston and a cylinder wall of the pressurization cylinder; and a water inlet is formed in a base of the pressurization cylinder, and a water overflow port is formed in the cylinder wall on the upper portion of the pressurization cylinder.
Description
Technical field
The invention belongs to the soil test studying technological domain, particularly relate to a kind of fixed penetration test device, this determinator can carry out consolidation test and permeability test simultaneously.
Background technology
In the soil test research field, need to measure the infiltration coefficient of soil and the relation between void ratio or unit settling amount in a lot of situations.The key instrument that carries out the soil sample consolidation test in prior art is the consolidometer in " consolidation test " described in (GB/T50123-1999) for " Standard for test methods of earthworks ", and the key instrument that carries out the soil sample permeability test is the falling head permeameter in the constant head permeameter in " constant head permeability test " described in (GB/T50123-1999) and " Standard for test methods of earthworks " " variable head permeability test " described in (GB/T50123-1999) for " Standard for test methods of earthworks ".Above-mentioned instrument only can carry out simple consolidation test or permeability test.The instrument of the soil sample layering need to being packed into when carrying out permeability test knocks certain thickness with wooden mallet, controlling void ratio, but knocks the void ratio that is difficult to accurately control soil sample with wooden mallet, causes test figure inaccurate.
At present, be that the patent No. is 200910022269.9 Chinese patent " the fixed permeameter of high pressure " with the immediate test unit of the present invention.Its pressurizing piston and to add between the barrel of pressure cylinder be enclosed construction causes pressurizing piston and adds between the barrel of pressure cylinder friction force larger, and it is very large to have reached hermetic effect difficulty, and test findings is inaccurate.
Summary of the invention
For the problem that prior art exists, the invention provides and a kind ofly make that test operation is easy, test findings fixed penetration test device accurately.
To achieve these goals, the present invention adopts following technical scheme: a kind of fixed penetration test device, comprise adding pressure cylinder, and be characterized in being provided with pressurizing piston within adding pressure cylinder; Described pressurizing piston can move up and down at the inner chamber that adds pressure cylinder, and pressurizing piston and add between the barrel of pressure cylinder and leave the gap; Be provided with water inlet in the described base that adds pressure cylinder, be provided with gap at the barrel place, top that adds pressure cylinder.
Add the base upper surface of pressure cylinder and the lower surface of pressurizing piston is provided with groove described.
Also permeable hole can be set on described pressurizing piston, to facilitate water by permeable hole the flowing freely in adding pressure cylinder of pressurizing piston.
Be provided with determining displacement apparatus installation support on described pressurizing piston.
The described pressure cylinder that adds is set to integral type or split type, described split type be the form that stack shell separates with base so that the dismounting soil sample.
Beneficial effect of the present invention:
1, gap of the present invention is also measured hole, uses easy to operate;
2, the present invention can carry out permeability test under different consolidation pressures, or carries out consolidation test under the seepage force effect, makes each test figure have good correlativity; And owing to using same soil sample to carry out permeability test under different consolidation condition, can reduce the workload of the preparation of soil sample and the error that causes in preparation of soil sample process;
3, pressurizing piston of the present invention and add between the barrel of pressure cylinder and leave the gap, so that water is in pressurizing piston and add between the barrel of pressure cylinder and freely pass through, solved pressurizing piston in the prior art and added between the barrel of pressure cylinder the large and friction force of sealing difficulty to the problem that experimental result affects, made the test findings accurate.
Description of drawings
Fig. 1 is the structural representation of fixed penetration test device of the present invention;
In figure, 1-pressurizing piston, 2-add pressure cylinder, 3-water inlet, 4-gap, 5-determining displacement apparatus installation support, 6-permeable stone, 7-filter paper, 8-soil sample, 9-graduated cylinder, 10-gap, 11-base.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of fixed penetration test device comprises adding pressure cylinder 2, is provided with pressurizing piston 1 within adding pressure cylinder 2; Described pressurizing piston 1 can move up and down at the inner chamber that adds pressure cylinder 2, and pressurizing piston 1 and add between the barrel of pressure cylinder 2 and leave gap 10, so that water is in pressurizing piston 1 and add between the barrel of pressure cylinder 2 and freely pass through; Be provided with water inlet 3 in the described base 11 that adds pressure cylinder 2, be provided with gap 4 at the barrel place, top that adds pressure cylinder 2, gap 4 is also measured hole.
Add base 11 upper surfaces of pressure cylinder 2 and the lower surface of pressurizing piston 1 is provided with appropriate groove described.
Also permeable hole can be set on described pressurizing piston 1, to facilitate water by permeable hole the flowing freely in adding pressure cylinder 2 of pressurizing piston 1.
Be provided with determining displacement apparatus installation support 5 on described pressurizing piston 1.
The described pressure cylinder 2 that adds is set to integral type or split type, described split type be the form that stack shell separates with base 11 so that dismounting soil sample 8.
The below illustrates and uses the present invention to carry out the process of fixed permeability test take clay as example:
Step 1: permeable stone 6 is put into the bottom that adds pressure cylinder 2, put one deck filter paper 7 on permeable stone 6, and soil sample 8 is put into the inner chamber that adds pressure cylinder 2; Put again one deck filter paper 7 on soil sample 8, put permeable stone 6 and put pressurizing piston 1 on permeable stone 6;
Step 2: a dial gauge is installed respectively on the both sides of the determining displacement apparatus installation support 5 on pressurizing piston 1, and the contact of two dial gauges is withstood on respectively on the upper surface that adds pressure cylinder 2; Be installed into water pipe on water inlet 3, flowmeter be installed on gap 4 or at the outer graduated cylinder 9 that arranges of gap 4, device of the present invention be arranged on pressing machine;
Step 3: by being arranged on water inlet pipe on water inlet 3 to adding the interior water filling of pressure cylinder 2, make soil sample 8 exhausts, saturated;
Step 4: by pressing machine, soil sample 8 is applied certain axle pressure, read the axial deflection of soil sample 8 by dial gauge; When soil sample 8 stabilization, carry out permeability test;
Step 5: change the axle pressure of pressing machine, again carry out consolidation test and permeability test.
When doing the fixed permeability test of sand, because the particle of sand is larger, the infiltration coefficient of permeable stone 6 may less than the infiltration coefficient of sand, cause the measurement result mistake; So the available metal net replaces permeable stone 6, then use as loaded filter at wire netting upper berth one deck coarse sand replacement filter paper 7.Adopt parallel consolidation test to measure the fixed situation of soil sample 8, can draw the actual compression situation of soil sample 8, eliminate two ends loaded filter and wire netting compression deformation to the impact of test findings, obtain actual void ratio and the unit settling amount of soil sample 8 under the different pressures condition.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (5)
1. a fixed penetration test device, comprise adding pressure cylinder, it is characterized in that being provided with pressurizing piston within adding pressure cylinder; Described pressurizing piston can move up and down at the inner chamber that adds pressure cylinder, and pressurizing piston and add between the barrel of pressure cylinder and leave the gap; Be provided with water inlet in the described base that adds pressure cylinder, be provided with gap at the barrel place, top that adds pressure cylinder.
2. fixed penetration test device according to claim 1 is characterized in that adding the base upper surface of pressure cylinder and the lower surface of pressurizing piston is provided with groove described.
3. fixed penetration test device according to claim 1, is characterized in that being provided with permeable hole on described pressurizing piston.
4. fixed penetration test device according to claim 1, is characterized in that being provided with determining displacement apparatus installation support on described pressurizing piston.
5. fixed penetration test device according to claim 1, is characterized in that the described pressure cylinder that adds is set to integral type or split type, described split type be the form that stack shell separates with base.
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| CN2013100419735A CN103149341A (en) | 2013-02-04 | 2013-02-04 | Consolidation and penetration measuring device |
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| CN2013100419735A CN103149341A (en) | 2013-02-04 | 2013-02-04 | Consolidation and penetration measuring device |
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| CN103149341A true CN103149341A (en) | 2013-06-12 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558041A (en) * | 2013-10-28 | 2014-02-05 | 哈尔滨工业大学深圳研究生院 | Model test device and test method for measuring soil body displacement under action of in-situ stress filed |
| CN103776750A (en) * | 2014-03-05 | 2014-05-07 | 上海市城市建设设计研究总院 | Automatic tester for variable head permeability of soil |
| CN105842137A (en) * | 2015-01-15 | 2016-08-10 | 轻工业环境保护研究所 | Soil gas permeability tester |
| CN107063974A (en) * | 2017-06-16 | 2017-08-18 | 山东大学 | A kind of pressable cohesive soil osmotic coefficient investigating pilot system and test method |
| CN107643241A (en) * | 2016-11-30 | 2018-01-30 | 国家安全生产监督管理总局化学品登记中心 | A kind of A types rendrock infiltration experiment device |
| CN109100284A (en) * | 2018-10-24 | 2018-12-28 | 辽宁工程技术大学 | A kind of device and method that can be measured CHARACTERISTICS OF TAILINGS SAND and consolidate permeability parameters in real time |
| CN109115671A (en) * | 2018-10-17 | 2019-01-01 | 中交第航务工程局有限公司 | A kind of soil body penetration consolidation device and its application method with water cavity |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
| CN110596344A (en) * | 2019-07-26 | 2019-12-20 | 河南水利与环境职业学院 | Test device for testing expansion coefficient of soil texture |
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558041B (en) * | 2013-10-28 | 2016-08-17 | 哈尔滨工业大学深圳研究生院 | Measure model test apparatus and the test method of land movement under in-situ stress field action |
| CN103558041A (en) * | 2013-10-28 | 2014-02-05 | 哈尔滨工业大学深圳研究生院 | Model test device and test method for measuring soil body displacement under action of in-situ stress filed |
| CN103776750A (en) * | 2014-03-05 | 2014-05-07 | 上海市城市建设设计研究总院 | Automatic tester for variable head permeability of soil |
| CN105842137A (en) * | 2015-01-15 | 2016-08-10 | 轻工业环境保护研究所 | Soil gas permeability tester |
| CN107643241A (en) * | 2016-11-30 | 2018-01-30 | 国家安全生产监督管理总局化学品登记中心 | A kind of A types rendrock infiltration experiment device |
| CN107063974B (en) * | 2017-06-16 | 2019-04-26 | 山东大学 | A kind of pressable cohesive soil osmotic coefficient investigating pilot system and test method |
| CN107063974A (en) * | 2017-06-16 | 2017-08-18 | 山东大学 | A kind of pressable cohesive soil osmotic coefficient investigating pilot system and test method |
| CN110361258A (en) * | 2018-04-10 | 2019-10-22 | 中国矿业大学(北京) | A kind of saturable sliding high-pressure consolidation apparatus device |
| CN109115671A (en) * | 2018-10-17 | 2019-01-01 | 中交第航务工程局有限公司 | A kind of soil body penetration consolidation device and its application method with water cavity |
| CN109115671B (en) * | 2018-10-17 | 2023-10-17 | 中交第一航务工程局有限公司 | Soil body infiltration consolidation device with water cavity and application method thereof |
| CN109100284A (en) * | 2018-10-24 | 2018-12-28 | 辽宁工程技术大学 | A kind of device and method that can be measured CHARACTERISTICS OF TAILINGS SAND and consolidate permeability parameters in real time |
| CN110596344A (en) * | 2019-07-26 | 2019-12-20 | 河南水利与环境职业学院 | Test device for testing expansion coefficient of soil texture |
| CN113495048A (en) * | 2021-09-08 | 2021-10-12 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
| CN113495048B (en) * | 2021-09-08 | 2021-11-16 | 南通华兴石油仪器有限公司 | High-pressure seepage test device |
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Application publication date: 20130612 |