CN205157395U - Gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure - Google Patents
Gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure Download PDFInfo
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- CN205157395U CN205157395U CN201520979233.0U CN201520979233U CN205157395U CN 205157395 U CN205157395 U CN 205157395U CN 201520979233 U CN201520979233 U CN 201520979233U CN 205157395 U CN205157395 U CN 205157395U
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Abstract
The utility model discloses a gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure, its characterized in that: including container, pressure measurement and load device, be provided with baffle, down baffle, left baffle and right baffle in the inner chamber space of container, go up the baffle, down baffle, left baffle and right baffle enclose the first space that becomes to be used for to hold solid waste, upward baffle, lower baffle, left baffle and right baffle are located top, below, left side, the right side in first space respectively, and pressure measurement includes first air inlet manometer, first gas outlet manometer, second air inlet manometer, second gas outlet manometer. The utility model discloses gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure can be under test soil sample non - saturated condition the level of surveing respectively to, vertical to gaseous osmotic coefficient, further obtain the anisotropic coefficient to the anisotropic of the gaseous permeability of research unsaturated soil.
Description
Technical field
The utility model relates to a kind of unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer.
Background technology
Gas permeability, also known as gas transmission coefficient (P), is under steady temperature and unit pressure difference, stable through time, through the volume of the gas of sample unit thickness, unit area in the unit interval.It is determined by the barrier property of material itself and material both sides test gas partial pressure difference two factors.Gas permeation rate is relevant with sample individuality with test environment, and gas permeation amount is only relevant with test sample self and have nothing to do with environment, then only relevant with the material of sample as gas transmission coefficient, is the character of material itself.
And infiltration coefficient model is an aspect of research unsaturated soil flow phenomenon.In geotechnical engineering problems, usually run into the problem of unsaturated soil, such as the civil engineering such as road, house, means of transportation all over the world all will be subject to having a strong impact on of swelled ground for a long time.In addition, entering of gas also can form unsatalation zone in saturated clays, such as studies the gas Percolation Law in unsaturated rockmass, has important theory and practical engineering value for the pneumatic process construction in saturated clay.
And gas permeability coefficient method of testing has indoor and outdoors two kinds, the utility model is exactly a kind of test unit measuring unsaturation soil body gas permeability coefficient at indoor normal atmospheric pressure.At present, domestic and international existing unsaturation soil body gas permeability coefficient testing tool is improved space.First, the size of permeability coefficient tester is mostly less, needs first to carry out fragmentation to sample and reinvents process, have comparatively large disturbances, cause comparatively big error.Secondly, existing test apparatus function singleness, all can only measure level to or vertical infiltration coefficient, and a lot of unsaturated soil has obvious anisotropy.Therefore how to design a kind of unsaturated soil gas permeability coefficient analyzer, the multidirectional unsaturated soil of detection simultaneously gas permeability coefficient can be realized, become industry technician technical matters to be solved.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, and provides a kind of reasonable in design, can realize the unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer of multidirectional detection gas permeability coefficient.
The technical scheme in the invention for solving the above technical problem is: a kind of unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer, is characterized in that: comprise container, pressure-detecting device and load device, be provided with upper spacer in the intracavity space of described container, lower clapboard, left clapboard and right clapboard, upper spacer, lower clapboard, left clapboard and right clapboard surround the first space for holding test soil sample, described upper spacer, lower clapboard, left clapboard and right clapboard lay respectively at the top in the first space, below, left side, right side, pressure-detecting device comprises the first air intake opening measuring cell, first gas outlet measuring cell, second air intake opening measuring cell, second gas outlet measuring cell, the manometric measuring junction of first air intake opening is arranged in the intracavity space below lower clapboard, the first manometric measuring junction in gas outlet is arranged in the intracavity space above upper spacer, and upper end and the lower end of container are respectively arranged with gas outlet, lower air intake opening, the manometric measuring junction of the second air intake opening is arranged in the intracavity space on the left of left clapboard, and the second manometric measuring junction in gas outlet is arranged in the intracavity space on the right side of right clapboard, and the left end of container and right-hand member are respectively arranged with left air intake opening, right air intake opening, upper gas outlet, lower air intake opening, left air intake opening, right air intake opening is provided with stop valve, described load device comprises depression bar and pressure transducer, described depression bar respective container vertically slides setting, the lower end of depression bar is goed deep in the intracavity space above upper spacer and the lower end of depression bar is against on upper spacer, the upper end of depression bar is provided with the pressure transducer for measuring downward load, described load device also comprises the displacement transducer for measuring depression bar displacement, upper spacer, lower clapboard, left clapboard and right clapboard offer air hole, described left air intake opening, lower air intake opening connects draft tube, and draft tube is connected to source of the gas.The utility model unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer can the level of mensuration respectively under soil sample unsaturated state to, vertical gas permeability coefficient, obtain coefficient of anisotropy further, the anisotropy of research unsaturation soil body gas permeability; Instrument can be vertical while infiltration coefficient in mensuration, opens horizontal direction gas motion passage, can study the gas simultaneous transport rule of vertical direction and horizontal direction; By load device compression verification soil sample, can measure the infiltration coefficient of different size soil sample, research specimen size effect is on infiltrative impact.
As preferably, also comprise control device, described control device comprises touch-screen, single-chip microcomputer, described first air intake opening measuring cell, the first gas outlet measuring cell, the second air intake opening measuring cell, the second gas outlet measuring cell, stop valve, displacement transducer, pressure transducer all connect single-chip microcomputer, and described single-chip microcomputer connects touch-screen.
As preferably, the upper end of depression bar is provided with electric hydaulic bar, and described electric hydaulic bar connects single-chip microcomputer, and the expansion link of described electric hydaulic bar withstands on the upper end of depression bar downwards.
As preferably, upper spacer, lower clapboard, left clapboard and right clapboard are rectangular, and the length of side of upper spacer, lower clapboard, left clapboard and right clapboard is 30CM ~ 60CM.
The utility model compared with prior art, have the following advantages and effect: the utility model unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer can the level of mensuration respectively under soil sample unsaturated state to, vertical gas permeability coefficient, obtain coefficient of anisotropy further, the anisotropy of research unsaturation soil body gas permeability; Instrument can be vertical while infiltration coefficient in mensuration, opens horizontal direction gas motion passage, can study the gas simultaneous transport rule of vertical direction and horizontal direction; By load device compression verification soil sample, can measure the infiltration coefficient of different size soil sample, research specimen size effect is on infiltrative impact.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer.
Fig. 2 is the connection block diagram of the utility model embodiment control device.
Embodiment
Below in conjunction with accompanying drawing, also by embodiment, the utility model is described in further detail, and following examples are that the utility model is not limited to following examples to explanation of the present utility model.
See Fig. 1-Fig. 2, the present embodiment unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer, comprises container 1, pressure-detecting device, load device and control device, be provided with upper spacer 21 in the intracavity space of described container 1, lower clapboard 22, left clapboard 23 and right clapboard 24, upper spacer 21, lower clapboard 22, left clapboard 23 and right clapboard 24 surround the first space 11 for holding solid discarded object, described upper spacer 21, lower clapboard 22, left clapboard 23 and right clapboard 24 lay respectively at the top in the first space 11, below, left side, right side, pressure-detecting device comprises the first air intake opening measuring cell 31, first gas outlet measuring cell 32, second air intake opening measuring cell 33, second gas outlet measuring cell 34, the measuring junction of the first air intake opening measuring cell 31 is arranged in the intracavity space below lower clapboard 22, the measuring junction of the first gas outlet measuring cell 32 is arranged in the intracavity space above upper spacer 21, and the upper end of container 1 and lower end are respectively arranged with gas outlet 41, lower air intake opening 42, the measuring junction of the second air intake opening measuring cell 33 is arranged in the intracavity space on the left of left clapboard 23, the measuring junction of the second gas outlet measuring cell 34 is arranged in the intracavity space on the right side of right clapboard 24, and the left end of container 1 and right-hand member are respectively arranged with left air intake opening 43, right air intake opening, upper gas outlet 41, lower air intake opening 42, left air intake opening 43, right air intake opening is provided with stop valve 61, described load device comprises depression bar 51 and pressure transducer 36, described depression bar 51 respective container 1 vertically slides setting, the lower end of depression bar 51 is goed deep in the intracavity space above upper spacer 21 and the lower end of depression bar 51 is against on upper spacer 21, the upper end of depression bar 51 is provided with the pressure transducer 36 for measuring downward load, described load device also comprises the displacement transducer 35 for measuring depression bar 51 displacement, upper spacer 21, lower clapboard 22, left clapboard 23 and right clapboard 24 offer air hole, described left air intake opening 43, lower air intake opening 42 connects draft tube 62, and draft tube 62 is connected to source of the gas 63.The utility model unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer can the level of mensuration respectively under test soil sample unsaturated state to, vertical gas permeability coefficient, obtain coefficient of anisotropy further, the anisotropy of research unsaturation soil body gas permeability; Instrument can be vertical while infiltration coefficient in mensuration, opens horizontal direction gas motion passage, can study the gas simultaneous transport rule of vertical direction and horizontal direction; Test soil sample by load device, can measure the infiltration coefficient of different size soil sample, research specimen size effect is on infiltrative impact.Described control device comprises touch-screen, single-chip microcomputer, described first air intake opening measuring cell 31, first gas outlet measuring cell 32, second air intake opening measuring cell 33, second gas outlet measuring cell 34, stop valve 61, displacement transducer 35, pressure transducer 36 all connect single-chip microcomputer, and described single-chip microcomputer connects touch-screen.The upper end of depression bar 51 is provided with electric hydaulic bar 52, and described electric hydaulic bar 52 connects single-chip microcomputer, and the expansion link of described electric hydaulic bar 52 withstands on the upper end of depression bar 51 downwards.Upper spacer 21, lower clapboard 22, left clapboard 23 and right clapboard 24 are rectangular, and the length of side of upper spacer 21, lower clapboard 22, left clapboard 23 and right clapboard 24 is 30CM ~ 60CM.
Above content described in this instructions is only to the explanation of the utility model example.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of the utility model instructions or surmount this scope as defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (4)
1. a unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer, is characterized in that: comprise container, pressure-detecting device and load device, be provided with upper spacer in the intracavity space of described container, lower clapboard, left clapboard and right clapboard, upper spacer, lower clapboard, left clapboard and right clapboard surround the first space for holding test soil sample, described upper spacer, lower clapboard, left clapboard and right clapboard lay respectively at the top in the first space, below, left side, right side, pressure-detecting device comprises the first air intake opening measuring cell, first gas outlet measuring cell, second air intake opening measuring cell, second gas outlet measuring cell, the manometric measuring junction of first air intake opening is arranged in the intracavity space below lower clapboard, the first manometric measuring junction in gas outlet is arranged in the intracavity space above upper spacer, and upper end and the lower end of container are respectively arranged with gas outlet, lower air intake opening, the manometric measuring junction of the second air intake opening is arranged in the intracavity space on the left of left clapboard, and the second manometric measuring junction in gas outlet is arranged in the intracavity space on the right side of right clapboard, and the left end of container and right-hand member are respectively arranged with left air intake opening, right air intake opening, upper gas outlet, lower air intake opening, left air intake opening, right air intake opening is provided with stop valve, described load device comprises depression bar and pressure transducer, described depression bar respective container vertically slides setting, the lower end of depression bar is goed deep in the intracavity space above upper spacer and the lower end of depression bar is against on upper spacer, the upper end of depression bar is provided with the pressure transducer for measuring downward load, described load device also comprises the displacement transducer for measuring depression bar displacement, upper spacer, lower clapboard, left clapboard and right clapboard offer air hole, described left air intake opening, lower air intake opening connects draft tube, and draft tube is connected to source of the gas.
2. unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer according to claim 1, it is characterized in that: also comprise control device, described control device comprises touch-screen, single-chip microcomputer, described first air intake opening measuring cell, the first gas outlet measuring cell, the second air intake opening measuring cell, the second gas outlet measuring cell, stop valve, displacement transducer, pressure transducer all connect single-chip microcomputer, and described single-chip microcomputer connects touch-screen.
3. unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer according to claim 2, it is characterized in that: the upper end of depression bar is provided with electric hydaulic bar, described electric hydaulic bar connects single-chip microcomputer, and the expansion link of described electric hydaulic bar withstands on the upper end of depression bar downwards.
4. unsaturated soil normal atmospheric pressure gas permeability coefficient analyzer according to claim 1, is characterized in that: upper spacer, lower clapboard, left clapboard and right clapboard are rectangular, and the length of side of upper spacer, lower clapboard, left clapboard and right clapboard is 30CM ~ 60CM.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520979233.0U CN205157395U (en) | 2015-11-30 | 2015-11-30 | Gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure |
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| CN201520979233.0U CN205157395U (en) | 2015-11-30 | 2015-11-30 | Gaseous infiltration coefficient measurement appearance of unsaturated soil normal atmospheric pressure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053317A (en) * | 2016-06-13 | 2016-10-26 | 同济大学 | Unsaturated garbage soil bidirectional gas permeability coefficient determinator |
| CN106596379A (en) * | 2016-12-26 | 2017-04-26 | 立方通达实业（天津）有限公司 | Bidirectional consolidation permeameter |
| 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 |
| CN107831106A (en) * | 2017-12-29 | 2018-03-23 | 河北省地质学会 | Intelligent permeability survey testing stand |
| CN108318401A (en) * | 2018-04-04 | 2018-07-24 | 昆明理工大学 | One kind being suitable for anisotropy permeability coefficient test device under soil solidifying stress |
| CN108344668A (en) * | 2018-05-09 | 2018-07-31 | 浙江大学 | Experimental provision for testing unsaturation dielectric gas diffusion coefficient and infiltration coefficient |
| CN109001098A (en) * | 2018-08-07 | 2018-12-14 | 西南大学 | A kind of instantaneous Penetration Signature tester of soil and soil infiltration characteristics calculation method |
| CN109085103A (en) * | 2017-06-13 | 2018-12-25 | 南京林业大学 | A kind of test device and test method of big gap bituminous concrete infiltration coefficient |
| CN109883892A (en) * | 2019-03-26 | 2019-06-14 | 福州大学 | Gas diffusivity measuring device and method in a kind of unsaturated soil |
| CN110687033A (en) * | 2019-11-13 | 2020-01-14 | 哈尔滨工业大学（深圳） | Penetration test device for researching internal erosion anisotropy of soil body under stress action |
| CN111351741A (en) * | 2020-03-17 | 2020-06-30 | 中国海洋大学 | Ocean sediment gas permeability anisotropy testing device and using method |
-
2015
- 2015-11-30 CN CN201520979233.0U patent/CN205157395U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053317A (en) * | 2016-06-13 | 2016-10-26 | 同济大学 | Unsaturated garbage soil bidirectional gas permeability coefficient determinator |
| CN106596379A (en) * | 2016-12-26 | 2017-04-26 | 立方通达实业（天津）有限公司 | Bidirectional consolidation permeameter |
| CN109085103A (en) * | 2017-06-13 | 2018-12-25 | 南京林业大学 | A kind of test device and test method of big gap bituminous concrete infiltration coefficient |
| 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 |
| 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 |
| CN107831106B (en) * | 2017-12-29 | 2020-03-03 | 河北省地质学会 | Intelligent permeability measurement test bed |
| CN107831106A (en) * | 2017-12-29 | 2018-03-23 | 河北省地质学会 | Intelligent permeability survey testing stand |
| CN108318401A (en) * | 2018-04-04 | 2018-07-24 | 昆明理工大学 | One kind being suitable for anisotropy permeability coefficient test device under soil solidifying stress |
| CN108344668A (en) * | 2018-05-09 | 2018-07-31 | 浙江大学 | Experimental provision for testing unsaturation dielectric gas diffusion coefficient and infiltration coefficient |
| CN109001098A (en) * | 2018-08-07 | 2018-12-14 | 西南大学 | A kind of instantaneous Penetration Signature tester of soil and soil infiltration characteristics calculation method |
| CN109001098B (en) * | 2018-08-07 | 2020-02-21 | 西南大学 | Soil instantaneous permeability characteristic tester and soil permeability characteristic calculation method |
| CN109883892A (en) * | 2019-03-26 | 2019-06-14 | 福州大学 | Gas diffusivity measuring device and method in a kind of unsaturated soil |
| CN109883892B (en) * | 2019-03-26 | 2021-11-30 | 福州大学 | Device and method for measuring gas diffusion coefficient in unsaturated soil |
| CN110687033A (en) * | 2019-11-13 | 2020-01-14 | 哈尔滨工业大学（深圳） | Penetration test device for researching internal erosion anisotropy of soil body under stress action |
| CN111351741A (en) * | 2020-03-17 | 2020-06-30 | 中国海洋大学 | Ocean sediment gas permeability anisotropy testing device and using method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161130 |