CN205404360U - But ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient - Google Patents
But ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient Download PDFInfo
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- CN205404360U CN205404360U CN201620173798.4U CN201620173798U CN205404360U CN 205404360 U CN205404360 U CN 205404360U CN 201620173798 U CN201620173798 U CN 201620173798U CN 205404360 U CN205404360 U CN 205404360U
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Abstract
The utility model discloses originally, a but ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient is provided, including preventing the evaporation and clapping gas device, experiment segment, water level observation device, controllable flood peak water supply installation, controllable flood peak drainage device and flood peak adjusting fixtures device. The utility model discloses simple structure, convenient to use, the osmotic coefficient and feedwater degree of accurate determination of ground have extensive application prospect simultaneously. If can help the student better to understand the determination principle of feedwater degree and permeability as instruments used for education extensively with in the hydrogeology research, and but the calculation of water resource balance, phreatic fluctuation prediction, the calculation of phreatic water produced quantity, agricultural drain ditch, hidden pipe depth of flute, interval calculation, field irrigation and drainage are calculated underground in putting into production, hydrogeological parameter calculation such as supply coefficient, rainfall infiltration supply coefficient are infiltrated in the irrigation to and in all kinds of researchs relevant with groundwater.
Description
Technical field
This utility model relates to a kind of Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient, belongs to Geotechnical Parameter property testing field.
Background technology
At groundwater resources EQUILIBRIUM CALCULATION FOR PROCESS, diving dynamic prediction, the calculating of phreatic water allowable exploitation, farmland drainage ditch, hidden pipe ditch depth, distance computation, field irrigation and drain calculation, the Irrigation Infiltration supply hydrogeological parameter calculation such as coefficient, Rain penetration supply variations, and in all kinds of researchs relevant with subsoil water, specific yield not only directly influences the reliability calculated with achievement in research with infiltration coefficient, and parameter also has the feature being prone to carry out areas comprehensive He divert from one use to another.Along with the growing tension of water resource and large-scale developing and utilizing of groundwater resources, people start to be devoted to method and the device thereof of research specific yield and osmotic coefficient investigating.
Ground specific yield refers to that exploiting groundwater makes level of ground water decline, original zone of saturation ground space Zhong Shui, will disengage under gravity, and be specifically defined as: during decline of groundwater level unit volume, disengages the volume of water and the ratio of drainage volume, represents with μ.In currently practical production application, specific yield generally adopts specific yield instrument to be measured, but current specific yield instrument exists some shortcoming following:
(1) before carrying out specific yield experiment, it is necessary to demarcate the negative pressure value of permeable stone.And the calibration process of permeable stone negative pressure value is loaded down with trivial details, the reason that the not readily understood permeable stone negative pressure value of student is demarcated, and the specific yield measured is relevant with the size of permeable stone negative pressure value；
(2) the specific yield experiment instrument having is in the process measuring unconsolidated rock sample specific yield, it is impossible to demonstrate the change of water level and the relation of water-break amount intuitively；
(3) size of specific yield is relevant with the buried depth of initial groundwater level.When initial groundwater level buried depth is less than the maximum capillary water height of loose earth sample, after groundwater level declines, gravitational water translates into sustained capillary water and remaines on groundwater level, so that specific yield is less than normal.The specific yield that existing specific yield experiment instrument measures is a definite value, and its experimentation can not reflect the Changing Pattern that specific yield size occurs with the change of initial subsoil water depth to water.
The permeability of ground refers to the performance of rock mass transmission water or other fluids.No matter being tap ground water resources or oil gas, still prevent the harm (such as mine pit water discharge, reservoir leakage) of subsoil water, ground penetrating power all has great importance.Characterizing the infiltrative quantitative target of ground is infiltration coefficient, represents with K, is important hydrogeological parameter.Current infiltration coefficient device is broadly divided into constant head and varying head darcy experimental provision, CN103149143A and the CN204027972U that such as Chinese patent is announced, they are respectively directed to different Practical Project construction requirements, it is primarily adapted for use in field and quickly roughly Rock And Soil is carried out the mensuration of infiltration coefficient, but need to ensure the accuracy of infiltration coefficient when simulating pollution thing is migrated.
In sum, current darcy experimental provision and specific yield instrument, can only individually measure infiltration coefficient and specific yield, and loaded down with trivial details in the process of mensuration, therefore lack a kind of Geotechnical Parameter analyzer that can simultaneously measure specific yield and infiltration coefficient.
Summary of the invention
In order to solve the deficiencies in the prior art, this utility model provides a kind of Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient, can simultaneously accurately Rock And Soil specific yield and infiltration coefficient.
This utility model is that its technical problem of solution be the technical scheme is that and provides a kind of Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient, earth pillar including bottom surface sealing, upper bottom surface opening, the upper bottom surface of described earth pillar is provided with vaporization prevention lid, vaporization prevention lid is provided with passage, and vacuum pumping pump connects with passage；The horizontal poly (methyl methacrylate) plate with holes having surface to lay gauze of earth pillar lower inside, the cavity between described poly (methyl methacrylate) plate with holes and earth pillar bottom surface forms steady hydroecium；Cavity between poly (methyl methacrylate) plate with holes and earth pillar upper bottom surface is divided into 2 cavitys by the lucite spacer with holes vertically placed, respectively water-level observation pipe and sample room, the sealing of going to the bottom of water-level observation pipe, lucite spacer with holes is positioned at the surface of water-level observation pipe and indicates scale, and the surface being positioned at sample room is equipped with gauze；The bottom surface of earth pillar offers water supply hole and osculum, and water supply hole is connected with controlled head water supply installation by being provided with the feed pipe of feed water valve, and osculum is connected with controlled head drainage arrangement by being provided with the drain pipe of drain valve；Described controlled head water supply installation includes the box body A lacking end face, the baffle plate A that its inner chamber is divided into 2 cavitys it is provided with in box body A, the baffle plate A height height not higher than box body A, one of them cavity bottom is provided with the water supply installation apopore connected with feed pipe and the water supply installation inlet opening connected with water supply installation water inlet pipe, and another cavity bottom is provided with water supply installation spout hole；Described controlled head drainage arrangement includes the box body B lacking end face, the baffle plate B that its inner chamber is divided into 2 cavitys it is provided with in box body B, the baffle plate B height height not higher than box body B, one of them cavity bottom is provided with the drainage arrangement inlet opening being connected with drain pipe, and another cavity bottom is provided with drainage arrangement spout hole；Described box body A and box body B is slidably connected with vertical rail each through the carriage of the box wall being respectively arranged on box body A and box body B.
The upper edge of described earth pillar is provided with the fixing plate of a circle vaporization prevention lid, and vaporization prevention lid is connected by the fixing plate of screw and vaporization prevention lid.
It is connected by silica gel ring between lucite spacer with holes with poly (methyl methacrylate) plate with holes.
Described water supply installation spout hole connects with water supply installation overflow pipe.
Described drainage arrangement spout hole connects with drainage arrangement overflow pipe.
Described drainage arrangement overflow pipe connects with graduated cylinder.
Described carriage includes the rear wall being arranged at outside the box wall of box body A or box body B, and rear wall is dug the vertical through hole for vertical rail traverse, rear wall is provided with for the interior rotary screw that box body A or box body B is fixing with vertical rail.
This utility model is had advantageous effect in that based on its technical scheme:
(1) this utility model includes vaporization prevention and claps device of air, experimental section, water level observation device, controlled head water supply installation, controlled head drainage arrangement and head regulate fixing device, vaporization prevention and exhaust apparatus include vaporization prevention lid, vaporization prevention lid fixes plate, passage, vacuum pumping pump, experimental section includes earth pillar, gauze, poly (methyl methacrylate) plate with holes, water level observation device includes gauze, poly (methyl methacrylate) plate, water-level observation pipe and solid poly (methyl methacrylate) plate, head regulates fixing device and includes vertical rail, utilize said apparatus Comprehensive Experiment, the impact on specific yield of the initial subsoil water depth to water can be reflected, there is display SEA LEVEL VARIATION directly perceived, permeable stone is not needed to demarcate, advantage simple to operate；
(2) utilize the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient of the present utility model to measure infiltration coefficient and specific yield simultaneously；
(3) time below water level decreasing to sample, can the change of quicklook observed stage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient of the present utility model.
Fig. 2 is vaporization prevention lid fixed plate structure schematic diagram.
Fig. 3 is earth pillar cross-sectional structure schematic diagram.
Fig. 4 is controlled head water supply installation structural representation.
Fig. 5 is earth pillar cross-sectional structure schematic diagram.
nullIn figure: 1-earth pillar，2-sample，3-gauze，4-poly (methyl methacrylate) plate with holes，The steady hydroecium of 5-，6-vaporization prevention lid，7-passage，8-vaporization prevention lid fixes plate，9-screw，10-water-level observation pipe，11-scale，12-lucite spacer with holes，13-feed water valve，14-drain valve，The controlled head water supply installation of 15-，16-water supply installation overflow pipe，17-water supply installation water inlet pipe，18-feed pipe，The controlled head drainage arrangement of 19-，20-baffle plate B，21-drainage arrangement overflow pipe，22-vertical rail，23-drain pipe，The vertical through hole of 24-，The solid lucite tube of 25-，26-support，27-osculum，28-water supply hole，29-screw，30-baffle plate A，31-rear wall，Rotary screw in 32-，33-water supply installation spout hole，34-water supply installation inlet opening，35-water supply installation apopore，36-graduated cylinder，37-vacuum pumping pump.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
This utility model provides a kind of Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient, with reference to Fig. 1, Fig. 2 and Fig. 4, earth pillar 1 including bottom surface sealing, upper bottom surface opening, the upper bottom surface of described earth pillar is provided with vaporization prevention lid 6, vaporization prevention lid is provided with passage 7, and vacuum pumping pump 37 connects with passage；The horizontal poly (methyl methacrylate) plate with holes 4 having surface to lay gauze 3 of earth pillar lower inside, gauze and lucite tube with holes are negligible to the permeation effects of sample；Cavity between described poly (methyl methacrylate) plate with holes and earth pillar bottom surface forms steady hydroecium 5；Cavity between poly (methyl methacrylate) plate with holes and earth pillar upper bottom surface is divided into 2 cavitys by the lucite spacer with holes 12 vertically placed, respectively water-level observation pipe 10 and for filling the sample room of sample 2, the sealing of going to the bottom of water-level observation pipe, lucite spacer with holes is positioned at the surface of water-level observation pipe and indicates scale 11, and the surface being positioned at sample room is equipped with gauze；The bottom surface of earth pillar offers water supply hole 28 and osculum 27, and water supply hole is connected with controlled head water supply installation 15 by being provided with the feed pipe 18 of feed water valve 13, and osculum 27 is connected with controlled head drainage arrangement 19 by being provided with the drain pipe 23 of drain valve 14；Described controlled head water supply installation includes the box body A lacking end face, the baffle plate A30 that its inner chamber is divided into 2 cavitys it is provided with in box body A, the baffle plate A height height not higher than box body A, one of them cavity bottom is provided with the water supply installation apopore 35 connected with feed pipe 17 and the water supply installation inlet opening 34 connected with water supply installation water inlet pipe 17, and another cavity bottom is provided with water supply installation spout hole 33；Described controlled head drainage arrangement 19 includes the box body B lacking end face, the baffle plate B20 that its inner chamber is divided into 2 cavitys it is provided with in box body B, the baffle plate B height height not higher than box body B, one of them cavity bottom is provided with the drainage arrangement inlet opening being connected with drain pipe 23, and another cavity bottom is provided with drainage arrangement spout hole；Described box body A and box body B is slidably connected with vertical rail 22 each through the carriage of the box wall being respectively arranged on box body A and box body B.
The upper edge of described earth pillar is provided with the fixing plate 8 of a circle vaporization prevention lid, and the fixing plate of vaporization prevention lid has screw 29, and vaporization prevention lid is connected with the fixing plate of vaporization prevention lid by the screw 9 mated with screw.
It is connected by silica gel ring between lucite spacer with holes with poly (methyl methacrylate) plate with holes.
Described water supply installation spout hole connects with water supply installation overflow pipe 16.
Described drainage arrangement spout hole connects with drainage arrangement overflow pipe 21.
Described drainage arrangement overflow pipe 21 connects with graduated cylinder 36.
Described carriage includes the rear wall 31 being arranged at outside the box wall of box body A or box body B, and rear wall is dug the vertical through hole 24 for vertical rail traverse, rear wall is provided with for the interior rotary screw 32 that box body A or box body B is fixing with vertical rail.
Support 26 it is also provided with bottom earth pillar.
The shape of earth pillar is not limit, as long as its cross section is equal.Earth pillar can be interior length of side 20cm, the square lucite square column of wall thickness 1cm, long 150cm, poly (methyl methacrylate) plate 4 distance with holes is gone to the bottom 10cm, water-level observation pipe 10 can be shown in Fig. 3, as long as can also as it is shown in figure 5, be separated by lucite spacer 12 with holes between water-level observation pipe and sample room.Need bottom water-level observation pipe to seal, it is possible to use solid lucite tube 25 is pasted onto the bottom of water-level observation pipe.
In the present embodiment, vertical rail can be regulated fixing appliance stand by head and iron rod forms.Head regulates fixing appliance stand and is made by angle steel, is provided with 4 iron rods on support.The top of vaporization prevention lid is the length of side is the square poly (methyl methacrylate) plate of 26cm, and bottom is stained with two pieces can the corresponding silica gel ring buckling the square earth pillar of length of side 20cm and square water level sighting tube that the length of side is 1cm respectively；Side's row poly (methyl methacrylate) plate with one heart of the length of side to be 20cm, the outer length of side be 26cm in the fixing plate of vaporization prevention lid, and the breach of 4cm length is had in the center on a limit, the fixing plate chloroform of vaporization prevention lid is fixed on square earth pillar；Being provided with the screw of corresponding 8 0.5cm on the fixing plate poly (methyl methacrylate) plate of vaporization prevention lid and vaporization prevention lid, covered by vaporization prevention lid on square earth pillar, silica gel ring is just buckled into earth pillar and in water-level observation pipe, can be ensured the sealing of earth pillar by fixed screw；Being provided with steam vent on vaporization prevention lid, to prevent aerofluxus in full water process insufficient, after aerofluxus terminates, steam vent can balance test section inner and outer air pressure.Square earth pillar is interior length of side 20cm, the square lucite post of wall thickness 1cm, long 150cm, and wherein distribution has aperture on one side longitudinal direction, and the lateral extent of aperture is 2cm, is connected with water level observation device；Being provided with poly (methyl methacrylate) plate with holes within the scope of from 10cm place, total length 140cm bottom earth pillar, poly (methyl methacrylate) plate is all stained with gauze up and down；Selected gauze and lucite tube with holes are negligible to the permeation effects of sample；Sample layering is contained in square earth pillar；Earth pillar support is the poly (methyl methacrylate) plate of four high 10cm, is connected with bottom earth pillar by chloroform.Poly (methyl methacrylate) plate width 2cm with holes, long 140cm, by a side of square earth pillar 1 from top down 140cm, transverse center 2cm scope in drill diameter 0.2cm aperture realize；Water-level observation pipe is bonded at square earth pillar by 3 poly (methyl methacrylate) plates of wall thickness 1cm, long 140cm and is dispersed with aperture position, thus the length of side is the water-level observation pipe of 1cm in being formed；The scale that precision can be had to be 1cm on the inwall of water-level observation pipe, totally 140 scales 11；Solid lucite tube is pasted onto the bottom of water-level observation pipe, it is prevented that the phenomenon oozed under appearance is direct by water-level observation pipe.This water-level observation pipe can be positioned on sample or under sample time at the water level in experimental section, all can realize real-time monitored SEA LEVEL VARIATION smoothly.What box body B of box body A is the cuboid box of the scarce end face of high 10cm, all high 8cm of baffle plate A and baffle plate B.
The Geotechnical Parameter property testing instrument operation principle that can simultaneously measure specific yield and infiltration coefficient of the present utility model is as follows:
According to Darcy's law, have:
In formula: the time dependent head difference of H (t), also it is seepage flow approach simultaneously, cm；
A discharge section area, cm2；
The time dependent flow of Q (t), cm3/s；
K infiltration coefficient, cm/s.
Within the dt period, by the water volume of cylindrical section it is:
According to Water-balancing model, by the water volume of cylindrical section it is:
DV=-μ AdH
In formula, negative sign represents that head (H) value is reducing along with the increase by cylindrical section volume (V).
Obtained by upper two formulas:
Then:
Kdt=-μ dH
Integration:
:
Kt=μ (H0-H)
Record water level is positioned at t=t during H1, and the volume V of discharge water, then have:
The job step of the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient of the present utility model is as follows:
1, sample is gathered:
Gather the required sample of experiment, standby；Meanwhile, utilize cutting ring to take undisturbed sample, utilize drying-weight method to measure its dry density ρ ' d.
2, sample is prepared:
Sample is air-dry, smash to pieces and sieve (aperture is 2mm aperture), standby.
3, moistening sample:
Mix soil container middle berth one layer sieve air-dry after sample, use watering can uniform sprinkling；Then, repaving one layer of sample, then spill one layer of water, all moistened by sample in this approach, add a cover a vexed night afterwards, outer layer overlaps a plastic bag again to be prevented evaporation and makes moisture redistribution in the sample.
4, test specimens initial mass moisture content:
The sample moistened fully is mixed, different positions take a small amount of soil sample load known quality little aluminum box in, do 5 parallel.Put into 105 DEG C of drying 12h in baking oven after weighing weight in the balance, to constant weight, to claim quality after cooling, calculate quality moisture content θ m.
5, filling earth pillar:
According to the length of side D of square earth pillar, length L and dry density ρ ' d, initial aqueous rate θ m, filling quality is calculated by formula m filling=D2 ρ ' d (1+ θ m), the quality filling earth pillars such as segmentation (every layer of 5cm), interlayer hacking, it is prevented that the formation that interlayer runs off.
6, saturated earth pillar:
Controlled head water supply installation is connected with osculum with water supply hole respectively with controlled head drainage arrangement, closes feed water valve and drain valve, after covering vaporization prevention lid, screwing screw, when guaranteeing to seal, passage is connected with vacuum pumping pump, when vacuum pumping pump works.First by controlled head water supply installation regulate as position parallel bottom sample, after open feed water valve, gradually rise controlled head water supply installation, until arriving sample top, turning off vacuum pumping pump, and disconnecting vacuum pumping pump and passage, make passage connect air, finally close feed water valve.To guarantee that in sample, aerofluxus is complete in full water process, make the fully full water of earth pillar hole.
7, test process:
Choose test bottom for zero reference level, be just vertically upward, then:
(1) controlled head drainage arrangement is regulated to the position parallel with bottom sample；
(2) drain valve is opened, when the water level in water-level observation hole and the distance at sample top are more than the capillary rise height hc of sample, the record time now is t=0, and height of water level is H0, and graduated cylinder is placed on the spout hole position of controlled head drainage arrangement, start water receiving.
(3) after a period of time, water level decreasing, to H place, records time t=t1 now and the volume V of the water discharged in the t1 time period.
After above-mentioned steps terminates, carry out data compilation:
1, the specific yield of ground is calculated:
2, the infiltration coefficient of ground is calculated:
A kind of Geotechnical Parameter property testing instrument simple in construction that can simultaneously measure specific yield and infiltration coefficient of the present utility model, easy to use, can the simultaneously infiltration coefficient of Accurate Determining ground and specific yield, be with a wide range of applications.As can be extensively used in hydrogeological study, contribute to student as instruments used for education and be best understood from specific yield and infiltrative measuring principle；And the hydrogeological parameter calculation such as coefficient, Rain penetration supply variations can be fed at groundwater resources EQUILIBRIUM CALCULATION FOR PROCESS, diving dynamic prediction, the calculating of phreatic water allowable exploitation, farmland drainage ditch, hidden pipe ditch depth, distance computation, field irrigation and drain calculation, Irrigation Infiltration aborning, and in all kinds of researchs relevant with subsoil water.
Claims (7)
1. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient, earth pillar including bottom surface sealing, upper bottom surface opening, it is characterized in that: the upper bottom surface of described earth pillar is provided with vaporization prevention lid, and vaporization prevention lid is provided with passage, and vacuum pumping pump connects with passage；The horizontal poly (methyl methacrylate) plate with holes having surface to lay gauze of earth pillar lower inside, the cavity between described poly (methyl methacrylate) plate with holes and earth pillar bottom surface forms steady hydroecium；Cavity between poly (methyl methacrylate) plate with holes and earth pillar upper bottom surface is divided into 2 cavitys by the lucite spacer with holes vertically placed, respectively water-level observation pipe and sample room, the sealing of going to the bottom of water-level observation pipe, lucite spacer with holes is positioned at the surface of water-level observation pipe and indicates scale, and the surface being positioned at sample room is equipped with gauze；The bottom surface of earth pillar offers water supply hole and osculum, and water supply hole is connected with controlled head water supply installation by being provided with the feed pipe of feed water valve, and osculum is connected with controlled head drainage arrangement by being provided with the drain pipe of drain valve；Described controlled head water supply installation includes the box body A lacking end face, the baffle plate A that its inner chamber is divided into 2 cavitys it is provided with in box body A, the baffle plate A height height not higher than box body A, one of them cavity bottom is provided with the water supply installation apopore connected with feed pipe and the water supply installation inlet opening connected with water supply installation water inlet pipe, and another cavity bottom is provided with water supply installation spout hole；Described controlled head drainage arrangement includes the box body B lacking end face, the baffle plate B that its inner chamber is divided into 2 cavitys it is provided with in box body B, the baffle plate B height height not higher than box body B, one of them cavity bottom is provided with the drainage arrangement inlet opening being connected with drain pipe, and another cavity bottom is provided with drainage arrangement spout hole；Described box body A and box body B is slidably connected with vertical rail each through the carriage of the box wall being respectively arranged on box body A and box body B.
2. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 1, it is characterised in that: the upper edge of described earth pillar is provided with the fixing plate of a circle vaporization prevention lid, and vaporization prevention lid is connected by the fixing plate of screw and vaporization prevention lid.
3. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 1, it is characterised in that: it is connected by silica gel ring between lucite spacer with holes with poly (methyl methacrylate) plate with holes.
4. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 1, it is characterised in that: described water supply installation spout hole connects with water supply installation overflow pipe.
5. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 1, it is characterised in that: described drainage arrangement spout hole connects with drainage arrangement overflow pipe.
6. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 5, it is characterised in that: described drainage arrangement overflow pipe connects with graduated cylinder.
7. the Geotechnical Parameter property testing instrument that can simultaneously measure specific yield and infiltration coefficient according to claim 1, it is characterized in that: described carriage includes the rear wall being arranged at outside the box wall of box body A or box body B, rear wall is dug the vertical through hole for vertical rail traverse, rear wall is provided with for the interior rotary screw that box body A or box body B is fixing with vertical rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173798.4U CN205404360U (en) | 2016-03-08 | 2016-03-08 | But ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620173798.4U CN205404360U (en) | 2016-03-08 | 2016-03-08 | But ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient |
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| CN205404360U true CN205404360U (en) | 2016-07-27 |
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| CN201620173798.4U Expired - Fee Related CN205404360U (en) | 2016-03-08 | 2016-03-08 | But ground parameter nature apparatus of simultaneous determination feedwater degree and osmotic coefficient |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546526A (en) * | 2016-11-25 | 2017-03-29 | 太原理工大学 | Multidimensional gas permeability measurement instrument and measuring method |
| CN106706498A (en) * | 2017-01-16 | 2017-05-24 | 哈尔滨工业大学 | Steady state water permeability coefficient testing device and method of concrete type material |
| CN108061696A (en) * | 2017-11-29 | 2018-05-22 | 河海大学 | A kind of device and method of indoor test mud film infiltration coefficient |
-
2016
- 2016-03-08 CN CN201620173798.4U patent/CN205404360U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546526A (en) * | 2016-11-25 | 2017-03-29 | 太原理工大学 | Multidimensional gas permeability measurement instrument and measuring method |
| CN106546526B (en) * | 2016-11-25 | 2018-12-25 | 太原理工大学 | Multidimensional gas permeability measurement instrument and measurement method |
| CN106706498A (en) * | 2017-01-16 | 2017-05-24 | 哈尔滨工业大学 | Steady state water permeability coefficient testing device and method of concrete type material |
| CN108061696A (en) * | 2017-11-29 | 2018-05-22 | 河海大学 | A kind of device and method of indoor test mud film infiltration coefficient |
| CN108061696B (en) * | 2017-11-29 | 2021-02-09 | 河海大学 | Device and method for testing permeability coefficient of mud membrane indoors |
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