CN205506640U - Test device is measured to normal position soil osmotic coefficient - Google Patents
Test device is measured to normal position soil osmotic coefficient Download PDFInfo
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- CN205506640U CN205506640U CN201620307829.0U CN201620307829U CN205506640U CN 205506640 U CN205506640 U CN 205506640U CN 201620307829 U CN201620307829 U CN 201620307829U CN 205506640 U CN205506640 U CN 205506640U
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- housing
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a but the in -site measurement, the high test device is measured to normal position soil osmotic coefficient of experimental precision, including the casing, be located the device that fetches earth of casing lower part, the flood peak pipe above being located the penetrant unit of casing and being located the casing, the latter half of device of fetching earth is for cutting ring portion, the first half position screw thread portion, screw thread portion and casing threaded connection, the internal surface of device of fetching earth is smooth surface, penetrant unit includes intelligent measuring instrument and readout instrument, intelligent measuring instrument includes time -recorder, thermometer and flowmeter, the flood peak pipe is top and the communicating U type linker of atmosphere, and the lower part of the both sides of linker all is equipped with first valve, and the middle part all is equipped with the outlet pipe of taking the second valve, and upper portion was linked together through communicating pipe, the middle part of communicating pipe is equipped with the inlet tube, the both sides of communicating pipe all are equipped with a third valve, the central authorities of linker bottom upper surface install the accurate appearance of bubble water.
Description
Technical field
This utility model relates to a kind of soil permeability assay device, and especially a kind of original position soil infiltration coefficient is surveyed
Amount assay device.
Background technology
Osmotic coefficient k is the quantitative target of a permeability power representing soil, necessary when being also seepage calculation
The basic parameter used.Different types of soil, k value difference is the biggest.Therefore, soil is measured accurately
Infiltration coefficient is a highly important job.
According to test specification requirement, constant head permeability test method is applicable to sandy soil and the nothing containing a small amount of gravel
Coherency soil；Variable head permeability test method is applicable to fine grained soil.Test work used by different test methods
Tool and computing formula also have certain difference.By inquiring about existing assay device, major part assay device is room
Interior experiment with measuring device, the method used is for by after on-site soil sample collection, and transport is carried out to laboratory
Measure, so original-state soil will necessarily be produced certain interference.Some assay devices can be used for in-site measurement,
But test accuracy is not high enough, and a kind of measuring method being only applicable in variable water level method or hydrostatic head method.
Utility model content
This utility model provide one can in-site measurement, the original position soil gas permeability measurement that test accuracy is high
Assay device.
Realize the original position soil gas permeability measurement assay device of this utility model purpose, including housing, be positioned at
The drawing out soil equipment of lower housing portion, it is positioned at the permeability apparatus of housing and is positioned at the head pipe above housing；
The latter half of described drawing out soil equipment is cutting ring portion, threaded portion, top half position, described threaded portion and shell
Body is threaded；The inner surface of described drawing out soil equipment is smooth surface；
Described permeability apparatus includes that intelligent measuring instrument and readout instrument, described intelligent measuring instrument include timing
Device, thermometer and effusion meter；
Described head pipe is the U-shaped linker that top communicates with air, and the bottom of the both sides of linker is equipped with
First valve, middle part is equipped with the outlet pipe with the second valve, and top was connected by communicating pipe, described company
The middle part of siphunculus is provided with water inlet pipe, and the both sides of described communicating pipe are equipped with the 3rd valve；Described linker
The central authorities of upper base surface are provided with block level；
It is connected with permeability apparatus by pipeline below described head pipe, the lower connecting strap valve of described permeability apparatus
Door and the seepage flow pipe in seepage flow hole, whole permeability apparatus is in the inside of drawing out soil equipment.
One side external surface of described linker is provided with scale, can accurately read height of water level by scale.
Having the beneficial effect that of original position soil gas permeability measurement assay device of the present utility model:
Original position soil gas permeability measurement assay device of the present utility model, both can meet on-the-spot test requirements document,
Also can use no method of testing for Different Soil, simultaneously measurement result have certain accurate
Degree.
Accompanying drawing explanation
Fig. 1 is the structural representation of original position soil gas permeability measurement assay device of the present utility model.
Detailed description of the invention
As it is shown in figure 1, original position soil gas permeability measurement assay device of the present utility model, including housing 17,
The drawing out soil equipment, the permeability apparatus 4 being positioned at housing 17 that are positioned at housing 17 bottom and be positioned on housing 17
The head pipe 6 of side；
The latter half of described drawing out soil equipment is cutting ring portion 2, threaded portion, top half position 18, described threaded portion
18 threaded with housing 17；The inner surface of described drawing out soil equipment is smooth surface；
Described permeability apparatus 4 includes that intelligent measuring instrument and readout instrument, described intelligent measuring instrument include meter
Time device, thermometer and effusion meter；
Described head pipe 6 is the U-shaped linker that top communicates with air, and the bottom of the both sides of linker is all provided with
Having the first valve 16, middle part is equipped with the outlet pipe 14 with the second valve 13, and top is by communicating pipe 5 phase
Connection, the middle part of described communicating pipe 5 is provided with water inlet pipe 10, and the both sides of described communicating pipe 5 are equipped with one the
Three valves 11；The central authorities of described linker upper base surface are provided with block level 15；
Being connected with permeability apparatus 4 by pipeline below described head pipe 6, the bottom of described permeability apparatus 4 is even
The seepage flow pipe 19 in tape splicing valve 3 and seepage flow hole, whole permeability apparatus 4 is in the inside of drawing out soil equipment.
The length in described cutting ring portion 2 can be adjusted by rotating screw thread, the most as requested, is equipped with
The cutting ring portion 2 of different inner diameters size, external diameter all can be connected with permeability apparatus, it is achieved that change sampling diameter and
The function of height.
One side external surface of described linker is provided with scale, can accurately read height of water level by scale.
The operation principle of original position soil gas permeability measurement assay device of the present utility model is as follows:
For sandy soil and the soil of the incoherence containing a small amount of gravel, use constant head permeability test method, specifically
Step is:
1) according to permeable soil 1 dimensional requirement, the cutting ring portion 2 choosing suitable diameter D is arranged on housing
Bottom 17, length L then adjusting cutting ring portion 2 determines the height of permeable soil 1；
2) adjust block level 15, make measurement apparatus be inserted perpendicularly in tested soil 1, open valve
3,16,11, external water pipe 10 is connected with head pipe 6, passes first into the part water yield and drive out of among soil
Bubble；
3) all valves in addition to valve 3 in device for opening, water flowing within dress, make head pipe
Water level reaches outlet pipe 14 position, regulates into flow at water, makes head stable in outlet pipe position；
4) Open valve 3 and intellectual monitoring instrument simultaneously, carries out constant head permeability test, a period of time
After, close valve 3, stop at oral siphon 10 supply water, record measuring instrument time value t, flow Q and
Temperature T；
5) according to constant head test formula: K1=(QL)/(AHt), wherein, Q is that seepage discharge, L are for trying
Sample height, A be sample discharge area, H be average water potential difference, t be time of penetration.
6) owing to having a certain impact for infiltration coefficient under different temperatures, according to code requirement, will meter
Calculate result and be converted to the infiltration coefficient under standard temperature: K20=K1*(ηt/η20), wherein K20For standard water temperature
The infiltration coefficient of sample, η under (20 DEG C)tFor the coefficient of dynamic viscosity of water, η when t DEG C20Water when being 20 DEG C
Coefficient of dynamic viscosity.
For fine grained soil, use variable head permeability test method, concretely comprise the following steps:
1) according to permeable soil 1 dimensional requirement, the cutting ring portion 2 choosing suitable diameter D is arranged on housing
Bottom 17, length L then adjusting cutting ring portion 2 determines the height of permeable soil 1；
2) adjust block level 15, make measurement apparatus be inserted perpendicularly in tested soil 1, open valve
3,16,11, external water pipe 10 is connected with head pipe 6, passes first into the part water yield and drive out of among soil
Bubble；
3) close valve 3, in carrying graduated head pipe, be filled with water to certain altitude, stop water-filling, note
Record initial head H1；
4) Open valve 3 and intellectual monitoring instrument simultaneously, carries out variable head permeability test, treats under head
After being down to certain altitude, close valve 3, record measuring instrument time value t, flow Q and temperature T；
5) according to varying head test formula: K2=2.3* (aL)/(At) * lg (H1/H2), wherein, a is for becoming
The internal diameter area of head pipe, L be specimen height, A be sample discharge area, H1And H2For initial and termination
Head, t are time of penetration.
6) owing to having a certain impact for infiltration coefficient under different temperatures, according to code requirement, will meter
Calculate result and be converted to the infiltration coefficient under standard temperature: K20=K2*(ηt/η20), wherein K20For standard water temperature
The infiltration coefficient of sample, η under (20 DEG C)tFor the coefficient of dynamic viscosity of water, η when t DEG C20Water when being 20 DEG C
Coefficient of dynamic viscosity.
Embodiment described above is only to be described preferred implementation of the present utility model, the most right
Scope of the present utility model is defined, and without departing under this utility model design spirit premise, this area is general
Lead to various deformation and improvement that technical solutions of the utility model are made by engineers and technicians, this reality all should be fallen into
In the protection domain determined with novel claims.
Claims (2)
1. original position soil gas permeability measurement assay device, it is characterised in that: include housing, be positioned at housing
The drawing out soil equipment of bottom, it is positioned at the permeability apparatus of housing and is positioned at the head pipe above housing；
The latter half of described drawing out soil equipment is cutting ring portion, threaded portion, top half position, described threaded portion and shell
Body is threaded；The inner surface of described drawing out soil equipment is smooth surface；
Described permeability apparatus includes that intelligent measuring instrument and readout instrument, described intelligent measuring instrument include timing
Device, thermometer and effusion meter；
Described head pipe is the U-shaped linker that top communicates with air, and the bottom of the both sides of linker is equipped with
First valve, middle part is equipped with the outlet pipe with the second valve, and top was connected by communicating pipe, described company
The middle part of siphunculus is provided with water inlet pipe, and the both sides of described communicating pipe are equipped with the 3rd valve；Described linker
The central authorities of upper base surface are provided with block level；
It is connected with permeability apparatus by pipeline below described head pipe, the lower connecting strap valve of described permeability apparatus
Door and the seepage flow pipe in seepage flow hole, whole permeability apparatus is in the inside of drawing out soil equipment.
Original position soil gas permeability measurement assay device the most according to claim 1, it is characterised in that:
One side external surface of described linker is provided with scale, can accurately read height of water level by scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620307829.0U CN205506640U (en) | 2016-04-14 | 2016-04-14 | Test device is measured to normal position soil osmotic coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620307829.0U CN205506640U (en) | 2016-04-14 | 2016-04-14 | Test device is measured to normal position soil osmotic coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205506640U true CN205506640U (en) | 2016-08-24 |
Family
ID=56715165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620307829.0U Expired - Fee Related CN205506640U (en) | 2016-04-14 | 2016-04-14 | Test device is measured to normal position soil osmotic coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205506640U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107807083A (en) * | 2017-10-27 | 2018-03-16 | 广东电网有限责任公司电力科学研究院 | A kind of infiltrative method of testing of silicon rubber and its test device |
| CN108333097A (en) * | 2018-04-23 | 2018-07-27 | 贵州大学 | A kind of initial infiltration rate assay method of soil and its mancarried device |
| CN108444871A (en) * | 2018-03-20 | 2018-08-24 | 河海大学 | A kind of field soil permeability intensity device and method |
| CN109752305A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of constant head soil permeability coefficient measurement device |
| CN109752304A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of varying head soil permeability coefficient measurement device |
| 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 |
| CN113640191A (en) * | 2021-08-13 | 2021-11-12 | 中水淮河规划设计研究有限公司 | Large-size field water injection test device and test method |
-
2016
- 2016-04-14 CN CN201620307829.0U patent/CN205506640U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107807083A (en) * | 2017-10-27 | 2018-03-16 | 广东电网有限责任公司电力科学研究院 | A kind of infiltrative method of testing of silicon rubber and its test device |
| CN108444871A (en) * | 2018-03-20 | 2018-08-24 | 河海大学 | A kind of field soil permeability intensity device and method |
| CN108333097A (en) * | 2018-04-23 | 2018-07-27 | 贵州大学 | A kind of initial infiltration rate assay method of soil and its mancarried device |
| CN109752305A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of constant head soil permeability coefficient measurement device |
| CN109752304A (en) * | 2019-02-27 | 2019-05-14 | 中国地质大学（武汉） | A kind of varying head soil permeability coefficient measurement device |
| CN109752305B (en) * | 2019-02-27 | 2022-09-30 | 中国地质大学（武汉） | Constant head soil permeability coefficient measuring device |
| CN109752304B (en) * | 2019-02-27 | 2022-11-04 | 中国地质大学（武汉） | Variable water head soil permeability coefficient measuring device |
| 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 |
| CN113640191A (en) * | 2021-08-13 | 2021-11-12 | 中水淮河规划设计研究有限公司 | Large-size field water injection test device and test 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 |
Granted publication date: 20160824 Termination date: 20170414 |
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| CF01 | Termination of patent right due to non-payment of annual fee |