CN202735215U - Device for detecting permeability coefficient of soil - Google Patents
Device for detecting permeability coefficient of soil Download PDFInfo
- Publication number
- CN202735215U CN202735215U CN 201220359612 CN201220359612U CN202735215U CN 202735215 U CN202735215 U CN 202735215U CN 201220359612 CN201220359612 CN 201220359612 CN 201220359612 U CN201220359612 U CN 201220359612U CN 202735215 U CN202735215 U CN 202735215U
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- Prior art keywords
- water
- soil
- permeable
- cylinder
- permeable stone
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- 239000002689 soil Substances 0.000 title claims abstract description 60
- 230000035699 permeability Effects 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000004575 stone Substances 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 238000001764 infiltration Methods 0.000 claims description 31
- 230000008595 infiltration Effects 0.000 claims description 31
- 238000011049 filling Methods 0.000 claims description 14
- 229940099259 vaseline Drugs 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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Abstract
The utility model discloses a device for detecting permeability coefficient of a soil. The device comprises a water injection device and a water permeable device, wherein the water injection device is marked with water level scales; the water permeable device is arranged below the water injection device; a water outlet is formed at the lower part of the water injection device; a first valve is arranged at the water outlet; a water inlet is formed in a permeating cylinder; the water outlet is communicated with the water inlet by a water guiding pipe; the water permeable device comprises the permeating cylinder; a first water permeable stone is arranged on a soil sample in the permeating cylinder; a second water permeable stone is arranged below the soil sample; a water permeable opening is also formed in the cylinder wall of the permeating cylinder; the water inlet is placed in the cylinder wall of the permeating cylinder below the second water permeable stone; and the water permeable opening is placed in the cylinder wall of the permeating cylinder above the first water permeable stone. According to the utility model, influences of outside factors on detection of the permeability of the soil are reduced and the detection accuracy of the device is enhanced.
Description
Technical field
The utility model relates to a kind of determinator, relates in particular to a kind of soil permeability factor detection device.
Background technology
Ground forms the osmotic pressure that can produce soil infiltration behind certain soil layer, so soil can have certain perviousness, and perviousness is the important physical parameter of soil.At present, the mensuration of soil permeability need to arrange gross precipitation and the total displacement that trench drain and rain gage are measured the scope of surveying usually in soil, and the difference of the two can reflect the perviousness of this regional soil.In addition, the perviousness of soil can also obtain by the variation of seeing the monitoring underground water table.But said method all can not directly be measured the soil permeability coefficient, causes measuring accuracy low, and it is larger affected by terrain slope, position, slope, slope aspect, has therefore seriously affected the accuracy that soil permeability is measured.
The utility model content
For problems of the prior art, the purpose of this utility model provides a kind of soil permeability factor detection device, and this device can directly be measured the soil permeability coefficient, has improved the accuracy of measuring.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
A kind of soil permeability factor detection device comprises the water filling device that is labeled with level scale and is arranged on the water permeable device of described water filling device below, wherein,
The bottom of described water filling device is provided with water delivering orifice, and described water delivering orifice is provided with the first valve;
Described water permeable device comprises the infiltration cylinder of loading soil sample, is provided with water inlet on the described infiltration cylinder, and described water delivering orifice is communicated with by aqueduct with described water inlet, is provided with the first permeable stone on the soil sample in the described infiltration cylinder, and described soil sample is arranged with the second permeable stone;
Also be provided with permeable mouthful on the barrel of described infiltration cylinder, described water inlet is positioned on the barrel of infiltration cylinder of the second permeable stone below, and described permeable mouth is positioned on the barrel of infiltration cylinder of the first permeable stone top.
Further, be provided with the second valve on the described permeable mouth.
Further, be provided with the first O-ring seal between the barrel of described the first permeable stone and described infiltration cylinder, be provided with the second O-ring seal between the barrel of described the second permeable stone and described infiltration cylinder.
Further, described the first O-ring seal and described the second O-ring seal are made by rubber.
Further, be provided with gauze between described the first permeable stone and the described soil sample and between described the second permeable stone and the described soil sample.
Further, be provided with the vaseline coating on the inwall of described infiltration cylinder.
The soil permeability factor detection device that the utility model provides has been simplified the mensuration of soil permeability in the prior art, reduced the impact of extraneous factor on the mensuration of soil permeability, effectively improved the accuracy of measuring, and the soil permeability factor detection device that the utility model provides is simple in structure, easy to operate, reduced the man power and material's who measures input.
Description of drawings
Fig. 1 is the structural representation of the preferred soil permeability factor detection device of the utility model.
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of soil permeability factor detection device, this device comprises the water filling device 1 that is labeled with level scale and is arranged on the water permeable device 2 of described water filling device 1 below, the bottom of described water filling device 1 is provided with water delivering orifice 11, be provided with water inlet 21 on the described water permeable device 2, described water delivering orifice 11 is communicated with by aqueduct 3 with described water inlet 21, is provided with the first valve 12 on the described water delivering orifice 11, and it can control speed and the water injection rate of water filling easily; Described water permeable device 2 comprises the infiltration cylinder 22 of loading soil sample, in order to improve the sealing property of device, preferably is provided with the vaseline coating on the inwall of the infiltration cylinder 22 of present embodiment.Be provided with the first permeable stone 23 on the described infiltration cylinder 22 interior soil samples, described soil sample is arranged with the second permeable stone 24, also preferably is provided with gauze 27 between described the first permeable stone 23 and the described soil sample and between described the second permeable stone 24 and the described soil sample.It is in order to prevent that soil sample from directly contacting with permeable stone that gauze is set between permeable stone and the soil sample, be convenient to the cleaning of secondary experiment, certainly, the utility model can also adopt other materials beyond the gauze that those skilled in the art understand, but requires this material not affect the mensuration of water permeability.Be provided with the first O-ring seal between the barrel of described the first permeable stone 23 and described infiltration cylinder 22, be provided with the second O-ring seal between the barrel of described the second permeable stone 24 and described infiltration cylinder 22, described the first O-ring seal and described the second O-ring seal are set on described the first permeable stone and the second permeable stone, the first O-ring seal of present embodiment and described the second O-ring seal are preferably made by rubber, its size can be clogged the first permeable stone just, space between the second permeable stone and the infiltration cylinder, water improves the leakproofness of package unit from the side leakage of described gap in the time of can preventing from testing by this.
Also be provided with permeable mouthful 25 on the barrel of the infiltration cylinder 22 of present embodiment, described permeable mouthfuls 25 are positioned on the barrel of infiltration cylinder of the first permeable stone 23 tops, described water inlet 21 is positioned on the barrel of infiltration cylinder of the second permeable stone 24 belows, overflow from permeable mouthful 25 behind the penetrable whole soil sample layers of water that water inlet 21 places are injected, the phenomenon of having avoided current not see through whole soil samples and having overflowed, guaranteed the mensuration to the whole soil layer infiltration coefficients of load, improved to the perviousness of predetermined altitude soil sample measure accuracy.Preferably be provided with the second valve 26 on permeable mouthful 25 of present embodiment, described the second valve 26 can be so that the size of control current and the water yield, present embodiment can also arrange filtration unit at the second valve 26, such as filter screen, it can reduce effectively, and impurity improves the accuracy that device is measured further on the impact of soil sample in the test water.Certainly, the utility model is not limited to above-mentioned valve and filter structure, can also adopt those skilled in the art are familiar with have control current size and filter other any device of doing, repeats no more herein.
Use the perviousness of the soil permeability factor detection device mensuration soil of present embodiment to comprise the steps:
1, prepares soil sample with reference to the earthwork test rule SD128-012-84 of Ministry of Water Resources and Power Industry or with reference to JTJ051--93 " highway earthwork test rule " T013-93.
2, the second permeable stone and the second O-ring seal are put into infiltration cylinder bottom, will permeate the cylinder inwall and be coated with one deck vaseline.
3, place the first O-ring seal and the first permeable stone, sealing infiltration cylinder makes its water-tight gas leakage.
4, water delivering orifice and water inlet are communicated with, and the gas that water flowing will be permeated in the cylinder is emptying leveling soil permeability factor detection device.
5, water filling in the water filling device, it highly is not more than 200cm, and keeps being not more than under the 200cm head leaving standstill soil permeability factor detection device a period of time, can begin to measure after permeable mouth has water to overflow wait going out.
When 6, testing, with water filling device add water to need the height, head h1 during start-of-record starts stopwatch, behind the elapsed time t, head h2 during the end of record again, in addition, when carrying out test determination, survey the water temperature of note process of the test, guarantee that water temperature remains unchanged in the test determination process, prevent that water temperature from changing and cause permeable stone to expand with heat and contract with cold and then affect inflow.
7, be calculated as follows the log(h1-h2 of soil permeability coefficient: K=2.3(a * L/A))/t, in the formula:
A is the sectional area of water filling device 1, and unit is square centimeter;
L is seepage paths, and it equals the height of water permeable device 2, and unit is centimetre;
A is the sectional area of water permeable device 2, and unit is square centimeter;
H1 is when beginning head, and unit is centimetre;
H2 head when stopping, unit are centimetre;
T is minute.
Above-described embodiment is only for illustration of the utility model; and be not to be to restriction of the present utility model; the those of ordinary skill in relevant technologies field; in the situation that does not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all equivalent technical solutions also should belong to category of the present utility model, and scope of patent protection of the present utility model should be limited by each claim.
Claims (6)
1. a soil permeability factor detection device is characterized in that, comprise the water filling device that is labeled with level scale and be arranged on the water permeable device of described water filling device below, wherein,
The bottom of described water filling device is provided with water delivering orifice, and described water delivering orifice is provided with the first valve;
Described water permeable device comprises the infiltration cylinder of loading soil sample, is provided with water inlet on the described infiltration cylinder, and described water delivering orifice is communicated with by aqueduct with described water inlet, is provided with the first permeable stone on the soil sample in the described infiltration cylinder, and described soil sample is arranged with the second permeable stone;
Also be provided with permeable mouthful on the barrel of described infiltration cylinder, described water inlet is positioned on the barrel of infiltration cylinder of the second permeable stone below, and described permeable mouth is positioned on the barrel of infiltration cylinder of the first permeable stone top.
2. soil permeability factor detection device according to claim 1 is characterized in that, is provided with the second valve on the described permeable mouth.
3. soil permeability factor detection device according to claim 1, it is characterized in that, be provided with the first O-ring seal between the barrel of described the first permeable stone and described infiltration cylinder, be provided with the second O-ring seal between the barrel of described the second permeable stone and described infiltration cylinder.
4. soil permeability factor detection device according to claim 1 is characterized in that, described the first O-ring seal and described the second O-ring seal are made by rubber.
5. soil permeability factor detection device according to claim 1 is characterized in that, is provided with gauze between described the first permeable stone and the described soil sample and between described the second permeable stone and the described soil sample.
6. soil permeability factor detection device according to claim 1 is characterized in that, is provided with the vaseline coating on the inwall of described infiltration cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359612 CN202735215U (en) | 2012-07-23 | 2012-07-23 | Device for detecting permeability coefficient of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359612 CN202735215U (en) | 2012-07-23 | 2012-07-23 | Device for detecting permeability coefficient of soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202735215U true CN202735215U (en) | 2013-02-13 |
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| CN 201220359612 Expired - Lifetime CN202735215U (en) | 2012-07-23 | 2012-07-23 | Device for detecting permeability coefficient of soil |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344538A (en) * | 2013-06-25 | 2013-10-09 | 西安科技大学 | Multifunctional unsaturated soil permeameter and testing method thereof |
| CN104634714A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气集团公司 | Impact osmometer and operating method |
| CN104819920A (en) * | 2015-03-24 | 2015-08-05 | 河南理工大学 | Varying-head permeability experiment apparatus for indoor freezing and thawing equipment |
| CN106033046A (en) * | 2015-03-12 | 2016-10-19 | 西北农林科技大学 | A soil saturated hydraulic conductivity automatic measuring apparatus |
| CN108195733A (en) * | 2017-12-04 | 2018-06-22 | 浙江海洋大学 | The method for measuring crude oil storage tank ground impervious clay infiltration coefficient |
| CN108195742A (en) * | 2018-02-12 | 2018-06-22 | 浙江大学 | A kind of device and method for quickly measuring a variety of sand infiltration coefficients |
| CN108195734A (en) * | 2017-12-04 | 2018-06-22 | 浙江海洋大学 | Measure the device of crude oil storage tank ground impervious clay infiltration coefficient |
| CN113820194A (en) * | 2021-10-25 | 2021-12-21 | 福建工程学院 | Infiltration device and method for removing free iron oxide in soil |
-
2012
- 2012-07-23 CN CN 201220359612 patent/CN202735215U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344538A (en) * | 2013-06-25 | 2013-10-09 | 西安科技大学 | Multifunctional unsaturated soil permeameter and testing method thereof |
| CN103344538B (en) * | 2013-06-25 | 2016-01-06 | 西安科技大学 | A kind of unsaturated soil Multifunctional permeameter and method of testing thereof |
| CN104634714A (en) * | 2013-11-13 | 2015-05-20 | 中国石油天然气集团公司 | Impact osmometer and operating method |
| CN106033046A (en) * | 2015-03-12 | 2016-10-19 | 西北农林科技大学 | A soil saturated hydraulic conductivity automatic measuring apparatus |
| CN106033046B (en) * | 2015-03-12 | 2019-05-17 | 西北农林科技大学 | A kind of saturated hydraulic conductivity in soil apparatus for automatically measuring |
| CN104819920A (en) * | 2015-03-24 | 2015-08-05 | 河南理工大学 | Varying-head permeability experiment apparatus for indoor freezing and thawing equipment |
| CN108195733A (en) * | 2017-12-04 | 2018-06-22 | 浙江海洋大学 | The method for measuring crude oil storage tank ground impervious clay infiltration coefficient |
| CN108195734A (en) * | 2017-12-04 | 2018-06-22 | 浙江海洋大学 | Measure the device of crude oil storage tank ground impervious clay infiltration coefficient |
| CN108195742A (en) * | 2018-02-12 | 2018-06-22 | 浙江大学 | A kind of device and method for quickly measuring a variety of sand infiltration coefficients |
| CN113820194A (en) * | 2021-10-25 | 2021-12-21 | 福建工程学院 | Infiltration device and method for removing free iron oxide in soil |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20130213 |