CN101692035A - Capillary soil water climbing height measuring device - Google Patents
Capillary soil water climbing height measuring device Download PDFInfo
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- CN101692035A CN101692035A CN200910145183A CN200910145183A CN101692035A CN 101692035 A CN101692035 A CN 101692035A CN 200910145183 A CN200910145183 A CN 200910145183A CN 200910145183 A CN200910145183 A CN 200910145183A CN 101692035 A CN101692035 A CN 101692035A
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Abstract
The invention relates to a capillary soil water climbing height measuring device which performs capillary water osmosis to a soil mass sample in a soil containing barrel by supplying water source with constant water level in the lower part of the soil containing barrel in which the soil mass sample is compacted so as to more accurately measure capillary water climbing speed, height and water content of different soil mass samples, thus providing basic data for foundation design of projects, such as freeways, airports, dams and the like. The invention can effectively prevent underground water from dipping into the foundation and keep relatively stable dry and moisture states of foundation soil.
Description
Technical field
The present invention relates to a kind of capillary soil water climbing height measuring device, belong to the Geotechnical Engineering technical field of measurement and test.
Background technology
In the ground design of engineerings such as highway, airport, dam, how the relatively stable of soil body moisture preserved moisture, kept to waterproof is very crucial problem.And cause the variation of foundation soil dry and wet state, one of them factor is exactly the capillary water infiltration that underground water is given birth to the ground local products, for example the roadbed of highway engineering is just permeated by capillary water easily, because the rising of capillary water, the dry and wet state of subgrade soils changes, cause the intensity of roadbed to reduce or unstability, and then influence the intensity and the stability of pavement structure, therefore, will prevent as far as possible in the design process that underground water from immersing ground, the water translocation control of subgrade soils is a key technical problem in the low roadbed design.
At present, China is to the applied research of capillary water, concentrate on irrigation and water conservancy department mostly, and survey region is confined to soil salinization area and season freeze thawing district more, the comparatively simple vertical tube method of its general employing is carried out the measurement of capillary water height, test after promptly burying the body sample that bankets with the small-bore round tube, this device is comparatively simple and crude, and the capillary water height of being measured is not accurate enough.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of capillary soil water climbing height measuring device is provided, the constant water source of underfeed water level of the soil-containing tube by being filled with soil body sample in pressure, the soil body sample in the soil-containing tube is carried out the capillary water infiltration, to obtain soil body sample capillary water height comparatively accurately, for the design of the ground of engineerings such as highway, airport, dam provides basic data, can prevent as far as possible that underground water from immersing ground, keep the foundation soil water cut relatively stable.
For realizing above technical purpose, the present invention takes following technical scheme:
A kind of capillary soil water climbing height measuring device, comprise and be used to bury the soil-containing tube of body sample of banketing, supply with the base that is filled with water of soil body sample capillary water infiltration, and the constant water supply installation of water level, the soil-containing tube open at both ends is provided with, it comprises the soil-containing tube joint that a joint is above, connect by ring flange between the adjacent two soil-containing tubes joint, described soil-containing tube upper end is equipped with gland bonnet, the soil-containing tube lower end then is installed on the base by ring flange, be provided with the permeable support unit that is used to support soil body sample that is used with the soil-containing tube lower end in the described base that is filled with water, offer a plurality of through holes on the soil-containing tube wall, the water supply installation water side is connected with the base water inlet pipe by aqueduct axially spaced-apart.
Described water supply installation comprises supply tank and chassis, is connected with resilient supporting unit between supply tank and the chassis, and supply tank is connected with the base that is filled with water.
Be embedded with more than one soil moisture tacheometer in the soil body sample, the probe lead of this soil moisture tacheometer is drawn from through hole.
The base that is filled with water is provided with the water-level observation pipe.
Described permeable support component is a permeable stone, and this permeable stone diameter is less than the soil-containing tube internal diameter.
Be provided with filtering layer between described soil body sample and the permeable stone.
The soil-containing tube internal face is provided with lubricating layer.
Described soil-containing tube internal diameter is 22～25cm, and wall thickness is 8～10mm, and the diameter of through hole is 2cm, and the spacing of adjacent two through hole is 5～10cm.
The length of every joint soil-containing tube joint is 45～70cm.
The stage clip composition that described resilient supporting unit distributes for adopting matrix form, the two ends of described stage clip are connected with the chassis with supply tank respectively.
According to above technical scheme, can realize following beneficial effect:
1. the present invention passes through at the constant water source of the underfeed water level of soil-containing tube, the soil body sample in the soil-containing tube is carried out the capillary water infiltration, thereby can determine the capillary water height of different soil body sample correspondences comparatively exactly, for the design of the ground of engineerings such as highway, airport, dam provides basic data, can prevent as far as possible that underground water from immersing ground, keeps the metastable dry and wet state of foundation soil;
2. be filled with water base by metal casting system, height is about 5cm, and the permeable stone diameter can support the pressure of soil body sample in the soil-containing tube of top than the little 5mm of soil-containing tube internal diameter;
3. a side of supply tank sidewall is opened with the identical aperture of base diameter, external aqueduct can import water in the supply tank soil-containing tube bottom, and the base bottom is equipped with stage clip, minimizing supply tank along with water in the supply tank during test can rise, to guarantee the substantially constant of water level in the soil-containing tube; Opposite side is connected with a glass water-level observation pipe that is used to see water level in the test barrel.
Description of drawings
Fig. 1 is the structural representation of capillary water riser of the present invention;
Fig. 2 is a water supply installation structural representation of the present invention;
Wherein, soil-containing tube saves 1 through hole, 11 soil moisture tacheometers, 12 soil body samples, 13 ring flanges, 2 gland bonnets, 3 bolts 4 base 5 water inlet pipes 51 water-level observation pipes 52 permeable stones 53 chassis 61 resilient supporting units, 62 supply tanks 63 that are filled with water.
Embodiment
Explain technical scheme of the present invention below with reference to accompanying drawing.
As depicted in figs. 1 and 2, capillary soil water climbing height measuring device of the present invention, comprise and be used to bury the soil-containing tube of body sample 13 of banketing, supply with the base 5 that is filled with water of soil body sample 13 capillary waters infiltration, and the constant water supply installation of water level, the soil-containing tube open at both ends is provided with, it comprises the soil-containing tube joint 1 that a joint is above, connect by ring flange 2 between the adjacent two soil-containing tubes joint 1, then can set the soil-containing tube of differing heights as required, described soil-containing tube upper end is equipped with gland bonnet 3, to prevent water evaporation in the capillary water process of osmosis, it is inaccurate to cause soil body sample 13 permeability parameters to measure, the soil-containing tube lower end then is installed on the base 5 that is filled with water by ring flange 2, be provided with the permeable support unit that is used to support soil body sample 13 that is used with the soil-containing tube lower end in the described base 5 that is filled with water, this permeable support component is a permeable stone 53, these permeable stone 53 diameters are less than the soil-containing tube internal diameter, the base 5 interior water that then are filled with water can see through permeable stone 53, thereby soil body sample 13 is produced capillary percolation, and the base 5 that is filled with water is provided with water-level observation pipe 52, different soil body sample 13 is set the water supply of different water levels, offer a plurality of through holes 11 on the soil-containing tube wall axially spaced-apart, be embedded with more than one soil moisture tacheometer 12 in the soil body sample 13, the probe lead of this soil moisture tacheometer 12 is drawn from through hole 11, this through hole 11 can also be used for fetching earth in soil-containing tube and test, the water supply installation water side is connected with the base water inlet pipe by aqueduct, this water supply installation comprises supply tank 63 and chassis 61, be connected with resilient supporting unit 62 between supply tank 63 and the chassis 61, the stage clip composition that described resilient supporting unit 62 distributes for adopting matrix form, then the two ends of stage clip are connected with chassis 61 with supply tank 63 respectively.
Be provided with filtering layer between described soil body sample 13 and the permeable stone 53, filtering layer of the present invention is that filter paper is made.
The soil-containing tube internal face is provided with lubricating layer, then on the one hand can be conveniently stripped, can also prevent from effectively on the other hand to take place to concentrate seepage flow to influence the accurate of test result at barrel.
Soil-containing tube is the flint glass tube, can be convenient to the soil color variation that rising causes to capillary water and observe; The soil-containing tube diameter is controlled at about 22～25cm, both can guarantee in soil-containing tube, to press the body sample 13 that bankets easy to operate, the boundary effect when the capillary waters infiltration takes place soil body sample 13 in the soil-containing tube can be ignored again, the relative error that fetches earth and rise in the through hole 11 can also be ignored simultaneously with the capillary water that carries out causing after the test of soil body sample 13 water cut; Wall thickness can guarantee the intensity of soil-containing tube at 8～10mm, prevents to destroy in process of the test; Soil-containing tube is divided into many sections, and every section is controlled between 45～70cm, and is middle fixedly connected with ring flange 2, both can guarantee the maximum continuity of soil-containing tube, is convenient to simultaneously remove the soil body in the tube after the off-test; Soil-containing tube every 5～10cm between left and right apart from opening the about 2cm of diameter left and right sides through hole 11 at barrel, each through hole 11 is equipped with rubber plug, can need to be provided with pitch-row as required when testing, the aperture of 2cm both can make things convenient for soil digging to measure soil body water cut, also can be easy to use during the TDR Test instrument lead of chaining pin draw.
During use, the base 5 and one that will be filled with water saves soil-containing tube joint 1 usefulness ring flange 2 and the screw butt joint connects fixing, permeable stone 53 is put into the base 5 that is filled with water, put one deck filter paper above to form filtering layer, prevent that permeable stone 53 from directly contacting with soil body sample 13, the barrel of soil-containing tube joint 1 is smeared to form lubricating layer with butter, then on the one hand can be conveniently stripped, also prevent from the other hand to take place to concentrate seepage flow influence the accurate of test result at barrel; Then, according to the compactness that designs the soil body sample of getting ready 13 is poured into, with beater evenly, compacting layer by layer, and to cut a hole hair between each layer, and at the place into the soil probe of soil moisture measure 12TDR of predetermined height, lead stretches out from through hole 11, when one joint soil-containing tube joint 1 fills up soon, connect an other joint soil-containing tube joint 1 thereon by ring flange 2 again, soil body sample 13 is installed and is buried underground the test height of soil moisture tacheometer TDR probe by joint according to the method, and after plastic sheeting is laid at the top, install gland bonnet 3 additional to design; Then the water supply installation aqueduct is connected on base 5 water inlet pipes that are filled with water, height of water level is set as requested, can regulate by water-level observation pipe 52, along with the capillary water infiltration takes place soil body sample 13, supply tank 63 will rise along with the answer of stage clip, then can keep water level constant, the rising of capillary water can be judged through soil-containing tube observation soil change color in addition; Set soil body sample 13 moisture determinations of different time and differing heights at last according to the research needs, in addition, if, use little soil digging to deeply fetching earth by from through hole 11, fetching earth to carry out 13 moisture determinations of soil body sample, rotation does not form macroscopic void, in order to avoid result's error becomes big.
Claims (10)
1. capillary soil water climbing height measuring device, it is characterized in that, comprise and be used to bury the soil-containing tube of body sample of banketing, supply with the base that is filled with water of soil body sample capillary water infiltration, and the constant water supply installation of water level, the soil-containing tube open at both ends is provided with, it comprises the soil-containing tube joint that a joint is above, connect by ring flange between the adjacent two soil-containing tubes joint, described soil-containing tube upper end is equipped with gland bonnet, the soil-containing tube lower end then is installed on the base by ring flange, be provided with the permeable support unit that is used to support soil body sample that is used with the soil-containing tube lower end in the described base that is filled with water, offer a plurality of through holes on the soil-containing tube wall, the water supply installation water side is connected with the base water inlet pipe by aqueduct axially spaced-apart.
2. capillary soil water climbing height measuring device according to claim 1 is characterized in that described water supply installation comprises supply tank and chassis, is connected with resilient supporting unit between supply tank and the chassis, and supply tank is connected with the base that is filled with water.
3. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that, is embedded with more than one soil moisture tacheometer in the soil body sample, and the probe lead of this earth moisture speed side instrument is drawn from through hole.
4. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that the base that is filled with water is provided with the water-level observation pipe.
5. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that, described permeable support component is a permeable stone, and this permeable stone diameter is less than the soil-containing tube internal diameter.
6. capillary soil water climbing height measuring device according to claim 5 is characterized in that, is provided with filtering layer between described soil body sample and the permeable stone.
7. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that the soil-containing tube internal face is provided with lubricating layer.
8. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that, described soil-containing tube internal diameter is 22～25cm, and wall thickness is 8～10mm, and the diameter of through hole is 2cm, and the spacing of adjacent two through hole is 5～10cm.
9. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that, the length of every joint soil-containing tube joint is 45～70cm.
10. capillary soil water climbing height measuring device according to claim 1 and 2 is characterized in that, the stage clip composition that described resilient supporting unit distributes for adopting matrix form, and the two ends of described stage clip are connected with the chassis with supply tank respectively.
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| CN200910145183A CN101692035A (en) | 2009-10-13 | 2009-10-13 | Capillary soil water climbing height measuring device |
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| CN200910145183A CN101692035A (en) | 2009-10-13 | 2009-10-13 | Capillary soil water climbing height measuring device |
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| CN101692035A true CN101692035A (en) | 2010-04-07 |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435541A (en) * | 2011-11-11 | 2012-05-02 | 东南大学 | Time domain reflection technology-based moisture transport measuring device |
| CN102680377A (en) * | 2012-06-06 | 2012-09-19 | 中国科学院地质与地球物理研究所 | Test device for measuring rising heights and speeds of porous medium capillary water |
| CN102680364A (en) * | 2012-06-06 | 2012-09-19 | 中国科学院地质与地球物理研究所 | Method for testing capillary water ascending height of multihole medium |
| CN102759610A (en) * | 2012-08-02 | 2012-10-31 | 哈尔滨工业大学 | Testing device of municipal sludge improved saline alkali soil |
| CN103076200A (en) * | 2013-01-06 | 2013-05-01 | 南华大学 | Layered sampling testing device for capillary water zone |
| CN103149344A (en) * | 2013-03-08 | 2013-06-12 | 兰州大学 | Slab combined type capillary water rise test column |
| CN103792175A (en) * | 2014-03-03 | 2014-05-14 | 中国科学院地质与地球物理研究所 | Unsaturated rock-earth mass constant head reverse penetration testing method |
| CN103808643A (en) * | 2014-03-03 | 2014-05-21 | 中国科学院地质与地球物理研究所 | Vertical seepage test method under one-dimensional consolidation condition of solid body |
| CN104374680A (en) * | 2014-11-07 | 2015-02-25 | 山东大学 | Slip casting diffusion testing device and testing method using same |
| CN105136644A (en) * | 2015-09-07 | 2015-12-09 | 华东交通大学 | Equivalent method of aperture for hole between clay particles |
| CN105806761A (en) * | 2016-03-08 | 2016-07-27 | 中国地质大学（武汉） | Simultaneous determination method and determination device of capillary-rise height and specific water yield |
| CN106645260A (en) * | 2017-02-26 | 2017-05-10 | 中国科学院寒区旱区环境与工程研究所 | Automatic water supply and discharge system for soil body pressure freeze thawing experiment |
| CN106841581A (en) * | 2017-02-26 | 2017-06-13 | 中铁二院工程集团有限责任公司 | Salty Soil Subgrade model test apparatus under different regime modes |
| CN107101908A (en) * | 2017-03-22 | 2017-08-29 | 吉林大学 | A kind of capillary water negative pressure Quick testing instrument and its method of work |
| CN107328697A (en) * | 2017-06-02 | 2017-11-07 | 东南大学 | A kind of capillary water rise test instrument for being directed to coarse grain group or large scale cell cube sample |
| CN108458961A (en) * | 2018-03-28 | 2018-08-28 | 江西理工大学 | A kind of ion type rareearth leaching solution capillary rise pilot system and experimental method |
| CN109971611A (en) * | 2019-03-28 | 2019-07-05 | 哈尔滨师范大学 | Verifying device of the bacterium to Straw decomposing efficiency in soil carbon circulation experiment |
| CN110208489A (en) * | 2019-05-17 | 2019-09-06 | 济宁市公路工程公司 | The simulation test device and test method of capillary water height in a kind of subgrade soils |
| CN110333338A (en) * | 2019-07-17 | 2019-10-15 | 山东大学 | Water translocation experimental rig and method under a kind of synergy of epidemic disaster field |
| CN112945832A (en) * | 2021-02-24 | 2021-06-11 | 中国矿业大学 | Tester for capillary effect of powder soil under vibration load effect |
| CN114689822A (en) * | 2022-03-31 | 2022-07-01 | 中国电建集团成都勘测设计研究院有限公司 | Device for measuring capillary water rising height of soil body on site and using method thereof |
| CN115201070A (en) * | 2022-08-09 | 2022-10-18 | 贵州省水利水电勘测设计研究院有限公司 | Device and method for simulating capillary rising process |
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2009
- 2009-10-13 CN CN200910145183A patent/CN101692035A/en active Pending
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|---|---|---|---|---|
| CN102435541A (en) * | 2011-11-11 | 2012-05-02 | 东南大学 | Time domain reflection technology-based moisture transport measuring device |
| CN102680364B (en) * | 2012-06-06 | 2014-05-21 | 中国科学院地质与地球物理研究所 | Method for testing capillary water ascending height of multihole medium |
| CN102680377A (en) * | 2012-06-06 | 2012-09-19 | 中国科学院地质与地球物理研究所 | Test device for measuring rising heights and speeds of porous medium capillary water |
| CN102680364A (en) * | 2012-06-06 | 2012-09-19 | 中国科学院地质与地球物理研究所 | Method for testing capillary water ascending height of multihole medium |
| CN102680377B (en) * | 2012-06-06 | 2014-06-18 | 中国科学院地质与地球物理研究所 | Test device for measuring rising heights and speeds of porous medium capillary water |
| CN102759610A (en) * | 2012-08-02 | 2012-10-31 | 哈尔滨工业大学 | Testing device of municipal sludge improved saline alkali soil |
| CN103076200A (en) * | 2013-01-06 | 2013-05-01 | 南华大学 | Layered sampling testing device for capillary water zone |
| CN103149344A (en) * | 2013-03-08 | 2013-06-12 | 兰州大学 | Slab combined type capillary water rise test column |
| CN103149344B (en) * | 2013-03-08 | 2014-12-31 | 兰州大学 | Slab combined type capillary water rise test column |
| CN103792175A (en) * | 2014-03-03 | 2014-05-14 | 中国科学院地质与地球物理研究所 | Unsaturated rock-earth mass constant head reverse penetration testing method |
| CN103808643A (en) * | 2014-03-03 | 2014-05-21 | 中国科学院地质与地球物理研究所 | Vertical seepage test method under one-dimensional consolidation condition of solid body |
| CN103808643B (en) * | 2014-03-03 | 2016-04-06 | 中国科学院地质与地球物理研究所 | Vertical seepage tests method under soil body one-dimensional consolidation condition |
| CN104374680A (en) * | 2014-11-07 | 2015-02-25 | 山东大学 | Slip casting diffusion testing device and testing method using same |
| CN105136644B (en) * | 2015-09-07 | 2019-04-12 | 华东交通大学 | The derivation method of hole effective aperture between clay particle |
| CN105136644A (en) * | 2015-09-07 | 2015-12-09 | 华东交通大学 | Equivalent method of aperture for hole between clay particles |
| CN105806761B (en) * | 2016-03-08 | 2018-07-06 | 中国地质大学（武汉） | A kind of capillary rise height and specific yield while assay method and measurement device |
| CN105806761A (en) * | 2016-03-08 | 2016-07-27 | 中国地质大学（武汉） | Simultaneous determination method and determination device of capillary-rise height and specific water yield |
| CN106645260A (en) * | 2017-02-26 | 2017-05-10 | 中国科学院寒区旱区环境与工程研究所 | Automatic water supply and discharge system for soil body pressure freeze thawing experiment |
| CN106841581A (en) * | 2017-02-26 | 2017-06-13 | 中铁二院工程集团有限责任公司 | Salty Soil Subgrade model test apparatus under different regime modes |
| CN106645260B (en) * | 2017-02-26 | 2023-04-21 | 中国科学院西北生态环境资源研究院 | Automatic water supply and drainage system for soil body pressure freezing and thawing test |
| CN107101908A (en) * | 2017-03-22 | 2017-08-29 | 吉林大学 | A kind of capillary water negative pressure Quick testing instrument and its method of work |
| CN107328697B (en) * | 2017-06-02 | 2019-09-17 | 东南大学 | It is a kind of for coarse grain group or the capillary water rise test instrument of large scale cell cube sample |
| CN107328697A (en) * | 2017-06-02 | 2017-11-07 | 东南大学 | A kind of capillary water rise test instrument for being directed to coarse grain group or large scale cell cube sample |
| CN108458961A (en) * | 2018-03-28 | 2018-08-28 | 江西理工大学 | A kind of ion type rareearth leaching solution capillary rise pilot system and experimental method |
| CN109971611A (en) * | 2019-03-28 | 2019-07-05 | 哈尔滨师范大学 | Verifying device of the bacterium to Straw decomposing efficiency in soil carbon circulation experiment |
| CN110208489A (en) * | 2019-05-17 | 2019-09-06 | 济宁市公路工程公司 | The simulation test device and test method of capillary water height in a kind of subgrade soils |
| CN110333338A (en) * | 2019-07-17 | 2019-10-15 | 山东大学 | Water translocation experimental rig and method under a kind of synergy of epidemic disaster field |
| CN112945832A (en) * | 2021-02-24 | 2021-06-11 | 中国矿业大学 | Tester for capillary effect of powder soil under vibration load effect |
| CN114689822A (en) * | 2022-03-31 | 2022-07-01 | 中国电建集团成都勘测设计研究院有限公司 | Device for measuring capillary water rising height of soil body on site and using method thereof |
| CN114689822B (en) * | 2022-03-31 | 2023-03-17 | 中国电建集团成都勘测设计研究院有限公司 | Device for measuring capillary water rising height of soil body on site and using method thereof |
| CN115201070A (en) * | 2022-08-09 | 2022-10-18 | 贵州省水利水电勘测设计研究院有限公司 | Device and method for simulating capillary rising process |
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Open date: 20100407 |