CN202330229U - Device for monitoring water infiltration and water content of soil - Google Patents
Device for monitoring water infiltration and water content of soil Download PDFInfo
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- CN202330229U CN202330229U CN2011203686645U CN201120368664U CN202330229U CN 202330229 U CN202330229 U CN 202330229U CN 2011203686645 U CN2011203686645 U CN 2011203686645U CN 201120368664 U CN201120368664 U CN 201120368664U CN 202330229 U CN202330229 U CN 202330229U
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Abstract
The utility model provides a device for monitoring the water infiltration and the water content of soil. The device is characterized in that observing surfaces A and B with identified scales and a steel-structure bracket are arranged in a soil pit, and the steel-structure bracket is formed by distribution of ECH2O sensors, an EM50 data acquisition unit, a probe, a plug and a connecting line; sensors are uniformly distributed in the soil body of the observing surface A corresponding to a section A, the connecting lines of the sensors are connected with the data acquisition unit arranged on the observing surface A by the bottom part of the steel-structure bracket, and the data acquisition unit is fixedly connected on the steel-structure bracket; holes are distributed on a glass surface of the observing surface B, and the probe arranged on one hole is connected with a reading meter by a cable; a top cover is arranged at the top part of the steel-structure bracket, and benzene plates are arranged on surfaces C and D corresponding to the observing surfaces A and B of the steel-structure bracket; hinges arranged on the top cover of the device are hinged with hinges fixed on the steel-structure bracket; cross and vertical reinforcing strips are uniformly distributed at an outer frame of the steel-structure bracket of the device; and the steel-structure bracket of the device is made of thickened triangular steel materials.
Description
Technical field
The utility model relates to soil moisture migration monitoring, and this device especially is useful for buried underground, is the cross section with the windowpane, observes the moisture migration situation of soil profile, and the research of arid biogeographic zone being carried out this field has special value and purposes.
Background technology
Water infiltration is meant that the water body of ground surface gets in the soil and the overall process of on whole soil profile, migrating through passage.Soil infiltration capability has crucial effect to aspects such as water resource trans-utilization, agriculture water managements.Water infiltration is the important content of Study on Soil Moisture, the quantity that its decision precipitation or irrigation water get into soil, and it is dynamic to arrange the holard, has influence on the revenue and expenditure and the deep layer water storage of plant moisture.Field soil infiltration measuring common methods has artificially-simulated rainfall device method, dicyclo method, Ma Liaote-dicyclo method; Be that artificially-simulated rainfall device method is mainly simulated the natural rainfall situation, and volume is big, cost is high, unsuitable field operation; When using core cutter method and dicyclo method etc. to measure the soil infiltration characteristic in addition, depend on operator's subjective thinking to a great extent, make the result who draws have bigger uncertainty; The appearance that infiltrates of some specialties often only can be described soil infiltration and arrives the moisture movement state when surely oozing; And can not reflect wholely from just being seeped into the dynamic changing process of the hydrology motion process that surely oozes, this makes the true process that must correctly obtain and describe the soil infiltration characteristic become the very work of difficulty.
Soil moisture is also claimed water percentage, is one of basic physical property index of soil, and it has reflected dried, the wet condition of soil.At agriculture field, the important indicator of soil moisture reflection soil tilth.Mensuration to each layer soil water content is the basic means of the existence of research soil moisture, distribution and dynamic rule, and can directly be used to instruct production practices.Test unit that traditional weight method that fetches earth is used such as earth boring auger etc. rely on labor management fully, and obtaining and handle etc. also by manual completion of test figure wasted time and energy, and efficient is low.Though the Neutron Moisture appearance has convenient measurement, quick; Do not receive delayed action influence, measure the moisture wide ranges, measure the degree of depth and advantage such as do not limit, but also exist significantly not enough, lower like the precision of measuring the topsoil moisture; Simultaneously, also has certain radiation hazard.
(Time Domain Reflectometry TDR) is one of state-of-the-art soil moisture fast measurement technique in the world today to time-domain reflectomer.With data by MoM and MEI, TDR has the following advantages: 1) precision is high, and the volumetric(al) moisture content measuring error is generally in 2%; 2) influenced by soil types less for measurement result, generally need not demarcate separately specific soil; 3) radiationless, little to soil fail property; 4) geometry of probe is less to the influence of measurement result; 5) cooperate with datalogger and can carry out long-term monitoring automatically; In addition, even more important a bit is that time-domain reflectomer can be measured soil accumulation infiltration capacity and moistening peak position in a short period of time.ECH
2O soil moisture content monitoring system promptly is based on the Time Domain Reflectometry technology, confirms the specific inductive capacity or the permittivity of medium through changes in capacitance on the survey sensor.Because the specific inductive capacity of water is very high, therefore when the moisture content change in the soil, sizable variation also takes place in the specific inductive capacity of soil thereupon; This sensor can carry out long-term continuous monitoring to the moisture of a plurality of kinds of ground, different depth soil; Relatively low to soil salinity and temperature effect susceptibility; And power consumption is few, and simultaneously, high resolving power enables accurately to measure every day even water regime hourly.
The utility model is with soil infiltration observation device, monitoring soil moisture and data collector composite design; The device of a kind of water infiltration speed and soil water content synchro measure is provided; Can realize the two-parameter 2D section of soil distribution measuring, for soil moisture migration research provides effective measurement means.
Summary of the invention
The order of the utility model is: the water infiltration speed that the utility model provides and the device of soil water content synchro measure, can realize the two-parameter 2D section of soil distribution measuring.
The purpose of the utility model is achieved in that a kind of water infiltration and soil moisture content device for monitoring, with adjacent A, the B inspection surface that identifies scale being installed and being laid with ECH
2The steel structure support 5 of O sensor 1, EM50 data acquisition unit 3, probe 8, plug 10 and line places heatable adobe sleeping platform; In the soil body of the corresponding A section of A inspection surface, be uniformly distributed with sensor 1, the data acquisition unit 3 that the connecting line 2 of its sensor 1 is installed on steel structure support 5 bottoms and A inspection surface is connected, and its data acquisition unit 3 is fixed on the steel structure framework 5; On 7 in the glass of B inspection surface, be laid with hole 9, probe 8 be installed on its hole 9 be connected with read table 12 through cable 11; Wherein on the top of steel structure support 5, top cover 4 is installed, on the corresponding C of the A of steel structure support 5, B inspection surface, D face, benzene plate 6 is installed; The housing of the steel structure framework 5 of this device is uniformly distributed with horizontal, vertical reinforcing strip 13.
The utility model adopts such structure, during use will through windowpane observe intuitively irrigate or rainfall after the agricultural land soil section moisture true process of infiltrating; The middle use of placing into the soil for a long time of embedding embedded time-domain reflectomer; Do not corroded, stability is high, measuring accuracy is high, response speed is fast, can obtain the dynamic data that the soil profile soil moisture content changes; The portable soil moisture teller is as the important supplement means of monitoring soil moisture; Can realize timely monitor to the soil profile moisture, not only easy to use, and alleviated the working strength that heavy instruments such as using the neutron appearance is installed transfer; Show technical progress.
Description of drawings
Be further described below in conjunction with the utility model accompanying drawing.
Accompanying drawing 1 is the observation windowpane heatable adobe sleeping platform sectional view (showing A, B inspection surface) of the utility model;
Accompanying drawing 2 is the synoptic diagram of the utility model three-dimensional steel structure framework;
Accompanying drawing 3 is the principle of work synoptic diagram (for the A face) of the utility model device;
Accompanying drawing 4 is the principle of work synoptic diagram (for the B face) of the utility model device;
A, B are inspection surface in the accompanying drawing; C, D are non-inspection surface; 1-ECH
2The O sensor; The 2-communication wire; The 3-EM50 data acquisition unit; The 4-top cover; 5-steel structure support; 6-benzene plate; The graduated glass of 7-; The 8-monitor probe; The 9-hole; The 10-rubber plug; The 11-cable; The 12-read table; The 13-reinforcing strip.
Embodiment
The test operation main points:
1) observation hole section is seen Fig. 1; Specification is long 2 m * wide 1 m * dark 3 m, intends two inspection surface A that install instruments and need keep smooth with B, closely contacts with soil profile with the glass of assurance windowpane.
2) the glazed facade lattice of steel structure support 5 has steel structure reinforcing strip 13 to support, and plays firm effect; Top cover 4 is hinged through the hinge on hinge and the steel structure support 5; The benzene plate is used to fill up and places steel structure support and have between the glass 7 of scale, as glass and the medium that support closely contacts, prevents unbalance stress support extruding glass; Scale on the glass 7 is used for observing the infiltrate degree of depth of moisture at soil; The service aisle that is provided with hole 9 as instant-plugging soil nmoisture content analyser probe 8 on glass of inspection surface B, the diameter of hole 9 equals or is slightly larger than the diameter of instant-plugging soil nmoisture content analyser probe 8; Each hole all is furnished with rubber plug 10, after probe 8 is extracted, rubber plug 10 is filled in the hole 9 to ensure the closely knit of glazed facade; C, D face are installed benzene plate 6 and are played the partition effect, prevent that earth and water from getting into the observation hole.
3) before windowpane is installed to the survey hole, with ECH
2O sensor level embeds in the A section soil body of surveying hole inspection surface A, and according to the observation needs, soil layer is set at 20cm at interval, down begins the degree of depth until 300cm in the 20cm position from showing soil, and 15 sensors are installed altogether; After sensor 1 is imbedded the relevant position; Cutter digs vertical wire casing on soil profile, and the connecting line 2 of sensor is pressed among the soil profile A, and all connecting lines 2 are installed glass after laying and finishing again; Connecting line 2 is reserved corresponding length; Windowpane bottom through inspection surface A gets into to survey in the hole and is connected with data acquisition unit 3, and data acquisition unit 3 is fixed on the steel structure support 5, and data acquisition unit is installed the automatic monitoring that can realize soil moisture behind the battery.
4) the stainless steel probe inlayed for ABS engineering plastics handle of the probe 8 of portable instant-plugging monitoring soil moisture appearance; During measurement; Probe 8 inserts in the corresponding B section soil body of inspection surface B through windowpane mesopore 9; Probe 8 is connected with read table 12 through communication cable 11, can realize the mensuration to soil moisture; Hole 9 is after determining soil moisture is accomplished, with rubber plug 10 blockings.
Embodiment
The test sample prescription of this test unit is arranged at before seeding crops in the farmland, and selected farmland is the arid biogeographic zone cotton field.In the process of hand digging heatable adobe sleeping platform, for guaranteeing the smooth of inspection surface and prevent landslide, require this inspection surface top forbid standing people or mound, the earth that is excavated must in time be cleared out outside the heatable adobe sleeping platform; For ease of the installation of steel structure framework 5 and glass 7, two section C and D that heatable adobe sleeping platform is not done to observe suitably dig wide (Kuan>1mc, long>2m), treat steel structure framework 5, glass 7 and ECH
2After the installation of O sensor, with also compacting outside earthen backfill to the C face that excavates and the D face.
Embedding embedded time-domain reflectomer and portable soil moisture teller are when practicality; At first need proofread and correct and demarcate; Bearing calibration is for utilizing the soil drilling method mensuration soil moisture that fetches earth, and the soil moisture of measuring with embedding embedded time-domain reflectomer and portable soil moisture teller is respectively set up calibration equation.Embedding embedded time-domain reflectomer data acquisition unit 3 is installed the automatic monitoring that can realize soil moisture behind the battery, as requested setting data acquisition time (like 5 minutes readings 1 time) at interval; During portable soil moisture teller measured soil moisture; Get in the observation hole by the support climbing of steel structure framework by the observation personnel; Earlier the rubber plug in the hole 9 10 is extracted; Hand hold transducer 8 is inserted in the corresponding B section soil body of inspection surface B through hole 9, the other end of probe 8 is connected with read table 12 through communication cable 11 again, and read table 12 can directly read and store the soil moisture data.
After irrigation or the rainfall; The observation personnel get in the observation hole by the support climbing of steel structure framework; The inspection surface A and the B that see through windowpane promptly can be observed the overall process that surface water goes into to be seeped into soil profile; Scale on the glass 7 of inspection surface A and B utilizes the clock and watch record to infiltrate the time simultaneously, thereby can calculate corresponding infiltration rate in order to the record water infiltration degree of depth.
The steel structure support 5 of device is made up of the triangle steel matter of thickening.
Claims (5)
1. water infiltration and soil moisture content device for monitoring is characterized in that: adjacent A, the B inspection surface of sign scale will be installed and be laid with ECH
2The steel structure support (5) of O sensor (1), EM50 data acquisition unit (3), probe (8), plug (10) and line places heatable adobe sleeping platform; In the soil body of the corresponding A section of A inspection surface, be uniformly distributed with sensor (1); The data acquisition unit (3) that the connecting line (2) of its sensor (1) is installed on steel structure support (5) bottom and A inspection surface is connected, and its data acquisition unit (3) is fixed on the steel structure framework (5); On glass (7) face of B inspection surface, be laid with hole (9), probe (8) be installed on its hole (9) be connected with read table (12) through cable (11); Top cover (4) wherein is installed on the top of steel structure support (5), on the corresponding C of the A of steel structure support (5), B inspection surface, D face, benzene plate (6) is installed.
2. monitoring device according to claim 1 is characterized in that: it is hinged with the hinge that is fixed on the steel structure framework (5) that device top cover (4) is gone up the hinge of installing.
3. monitoring device according to claim 1 is characterized in that: the housing of the steel structure framework (5) of device is uniformly distributed with horizontal, vertical reinforcing strip (13).
4. monitoring device according to claim 1 is characterized in that: sensor (1) and connecting line (2) are placed into the soil in the section.
5. monitoring device according to claim 1 is characterized in that: the steel structure support (5) of device is made up of the triangle steel matter of thickening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203686645U CN202330229U (en) | 2011-09-30 | 2011-09-30 | Device for monitoring water infiltration and water content of soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203686645U CN202330229U (en) | 2011-09-30 | 2011-09-30 | Device for monitoring water infiltration and water content of soil |
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| Publication Number | Publication Date |
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| CN202330229U true CN202330229U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203686645U Expired - Fee Related CN202330229U (en) | 2011-09-30 | 2011-09-30 | Device for monitoring water infiltration and water content of soil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063712A (en) * | 2012-12-27 | 2013-04-24 | 合肥工业大学 | Layered soil moisture lysimeter sensor and installation method thereof |
| CN103499367A (en) * | 2013-07-30 | 2014-01-08 | 合肥工业大学 | Serial-resistance type infiltration range measuring device of two sides of river and measuring method thereof |
| CN105092799A (en) * | 2015-09-14 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | Multi-purpose underground observing room |
| CN106198356A (en) * | 2016-09-14 | 2016-12-07 | 中铁西北科学研究院有限公司 | The measuring method of moisture penetration rule in a kind of loess foundation |
| US9532118B2 (en) | 2012-07-20 | 2016-12-27 | Nutech Ventures | Antenna for wireless underground communication |
| CN106769762A (en) * | 2016-12-15 | 2017-05-31 | 机械工业勘察设计研究院有限公司 | A kind of method of testing of settlement by soaking soil layer wetting process |
| CN108333100A (en) * | 2018-02-13 | 2018-07-27 | 鞍钢股份有限公司 | A kind of experimental rig and method of simulation soil corrosion |
-
2011
- 2011-09-30 CN CN2011203686645U patent/CN202330229U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9532118B2 (en) | 2012-07-20 | 2016-12-27 | Nutech Ventures | Antenna for wireless underground communication |
| CN104769773B (en) * | 2012-07-20 | 2017-12-05 | 纽泰克温图斯公司 | The antenna of wireless underground communication |
| CN103063712A (en) * | 2012-12-27 | 2013-04-24 | 合肥工业大学 | Layered soil moisture lysimeter sensor and installation method thereof |
| CN103499367A (en) * | 2013-07-30 | 2014-01-08 | 合肥工业大学 | Serial-resistance type infiltration range measuring device of two sides of river and measuring method thereof |
| CN103499367B (en) * | 2013-07-30 | 2016-09-14 | 合肥工业大学 | String two sides, resistive stream Infiltrating extrent method of testing |
| CN105092799A (en) * | 2015-09-14 | 2015-11-25 | 中国农业科学院农业资源与农业区划研究所 | Multi-purpose underground observing room |
| CN106198356A (en) * | 2016-09-14 | 2016-12-07 | 中铁西北科学研究院有限公司 | The measuring method of moisture penetration rule in a kind of loess foundation |
| CN106769762A (en) * | 2016-12-15 | 2017-05-31 | 机械工业勘察设计研究院有限公司 | A kind of method of testing of settlement by soaking soil layer wetting process |
| CN106769762B (en) * | 2016-12-15 | 2019-01-22 | 机械工业勘察设计研究院有限公司 | A kind of test method of collapsibility soil layer wetting process |
| CN108333100A (en) * | 2018-02-13 | 2018-07-27 | 鞍钢股份有限公司 | A kind of experimental rig and method of simulation soil corrosion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120711 Termination date: 20150930 |
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| EXPY | Termination of patent right or utility model |