CN103255757A - Energy environment static sounding probe capable of measuring deep soil temperatures - Google Patents
Energy environment static sounding probe capable of measuring deep soil temperatures Download PDFInfo
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- CN103255757A CN103255757A CN2013102196712A CN201310219671A CN103255757A CN 103255757 A CN103255757 A CN 103255757A CN 2013102196712 A CN2013102196712 A CN 2013102196712A CN 201310219671 A CN201310219671 A CN 201310219671A CN 103255757 A CN103255757 A CN 103255757A
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Abstract
The invention discloses an energy environment static sounding probe capable of measuring deep soil temperatures. A coaxial cable (1) is utilized to transmit signals and data. A probe rod (2) and a waterproof ring (3) are arranged on the upper portion of the probe. An analog-digital converter (4) is arranged in the middle of the probe. A sealing ring (5) and a sidewall friction cylinder (6) are arranged on the lower portion of the probe rod (2). A clinometer (7) and a sidewall friction resistance sensor (8) are arranged in the sidewall friction cylinder (6). A conical tip resistance sensor (9) and a temperature sensor (10) are arranged on the lower portion of the sidewall friction cylinder (6). The conical probe (12) is connected to the lower portion of the sidewall friction cylinder (6) and can prevent water and soil through a sealing ring (11). The probe has the advantages of being capable of maintaining in-situ, direct, rapid, accurate, economical, and the like. Therefore, the probe is a powerful detection tool for environmental geotechnical engineering practice and geothermal exploitation.
Description
Technical field
But the present invention relates to the energy environment static sounding probe of a kind of in-site measurement deep soil body temperature, belong to a kind of in the geotechnical engineering field can be directly, the static sounding device of analytical test ever-frozen ground, seasonal frozen ground or contaminated inside soil body variations in temperature continuously.
Background technology
The static sounding technology refers to utilize pressure apparatus will have the sounding rod indentation test soil layer of contact probe, the static point resistance of throughput examining system test soil, sidewall frictional resistance etc., can determine some basic physico mechanical characteristic of soil, as the modulus of deformation of soil, the allowable bearing of soil etc.The static sounding technology is the history in existing more than 80 year so far.The extensive use static sounding has partly or entirely replaced probing and the sampling in the engineering investigation in the world.China at first succeeded in developing the electric measuring type static sounding and is applied to prospecting in nineteen sixty-five.Along with the fast development of sensor technology, a lot of new static sounding technology occurred in recent years, these technology can obtain pore water pressure, seismic wave, pollutant proterties, temperature even the image of soil layer quickly and accurately.It has been widely used in the environmental geotechnical field abroad.China starts to walk than later in the research of novel static sounding sensor, penetration resistance or specific penetration resistance that present domestic widely used single doube bridge static sounding only can be tested, sidewall frictional resistance, the basic physico mechanical characteristic of confirmable soil layer.Along with China's rapid economy development, China's extremely frigid zones is the engineering construction degree of progress speed on ever-frozen ground or seasonal frozen ground, and this just inevitably will determine soil body engineering properties parameter.Ever-frozen ground or seasonal frozen ground sampling difficulty, and sample in transportation, storage process to the environmental requirement harshness, sample is vulnerable to disturbance, its actual value of laboratory test results substantial deviation.Existing in-situ testing technique does not possess the function of temperature test.In addition, in the time of China economic development, the soil body pollutes also more and more, and the temperature characterisitic after the soil body is contaminated also can change, and pollutant presents different characteristics under different temperatures, and in site measurement inside soil body temperature is to need the problem considered.The present invention is based on conventional static sounding probe, a kind of convenient, fast, in-situ test instrument that testing cost is cheap has been proposed, can measure the relative temperature of the actual absolute temperature of inside soil body or different soil, for geotechnical engineering practice and geothermal exploitation provide strong testing tool.
Summary of the invention
Technical problem: the technical problem to be solved in the present invention is the defective that exists at the quiet spy technology of domestic existing single doube bridge, proposes a kind of energy environment static sounding probe of measuring deep soil body temperature.
Technical scheme: a kind of energy environment static sounding probe of measuring deep soil body temperature of the present invention adopts coaxial cable to transmit signal and data, top is feeler lever and water proof ring, the middle part is provided with analog-digital converter, the feeler lever bottom is provided with sealing ring and sidewall friction tube, be provided with inclinometer, sidewall frictional resistance sensor in the inside of sidewall friction tube, probe segment is provided with temperature pick up, static point resistance sensor, and conical probe is connected the bottom of sidewall friction tube, and the junction is by the anti-soil of sealing ring waterproof.
Described conical probe drift angle is 60 °, cone bottom diameter 35.7mm, and the awl basal cross section is long-pending to be 10cm
2
Described sidewall friction tube external diameter is 35.7mm, surface area 150cm
2
Described temperature pick up is the thermocouple detector, is arranged at the middle and lower part of probe, and two kinds of patterns of relative temperature of measuring actual absolute temperature and different soil can be set.
The energy environment static sounding probe that can directly measure deep soil body temperature of the present invention, its probe portion mainly are made up of coaxial cable, water proof ring, analog-digital converter, sealing ring, sidewall friction tube, inclinometer, sidewall frictional resistance sensor, temperature pick up, static point resistance sensor and inner Circuits System thereof.Before the test, according to test request, select the temperature test pattern.Measure relative temperature as need, behind injection soil layer 0.3～0.5m, stopped 2 minutes, make probe temperature identical with soil temperature, and initial temperature is set is 0.Under the injection systemic effect, the temperature static sounding probe is with in the constant rate of speed injection soil layer less than 1.2m/min.The frictional resistance that sidewall frictional resistance sensor measurement sidewall friction tube is subjected to, the penetration resistance that static point resistance sensor measurement conical probe is subjected to, temperature sensor measurement soil body temperature.Temperature is comparatively remarkable to the influence of probe measured value, and therefore the temperature that provides according to temperature pick up compensates and revises measured value.Inclinometer provides the angle of inclination of probe, and depth of penetration is revised.Water proof ring stops water to enter feeler lever inside, avoids circuit to damage.Sealing ring also can prevent soil body approaching side wall friction tube inside in waterproof.After the data of all measurements and record are converted to data signal through analog-digital converter, transfer in the microcomputer collection on the face of land and the storage system through coaxial cable and to preserve, draw the sectional drawing of real-time continuous.By boring sharp penetration resistance, sidewall frictional resistance and soil body temperature, can estimate the original position characteristic of ever-frozen ground, seasonal frozen ground or contaminated soil.
Beneficial effect: because ever-frozen ground or seasonal frozen ground sampling difficulty, specimen temperature changes easily.Temperature changes in the disturbance of drill hole sampling and the transportation soil sample process, makes its actual value of substantial deviation as a result of laboratory test.Existing in-situ test does not generally possess temperature test function.
The invention solves the quiet spy technology of domestic existing single doube bridge and can not directly measure the defective of soil in-situ temperature, by awl point penetration resistance, sidewall frictional resistance and the soil body temperature that produces in the penetration process, the original position characteristic of evaluation ever-frozen ground, seasonal frozen ground or contaminated soil that can be convenient, fast, continuous makes the static sounding technology can serve the geotechnical engineering field more accurate, all sidedly.The present invention has continuity, reliability and repeatable characteristics.
Description of drawings
Fig. 1 is general structure schematic diagram of the present invention,
Wherein have: coaxial cable 1, feeler lever 2, water proof ring 3, analog-digital converter 4, sealing ring 5, sidewall friction tube 6, inclinometer 7, sidewall frictional resistance sensor 8, static point resistance sensor 9, temperature pick up 10, sealing ring 11, conical probe 12.
The specific embodiment
Energy environment static sounding probe employing coaxial cable 1 transmission signal and the data that can be used for directly measuring deep soil body temperature of the present invention, top is feeler lever 2 and water proof ring 3, the middle part is provided with analog-digital converter 4, feeler lever 2 bottoms are provided with sealing ring 5 and sidewall friction tube 6, be provided with inclinometer 7, sidewall frictional resistance sensor 8 in the inside of sidewall friction tube 6, static point resistance sensor 9, conical probe 12 is connected the bottom of sidewall friction tube, temperature pick up 10 is positioned at the middle and lower part of conical probe 12, the anti-soil of sealing ring 11 waterproof.
Conical probe awl point is 60 °, cone bottom diameter 35.7mm, and the awl basal cross section is long-pending to be 10cm
2
Sidewall friction tube external diameter is 35.7mm, surface area 150cm
2
Temperature pick up is arranged at the middle and lower part of conical probe, and actual temperature and the two kinds of patterns of relative temperature measured can be set.
The function of this probe the is integrated function of conventional static sounding (can survey end resistance, frictional resistance) and measurement soil body temperature has solved ever-frozen ground, seasonal frozen ground and has polluted the problem of soil body temperature on-the-spot test, has further developed the content of static sounding technology.
Before the test, according to test request, select the temperature test pattern.Measure relative temperature as need, behind injection soil layer 0.3～0.5m, stopped 2 minutes, make probe temperature identical with soil temperature, and initial temperature is set is 0.Under the injection systemic effect, the temperature static sounding probe is with in the constant rate of speed injection soil layer less than 1.2m/min.The frictional resistance that sidewall frictional resistance sensor measurement sidewall friction tube is subjected to, the penetration resistance that static point resistance sensor measurement conical probe is subjected to, temperature sensor measurement soil body temperature.Temperature is comparatively remarkable to the influence of probe measured value, and therefore the temperature that provides according to temperature pick up compensates and revises measured value.Inclinometer provides the angle of inclination of probe, and depth of penetration is revised.Water proof ring stops water to enter feeler lever inside, avoids circuit to damage.Sealing ring also can prevent soil body approaching side wall friction tube inside in waterproof.After the data of all measurements and record are converted to data signal through analog-digital converter, transfer in the microcomputer collection on the face of land and the storage system through coaxial cable and to preserve, draw the sectional drawing of real-time continuous.By boring sharp penetration resistance, sidewall frictional resistance and inside soil body temperature, can estimate the original position characteristic of ever-frozen ground, seasonal frozen ground or contaminated soil.
Claims (4)
1. the energy environment static sounding probe that can measure deep soil body temperature, it is characterized in that this probe adopts coaxial cable (1) to transmit signal and data, top is feeler lever (2) and water proof ring (3), the middle part is provided with analog-digital converter (4), feeler lever (2) bottom is provided with sealing ring (5) and sidewall friction tube (6), be provided with inclinometer (7) in the inside of sidewall friction tube (6), sidewall frictional resistance sensor (8), probe segment is provided with static point resistance sensor (9), temperature pick up (10), conical probe (12) is connected the bottom of sidewall friction tube (6), adopts the anti-soil of sealing ring (11) waterproof.
2. a kind of energy environment static sounding probe of measuring deep soil body temperature according to claim 1 is characterized in that the angle, awl pinnacle of conical probe (12) is 60 °, and cone bottom diameter is 35.7mm, and the awl basal cross section is long-pending to be 10cm
2
3. a kind of energy environment static sounding probe of measuring deep soil body temperature according to claim 1 is characterized in that sidewall friction tube (6) external diameter is 35.7mm, surface area 150cm
2
4. a kind of energy environment static sounding probe of measuring deep soil body temperature according to claim 1, temperature pick up (10) is arranged at the middle and lower part of conical probe (12), temperature pick up (10) adopts the thermocouple detector, accuracy of measurement: 0.01 grade, resolution ratio 0.1uV and 0.1m Ω can arrange actual temperature and the two kinds of patterns of relative temperature measured.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102196712A CN103255757A (en) | 2013-06-03 | 2013-06-03 | Energy environment static sounding probe capable of measuring deep soil temperatures |
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| CN2013102196712A CN103255757A (en) | 2013-06-03 | 2013-06-03 | Energy environment static sounding probe capable of measuring deep soil temperatures |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403336A (en) * | 2015-12-16 | 2016-03-16 | 东南大学 | Miniaturized full-bridge sounding test probe |
| CN107100214A (en) * | 2017-06-16 | 2017-08-29 | 中交第航务工程勘察设计院有限公司 | Stake resistance simulation test device |
| CN109537560A (en) * | 2018-12-05 | 2019-03-29 | 天津大学 | A kind of bar shaped static sounding probe and its application suitable for detecting bucket foundation penetration resistance |
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
| CN112034010A (en) * | 2020-09-09 | 2020-12-04 | 东南大学 | Controllable rate resistivity static sounding test system and method for frozen soil exploration |
| CN113026708A (en) * | 2021-03-25 | 2021-06-25 | 绍兴文理学院 | Novel static sounding probe |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1267954A (en) * | 1968-03-20 | 1972-03-22 | Inst Cercetari Tehnologice Pen | Method and apparatus for the static determination of the minimum stress required to cause delayed cracking and fracture welded metals |
| CN202390823U (en) * | 2011-12-13 | 2012-08-22 | 东南大学 | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples |
| CN202390824U (en) * | 2011-12-13 | 2012-08-22 | 东南大学 | Environmental pore pressure static sounding probe capable of sampling soil sample |
| CN102817346A (en) * | 2012-08-27 | 2012-12-12 | 东南大学 | Acoustic static sounding probe used for site identification |
| CN102966086A (en) * | 2012-11-26 | 2013-03-13 | 广东永基建筑基础有限公司 | Multi-bridge static sounding equipment and multi-bridge static sounding test method |
| CN203361119U (en) * | 2013-06-03 | 2013-12-25 | 东南大学 | Energy environment static sounding probe capable of measuring temperature of deep soil |
-
2013
- 2013-06-03 CN CN2013102196712A patent/CN103255757A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1267954A (en) * | 1968-03-20 | 1972-03-22 | Inst Cercetari Tehnologice Pen | Method and apparatus for the static determination of the minimum stress required to cause delayed cracking and fracture welded metals |
| CN202390823U (en) * | 2011-12-13 | 2012-08-22 | 东南大学 | Environmental geotechnical piezocone penetration test cone capable of sampling gas samples |
| CN202390824U (en) * | 2011-12-13 | 2012-08-22 | 东南大学 | Environmental pore pressure static sounding probe capable of sampling soil sample |
| CN102817346A (en) * | 2012-08-27 | 2012-12-12 | 东南大学 | Acoustic static sounding probe used for site identification |
| CN102966086A (en) * | 2012-11-26 | 2013-03-13 | 广东永基建筑基础有限公司 | Multi-bridge static sounding equipment and multi-bridge static sounding test method |
| CN203361119U (en) * | 2013-06-03 | 2013-12-25 | 东南大学 | Energy environment static sounding probe capable of measuring temperature of deep soil |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403336A (en) * | 2015-12-16 | 2016-03-16 | 东南大学 | Miniaturized full-bridge sounding test probe |
| CN105403336B (en) * | 2015-12-16 | 2018-06-12 | 东南大学 | A kind of miniature full-bridge feeler inspection probe |
| CN107100214A (en) * | 2017-06-16 | 2017-08-29 | 中交第航务工程勘察设计院有限公司 | Stake resistance simulation test device |
| CN109537560A (en) * | 2018-12-05 | 2019-03-29 | 天津大学 | A kind of bar shaped static sounding probe and its application suitable for detecting bucket foundation penetration resistance |
| CN111766364A (en) * | 2019-04-02 | 2020-10-13 | 中国地震局工程力学研究所 | Hidden sensor for in-situ experiment and embedding method thereof |
| CN112034010A (en) * | 2020-09-09 | 2020-12-04 | 东南大学 | Controllable rate resistivity static sounding test system and method for frozen soil exploration |
| CN113026708A (en) * | 2021-03-25 | 2021-06-25 | 绍兴文理学院 | Novel static sounding probe |
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Application publication date: 20130821 |