CN107747306A - A kind of cross with Yu Haiyang ultra-soft soil in-situ test flows feeler inspection probe entirely - Google Patents
A kind of cross with Yu Haiyang ultra-soft soil in-situ test flows feeler inspection probe entirely Download PDFInfo
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- CN107747306A CN107747306A CN201711083821.6A CN201711083821A CN107747306A CN 107747306 A CN107747306 A CN 107747306A CN 201711083821 A CN201711083821 A CN 201711083821A CN 107747306 A CN107747306 A CN 107747306A
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- soft soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D1/00—Investigation of foundation soil in situ
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- Engineering & Computer Science (AREA)
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- Analytical Chemistry (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of cross with Yu Haiyang ultra-soft soil in-situ test to flow feeler inspection probe entirely, including test system and visit end, the spy end is in cross shape, the spy end is perpendicularly fixed at below test system, the test system top is connected with feeler lever, the test system includes sensor, signal transmssion line and the sleeve being set on feeler lever, the sleeve includes friction sleeve and end resistance sleeve, the friction sleeve is arranged above end resistance sleeve, the sensor includes being arranged on friction pressure sensor and the end resistance pressure sensor and pore water pressure sensor that are arranged on end resistance sleeve on friction sleeve, the friction pressure sensor is used to sense side friction, the end resistance sleeve is provided with pore pressure filter ring close to end side is visited.The present invention can be directed to seabed/underwater ultra-soft soil layer and carry out full stream feeler inspection, accurately determine the related physical mechanical property parameter of ultra-soft soil layer, reliable reference frame is provided for multibeam calibration and foundation construction.
Description
Technical field
The present invention relates to a kind of cross with Yu Haiyang ultra-soft soil in-situ test to flow feeler inspection probe entirely, and it is that one kind can obtain
Take seabed/water-bed ultra-soft soil intensity and consolidate the in-situ testing device of the specific form of property, belong to Geotechnical Engineering and ocean work
Journey technical field.
Background technology
There is increasing engineering project in country in terms of the construction of coastal area and to the exploitation of marine resources, all
Such as reclaiming land around sea, bridge spanning the sea, seabed tunnel, offshore wind farm, offshore drilling platformses, seabed combustible ice drilling and producing platform
Deng.While the number of entry significantly increases, ocean engineering also constantly from coastal waters to off-lying sea, is developed from shallow sea to deep-sea,
Scale of the project increasingly increases.This security, durability to ocean engineering, it is proposed that higher requirement.
In ocean engineering, the with a varied topography, soil body easily disturbs, and artificial coring can not accurately reflect the underwater soil body
Actual physical mechanical property, this problem can effectively be solved by carrying out in-situ testing technique in seabed, and provided for engineering can
The reference frame leaned on.But due to a series of restriction of environment such as marine stormy waves, ocean current, many in-situ testing techniques or it can not open
Exhibition, or construction cost are higher.Seabed static sounding technology is effective seabed that a kind of cost is cheap, data are accurate, reliability is high
Investigation way, it is applied in recent years after foreign countries' introduction in many engineerings.Conventional cone probe land feeler inspection and seabed compared with
In hard stratum, good utilization can be obtained, determines accurate data.But because conventional transducer sectional dimension is smaller,
In seabed/underwater ultra-soft soil in penetration process, the soil body resistance and the changing value of resistance being subject to are all smaller, this less resistance
Power and resistance changing value are difficult to be caught by end resistance force snesor.
In recent years, ocean engineering development is more and more rapider, to the engineering investigation required precision more and more higher of submarine soil layer,
It is use and exploration on land identical conventional transducer since this technology transfer country of seabed static sounding more.Conventional transducer is present
Following shortcoming：1st, full stream cone penetration test can not be realized；2nd, sectional area is smaller, by end resistance and end in penetration process in ultra-soft soil
Resistance changing value is smaller, and it is inaccurate to often result in record data, or even can not reading situation.
The content of the invention
For in seabed/underwater ultra-soft soil cone penetration test, probe institute's receiving end in ultra-soft soil layer penetration process under water
Resistance and end resistance changing value are smaller, it is difficult to accurate measurement so that the physical mechanical property index of the soil body be difficult to accurate acquisition,
The problem of being brought inconvenience to subsequent construction, the present invention propose a kind of cross and flow feeler inspection probe entirely, utilize the special of the probe
Shape and internal sensor device assembly, lifted when visiting end with static(al) injection system to seabed, after injection submarine soil layer, Ke Yilian
Relevant parameter that is continuous, accurately determining soil layer at depth of penetration, its concrete technical scheme are as follows：
A kind of cross with Yu Haiyang ultra-soft soil in-situ test flows feeler inspection probe, including test system and spy end, the spy entirely
End is perpendicularly fixed at test system end, and the spy end is in cross shape,
The test system upper end is connected with feeler lever, and the test system includes sensor, signal transmssion line and is set in feeler lever
On sleeve, the sleeve includes friction sleeve and end resistance sleeve, and the friction sleeve is arranged above end resistance sleeve, the biography
Sensor include being arranged on friction sleeve friction pressure sensor and the end resistance pressure sensor that is arranged on end resistance sleeve and
Pore water pressure sensor, the friction pressure sensor are used to sense side friction, and the end resistance sleeve is close to spy end side
It is provided with pore pressure filter ring, the pore pressure filter ring can seep water and act on pore water pressure sensor, the pore water pressure
Force snesor is used to sense pore water pressure, and the end resistance pressure sensor is used to sense end resistance.
The friction pressure sensor, end resistance pressure sensor and pore water pressure sensor connect with signal transmssion line
Connect, its test data is sent out by signal transmssion line, and the signal transmssion line sequentially passes through sleeve and feeler lever, and draws certainly
By holding, free end is used to be connected with data receiver and display device.
The spy end includes four branches, and four branches are in cylindrical shape.
It is 150-250cm that projected area is rectified in the spy2。
The surface at the feeler lever and spy end is sprayed with antirust coat.
The antirust coat is made by sandblasting and/or spray painting.
The present invention operation principle be：
The present invention is connected to seabed static cone penetration equipment in use, popping one's head in by feeler lever, will be overall by ship or other means of transports
Equipment hoisting is transferred to underwater or seabed to exploring place.By static cone penetration equipment by among the probe injection soil body, visit
Head can carry out the work.
With being continuously increased for depth of penetration, the probe can continuously measure side friction, end resistance, pore water pressure
The data such as power, its data representation are friction pressure sensor, end resistance pressure sensor, pore water pressure sensor in difference
Under the conditions of caused different magnitudes of voltage, i.e. electric signal, the electric signal is transmitted by coaxial data cable；Receiving
After device records its electric signal, by necessarily handling, you can obtain the measured value of three groups of data of the above.By empirical equation to surveying
Pressure element determination data is handled, and can obtain continuous stress-depth curve of the soil body, so as to calculate seabed or water-bed soft
The intensive parameter of soil；By handling pore water pressure sensor measured value, with reference to correlation analysis can obtain seabed or
The vertical consolidation parameters of water-bed weak soil.
The present invention is popped one's head in using cross, is expanded probe area while stable pop one's head in, is exaggerated probe by end resistance
Power and end resistance changing value, are easy to measuring system accurately to determine.The probe form, can during injection ultra-soft soil layer simultaneously
It is easy to the soil body to stream, has and realize full stream cone penetration test function.When reconnoitring the early stage that basic engineering is carried out to test site, adopt
Static sounding probe is flowed entirely with a kind of cross of the present invention, will be easily facilitated and is fast and accurately determined that related soil parameter refers to
Mark.
The beneficial effects of the invention are as follows：
The present invention can be directed to seabed/underwater ultra-soft soil layer and carry out full stream cone penetration test, accurately determine the correlation of ultra-soft soil layer
Physico-mechanical properties parameter, reliable reference frame is provided for multibeam calibration and foundation construction, while also in research and development seabed/water
New trial is made that on the road of lower ultra-soft soil static sounding dedicated probe, is proposed for the development of seabed static sounding technology
New research direction.
Unique cross of the invention visits end and expands probe area while stable pop one's head in, and is exaggerated probe by end resistance
Power and end resistance changing value, are easy to test system accurately to determine.
The present invention is a brand-new full stream feeler inspection probe of seabed static sounding Technology design, and having filled up domestic does not have specially
Vacancy for seabed/full stream feeler inspection dedicated probe of underwater ultra-soft soil.
The present invention can utilize internal pore water pressure sensor, rub with the change of injection ultra-soft soil soil depth
The magnitude of voltage of damping force snesor and end resistance pressure sensor, continuously exporting change, and this small variation is put
Greatly, it is easy to test system to catch record.Subsequently for this changing value carry out respective handling, you can obtain soil strength parameter with
The continuous rule of change in depth；Function with full stream feeler inspection.Meanwhile the present invention can METHOD FOR CONTINUOUS DETERMINATION with change in depth hole
Hydraulic pressure force data, formula is incorporated experience into, then can obtain the more accurately vertical consolidation parameters of submarine soil.Further to sea
The physical mechanical property index of bottom/underwater ultra-soft soil body makes true and reliable analysis, provides for ocean engineering construction and conscientiously may be used
The reference frame leaned on.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention,
Fig. 2 is Fig. 1 top view,
Fig. 3 is that Conventional cone probe is popped one's head in laboratory internal model type groove comparison of test results figure with cross of the present invention,
Reference numerals list：1-feeler lever, 2-visit end, 3-test system, 31-friction pressure sensor, 32-end resistance pressure
Sensor, 33-pore water pressure sensor, 34-pore pressure filter ring, 35-sleeve, 351-friction sleeve, 352-end resistance set
Cylinder, 4-signal transmssion line.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following embodiments are only
For illustrating the present invention rather than limitation the scope of the present invention.
Fig. 1 is the structural representation of the present invention, and Fig. 2 is Fig. 1 top view, and the component names marked in figure are followed successively by：Visit
Bar 1, visit end 2, test system 3, friction pressure sensor 31, end resistance pressure sensor 32, pore water pressure sensor 33, pore pressure
Filter ring 34, sleeve 35, rub sleeve 351, end resistance sleeve 352, signal transmssion line 4.
Visible with reference to accompanying drawing, this flows feeler inspection with the cross of Yu Haiyang ultra-soft soil in-situ test and popped one's head in entirely, it is characterised in that
Including test system and end is visited, the spy end is perpendicularly fixed at test system end, and the spy end is in cross shape, the test
System upper end is connected with feeler lever, and the test system includes sensor, signal transmssion line and the sleeve being set on feeler lever, described
Sleeve includes friction sleeve and end resistance sleeve, and the friction sleeve splices above end resistance sleeve, and the sensor includes setting
Friction pressure sensor and the end resistance pressure sensor and pore water pressure that are arranged on end resistance sleeve pass on friction sleeve
Sensor, the friction pressure sensor are used to sense side friction, and the end resistance sleeve is provided with pore pressure mistake close to end side is visited
Ring is filtered, the pore pressure filter ring can seep water and act on pore water pressure sensor, and the pore water pressure sensor is used for
Sense pore water pressure, the end resistance pressure sensor is used to sense end resistance.During present invention work, it is installed on seabed static(al) and touches
Visit in equipment, the test marine site specified is transferred to from surveying vessel lifting by steel twisted rope, then by static cone penetration equipment injection seabed
Soft Soil Layer designated depth measures.The present invention can measure its suffered end resistance in the Soft Soil Layer of seabed, side friction
Power, pore water pressure.
The friction pressure sensor, end resistance pressure sensor and pore water pressure sensor connect with signal transmssion line
Connect, its test data is sent out by signal transmssion line, and the signal transmssion line sequentially passes through sleeve and feeler lever, and draws certainly
By holding, free end is used to be connected with data receiver and display device.Test signal is transmitted by signal transmssion line.
The spy end includes four branches, and four branches are in cylindrical shape.Projected area is rectified in the spy
150-250cm2.The spy end of cross shape, expand spy end area, amplification present invention injection in seabed/underwater ultra-soft soil
The resistance and resistance changing value run into journey so that this data is more easy to be caught and precisely recorded by end resistance force snesor；
Criss-cross spy end be in multidirectional axial symmery shape so that is popped one's head in ultra-soft soil layer in penetration process respectively to stability under loading, effectively
Prevent feeler lever tilts from causing to measure inaccurate situation generation.Cross visit end be ultra-soft soil in penetration process of pop one's head in around pop one's head in around
Stream provides approach, it is achieved thereby that the function of stream feeler inspection entirely.When reconnoitring the early stage that basic engineering is carried out to test site, adopt
With the present invention, it will easily facilitate and fast and accurately determine related soil parameter index.
The surface at the feeler lever and spy end is sprayed with antirust coat.The antirust coat is made by sandblasting and/or spray painting.Prevent this hair
Bright surface oxidisation, the accuracy for increasing the service life and testing.
Name a specific size embodiment of the invention：
The a diameter of 35.7mm of feeler lever, the orthographic projection for visiting end is area 200cm2 circle.
The thickness of pore pressure filter ring 34 is 5mm, and the friction height of sleeve 351 is 133.7mm.
Fig. 3 is that Conventional cone probe is popped one's head in laboratory internal model type groove comparison of test results figure with cross of the present invention.By
Scheme it is visible, the present invention can in the ultra-soft soil that conventional transducer can not perceive end resistance normal work, accurate measurement end resistance pole
Its changing value, measuring accuracy substantially increase.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned technological means, in addition to
Formed technical scheme is combined by above technical characteristic.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (6)
1. a kind of cross with Yu Haiyang ultra-soft soil in-situ test flows feeler inspection probe entirely, it is characterised in that including test system and
End is visited, the spy end is perpendicularly fixed at test system end, and the spy end is in cross shape,
The test system upper end is connected with feeler lever, and the test system includes sensor, signal transmssion line and is set in feeler lever
On sleeve, the sleeve includes friction sleeve and end resistance sleeve, and the friction sleeve is arranged above end resistance sleeve, the biography
Sensor include being arranged on friction sleeve friction pressure sensor and the end resistance pressure sensor that is arranged on end resistance sleeve and
Pore water pressure sensor, the friction pressure sensor are used to sense side friction, and the end resistance sleeve is close to spy end side
It is provided with pore pressure filter ring, the pore pressure filter ring can seep water and act on pore water pressure sensor, the pore water pressure
Force snesor is used to sense pore water pressure, and the end resistance pressure sensor is used to sense end resistance.
2. a kind of cross with Yu Haiyang ultra-soft soil in-situ test according to claim 1 flows feeler inspection probe entirely, it is special
Sign is that the friction pressure sensor, end resistance pressure sensor and pore water pressure sensor are connected with signal transmssion line,
Its test data is sent out by signal transmssion line, and the signal transmssion line sequentially passes through sleeve and feeler lever, and draws freedom
End, free end are used to be connected with data receiver and display device.
3. a kind of cross with Yu Haiyang ultra-soft soil in-situ test according to claim 2 flows feeler inspection probe entirely, it is special
Sign is that the spy end includes four branches, and four branches are in cylindrical shape.
4. a kind of cross with Yu Haiyang ultra-soft soil in-situ test according to claim 3 flows feeler inspection probe entirely, it is special
It is 150-250cm that sign, which is that projected area is rectified in the spy,2。
5. a kind of cross with Yu Haiyang ultra-soft soil in-situ test according to claim 4 flows feeler inspection probe entirely, it is special
Sign is that the feeler lever and the surface at spy end are sprayed with antirust coat.
6. a kind of cross with Yu Haiyang ultra-soft soil in-situ test according to claim 5 flows feeler inspection probe entirely, it is special
Sign is that the antirust coat is made by sandblasting and/or spray painting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711083821.6A CN107747306B (en) | 2017-11-07 | 2017-11-07 | A kind of cross with Yu Haiyang's ultra-soft soil in-situ test flows feeler inspection probe entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711083821.6A CN107747306B (en) | 2017-11-07 | 2017-11-07 | A kind of cross with Yu Haiyang's ultra-soft soil in-situ test flows feeler inspection probe entirely |
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| Publication Number | Publication Date |
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| CN107747306A true CN107747306A (en) | 2018-03-02 |
| CN107747306B CN107747306B (en) | 2019-09-10 |
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| CN201711083821.6A Active CN107747306B (en) | 2017-11-07 | 2017-11-07 | A kind of cross with Yu Haiyang's ultra-soft soil in-situ test flows feeler inspection probe entirely |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110333182A (en) * | 2019-07-01 | 2019-10-15 | 大连理工大学 | A kind of weak soil treatment of the earth-Soil Interface friction parameter long range in-situ measuring method |
| WO2021000342A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Apparatus for continuously measuring soil parameters of large-scale soft soil site |
| CN116716864A (en) * | 2023-08-09 | 2023-09-08 | 深圳市普罗海洋科技有限责任公司 | Seabed static sounding system and method for shallow stratum multiparameter survey |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6018909A (en) * | 1996-05-28 | 2000-02-01 | Potts; David A | Subsurface soil conditioning |
| CN203275674U (en) * | 2013-05-24 | 2013-11-06 | 浙江华东建设工程有限公司 | Static sounding device for pipe detection in soft-soil area of beach |
| CN107326889A (en) * | 2017-07-31 | 2017-11-07 | 天津大学 | A kind of bar shaped probe and computational methods for detecting bury shear stress |
-
2017
- 2017-11-07 CN CN201711083821.6A patent/CN107747306B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6018909A (en) * | 1996-05-28 | 2000-02-01 | Potts; David A | Subsurface soil conditioning |
| CN203275674U (en) * | 2013-05-24 | 2013-11-06 | 浙江华东建设工程有限公司 | Static sounding device for pipe detection in soft-soil area of beach |
| CN107326889A (en) * | 2017-07-31 | 2017-11-07 | 天津大学 | A kind of bar shaped probe and computational methods for detecting bury shear stress |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110333182A (en) * | 2019-07-01 | 2019-10-15 | 大连理工大学 | A kind of weak soil treatment of the earth-Soil Interface friction parameter long range in-situ measuring method |
| WO2021000342A1 (en) * | 2019-07-01 | 2021-01-07 | 大连理工大学 | Apparatus for continuously measuring soil parameters of large-scale soft soil site |
| CN116716864A (en) * | 2023-08-09 | 2023-09-08 | 深圳市普罗海洋科技有限责任公司 | Seabed static sounding system and method for shallow stratum multiparameter survey |
| CN116716864B (en) * | 2023-08-09 | 2023-10-27 | 深圳市普罗海洋科技有限责任公司 | Seabed static sounding system and method for shallow stratum multiparameter survey |
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| CN107747306B (en) | 2019-09-10 |
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