CN108253881A - A kind of offshore platform pile foundation scour hole configuration measurement mechanism and application method - Google Patents
A kind of offshore platform pile foundation scour hole configuration measurement mechanism and application method Download PDFInfo
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- CN108253881A CN108253881A CN201810048615.XA CN201810048615A CN108253881A CN 108253881 A CN108253881 A CN 108253881A CN 201810048615 A CN201810048615 A CN 201810048615A CN 108253881 A CN108253881 A CN 108253881A
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- Prior art keywords
- datum plate
- pile foundation
- resistance bar
- resistance
- electrode slice
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- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000007423 decrease Effects 0.000 claims abstract description 9
- 238000005452 bending Methods 0.000 claims description 11
- 241000209202 Bromus secalinus Species 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000029052 metamorphosis Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/26—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
Abstract
A kind of offshore platform pile foundation scour hole configuration measurement mechanism and application method, device includes datum plate, resistance bar, counterweight, electrode slice, measuring appliance, datum plate is fixed on the sea bed face around pile foundation, resistance bar passes through datum plate, on the sea bed face that counterweight is fixed in resistance bar and is placed in below datum plate, electrode slice is fixed in datum plate and abuts against outside resistance bar, and resistance bar top and electrode slice are connected with measuring appliance；When scour hole occurs in sea bed face decline around pile foundation, counterweight, which moves down, drives resistance bar to move down so that electrode slice abuts against resistance bar different location, and measuring appliance institute measuring resistance value reduces and is converted into the depth value of scour hole.By setting multigroup measuring device on datum plate, the sea bed face around the pile foundation of datum plate covering can be measured, and draw the metamorphosis of scour hole in the plane respectively.The device have the advantages that it is simple in structure, at low cost, facilitate implementation and precision higher, suit large area to popularize use.
Description
Technical field
The present invention relates to a kind of offshore platform pile foundation scour hole configuration measurement mechanism and application methods.
Background technology
With continually developing for submarine oil resources, various ocean platforms are increasing, after platform is built up, around pile foundation
The local water flowing field of force changes, and Secondary Flow is formed in front of pile foundation, and vortex is formed around, leads to flow velocity around pile foundation
Accelerate, cause the starting and migration of silt particle particle so that submarine soil around pile foundation generate it is a degree of wash away, form punching
Brush hole, and then influence the stability of platform.Many scholars have studied ocean hydrodynamic force and liquidate the influence of brush pit formation, using water
Deep measuring method measures concave state, and some scholars are simulated pit formation using indoor model test.
For concave state, water-depth measurement method needs to demarcate water level elevation, and test job is comparatively laborious.So far, still
Have not seen other convenient measuring devices.
Invention content
The present invention provides a kind of offshore platform pile foundation scours to cheat configuration measurement mechanism and application method, which overcome
Deficiency present in background technology.One of the technical solution adopted by the present invention to solve the technical problems is：
A kind of offshore platform pile foundation scour cheats configuration measurement mechanism, it is characterised in that：Including：Datum plate, resistance bar,
Counterweight, electrode slice, measuring appliance, datum plate are fixed on the sea bed face around pile foundation, and resistance bar passes through datum plate, and counterweight is solid
On the sea bed face for being connected on resistance bar and being placed in below datum plate, electrode slice is fixed in datum plate and abuts against outside resistance bar, resistance
Bar top and electrode slice are connected with measuring appliance；
Sea bed face around pile foundation declines when there is scour hole, counterweight move down resistance bar is driven to move down so that
Electrode slice abuts against resistance bar different location, and measuring appliance institute measuring resistance value reduces and is converted into the depth value of scour hole.
Among one preferred embodiment, datum plate offers through hole, and guide part is installed at through hole, and guide part is equipped with and leads
To opening and the directed cavity being connected with guide openings, resistance bar stretches into directed cavity at guide openings, and counterweight, which is located at, to be oriented to
Intracavitary, electrode slice are fixed in the top of guide part.
Among one preferred embodiment, the periphery of resistance bar is wrapped with resistance wire, and the resistance wire on top passes through conducting wire and survey
Measuring device is connected, and electrode slice abuts against outside resistance wire and it is connected by conducting wire with measuring appliance.
Among one preferred embodiment, electrode slice includes planar portions and the bending part being connected with planar portions, planar portions and base
Quasi- plate Joint, bending part abut against resistance bar periphery.
Among one preferred embodiment, through hole number is set as multiple and is evenly distributed on datum plate, and guide part number is set
It is multiple and corresponded with through hole, counterweight, resistance bar, electrode slice and measuring appliance number are set as multiple and one is a pair of
It should.
The technical solution adopted by the present invention to solve the technical problems second is that：It is a kind of using described in above-mentioned any one
Offshore platform pile foundation scour cheats the application method of configuration measurement mechanism, it includes：
Step 10, datum plate is fixed on the sea bed face around pile foundation, resistance bar passes through datum plate and consolidates with counterweight
It connects, electrode slice is fixed in datum plate, resistance bar top and electrode slice is connected with measuring appliance by conducting wire, measuring appliance is positioned over
On platform；
Step 20, do not occur scour hole around pile foundation, sea bed face does not decline, and counterweight remains stationary as, and measuring appliance surveys electricity
Resistance value does not change；
Step 30, occurs scour hole around pile foundation, sea bed face declines, and counterweight moves down drive under its gravity
Resistance bar moves down, and electrode slice abuts against resistance bar upper end position, and measuring appliance institute measuring resistance value becomes smaller, and be converted into scour hole
Depth value.
Among one preferred embodiment, further include, step 40, datum plate arranged for interval have multiple one-to-one counterweights,
Resistance bar, electrode slice, measuring appliance number also are provided with multiple and are corresponded with resistance bar and electrode slice, pass through multiple measuring appliance institutes
Measuring resistance value is converted into scoured pit's depth value, draws the aspect graph in the sea bed face that scour hole is covered in datum plate.
By the above-mentioned description of this invention it is found that compared with prior art, the present invention has the advantages that：
1st, the device operation principle is：
When sea bed face around pile foundation does not occur decline, it is not in move down that counterweight, which is placed on the sea bed face, at this point, surveying
The resistance that measuring device is measured between resistance bar and electrode slice remains same numerical value；
Sea bed face around pile foundation declines when there is scour hole, counterweight move down resistance bar is driven to move down so that
Electrode slice abuts against the upper end position of resistance bar, and measuring appliance institute measuring resistance value reduces and is converted into the depth value of scour hole；
By setting multigroup measuring device on datum plate, can respectively to datum plate covering pile foundation around sea bed face into
Row measures, and draws the metamorphosis of scour hole in the plane.The device have it is simple in structure, at low cost, facilitate implementation and essence
The advantages of degree is higher, suit large area to popularize use.
2nd, there is guiding role to resistance bar, directed cavity has guiding role to counterweight, and electrode slice is solid at guide openings
It is connected on the top of guide part so that electrode slice can keep the contact with resistance bar always, ensure the precision and accuracy of the device.
3rd, the planar portions of electrode slice and datum plate Joint, bending part abut against resistance bar periphery so that bending part has
Certain elasticity ensures that bending part is fitted tightly over outside resistance bar.
Description of the drawings
Fig. 1 is the overall structure diagram that a kind of offshore platform pile foundation scour cheats configuration measurement mechanism.
Specific embodiment
Below by way of specific embodiment, the invention will be further described.
With reference to Fig. 1, a kind of offshore platform pile foundation scour cheats configuration measurement mechanism, including：Datum plate 10, resistance bar
20th, counterweight 30, electrode slice, measuring appliance 40.
Datum plate 10 is fixed on the sea bed face around pile foundation 1.Datum plate 10 uses high strength plastics plate, has higher firm
Degree, it is wide and respectively 20 millimeters and 100 millimeters high, it is 5-10 meters a length of.
In the present embodiment, datum plate 10 offers through hole, and guide part 11 is installed at through hole, and guide part 11 is equipped with and leads
To opening and the directed cavity 12 being connected with guide openings, which leads to sea bed face.Have at guide openings to resistance bar
There is guiding role, directed cavity has guiding role to counterweight.In the present embodiment, through hole number is set as multiple and is uniformly distributed
On datum plate 10, such as the through hole, a diameter of 30 millimeters of through hole can be opened up every 0.5 meter in length direction.Guide part
11 numbers be set as it is multiple and with through hole correspond, 11 outer diameter of guide part can be set as 30 millimeters, thickness be 5 millimeters, guide part
11 can also be used plastic material, and pass through glue sticking at through hole.The extended datum plate in bottom end of guide part 11 simultaneously abuts against
On sea bed face, to carry out guide and limit to counterweight.
The bottom end of resistance bar 20 passes through datum plate 10.In the present embodiment, resistance bar 20 stretches into directed cavity at guide openings
12.The periphery of resistance bar 20 is wrapped with resistance wire 21, and the resistance wire 21 on top is connected by conducting wire with measuring appliance 40.This reality
It applies in example, 20 numbers of resistance bar are set as multiple and are corresponded with guide part 11.
Electrode slice is fixed in the top of guide part 11.In the present embodiment, electrode slice abuts against outside resistance wire 21 and it passes through
Conducting wire 22 is connected with measuring appliance 40.Electrode slice is made of copper sheet and annular is socketed in outside resistance bar 20, and thickness is 1 milli
Rice, length and width are 20 millimeters and 5 millimeters.In the present embodiment, electrode slice number is set as multiple and is corresponded with resistance bar.
In the present embodiment, electrode slice includes planar portions 51 and the bending part 52 that is connected with planar portions 51, planar portions 51 with
The top end face Joint of guide part 11, bending part 52 abut against 21 periphery of resistance wire.So that bending part has certain elasticity, protect
Card bending part is fitted tightly over outside resistance bar.
Counterweight 30 is fixed in the bottom end of resistance bar 20 and is placed on the sea bed face of 10 lower section of datum plate, and positioned at directed cavity
In 12.Counterweight use a diameter of 30 millimeters, thickness be made of 25 millimeters of copper billet, have constant weight.30 numbers of counterweight
It is set as multiple and is corresponded with resistance bar 20.
In the present embodiment, 40 numbers of measuring appliance are also set as multiple and are positioned on platform.
When scour hole occurs in sea bed face decline around pile foundation, counterweight 30, which moves down, drives resistance bar 20 to move down
So that electrode slice abuts against 20 different location of resistance bar, 40 measuring resistance values of measuring appliance reduce and are converted into the depth of scour hole
Value.The distance that the resistance decreasing value of resistance bar and counterweight decline can be measured in advance and obtain conversion relation formula, conversion side
Just.
The application method of the measuring device, it includes：
Step 10, datum plate 10 is fixed on the sea bed face around pile foundation, resistance bar 20 pass through datum plate 10 and with
Heavy mail 30 is affixed, and electrode slice is fixed in datum plate 10, by conducting wire 22 by 20 top of resistance bar and electrode slice and 40 phase of measuring appliance
Connection, measuring appliance 40 are positioned on platform；
Step 20, do not occur scour hole around pile foundation, sea bed face does not decline, and counterweight 30 remains stationary as, 40 institute of measuring appliance
Measuring resistance value does not change；
Step 30, occurs scour hole around pile foundation, sea bed face declines, and counterweight 30 moves down band under its gravity
Dynamic resistance bar 20 moves down, and electrode slice abuts against 20 upper end position of resistance bar, and 40 measuring resistance values of measuring appliance become smaller, and convert
Into scoured pit's depth value.
Step 40,10 arranged for interval of datum plate has multiple one-to-one counterweights 30, resistance bar 20, electrode slice, measures
40 numbers of device also are provided with multiple and are corresponded with resistance bar 20 and electrode slice, are converted by multiple 40 measuring resistance values of measuring appliance
Into scoured pit's depth value, the aspect graph in the sea bed face that scour hole is covered in datum plate is drawn.
The device operation principle is：
When sea bed face around pile foundation does not occur decline, it is not in move down that counterweight, which is placed on the sea bed face, at this point, surveying
The resistance that measuring device is measured between resistance bar and electrode slice remains same numerical value；
Sea bed face around pile foundation declines when there is scour hole, counterweight move down resistance bar is driven to move down so that
Electrode slice abuts against the upper end position of resistance bar, and measuring appliance institute measuring resistance value reduces and is converted into the depth value of scour hole；
By setting multigroup measuring device on datum plate, can respectively to datum plate covering pile foundation around sea bed face into
Row measures, and draws the metamorphosis of scour hole in the plane.The device have it is simple in structure, at low cost, facilitate implementation and essence
The advantages of degree is higher, suit large area to popularize use.
The specific embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change that unsubstantiality is carried out to the present invention, the behavior for invading the scope of the present invention should all be belonged to.
Claims (7)
1. a kind of offshore platform pile foundation scour cheats configuration measurement mechanism, it is characterised in that：Including：Datum plate, is matched at resistance bar
Heavy mail, electrode slice, measuring appliance, datum plate are fixed on the sea bed face around pile foundation, and resistance bar passes through datum plate, and counterweight is affixed
On resistance bar and the sea bed face that is placed in below datum plate, electrode slice is fixed in datum plate and abuts against outside resistance bar, resistance bar
Top and electrode slice are connected with measuring appliance；
When scour hole occurs in sea bed face decline around pile foundation, counterweight, which moves down, drives resistance bar to move down so that electrode
Piece abuts against resistance bar different location, and measuring appliance institute measuring resistance value reduces and is converted into the depth value of scour hole.
2. a kind of offshore platform pile foundation scour hole configuration measurement mechanism as described in claim 1, it is characterised in that：Benchmark
Plate offers through hole, and guide part is installed at through hole, and guide part is equipped with guide openings and is led with what guide openings were connected
To chamber, resistance bar stretches into directed cavity at guide openings, and counterweight is located in directed cavity, and electrode slice is fixed in the top of guide part
End.
3. a kind of offshore platform pile foundation scour hole configuration measurement mechanism as described in claim 1, it is characterised in that：Resistance
The periphery of bar is wrapped with resistance wire, and the resistance wire on top is connected by conducting wire with measuring appliance, and electrode slice abuts against resistance wire
Outside and it is connected by conducting wire with measuring appliance.
4. a kind of offshore platform pile foundation scour hole configuration measurement mechanism as claimed in claim 3, it is characterised in that：Electrode
Piece includes planar portions and the bending part being connected with planar portions, and planar portions and datum plate Joint, bending part abut against resistance bar
Periphery.
5. a kind of offshore platform pile foundation scour hole configuration measurement mechanism as claimed in claim 2, it is characterised in that：Run through
Hole number is set as multiple and is evenly distributed on datum plate, and guide part number is set as multiple and is corresponded with through hole, counterweight
Part, resistance bar, electrode slice and measuring appliance number are set as multiple and correspond.
6. a kind of offshore platform pile foundation scour using described in any one in claim 1 to 5 cheats configuration measurement mechanism
Application method, it is characterised in that：It includes：
Step 10, datum plate is fixed on the sea bed face around pile foundation, resistance bar passes through datum plate and, electricity affixed with counterweight
Pole piece is fixed in datum plate, resistance bar top and electrode slice is connected with measuring appliance by conducting wire, measuring appliance is positioned over platform
On；
Step 20, do not occur scour hole around pile foundation, sea bed face does not decline, and counterweight remains stationary as, measuring appliance institute measuring resistance value
Do not change；
Step 30, occurs scour hole around pile foundation, sea bed face declines, and counterweight moves down drive resistance under its gravity
Bar moves down, and electrode slice abuts against resistance bar upper end position, and measuring appliance institute measuring resistance value becomes smaller, and be converted into scoured pit's depth
Value.
7. a kind of application method of offshore platform pile foundation scour hole as claimed in claim 6 configuration measurement mechanism, special
Sign is：It further includes, step 40, datum plate arranged for interval has multiple one-to-one counterweights, resistance bar, electrode slice, measures
Device number also is provided with multiple and is corresponded with resistance bar and electrode slice, is converted into and washed away by multiple measuring appliance institutes measuring resistance value
Depth value is cheated, draws the aspect graph in the sea bed face that scour hole is covered in datum plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048615.XA CN108253881B (en) | 2018-01-18 | 2018-01-18 | Offshore oil platform pile foundation washout pit form measuring device and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810048615.XA CN108253881B (en) | 2018-01-18 | 2018-01-18 | Offshore oil platform pile foundation washout pit form measuring device and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108253881A true CN108253881A (en) | 2018-07-06 |
| CN108253881B CN108253881B (en) | 2020-05-05 |
Family
ID=62741034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810048615.XA Expired - Fee Related CN108253881B (en) | 2018-01-18 | 2018-01-18 | Offshore oil platform pile foundation washout pit form measuring device and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108253881B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021081748A1 (en) * | 2019-10-29 | 2021-05-06 | 浙江大学 | Self-driving sensor capable of being used for testing in real time lateral resistance and end resistance of marine pipe pile, and testing device |
| CN113123376A (en) * | 2021-04-23 | 2021-07-16 | 中国海洋大学 | Method for detecting, managing and reinforcing scouring form of pile foundation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1474751A (en) * | 1975-07-23 | 1977-05-25 | Ferranti Ltd | Angle measurement |
| US4054862A (en) * | 1975-10-28 | 1977-10-18 | Raytheon Company | Ranging system with resolution of correlator ambiguities |
| US4749858A (en) * | 1986-08-27 | 1988-06-07 | Troxler Electronic Laboratories, Inc. | Nuclear measuring gauge with automatic detection of source depth |
| CN101464481A (en) * | 2008-12-31 | 2009-06-24 | 中国海洋大学 | Resistivity monitoring method and apparatus for sea floor erosion/deposition dynamic process |
| CN101799295A (en) * | 2010-03-11 | 2010-08-11 | 清华大学 | Electronic bathymeter |
| KR101489903B1 (en) * | 2014-07-03 | 2015-02-06 | (주)지오시스템리서치 | Seabed change measurement device and analysis system for seabed topography using the same |
| CN105040747A (en) * | 2015-04-21 | 2015-11-11 | 浙江大学 | Real-time monitoring device and method for scouring test on local of pile structure |
| CN106908045A (en) * | 2017-02-21 | 2017-06-30 | 青岛海洋地质研究所 | It is a kind of to deform long-term observation device from brill cable-free type seabed |
-
2018
- 2018-01-18 CN CN201810048615.XA patent/CN108253881B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1474751A (en) * | 1975-07-23 | 1977-05-25 | Ferranti Ltd | Angle measurement |
| US4054862A (en) * | 1975-10-28 | 1977-10-18 | Raytheon Company | Ranging system with resolution of correlator ambiguities |
| US4749858A (en) * | 1986-08-27 | 1988-06-07 | Troxler Electronic Laboratories, Inc. | Nuclear measuring gauge with automatic detection of source depth |
| CN101464481A (en) * | 2008-12-31 | 2009-06-24 | 中国海洋大学 | Resistivity monitoring method and apparatus for sea floor erosion/deposition dynamic process |
| CN101799295A (en) * | 2010-03-11 | 2010-08-11 | 清华大学 | Electronic bathymeter |
| KR101489903B1 (en) * | 2014-07-03 | 2015-02-06 | (주)지오시스템리서치 | Seabed change measurement device and analysis system for seabed topography using the same |
| CN105040747A (en) * | 2015-04-21 | 2015-11-11 | 浙江大学 | Real-time monitoring device and method for scouring test on local of pile structure |
| CN106908045A (en) * | 2017-02-21 | 2017-06-30 | 青岛海洋地质研究所 | It is a kind of to deform long-term observation device from brill cable-free type seabed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021081748A1 (en) * | 2019-10-29 | 2021-05-06 | 浙江大学 | Self-driving sensor capable of being used for testing in real time lateral resistance and end resistance of marine pipe pile, and testing device |
| CN113123376A (en) * | 2021-04-23 | 2021-07-16 | 中国海洋大学 | Method for detecting, managing and reinforcing scouring form of pile foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108253881B (en) | 2020-05-05 |
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