CN207662760U - Offshore anti-liquefying ability in-situ measurement device - Google Patents
Offshore anti-liquefying ability in-situ measurement device Download PDFInfo
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- CN207662760U CN207662760U CN201721749420.5U CN201721749420U CN207662760U CN 207662760 U CN207662760 U CN 207662760U CN 201721749420 U CN201721749420 U CN 201721749420U CN 207662760 U CN207662760 U CN 207662760U
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- feeler lever
- measurement device
- situ measurement
- counterweight cabin
- injection
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Abstract
The utility model discloses a kind of Offshore anti-liquefying ability in-situ measurement devices, including the use of the feeler lever in freely falling body effect injection bottom sediment, counterweight cabin and data module, counterweight cabin is mounted on feeler lever upper end, for placing clump weight in counterweight cabin, fitting depth measuring part on the outside of feeler lever, unidirectional mobile mechanism is equipped between depth survey component and feeler lever, unidirectional mobile mechanism depth survey component in feeler lever injection deposit can move up, and velocity measurement apparatus can be maintained to the rearmost position moved up when feeler lever takes out from deposit, to obtain the depth of feeler lever injection deposit；Data module includes acceleration analysis element and power supply module, and power supply module is acceleration analysis power elements.The utility model combines the advantages of in-situ measuring methods such as SPT, CPT, has many advantages, such as that easy to operate, accuracy is high, and accurate measurement data and Research foundation are provided for the prevention and improvement of coastal geology disaster.
Description
Technical field
The utility model is related to bottom sediment detection devices, belong to seabottom geology engineering field, and in particular to Yi Zhongji
In the Offshore anti-liquefying ability in-situ measurement device of freely falling body principle.
Background technology
Marine sediment refers to the general name that various marine sdeimentations are formed by bottom sediment, heavy by medium of seawater
Product deposits many factors that producing cause includes physics, chemical and biological, the formation of these deposits in the substance in seabed
Process is frequently not to carry out in isolation, is all the geologic body that comprehensive function generates mostly.The seawater for traditionally pressing residing region is deep
Deposit is divided by degree：0~20 meter be nearshore deposit, 20~200 meters be neritic deposit, 200~2000 meters be that bathyal region is heavy
Product is more than 2000 meters for absmal deposit.
The estimation of stability of Offshore has important work for the prevention and improvement of coastal geology disaster
With, wherein the liquefaction of bottom sediment is a kind of very common coastal waters geological disaster phenomenon under wave action, after liquefying
Submarine soil unstability can be caused, endangers and personnel safety and causes any property loss, it is serious or even geology or Oceanic disasters can be caused.
Therefore, how to carry out efficient, high quality test to the physics of deposition, mechanical property is an important problem, sea-bottom deposit
The research of object anti-liquefying ability has important role for liquefied prediction and prevention, to protection marine engineering facility and the people
Life security important in inhibiting.
Currently, bottom sediment anti-liquefying ability differentiates or measurement method mainly has：Standard piercing method, Cone Penetration Test with
And the methods of shear stress, shearing strain and principle of effective stress.Standard piercing method is inaccurate, can only tentatively carry out anti-liquefying ability
Judgement；Cone Penetration Test has higher requirement to the specification of measuring apparatus and support vessel；After original-pack sample being obtained by probing
The physical and mechanical parameter test in laboratory, and the method calculated according to existing liquefaction judge formula or numerical model are carried out,
Although there is higher accuracy, operating process is relatively complicated, complicated, and this method is easy to change deposit original
Physics, the mechanical state of position, and then test result is impacted.Therefore, existing method of discrimination still has more expense
Thing, it is laborious, of high cost the problems such as.
Such as Chinese patent（Application publication number CN105953971A）Disclose a kind of " beach shallow sea based on thixotropy principle
Pore water pressure in-situ observation system ", including liquefaction vibrating device, pore water pressure observation system and for laying and recycling
Support vessel.The vibrating device that liquefies includes vibrating bin, piston vibration system, casing, anti-settling disk and permeable flexible material；
Pore water pressure observation system includes that pore water pressure observation feeler lever is internally provided with pore water pressure acquisition cabin, pore water pressure passes
Sensor, top are equipped with floating body and connecting hole compress cable laying；It will liquefaction vibrating device and pore water pressure by support vessel when laying
Observation system is to sea bed face, and by liquefying, vibrating device makes seabed soil that local liquefaction occur, and completes pore water pressure observation system
System is laid；By the vibration frequency of the control system adjusting control liquefaction vibrating device on support vessel, it can be achieved that different sea beds
Under the conditions of pore water pressure observation system lay.The observation system surveys pore water pressure using thixotropy principle
Amount, is not directed to the measurement problem of bottom sediment.
Utility model content
The purpose of this utility model is to provide a kind of Offshore anti-liquefying ability in-situ measurement device, for solving
Problem certainly of the existing technology.
The utility model is achieved by the following technical programs：
Offshore anti-liquefying ability in-situ measurement device acts on injection sea-bottom deposit including the use of freely falling body
Feeler lever, counterweight cabin in object and data module, the counterweight cabin are mounted on feeler lever upper end, are used to place clump weight in counterweight cabin,
Fitting depth measuring part on the outside of the feeler lever is equipped with unidirectional mobile mechanism between depth survey component and feeler lever, described unidirectional
Mobile mechanism's depth survey component in feeler lever injection deposit can move up and can when feeler lever takes out from deposit
Velocity measurement apparatus is maintained to the rearmost position moved up, to obtain the depth of feeler lever injection deposit；The data module
Including acceleration analysis element and power supply module, power supply module is acceleration analysis power elements.
Offshore anti-liquefying ability in-situ measurement device as described above, the depth survey component include circle
Cyclic annular stressed plate, stressed plate are set on feeler lever, and sinker is symmetrically hung on stressed plate, and sinker bottom surface is flushed with feeler lever lower end.
Offshore anti-liquefying ability in-situ measurement device as described above, the unidirectional mobile mechanism include rolling
Wheel, idler wheel are connect by first rotating shaft with depth survey component, and coaxial ratchet is installed on idler wheel, described unidirectional
Outer peripheral gear is equipped with limited post and gag lever post, one end of gag lever post and the teeth portion movable contact of ratchet, gag lever post it is another
End is hinged with idler wheel by the second shaft, and gag lever post is located at the downside of the second shaft.
Offshore anti-liquefying ability in-situ measurement device as described above, the ratchet are located at idler wheel
Inside, the second roller end stretch out idler wheel and install resetting apparatus, drive gag lever post to be detached with ratchet by resetting apparatus
To realize depth survey member reset.
Offshore anti-liquefying ability in-situ measurement device as described above, the unidirectional mobile mechanism includes bullet
Spring and ball, are provided with radial hole on depth survey component, and installation ball and spring, ball are fastened on the interior of radial hole in radial hole
Port and with feeler lever sliding contact, the spring provides inside extruding force for ball.
Offshore anti-liquefying ability in-situ measurement device as described above, the unidirectional mobile mechanism symmetrically set
It is equipped with more sets.
Offshore anti-liquefying ability in-situ measurement device as described above, the feeler lever upper end passes through screw thread knot
Structure is connect with counterweight cabin, and lower end is popped one's head in equipped with injection.
Offshore anti-liquefying ability in-situ measurement device as described above, the counterweight cabin are oval storehouse
Body, counterweight cabin outside are equipped with empennage, and the empennage is polylith deflector, and polylith deflector is symmetrically vertically fixed on counterweight cabin.
Offshore anti-liquefying ability in-situ measurement device as described above, the data module are located at counterweight cabin
Interior, acceleration analysis element is miniature plug and play type direct current accelerometer, is added for obtain the feeler lever dropping process
Speed data is recorded and is stored；The power supply module is made of polylith battery and power switch.
Offshore anti-liquefying ability in-situ measurement device as described above, the injection probe are that taper angle exists
Conical head between 30 ~ 150 ° or sphere.
The utility model has the advantages that：
1, the in-situ measurement device of the utility model has many advantages, such as that making is simple and convenient to operate, is repeatable high, can
To greatly save the precision of the cost needed for measuring, the use for reducing manpower and materials, raising measurement result.
2, existing bottom sediment depth of penetration measurement method needs drill sampling, transport, sample preparation, indoor geotechnique's examination
It tests and numerical computations, each step has an error, and the utility model can directly carry out that scene is in situ to be surveyed from sea
Amount, eliminates a variety of human errors.
3, the utility model combines the advantages of in situ measurements such as SPT, CPT, it can be achieved that the anti-liquid of Offshore
The efficient measurement and evaluation of change ability provide accurate measurement data and research base for the prevention and improvement of coastal geology disaster
Plinth.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is the structural schematic diagram of the utility model in-situ measurement device；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the A-A of Fig. 1 to enlarged cross-sectional view；
Fig. 4 is the structural schematic diagram of another velocity measurement apparatus；
Fig. 5 is the structural schematic diagram of unidirectional mobile mechanism described in Fig. 4；
The structural schematic diagram of counterweight cabin described in Fig. 1 in Fig. 6；
Fig. 7 is the B-B direction sectional view of Fig. 6；
Fig. 8 is the usage state diagram of the utility model in-situ measurement device（After lifting）；
Fig. 9 is the usage state diagram of the utility model in-situ measurement device（After injection）.
Reference numeral：1- feeler levers, 2- counterweight cabins, 21- clump weights, 3- empennages, 4- depth survey components, 41- sinkers, 5- are mono-
To mobile mechanism, 51- radial holes, 52- balls, 53- springs, 54- idler wheels, 55- first rotating shafts, 56- ratchets, 57- limits
Column, 58- gag lever posts, the second shafts of 59-, 6- injection probe, 7- acceleration analysis elements, 8- data memory modules, 9- power supply moulds
Block, 10- support vessels, 11- lifting appliances, 12- hawsers, 13- controllably break off relations.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment that those of ordinary skill in the art are obtained without creative efforts belong to
The range of the utility model protection.
As shown in Fig. 1-Fig. 7, a kind of Offshore anti-liquefying ability in-situ measurement device of the present embodiment, including visit
Bar 1, counterweight cabin 2, empennage 3.1 upper end of feeler lever is provided with external screw thread, and 2 lower part of counterweight cabin is equipped with internal thread hole, by external screw thread and
Inner bolt hole respective outer side edges can achieve a fixed connection feeler lever 1 and counterweight cabin 2, in order to avoid in use, deposit and seawater etc.
Impurity enters in helicitic texture, and gasket or fluid sealant is arranged to ensure sealing performance in connecting portion.
As shown in Figure 1, the feeler lever 1 of the present embodiment is cylinder made of solid high-strength stainless steel material, it is close to meet
The injection demand of real bottom sediment；Injection probe 6 is arranged in 1 lower end of feeler lever, when injection probe 6 is using conical head, for harder
Deposit can improve impact force, when using sphere, can increase penetration resistance for softer deposit, avoid to softer
Deposit injection position generate adverse effect, ensure measure accuracy.In addition, according to different Distribution of Surface Sediment types, visit
The use of multiple types dimensional fits can be arranged in bar 1；Injection probe 6 is equipped with the various structures such as taper, spherical shape, different thick to coordinate
Thin feeler lever 1 carries out injection measurement to different types of deposit.
The external fitting depth measuring part 4 of feeler lever 1 is equipped with unidirectional mobile mechanism between depth survey component 4 and feeler lever 1
5, make depth survey component 4 in injection by unidirectional mobile mechanism 5,6 lower parts that can pop one's head in from injection are unidirectional to 2 direction of counterweight cabin
Mobile, i.e. the depth survey component 4 during injection deposit of feeler lever 1 is moved up along feeler lever lower part, then in feeler lever 1 from heavy
In product object when hanging out feeler lever 1, unidirectional mobile mechanism 5 can make depth measurement element 1 rest on injection to stop and stablize most
Position afterwards, and then can be obtained the depth of penetration of deposit by reading the scale of feeler lever 1.After use, by depth survey component 4
It resets in 6 sides of injection probe of feeler lever 1, can be used for next measurement.
As shown in Figure 3-Figure 5, depth survey component 4 is made of stressed plate, sinker 41 and suspension strop.Stressed plate can be used
Lightweight circular ring type plastic-steel, since its area is significantly larger than the sectional area of feeler lever 1, when touching bottom sediment, i.e. stressed plate touches
Behind bottom, is stopped by deposit and generate upward thrust, so as to drive depth survey component 4 to move up.Due to injection
When deposit, the overall resistance increase of gravity piston sampler is influenced by horizontal maximum cross-section, therefore, is ensureing that stressed plate is straight
In the case that diameter is less than counterweight cabin 2, the big as far as possible of stressed plate setting is may insure in this way in soft bottom sediment
Enough resistances can be also provided when use.
Sinker 41 is the lead matter clump weight being suspended below stressed plate, when preventing feeler lever 1 from falling in the seawater, stressed plate
It is moved up by seawater drag force, overcomes due to moving up in advance, lead to actual deposit depth of penetration measuring error；Sinker
41 bottom out after lose pulling force to stressed plate 61, hereafter stressed plate can be moved up freely.Sinker 41 is set after it is bottomed out, also
The support that bigger can be formed to stressed plate 61, to enhance upward thrust.41 bottom of sinker should keep water with 1 lower end of feeler lever
It is flat, in the case where being provided with injection probe 6, it is horizontal to extend to the 6 lower end holding of injection probe.
It, may only for limiting depth survey component 4 in nature with the unidirectional mobile mechanism 5 of stressed plate cooperation
It moves, is unable to move down, moved up it is thus possible to ensure that stressed plate is opposite on feeler lever 1, obtain the speed of injection deposit
Degree.
As shown in Figure 4, Figure 5, the first unidirectional mobile mechanism, using idler wheel 54, ratchet 56, limited post 57, limit
Bar 58 is constituted, and idler wheel 54, ratchet 56 are relatively fixed, and are connect with stressed plate by first rotating shaft 55.Ratchet 56 with
Idler wheel 54 rotates together, and upwards for when rotating clockwise, ratchet 56 pushes gag lever post 58 open, idler wheel 54 is operating normally；To
It is lower for when rotating counterclockwise, by the collective effect of limited post 57 and gag lever post 58, ratchet 56 can not rotate, therefore, can be with
Realize that idler wheel 54 can not slide downward in its natural state.
In order to facilitate operation and maintenance, deposit is avoided to enter inside unidirectional mobile mechanism 5, can by ratchet 56,
Limited post 57, gag lever post 58 are arranged inside idler wheel, or are fixed on the side of idler wheel, and be sealed by sealing cover body.
As shown in figure 3, second of unidirectional mobile mechanism 5, may be used 53 structure of ball 52 and spring, in stressed plate inner ring
On open up radial hole 51, ball is fastened on the inner port of radial hole 51, and with 1 periphery sliding contact of feeler lever, spring 53 is ball
52 provide inside extruding force.I.e. stressed plate in its natural state, under the stationary state in seawater and after injection, utilize
The extruding force that spring applies feeler lever 1 by ball, stressed plate and feeler lever 1 not will produce relative movement；And in injection deposit
When, due to by the upward resistance of deposit and friction force effect, making stressed plate that there is the thrust of enough upward slidings, and can
Rest on injection it is static when feeler lever 1 and deposit plan-position.Therefore, the size of stressed plate is that depth survey component is accurate
The key factor really moved, it is preferred to use 2-4 times of 1 section of feeler lever.
The unidirectional mobile mechanism of above two is arranged 4 sets or more between stressed plate and feeler lever 1, depth when ensureing injection
The stability that measuring part 6 coordinates with feeler lever 1.The reset of stressed plate 61 after a measurement for convenience simultaneously, in the second shaft or
Reset components should be installed on spring.
As shown in Figure 1, depth survey component 4 is stressed plate in the present embodiment, stressed plate is set on feeler lever 1, stressed plate
The height of outwardly convex, the i.e. annular width of stressed plate are preferably less than the minor axis length of counterweight cabin 2, increase when to avoid injection
Resistance leads to the inaccuracy measured.
In addition, depth survey component 4 may be set to be conically shaped, conically shaped is set on feeler lever 1, unidirectional mobile mechanism
Coordinate for pawl and sliding block, pawl is vertically located at 1 periphery of feeler lever, is bevel edge on the downside of pawl, upside is horizontal sides, and sliding block is in pawl
On radial support tube can be equipped in conically shaped with upward sliding, sliding block is arranged by spring in support tube, that is, utilizes pawl
Bevel edge, sliding block, by under the drive of deposit resistance and frictional force, can from the bottom up move in conically shaped along feeler lever 1, and
Since the horizontal sides of pawl are arranged, sliding block can be fastened in horizontal sides, when preventing feeler lever 1 from being taken out from deposit, depth survey
The whereabouts of component 4 leads to measurement error.
As shown in Figure 6, Figure 7, the counterweight cabin 2 of the present embodiment is stainless steel ellipse warehouse, if can be filled in counterweight cabin 2
Dry lead matter cylinder clump weight 21 selects the clump weight 21 of different number, to ensure according to different Distribution of Surface Sediment types
Depth of penetration control is preferred in reach 1 entire length of feeler lever 50% ~ 80%；In order to facilitate the consolidating in counterweight cabin 2 of clump weight 21
It is fixed, partition board or fixture are installed on 2 inner wall of counterweight cabin, meanwhile, clump weight 21 should ensure that its center of gravity is located in placement or fixed form
On the axis of feeler lever 1, to realize stability when injection；Data module, including acceleration analysis member is arranged in the top of counterweight cabin 2
Part 7, power supply module 9, to measure and record the acceleration information in penetration process, in order to ensure the security performance of data and deposit
Capacity is stored up, data memory module 8 can be increased, power supply mould 9 is made of polylith rechargeable battery and power switch.
As shown in Figure 1 and Figure 2, the present embodiment is provided with empennage 3 on counterweight cabin 2, and empennage 3 is to be fixed on counterweight cabin by 4
Stainless steel diversion board group on 2 at, empennage 3 in the seawater free-falling when feeler lever 1 can be made to keep posture straight down, prevent
Only run-off the straight ensures the validity of injection to the maximum extent.
As shown in Figure 8, Figure 9, this measuring device is carried out by the delivery of support vessel 10 to research point, and support vessel is equipped with lifting
Equipment 11 and the hawser 12 of connection 13 are hung to above research point by controllably breaking off relations and it are made to keep vertical, hawser with measure
Device is connected for recycling, and measuring apparatus is freely falling body shape body when hawser will have sufficient length to ensure release, is then passed through
Controllable release of breaking off relations withdraws measuring apparatus until in injection bottom sediment after stablizing, and obtains depth of penetration and accelerates the number of degrees
According to.
The technology contents of the not detailed description of the utility model are known technology.
Claims (10)
1. Offshore anti-liquefying ability in-situ measurement device acts on injection bottom sediment including the use of freely falling body
Interior feeler lever, counterweight cabin and data module, the counterweight cabin are mounted on feeler lever upper end, are used to place clump weight in counterweight cabin,
It is characterized in that, fitting depth measuring part on the outside of the feeler lever, unidirectional mobile mechanism is equipped between depth survey component and feeler lever,
Unidirectional mobile mechanism depth survey component in feeler lever injection deposit can be moved up and be taken from deposit in feeler lever
Velocity measurement apparatus can be maintained to the rearmost position moved up, to obtain the depth of feeler lever injection deposit when going out；It is described
Data module includes acceleration analysis element and power supply module, and power supply module is acceleration analysis power elements.
2. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Depth survey component includes circular stressed plate, and stressed plate is set on feeler lever, and sinker, sinker bottom are symmetrically hung on stressed plate
Face is flushed with feeler lever lower end.
3. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Unidirectional mobile mechanism includes idler wheel, and idler wheel is connect by first rotating shaft with depth survey component, is installed on idler wheel coaxial
Ratchet, the ratchet periphery is equipped with limited post and gag lever post, and the teeth portion of one end of gag lever post and ratchet is lived
Dynamic contact, the other end is hinged by the second shaft and idler wheel, and gag lever post is located at the downside of the second shaft.
4. Offshore anti-liquefying ability in-situ measurement device according to claim 3, which is characterized in that described
Ratchet is located at the inside of idler wheel, and the second roller end stretches out idler wheel and installs resetting apparatus, driven and limited by resetting apparatus
Position bar is detached with ratchet to realize depth survey member reset.
5. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Unidirectional mobile mechanism includes spring and ball, and radial hole is provided on depth survey component, ball and spring, rolling are installed in radial hole
Pearl be fastened on the inner port of radial hole and with feeler lever sliding contact, the spring provides inside extruding force for ball.
6. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Unidirectional mobile mechanism is symmetrically arranged with more sets.
7. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Feeler lever upper end is connect by helicitic texture with counterweight cabin, and lower end is popped one's head in equipped with injection.
8. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Counterweight cabin is oval warehouse, and empennage is equipped on the outside of counterweight cabin, and the empennage is polylith deflector, and polylith deflector is symmetrically vertical
It is fixed on counterweight cabin.
9. Offshore anti-liquefying ability in-situ measurement device according to claim 1, which is characterized in that described
Data module is located in counterweight cabin, and acceleration analysis element is miniature plug and play type direct current accelerometer, is used for the spy
Bar dropping process obtain records of acceleration and storage；The power supply module is made of polylith battery and power switch.
10. Offshore anti-liquefying ability in-situ measurement device according to claim 7, which is characterized in that institute
It is conical head or sphere of the taper angle between 30 ~ 150 ° to state injection probe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721749420.5U CN207662760U (en) | 2017-12-15 | 2017-12-15 | Offshore anti-liquefying ability in-situ measurement device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721749420.5U CN207662760U (en) | 2017-12-15 | 2017-12-15 | Offshore anti-liquefying ability in-situ measurement device |
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| CN207662760U true CN207662760U (en) | 2018-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306691B (en) * | 2018-09-11 | 2020-09-01 | 合肥工业大学 | Self-adjusting visual accurate power sounding device |
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2017
- 2017-12-15 CN CN201721749420.5U patent/CN207662760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306691B (en) * | 2018-09-11 | 2020-09-01 | 合肥工业大学 | Self-adjusting visual accurate power sounding device |
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