CN108051257A - Underwater mud back-silts object sampler and underwater sampling method - Google Patents
Underwater mud back-silts object sampler and underwater sampling method Download PDFInfo
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- CN108051257A CN108051257A CN201810137567.1A CN201810137567A CN108051257A CN 108051257 A CN108051257 A CN 108051257A CN 201810137567 A CN201810137567 A CN 201810137567A CN 108051257 A CN108051257 A CN 108051257A
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- sampler
- sampler barrel
- underwater
- counterweight
- silts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Sampling And Sample Adjustment (AREA)
Abstract
The present invention proposes that a kind of underwater mud back-silts object sampler and underwater sampling method, can realize underwater unattended, and small to the disturbance in region of back-silting, sampling efficiency is high, and risk is low.The underwater mud back-silts object sampler including sampling assemble and for the sampling assemble to be supported in water-bed supporting item；The sampling assemble includes vertically being arranged at sampler barrel on the supporting item, the piston that can be vertically slided in the sampler barrel and can relatively described sampler barrel fall to drive the counterweight of the piston upward sliding；The bottom of the sampler barrel is equipped with the sample tap with check valve, and the piston is slidingly sealed cooperation with sampler barrel inner wall；The counterweight is arranged at outside the sampler barrel, and is passed through connector and be connected with the top of the piston.
Description
Technical field
It back-silts object sampler and underwater the invention belongs to seabed bedding technical field of construction more particularly to a kind of underwater mud
Sampling method.
Background technology
In subsea construction, such as the deep water construction of immersed tube tunnel, it usually needs rubble bedding is first laid with, in rubble bedding
After laying, since silt content is more in waters, and bedding original mud face can draw there are certain thickness mud with the disturbance of current
Send out back-siltation.In order to ensure subsequent construction quality, it is necessary to check the ingredient for returning what amount and the object that back-silts of bedding, and then judgement is
It is no to disclosure satisfy that deep water construction requirement.
At present, back-silt for underwater mud the inspection of object, the mode of generally use diver's underwater sampling carries out.Such as：
Chinese patent CN104596803A discloses a kind of deep-water sludge sampler, and diver can be facilitated to be sampled the object that back-silts.
However, this deep-water sludge sampler still needs diver and is operated under water, during sampling to the disturbance in region of back-silting compared with
Greatly, moreover, sampling efficiency is low, risk is big.
Thus, when the object that back-silts to underwater mud is sampled, how to reduce the disturbance to region of back-silting, improve sampling effect
Rate, and sampling risk is reduced, it is a current technical problem for being badly in need of solving.
The content of the invention
The present invention for it is above-mentioned the technical issues of, propose that a kind of underwater mud back-silts object sampler and underwater sampling method,
It can realize underwater unattended, sampling efficiency height small to the disturbance in region of back-silting, risk is low.
In order to achieve the above object, the technical solution adopted by the present invention is：
Underwater mud back-silts object sampler, including sampling assemble and water-bed for the sampling assemble to be supported in
Supporting item；The sampling assemble includes the sampler barrel being vertically arranged on the supporting item, can be vertically in institute
State the piston that slides in sampler barrel and can relatively described sampler barrel fall to drive the counterweight of the piston upward sliding；
The bottom of the sampler barrel is equipped with the sample tap with check valve, and the piston is slidingly sealed cooperation with sampler barrel inner wall；It is described
Counterweight is arranged at outside the sampler barrel, and is passed through connector and be connected with the top of the piston.
Preferably, it is arranged with protective cover outside the sampler barrel.
Preferably, the counterweight is annular, and it is sheathed on outside the protective cover or sampler barrel.
Preferably, the outer wall of the protective cover or sampler barrel is equipped with to hold the tray of the counterweight, the support
Block can be stretched out or retracted compared with the outer wall of the protective cover or sampler barrel.
Preferably, the outer wall of the protective cover or sampler barrel is equipped with to limit the counterweight maximum height of drop
Limited block.
Preferably, the sampler barrel is made of glass material, the piston is made of rubber material.
Preferably, the connector is steel wire rope.
The present invention also provides it is a kind of using any of the above-described technical solution described in underwater mud back-silt the water of object sampler
Lower sampling method, includes the following steps：
The underwater mud is back-silted into object sampler sinking to the bottom in region of back-silting, takes the underwater mud object that back-silts
For the supports support of sample device in the bottom, sampler barrel is vertical with the bottom；The phase of the counterweight and sampler barrel is controlled during sinking
To position, to ensure that the piston in the sampler barrel is always positioned at initial position；
The counterweight is discharged, the counterweight is made to fall under self gravitation effect compared with the sampler barrel, and then
The piston upward sliding is driven to suck the underwater mud object that back-silts in the sampler barrel by air pressure；
It recycles the underwater mud to back-silt object sampler, completes sampling operation.
Preferably, underwater mud described in sinking back-silts during object sampler, the counterweight is held by the tray of stretching
The relative position for controlling the counterweight and sampler barrel is constant.
Preferably, by the way that the tray is controlled to retract to discharge the counterweight.
Compared with prior art, the advantages of the present invention are：
1st, underwater mud provided by the invention back-silts object sampler, and the counterweight for passing through setting drives piston in sampler barrel
It slides, automatic sampling is realized using draught head, underwater operation is carried out without diver, underwater unmanned sampling is realized, to returning
The disturbance in silt region is small, and sampling efficiency is high, and risk is low；
2nd, underwater mud provided by the invention back-silts object sampler, can be directed to and region is specified accurately to be sampled, sampling
Accuracy is high.
Description of the drawings
Fig. 1 is that underwater mud provided in an embodiment of the present invention back-silts the structure diagram of object sampler；
Fig. 2 is along the sectional view of line A-A in Fig. 1；
Fig. 3 is the sampling process schematic diagram of underwater sampling method provided in an embodiment of the present invention；
In above each figure：1st, supporting item；2nd, sampling assemble；21st, counterweight；22nd, piston；23rd, sampler barrel；231st, sample
Mouthful；3rd, check valve；4th, connector；5th, protective cover；6th, tray；7th, limited block；8th, the water surface；9th, it is water-bed；10th, back-silt region.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one
In the case of step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiment
In.
In the description of the present invention, it is necessary to explanation, the instructions such as term " interior ", " outer ", " top ", " bottom ", "front", "rear"
Orientation or position relationship be based on attached position relationship shown in FIG. 1, be for only for ease of the description present invention and simplify description, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.
As shown in Figure 1, back-silt object sampler the present embodiments relate to a kind of underwater mud, including sampling assemble 2 and
For sampling assemble 2 to be supported in water-bed supporting item 1；Sampling assemble 2 includes vertically being arranged at taking on supporting item 1
Sample cylinder 23 can vertically can fall in the interior piston 22 slided of sampler barrel 23 and with respect to sampler barrel 23 with band piston
The counterweight 21 of 22 upward slidings；The bottom of sampler barrel 23 is equipped with the sample tap 231 with check valve 3, piston 22 and sampler barrel
23 inner walls are slidingly sealed cooperation, so that sampler barrel 23 is only capable of being communicated with the outside by sample tap 231；Counterweight 21, which is arranged at, to be taken
Outside sample cylinder 23, and pass through connector 4 and be connected with the top of piston 22.
Above-mentioned underwater mud back-silts in object sampler, as shown in Figure 1, supporting item 1 is located at 23 bottom of sampler barrel, with ensure by
Sampling assemble 2 is smoothly supported in the bottom.It should be noted that supporting item 1 can be supporting rack or more supporting legs, such as Fig. 2 institutes
Show, supporting item 1 is specially supporting rack in the present embodiment.It is understood that the structure of supporting item 1 is not limited to above-mentioned enumerate
Supporting rack or supporting leg, other rational supporting items 1 can also be used in those skilled in the art, make as long as can play and stablize support
With.
Further, during above-mentioned underwater mud back-silts object sampler, sampling assemble 2 is for object progress of back-silting to underwater mud
Sampling.In use, by discharging counterweight 21 it is made to fall under self gravitation effect, and then with piston 22 along sampler barrel 23
Upward sliding makes sampler barrel 23 is inside and outside to generate draught head, and the underwater mud object that back-silts is inhaled from the sample tap 231 with check valve 3
Enter in sampler barrel 23, since sample tap 231 is provided with check valve 3, the object that back-silts that can ensure to suck in sampler barrel 23 will not be from
Sample tap 231 flows out.It should be noted that glass material making can be used in sampler barrel 23, rubber material system can be used in piston 22
Make, to ensure the leakproofness of sampler barrel 23.In addition, as a preferred embodiment, as shown in Figure 1, connector 4 is steel wire rope, using steel
Cord can realize the flexible connection of counterweight 21 and piston 22, be more advantageous to the gravity using counterweight 21 as connector 4
Zone of action piston 22 is slided.
In order to avoid sampler barrel 23 is destroyed due to external water pressure acts on, as shown in Figure 1, being arranged with protection outside sampler barrel 23
Cover 5.When the underwater mud back-silts object sampler sinking to the bottom, the protective cover 5 of setting can bear external water pressure, play guarantor
Protect the effect of sampler barrel 23.
Further, as shown in Fig. 2, counterweight 21 is annular, and it is sheathed on outside protective cover 5.Using matching somebody with somebody for this annular
Heavy mail 21 is more advantageous to ensureing that underwater mud back-silts balance of the object sampler in sampling process.It is understood that it ought not set
When putting protective cover 5, annular counterweight 21 can be sheathed on outside sampler barrel 23.
Counterweight 21 falls during sampler sinking compared with sampler barrel 23 in order to prevent, causes wrong sampling, makees
To be a kind of preferred, as shown in Figure 1, the outer wall of protective cover 5 is equipped with to hold the tray 6 of counterweight 21, tray 6 can be compared with guarantor
The outer wall of shield 5 is stretched out or retracted.When the underwater mud of sinking back-silts object sampler, tray 6 is stretched out to hold counterweight 21,
During sampling tray 6 is controlled to retract, after counterweight 21 loses the support of tray 6, fallen under its own gravity.It needs to illustrate
, driving and control mode when stretching for tray 6 are not specifically limited in the present embodiment, as long as it can control
And the mode for driving tray 6 flexible is applicable, for example, telescopic rod driving can be used in the flexible of tray 6, control can be used in control
Device processed is controlled.It is understood that when being not provided with protective cover 5, tray 6 may be disposed at the outer wall of sampler barrel 23, and can
It stretches out or retracts compared with the outer wall of sampler barrel 23.In addition it is also necessary to which explanation, can also be not provided with tray 6, sampled in sinking
During device, counterweight 21 is caught hold of by lifting rope etc., to avoid its band 22 upward sliding of piston, causes wrong sampling.
Further, as shown in Figure 1, the outer wall of protective cover 5 is equipped with to limit the limit of the maximum height of drop of counterweight 21
Position block 7.It is understood that when being not provided with protective cover 5, limited block 7 may be disposed at the outer wall of sampler barrel 23.
As shown in figure 3, the embodiment of the present invention additionally provides a kind of underwater mud described in using any of the above-described embodiment
It back-silts the underwater sampling method of object sampler, includes the following steps：
S1：Underwater mud is back-silted into object sampler sinking to the bottom 9 in region 10 of back-silting, underwater mud is made to back-silt object sampling
The supporting item 1 of device is supported in the bottom 9, and sampler barrel 23 is vertical with the bottom 9；Counterweight 21 and sampler barrel 23 are controlled during sinking
Relative position is always positioned at initial position with the piston 22 ensured in sampler barrel 23.
In this step, it is necessary to which explanation, can carry out sinking operation by the lowering equipment being arranged on ship.Such as figure
Shown in 3, as a preferred embodiment, in the present embodiment, the underwater mud of sinking back-silt object sampler when, pass through 6 support of tray of stretching
Firmly counterweight 21, so as to control counterweight 21 and the relative position of sampler barrel 23 constant.It is hung in addition, lifting rope can also be used during sinking
Firmly counterweight 21 unclasp the relative position of the speed control counterweight 21 and sampler barrel 23 of lifting rope by control, so as to ensure to take
Piston 22 in sample cylinder 23 is always positioned at initial position.
S2：Counterweight 21 is discharged, counterweight 21 is made to fall under self gravitation effect compared with sampler barrel 23, and then is driven
22 upward sliding of piston with by air pressure by underwater mud back-silt object suck sampler barrel 23 in.
In this step, as shown in figure 3, retracting to discharge counterweight 21 specifically by control tray 6.In addition, using
When lifting rope hangs counterweight 21, counterweight 21 can be discharged by unclasping lifting rope.
S3：Mud back-silts object sampler under recycle-water, completes sampling operation.
Underwater mud provided by the invention back-silts object sampler, and the counterweight 21 for passing through setting drives work in sampler barrel 23
Plug 22 slides, and automatic sampling is realized using draught head, and underwater operation is carried out without diver, realizes underwater unmanned sampling,
Small to the disturbance in region of back-silting, sampling efficiency is high, and risk is low.The object sampler moreover, underwater mud provided by the invention back-silts, energy
Enough accurately to be sampled for specified region, sampling accuracy is high.
Claims (10)
- The object sampler 1. underwater mud back-silts, it is characterised in that：Including sampling assemble (2) and for by the sampling assemble (2) it is supported in water-bed supporting item (1)；The sampling assemble (2) includes the sampler barrel (23) being vertically arranged on the supporting item (1), can be along vertical side To the piston (22) slided in the sampler barrel (23) and can relatively described sampler barrel (23) fall to drive the piston (22) counterweight (21) of upward sliding；The bottom of the sampler barrel (23) is equipped with the sample tap (231) with check valve (3), the piston (22) and sampler barrel (23) inner wall is slidingly sealed cooperation；It is external that the counterweight (21) is arranged at the sampler barrel (23), and pass through connector (4) with The top of the piston (22) is connected.
- The object sampler 2. underwater mud according to claim 1 back-silts, it is characterised in that：It is arranged outside the sampler barrel (23) There is protective cover (5).
- The object sampler 3. underwater mud according to claim 1 or 2 back-silts, it is characterised in that：The counterweight (21) is Annular, and it is sheathed on the protective cover (5) or sampler barrel (23) outside.
- The object sampler 4. underwater mud according to claim 3 back-silts, it is characterised in that：The protective cover (5) or sampling The outer wall of cylinder (23) is equipped with to hold the tray (6) of the counterweight (21), and the tray (6) can be compared with the protective cover (5) or the outer wall of sampler barrel (23) is stretched out or retracted.
- The object sampler 5. underwater mud according to claim 3 back-silts, it is characterised in that：The protective cover (5) or sampling The outer wall of cylinder (23) is equipped with to limit the limited block (7) of the maximum height of drop of the counterweight (21).
- The object sampler 6. underwater mud according to claim 1 back-silts, it is characterised in that：The sampler barrel (23) uses glass Glass material makes, and the piston (22) is made of rubber material.
- The object sampler 7. underwater mud according to claim 1 back-silts, it is characterised in that：The connector (4) is steel wire Rope.
- 8. the underwater sampling method for the object sampler that back-silted using the underwater mud of claim 1-7 any one of them, feature are existed In including the following steps：The underwater mud is back-silted into object sampler sinking to the bottom (9) of region of back-silting (10), the underwater mud is made to back-silt The supporting item (1) of object sampler is supported in water-bed (9), and sampler barrel (23) is vertical with water-bed (9)；Match somebody with somebody described in being controlled during sinking The relative position of heavy mail (21) and sampler barrel (23), initial bit is always positioned at the piston (22) ensured in the sampler barrel (23) It puts；The counterweight (21) is discharged, makes the counterweight (21) under self gravitation effect compared under the sampler barrel (23) Fall, and then drive piston (22) upward sliding so that the underwater mud object that back-silts is sucked the sampler barrel (23) by air pressure In；It recycles the underwater mud to back-silt object sampler, completes sampling operation.
- 9. underwater sampling method according to claim 8, it is characterised in that：Underwater mud described in sinking back-silts object sampler When, the counterweight (21) is held by the tray (6) of stretching and controls the counterweight (21) and the opposite position of sampler barrel (23) It puts constant.
- 10. underwater sampling method according to claim 8, it is characterised in that：By the way that the tray (6) is controlled to retract to release Put the counterweight (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137567.1A CN108051257A (en) | 2018-02-10 | 2018-02-10 | Underwater mud back-silts object sampler and underwater sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810137567.1A CN108051257A (en) | 2018-02-10 | 2018-02-10 | Underwater mud back-silts object sampler and underwater sampling method |
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| Publication Number | Publication Date |
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| CN108051257A true CN108051257A (en) | 2018-05-18 |
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|---|---|---|---|
| CN201810137567.1A Pending CN108051257A (en) | 2018-02-10 | 2018-02-10 | Underwater mud back-silts object sampler and underwater sampling method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760400A (en) * | 2018-07-24 | 2018-11-06 | 中国地质科学院 | A kind of underwater sediment sampler |
| CN112051187A (en) * | 2020-08-26 | 2020-12-08 | 中交天津港湾工程研究院有限公司 | In-situ test and micro-disturbance sampling method for volume weight of silt returning substances at different depths in seabed foundation trench |
| CN112326310A (en) * | 2020-10-26 | 2021-02-05 | 华北水利水电大学 | Sludge sample collecting device for ecological monitoring and collecting method thereof |
| CN112729895A (en) * | 2020-12-18 | 2021-04-30 | 中国水产科学研究院珠江水产研究所 | Sampling device for researching biological community attached to river ecosystem |
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| TW201326623A (en) * | 2011-12-23 | 2013-07-01 | ji-song Cai | Mechanical automatic water supply valve |
| CN104596803A (en) * | 2015-02-16 | 2015-05-06 | 中交一航局第二工程有限公司 | Deep-water sludge sampler |
| CN204851561U (en) * | 2015-07-20 | 2015-12-09 | 李云武 | Small -bore wind -force hydraulic power picotan of deep well |
| CN207832516U (en) * | 2018-02-10 | 2018-09-07 | 中交一航局第二工程有限公司 | Underwater mud back-silts object sampler |
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| JPH10310345A (en) * | 1997-05-14 | 1998-11-24 | Oil Drive Kogyo Kk | Hydraulic elevator |
| CN1616944A (en) * | 2004-12-01 | 2005-05-18 | 浙江大学 | Fidelity sampling integrated deep sea sediment sampler |
| CN101634614A (en) * | 2009-08-18 | 2010-01-27 | 浙江大学 | Gravity piston type long cylindrical sediment sampler penetrating through hydrate BSR interface |
| CN102434197A (en) * | 2011-12-19 | 2012-05-02 | 中国矿业大学 | Automatic pressure relief device of refuge chamber or rescue capsule |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760400A (en) * | 2018-07-24 | 2018-11-06 | 中国地质科学院 | A kind of underwater sediment sampler |
| CN108760400B (en) * | 2018-07-24 | 2021-02-05 | 中国地质科学院 | Underwater sediment sampler |
| CN112051187A (en) * | 2020-08-26 | 2020-12-08 | 中交天津港湾工程研究院有限公司 | In-situ test and micro-disturbance sampling method for volume weight of silt returning substances at different depths in seabed foundation trench |
| CN112051187B (en) * | 2020-08-26 | 2023-10-27 | 中交天津港湾工程研究院有限公司 | In-situ test and perturbation sampling method for volume weight of back sludge at different depths in submarine foundation trench |
| CN112326310A (en) * | 2020-10-26 | 2021-02-05 | 华北水利水电大学 | Sludge sample collecting device for ecological monitoring and collecting method thereof |
| CN112326310B (en) * | 2020-10-26 | 2023-11-21 | 华北水利水电大学 | Silt sample collection device for ecological monitoring and collection method thereof |
| CN112729895A (en) * | 2020-12-18 | 2021-04-30 | 中国水产科学研究院珠江水产研究所 | Sampling device for researching biological community attached to river ecosystem |
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