CN208748638U - Underwater strong rammer subtraction unit - Google Patents
Underwater strong rammer subtraction unit Download PDFInfo
- Publication number
- CN208748638U CN208748638U CN201821157686.5U CN201821157686U CN208748638U CN 208748638 U CN208748638 U CN 208748638U CN 201821157686 U CN201821157686 U CN 201821157686U CN 208748638 U CN208748638 U CN 208748638U
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- Prior art keywords
- strong rammer
- tamping
- plate
- hammer
- lower bolster
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model provides a kind of underwater strong rammer subtraction unit, underwater strong rammer device includes strong rammer ship and column hammer, strong rammer ship includes hull, gantry crane system and hydraulic tamping system, gantry crane system includes track and the gantry crane for being used to lift pile monkey to move on the track, hydraulic tamping system includes rack, oil cylinder, is dropped hammer and tamping plate, and oil cylinder promotion, which is dropped hammer, rams tamping plate；Column hammer includes hollow steel tubular pole and the lower bolster and upper padding plate for being fixed on hollow steel tubular pole bottom and top, upper padding plate and lower bolster are equipped with multiple ventholes through plate body, lower bolster is located at the water surface or less and contacts with sea bed or with riverbed, and upper padding plate is located at the water surface or more and contacts with tamping plate.The underwater strong rammer device of the utility model is used as force transmitting member by the column hammer for being erected in sea bed and exposing the surface, it is hydraulic ram equipment act on the water surface column hammer, not by the resistance of water when ramming, accurate placement, resistance be small, energy consumption less, the time it is fast, greatly improve the efficiency.
Description
Technical field
The utility model belongs to geotechnical engineering field, and in particular to a kind of underwater loosening sand basement process equipment and side
Method.
Background technique
Currently, with offshore engineering, such as harbour, breakwater engineering are increasing, reinforce seabed and underwater loose soil bed
Important project is had become, currently used underwater processing method is commonly displacement method, and displacement method is needed original place
A certain range of loose or weak soil below face is excavated, and good earth material such as block stone etc. is then backfilled.Displacement method needs big
The high-quality backfill material of amount, and whole excavation and stemming operation amount are very huge.Underwater Pounding Method technique common at present
Are as follows: special streamlined palisade hammer ram is utilized, falls and is reinforced from sea.Although construction is simple in this way, the efficiency rammed
Lower, hammer ram is whether fallen or is promoted all by resistance to water-flow, may be shifted, be reinforced by water currents when especially falling
Position precision is not high.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of underwater strong rammer subtraction unit.
The another object of the utility model is to provide a kind of underwater forced ramming construction method.
In order to realize the first purpose, the utility model uses a kind of following technical scheme: underwater strong rammer subtraction unit, packet
The column hammer for including strong rammer ship and being erected in sea bed and exposing the surface, the strong rammer ship includes hull, the gantry crane system being set on hull
System and hydraulic tamping system, gantry crane system include extend to the track of ship front and move on the track for lifting stake
The gantry crane of hammer, hydraulic tamping system includes the rack being placed on hull, the oil cylinder being fixed in rack, is dropped hammer and tamping plate, oil
Cylinder promotion, which is dropped hammer, rams tamping plate；The column hammer includes hollow steel tubular pole and the lower bolster for being fixed on hollow steel tubular pole bottom and top
And upper padding plate, upper padding plate and lower bolster are equipped with multiple ventholes through plate body, lower bolster be located at the water surface or less and sea bed or with
Riverbed contact, upper padding plate are located at the water surface or more and contact with tamping plate.
Some or all of upper padding plate or lower bolster venthole are connected to steel-pipe pile inner cavity.
Strong rammer ship is equipped with the buckle that limitation pile monkey moves horizontally.
The another object of the utility model is achieved through the following technical solutions: a kind of using as above any described underwater strong
Ram the construction method of subtraction unit, comprising the following steps:
(1), block stone bed course is laid in sea bed face；
(2), place elevation is measured, and tamping point is set；
(3), strong rammer ship is in place, column hammer is placed in tamping point position using gantry crane, and lockked with buckle；
(4), measurement rams front pillar and hammers cope level into shape；
(5), it is quickly rammed using hydraulic tamping system, oil cylinder promotion, which is dropped hammer, to be rammed tamping plate and indirectly-acting and hammer into shape in column
Upper padding plate keeps rammer rear pillar hammer cope level consistent with design altitude；
(6), it repeats the above steps, completes ramming for all tamping points.
The underwater strong rammer device of the utility model is used as force transmitting member by the column hammer for being erected in sea bed and exposing the surface,
Hydraulic equipment of ramming acts on column hammer on the water surface, not by the resistance of water when ramming, accurate placement, resistance be small, energy consumption less, when
Between it is fast, greatly improved the efficiency by the method, the forced ramming reinforcing that underwater sand foundation can be effectively performed is closely knit.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the general arrangement of underwater strong rammer subtraction unit
Fig. 2 is the schematic diagram of column hammer.
Fig. 3 is the hydraulic internal structural map for ramming equipment
1. gantry crane in figure, 2. power and operating room, 3. it is hydraulic ram equipment, 4. columns hammer, 5. buckles, 6. oil cylinders, 7. racks,
8. it drops hammer, 9. tamping plates, 10. upper padding plates, 11. hanging rings, 12. steel-pipe piles, 13. lower bolsters.
Specific embodiment
As shown in Figure 1, it includes strong rammer ship and column hammer 4, the strong rammer ship includes hull, sets a kind of underwater strong rammer subtraction unit
The gantry crane system and hydraulic tamping system 3 being placed on hull, gantry crane system include the track and traveling for extending to ship front
The gantry crane 1 for being used to lift pile monkey in orbit.As shown in figure 3, hydraulic tamping system 3 include be placed on hull rack 7,
The oil cylinder 6 that is fixed in rack, drop hammer 8 and tamping plate 9, and the promotion of oil cylinder 6, which is dropped hammer, 8 rams tamping plate 9.Strong rammer ship is equipped with limitation pile monkey
The buckle 5 moved horizontally.Column hammer 4 includes hollow steel tubular pole and is fixed on the lower bolster 13 of hollow steel tubular pole bottom and top and upper
Backing plate 10, upper padding plate and lower bolster are equipped with multiple ventholes through plate body, and partly or entirely venthole and steel-pipe pile inner cavity
Connection, in this way, since steel-pipe pile sinks, intraluminal fluid is caused to increase deeply, the gas being forced out in pipe can lead to during ramming
Cross venthole discharge.Column hammer stands on sea bed surface, and lower bolster is located at the water surface or less and contacts with sea bed, and the top of column hammer is then exposed
The water surface, upper padding plate are contacted with tamping plate.When tamping plate is by tamping force, receive hammer force between upper padding plate, so that column hammer be made to sink.
The construction method of the utility model the following steps are included:
(1), the stone bed course that block is no less than 20cm thickness is laid in sea bed face；
(2), place elevation is measured, and tamping point is set；
(3), strong rammer ship is in place, column hammer 4 is hoisted to tamping point position using gantry crane 1, and lockked with buckle 5, makes column hammer can
It cannot all around be translated with upper and lower vertical lifting；
(4), measurement rams front pillar and hammers cope level into shape；
(5), it operates the hydraulic tamping plate 9 for ramming equipment 3 in power and operating room 2 to be placed on the upper padding plate 10 of column hammer 4, then
It operates hydraulic tamping system quickly to be rammed, specially oil cylinder 6 is to 8 application hydraulic couplings of dropping hammer, and drop hammer 8 impact tamping plates 9, tamping plate
9 act on active force the upper padding plate 10 of column hammer 4, and active force is transferred to lower bolster 13 by steel-pipe pile 12, and lower bolster 13 will act on
Power is applied to ground.Keep rammer rear pillar hammer cope level consistent with design altitude；
(6), it repeats the above steps, completes ramming for all tamping points.
Claims (3)
1. a kind of underwater strong rammer subtraction unit, it is characterised in that: hammered into shape including strong rammer ship with the column for being erected in sea bed and exposing the surface, institute
Stating strong rammer ship includes hull, the gantry crane system being set on hull and hydraulic tamping system, and gantry crane system includes extending to ship
The track of front and the gantry crane for being used to lift pile monkey to move on the track, hydraulic tamping system includes being placed on hull
Rack, the oil cylinder being fixed in rack drop hammer and tamping plate, and oil cylinder promotion, which is dropped hammer, rams tamping plate；The column hammer includes hollow steel pipe
Stake and the lower bolster and upper padding plate for being fixed on hollow steel tubular pole bottom and top, upper padding plate and lower bolster are equipped with multiple through plate body
Venthole, lower bolster is located at the water surface or less and contacts with sea bed or with riverbed, and upper padding plate is located at the water surface or more and contacts with tamping plate.
2. underwater strong rammer subtraction unit according to claim 1, it is characterised in that: some or all of upper padding plate or lower bolster
Venthole is connected to steel-pipe pile inner cavity.
3. underwater strong rammer subtraction unit according to claim 1, it is characterised in that: strong rammer ship is equipped with limitation pile monkey level and moves
Dynamic buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157686.5U CN208748638U (en) | 2018-07-18 | 2018-07-18 | Underwater strong rammer subtraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157686.5U CN208748638U (en) | 2018-07-18 | 2018-07-18 | Underwater strong rammer subtraction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208748638U true CN208748638U (en) | 2019-04-16 |
Family
ID=66056740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821157686.5U Active CN208748638U (en) | 2018-07-18 | 2018-07-18 | Underwater strong rammer subtraction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208748638U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824414A (en) * | 2018-07-18 | 2018-11-16 | 中交四航工程研究院有限公司 | Underwater strong rammer subtraction unit and its construction method |
-
2018
- 2018-07-18 CN CN201821157686.5U patent/CN208748638U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108824414A (en) * | 2018-07-18 | 2018-11-16 | 中交四航工程研究院有限公司 | Underwater strong rammer subtraction unit and its construction method |
| CN108824414B (en) * | 2018-07-18 | 2023-12-26 | 中交四航工程研究院有限公司 | Underwater dynamic compaction device and construction method thereof |
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