CN203729259U - Milling forming system of gravity wharf foundation bed - Google Patents
Milling forming system of gravity wharf foundation bed Download PDFInfo
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- CN203729259U CN203729259U CN201420064993.4U CN201420064993U CN203729259U CN 203729259 U CN203729259 U CN 203729259U CN 201420064993 U CN201420064993 U CN 201420064993U CN 203729259 U CN203729259 U CN 203729259U
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- milling
- bedding
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Abstract
The utility model discloses a milling forming system of a gravity wharf foundation bed. The milling forming system includes an over-water construction work platform, a longitudinal moving track, a moving trolley, a horizontal moving track, and a milling trolley, wherein the over-water construction work platform is erected over a seabed to be processed, the longitudinal moving track is arranged on the surface of the over-water construction work platform, the moving trolley is driven on the longitudinal moving track, the horizontal moving track is arranged on the surface of the moving trolley, the milling trolley is driven on the horizontal moving track, the bottom of the milling trolley extends to the seabed to form a milling machine cutter bar, a milling cutting head is installed at the bottom of the milling machine cutter bar, and the milling machine cutter bar can vertically move. According to the milling forming system of the gravity wharf foundation bed, a technology of directly performing mechanical milling forming on the foundation bed surface is provided, the technology can be applied to constructing a gravity wharf structure on small burial depth bed rocks, naked bed rocks or a table coral reef, and the milling forming system has the advantages of being capable of adjusting measures to local conditions, efficient, rapid, and low in cost.
Description
Technical field
The utility model relates to a kind of construction technology of Gravity harf structure.
Background technology
Conventional Gravity harf structure forms for structures such as the foundation trench that excavates on sea bed, riprap foundation, gravity member, relieving slab, breastworks.The excavation of foundation trench is normal to be adopted to grab and raises the excavation that formula dredge boat, cutter suction dredger engineering ship carry out foundation trench.Because of the difference of geologic structure, the amount of dredging is generally all larger, as runs into harder geologic structure, also needs to be aided with the operation at sea such as explosion reef explosion, clear reef.Owing to excavating the construction equipment of foundation trench, be Overwater-floating floating boats and ships, therefore the formed precision of foundation trench is lower, more than super wide, super dark magnitude reaches 0.5m, even so harder geologic structure, in the very strong situation of foundation capability, on foundation trench after moulding, also all design the transition zone of laying one deck fill block stone throwing, form the bedding that gravity member is installed.After the moulding of foundation trench excavation, carry out fill block stone throwing, slabstone or the rubble that paves on foundation trench, for increasing the compactness of stone layer, also need bedding to tamp, and then flattened under water by diver, formation can be installed the riprap foundation surface of gravity structure part.
For making riprap foundation structure meet the requirement of bearing capacity, the building stones material that throwing bedding is selected is generally better, and has certain grating requirement; For reducing settlement after construction, need carry out gravity compacting or underwater demolition compacting to riprap foundation, as thicker in bedding, also need to carry out layering throwing and compacting; For meeting the installation planeness of gravity type quay agent structure thing (concrete blocks, caisson, counterfort, cylinder etc.), after bedding compacting, need diver under water to bedding face carry out slightly, flat leveling construction operation carefully.Working procedure is many, and the ground material of consumption, manpower, ship machine equipment resource are many, and the whole construction period is also long, and particularly foundation trench digging process, very large to sea bed disturbance, and the discarded object excavating out is many, larger to marine environmental pollution.And because gravity member is located on the riprap foundation that void content is larger, after harbour completion, be still difficult to avoid a certain amount of settlement after construction.
Particularly on soft " basement rock " of similar coral reef dish one class, because this geologic structure itself has quite high intensity, and compare conventional on sand shale geology ground after excavation, certain thickness block of stone of throwing forms the structure of riprap foundation again, from bearing capacity, analyze, directly the bedding face as gravity type quay is feasible.
Adopt conventional dredge boat to carry out excavation waterborne more difficult, but adopt, bored pile construction efficiency is lower, consumption resource is many, operation side is large, less important work operation is many, big for environment pollution, less employing under extra large work condition, more cannot adapt to efficiently, fast, the requirement of construction and islands and reefs fast rapid-result island construction on a large scale.
Utility model content
The purpose of this utility model is to make up the deficiencies in the prior art, a kind of technology of directly carrying out mechanical type milling moulding bedding surface on sea bed is provided, be applicable to that buried depth of bedrock is more shallow, build Gravity harf structure on exposed bedrock or coral reef dish, have suit measures to local conditions efficiently, fast, advantage cheaply.
To achieve these goals, the utility model has adopted following technical scheme:
A milling formation system for gravity type quay bedding, contains following composition:
Be set up in the operation platform for over-water construction of pending sea bed top, and
Be arranged at the vertical shift track on operation platform for over-water construction surface, and
Travel on the mobile trolley used of described vertical shift track, and
Be arranged at the cross moving track on mobile trolley used surface, and
Travel on the milling chassis of described cross moving track, described milling pallet bottom extends Milling Machine knife bar to sea bed, and Milling Machine knife bar bottom is provided with milling cutter head, described in cut machine knife bar and can move in the vertical direction.
Specifically, described operation platform for over-water construction is fixed on the top for the treatment of schistosity sea bed by supporting spud leg.
Preferably, described milling chassis is provided with GPS or total powerstation positioner.
Further, described milling chassis is provided with the catch means that can be still in described cross moving track.
Further, the described mobile trolley used catch means that can be still in described vertical shift track that is provided with.
The utility model is specially adapted to build the bedding formation system of a kind of novelty of gravity type quay in non-firm ground geologic structure.Operation platform, vertically and horizontally moving track, convolution milling cutter head on hydrous water, adopt mechanical milling technology, on basement rock, carry out layering (when the original bedrock surface discrepancy in elevation larger, can adopt layered milling) Milling Process moulding, bedding face reaches after absolute altitude requirement, just can directly on bedding face, carry out the installation of the concrete prefabricated element of gravity type quay.
It is as not high in: coral reef dish, sandstone equal strength that bedding surface adopts that milling forming technique is particularly suitable for that buried depth of bedrock is more shallow, exposed bedrock, basement rock intensity are lower, in the larger geologic structure of compressibilty, builds gravity type quay.Apply this technology and carry out the moulding on bedding surface, mechanization degree is high, and the smooth precision of bedding face is high, and member installation quality is good, and short construction period consumes resource few; After not needing a large amount of earth and stone digging amounts discarded in construction, then carry out throwing cubic meter of stone moulding bedding, reduced greatly the pollution to marine environment and waters, saved the energy.This construction technology is the bedding of high-quality ground moulding gravity type quay fast, meets under offshore engineering environment, particularly at " material " more in great shortage islands and reefs, carries out fast rapid-result island construction, and can protect the marine environment to greatest extent, islands and reefs are ecological.
The utility model is because the operation of bedding moulding is few, mechanical work efficiency is high, than the construction of traditional bedding: excavation, aggregate throwing, compacting, thick flat, carefully flat technique are simple, so consumes resources is few, the engineering ship quantity that over-water construction needs is few, and construction operation efficiency is high.
The utility model takes full advantage of original landforms and the geological conditions of harbour addressing, cancelled the compressible ragstone layer loose, supporting capacity is limited, strengthened greatly the supporting capacity of harbour, be specially adapted to build gravity harbour in the geologic structure of non-solid rock.Owing to reducing the excavated volume of bedding in construction, discarded object is less, does not also need secondary throwing bedding aggregate, protects the marine environment to greatest extent, islands and reefs are ecological.Because working procedure is simple, the large-scale Waterborne construction craft machine equipment of input is few, and operation mechanization degree, operating efficiency are high, and energy consumption is less.
The utility model be particularly suitable for basement rock intensity lower as: in the geologic structures such as coral reef dish, sandstone, calcic rock, build Gravity harf structure.This technology mechanization degree is high, working procedure is few, the water project boats and ships that consume are few, bedding planeness is high, the moulding gravity type quay bedding of high-quality fast, meet under offshore engineering environment, particularly at the more in great shortage off-lying sea coral island dish of ground material, carry out the construction of quick, large-area one-tenth island.
Accompanying drawing explanation
Fig. 1 is gravity type quay bedding milling formation system elevational schematic view.
Fig. 2 is gravity type quay bedding milling moulding System planes schematic diagram.
Fig. 3 a～3d is the gravity type quay sectional schematic diagram of milling moulding, in Fig. 3 a, is wherein concrete blocks or caisson; In Fig. 3 b is concrete closed square; In Fig. 3 c is the bedding on toe shelves limit before band; In Fig. 3 d is the bedding with concave, convex tenon structure.
Fig. 4 is the staged foundation bed structure schematic diagram of milling moulding.
Fig. 5 is milling cutter head Operation trochoid schematic diagram.
Wherein, 1, over-water construction platform 2, support spud leg 3, vertical shift track 4, milling head 5, milling chassis 6, mobile trolley used 7, Milling Machine knife bar 8, milling cutter head 9, cross moving track 10, milling chassis feed screw mandrel 11, ream milling moulding bedding plane 12, concrete blocks or caisson 13, concrete closed square 14, front toe rib 15, concave, convex tenon structure 16, staged bedding 17, milling cutter head trajectory 18, milling trajectory 19, milling cutter central track trace 20, the residual limit of crescent moon are gone back in milling cutter center
The specific embodiment
Now by reference to the accompanying drawings, the milling forming technique of gravity type quay bedding milling formation system and gravity type quay bedding is illustrated.
First loaded vehicle formula harbour bedding milling formation system is as shown in Figures 1 and 2 installed.Over-water construction platform 1 positions on the bedding position of pending Milling Process by supporting spud leg 2, vertical shift track 3 is installed on over-water construction platform 1 to be vertically moved for mobile trolley used 6, cross moving track 9 is installed on mobile trolley used 6, for milling chassis 5, can be carried out transverse shifting milling feed.Milling Machine knife bar 7 is extended to sea bed in milling chassis 5 bottoms, and Milling Machine knife bar 7 bottoms are provided with milling cutter head 8, and described Milling Machine knife bar 7 can move in the vertical direction.Milling cutter head 8 is the vertical up-or-down movement at movement, mobile trolley used 6 movements at vertical shift track 3 and the Milling Machine knife bar of cross moving track 9 by milling chassis 5, realizes the three-dimensional motion of milling cutter head.
The length feed milling of a cutter spacing is located, first carried out to milling chassis 5 by GPS or total powerstation guiding, lock is positioned on vertical shift track 3 afterwards, then milling chassis 5 is along the cross moving track on mobile trolley used, under the driving of feed screw mandrel, carry out the bedding plane of a band of in-milling, complete after the basement rock milling of the first band, then enter next circulation by above-mentioned step, until mill out the bedding plane of a station.Because general frontage is long, whole bedding plane is larger, complete after the operation of a station, more mobile over-water construction platform, repeat location, the milling operation of next station, until complete the milling of whole bedding plane.
When the bedding discrepancy in elevation of former landforms and design larger, when overburden cover is larger, can on a station, carry out layered milling or the deep covering layer on bedding be adopted to other form of construction work: as hinge, inhaling the techniques such as ship, hydraulic crawler excavator, explosion and carry out pretreatment, then with this milling forming technique, carry out the retrofit of bedding, meeting the plane precision requirement that gravity member is directly installed.
If Fig. 3 a is for generally, be arranged on caisson or concrete hollow square 12 on the bedding of milling moulding.Picture in picture 3b is for generally, is arranged on the schematic diagram of the concrete closed square 13 on the bedding of milling moulding.Fig. 3 c is milling moulding with the foundation bed structure of front toe rib 14, and the antiskid that this structure can effectively increase the concrete structure of installation moves ability, improves the supporting capacity of dock structure.Fig. 3 d is milling moulding with the bedding of concave, convex tenon structure 15, and the antiskid that this structure also can effectively increase the concrete structure of installation moves ability, improves the supporting capacity of dock structure.
Because milling moulding process is the foundation bed structure that adopts mechanical milling moulding in the lithology geologic structure of some strength having, the orthostatic of basement rock is good.Bedding is not that loose particles shape slabstone throwing forms, therefore can, by the actual conditions of the geology and geomorphology of sea bed face, can be designed to flexibly multistage ladder type bedding 16, as shown in Figure 4, the excavation of bedding moulding can be reduced, the concrete total amount of prefabricated gravity member can be reduced again.
Be illustrated in figure 5 milling cutter central task trajectory as schematic diagram, by " it " shape track, bedding carried out to Milling Process.Because milling cutter is cylindrical, after above-mentioned " it " shape cutting, can on the two edges of bedding, leave crescent moon segmental arc.Therefore adopt the trajectory of a tool radius length of milling cutter " time milling ", eliminate the residual limit of tooth arc.
Application
It is all to have 10000000 year cause coral reef dish to form that Reef in Chinese South Sea has quite a few, and coral reef dish belongs to non-hard tosca and forms.The compressive strength of coral reef is in 10～25MPa left and right, and the technology of the most applicable employing milling moulding is built the harbour of Gravity harf structure.The harbour bedding of this technology, time processing moulding, operation simplifies, and can directly lay square, the caisset part of gravity, and work efficiency is high, and dock structure good stability, without the factor of settlement after construction.Construction cost is low, consumes resource few, and the discarded object of construction period is few, reduces the pollution to construction environment.
Claims (5)
1. a milling formation system for gravity type quay bedding, is characterized in that containing following composition:
Be set up in the operation platform for over-water construction of pending sea bed top, and
Be arranged at the vertical shift track on operation platform for over-water construction surface, and
Travel on the mobile trolley used of described vertical shift track, and
Be arranged at the cross moving track on mobile trolley used surface, and
Travel on the milling chassis of described cross moving track, described milling pallet bottom extends Milling Machine knife bar to sea bed, and Milling Machine knife bar bottom is provided with milling cutter head, and described Milling Machine knife bar can move in the vertical direction.
2. the milling formation system of gravity type quay bedding according to claim 1, is characterized in that: described operation platform for over-water construction is fixed on the top for the treatment of schistosity sea bed by supporting spud leg.
3. the milling formation system of gravity type quay bedding according to claim 1, is characterized in that: described milling chassis is provided with GPS or total powerstation positioner.
4. the milling formation system of gravity type quay bedding according to claim 1, is characterized in that: described milling chassis is provided with the catch means that can be still in described cross moving track.
5. the milling formation system of gravity type quay bedding according to claim 1, is characterized in that: the described mobile trolley used catch means that can be still in described vertical shift track that is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064993.4U CN203729259U (en) | 2014-02-13 | 2014-02-13 | Milling forming system of gravity wharf foundation bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420064993.4U CN203729259U (en) | 2014-02-13 | 2014-02-13 | Milling forming system of gravity wharf foundation bed |
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| Publication Number | Publication Date |
|---|---|
| CN203729259U true CN203729259U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420064993.4U Expired - Fee Related CN203729259U (en) | 2014-02-13 | 2014-02-13 | Milling forming system of gravity wharf foundation bed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806409A (en) * | 2014-02-13 | 2014-05-21 | 中交第四航务工程局有限公司 | Milling forming system of gravity wharf foundation bed and construction method for gravity wharf structure |
-
2014
- 2014-02-13 CN CN201420064993.4U patent/CN203729259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103806409A (en) * | 2014-02-13 | 2014-05-21 | 中交第四航务工程局有限公司 | Milling forming system of gravity wharf foundation bed and construction method for gravity wharf structure |
| CN103806409B (en) * | 2014-02-13 | 2017-01-04 | 中交第四航务工程局有限公司 | The milling formation system of gravity type quay bedding and the construction method of Gravity harf structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20210213 |