CN103806409A - Milling forming system of gravity wharf foundation bed and construction method for gravity wharf structure - Google Patents
Milling forming system of gravity wharf foundation bed and construction method for gravity wharf structure Download PDFInfo
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- CN103806409A CN103806409A CN201410050411.1A CN201410050411A CN103806409A CN 103806409 A CN103806409 A CN 103806409A CN 201410050411 A CN201410050411 A CN 201410050411A CN 103806409 A CN103806409 A CN 103806409A
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Abstract
The invention discloses a milling forming system of a gravity wharf foundation bed. The milling forming system of the gravity wharf foundation bed comprises an over-water construction work platform erected above a seabed to be processed, a longitudinal moving rail arranged on the surface of the over-water construction work platform, a moving trolley moving on the longitudinal moving rail, a transverse moving rail arranged on the surface of the moving trolley and a milling trolley moving on the transverse moving rail. The bottom of the milling trolley stretches towards the seabed to form a milling machine tool bar, a milling tool bit is mounted on the bottom of the milling machine tool bar, and the milling machine tool bar can move in the vertical direction. The milling forming system of the gravity wharf foundation bed is a technology for directly carrying out mechanical milling to form the surface of the foundation bed on the seabed, is suitable for establishing a gravity wharf structure on areas with shallow burial depth of bed rock, or areas with the bed rock exposed or coral reef areas, and has the advantages of being efficient, fast and low in cost by adjusting measures to local conditions.
Description
Technical field
The present invention relates to a kind of construction technology of Gravity harf structure.
Background technology
Conventional Gravity harf structure is the structure compositions such as the foundation trench that excavates on sea bed, riprap foundation, gravity member, relieving slab, breastwork.The excavation of foundation trench is normal to be adopted and grabs the excavation of raising formula dredge boat, cutter suction dredger engineering ship and 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.Because the construction equipment of excavation foundation trench is 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 therefore 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, particularly foundation trench digging process, and very large to sea bed disturbance, 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, analyzing from bearing capacity, is directly feasible as the bedding face of gravity type quay.
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.
Summary of the invention
The object of the invention 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 present invention 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.
A milling forming method for gravity type quay bedding, comprises the following steps:
(1) adopt system as above on the basement rock of pending sea bed, to carry out Milling Process, form planeness and meet the bedding plane that member is installed;
(2) directly on the bedding surface of Milling Process, high density concrete prefabricated units are installed.
For the antiskid that improves bedding face and concrete prefabricated element baseplane moves ability, can can process by milling the bedding of the front toe wall-retaining structure of band, also can be on bedding face Milling Process go out to have the bedding of concave, convex tenon structure, increased gravity member bottom and bedding face quality of fit, strengthening the overall stability against slope of dock structure.
Owing to being the foundation bed structure that adopts mechanical milling moulding in the lithology geologic structure that has some strength, rather than the bedding face of loose particles shape slabstone throwing formation, therefore can be by the actual conditions of the geology and geomorphology of sea bed face, can be designed to flexibly the foundation bed structure of multistage ladder type, the excavation of bedding moulding can be reduced, the concrete total amount of prefabricated gravity member can be reduced again.
Specifically, the concrete prefabricated element in step 2 comprises one or more in concrete closed square, hollow square, caisson, immersed tube tunnel tube coupling.
Further, step 1 can first adopt floatation type cutter suction dredger to carry out after pretreatment sea bed, then adopts system as above to carry out Milling Process processing.
For the larger situation of the original bedrock surface discrepancy in elevation of pending sea bed, described step 1 also comprises the processing of basement rock being carried out to layered milling processing.
Milling cutter head is the vertical up-or-down movement at the movement of cross moving track, the mobile trolley used movement at vertical shift track and milling knife bar by milling chassis, realizes the three-dimensional motion of milling cutter head.
Because mechanical milling equipment is to be installed on the pier of rigid support on sea bed (riverbed), the reamer frame that is different from cutter suction dredger is arranged on the hull of floatation type, therefore can on basement rock, mill out flatness and reach a quite high bedding surface (can reach: precision more than ± 10mm), can meet member the bedding surface that planeness requires can be directly installed.The present invention is specially adapted to build the bedding forming technique 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 carries out fast rapid-result island construction at " material " more in great shortage islands and reefs, and can protect the marine environment to greatest extent, islands and reefs ecology.
Gravity type quay design specifications, the ultimate bearing capacity of riprap foundation is generally at 0.15～0.3MPa, and the ultimate bearing capacity of the bedding of milling moulding just approaches the ultimate bearing capacity of coral reef itself on coral reef dish, therefore this bedding face supporting capacity exceeds the order of magnitude one or two than the former.And under conventional harbour load, coral reef bedding exists without the factor of settlement after construction substantially.Therefore improved greatly the integrally-built supporting capacity of harbour.
The present invention 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, and therefore consumes resources is few, the engineering ship quantity that over-water construction needs is few, and construction operation efficiency is high.
In traditional bedding construction, even if the geology of bedding position part has been lithology structure, but for to meet the smooth requirement of overall bedding, still do not needed to adopt the mode of reef explosion operation, removed this part hard structure.The present invention can adopt mechanical Milling Process mode, as required, and directly Milling Process moulding bedding face in lithology structure.
In the time that bedding plane is darker under water, the leveling operation of bedding is carried out in artificial deep diving, and not only efficiency is low, cost is high, and operating risk is larger.The bedding face of installing due to gravity member of the present invention is to adopt the moulding of mechanical Milling Process mode, therefore flattens under water operation without diver.
The present invention takes full advantage of original landforms and the geological conditions of harbour addressing, has cancelled the compressible ragstone layer loose, supporting capacity is limited, has strengthened greatly the supporting capacity of harbour, is 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 ecology.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 present invention 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 carry out the construction of quick, large-area one-tenth island at the more in great shortage off-lying sea coral island dish of ground material.
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 method of gravity type quay bedding milling formation system of the present invention 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, can be carried out transverse shifting milling feed for milling chassis 5.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: inhale the techniques such as ship, hydraulic crawler excavator, explosion as hinge and carry out pretreatment, then in the retrofit of carrying out bedding with this milling forming technique, meet 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 the foundation bed structure with 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 the bedding with 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 that has some strength, 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 (9)
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. a construction method for Gravity harf structure, is characterized in that comprising the following steps:
(1) adopt the system as claimed in claim 1 on the basement rock of pending sea bed, to carry out Milling Process, form planeness and meet the bedding surface that member is installed;
(2) the direct bedding Plane Installation gravity concrete prefabricated element in Milling Process.
3. the construction method of Gravity harf structure according to claim 2, is characterized in that: the surface of bedding described in step 1 has the front toe wall-retaining structure forming by Milling Process.
4. the construction method of Gravity harf structure according to claim 2, is characterized in that: the surface of bedding described in step 1 has the concave, convex tenon structure forming by Milling Process.
5. the construction method of Gravity harf structure according to claim 2, is characterized in that: the bedding surface texture that in step 1, bedding plane is formed multistage ladder type by Milling Process.
6. the construction method of Gravity harf structure according to claim 2, is characterized in that: the concrete prefabricated element in step 2 comprises one or more in concrete closed square, hollow square, caisson, immersed tube tunnel tube coupling.
7. the construction method of Gravity harf structure according to claim 2, it is characterized in that: when needs, to remove bedrock thickness larger, described step 1 can formerly adopt floatation type cutter suction dredger, excavating equipment to carry out after pretreatment sea bed, then adopts system claimed in claim 1 to carry out Milling Process processing.
8. the construction method of Gravity harf structure according to claim 2, is characterized in that: for the larger situation of the original bedrock surface discrepancy in elevation of pending sea bed, described step 1 also comprises the processing of basement rock being carried out to layered milling processing.
9. the construction method of Gravity harf structure according to claim 2, it is characterized in that: milling cutter head is the vertical up-or-down movement at the movement of cross moving track, the mobile trolley used movement at vertical shift track and Milling Machine knife bar by milling chassis, realizes the three-dimensional motion of milling cutter head.
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| CN201410050411.1A CN103806409B (en) | 2014-02-13 | 2014-02-13 | The milling formation system of gravity type quay bedding and the construction method of Gravity harf structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677257A (en) * | 2017-03-09 | 2017-05-17 | 中交第三航务工程局有限公司 | Installation process of sinking pipe for offshore water intake and discharge in power plant |
| CN107059771A (en) * | 2017-04-24 | 2017-08-18 | 中交第二航务工程局有限公司 | A kind of steel cylinder type temporary wharf construction method |
| WO2023071518A1 (en) * | 2021-10-25 | 2023-05-04 | 中交第三航务工程局有限公司 | Method for building platform for construction of cast-in-place piles of high-piled wharf |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61122095A (en) * | 1984-11-20 | 1986-06-10 | Toa Harbor Works Co Ltd | Closing method of gravity type dock gate and its closing structure |
| CN87102887A (en) * | 1987-04-16 | 1988-11-02 | 株式会社明治树脂化成 | Gravity structure and manufacture method thereof |
| CN1382876A (en) * | 2002-06-18 | 2002-12-04 | 天津大学 | Gravitation-type deep-water dock structure with cylindrical base on soft foundation |
| CN103195053A (en) * | 2013-04-19 | 2013-07-10 | 中交第四航务工程局有限公司 | Pile with pile shoulder and pile foundation construction method for pile |
| CN203729259U (en) * | 2014-02-13 | 2014-07-23 | 中交第四航务工程局有限公司 | Milling forming system of gravity wharf foundation bed |
-
2014
- 2014-02-13 CN CN201410050411.1A patent/CN103806409B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61122095A (en) * | 1984-11-20 | 1986-06-10 | Toa Harbor Works Co Ltd | Closing method of gravity type dock gate and its closing structure |
| CN87102887A (en) * | 1987-04-16 | 1988-11-02 | 株式会社明治树脂化成 | Gravity structure and manufacture method thereof |
| CN1382876A (en) * | 2002-06-18 | 2002-12-04 | 天津大学 | Gravitation-type deep-water dock structure with cylindrical base on soft foundation |
| CN103195053A (en) * | 2013-04-19 | 2013-07-10 | 中交第四航务工程局有限公司 | Pile with pile shoulder and pile foundation construction method for pile |
| CN203729259U (en) * | 2014-02-13 | 2014-07-23 | 中交第四航务工程局有限公司 | Milling forming system of gravity wharf foundation bed |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677257A (en) * | 2017-03-09 | 2017-05-17 | 中交第三航务工程局有限公司 | Installation process of sinking pipe for offshore water intake and discharge in power plant |
| CN107059771A (en) * | 2017-04-24 | 2017-08-18 | 中交第二航务工程局有限公司 | A kind of steel cylinder type temporary wharf construction method |
| WO2023071518A1 (en) * | 2021-10-25 | 2023-05-04 | 中交第三航务工程局有限公司 | Method for building platform for construction of cast-in-place piles of high-piled wharf |
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