CN103015365A - Construction method for removing dock entrance - Google Patents
Construction method for removing dock entrance Download PDFInfo
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- CN103015365A CN103015365A CN2012105923875A CN201210592387A CN103015365A CN 103015365 A CN103015365 A CN 103015365A CN 2012105923875 A CN2012105923875 A CN 2012105923875A CN 201210592387 A CN201210592387 A CN 201210592387A CN 103015365 A CN103015365 A CN 103015365A
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention relates to a construction method for removing a dock entrance connected with a jetty type wharf. The construction method comprises the following steps: removing a panel, a beam piece, an edge beam and a cross beam in an area of the jetty type wharf adjacent to an underground cutting range of the dock entrance; cutting a cast-in-place pile; and cutting a docking block. In the construction process, the cast-in-place pile and the docking block are cut by using a chain saw machine and the cut part is lifted to the wharf to be crushed. The construction method for removing the dock entrance, provided by the invention, has the benefits of mechanical operation, easy operation, high safety, high construction speed, no vibration, no noise, small influence on surrounding environment and no damage to other structures of the wharf and the dock entrance.
Description
Technical field
The present invention relates to a kind of job practices of dock structure, especially relate to the job practices that a kind of dock entrance that will join with jetty is removed.
Background technology
Dock be used to repair, the hydraulic structure of shipbuilding oceangoing ship, be repair in the dockyard, the working platform of shipbuilding oceangoing ship.Dock is divided into dry dock, the dock of pouring water, floating dock etc., and wherein three faces of dry dock connect the land one side near water, and its element is dock entrance, dock chamber and dock head.Dock entrance is used for the turnover boats and ships, is provided with the dash dock gate, and the row irrigation equipment of dock is often built in the docking block of dock entrance both sides; Dock chamber is used for placing boats and ships, is provided with block and the abutment pier of supporting boats and ships at the base plate of dock chamber; Dock head is an end relative with dock entrance, and the space of dock head is the part of dock chamber, here dismounting screw and tailing axle.
Along with the rising of domestic shipbuilding industry shipbuilding capacity, the tonnage of single boats and ships is increasing.Meanwhile, also to extend accordingly for the dock of repairing, make the large boats and ships of tonnage.The enlarging of dock need to be removed former dock entrance, and exist at present the part dock to link to each other with jetty, when removing former dock entrance, consider Hoisting Security, needing will be with dock entrance after the castinplace pile of the jetty that faces mutually of cut coverage is removed under water, carries out docking block again and cuts under water.
The shaping explosion is mainly adopted in the cutting of existing castinplace pile, docking block.Adopt explosion cutting docking block that two shortcomings are arranged, the one, docking block is free state, is difficult to control its toppling direction, if swing to the dock entrance inboard, then can be to other structure injury of dock; The 2nd, explosion produces certain vibrations, also can be to other structure injury of dock.
Summary of the invention
In view of this, be necessary for the problems referred to above, provide a kind of construction reasonable, so that the job practices that the dock chamber of dock, the injury-free dock entrance of dock head are removed.
The present invention is by the following technical solutions:
The job practices that a kind of dock entrance is removed may further comprise the steps:
1) with in the jetty with dock entrance under water cut coverage face mutually the zone (following will " in the jetty with dock entrance under water cut coverage face mutually the zone " referred to as " facing mutually the zone ") and panel, beam sheet, side bar, crossbeam remove;
2) castinplace pile cutting
Determine to face mutually the cut surface of castinplace pile in the zone, remove the part that is positioned at cut surface in the steel casing, the first directive wheel is installed on the castinplace pile, the first chain saw machine main frame is installed on the castinplace pile top platform, after the first diamond chain is walked around the castinplace pile part of cut surface, be connected the first chain saw machine cutting castinplace pile with the first chain saw machine main frame through the first directive wheel;
The position of cut surface is determined according to the required maximum draft of ship undocking;
3) docking block cutting
Water in the dock chamber is drained, in the depressed place, bore the first cutting technique hole and the second directive wheel is installed for the first time, in dock chamber, discharge water, behind the water level balance outside in the depressed place and the depressed place, bore the first cutting technique hole for the second time, after twice boring, the first cutting technique hole drill is logical, after the second diamond chain passed the first cutting technique hole, be connected with the second chain saw machine main frame through the second directive wheel, the second chain saw machine main frame is installed on the water surface or the land again;
The drilling depth second time in described the first cutting technique hole is 0.4～0.7m, before discharging water in dock chamber, carries out boring the first time the first cutting technique hole and the second directive wheel is installed can be reduced the underwater operation time;
The position in the first cutting technique hole determines according to the elevating capacity of crane gear, by calculating the cutter unit weight of docking block, determines the cutter unit size, thereby determines the position in the first cutting technique hole.
Also comprise the part caisson if face mutually the zone, then finish castinplace pile cutting after, also need caisson is cut; The job practices that described dock entrance is removed also comprise be positioned at step 2) and step 3) between step that caisson is cut, be specially and carry out boring the first time the second cutting technique hole in the caisson inboard and the 3rd directive wheel is installed, after pouring water in the caisson, carry out boring the second time the second cutting technique hole in the caisson outside, after twice boring, the second cutting technique hole drill is logical, after the 3rd diamond chain passed the second cutting technique hole, be connected with the 3rd chain saw machine main frame through the 3rd directive wheel, the 3rd chain saw machine main frame is installed on the water surface or the land again;
The drilling depth second time in described the second cutting technique hole is 0.4～0.7m;
The position in the second cutting technique hole is determined according to the elevating capacity of the required maximum draft of ship undocking, crane gear etc.
Further, step 2) in, in removing the steel casing, be positioned at the part of cut surface before, need to carry out underwater desilting work, until the mud face is below cut surface.
Further, step 2) in, the first directive wheel is installed on the cutting support, and cutting support is sunk under water, and behind the arrival cut surface absolute altitude, is fixed on the castinplace pile.
Further, step 2) in, when taking advantage of low tide that castinplace pile top is tight with the wire rope bolt before the cutting castinplace pile, and hang with crane gear, to pour at the bottom of the river after avoiding castinplace pile to cut off, to be cut having no progeny is transported to harbour and carries out fragmentation.
Further, in the step 3), before the cutting docking block, also need to bore the first hole for hoist, before in dock chamber, discharging water, in the depressed place, bore the first hole for hoist for the first time, in dock chamber, discharge water, for the second time bore the first hole for hoist, after twice boring, the first hole for hoist is drilled through, latch is passed the first hole for hoist, the steel wire loop of crane gear behind the cutting docking block, is transported to harbour with docking block and carries out fragmentation on latch;
The drilling depth second time of described the first hole for hoist is 0.4～0.7m.
Further, described the first hole for hoist is arranged in more than the low tide water level, and is equal to or greater than 3m with the distance on docking block top.
Further, in the step 3), during the cutting docking block, carry out first the bottom transverse cutter, cut again perpendicular cutter, can avoid like this cutter unit in the cutting process because the diamond chain is being pressed in the deadweight drop.
Further, before the cutting caisson, also need to bore the second hole for hoist, before pouring water in the caisson, in caisson, bore first the second hole for hoist for the first time, after pouring water in the caisson, bore the second hole for hoist for the second time in the caisson outside, after twice boring, the second hole for hoist is drilled through, crane gear is connected with caisson by the second hole for hoist, and behind the cutting caisson, crane gear is transported to harbour with caisson and carries out fragmentation;
The drilling depth second time of described the second hole for hoist is 0.4～0.7m;
The center of gravity line of caisson cutting part is mainly considered in the position of the second hole for hoist, avoids unstability in the handling process.
Further, the drilling depth second time of described the first cutting technique hole, the second cutting technique hole, the first hole for hoist, the second hole for hoist is 0.5m.
With respect to prior art, beneficial effect of the present invention is:
But 1 mechanization, easy operating, safe, speed of application is fast;
2, friction, noiseless, little to surrounding environment influence;
3, can be to other structure injury of harbour, dock entrance.
Description of drawings
Fig. 1 is the structural representation of jetty and dock.
Fig. 2 is castinplace pile cutting schematic diagram.
Fig. 3 is for facing mutually the caisson schematic diagram in zone.
Fig. 4 is the schematic diagram at a certain visual angle of docking block cutting.
Fig. 5 is the schematic diagram at another visual angle of docking block cutting.
Among the figure: 1-panel, 2-beam sheet, 3-side bar, 4-crossbeam, the 6-castinplace pile, 7-steel casing, 8-the first directive wheel, 9-cutting support, 11-the first chain saw machine main frame, 12-the first diamond chain, 13-caisson, 14-the second cutting technique hole, 16-the second hole for hoist, 17-docking block, 18-the first cutting technique hole, 19-the first hole for hoist, 21-the second directive wheel, 22-the second diamond chain, 23-the second chain saw machine main frame, 24-latch.
The specific embodiment
For the ease of it will be appreciated by those skilled in the art that the present invention is described further below in conjunction with accompanying drawing.
Referring to figs. 1 to Fig. 5, construction process of the present invention is as follows: remove panel 1, side bar 3, crossbeam 4 → cutting castinplace pile 6 → cutting caisson 13 → cutting docking block 17.
1) removes panel 1, beam sheet 2, side bar 3, crossbeam 4
Adopt the dish saw that the panel 1 that faces mutually the zone is removed, then with chain saw the beam sheet 2, side bar 3, the crossbeam 4 that face mutually the zone are removed; Consider the loop wheel machine crane capacity, panel 1, beam sheet 2, side bar 3, crossbeam 4 that can volume is larger be divided into two cuttings, and cutting sequence must be arranged backward by the front row and take in.
2) cutting castinplace pile 6
Determine to face mutually the cut surface of castinplace pile 6 in the zone according to the required maximum draft of ship undocking, will be positioned at the part burn off of cut surface in the steel casing 7 with underwater plasma cutting gun.Because the mud face before burn off steel casing 7, carries out underwater desilting work with dredge boat first on cut surface under water, until under water the mud face under cut surface.
The cutting support 9 that the first directive wheel 8 will be installed with loop wheel machine sinks under water, and behind the arrival cut surface absolute altitude, is drilled in castinplace pile 6 at the bottom with hydraulic shock by the diver and beats expansion bolts, and fixedly cutting support 9; At castinplace pile 6 top platforms the first chain saw machine main frame 11 is installed; After the first diamond chain 12 is walked around castinplace pile 6 parts of cut surface, be connected with the first chain saw machine main frame 11 through the first directive wheel 8, the first chain saw machine begins to cut castinplace pile 6.
Before cutting castinplace pile 6, when taking advantage of low tide, use the wire rope bolt tight on castinplace pile 6 tops, and hang with crane gear, avoid pouring at the bottom of the river after castinplace pile 6 cut-outs.To be cut having no progeny is transported to harbour and carries out fragmentation.
3) cutting caisson 13
Consider Lifting Capacity and Hoisting Security, caisson in the cut coverage 13 is divided into two, the cutting personnel carry out boring in advance the second cutting technique hole 14, bore the second hole for hoist 16 for the first time, the 3rd directive wheel (not shown in FIG.) are installed the first time in caisson 13 inboards.Tank wall is thick to be 1m, and the drilling depth first time of the second cutting technique hole 14 and the second hole for hoist 16 is 0.5m, remains 0.5 meter and is drilled through after caisson 13 is poured water with the hydraulic pressure spark by the diver.
Wherein, the position in the second cutting technique hole 14 is determined according to the elevating capacity of the required maximum draft of ship undocking, crane gear etc.; The center of gravity line of caisson 13 cutting parts is mainly considered in the position of the second hole for hoist 16, avoids unstability in the handling process.
Before cutting caisson 13, crane gear is connected with caisson 13 by the second hole for hoist 16; After the 3rd diamond chain (not shown in FIG.) passed the second cutting technique hole 14, through the 3rd directive wheel again be installed on the water surface on the 3rd chain saw machine main frame be connected (not shown in FIG.), begin cutting.In the process of cutting, carry out transverse cuts during elder generation, vertically cut again.Behind the cutting caisson 13, crane gear is transported to harbour with caisson 13 and carries out fragmentation.
4) docking block 17 cuttings
Before not pouring water in the depressed place, the cutting personnel bore first the first cutting technique hole 18 for the first time, bore the first hole for hoist 19 for the first time, the second directive wheel 21 are installed in the depressed place.Because docking block 17 thickness are 3m, the drilling depth first time of the first cutting technique hole 18 and the first hole for hoist 19 is 2.5m.In dock chamber, discharge water, behind the water level balance outside in the depressed place and the depressed place, the first cutting technique hole 18, the first hole for hoist 19 are drilled through.
Wherein, the position in the first cutting technique hole 18 determines according to the elevating capacity of crane gear, by calculating the cutter unit weight of docking block 17, determines the cutter unit size, thereby determines the position in the first cutting technique hole 18; The first hole for hoist 19 is arranged in more than the low tide water level, and equals 3m with the distance on docking block 17 tops.
After the second diamond chain 22 passed the first cutting technique hole 18, through the second directive wheel 21 again be installed on the water surface on the second chain saw machine main frame 23 be connected, begin to cut docking block 17, the cutting process in, carry out transverse cuts during elder generation, vertically cut again.Before cutting docking block 17, latch 24 is passed the first hole for hoist 19, the steel wire loop of crane gear is on latch 24; Behind the cutting docking block 17, crane gear is transported to harbour with docking block 17 and carries out fragmentation.
Above demonstration and described basic principle of the present invention and principal character, it describes comparatively concrete and in detail, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. the job practices that dock entrance is removed is characterized in that, may further comprise the steps:
1) with in the jetty with dock entrance under water the cut coverage panel, beam sheet, side bar, crossbeam that face mutually the zone remove;
2) castinplace pile cutting
Determine in the jetty with dock entrance under water cut coverage face mutually the cut surface of castinplace pile in the zone, remove the part that is positioned at cut surface in the steel casing, the first directive wheel is installed on the castinplace pile, the first chain saw machine main frame is installed on the castinplace pile top platform, after the first diamond chain is walked around the castinplace pile part of cut surface, be connected the first chain saw machine cutting castinplace pile with the first chain saw machine main frame through the first directive wheel;
The position of cut surface is determined according to the required maximum draft of ship undocking;
3) docking block cutting
Water in the dock chamber is drained, in the depressed place, bore the first cutting technique hole and the second directive wheel is installed for the first time, in dock chamber, discharge water, behind the water level balance outside in the depressed place and the depressed place, bore the first cutting technique hole for the second time, after twice boring, the first cutting technique hole drill is logical, after the second diamond chain passed the first cutting technique hole, be connected with the second chain saw machine main frame through the second directive wheel, the second chain saw machine main frame is installed on the water surface or the land again;
The drilling depth second time in described the first cutting technique hole is 0.4～0.7m;
The position in the first cutting technique hole determines according to the elevating capacity of crane gear, by calculating the cutter unit weight of docking block, determines the cutter unit size, thereby determines the position in the first cutting technique hole.
2. the dock entrance according to claim 1 job practices of removing is characterized in that: also comprise in the jetty with the dock entrance cut coverage cutting of facing mutually caisson in the zone under water, be specially
Carry out boring the first time the second cutting technique hole in the caisson inboard and the 3rd directive wheel is installed, after pouring water in the caisson, carry out boring the second time the second cutting technique hole in the caisson outside, after twice boring, the second cutting technique hole drill is logical, after the 3rd diamond chain passed the second cutting technique hole, be connected with the 3rd chain saw machine main frame through the 3rd directive wheel, the 3rd chain saw machine main frame is installed on the water surface or the land again;
The drilling depth second time in described the second cutting technique hole is 0.4～0.7m;
The position in the second cutting technique hole is determined according to the elevating capacity of the required maximum draft of ship undocking, crane gear etc.
3. the dock entrance according to claim 1 and 2 job practices of removing is characterized in that: step 2) in, in removing the steel casing, be positioned at the part of cut surface before, need to carry out underwater desilting work, until the mud face is below cut surface.
4. the job practices of dock entrance dismounting according to claim 1 and 2 is characterized in that: step 2) in, the first directive wheel is installed on the cutting support, and cutting support is sunk under water, and behind the arrival cut surface absolute altitude, is fixed on the castinplace pile.
5. the dock entrance according to claim 1 and 2 job practices of removing is characterized in that: step 2) in, when taking advantage of low tide that castinplace pile top is tight with the wire rope bolt before the cutting castinplace pile, and hang with crane gear, to be cut having no progeny is transported to harbour and carries out fragmentation.
6. the job practices of dock entrance dismounting according to claim 1 and 2 is characterized in that: in the step 3), before the cutting docking block, also need to bore the first hole for hoist, before in dock chamber, discharging water, in the depressed place, bore the first hole for hoist for the first time, in dock chamber, discharge water, for the second time bore the first hole for hoist, after twice boring, the first hole for hoist is drilled through, latch is passed the first hole for hoist, the steel wire loop of crane gear behind the cutting docking block, is transported to harbour with docking block and carries out fragmentation on latch;
The drilling depth second time of described the first hole for hoist is 0.4～0.7m.
7. the dock entrance according to claim 6 job practices of removing, it is characterized in that: described the first hole for hoist is arranged in more than the low tide water level, and is equal to or greater than 3m with the distance on docking block top.
8. the job practices of dock entrance dismounting according to claim 1 and 2 is characterized in that: in the step 3), during the cutting docking block, carry out first the bottom transverse cutter, cut perpendicular cutter again.
9. the dock entrance according to claim 2 job practices of removing, it is characterized in that: before the cutting caisson, also need to bore the second hole for hoist, before pouring water in the caisson, in caisson, bore first the second hole for hoist for the first time, after pouring water in the caisson, bore the second hole for hoist for the second time in the caisson outside, after twice boring, the second hole for hoist is drilled through, crane gear is connected with caisson by the second hole for hoist, and behind the cutting caisson, crane gear is transported to harbour with caisson and carries out fragmentation;
The drilling depth second time of described the second hole for hoist is 0.4～0.7m.
10. the dock entrance according to claim 2 job practices of removing, it is characterized in that: the drilling depth second time in described the first cutting technique hole, the second cutting technique hole is 0.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592387.5A CN103015365B (en) | 2012-12-31 | 2012-12-31 | Construction method for removing dock entrance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592387.5A CN103015365B (en) | 2012-12-31 | 2012-12-31 | Construction method for removing dock entrance |
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| Publication Number | Publication Date |
|---|---|
| CN103015365A true CN103015365A (en) | 2013-04-03 |
| CN103015365B CN103015365B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210592387.5A Active CN103015365B (en) | 2012-12-31 | 2012-12-31 | Construction method for removing dock entrance |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159050A (en) * | 1996-12-04 | 1998-06-16 | Touden Sekkei Kk | Banking method |
| CN201511456U (en) * | 2009-10-12 | 2010-06-23 | 中交一航局第二工程有限公司 | Cutting machine for large-diameter concrete pipe pile |
| CN102373709A (en) * | 2011-11-23 | 2012-03-14 | 中铁大桥局集团第二工程有限公司 | Construction method for underwater cutting of reinforced concrete pile body |
| CN102444104A (en) * | 2011-10-17 | 2012-05-09 | 深圳市孺子牛建设工程有限公司 | Special tool and construction method for undamaged drilling of bottom plates of caissons |
| CN102733391A (en) * | 2012-07-11 | 2012-10-17 | 中交三航局第二工程有限公司 | Construction method of pile body underwater cutting |
-
2012
- 2012-12-31 CN CN201210592387.5A patent/CN103015365B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159050A (en) * | 1996-12-04 | 1998-06-16 | Touden Sekkei Kk | Banking method |
| CN201511456U (en) * | 2009-10-12 | 2010-06-23 | 中交一航局第二工程有限公司 | Cutting machine for large-diameter concrete pipe pile |
| CN102444104A (en) * | 2011-10-17 | 2012-05-09 | 深圳市孺子牛建设工程有限公司 | Special tool and construction method for undamaged drilling of bottom plates of caissons |
| CN102373709A (en) * | 2011-11-23 | 2012-03-14 | 中铁大桥局集团第二工程有限公司 | Construction method for underwater cutting of reinforced concrete pile body |
| CN102733391A (en) * | 2012-07-11 | 2012-10-17 | 中交三航局第二工程有限公司 | Construction method of pile body underwater cutting |
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| Publication number | Publication date |
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| CN103015365B (en) | 2014-11-05 |
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