CN102373709A - Construction method for underwater cutting of reinforced concrete pile body - Google Patents
Construction method for underwater cutting of reinforced concrete pile body Download PDFInfo
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- CN102373709A CN102373709A CN2011103757503A CN201110375750A CN102373709A CN 102373709 A CN102373709 A CN 102373709A CN 2011103757503 A CN2011103757503 A CN 2011103757503A CN 201110375750 A CN201110375750 A CN 201110375750A CN 102373709 A CN102373709 A CN 102373709A
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Abstract
The invention relates to a construction method for underwater cutting of a reinforced concrete pile body. The construction method comprises the following steps of: firstly, arranging a construction platform and a guiding device on a drilling pile A with a non-major structure ready to be dismounted and stripping a steel protecting canister at a position with a cutting line; secondly, fixing cutting equipment on the over-water construction platform and stringing a diamond saw rope to form a loop; thirdly, remotely controlling a driving device to cut the drilling pile A with the non-major structure ready to be dismounted and stopping cutting until residual 5-8cm of the drilling pile with the non-major structure ready to be dismounted is not cut off; fourthly, dismantling the cutting equipment, the construction platform and the guiding device according to the sequence; fifthly, pulling down the pile of a ship in a reverse direction of the cutting line; and sixthly, hoisting the pulled-down pile to the bank for recycling. The invention has the advantages that a hydraulic motor is remotely controlled by a high-pressure oil pipe in the cutting process, so that high safe performance is obtained; the diamond saw rope is driven by the hydraulic motor, so that high cutting speed and power are obtained; work time for cutting the drilling pile with the diameter phi of 1.5m and the non-major structure ready to be dismounted is 4-6 hours; and the cut pile is hoisted and recovered, so that the waste and the damage to the environment are prevented and the environmental friendliness is achieved.
Description
Technical field
What the present invention relates to is the job practices that a kind of steel concrete pile body cuts under water, after it is applicable to that the bridge construction construction is accomplished, in the bridge construction process, the steel concrete pile body of non-agent structure carries out safety, static(al) efficient, environmental protection is removed.Belong to technical field of bridge construction.
Background technology
In existing bridge construction; Generally adopt the method for underwater demolition to remove to the dismounting of steel concrete pile body in the water, require necessary underwater operation during construction, and the accurate pre-buried explosion pipeline of palpus; This brings many inconvenience to Construction Arrangement; And the wave energy in the blasting process can influence agent structure, and it is improper to control, and can make main body the crack occur.There is great potential safety hazard in blast working in addition, and explosion also can pollute environment.
Summary of the invention
What the present invention proposed is the job practices that a kind of steel concrete pile body cuts under water; Its mechanism turns round around the steel concrete pile body through guide wheel based on utilizing the diamond saw rope, under the effect of certain stretching force; High-speed grinding is cut object, finally reaches to separate the purpose that is cut object.
Technical solution of the present invention: it is characterized in that this method comprises the steps,
One, on the drilled pile of preparing the non-agent structure of dismounting, arranges operation platform, guiding device, line of cut place steel casing is divested;
Two, operation platform fixes cutting equipment on the water, the diamond saw rope is put on formed the loop;
Three, remote control drives the drilled pile that cutter sweep prepares to remove non-agent structure, when the also remaining 5 ~ 8cm of the drilled pile of preparing the non-agent structure of dismounting is disconnected, stops cutting;
Four, in order cutting equipment, operation platform and guiding device are removed;
Five, in the other direction pile is forgotten about it along line of cut with ship;
The pile that six, will forget about it hangs back on the bank and recycles.
Advantage of the present invention: the steel concrete pile body is cutting method under water; Be that the diamond saw rope grinds the drilled pile of preparing to remove non-agent structure around the cut surface high-speed motion under hydraulic motor drives; Accomplish cutting work; Hydraulic pump operates steadily, and can pass through high-pressure oil pipe far distance controlled hydraulic motor, and drilled pile that prepare to remove non-agent structure can be by static separation under situation stably; Hydraulic pressure diamond saw rope cutting speed is fast, power is big, and the working time of cutting the drilled pile of a non-agent structure of Φ 1.5m preparation dismounting is 4 ~ 6 hours; The pile that cuts down can recycle, and practices thrift cost and surrounding environment is not had pollution.
Description of drawings
Accompanying drawing 1 is the general arrangement structural representation of the drilled pile of preparing to remove non-agent structure operation platform, cutter sweep, guiding device and diamond saw rope when cutting under water.
Accompanying drawing 2 is plane structure sketch mapes of Fig. 1.
Accompanying drawing 3 is prepare to remove interim syndeton sketch map between the drilled pile of non-agent structure.
A among the figure is steel concrete pile body, B riverbed line, the 1st, over-water construction platform, the 2nd, and drive unit (hydraulic driving machine), 3 guiding devices, the 4th, diamond saw rope, the 5th, interim connection reinforcing, the 6th between stake, hanger, the 7th, line of cut, the 8th prepares to remove the drilled pile, the 9th of non-agent structure, water level, the 10th, riverbed, the 11st, vertical directive wheel, the 12nd, horizontal guide sheave.
The specific embodiment
Contrast accompanying drawing 1,2; Before carrying out cutting construction; Welding is provided with over-water construction platform 1 on the steel casing more than drilled pile 8 waters surface of preparing the non-agent structure of dismounting; And the drilled pile of adjacent preparation being removed non-agent structure carries out interim connection reinforcing 5 between stake, on symmetric position on the steel casing of the drilled pile 8 of preparing the non-agent structure of dismounting, adds 2 hangers 6 of weldering, presses close to line B place, riverbed then under water guiding device 3 is set.For fixation, guiding device 3 lower ends are fixed on the steel casing of the drilled pile 8 of preparing the non-agent structure of dismounting, and vertical directive wheel 11 and horizontal guide sheave 12 are installed in the upper end of guiding device.On operation platform 1, arrange drive unit (hydraulic driving machine) 2, attention is corresponding with guiding device 3 with direction, the position of diamond saw rope 4, and the position is weldingly fixed on drive unit (hydraulic driving machine) 2 on the over-water construction platform 1 after confirming.At last diamond saw rope 4 is turned to along vertical directive wheel 11; Horizontal guide sheave 12 shown in accompanying drawing 2 is connected with the drilled pile 8 of preparing the non-agent structure of dismounting; Arrange and form circulation canal; Through romote-controlled driving device (hydraulic driving machine) 2 control diamond saw rope rotating speeds, require saw rope yarn speed to be not less than 18m/s.
Cutting equipment is made up of drive unit PPH25RR and cutter sweep SK-SD, concrete technical data of drive unit such as following table:
Speed refers to the rotation number of turns of one minute incised device.
Shown in accompanying drawing 1, because steel casing smooth surface, diamond saw rope 4 skids easily, therefore after guiding device 3 fixes, the steel casing of line of cut 7 in scope 50cm is divested, and divests behind the casing cutting efficiency and saw rope life-span all to be improved.The steel concrete pile body that cuts 1.5 meters of diameters needs 4 ~ 6 hours; Whether cutting process only needs regularly to observe normal; Remove the also remaining 5 ~ 8cm of drilled pile of the non-agent structure machine that stops when disconnected and get final product cutting to the preparation of prepare removing non-agent structure; Remove cutter sweep then in order successively, the boring pile that non-agent structure is removed in the preparation that will prepare to remove non-agent structure along the opposite direction of line of cut with ship forgets about it.
Contrast accompanying drawing 3; The general Cutting Length of drilled pile of preparing the non-agent structure of dismounting is 10 ~ 12 meters; The about 54t of single pile weight of Φ 1.5m is suspended to after pile forgets about it on the bank, and steel casing and reinforcing bar are reclaimed; And the concrete construction rubbish of abolishing carried out special disposal, realize the purpose of environmental protection.
Claims (3)
1. the job practices that the steel concrete pile body cuts under water is characterized in that this method comprises the steps,
One, on the drilled pile of preparing the non-agent structure of dismounting, arranges operation platform, guiding device, line of cut place steel casing is divested;
Two, operation platform fixes cutting equipment on the water, the diamond saw rope is put on formed the loop;
Three, remote control drives the drilled pile that cutter sweep prepares to remove non-agent structure, when the also remaining 5 ~ 8cm of the drilled pile of preparing the non-agent structure of dismounting is disconnected, stops cutting;
Four, in order cutting equipment, operation platform and guiding device are removed;
Five, in the other direction pile is forgotten about it along line of cut with ship;
The pile that six, will forget about it hangs back on the bank and recycles.
2. a kind of steel concrete pile body according to claim 1 is cutting method under water; It is characterized in that between guiding device and line of cut, having designed a horizontal guide sheave, vertical directive wheel; The installation of this directive wheel makes the saw rope very round along the ground break-in along it, thereby satisfies split requirement.
3. a kind of steel concrete pile body according to claim 1 is cutting method under water; After it is characterized in that step 3 prepare to be removed the drilled pile of non-agent structure and cut off; Pile is hung back on the bank; With steel casing and reinforcing bar recycling, and concrete rubbish carried out special disposal, reach the target of environmental protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103757503A CN102373709A (en) | 2011-11-23 | 2011-11-23 | Construction method for underwater cutting of reinforced concrete pile body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103757503A CN102373709A (en) | 2011-11-23 | 2011-11-23 | Construction method for underwater cutting of reinforced concrete pile body |
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| CN102373709A true CN102373709A (en) | 2012-03-14 |
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| CN2011103757503A Pending CN102373709A (en) | 2011-11-23 | 2011-11-23 | Construction method for underwater cutting of reinforced concrete pile body |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103015365A (en) * | 2012-12-31 | 2013-04-03 | 广州文冲船厂有限责任公司 | Construction method for removing dock entrance |
| CN107000086A (en) * | 2014-11-26 | 2017-08-01 | 迪亚蒙德第公司 | Succour saw cutting system and method |
| CN108453908A (en) * | 2018-04-30 | 2018-08-28 | 安徽省公路桥梁工程有限公司 | Cantilever box beam temporary consolidation cuts off system and cuts off method |
| CN108570987A (en) * | 2018-05-16 | 2018-09-25 | 福建省新能海上风电研发中心有限公司 | The method for dismounting of offshore wind turbine foundation steel-pipe pile |
| CN110886219A (en) * | 2019-10-31 | 2020-03-17 | 安徽省路港工程有限责任公司 | Construction method of in-water support dismantling system for cast-in-place bridge steel pipe pile |
| CN110984003A (en) * | 2020-01-17 | 2020-04-10 | 广东冠粤路桥有限公司 | Method for removing pier and bearing platform at lower part of river-crossing bridge |
| CN110984004A (en) * | 2020-01-17 | 2020-04-10 | 广东冠粤路桥有限公司 | Method for dismantling lower supporting structure of bridge |
| CN112813977A (en) * | 2020-12-24 | 2021-05-18 | 中交第三航务工程局有限公司江苏分公司 | Construction method for cutting off ultrahigh concrete pipe pile by using rope saw |
| CN114737567A (en) * | 2022-03-18 | 2022-07-12 | 北京住总集团有限责任公司 | Underground closed space middle column cutting method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103015365A (en) * | 2012-12-31 | 2013-04-03 | 广州文冲船厂有限责任公司 | Construction method for removing dock entrance |
| CN107000086A (en) * | 2014-11-26 | 2017-08-01 | 迪亚蒙德第公司 | Succour saw cutting system and method |
| CN108453908A (en) * | 2018-04-30 | 2018-08-28 | 安徽省公路桥梁工程有限公司 | Cantilever box beam temporary consolidation cuts off system and cuts off method |
| CN108453908B (en) * | 2018-04-30 | 2023-09-26 | 安徽省公路桥梁工程有限公司 | Temporary consolidation cutting system and method for cantilever casting box girder |
| CN108570987A (en) * | 2018-05-16 | 2018-09-25 | 福建省新能海上风电研发中心有限公司 | The method for dismounting of offshore wind turbine foundation steel-pipe pile |
| CN110886219B (en) * | 2019-10-31 | 2021-04-30 | 安徽省路港工程有限责任公司 | Construction method of in-water support dismantling system for cast-in-place bridge steel pipe pile |
| CN110886219A (en) * | 2019-10-31 | 2020-03-17 | 安徽省路港工程有限责任公司 | Construction method of in-water support dismantling system for cast-in-place bridge steel pipe pile |
| CN110984004A (en) * | 2020-01-17 | 2020-04-10 | 广东冠粤路桥有限公司 | Method for dismantling lower supporting structure of bridge |
| CN110984003B (en) * | 2020-01-17 | 2021-07-06 | 广东冠粤路桥有限公司 | Method for removing pier and bearing platform at lower part of river-crossing bridge |
| CN110984004B (en) * | 2020-01-17 | 2021-07-06 | 广东冠粤路桥有限公司 | Method for dismantling lower supporting structure of bridge |
| CN110984003A (en) * | 2020-01-17 | 2020-04-10 | 广东冠粤路桥有限公司 | Method for removing pier and bearing platform at lower part of river-crossing bridge |
| CN112813977A (en) * | 2020-12-24 | 2021-05-18 | 中交第三航务工程局有限公司江苏分公司 | Construction method for cutting off ultrahigh concrete pipe pile by using rope saw |
| CN114737567A (en) * | 2022-03-18 | 2022-07-12 | 北京住总集团有限责任公司 | Underground closed space middle column cutting method |
| CN114737567B (en) * | 2022-03-18 | 2024-02-27 | 北京住总集团有限责任公司 | Underground closed space intermediate column cutting method |
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Application publication date: 20120314 |