CN115748708A - Method for underwater cutting off steel pipe pile by diamond rope and cutting-off system used for method - Google Patents
Method for underwater cutting off steel pipe pile by diamond rope and cutting-off system used for method Download PDFInfo
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- CN115748708A CN115748708A CN202211617703.XA CN202211617703A CN115748708A CN 115748708 A CN115748708 A CN 115748708A CN 202211617703 A CN202211617703 A CN 202211617703A CN 115748708 A CN115748708 A CN 115748708A
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Abstract
The invention provides a method for underwater cutting off a steel pipe pile by using a diamond rope, which comprises the following steps: assembling the steel sleeve cage: the ring beam structure that a plurality of co-altitude set up utilizes the steel pipe stand to connect, accomplishes the installation of the equipment steel cover cage of steel cover cage: sleeving the steel sleeve cage on the steel pipe pile to be cut by using hoisting equipment to realize temporary fixation with the steel pipe pile to be cut; laying diamond ropes: a steel platform is arranged on the side part of the top of the steel sleeve cage, diamond ropes on the cutting assembly on the steel platform are wound along the cutting part of the steel pipe pile to be cut and each guide wheel, and after the rest positions are fixed, the tail ends of the diamond ropes extend into the cutting assembly; cutting off: and starting a driving mechanism in the cutting assembly to drive the diamond rope to operate, and realizing cutting of the steel pipe pile to be cut under the action of tension and friction in operation. The invention utilizes the integrated steel platform and the steel sleeve cage, thereby effectively avoiding the adverse effect of the shaking of the ship on the pile cutting operation, reducing the risk of rope breakage and improving the operation efficiency and safety.
Description
Technical Field
The invention relates to the technical field of underwater cutting of steel pipe piles, in particular to a method for underwater cutting of steel pipe piles by diamond ropes and a cutting system used for the method.
Background
In ocean engineering, the situation that the steel pipe pile needs to be dismantled due to engineering such as hydraulic structure transformation, existing structure dismantling and the like often occurs, and especially when the steel pipe pile is filled with concrete, the dismantling difficulty is greatly increased. Under the action of ocean tide, waves and tidal ranges, the shaking of the construction ship has great influence on the dismantling work. The process for cutting off the steel pile by diving after chiseling the concrete from top to bottom in the traditional process has the defects of low work efficiency, high safety risk, large environmental pollution, high construction cost and the like; when the ship is used for carrying the diamond rope sawing machine to cut off underwater, the diamond rope chain is easy to break due to the shaking of the ship, and the connection or replacement of the rope can cause the prolonging of the construction period and the increasing of the cost, so that the method has great limitation in the marine environment.
Disclosure of Invention
The invention aims to provide a method for cutting off a steel pipe pile underwater by using a diamond rope and a cutting-off system used for the method.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
On one hand, the method for underwater cutting off the steel pipe pile by the diamond rope comprises the following steps:
assembling the steel sleeve cage: a plurality of ring beam structures arranged at different heights are connected by steel pipe upright posts to complete the assembly of the steel sleeve cage;
temporarily fixing the steel pipe pile to be cut off: sleeving the steel reinforcement cage on the steel pipe pile to be cut by using hoisting equipment to realize temporary fixation with the steel pipe pile to be cut;
laying diamond ropes: the steel platform is arranged on the side part of the steel sleeve cage, diamond ropes on the cutting assembly on the steel platform are wound at least along the top and the bottom of the steel pipe pile to be cut, and after the rest positions are fixed, the tail ends of the diamond ropes extend into the cutting assembly;
cutting off: and starting a driving mechanism in the cutting assembly to drive the diamond rope to operate, and realizing cutting of the steel pipe pile to be cut under the action of tension and friction in operation.
As a further improvement of the invention, in the step of assembling the steel pouring jacket, a square tube is coiled into a plurality of ring beams by using a horizontal construction method, and the ring beams are fixed in the steel pouring jacket to form a cage-shaped structure.
As a further improvement of the invention, the invention also comprises the arrangement of a reinforcing ring beam, which specifically comprises the following steps: and a plurality of circles of reinforcing ring beams are arranged at the joint of the steel platform and the steel reinforcement cage along the outside of the steel reinforcement cage.
As a further improvement of the invention, the invention also comprises the assembly of the guide wheel, in particular: and the periphery of the steel sleeve cage is provided with a plurality of groups of guide wheel groups, and each group of guide wheel group comprises at least two guide wheels arranged along the circumferential direction of the cross section of the steel sleeve cage.
As a further improvement of the invention, the guide wheel sets are arranged at least at two ends and the middle position of the steel pipe pile to be cut from top to bottom, the diamond ropes are wound at the two ends of the steel pipe pile to be cut and are fixed by the guide wheel sets, and the diamond ropes are positioned at the middle position of the steel pipe pile to be cut along the height direction and are fixed and positioned by the guide wheel sets.
As a further improvement of the invention, the diamond rope layout specifically comprises the following steps:
drawing out the diamond rope in the cutting assembly, and fixing the diamond rope after the diamond rope is wound around the top ring beam for a circle by a guide wheel on the top ring beam;
the diamond rope coming out of the top ring beam is guided by a middle guide wheel to extend to the bottom ring beam;
on the bottom ring beam, after the diamond rope winds the bottom ring beam for a circle along the guide wheel at the bottom ring beam, the diamond rope is guided to the top ring beam through the middle guide wheel again;
the diamond rope guided to the top ring beam extends into each assembly towards the steel platform on the side part after passing through the guide wheel.
As a further improvement of the invention, the diamond beads on the diamond rope are utilized to form a closed cavity, and the driving mechanism drives the closed cavity to circularly cut along the cutting point until the cutting of the steel pipe pile to be cut is completed.
On the other hand, the cutting system for the method for underwater cutting the steel pipe pile by the diamond rope comprises,
the steel platform is provided with a working surface, a cutting assembly and a diamond rope are arranged on the working surface, and the lowest point of the steel platform is higher than a cutting point of the steel pipe pile to be cut;
the steel platform is arranged close to the steel pipe pile to be cut off and is parallel to the steel pipe pile to be cut off;
the steel sleeve cage is arranged along the side part of the steel platform and used for sleeving a steel reinforcement cage for cutting off the steel pipe pile;
the ring beam is provided with a plurality of rings along the inner wall of the steel lantern ring and is fixedly arranged in the steel lantern ring;
the cutting assembly comprises a diamond rope and a driving mechanism for driving the diamond rope to move, the diamond rope is wound on the cutting position of the steel pipe pile to be cut through a guide wheel, and the driving mechanism drives the diamond rope to move to achieve cutting.
As a further improvement of the invention, the guide wheels are fixed on the ring beam, the guide wheels at two ends are used for fixing the wound diamond rope from top to bottom, and the guide wheel at the middle position is used for fixing the diamond rope in the guiding process along the arrangement of the steel pipe piles to be cut.
As a further improvement of the invention, the steel pipe pile cutting device further comprises a positioning assembly for cutting the bottom of the steel pipe pile, wherein the positioning assembly forms a placement space for placing the diamond rope wound at the bottom of the steel pipe pile to be cut in the initial cutting stage.
Drawings
FIG. 1 is a process flow chart of the method for underwater cutting off steel pipe piles by using diamond ropes according to the invention;
FIG. 2 is a schematic structural diagram of a steel rope underwater steel pipe pile cutting system provided by the invention;
FIG. 3 is a top view of the steel rope underwater steel pipe pile cutting system provided by the invention;
FIG. 4 is a bottom view of the steel rope underwater cutting steel pipe pile system provided by the invention;
FIG. 5 is a cross-sectional view of a steel rope underwater cutting steel pipe pile system provided by the invention;
in the figure:
100. a steel platform; 110. cutting off the component; 120. a diamond wire; 130. a drive mechanism; 200. a steel housing cage; 210. a steel pipe upright post; 220. a ring beam; 230. a guide wheel; 240. positioning the bolt; 250. locking the bolt; 270. reinforcing the ring beam; 280. hanging a rib; 300. and (5) cutting the steel pipe pile.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the invention, the loading system of the cutting machine is moved to the pile to be cut from the ship in order to avoid the difficult problem that the ship-mounted diamond wire saw cuts the pile underwater, so that the integrated diamond wire saw underwater pile cutting system is formed.
Referring to fig. 1-5, in the present invention, specifically, an integrated diamond wire saw underwater pile cutting system is composed of an integrated platform (i.e., a steel platform 100) and a wire saw device. The integrated platform comprises 3-6 layers of steel sleeve cages, an overhanging rigid platform, a guide wheel and the like; the wire saw device comprises a cutting assembly consisting of a cutting machine, a diamond wire and the like.
Specifically, the steel platform 100 and the steel platform 100 are provided with a cutting assembly 110 and a diamond rope 120, the cutting assembly 110 is specifically a GD-12 type cutting machine, and the diamond rope 120 is connected with the cutting assembly 110 by using a transmission assembly on the cutting machine, so that two ends of the diamond rope 120, one end of which is out of the cutting assembly 110, and the other end of which finally enters the cutting assembly 110.
In the embodiment, the cutting component is a GD-12 type cutting machine, the specification of diamond wire beads is phi 11.5mm, and the linear speed is 19-21m/s. The diamond rope is wound through rotating discs such as a driving wheel, a driven wheel and the like on the cutting machine to form a closed rope loop, the principle of the rope loop is consistent with that of a bicycle chain, and only a plurality of rotating wheels of the cutting machine are provided.
In the present invention, the working process of the cutting assembly 110 is as follows: starting a driving mechanism formed by an electric motor, and adjusting the lifting tension of a driving wheel through a control panel to ensure that the diamond rope 120 is properly tightened; the circulating cooling water is supplied, and another electric motor is started to drive the driving wheel to rotate and cut off the diamond rope 120. The stability of the machine base must be closely observed in the cutting process, and the deviation of the guide wheel is adjusted at any time to ensure that the cutting rope is in the same plane. The method and process are carried out until the cutting is carried out to a specified depth.
The steel lantern ring 200 comprises a steel pipe upright 210 and a plurality of ring beams 220 positioned in the steel pipe upright 210, wherein a guide wheel 230 is arranged on the outer side of each ring beam 220, and the guide wheels 230 are used for fixing and guiding diamond ropes;
the ring beams 220 are arranged along the inner wall of the steel sleeve cage 200, a plurality of rings of ring beams 220 are arranged, and the ring beams 220 are fixedly arranged in the steel sleeve cage 200;
the cutting assembly 110 in this embodiment includes a diamond rope 120 and a driving mechanism 130 for driving the diamond rope 120 to move, the diamond rope 120 is wound around the cutting position of the steel pipe pile 300 to be cut through by a guide wheel, the driving mechanism 130 drives the diamond rope 120 to move, and cutting is achieved by tensile force and friction in operation of the diamond rope 120.
In this embodiment, the guide wheels 230 are fixed on the ring beam 220, from top to bottom, the guide wheels 230 at two ends are used for fixing the diamond rope 120 after winding, and the guide wheel 230 at the middle position is used for fixing the diamond rope 120 in the guiding process of arranging the steel pipe pile 300 to be cut. In this embodiment, the diamond rope is partially wound around the steel pipe pile to be cut, and partially vertically downward along the height of the diamond rope, so that the diamond rope needs to be fixed by the guide wheel 230 in order to ensure the stability of the diamond rope in the vertical downward direction, and particularly avoid the influence of the diamond rope in the cutting.
In this embodiment, specifically, 8 guide wheels 230 are provided, two guide wheels 230 are provided on the top ring beam 220, in order to ensure stability, two layers of ring beams 220 are further provided at the middle position respectively, two guide wheels 230 are provided on the side portion of each ring beam 220, and two guide wheels 230 are provided on the bottom ring beam 220, when the guide wheels are provided, the guide wheels 230 at the bottom are arranged obliquely to each other, and at this time, the oblique arrangement is intended to be consistent with the angle of the diamond rope which bypasses the steel pipe pile 300 to be cut.
In the present invention, the guide wheel 230 is a metal guide wheel, and the guide wheel is fixed to the base by a pin shaft, and the base is welded and fixed to the ring beam 220. The middle of the guide wheel 230 is provided with a groove, the diamond rope 120 is arranged in the groove, and the groove realizes guiding and limiting. After the diamond wire 120 is wound, the diamond wire should be tightened by a driving wheel of the cutting machine, so that the diamond wire is tightly attached to the guide wheel. When cutting off, the diamond rope does the reciprocal motion of cutting off of circulation, and the leading wheel can rotate around the round pin axle under the diamond rope motion, prevents simultaneously that the vibration of a wide margin of diamond rope from causing the damage of steel lantern ring and diamond rope itself.
Further, the steel pipe pile cutting device further comprises a positioning assembly for cutting the bottom of the steel pipe pile 300, wherein the positioning assembly forms a placement space for placing the diamond rope 120 wound at the bottom of the steel pipe pile 300 to be cut at the initial cutting stage.
In this embodiment, actually choose for use 7 locking bolts to constitute locking Assembly, set up along waiting to cut off steel-pipe pile 300 circumference, during the assembly, screw up from the outside towards waiting to cut off steel-pipe pile 300 central direction, let the bolt head withstand and cut off the steel-pipe pile outer wall, accomplish steel pouring jacket promptly and cut off the level of steel-pipe pile to fixing.
In this embodiment, 8 locking bolts 250 are additionally arranged at the top of the steel pipe pile 300 to be cut, specifically, so as to realize fixation.
The positioning bolt forms a positioning assembly which can hold the diamond rope around the pile while tightly pushing the steel pile, namely, the diamond rope can be prevented from sliding downwards to cause that the cutting point is not concentrated at the initial cutting stage. The steel sleeve cage is hung on the pile top (the pile top is provided with a hanging rib system) under the action of self weight.
During assembly, only one positioning bolt is arranged, and 7 locking bolts are arranged. The positioning bolt can be used for placing the diamond rope wound around the pile, namely, the diamond rope can be prevented from sliding downwards to cause that the cutting point is not concentrated at the initial cutting stage.
In this embodiment, the steel sleeve cage 200 is assembled by a horizontal construction method, specifically, a steel pipe column is placed horizontally, then a plurality of ring beams are uniformly arranged in the steel pipe column, and the ring beams are fixed by a fixing component.
The construction process of the invention is as follows:
main construction process
Firstly, manufacturing an integrated steel platform
Designing an integrated steel platform according to the diameter of the steel pipe pile 300 to be cut, and controlling according to the principle that the inner diameter of a ring beam 220 on a steel sleeve cage 200 is 150-200 mm larger than the diameter of the steel pipe pile 300 to be cut; the integrated steel platform consists of a steel sleeve cage 200 and a steel platform 100, wherein the steel sleeve cage 200 consists of a bottom ring beam, a middle ring beam, a top ring beam, a steel pipe upright post, a reinforcing ring beam 270, a locking bolt 250, a positioning bolt 240 and a hanging rib 280; the steel platform 100 is composed of cross beams, longitudinal beams, raker beams, panels, equipment pedestals, and the like.
The integral type steel platform height is confirmed according to the position that the steel pile cut off the point to ensure that the platform top exceeds design high water level 1.5m, the minimum of steel platform 100 promptly, eminence water level 1.5mm, make the heat that produces can be deposited in the aquatic in cutting off, reduce the heat dissipation.
The steel cages 200 at the sides of the steel platform 100 are constructed using a horizontal construction method. Namely, the steel tube upright column 210 is placed horizontally, and then a plurality of ring beams 220 are fixed in the steel tube upright column 210 to realize assembly; specifically, a square tube with the thickness of 200mmx200mmx14mm is rolled into a ring beam 220, wherein 8 internal thread bolt holes are respectively formed in the ring beam 220 at the bottom layer and the ring beam 220 at the top layer; erecting the bottom, middle and top layer ring beams and the reinforcing ring beam on the building pedestal and temporarily fixing the ring beams by spot welding; welding steel pipe columns with the diameter of 180mm between the ring beams to form a cage body structure; the guide wheel 230 is welded to the collar 220.
In the embodiment, the cross beam, the longitudinal beam, the diagonal beam profile steel and the panel (delta 20mm steel plate) are welded according to the design drawing to form the steel platform, and the equipment pedestal is welded and fixed on the top surface of the steel platform.
Erecting the steel sleeve cage 200 on the assembly pedestal with the top facing downwards, and butt-welding the steel platform with the bottom facing upwards onto the steel sleeve cage; finally, carrying out antiseptic treatment; turning over the steel platform to enable the top to face upwards; welding hanging ribs on the ring beam, wherein 2 hanging ribs are arranged in the longitudinal direction and 2 hanging ribs are arranged in the transverse direction, and the longitudinal hanging ribs and the transverse hanging ribs are arranged in an orthogonal overlapping mode; then move the integral type steel platform to the vertical placing in storage area to accomplish and consolidate temporarily, accomplished the preparation of integral type steel platform so far.
Integrated steel platform transport
Set up the transportation pedestal on the crane ship deck, transportation pedestal and deck welded fastening. The integrated steel platform is hung on the transportation pedestal by using a crane ship, the temporary fixation of the steel platform is completed by using a bottom limiting device, and then the steel platform is pulled and reinforced in 4 directions in longitudinal and transverse directions by using stay cables (phi 20mm steel wire ropes). The integrated platform is transported to a construction site by a crane ship.
Integrated steel platform installation
After the crane ship finishes anchoring and taking place, hoisting steel wire ropes are arranged on the ring beam at the top of the integrated platform, and the hoisting steel wire ropes are symmetrically arranged at 4 hoisting points. After the steel wire rope is hung on the main hook, the limiting device between the integrated platform and the transportation pedestal is cut off, the stay cable is removed, the platform is lifted by the main hook and sleeved into the steel pipe pile to be cut from top to bottom until the lifting rib is placed on the pile top. In the embodiment, the added stay cable is a temporary reinforcing measure in the marine transportation process, so that the phenomenon that the steel platform falls down due to the shaking of the transport ship is prevented.
In this embodiment, after the fastening work of the lock bolt of the top ring beam is completed, the diver completes the fixing of the lock bolt and the positioning bolt of the bottom ring beam.
The method comprises the following steps that a diamond rope chain is pulled to a No. 1 guide wheel of a top ring beam from a cutting machine through a rope chain outlet, a diver guides the rope chain to pass through a No. 2 guide wheel and a No. 3 guide wheel (positioned at the middle ring beam) on a middle ring beam after the rope chain bypasses the No. 1 guide wheel (positioned at the top ring beam), then the rope chain vertically passes through the No. 3 guide wheel and the No. 2 guide wheel on the middle ring beam downwards to reach the No. 4 guide wheel on the bottom ring beam, and after the rope chain passes through the No. 4 guide wheel, the rope chain is clockwise wound for one circle around a steel pipe pile to be cut, and then the rope chain passes through the No. 5 guide wheel on the bottom ring beam, so that the winding of the pile cutting rope chain is completed; the rope chain is arranged above the positioning bolt, so that the accurate cutting point position is ensured; the installation horizontal included angle of the 4# guide wheel and the 5# guide wheel at the bottom ring beam is 43-46 degrees, the distance is controlled between 400mm and 600mm, and then inclined guide is formed, so that the diamond rope which bypasses the steel pipe pile to be cut is wound upwards along the inclined direction.
The rope chain vertically and upwards leads out of the water surface after passing through the No. 5 guide wheel, and sequentially passes through the No. 6 guide wheel and the No. 7 guide wheel of the middle ring beam when leading upwards; after the rope reaches the top ring beam, the rope rounds the 8# guide wheel on the top ring beam, the rope chain is turned to be arranged horizontally, the rope chain penetrates through a rope chain inlet of the cutting machine, and finally the rope chain is connected in the cutting machine die carrier.
Cutting off
Before cutting, a lifting lug or a lifting hole is welded on the top of the steel pipe pile in advance, the lifting lug or the lifting hole is symmetrically arranged, and a 2-point lifting process or a 4-point lifting process is selected according to the pile weight.
Starting the cutting machine, driving the diamond rope chain at a high speed through the hydraulic motor, circularly running the diamond rope chain around the steel pipe pile, cutting the steel pipe pile at a high speed under the action of a certain tension force, and taking away generated abrasive dust and heat by seawater and cooling water.
In the invention, specifically, in a water area, a closed cavity is formed by using diamond beads on a diamond rope, and a driving mechanism drives the closed cavity to cut along a cutting point in a circulating manner until the steel pipe pile to be cut is cut.
In the invention, diamond beads are condensed on the high-strength metal rope. The cutting is performed by the friction of the beads. The length and the tensioning degree of the diamond rope are adjusted by a driving wheel of the cutting machine. The diamond rope winds around the diameter direction of the cutting point of the steel pipe pile for a circle, the diamond rope forms a closed rope loop, and the steel pipe pile is cut through circular motion (similar to a bicycle chain). Compared with the traditional cutting mode, the steel pipe pile cutting device skillfully utilizes the principles of chain circulation work and diamond hardness friction cutting, enables the thicker steel pipe pile to be cut to be finally cut in repeated friction, and meanwhile, the steel pipe pile cutting device is matched with the steel sleeve cage to avoid shaking and the like in the cutting process of the steel pipe pile to be cut, so that the safe construction is ensured.
When the steel pipe pile is cut along the diameter direction until the cross section of the steel pipe pile to be cut remains 400-500 mm, closing the cutting machine, and a diver cooperatively removes the rope chain and loosens the positioning bolt and the locking bolt; and then integrally removing the integrated platform (including the cutting machine), installing the integrated platform on a second steel pipe pile to be cut, unhooking the crane ship, and then hoisting and removing the cut pile. In the cutting process, the cutting depth can be calculated according to the length of the steel pipe pile to be cut, which is tightened by the diamond rope.
Tying a steel wire rope and a shackle at a lifting lug or a lifting hole of the steel pipe pile, hanging the steel wire rope by a large hook of a crane ship, slowly lifting the large hook, and after tightening the steel wire rope, confirming the displacement condition of the steel pipe pile; when the steel pipe pile has obvious displacement, the residual connecting part of the steel pipe pile cutting part can be broken through repeated operations of hoisting and resetting, and then the steel pipe pile is hoisted to a transport ship for storage.
And then removing the subsequent steel pipe piles according to the process.
The invention has the following effects:
(1) According to the invention, the integrated platform is utilized to demolish the pile foundation, so that the whole steel pipe pile to be cut is positioned in the steel sleeve cage, the adverse effect of ship shaking on pile cutting operation is effectively avoided, the rope breaking risk is reduced, and the operation efficiency and safety are provided.
(2) The technology can further cut off steel pipe piles and concrete piles with different pile diameters by adjusting the steel sleeve cages and the like, the cutting-off operation depth is not limited, the operation is simple and convenient, and the applicability is wide.
(3) The technology is a linear cutting technology, namely how to realize linear cutting, for example, cutting is carried out along the cross section a little by a little, so that pollutants generated in the construction process are very few, the technology belongs to an environment-friendly technology, and the popularization value is high. In the invention, at the initial stage of cutting, a bottom positioning bolt is used for guiding the diamond rope to cut at a fixed point. After the pile body is cut, the diamond rope is always in a tightened state, and the pile body can only be cut along the horizontal direction of the diameter.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The method for underwater cutting off the steel pipe pile by the diamond rope is characterized by comprising the following steps of:
assembling the steel sleeve cage: a plurality of ring beam structures arranged at different heights are connected by using steel pipe stand columns to complete the assembly of the steel sleeve cage;
installing a steel sleeve cage: sleeving the steel reinforcement cage on the steel pipe pile to be cut by using hoisting equipment to realize temporary fixation with the steel pipe pile to be cut;
laying diamond ropes: the steel platform is arranged on the side part of the steel sleeve cage, the diamond rope on the cutting assembly on the steel platform is wound along the cutting part of the steel pipe pile to be cut and each guide wheel, and after the rest positions are fixed, the tail end of the diamond rope extends into the cutting assembly;
cutting: and starting a driving mechanism in the cutting assembly to drive the diamond rope to operate, and realizing cutting of the steel pipe pile to be cut under the action of tension and friction in operation.
2. The method for underwater cutting off the steel pipe pile by the diamond rope according to claim 1, wherein in the step of assembling the steel sleeve cage, a horizontal construction method is utilized, a square pipe is coiled into a plurality of ring beams, and the ring beams are fixed in the steel sleeve cage to form a cage-shaped structure.
3. The method for underwater cutting off the steel pipe pile by the diamond rope according to claim 1, further comprising the step of arranging a reinforcing ring beam, which specifically comprises the following steps: and a plurality of circles of reinforcing ring beams are arranged at the joint of the steel platform and the steel lantern along the outside of the steel lantern.
4. The method for underwater cutting off the steel pipe pile by the diamond rope according to claim 1, further comprising the step of assembling a guide wheel, which comprises the following specific steps: and the periphery of the steel sleeve cage is provided with a plurality of groups of guide wheel groups, and each group of guide wheel group comprises at least two guide wheels arranged along the circumferential direction of the cross section of the steel sleeve cage.
5. The method for underwater cutting of the steel pipe pile by the diamond rope according to claim 4, wherein the guide wheel sets are arranged at least at two ends and a middle position of the steel pipe pile to be cut from top to bottom, the diamond rope is wound around the two ends of the steel pipe pile to be cut and is fixed by the guide wheel sets, and the diamond rope is positioned at the middle position of the steel pipe pile to be cut along the height direction and is fixed and positioned by the guide wheel sets.
6. The method for underwater cutting off the steel pipe pile by the diamond ropes according to claim 5, wherein the diamond rope layout specifically comprises:
drawing out the diamond rope in the cutting assembly, and fixing the diamond rope after the diamond rope is wound around the top ring beam for a circle by a guide wheel on the top ring beam;
the diamond rope coming out of the top ring beam is guided by a middle guide wheel to extend to the bottom ring beam;
on the bottom ring beam, after the diamond rope winds the bottom ring beam for a circle along the guide wheel at the bottom ring beam, the diamond rope is guided to the top ring beam through the middle guide wheel again;
the diamond rope guided to the top ring beam extends into each component towards the steel platform at the side part after passing through the guide wheel.
7. The method for underwater cutting off the steel pipe pile by using the diamond ropes according to claim 5, wherein the cutting off specifically comprises the following steps: in a water area, a closed cavity is formed by using diamond beads on the diamond rope, and the driving mechanism drives the closed cavity to cut along the cutting point in a circulating manner until the cutting of the steel pipe pile to be cut is completed.
8. A cutting system for the method of underwater cutting of steel pipe piles with diamond ropes according to claims 1 to 7, comprising,
the steel pile cutting device comprises a steel platform, wherein a working surface is formed on the steel platform, a cutting assembly is arranged on the working surface, and the lowest point of the steel platform is higher than a cutting point of a steel pipe pile to be cut;
the steel platform is arranged close to the steel pipe pile to be cut off and is parallel to the steel pipe pile to be cut off;
the steel sleeve cage is arranged along the side part of the steel platform and used for sleeving a steel reinforcement cage for cutting off the steel pipe pile;
the ring beam is provided with a plurality of rings along the inner wall of the steel lantern ring and is fixedly arranged in the steel lantern ring;
the cutting assembly comprises a diamond rope and a driving mechanism for driving the diamond rope to move, the diamond rope is wound on the cutting position of the steel pipe pile to be cut through a guide wheel, and the driving mechanism drives the diamond rope to move to achieve cutting.
9. The pruning system of claim 8, wherein the guide wheels are fixed to the ring beam, from top to bottom, the guide wheels at two ends are used for fixing the diamond rope after being wound, and the guide wheel at the middle position is used for fixing the diamond rope in the arrangement and guide of the steel pipe piles to be pruned.
10. The cutting system according to claim 8, further comprising a positioning assembly for cutting the bottom of the steel pipe pile, wherein the positioning assembly forms a placement space for placing diamond ropes wound on the bottom of the steel pipe pile to be cut in the early cutting stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211617703.XA CN115748708A (en) | 2022-12-15 | 2022-12-15 | Method for underwater cutting off steel pipe pile by diamond rope and cutting-off system used for method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211617703.XA CN115748708A (en) | 2022-12-15 | 2022-12-15 | Method for underwater cutting off steel pipe pile by diamond rope and cutting-off system used for method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115748708A true CN115748708A (en) | 2023-03-07 |
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ID=85346177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211617703.XA Pending CN115748708A (en) | 2022-12-15 | 2022-12-15 | Method for underwater cutting off steel pipe pile by diamond rope and cutting-off system used for method |
Country Status (1)
| Country | Link |
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| CN (1) | CN115748708A (en) |
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2022
- 2022-12-15 CN CN202211617703.XA patent/CN115748708A/en active Pending
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