CN104452716A - Building method for scaffold used for drilling platform pile leg splicing - Google Patents
Building method for scaffold used for drilling platform pile leg splicing Download PDFInfo
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- CN104452716A CN104452716A CN201410654890.8A CN201410654890A CN104452716A CN 104452716 A CN104452716 A CN 104452716A CN 201410654890 A CN201410654890 A CN 201410654890A CN 104452716 A CN104452716 A CN 104452716A
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- bearing steel
- steel pipe
- floor
- drilling platform
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a building method for a scaffold used for drilling platform pile leg splicing. The building method for the scaffold used for drilling platform pile leg splicing includes the steps that a triangular region of drilling platform pile legs is built; a passage for the drilling platform pile legs is built; a main chord cantilevered frame of the drilling platform pile legs is built; an inner two-step frame of the drilling platform pile legs is built and is divided into an upper layer two-step frame and a lower layer two-step frame; protective railings and foot stopping plates of the drilling platform pile legs are built. The building method for the scaffold used for drilling platform pile leg splicing is high in safety and low in cost and saves time and labor, and the scaffold is easy to build.
Description
Technical field
The present invention relates to scaffold field, particularly relate to a kind of drilling platform leg pile extension scaffold building method.
Background technology
Spud leg is one of critical component in self-elevating drilling platform, the spud leg of self-elevating drilling platform is for being generally English truss formula, spud leg highest point is about 170 meters, full ship has three pile legs, and cannot integral hoisting be adopted, single spud leg must be divided into several segmentations according to factors such as crane capacities and lift, and carry out pile extension in high-altitude, when adopting this technique, must there be a pin manual task platform in the high-altitude after lifting to guarantee the connection of spud leg.Spud leg material particularly rack material is the unimach of super thick, and greatly, easily crack and be out of shape, requiring high, spud leg need coordinate with lifting mechanism and locking device, high to required precision for welding and installation difficulty.Spud leg be platform very important be also the most difficult structure, to the design of platform leg, important consideration factor during intensity.Current spud leg is divided into seven joints, and operation height during pile extension, from 19 meters to 147 meters, under such operating mode, is carried out abnormal difficult to work in everies such as welding, polishing, accuracy checkings in pile extension process.
Summary of the invention
The technical problem to be solved in the present invention is to overcome in prior art for pile legs of self-elevating drilling platform pile extension difficulty, the inconvenience of welding, polishing, accuracy checking, consume a large amount of manpower and materials, the defects such as the highly difficult and danger of work high above the ground, provide a kind of drilling platform leg pile extension scaffold building method.
The present invention solves above-mentioned technical problem by the following technical programs:
A kind of drilling platform leg pile extension scaffold building method, its feature is, it comprises the following steps:
Step 1, set up the delta-shaped region of drilling platform leg;
Step 2, set up the passage of drilling platform leg;
Step 3, set up the main chord tube suspension scaffold of drilling platform leg;
Step 4, set up the inside two step frame of drilling platform leg, described inner two step framves are divided into upper strata two step frame and lower floor two step frame;
Step 5, the guard rail setting up drilling platform leg and foot guard plate.Set up scaffold by described method easy, safety is high, and the work in every such as welding, polishing, accuracy checking in spud leg pile extension process can be made to carry out smoothly.
Preferably, described step 1 is further comprising the steps of:
Step 1.1, above main chord tube and horizontal tube, set up first floor load-bearing steel pipe;
Step 1.2, set up double joint load-bearing steel pipe (two and manage) main chord tube place, two ends side by side at every grade, vertically set up load-bearing steel pipe respectively;
Step 1.3, set up second layer load-bearing steel pipe in the below of described first floor load-bearing steel pipe;
Step 1.4, two and locate below the main chord tube of pipe two ends at every grade of described second layer load-bearing steel pipe, laterally set up load-bearing steel pipe;
Step 1.5, lay described scaffold floor in the upper horizontal of described first floor load-bearing steel pipe, reserve passway current up and down at ladder place.Described structure is first taken first floor and is made it firm, then takes the second layer and more can improve integrally-built stability and safety.
Preferably, described step 2 is further comprising the steps of:
Step 2.1, above main chord tube, set up first floor load-bearing steel pipe along main chord tube vertical direction, then set up load-bearing steel pipe along main chord tube horizontal direction;
Step 2.2, below main chord tube, set up second layer load-bearing steel pipe along main chord tube vertical direction, then set up load-bearing steel pipe along main chord tube horizontal direction;
Step 2.3, the two-layer load-bearing steel pipe set up connect with load-bearing steel pipe, be provided with framework fix at main chord tube, horizontal tube and down tube place, and part of encorbelmenting is provided with load-bearing steel pipe as diagonal brace;
Step 2.4, above second layer load-bearing steel pipe along main chord tube horizontal direction lay scaffold floor.Described mechanism sets up conveniently builder and constructs on passage.
Preferably, described step 3 is further comprising the steps of:
Step 3.1, above main chord tube by longitudinally setting up first floor load-bearing steel pipe, load-bearing steel pipe from tooth bar through and near tooth bar, by laterally setting up load-bearing steel pipe above main chord tube, be laterally connected to each other with longitudinal load-bearing steel pipe;
Step 3.2, below main chord tube by longitudinally setting up second layer load-bearing steel pipe, load-bearing steel pipe from tooth bar through and near tooth bar, by laterally setting up load-bearing steel pipe below main chord tube, be laterally connected to each other with longitudinal load-bearing steel pipe;
Step 3.3, the two-layer load-bearing steel pipe load-bearing fastener for connection set up, be provided with framework at spud leg tooth bar place and fix, and part of encorbelmenting is provided with load-bearing steel pipe as diagonal brace;
Step 3.4, the load-bearing steel pipe spud leg tooth bar outer lateral set up at first floor longitudinally lay scaffold floor to laying scaffold floor, spud leg tooth bar both sides.Described setting up makes overall structure more firm, can not be subject to large wind effect.
Preferably, described step 4 is further comprising the steps of:
Step 4.1, first set up upper strata two step frame, vertically setting up load-bearing steel pipe near spud leg tooth bar place, then setting up load-bearing steel pipe diagonal brace;
Step 4.2, longitudinally setting up load-bearing steel pipe near spud leg tooth bar place, more laterally setting up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
After step 4.3, first floor are set up, place of side longitudinally sets up load-bearing steel pipe on the first layer, and described load-bearing steel pipe through tooth bar and near tooth bar, more laterally sets up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
The first floor forward, backward place of step 4.4, described upper strata two step frame, respectively sets up load-bearing steel pipe as bridging, and described bridging is forward and reverse to be set up;
Step 4.5, laterally lay scaffold floor at first floor place, scaffold floor is laterally laid by second layer place;
Step 4.6, set up lower floor two step frame, first vertically setting up load-bearing steel pipe downwards near spud leg tooth bar place, the lower end of load-bearing steel pipe is fixed on delta-shaped region place;
Step 4.7, longitudinally setting up load-bearing steel pipe near spud leg tooth bar place, more laterally setting up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe;
After step 4.8, first floor are set up, below first floor, place longitudinally sets up load-bearing steel pipe, and described load-bearing steel pipe through tooth bar and near tooth bar, more laterally sets up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
Step 4.9, lower floor two step frame respectively set up load-bearing steel pipe as bridging at first floor and second layer forward, backward place, and described bridging is forward and reverse to be set up;
Step 4.10, at lower one deck main chord tube place, vertically downward load-bearing steel pipe is by load-bearing steel pipe, and load-bearing steel pipe is connected with main chord tube framework;
Step 4.11, laterally lay scaffold floor at first floor place, scaffold floor is laterally laid by second layer place.Described structure is set up in different aspects, to the operating platform that builder provides.
Preferably, described step 5 is further comprising the steps of:
Step 5.1, to the passage of the delta-shaped region of described drilling platform leg, described drilling platform leg, described in set up drilling platform leg main chord tube suspension scaffold set up three sections of guard rails;
Step 5.2, set up railing post;
Step 5.3, inner two step frame the upper and lower set up two sections of guard rails, and described guard rail is set up by load-bearing steel pipe, and it is outside to stretch out spud leg tooth bar;
After step 5.4, described guard rail are set up, bottom each area protection railing, install foot guard plate additional.The protective guard of highest point is the highest, prevents builder from dropping, and has ensured the safety of builder.
Preferably, described step also comprises step 6, removes described drilling platform leg pile extension scaffold, and described step 6 is further comprising the steps of:
Step 6.1, first remove described inner two step framves, first remove lower floor two step frame from bottom to top, then remove upper strata two step frame from top to bottom;
Step 6.2, remove described main chord tube suspension scaffold, ecto-entad is removed;
Step 6.3, first dismounting without vertical ladder delta-shaped region, then remove passage;
Step 6.4, again dismounting have vertical ladder delta-shaped region;
Oppositely removing by setting up order during dismounting, from top to bottom, ecto-entad, first removing foot guard plate, remove guard rail again, remove scaffold floor again, finally remove support body.Described dismounting mode is easy, smooth and easy, and mode of removing is safe and reliable.
Preferably, described scaffold floor two ends separately and load-bearing steel pipe be fixed, interfix between plate and plate.Affiliated structure is more firmly stable.
Preferably, wherein said vertical, longitudinally set up the upper end of load-bearing steel pipe and the planes align of described scaffold floor.Described structure saves material, attractive in appearance, can't cause the long route blocking the constructions such as passway of load-bearing steel pipe.
Preferably, drilling platform leg is divided into some segmentations, and each segmentation is provided with three pieces of passages, and take in advance in the offshore boring island stage before drilling platform leg lifting, the welding requirements according to down tube after drilling platform leg pile extension is set up again.Described setting up is set up from three angle distributions, can not cause the wasting of resources, saving of work and time.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can be combined, obtain the preferred embodiments of the invention.
Positive progressive effect of the present invention is: have devised a set of perfect, safe drilling platform leg pile extension scaffold building method, meets carrying out smoothly of the work in every such as welding, polishing, accuracy checking in spud leg pile extension process.For the design feature of spud leg zones of different, drilling platform leg pile extension scaffold building method subregion is designed, and calculate according to loading demands during job execution, bearing capacity is large, and stress performance is good, strong adaptability, installation, convenient disassembly, set up flexibly, saving of work and time, safety is high, and cost is low.
Accompanying drawing explanation
Fig. 1 is the flow chart of the drilling platform leg pile extension scaffold building method of present pre-ferred embodiments.
Fig. 2 is the flow chart setting up delta-shaped region order of present pre-ferred embodiments.
Fig. 3 is the flow chart setting up channel sequence of present pre-ferred embodiments.
Fig. 4 is the flow chart setting up main chord tube suspension scaffold order of present pre-ferred embodiments.
Fig. 5 is the flow chart setting up upper strata two step frame order of present pre-ferred embodiments.
Fig. 6 is the flow chart setting up lower floor two step frame order of present pre-ferred embodiments.
Fig. 7 is the flow chart setting up guard rail and foot guard plate order of present pre-ferred embodiments.
Fig. 8 is the flow chart of the dismounting scaffold order of present pre-ferred embodiments.
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
Embodiment
The order set up is set up for setting up time-division four pieces of regions, step 100, set up delta-shaped region, again step 200, set up passage, then step 300, set up main chord tube suspension scaffold, then step 500, set up inner two step framves (upper strata two step frame and lower floor two step frame), final step 600, set up guard rail and foot guard plate.
Step 100, set up delta-shaped region, further comprising the steps of:
Step 101, elder generation set up first floor load-bearing steel pipe above main chord tube and horizontal tube, be that starting point sets up first 6m load-bearing steel pipe with horizontal tube, then 3 6m load-bearing steel pipes, 2 4.5m load-bearing steel pipes, 2 3.6m load-bearing steel pipes, 1 3m load-bearing steel pipe, 1 2.5m load-bearing steel pipe, 2 1.2m load-bearing steel pipes, 2 2.5m load-bearing steel pipes are set up respectively by spacing 400mm from left to right along horizontal tube direction, wherein set up double joint load-bearing steel pipe (two and manage) side by side, be respectively 2 6m load-bearing steel pipes, 1 3.6m load-bearing steel pipe, 3 2.5m load-bearing steel pipes.
Step 102, at every grade of two and main chord tube place, pipe two ends, vertically set up 2 1.2m load-bearing steel pipes respectively.
Step 103, below first floor load-bearing steel pipe, set up second layer load-bearing steel pipe, when setting up, first in the middle of delta-shaped region, set up 1 3.6m load-bearing steel pipe by longitudinal, set up 2 4.5m load-bearing steel pipes, 2 3.6m load-bearing steel pipes, 2 2m load-bearing steel pipes respectively along the both sides being parallel to main chord tube again, notice that 7 load-bearing steel pipes should not stretch out horizontal tube marginal excess.
Step 104, two and locate below the main chord tube of pipe two ends at every grade, laterally set up 1 1.2m load-bearing steel pipe as lower beam of riding respectively, and carry out framework with the 1.2m load-bearing steel pipe vertically set up and be connected and fix, wherein 1.2m load-bearing steel pipe that is vertical and below transverse direction should be close to main chord tube.
Step 105, first floor load-bearing steel pipe upper horizontal lay scaffold floor, passway current is up and down reserved at ladder place, all scaffold floor two ends all should separately and load-bearing steel pipe carry out colligation and fix, and colligation number of times should not be less than 2 times, also should be fixed by the mutual colligation of tied silk between plate and plate, and all tied silks should be carried out colligation through eyelet on scaffold floor and fixed.
Vertical load-bearing steel pipe is set up rear upper end and should be flushed with scaffold floor face as far as possible, is no more than scaffold floor face 50mm at the most, and the end portion exceeding scaffold floor face should carry out protection.
Step 200, set up passage, further comprising the steps of:
Lay load-bearing steel pipe when step 201, passage place set up and be divided into 2 layers, after three pieces of delta-shaped regions are set up, first above main chord tube, lay first floor 2 2m load-bearing steel pipes along main chord tube vertical direction, then lay 2 2.5m load-bearing steel pipes along main chord tube horizontal direction.
Step 202, the second layer require to set up below main chord tube with first floor.
Step 203, two-layer load-bearing steel pipe 1.2m load-bearing steel pipe connect, and carry out framework at main chord tube, horizontal tube and down tube place and fix, and part of encorbelmenting must increase 1.2m load-bearing steel pipe as diagonal brace.
Step 204, above second layer load-bearing steel pipe, lay 4 pieces of scaffold floors respectively along main chord tube horizontal direction, all scaffold floor two ends all should separately and load-bearing steel pipe carry out colligation and fix, and colligation number of times should not be less than 2 times, also should be fixed by the mutual colligation of tied silk between plate and plate, and all tied silks should be carried out colligation through eyelet on scaffold floor and fixed.
Vertical load-bearing steel pipe is set up rear upper end and should be flushed with scaffold floor face as far as possible, is no more than scaffold floor face 50mm at the most, and the end portion exceeding scaffold floor face should carry out protection.
Step 300, set up main chord tube suspension scaffold, further comprising the steps of:
Lay load-bearing steel pipe when step 301, main chord tube suspension scaffold are set up and be divided into 2 layers, first floor first sets up 2 3.6m load-bearing steel pipes and 2 4.5m load-bearing steel pipes by longitudinal above main chord tube, wherein, 2 3.6m load-bearing steel pipes pass from tooth bar and are close to tooth bar as far as possible, then by laterally setting up 2 2.5m load-bearing steel pipes, and spud leg tooth bar should be close to as much as possible by the load-bearing steel pipe at spud leg tooth bar place, be laterally interconnected with longitudinal load-bearing steel pipe.
Step 302, the second layer require to set up below main chord tube with first floor, require identical with first floor.
Step 303, two-layer load-bearing steel pipe 1.2m load-bearing steel pipe connect, and carry out framework at spud leg tooth bar place and fix, and part of encorbelmenting must increase 1.2m load-bearing steel pipe as diagonal brace.
Step 304, longitudinally lay 2 pieces of scaffold floors respectively in first floor load-bearing steel pipe spud leg tooth bar outer lateral to laying 2 pieces of scaffold floors, spud leg tooth bar both sides, all scaffold floor two ends all should separately and load-bearing steel pipe carry out colligation and fix, and colligation number of times should not be less than 2 times, also should be fixed by the mutual colligation of tied silk between plate and plate, and all tied silks should be carried out colligation through eyelet on scaffold floor and fixed.
Vertical load-bearing steel pipe is set up rear upper end and should be flushed with scaffold floor face as far as possible, is no more than scaffold floor face 50mm at the most, and the end portion exceeding scaffold floor face should carry out protection.
Step 500, set up inner two step framves, further comprising the steps of:
Inner two step framves for boundary with delta-shaped region scaffold, are divided into upper strata two step frame and lower floor two step frame, first set up upper strata two step frame when setting up, set up lower floor two step frame after setting up.
Upper strata two step frame:
Upper strata two step frame is set up after next segmental hoisting, and the materials application tied silk set up needed for support body shifts to an earlier date colligation in delta-shaped region, notices that material should not exceed segmented edges and uniform placement.
Step 501, elder generation are vertically setting up 2 4.5m load-bearing steel pipes near spud leg tooth bar place, 4.5m load-bearing steel pipe lower end should be fixed on delta-shaped region position, then interval 800mm vertically sets up 2 4.5m load-bearing steel pipes again, last at 1200mm place increase by 2 4.5m load-bearing steel pipe diagonal braces, diagonal brace should be connected with first floor and second layer support body.
Step 502, longitudinally set up 2 3m load-bearing steel pipes at 1500mm place, 2 3m load-bearing steel pipes should through tooth bar and as far as possible near tooth bar, then laterally 4 2m load-bearing steel pipes are set up, and the outside 2 2m load-bearing steel pipes of spud leg tooth bar should be set up respectively above and below longitudinal 3m load-bearing steel pipe, and be fixed near spud leg.
After step 503, first floor are set up, square 1800mm place longitudinally sets up 2 2.5m load-bearing steel pipes on the first layer, 2 2.5m load-bearing steel pipes should through tooth bar and as far as possible near tooth bar, then laterally 4 2m load-bearing steel pipes are set up, and the outside 2 2.m load-bearing steel pipes of spud leg tooth bar should be set up respectively above and below longitudinal 2.5m load-bearing steel pipe, and be fixed near spud leg.
Step 504, before and after the first floor of upper strata two step frame to place, respectively should set up 1 2.5m load-bearing steel pipe as bridging, bridging should forward and reversely to be set up.
Step 505, laterally lay 3 pieces of scaffold floors at first floor place, 3 pieces of scaffold floors are laterally laid by second layer place, all scaffold floor two ends all should separately and load-bearing steel pipe carry out colligation and fix, and colligation number of times should not be less than 2 times, also should be fixed by the mutual colligation of tied silk between plate and plate, and all tied silks should be carried out colligation through eyelet on scaffold floor and fixed.
Lower floor two step frame:
Step 507, elder generation are vertically setting up 2 4.5 meters of load-bearing steel pipes downwards near spud leg tooth bar place, and 4.5 meters of load-bearing steel pipe lower ends should be fixed on delta-shaped region position, and then interval 800mm vertically sets up 2 4.5 meters of load-bearing steel pipes downwards again.
Step 508, longitudinally set up 2 2.5 meters of load-bearing steel pipes at 1800mm place, 2 2.5 meters of load-bearing steel pipes should through tooth bar and as far as possible near tooth bar, then laterally 42 meters of load-bearing steel pipes are set up, and the outside 22 meters of load-bearing steel pipes of spud leg tooth bar should be set up respectively above and below longitudinal 2.5 meters of load-bearing steel pipes, and be fixed near spud leg.
After step 509, first floor are set up, below first floor, 1800mm place longitudinally sets up 2 2.5 meters of load-bearing steel pipes, 2 2.5 meters of load-bearing steel pipes should through tooth bar and as far as possible near tooth bar, then laterally 42 meters of load-bearing steel pipes are set up, and the outside 2 2. meters of load-bearing steel pipes of spud leg tooth bar should be set up respectively above and below longitudinal 2.5 meters of load-bearing steel pipes, and be fixed near spud leg.
Step 510, lower floor two step frame all should respectively set up 1 2.5m load-bearing steel pipe as bridging to place before and after first floor and the second layer, and bridging should forward and reversely be set up.
Step 511, at lower one deck main chord tube place, 4 vertically downward 4.5m load-bearing steel pipes should be connected with main chord tube framework by 4 2m load-bearing steel pipes and 4 1.2m load-bearing steel pipes and fix, and the load-bearing steel pipe be connected and fixed for framework should be arranged up and down and be close to main chord tube.
Step 512, laterally lay 3 pieces of scaffold floors at first floor place, 3 pieces of scaffold floors are laterally laid by second layer place, all scaffold floor two ends all should separately and load-bearing steel pipe carry out colligation and fix, and colligation number of times should not be less than 2 times, also should be fixed by the mutual colligation of tied silk between plate and plate, and all tied silks should be carried out colligation through eyelet on scaffold floor and fixed.
Step 600, set up guard rail and foot guard plate, further comprising the steps of:
Step 601, except inner two step framves, three sections of guard rails all should be set up in its excess-three region, first paragraph guard rail height 500mm, second segment guard rail height 1000mm, the 3rd section of guard rail height 1500mm.
Step 602, after three region support bodys are set up, set up railing post by spacing 2000mm.
Step 603, inner two step frame upper stratas and lower floor all should set up two sections of guard rails respectively, first paragraph guard rail height 500mm, second segment guard rail height 1000mm, 4 2.5m load-bearing steel pipes should be used when guard rail is set up, and it is outside to stretch out spud leg tooth bar, and be fixed near spud leg with 2 2m load-bearing steel pipes.
After step 604, guard rail are set up, should by installing foot guard plate additional on request bottom four area protection railings, foot guard plate colligation requires same scaffold floor.
When setting up the stage, take in advance in platform phase before spud leg lifting, the welding requirements according to down tube after spud leg pile extension is set up again.Set up mode in a manner described fast and convenient, easy to maintenance, ensure that safety, cost is low, and can carry out the work smoothly on scaffold, removes simultaneously and also facilitates rapidly.
Dismantle processes and order:
Remove scaffold after all spud leg pile extensions, dismounting order for first removing inner two step framves (up/down), removing main chord tube suspension scaffold again, removing without vertical ladder delta-shaped region, then removes passage, and finally removing has vertical ladder delta-shaped region.Oppositely should remove by order when setting up during dismounting, from top to bottom, ecto-entad removes, and first tears foot guard plate open, removes anti-skidding railing again, removes scaffold floor again, finally removes support body.
Each region scaffold dismounting order:
Step 701, inner two step framves: first remove lower floor two step frame from bottom to top, then remove upper strata two step frame from top to bottom.
Step 702, main chord tube suspension scaffold: ecto-entad is removed.
Step 703, passage: first remove connection two pieces of passages without vertical ladder delta-shaped region place, after removing without vertical ladder delta-shaped region, then remove the passage being connected with vertical ladder delta-shaped region.
Step 704, delta-shaped region: first remove without vertical ladder delta-shaped region when delta-shaped region is removed, then dismounting has vertical ladder delta-shaped region.When removing without vertical ladder delta-shaped region, first the load-bearing steel pipe being less than 3.6m is removed, then removed the load-bearing steel pipe being greater than 3.6m by cotton cord.First remove the load-bearing steel pipe being greater than 3.6m when having vertical ladder delta-shaped region to remove, then remove the load-bearing steel pipe being less than 3.6m.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (10)
1. a drilling platform leg pile extension scaffold building method, it is characterized in that, it comprises the following steps:
Step 1, set up the delta-shaped region of drilling platform leg;
Step 2, set up the passage of drilling platform leg;
Step 3, set up the main chord tube suspension scaffold of drilling platform leg;
Step 4, set up the inside two step frame of drilling platform leg, described inner two step framves are divided into upper strata two step frame and lower floor two step frame;
Step 5, the guard rail setting up drilling platform leg and foot guard plate.
2. drilling platform leg pile extension scaffold building method as claimed in claim 1, it is characterized in that, described step 1 is further comprising the steps of:
Step 1.1, above main chord tube and horizontal tube, set up first floor load-bearing steel pipe;
Step 1.2, set up double joint load-bearing steel pipe (two and manage) main chord tube place, two ends side by side at every grade, vertically set up load-bearing steel pipe respectively;
Step 1.3, set up second layer load-bearing steel pipe in the below of described first floor load-bearing steel pipe;
Step 1.4, two and locate below the main chord tube of pipe two ends at every grade of described second layer load-bearing steel pipe, laterally set up load-bearing steel pipe;
Step 1.5, lay described scaffold floor in the upper horizontal of described first floor load-bearing steel pipe, reserve passway current up and down at ladder place.
3. drilling platform leg pile extension scaffold building method as claimed in claim 2, it is characterized in that, described step 2 is further comprising the steps of:
Step 2.1, above main chord tube, set up first floor load-bearing steel pipe along main chord tube vertical direction, then set up load-bearing steel pipe along main chord tube horizontal direction;
Step 2.2, below main chord tube, set up second layer load-bearing steel pipe along main chord tube vertical direction, then set up load-bearing steel pipe along main chord tube horizontal direction;
Step 2.3, the two-layer load-bearing steel pipe set up connect with load-bearing steel pipe, be provided with framework fix at main chord tube, horizontal tube and down tube place, and part of encorbelmenting is provided with load-bearing steel pipe as diagonal brace;
Step 2.4, above second layer load-bearing steel pipe along main chord tube horizontal direction lay scaffold floor.
4. drilling platform leg pile extension scaffold building method as claimed in claim 3, it is characterized in that, described step 3 is further comprising the steps of:
Step 3.1, above main chord tube by longitudinally setting up first floor load-bearing steel pipe, load-bearing steel pipe from tooth bar through and near tooth bar, by laterally setting up load-bearing steel pipe above main chord tube, be laterally connected to each other with longitudinal load-bearing steel pipe;
Step 3.2, below main chord tube by longitudinally setting up second layer load-bearing steel pipe, load-bearing steel pipe from tooth bar through and near tooth bar, by laterally setting up load-bearing steel pipe below main chord tube, be laterally connected to each other with longitudinal load-bearing steel pipe;
Step 3.3, the two-layer load-bearing steel pipe load-bearing fastener for connection set up, be provided with framework at spud leg tooth bar place and fix, and part of encorbelmenting is provided with load-bearing steel pipe as diagonal brace;
Step 3.4, the load-bearing steel pipe spud leg tooth bar outer lateral set up at first floor longitudinally lay scaffold floor to laying scaffold floor, spud leg tooth bar both sides.
5. drilling platform leg pile extension scaffold building method as claimed in claim 4, it is characterized in that, described step 4 is further comprising the steps of:
Step 4.1, first set up upper strata two step frame, vertically setting up load-bearing steel pipe near spud leg tooth bar place, then setting up load-bearing steel pipe diagonal brace;
Step 4.2, longitudinally setting up load-bearing steel pipe near spud leg tooth bar place, more laterally setting up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
After step 4.3, first floor are set up, place of side longitudinally sets up load-bearing steel pipe on the first layer, and described load-bearing steel pipe through tooth bar and near tooth bar, more laterally sets up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
The first floor forward, backward place of step 4.4, described upper strata two step frame, respectively sets up load-bearing steel pipe as bridging, and described bridging is forward and reverse to be set up;
Step 4.5, laterally lay scaffold floor at first floor place, scaffold floor is laterally laid by second layer place;
Step 4.6, set up lower floor two step frame, first vertically setting up load-bearing steel pipe downwards near spud leg tooth bar place, the lower end of load-bearing steel pipe is fixed on delta-shaped region place;
Step 4.7, longitudinally setting up load-bearing steel pipe near spud leg tooth bar place, more laterally setting up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe;
After step 4.8, first floor are set up, below first floor, place longitudinally sets up load-bearing steel pipe, and described load-bearing steel pipe through tooth bar and near tooth bar, more laterally sets up load-bearing steel pipe, and the outside load-bearing steel pipe of spud leg tooth bar is set up above and below longitudinal load-bearing steel pipe, and near spud leg;
Step 4.9, lower floor two step frame respectively set up load-bearing steel pipe as bridging at first floor and second layer forward, backward place, and described bridging is forward and reverse to be set up;
Step 4.10, at lower one deck main chord tube place, vertically downward load-bearing steel pipe is by load-bearing steel pipe, and load-bearing steel pipe is connected with main chord tube framework;
Step 4.11, laterally lay scaffold floor at first floor place, scaffold floor is laterally laid by second layer place.
6. drilling platform leg pile extension scaffold building method as claimed in claim 5, it is characterized in that, described step 5 is further comprising the steps of:
Step 5.1, to the passage of the delta-shaped region of described drilling platform leg, described drilling platform leg, described in set up drilling platform leg main chord tube suspension scaffold set up three sections of guard rails;
Step 5.2, set up railing post;
Step 5.3, inner two step frame the upper and lower set up two sections of guard rails, and described guard rail is set up by load-bearing steel pipe, and it is outside to stretch out spud leg tooth bar;
After step 5.4, described guard rail are set up, bottom each area protection railing, install foot guard plate additional.
7. drilling platform leg pile extension scaffold building method as claimed in claim 6, it is characterized in that, described step also comprises step 6, removes described drilling platform leg pile extension scaffold, and described step 6 is further comprising the steps of:
Step 6.1, first remove described inner two step framves, first remove lower floor two step frame from bottom to top, then remove upper strata two step frame from top to bottom;
Step 6.2, remove described main chord tube suspension scaffold, ecto-entad is removed;
Step 6.3, first dismounting without vertical ladder delta-shaped region, then remove passage;
Step 6.4, again dismounting have vertical ladder delta-shaped region;
Oppositely removing by setting up order during dismounting, from top to bottom, ecto-entad, first removing foot guard plate, remove guard rail again, remove scaffold floor again, finally remove support body.
8. drilling platform leg pile extension scaffold building method as claimed in claim 7, is characterized in that, described scaffold floor two ends separately and load-bearing steel pipe be fixed, interfix between plate and plate.
9. drilling platform leg pile extension scaffold building method as claimed in claim 8, is characterized in that, wherein said vertical, longitudinally set up the upper end of load-bearing steel pipe and the planes align of described scaffold floor.
10. drilling platform leg pile extension scaffold building method as claimed in claim 9, it is characterized in that, drilling platform leg is divided into some segmentations, each segmentation is provided with three pieces of passages, take in advance in the offshore boring island stage before drilling platform leg lifting, the welding requirements according to down tube after drilling platform leg pile extension is set up again.
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| CN106192960A (en) * | 2016-07-27 | 2016-12-07 | 金海重工（舟山）设计研究院有限公司 | A kind of method of construction of offshore platform |
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| CN104452716B (en) | 2016-04-27 |
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