CN114960708A - River-crossing bridge pile foundation construction cofferdam structure and erection method - Google Patents
River-crossing bridge pile foundation construction cofferdam structure and erection method Download PDFInfo
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- CN114960708A CN114960708A CN202210676089.8A CN202210676089A CN114960708A CN 114960708 A CN114960708 A CN 114960708A CN 202210676089 A CN202210676089 A CN 202210676089A CN 114960708 A CN114960708 A CN 114960708A
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- 238000010276 construction Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 15
- 210000001503 joint Anatomy 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/02—Restraining of open water
- E02D19/04—Restraining of open water by coffer-dams, e.g. made of sheet piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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Abstract
The invention relates to the technical field of bridge construction equipment, in particular to a river-crossing bridge pile foundation construction cofferdam structure and a building method thereof, wherein the cofferdam structure comprises two arc-shaped plates and at least two extension supporting plates; at every arc and extension backup pad, the both sides of butt joint perps between the adjacent extension backup pad, be equipped with many pairs of supporting shoes, multirow about the supporting shoe between the different perps forms, be equipped with the spacing pipe that runs through from top to bottom on every supporting shoe, on at least one row of supporting shoe, set up a retaining ring, at the retaining ring lower surface, the position that corresponds with every spacing pipe, be equipped with a spacing post respectively, detachably sets up four at least mount pads on the retaining ring, per two mount pad symmetries set up in the retaining ring both sides, between the mount pad of symmetry, a stay tube is connected to detachably. The invention has the advantages of convenient adjustment of the whole size, good anti-seepage performance, more stable support, high flexibility, convenient processing, convenient installation and use by a user and high practicability.
Description
Technical Field
The invention relates to the technical field of bridge construction equipment, in particular to a river-crossing bridge pile foundation construction cofferdam structure and an erection method thereof.
Background
In the construction process of hydraulic engineering bridges, especially bridge pile foundations, a cofferdam structure is usually required to be built. The cofferdam structure's effect is that a protective structure is enclosed to the nature temporarily, mainly is to prevent that water from entering into the construction place, causes the puzzlement for the construction. Because mainly set up in aqueous, the cofferdam structure needs to bear certain external pressure, and is more serious under the bad circumstances of weather. In addition, most cofferdam structures need to be dismantled after construction is finished.
The supporting structure who is used for bridge cofferdam that discloses in patent CN212835452U, this a four corners of supporting structure for bridge cofferdam are equipped with the corner internal stay respectively, can consolidate the corner of enclosing the purlin, be equipped with horizontal bearing structure, vertical bearing structure can consolidate the H shaped steel of enclosing the purlin, it can consolidate horizontal bearing structure and vertical bearing structure to be equipped with the bracing, make the bridge cofferdam after the installation whole firm, the length dimension of connector can cut the adjustment according to the required distance of enclosing between the purlin, it is accurate to make the back size in succession, current bridge pile foundation construction cofferdam structure of crossing the river still has following shortcoming when using:
cofferdam structure overall structure is comparatively complicated, and its bearing structure generally adopts certain length of cutting, and then when being used as longer support, need weld the extension, and then cause the influence for user's use.
Disclosure of Invention
In order to solve the technical problems, the invention provides a river-crossing bridge pile foundation construction cofferdam structure and a building method thereof, which have the advantages of convenience in adjusting the integral supporting size, flexibility in installation, convenience in disassembly and the like, and solve the problem that the supporting size is inconvenient to adjust.
The invention is realized in such a way that firstly, the cofferdam structure for river-crossing bridge pile foundation construction is provided, and the cofferdam structure comprises two arc-shaped plates and at least two extension supporting plates, wherein the extension supporting plates are detachably connected between the two arc-shaped plates;
at every arc and extension backup pad, the both sides of butt joint perps between the adjacent extension backup pad, be equipped with many pairs of supporting shoes, multirow about the supporting shoe between the different perps forms, spacing pipe that runs through from top to bottom is equipped with on every supporting shoe, on at least one row of supporting shoe, set up a retaining ring, the retaining ring includes two at least arc blend stops, detachably connects between the arc blend stop, at the retaining ring lower surface, the position that corresponds with every spacing pipe, be equipped with a spacing post respectively, detachably sets up four at least mount pads on the retaining ring, per two mount pad symmetries set up in the retaining ring both sides, between the mount pad of symmetry, a stay tube is connected to detachably.
Preferably, each support tube comprises a first support tube, a second support tube and a third support tube, one end of the third support tube is detachably and fixedly connected with the second support tube, and the other end of the third support tube is slidably connected with the first support tube;
the first support pipe is provided with a boss, the upper surface of the boss is fixedly connected with a plurality of studs, the studs are in threaded connection with a locking nut, the third support pipe is provided with a chute, one end of the chute, which is close to the first support pipe, is provided with an opening, the section diameter of the studs is smaller than the width of the chute, and the outer diameter of the locking nut is larger than the width of the chute; the screw rod is rotatably connected inside the third supporting pipe, one end of the screw rod extends into the first supporting pipe and is rotatably connected with the first supporting pipe, the other end of the screw rod extends out of the third supporting pipe and is connected with a bevel gear at the end part, one end of the second supporting pipe, which is close to the third supporting pipe, is rotatably connected with a connecting shaft, the lower end of the connecting shaft extends into the third supporting pipe and is connected with a bevel gear, and the bevel gear at the end part of the screw rod is meshed with the bevel gear at the lower end of the connecting shaft.
Preferably, one side of the mounting seat, which is close to the supporting tube, is provided with a limiting groove, two ends of the supporting tube are respectively provided with a positioning block, the positioning block is inserted into the limiting groove, and the upper end of the positioning block is fixedly connected with the mounting seat in a detachable manner.
Further preferably, include two the arc and two the extension backup pad, the detachable connected mode between arc and the extension backup pad is: first draw-in groove has all been seted up to the both sides of extension backup pad, the both sides of arc all are provided with the first bellying with first draw-in groove matched with, and the inside of first draw-in groove all is provided with the stagnant water pad.
Further preferably, the detachable connection mode between the arc-shaped barrier strips is as follows: a second clamping groove is formed in one arc-shaped barrier strip, a second protruding portion is formed in the other arc-shaped barrier strip in butt joint, the second protruding portion is matched with the second clamping groove, and a fastening structure is arranged at the butt joint position.
Further preferably, the mounting seat is detachably connected with the retainer ring through a bolt.
Further preferably, a washer is arranged between the locking nut and the outer wall of the third supporting pipe.
Further preferably, a hand wheel is arranged at the upper end of the connecting shaft.
The invention also provides a method for erecting the river-crossing bridge pile foundation construction cofferdam structure, which comprises the following steps:
1) the two arc-shaped plates and the two extension supporting plates are hoisted and assembled, the four first protruding parts are respectively placed in the four first clamping grooves, and the end parts of the two arc-shaped plates and the two extension supporting plates are fixedly connected through fasteners;
2) the arc-shaped barrier strips of the retainer ring are respectively hoisted to the top surfaces of a row of supporting blocks, meanwhile, the limiting columns are in sliding connection with the limiting pipes at corresponding positions, the arc-shaped barrier strips are sequentially connected end to end and are fixedly connected through fasteners;
3) the mounting seat is fixedly connected with the check ring through a bolt;
4) the positioning block is fixedly connected with one end of the first supporting pipe and one end of the second supporting pipe respectively, one end of the third supporting pipe is connected with the first supporting pipe in a sliding mode, and the other end of the third supporting pipe is fixedly connected with one end of the second supporting pipe;
5) the distance between the two mounting seats is measured, the hand wheel is rotated to drive the two screw rods to rotate, the length of the first supporting pipe extending out of the third supporting pipe is adjusted, then the first supporting pipe, the second supporting pipe and the third supporting pipe are integrally hoisted, the positioning block is in sliding connection with the limiting groove in the corresponding position, and finally the positioning block is fixedly connected with the mounting seats through bolts.
Compared with the prior art, the invention has the advantages that:
1. the whole size is convenient to adjust, the support is more stable, the flexibility is high, the processing is convenient, and the installation and the use of a user are convenient;
2. the sealing performance is good, the integral anti-seepage performance is good, the disassembly and the repeated utilization are convenient, and the integral practicability is high.
Drawings
Fig. 1 is an explosion structure schematic diagram of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
FIG. 2 is a schematic assembly structure diagram of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
FIG. 3 is a schematic view of a partial structure of an extension support plate of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
FIG. 4 is a schematic structural view of an arc-shaped plate of the river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
FIG. 5 is a schematic diagram of a retaining ring structure of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
fig. 6 is an enlarged structural schematic diagram of a position a in a structure diagram 5 of a river-crossing bridge pile foundation construction cofferdam according to the invention;
FIG. 7 is a schematic view of an explosion structure of a support tube of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
fig. 8 is a schematic structural view of connection positions of a second supporting tube and a third supporting tube of the river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
fig. 9 is a schematic view of a third supporting tube structure of the river-crossing bridge pile foundation construction cofferdam structure provided by the invention;
fig. 10 is a schematic structural view of a mounting seat of a river-crossing bridge pile foundation construction cofferdam structure provided by the invention.
In the figure: 1-arc plate, 2-extension supporting plate, 3-first clamping groove, 4-first lug boss, 5-first supporting tube, 6-retainer ring, 7-second supporting tube, 8-mounting seat, 9-hand wheel, 10-positioning block, 11-limiting groove, 12-third supporting tube, 13-supporting block, 14-limiting tube, 15-water stop pad, 16-limiting column, 17-second lug boss, 18-second clamping groove, 19-connecting shaft, 20-sliding groove, 21-bevel gear, 22-lead screw, 23-boss, 24-locking nut, 25-stud and 26-washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention and the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-10, the invention provides a river-crossing bridge pile foundation construction cofferdam structure, which comprises two arc-shaped plates 1 and two extension supporting plates 2, wherein the two arc-shaped plates 1 and the two extension supporting plates 2 are sequentially connected end to end, and the two extension supporting plates 2 are symmetrically connected at two sides;
six supporting blocks 13 are fixedly connected to one side of the inner walls of the two arc-shaped plates 1 and the two extension supporting plates 2, the supporting blocks 13 are arranged in three rows from top to bottom, the middle parts of the supporting blocks 13 are connected with limiting pipes 14, the top surface of one row of supporting blocks 13 is provided with a retaining ring 6, and the outer wall of the retaining ring 6 is respectively attached to the side surfaces of the two arc-shaped plates 1 and the two extension supporting plates 2;
the upper portion of the retainer ring 6 is fixedly connected with four installation seats 8, one sides, close to the support pipes, of the four installation seats 8 are provided with limiting grooves 11, positioning blocks 10 are arranged inside the four limiting grooves 11, two of the four positioning blocks 10 form a group, a first support pipe 5, a second support pipe 7 and a third support pipe 12 are arranged between the two groups of positioning blocks 10, one ends of the two first support pipes 5 are fixedly connected with the two positioning blocks 10 respectively, one ends of the two second support pipes 7 are fixedly connected with the other two positioning blocks 10 respectively, one ends, far away from the first support pipes 5, of the two third support pipes 12 are fixedly connected with the other ends of the second support pipes 7 respectively, and the two third support pipes 12 are connected with the two first support pipes 5 in a sliding mode respectively;
the middle parts of the inner walls of the two third supporting pipes 12 are rotatably connected with screw rods 22, the two screw rods 22 are respectively in threaded connection with the first supporting pipe 5, one ends, close to the third supporting pipes 12, of the two second supporting pipes 7 are rotatably connected with connecting shafts 19, the top ends of the two connecting shafts 19 are fixedly connected with hand wheels 9, the bottom ends of the two connecting shafts 19 and the other ends of the two screw rods 22 are fixedly connected with bevel gears 21, and the four bevel gears 21 are meshed in pairs.
First draw-in groove 3 has all been seted up to the tip of two backup pads 2, and the both ends of two arcs 1 all are provided with the first bellying 4 with first draw-in groove 3 matched with, and the inside of four first draw-in grooves 3 all is provided with stagnant water pad 15, is convenient for lead two arcs 1 and two backup pads 2's installation, and stagnant water pad 15 is convenient for increase the sealing performance between two arcs 1 and two backup pads 2 simultaneously, is convenient for improve holistic waterproof ability.
The appearance of three rows of supporting blocks 13 is triangle-shaped, the side of three rows of supporting blocks 13 all through welding mode respectively with one side fixed connection of two arcs 1 and two backup pads 2, three rows of supporting blocks 13 are convenient for provide the support for the installation of retaining ring 6, three rows of distribution are in the upper and lower position of two arcs 1 and two backup pads 2 simultaneously, be convenient for through adjusting the length of two first stay tubes 5 for two third stay tubes 12, thereby be convenient for carry out the stable stay to two arcs 1 and two backup pads 2.
The bottom surface of retaining ring 6 all is provided with the spacing post 16 with a plurality of spacing pipes 14 matched with, is convenient for carry on spacingly to the installation of two retaining rings 6, and convenient to use person installs two retaining rings 6 simultaneously.
Second draw-in groove 18 has all been seted up to retaining ring 6's one end, and the other end of two retaining rings 6 all is provided with the second bellying 17 with second draw-in groove 18 matched with, and the tip of two retaining rings 6 all carries out fixed connection through the fastener, is convenient for carry on spacingly to the connection of two retaining rings 6, and the person of facilitating the use hoists the installation to two retaining rings 6 through outside lifting device.
Four mount pads 8 all through the bolt respectively with retaining ring 6 fixed connection, the person of being convenient for carries out the installation of earlier stage and the dismantlement maintenance in later stage.
The bottom of four locating pieces 10 respectively with four spacing groove 11 sliding connection, the top of four locating pieces 10 all through the bolt respectively with the side fixed connection of four mount pads 8, four locating pieces 10 through with four spacing groove 11 sliding connection to be convenient for carry on spacingly to the installation of four locating pieces 10, be convenient for support four locating pieces 10 simultaneously.
The bottom of a plurality of double-screw bolts 25 all passes through welding mode respectively with the top surface fixed connection of two bosss 23, the external diameter of a plurality of double-screw bolts 25 is less than the width of two spouts 20 respectively, a plurality of double-screw bolts 25 are respectively in the top surface linear arrangement distribution of two bosss 23, the top at two bosss 23 is fixed respectively to a plurality of double-screw bolts 25, slide in the inside of spout 20 through double-screw bolts 25, through the lock nut 24 of screwing in proper order, thereby be convenient for increase the frictional force between two first stay tubes 5 and two third stay tubes 12, thereby be convenient for realize the outrigger.
When the river-crossing bridge pile foundation construction cofferdam structure is used, the river-crossing bridge pile foundation construction cofferdam structure comprises the following steps:
1) the two arc-shaped plates 1 and the two extension supporting plates 2 are hoisted and assembled, the four first protruding parts 4 are respectively placed in the four first clamping grooves 3, and the end parts of the two arc-shaped plates 1 and the two supporting plates 2 are fixedly connected through fasteners;
2) the retainer rings 6 are respectively hoisted to the top surfaces of a row of support blocks 13, meanwhile, the eight limit columns 16 are respectively connected with the eight limit pipes 14 in a sliding mode, and the two retainer rings 6 are sequentially connected end to end and fixedly connected through fasteners;
3) the four mounting seats 8 are fixedly connected with the check ring 6 through bolts;
4) the four positioning blocks 10 are respectively fixedly connected with one ends of the two first supporting tubes 5 and one ends of the two second supporting tubes 7, the two third supporting tubes 12 are respectively connected with the two first supporting tubes 5 in a sliding manner, and meanwhile, the other ends of the two third supporting tubes 12 are respectively fixedly connected with one ends of the two second supporting tubes 7;
5) the distance between the two mounting seats 8 is measured, the two hand wheels 9 are rotated to drive the two screw rods 22 to rotate, the length of the two first supporting pipes 5 extending out of the third supporting pipe 12 is adjusted, then the two first supporting pipes 5, the two second supporting pipes 7 and the two third supporting pipes 12 are integrally hoisted, the four positioning blocks 10 are respectively in sliding connection with the four limiting grooves 11, and finally the four positioning blocks 10 are respectively fixedly connected with the four mounting seats 8 through bolts.
To sum up, the river-crossing bridge pile foundation construction cofferdam structure is respectively connected with two first supporting pipes 5 in a sliding manner through two third supporting pipes 12, the outsides of a plurality of studs 25 are all in threaded connection with locking nuts 24, gaskets 26 are arranged between the outer walls of the locking nuts 24 and the third supporting pipes 12, the bottom ends of two connecting shafts 19 and the other ends of two lead screws 22 are respectively and fixedly connected with bevel gears 21, the four bevel gears 21 are meshed in pairs, and then two hand wheels 9 are rotated to respectively drive the two lead screws 22 to rotate, so that the length of the two first supporting pipes 5 extending out of the third supporting pipes 12 is convenient to adjust, the size of the integral supporting part is convenient to adjust, and the friction force between the two first supporting pipes 5 and the two third supporting pipes 12 is convenient to increase by screwing the locking nuts 24, so that stable supporting is convenient to form, when supporting cofferdams with different sizes, the length of the first supporting pipe 5 extending out of the third supporting pipe 12 is adjusted by only rotating the hand wheel 9, thereby realizing stable supporting, meanwhile, the whole flexibility is high, the processing is convenient, the installation and the use are convenient for users, the two arc plates 1 and the two supporting plates 2 are sequentially connected end to end, the two ends of the two arc plates 1 are respectively provided with a first bulge 4 matched with the first clamping groove 3, the water stop pads 15 are respectively arranged inside the four first clamping grooves 3, after the two arc plates 1 and the two supporting plates 2 are fixedly connected by the fastening piece, the four first bulges 4 can extrude the water stop pads 15, thereby the sealing performance between the two arc plates 1 and the two supporting plates 2 is convenient to be improved, the whole anti-seepage performance is improved, meanwhile, the split type structure design is convenient for users to respectively process and manufacture the two arc plates 1 and the two supporting plates 2, meanwhile, the disassembly of the folding-up is convenient, the repeated utilization is convenient, and the overall practicability is improved.
Claims (9)
1. A river-crossing bridge pile foundation construction cofferdam structure is characterized by comprising two arc-shaped plates (1) and at least two extension supporting plates (2), wherein the extension supporting plates (2) are detachably connected between the two arc-shaped plates (1);
at every arc (1) and extension backup pad (2), the both sides of butt joint perps between adjacent extension backup pad (2), be equipped with many pairs of supporting shoe (13), multirow about supporting shoe (13) between the different perps form, spacing pipe (14) that run through from top to bottom are equipped with on every supporting shoe (13), on at least one row of supporting shoe (13), set up one retaining ring (6), retaining ring (6) include two at least arc blend stops, detachably connects between the arc blend stop, at retaining ring (6) lower surface, the position that corresponds with every spacing pipe (14), be equipped with one spacing post (16) respectively, detachably sets up four at least mount pads (8) on retaining ring (6), every two mount pad (8) symmetry set up in retaining ring (6) both sides, between the mount pad (8) of symmetry, a stay tube is connected to detachably.
2. The river-crossing bridge pile foundation construction cofferdam structure of claim 1, wherein each of the support pipes comprises a first support pipe (5), a second support pipe (7) and a third support pipe (12), one end of the third support pipe (12) is detachably and fixedly connected with the second support pipe (7), and the other end is slidably connected with the first support pipe (5);
the first support pipe (5) is provided with a boss (23), the upper surface of the boss (23) is fixedly connected with a plurality of studs (25), the studs (25) are in threaded connection with locking nuts (24), the third support pipe (12) is provided with a sliding chute (20), one end of the sliding chute (20) close to the first support pipe (5) is provided with an opening, the section diameter of each stud (25) is smaller than the width of the sliding chute (20), and the outer diameter of each locking nut (24) is larger than the width of the sliding chute (20); in the inside of third stay tube (12), it is connected with lead screw (22) to rotate, lead screw (22) one end stretches into inside and the swivelling joint of first stay tube (5), the other end stretches out third stay tube (12) and at a bevel gear (21) of end connection, the one end rotation that is close to third stay tube (12) in second stay tube (7) is connected with connecting axle (19), connecting axle (19) lower extreme stretches into in third stay tube (12) and connects a bevel gear (21), bevel gear (21) and the bevel gear meshing of connecting axle (19) lower extreme of lead screw (22) tip.
3. The river-crossing bridge pile foundation construction cofferdam structure of claim 1, wherein one side of the mounting seat (8) near the supporting pipe is provided with a limiting groove (11), two ends of the supporting pipe are respectively provided with a positioning block (10), the positioning block (10) is inserted into the limiting groove (11), and the upper end of the positioning block (10) is detachably and fixedly connected with the mounting seat (8).
4. The river-crossing bridge pile foundation construction cofferdam structure of claim 1, comprising two arc plates (1) and two extension supporting plates (2), wherein the detachable connection mode between the arc plates (1) and the extension supporting plates (2) is: first draw-in groove (3) have all been seted up to the both sides of extension backup pad (2), the both sides of arc (1) all are provided with first bellying (4) with first draw-in groove (3) matched with, and the inside of first draw-in groove (3) all is provided with stagnant water pad (15).
5. The river-crossing bridge pile foundation construction cofferdam structure of claim 1, wherein the detachable connection mode between the arc-shaped barrier strips is: a second clamping groove (18) is formed in one arc-shaped barrier strip, a second protruding portion (17) is formed in the other arc-shaped barrier strip in butt joint, the second protruding portion (17) is matched with the second clamping groove (18), and a fastening structure is arranged at the butt joint position.
6. The river-crossing bridge pile foundation construction cofferdam structure of claim 1, wherein the mounting seat (8) is detachably connected with the retainer ring (6) by bolts.
7. The river-crossing bridge pile foundation construction cofferdam structure of claim 2, wherein a washer (26) is provided between the lock nut (24) and the outer wall of the third support pipe (12).
8. The river-crossing bridge pile foundation construction cofferdam structure of claim 2, wherein the upper end of the connecting shaft (19) is provided with a hand wheel (9).
9. A method for building a river-crossing bridge pile foundation construction cofferdam structure is characterized by comprising the following steps:
1) the two arc plates (1) and the two extension supporting plates (2) are hoisted and assembled, the four first protruding parts (4) are respectively placed inside the four first clamping grooves (3), and the end parts of the two arc plates (1) and the two extension supporting plates (2) are fixedly connected through fasteners;
2) arc-shaped barrier strips of the retainer ring (6) are respectively hoisted to the top surfaces of a row of supporting blocks (13), meanwhile, the limiting columns (16) are in sliding connection with the limiting pipes (14) at corresponding positions, and the arc-shaped barrier strips are sequentially connected end to end and are fixedly connected through fasteners;
3) the mounting seat (8) is fixedly connected with the check ring (6) through a bolt;
4) the positioning block (10) is fixedly connected with one end of the first supporting pipe (5) and one end of the second supporting pipe (7) respectively, one end of the third supporting pipe (12) is connected with the first supporting pipe (5) in a sliding mode, and the other end of the third supporting pipe is fixedly connected with one end of the second supporting pipe (7);
5) the distance between the two installation seats (8) is measured, the hand wheel (9) is rotated, so that the two screw rods (22) are driven to rotate, the length of the first supporting pipe (5) extending out of the third supporting pipe (12) is adjusted, then the first supporting pipe (5), the second supporting pipe (7) and the third supporting pipe (12) are integrally hoisted, the positioning block (10) is in sliding connection with the limiting groove (11) in the corresponding position, and finally the positioning block (10) is fixedly connected with the installation seats (8) through bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210676089.8A CN114960708A (en) | 2022-06-15 | 2022-06-15 | River-crossing bridge pile foundation construction cofferdam structure and erection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210676089.8A CN114960708A (en) | 2022-06-15 | 2022-06-15 | River-crossing bridge pile foundation construction cofferdam structure and erection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290005A (en) * | 2023-05-15 | 2023-06-23 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
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|---|---|---|---|---|
| JP2000038724A (en) * | 1998-01-16 | 2000-02-08 | Nsp Corp | Shore strut support |
| CN209816887U (en) * | 2019-04-11 | 2019-12-20 | 孙秋梅 | Highway bridge construction cofferdam device |
| CN211571727U (en) * | 2019-10-24 | 2020-09-25 | 上海宝冶冶金工程有限公司 | Steel sheet pile encloses purlin supporting construction |
| CN211816344U (en) * | 2020-03-03 | 2020-10-30 | 韩方颜 | Highway bridge construction cofferdam device |
| CN213476934U (en) * | 2020-10-28 | 2021-06-18 | 熊思铭 | Highway bridge construction cofferdam device |
| CN214695657U (en) * | 2021-05-17 | 2021-11-12 | 云南利达地基建设工程有限公司 | Foundation pit supporting coaming convenient to dismantle |
| CN215669567U (en) * | 2021-09-15 | 2022-01-28 | 广东永维建设集团有限公司 | Inner supporting structure for foundation pit |
| CN113756345A (en) * | 2021-09-25 | 2021-12-07 | 聊城市交通发展有限公司 | Construction method of underwater bridge foundation |
| CN114606954A (en) * | 2022-04-20 | 2022-06-10 | 西安市第二市政工程公司 | Enclose purlin and strut |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116290005A (en) * | 2023-05-15 | 2023-06-23 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
| CN116290005B (en) * | 2023-05-15 | 2023-07-14 | 山东省路桥集团有限公司 | Highway bridge construction cofferdam device |
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