CN114134813B - Construction method of adjacent existing high-speed vase type pier column protection system - Google Patents
Construction method of adjacent existing high-speed vase type pier column protection system Download PDFInfo
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- CN114134813B CN114134813B CN202111264463.5A CN202111264463A CN114134813B CN 114134813 B CN114134813 B CN 114134813B CN 202111264463 A CN202111264463 A CN 202111264463A CN 114134813 B CN114134813 B CN 114134813B
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- 238000010276 construction Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 claims abstract description 35
- 241000282326 Felis catus Species 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 230000002787 reinforcement Effects 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 7
- 230000001680 brushing effect Effects 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000009194 climbing Effects 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method for abutting an existing high-speed vase type pier stud protection system, which comprises the steps of installing a main body part of a construction platform on a template, and hoisting the first three templates of the main body part of the construction platform by using an automobile crane. And (3) assembling the protection system and the cat ladder system on the construction platform, installing a pedestrian passageway between the construction platform on the uppermost layer and the top of the cat ladder system, and pouring the front three sections of pier stud concrete. Removing the protection system and the first two-section template on the pedestrian passageway and the uppermost construction platform, installing the protection system on the fourth five-section template and the fifth section template, heightening the ladder stand system, installing the pedestrian passageway and pouring concrete. And repeating the steps until the pier body concrete pouring is completed. The last section of pier body template is reserved, a main body component pier cap template of a construction platform and a protection system on the pier cap template are installed, a climbing ladder system is heightened, a pedestrian passageway is installed, and concrete is poured. By adopting the method, the construction cost is reduced, and the construction quality is improved.
Description
Technical Field
The invention relates to pier stud construction and protection methods, in particular to a pier stud protection system adjacent to the existing high-speed vase type pier stud and a construction method.
Background
With the rapid development of traffic industry in China, the dynamics of China in the aspect of traffic foundation network construction is continuously increasing, highway networks are continuously becoming dense, various different traffic networks play chess, the bridge spans the existing high speed and railways more and more, and the pier stud is inevitably positioned on or adjacent to the existing high speed slope protection in the design. In the pier column construction process, the construction quality and the construction safety are ensured, the construction progress is quickened, and the influence on the existing traffic is reduced, so that the key of the high-speed construction is that.
The invention patent with the application number of CN202011397243.5 discloses a high pier hydraulic jacking integral steel frame platform turnover formwork construction system and a construction method, wherein the construction system comprises a hydraulic jacking system, a steel frame platform system, a formwork and a formwork lifting system. The method has good effect in the construction process of the high pier, but has poor construction effect on the pier with the height of less than 25 meters, especially when the pier is adjacent to the existing high speed. On the one hand, the pier column is low in height, and if the construction method is adopted, the economic benefit is low, meanwhile, the installation time of the construction system is long, and the influence period on the existing high speed is increased.
Disclosure of Invention
The invention aims to solve the problems of small construction surface and high safety requirement in the construction of the pier stud on or adjacent to the existing high-speed slope protection, and provides a construction method adjacent to the existing high-speed vase type pier stud protection system, which is simple in construction process, safe, reliable and easy to operate.
The invention discloses a construction method for an existing high-speed vase type pier stud protection system, which comprises the following steps:
step one, respectively encircling and fixing main body parts of one construction platform on a first section of template, a second section of template and a third section of template, wherein the specific installation process of the main body parts of each construction platform is as follows:
the inner ends of a plurality of support cross rods arranged along the horizontal direction are fixedly connected with connecting plates welded on the templates at corresponding positions along the circumferential direction of each section of template, a support diagonal brace is arranged below each support cross rod, the lower end of each support diagonal brace is fixedly connected with the connecting plates welded on the templates at the corresponding positions, and the outer end of each support cross rod and the upper end of one support diagonal brace below the support cross rod are fixedly connected with the lower part of a support vertical rod arranged along the vertical direction;
hoisting and fixing the pier column reinforcement cage on the bearing platform reinforcement embedded bars, and hoisting a first section of template, a second section of template and a third section of template of the main body part of the construction platform by using an automobile crane after the bearing platform concrete strength reaches the requirement; a first section of template, a second section of template and a third section of template are sequentially installed on the circumferential direction of the outer wall of the pier column reinforcement cage from bottom to top, wherein the upper section of template is supported on the lower section of template and fixedly connected through bolts;
step three, fixing a plurality of steel bar cross bars on a plurality of support vertical rods of each construction platform at intervals along the horizontal direction; paving a wood board steel wire mesh on a bracket cross bar of the uppermost construction platform, and binding the steel wire mesh on a bracket vertical bar to form a protection system;
step four, assembling a frame type safety ladder cage, wherein the concrete process is as follows:
the multi-section frame type safety ladder cages which are transported to the construction site after the factory processing is finished are fixedly connected up and down through bolts, ladder stand structures are respectively arranged in each section of frame type safety ladder cage, the ladder stand structures in the two sections of frame type safety ladder cages which are connected up and down are connected with each other, and ladder cage protection meshes are respectively fixed at four wall positions of each section of frame type safety ladder cage;
step five, installing a pedestrian passageway between the uppermost construction platform and the top of the cat ladder system;
step six, coating release agents on the inner walls of the first section of template, the second section of template and the third section of template, and then pouring concrete in the first section of template, the second section of template and the third section of template;
step seven, after the concrete strength reaches the design requirement, dismantling wood boards, a first section of templates and a second section of templates paved on the support cross bars of the pedestrian passageway and the uppermost construction platform, and reserving a third section of templates;
step eight, polishing the removed first section and second section templates and brushing a release agent on the inner wall; then hoisting the first section of template to a fourth section of template position above the third section of template by a crane, supporting the first section of template serving as the fourth section of template on the third section of template and adopting bolt connection between the first section of template and the third section of template, moving the second section of template serving as the fifth section of template to a fifth section of template position above the fourth section of template position, and supporting the fifth section of template on the fourth section of template and adopting bolt connection between the fifth section of template and the fourth section of template;
step nine, completing the assembly of a construction platform by adopting a method of the step three at the position of a fifth section of template, hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage of the step four, connecting and fixing, and then installing a pedestrian passageway between the construction platform at the uppermost layer and the top of the new frame type safety ladder cage according to the method of the step five;
step ten, repeatedly adopting the method from the step six to the step nine until pier body construction is completed;
step eleven, reserving the uppermost section of template, and removing the rest sections of templates;
step twelve, polishing the pier cap template and brushing a release agent on the inner wall, then hoisting the pier cap template, cleaning up the upper and lower butt joint surfaces of the pier cap template and the reserved uppermost template, adding a pad slurry-stopping adhesive tape, then butt-jointing and fixing, and finally completing the assembly of a construction platform at the pier cap template by adopting the method of the step three;
step thirteen, hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage, connecting and fixing, and then installing a pedestrian passageway between the uppermost construction platform and the top of the new frame type safety ladder cage according to the method of the step five;
and fourteen, pouring concrete in the pier cap template.
The beneficial effects of the invention are as follows: the method can effectively solve the problems of small construction working surface, high safety requirement and long influence time on the existing traffic in the construction process of the pier stud on or adjacent to the existing high-speed slope protection, and has the advantages of simple construction process, safety, reliability and easy operation. The method has the advantages of saving material cost, shortening construction period, improving construction quality, reducing construction cost, effectively shortening high-altitude operation time, improving construction safety, and effectively reducing the influence on the existing high speed to the minimum.
Drawings
FIG. 1 is a schematic diagram of a pier shaft cross-sectional stent layout;
FIG. 2 is a schematic diagram of an abutment shield system;
FIG. 3 is a schematic view of a frame type safety ladder cage;
fig. 4 is an enlarged schematic view of the front of the frame type safety ladder cage.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
As shown in fig. 1 to 4, a construction method of the present invention for abutting an existing high-speed vase type pier stud protection system includes the steps of:
step one, respectively encircling and fixing main body parts of one construction platform on a first section of template 1, a second section of template and a third section of template, wherein the specific installation process of the main body parts of each construction platform is as follows:
the inner ends of a plurality of support cross rods 2 arranged along the horizontal direction are fixedly connected with a connecting plate 6 welded on the template at the corresponding position along the circumferential direction of each section of template, a support diagonal brace 5 is arranged below each support cross rod 2, the lower end of each support diagonal brace 5 is fixedly connected with the connecting plate 6 welded on the template at the corresponding position, and the outer end of each support cross rod 2 and the upper end of one support diagonal brace 5 below the support cross rod 2 are fixedly connected with the lower part of a support vertical rod 3 arranged along the vertical direction;
hoisting and fixing the pier column reinforcement cage on the bearing platform reinforcement embedded bars, and hoisting a first section of template, a second section of template and a third section of template of the main body part of the construction platform by using an automobile crane after the bearing platform concrete strength reaches the requirement; a first section of template, a second section of template and a third section of template are sequentially installed on the circumferential direction of the outer wall of the pier column reinforcement cage from bottom to top, wherein the upper section of template is supported on the lower section of template and fixedly connected through bolts;
step three, a plurality of reinforcing steel bar cross bars 9 are fixed on a plurality of support vertical bars 3 of each construction platform at intervals up and down along the horizontal direction, and for convenience in connection, two ends of each reinforcing steel bar cross bar 9 can be in plug connection with the support vertical bars 3 of the end part through preformed holes (the diameter can be 3 cm) on the support vertical bars of the platform. And lay plank 7 wire net 8 on the support horizontal pole 2 of the construction platform of the upper strata, use the wire lashing wire net to form the protection system on the support montant 3.
Step four, assembling a frame type safety ladder cage, wherein the concrete process is as follows:
and (3) fixedly connecting the multi-section frame type safety ladder cage which is transported to a construction site after the factory processing is finished up and down through bolts. And each frame type safety ladder cage is respectively provided with a cat ladder structure. The cat ladder structures in the two sections of frame type safety ladder cages which are connected up and down are connected with each other, the height of each section of frame type safety ladder cage is two meters, and ladder cage protection meshes are respectively fixed at the four wall positions of each section of frame type safety ladder cage.
Step five, installing a pedestrian passageway between the uppermost construction platform and the top of the cat ladder system;
as an embodiment of the present invention, the specific process is:
firstly, paving a channel plank 18 between a framework cross bar 10 of the uppermost section of framework type safety ladder cage and a bracket cross bar 2 of the uppermost construction platform;
the second step, two front and rear rows of guardrail steel pipes 19 are respectively arranged on the front side and the rear side of the channel wood board 18, each row of guardrail steel pipes 19 comprises a plurality of guardrail steel pipes arranged along the horizontal direction, one end of each guardrail steel pipe is fixedly connected with the framework vertical rod 11 of the uppermost one-section framework type safety ladder cage of the ladder stand system, and the other end of each guardrail steel pipe is fixedly connected with the support vertical rod 3 of one uppermost platform;
thirdly, connecting a protective rail on the outer wall of each row of guardrail steel pipes 19 along the horizontal direction and fixing a dense mesh net 20 to prevent falling;
step six, coating release agents on the inner walls of the first section of template, the second section of template and the third section of template, and then pouring concrete in the first section of template, the second section of template and the third section of template;
step seven, after the concrete strength reaches the design requirement, dismantling wood boards, a first section of templates and a second section of templates paved on the support cross bars of the pedestrian passageway and the uppermost construction platform, and reserving a third section of templates;
step eight, polishing the removed first section and second section templates and brushing a release agent on the inner wall; then hoisting the first section of template to a fourth section of template position above the third section of template by a crane, supporting the first section of template serving as the fourth section of template on the third section of template and adopting bolt connection between the first section of template and the third section of template, moving the second section of template serving as the fifth section of template to a fifth section of template position above the fourth section of template position, and supporting the fifth section of template on the fourth section of template and adopting bolt connection between the fifth section of template and the fourth section of template; preferably, when the templates are installed in the step, the butt joint surfaces of the upper and lower templates are cleaned up, and a grouting stop adhesive tape is added;
and step nine, completing the assembly of the construction platform by adopting the method of the step three at the position of the fifth section of template. Hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage in the fourth step, connecting and fixing, and then installing a pedestrian passageway between the construction platform on the uppermost layer and the top of the new frame type safety ladder cage according to the method in the fifth step;
step ten, repeatedly adopting the method from the step six to the step nine until pier body construction is completed;
step eleven, reserving the uppermost section of template, and removing the rest sections of templates;
and step twelve, polishing the pier cap template, brushing a release agent on the inner wall, hoisting the pier cap template, cleaning the upper and lower butt joint surfaces of the pier cap template and the reserved uppermost template, adding a pad slurry-stopping adhesive tape, then butt-jointing and fixing, and finally completing the assembly of the construction platform at the pier cap template by adopting the method of the step three.
Step thirteen, hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage, connecting and fixing, and then installing a pedestrian passageway between the uppermost construction platform and the top of the new frame type safety ladder cage according to the method of the step five;
and fourteen, pouring concrete in the pier cap template.
As an embodiment of the present invention, each section of the frame-type safety ladder cage includes a frame vertical rod 11 disposed at four corners of a rectangular structure, a plurality of frame cross rods 10 are fixed between two adjacent frame vertical rods 11 at intervals in a horizontal direction, a frame diagonal brace 12 is respectively fixed at a diagonal position of a single area surrounded by two frame cross rods adjacent to each other and two frame vertical rods 11 connected with the two frame cross rods, and the upper and lower ends of each ladder cage protection net 13 are fixedly connected with the upper and lower frame cross rods 10 in each single area through a ladder cage protection net connecting plate 15. The vertical rods 11 of the framework type safety ladder cage in the upper section and the lower section are fixedly connected through a ladder cage framework connecting plate 14.
The cat ladder structure include respectively along the inclined direction setting at each section the step 17 in the frame type safety ladder cage, the upper and lower both sides of step 17 respectively with the fixed continuous one end of a footboard 16 that sets up along the horizontal direction, the other end of two footboard 16 is fixed respectively on each section the frame horizontal pole 10 of frame type safety ladder cage corresponding position department.
The structure prepared by the method of the invention is as follows: including three construction platform, cat ladder system that upper and lower interval set up and connect the pavement between construction platform and cat ladder system top on the upper strata, three construction platform set up along the circumferencial direction of first section template, second section template and third section template outer wall respectively and fix on the outer wall of first section template, second section template and third section template, first section template, second section template and third section template install the department at the pier stud steel reinforcement cage's that has been under construction and all set up along the circumferencial direction of pier stud steel reinforcement cage from supreme connection respectively, every construction platform include a plurality of support crossbars 2 that set up along the horizontal direction, the below of every support crossbars 2 all is provided with a support diagonal 5, the inner of every support crossbars 2 and the connecting plate 6 fixed link to each other of support diagonal 5 with the welding in the template of corresponding position department, the outer end of every support crossbars 2 and the upper end of a support diagonal 5 and the vertical support diagonal 5 of this support crossbars are all set up along the circumferencial direction of a plurality of vertical support bars 3, can be connected with each other along the vertical support 9 of vertical support that is located between the vertical support bar 3 along the horizontal direction, the vertical support 9 is connected with each support bar 3 and is connected with each other along the horizontal support 9. A wood board 7 is paved on the support cross rod 2 of the uppermost construction platform, and a steel wire mesh 8 is bound on the support vertical rod 3 of the uppermost construction platform by steel wires to form a protection system.
The cat ladder system comprises a plurality of sections of frame type safety ladder cages which are connected up and down, and cat ladder structures are respectively arranged in each section of frame type safety ladder cage. The cat ladder structures in the multi-section frame type safety ladder cages which are connected up and down are mutually connected, and ladder cage protection net pieces 13 are respectively fixed at the four wall positions of each section of frame type safety ladder cage.
The pedestrian passageway including laying the passageway plank 18 between the skeleton horizontal pole 10 of the first frame type safety ladder cage of the top and the support horizontal pole 2 of a construction platform of the top, two rows of guardrail steel pipes 19 set up respectively in the front and back both sides of passageway plank 18, each row of guardrail steel pipes 19 includes many guardrail steel pipes that set up along the horizontal direction, the one end of each guardrail steel pipe links to each other with the skeleton montant 11 of the first frame type safety ladder cage of cat ladder system is fixed and the other end links to each other with the support montant 3 of a construction platform of the top is fixed, be connected with the protection railing on the outer wall of each row of guardrail steel pipes 19 along vertical direction and around having dense mesh net to prevent to fall.
Claims (5)
1. The construction method of the protection system adjacent to the existing high-speed vase type pier column is characterized by comprising the following steps of:
step one, respectively encircling and fixing main body parts of one construction platform on a first section of template, a second section of template and a third section of template, wherein the specific installation process of the main body parts of each construction platform is as follows:
the inner ends of a plurality of support cross rods (2) arranged along the horizontal direction are fixedly connected with connecting plates (6) welded on the templates at corresponding positions along the circumferential direction of each section of template, a support diagonal brace is arranged below each support cross rod, the lower end of each support diagonal brace is fixedly connected with the connecting plates welded on the templates at the corresponding positions, and the outer end of each support cross rod and the upper end of one support diagonal brace below the support cross rod are fixedly connected with the lower part of a support vertical rod (3) arranged along the vertical direction;
hoisting and fixing the pier column reinforcement cage on the bearing platform reinforcement embedded bars, and hoisting a first section of template, a second section of template and a third section of template of the main body part of the construction platform by using an automobile crane after the bearing platform concrete strength reaches the requirement; a first section of template, a second section of template and a third section of template are sequentially installed on the circumferential direction of the outer wall of the pier column reinforcement cage from bottom to top, wherein the upper section of template is supported on the lower section of template and fixedly connected through bolts;
step three, fixing a plurality of steel bar cross bars (9) on a plurality of support vertical bars (3) of each construction platform at intervals along the horizontal direction; a wood board (7) and a steel wire mesh (8) are paved on a support cross bar (2) of the uppermost construction platform, and steel wires are used for binding the steel wire mesh on a support vertical bar to form a protection system;
step four, assembling a frame type safety ladder cage, wherein the concrete process is as follows:
the multi-section frame type safety ladder cages which are transported to the construction site after the factory processing is finished are fixedly connected up and down through bolts, ladder stand structures are respectively arranged in each section of frame type safety ladder cage, the ladder stand structures in the two sections of frame type safety ladder cages which are connected up and down are connected with each other, and ladder cage protection meshes are respectively fixed at four wall positions of each section of frame type safety ladder cage;
step five, installing a pedestrian passageway between the uppermost construction platform and the top of the cat ladder system;
step six, coating release agents on the inner walls of the first section of template, the second section of template and the third section of template, and then pouring concrete in the first section of template, the second section of template and the third section of template;
step seven, after the concrete strength reaches the design requirement, dismantling wood boards, a first section of templates and a second section of templates paved on the support cross bars of the pedestrian passageway and the uppermost construction platform, and reserving a third section of templates;
step eight, polishing the removed first section and second section templates and brushing a release agent on the inner wall; then hoisting the first section of template to a fourth section of template position above the third section of template by a crane, supporting the first section of template serving as the fourth section of template on the third section of template and adopting bolt connection between the first section of template and the third section of template, moving the second section of template serving as the fifth section of template to a fifth section of template position above the fourth section of template position, and supporting the fifth section of template on the fourth section of template and adopting bolt connection between the fifth section of template and the fourth section of template;
step nine, completing the assembly of a construction platform by adopting a method of the step three at the position of a fifth section of template, hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage of the step four, connecting and fixing, and then installing a pedestrian passageway between the construction platform at the uppermost layer and the top of the new frame type safety ladder cage according to the method of the step five;
step ten, repeatedly adopting the method from the step six to the step nine until pier body construction is completed;
step eleven, reserving the uppermost section of template, and removing the rest sections of templates;
step twelve, polishing the pier cap template and brushing a release agent on the inner wall, then hoisting the pier cap template, cleaning up the upper and lower butt joint surfaces of the pier cap template and the reserved uppermost template, adding a pad slurry-stopping adhesive tape, then butt-jointing and fixing, and finally completing the assembly of a construction platform at the pier cap template by adopting the method of the step three;
step thirteen, hoisting a new section of frame type safety ladder cage to the top wall of the frame type safety ladder cage, connecting and fixing, and then installing a pedestrian passageway between the uppermost construction platform and the top of the new frame type safety ladder cage according to the method of the step five;
and fourteen, pouring concrete in the pier cap template.
2. The method of constructing an adjoining existing high-speed vase-type pier stud protection system of claim 1, wherein: the specific process of the fifth step is as follows:
firstly, paving a channel plank (18) between a framework cross bar (10) of the uppermost section of framework type safety ladder cage and a bracket cross bar (2) of the uppermost construction platform;
the second step, two front and back rows of guardrail steel pipes (19) are respectively arranged on the front and back sides of the channel plank, each row of guardrail steel pipes comprises a plurality of guardrail steel pipes arranged along the horizontal direction, one end of each guardrail steel pipe is fixedly connected with a framework vertical rod (11) of the uppermost one-section framework type safety ladder cage of the ladder system, and the other end of each guardrail steel pipe is fixedly connected with a support vertical rod of the uppermost one of the platforms;
and thirdly, connecting the protective railings on the outer wall of each row of guardrail steel pipes along the horizontal direction and fixing the dense mesh net to prevent falling.
3. The method of construction adjacent to an existing high-speed vase-type pier stud protection system according to claim 1 or 2, wherein: and (d) cleaning the butt joint surfaces of the upper and lower templates when the templates in the step (eight) are installed, and adding a pad grouting stopping adhesive tape.
4. A method of constructing an adjoining existing high-speed vase-type pier stud protection system in accordance with claim 3, wherein: each section the frame type safety ladder cage is including setting up the skeleton montant in rectangle structure four corners department, is fixed with many skeleton crossbars (10) along the interval about the horizontal direction between two adjacent skeleton montants, and two adjacent skeleton crossbars about and the diagonal position department that two skeleton montants that link to each other with two skeleton crossbars enclose into is fixed with skeleton bracing (12) respectively, the upper and lower both ends of each ladder cage protection net piece pass through ladder cage protection net piece connecting plate (15) and each the upper and lower skeleton crossbars fixed connection in single region, upper and lower two sections the skeleton montants of frame type safety ladder cage between pass through ladder cage skeleton connecting plate (14) fixed connection.
5. The method of constructing an existing high-speed vase-type pier stud protection system in proximity of claim 4, wherein: the cat ladder structure include respectively along the inclined direction setting at each section frame type safety ladder cage in step (17), the upper and lower both sides of step respectively with the one end fixed continuous of the footboard that sets up along the horizontal direction, the other end of two footboards is fixed respectively on each section frame type safety ladder cage corresponds the skeleton horizontal pole of position department.
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| CN202111264463.5A CN114134813B (en) | 2021-10-28 | 2021-10-28 | Construction method of adjacent existing high-speed vase type pier column protection system |
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| CN202111264463.5A CN114134813B (en) | 2021-10-28 | 2021-10-28 | Construction method of adjacent existing high-speed vase type pier column protection system |
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| CN114134813B true CN114134813B (en) | 2024-03-01 |
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| CN105297635A (en) * | 2015-08-10 | 2016-02-03 | 陈修缘 | Assembled lifting type construction platform for pier column construction and construction method thereof |
| CN105113388A (en) * | 2015-09-18 | 2015-12-02 | 宁波交通工程建设集团有限公司 | Formwork and bracket combining structure of vase pier of viaduct and application method |
| CN106192758A (en) * | 2016-07-15 | 2016-12-07 | 中建五局第三建设有限公司 | A kind of construction method utilizing the cantilever form large-scale high pier stud of construction |
| CN107178037A (en) * | 2017-05-31 | 2017-09-19 | 中交二公局第工程有限公司 | The outer frame connecting structure of trestle vase-shaped column-type pier pier shaft and its construction technology |
| CN108360380A (en) * | 2018-01-18 | 2018-08-03 | 中建三局第建设工程有限责任公司 | A kind of bridge pier column construction operation platform and its construction method |
| CN210315224U (en) * | 2019-03-29 | 2020-04-14 | 中铁十四局集团第一工程发展有限公司 | High mound turns over mould construction safety passageway system |
| CN113293694A (en) * | 2021-07-01 | 2021-08-24 | 中交二航局第四工程有限公司 | Rollover frame structure for efficient pier body construction and construction process |
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| CN114134813A (en) | 2022-03-04 |
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