A kind of factory-like construction method and equipment of marine thin-walled hollow cast-in-situ pier column

Abstract

The application discloses a kind of factory-like construction method and equipment of thin-walled hollow cast-in-situ pier column in sea, and for the construction setting pier construction plant structure of pier body at pier site in sea, by setting trestle structure as access platform outside pier site, sets up tyre gantry crane for hoisting operation on trestle structure, installs pier construction machine by tyre gantry crane hoisting, utilizes pier construction machine to carry out current pier body reinforcement component installation, formwork system setting, concrete pouring and curing operation, realizes factory automation, standardization, periodic construction of pier body construction, has good adaptability to sea construction environment, can be used as a whole and moves, without repeated disassembly, greatly improve the efficiency of cast-in-situ pier column construction in sea, guarantee construction quality and construction safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore pier column construction. More particularly, the present application relates to a kind of factory-like construction method and equipment for offshore thin-walled hollow cast-in-situ pier column. BACKGROUND

[0002] Currently, the construction of offshore thin-walled hollow cast-in-situ pier column mostly adopts turnover formwork construction or one-time pouring forming with integral formwork, which mainly has the following problems:

[0003] (1) Turnover formwork construction needs to set more holes for tie rods on the pier body, and the holes need to be repaired after the pier body is formed, so the quality of cast-in-situ pier body is poor, especially for offshore piers, the durability of the pier body main structure will be adversely affected by the pre-buried holes or tie rod holes.

[0004] (2) One-time pouring forming with integral formwork has great difficulty in vibration, pouring and steel bar construction, and requires large-scale supporting lifting equipment with high safety risk.

[0005] (3) Pier body formwork needs to be installed in batches and multiple times, which is low in construction efficiency.

[0006] (4) The maintenance condition is poor, and the appearance quality of the pier body is difficult to guarantee.

[0007] (5) The construction environment is poor, and the protection platform is simple, which has great safety hazards during formwork installation.

[0008] (6) Special hoisting equipment needs to be arranged near the pier for a long time, which has low equipment utilization rate.

[0009] (7) Steel bar binding efficiency and quality are low, the binding platform is simple, and the working condition is poor.

[0010] (8) The integration degree of on-site construction measures is not high, and the transfer and installation efficiency is low. SUMMARY

[0011] An object of the present application is to solve at least the above problems and provide at least the advantages to be explained later.

[0012] Another object of the present application is to provide a factory-like construction method and equipment for offshore thin-walled hollow cast-in-situ pier column to solve the technical problem of great difficulty in cast-in-situ construction of offshore pier column in the prior art, and to create a pier body flow production line on site to improve the construction quality, efficiency, safety and management level of the pier column.

[0013] In order to achieve these objects and other advantages of the present application, on one hand, the present application provides a factory-like construction method for offshore thin-walled hollow cast-in-situ pier column, comprising the following steps:

[0014] S1, a communication trestle structure is arranged outside all pier site cofferdams to be constructed, a tire type gantry crane is arranged on the trestle structure, the pier body is divided into multiple segments and a pier top block;

[0015] S2, the cap and the first segment of the pier body at the pier site are simultaneously constructed, the tire type gantry crane is moved to be arranged on opposite sides of the pier site, a piling machine is integrally installed on the pier site by the tire type gantry crane, the bottom of the piling machine is fixed to the upper surface of the corresponding cap, a maintenance system, an outer mold system and a vibrating system which can move up and down are arranged on the piling machine, and the piling machine is used for constructing the pier body, the tire type gantry crane and the piling machine form a piling factory.

[0016] S3, the tire type gantry crane is used to hoist the reinforcement parts of the second segment of the pier body, and the piling machine is used to complete the installation of the reinforcement parts of the second segment of the pier body.

[0017] S4, the tire type gantry crane is used to adjust the outer mold system of the piling machine to the second segment of the pier body, the inner mold system of the second segment is installed, and concrete construction is performed.

[0018] S5, steps S3-S4 are repeated, and all the remaining segments are constructed in the same way as the second segment.

[0019] S6, the inner mold systems of all the segments are integrally removed.

[0020] S7, the piling machine cooperates with the tire type gantry crane to hoist and install the reinforcement parts of the pier top block, the inner cavity bottom mold system of the pier top block and the outer mold system of the pier top block in sequence, and then concrete construction of the pier top block is performed.

[0021] S8, the construction of the pier body at the current pier site is completed, all the molds corresponding to the pier top block are removed, and the piling factory is adjusted to a transfer state.

[0022] S9, the piling factory is integrally transferred to the next pier site, steps S2-S8 are repeated, and the construction of the pier body at all the pier sites is completed.

[0023] Preferably, the trestle structure comprises a main trestle and branch trestles, the main trestle is arranged on one side of all the pier sites in the bridge length direction, and a pair of branch trestles is symmetrically arranged on the front and back sides of each pier site in the bridge width direction.

[0024] The tire type gantry crane is arranged on the main trestle in the bridge length direction, when the pier body is constructed, the tire type gantry crane is first moved to the corresponding pier site along the main trestle, and then is moved to a pair of branch trestles in the bridge width direction to cross above the corresponding pier site.

[0025] Preferably, the pier building machine comprises a column frame system arranged outside the pier position, the bottom of the column frame system is fixed to the corresponding bearing platform, and a lower self-elevating platform, a main supporting platform and an upper self-elevating platform are sequentially arranged on the column frame system from bottom to top and can move up and down along the column frame system, the curing system, the outer mold system and the vibrating system are sequentially arranged on the main supporting platform from bottom to top;

[0026] After the tire-type gantry crane transports the steel parts, the upper self-elevating platform is used to complete the installation of the steel parts;

[0027] After the concrete is poured, the lower self-elevating platform is used to cooperate with the curing system to cure the concrete.

[0028] Preferably, when the pier building factory is adjusted to the transfer state, the lower self-elevating platform, the main supporting platform and the upper self-elevating platform are moved downward to the bottom of the column frame system and are fixed between the column frame system and the main supporting platform, the lifting mechanism of the tire-type gantry crane is connected to the main supporting platform, the fixing between the column frame system and the bearing platform is released, and the entire pier building machine is lifted.

[0029] On the other hand, the present application also provides a kind of factory-like equipment for building thin-walled hollow cast-in-situ pier in sea, comprising:

[0030] The trestle structure comprises a main trestle and a branch trestle, the main trestle is arranged on one side of all pier positions along the bridge direction, the branch trestle is arranged along the transverse direction of the bridge and is connected with the main trestle, the branch trestle is symmetrically arranged on the front and back sides of each pier position along the bridge direction, and is used to support the two ends of the tire-type gantry crane which is horizontally arranged above the pier position.

[0031] The pier building machine comprises a column frame system, the column frame system is arranged outside the pier body on the bearing platform and covers the construction height required by the pier body, vertical sliding rails are arranged on the column frame system, a lower self-elevating platform, a main supporting platform and an upper self-elevating platform are sequentially connected on the column frame system from bottom to top, the lower self-elevating platform, the main supporting platform and the upper self-elevating platform can move up and down along the column frame system through the sliding rails, a curing system, an outer mold system and a vibrating system are sequentially arranged on the main supporting platform from bottom to top, and an inner mold system is detachably connected to the inner side of the outer mold system on the main supporting platform.

[0032] Preferably, the inner mold system comprises a loose template and a retractable template, a fixed frame body is arranged on the main supporting platform corresponding to the inner mold system, the loose template and the retractable template are cross-installed on the fixed frame body and jointly form a closed inner supporting ring structure, retractable screws are connected to the inner side of the fixed frame body corresponding to the retractable template, and the positions of the retractable screws after retraction are just closed to form a mold opening ring structure.

[0033] Preferably, the rubber-tired gantry crane comprises a main beam structure, a support leg structure, a main lifting mechanism, a secondary lifting mechanism and a material concentration platform, the support leg structure is symmetrically connected to the bottom of both ends of the main beam structure, a rubber-tired traveling mechanism is arranged at the bottom of the support leg structure, the material concentration platform is arranged on one of the support leg structures, and the main lifting mechanism and the secondary lifting mechanism are respectively installed on the main beam structure and can move along the length direction of the main beam structure.

[0034] Preferably, a guide line is arranged on the main pier and the support pier, the rubber-tired traveling mechanism moves along the guide line, and a locking structure for preventing sliding is further arranged on the rubber-tired traveling mechanism.

[0035] The present application at least has the following advantages: the factory-like construction method and equipment of the thin-walled hollow cast-in-situ pier column in the sea sets a pier construction factory structure for the construction of the pier body at the pier site, sets a pier structure as a passing platform on the outside of the pier site, sets a rubber-tired gantry crane for hoisting operation on the pier structure, hoists and installs a pier construction machine by the rubber-tired gantry crane, installs the reinforcement parts of the current pier body, sets a formwork system, pours and vibrates concrete and performs maintenance operation by the pier construction machine, realizes factory automation, standardization and periodic construction of the pier body construction, has good adaptability to the sea construction environment, can be used as a whole, does not need to be repeatedly disassembled and assembled, greatly improves the efficiency of the cast-in-situ pier column construction in the sea, ensures the construction quality and safety, the field construction measures of the factory-like construction equipment of the thin-walled hollow cast-in-situ pier column in the sea have high integration degree, the construction equipment has clear functions, provides a construction platform with good working environment, has high transfer efficiency and strong quality control ability for the pier body construction, and effectively reduces the construction safety risk.

[0036] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art through practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 The overall structure schematic diagram of the factory-like construction equipment of the thin-walled hollow cast-in-situ pier column in the sea of the present application arranged at the pier site;

[0038] Figure 2 The overhead structure diagram of the pier structure arranged on one side of the pier site in step S1 of the present application;

[0039] Figure 3 The structure schematic diagram of the construction of the first section of the pier body and the pile cap in step S2 of the present application;

[0040] Figure 4 The structure schematic diagram of the installation of the pier construction machine in step S2 of the present application;

[0041] Figure 5The structural schematic view of the tire type gantry crane in step S3 of the application for hoisting the pier body 2# segment reinforcing part;

[0042] Figure 6 The structural schematic view of the 2# segment reinforcing part after the installation is completed in step S3 of the application;

[0043] Figure 7 The structural schematic view of the tire type gantry crane after the height of the outer mold system is adjusted to the 2# segment position in step S4 of the application;

[0044] Figure 8 The structural schematic view of the 3# segment reinforcing part in step S5 of the application;

[0045] Figure 9 The structural schematic view of the tire type gantry crane after the height of the outer mold system is adjusted to the 3# segment position in step S5 of the application;

[0046] Figure 10 The structural schematic view when the inner mold system is removed in step S6 of the application;

[0047] Figure 11 The structural schematic view of the installation of the pier top block reinforcing part and the inner cavity bottom mold system in step S7 of the application;

[0048] Figure 12 The structural schematic view of the installation of the pier top block outer mold system in step S7 of the application;

[0049] Figure 13 The structural schematic view corresponding to the construction state in step S8 of the application;

[0050] Figure 14 The structural schematic view when the pier building machine is lifted for transfer in step S9 of the application;

[0051] Figure 15 The structural schematic view of the tire type gantry crane in the application; Figure 14

[0052] The structural schematic view of the tire type gantry crane in the application; Figure 16 The structural schematic view of the inner mold system in the application in the closed mold and open mold states;

[0053] The structural schematic view of the inner mold system in the application in the closed mold and open mold states;

[0054] 1, pier site, 2, cofferdam, 3, trestle structure, 4, tire gantry crane, 5, pile cap, 6, first section of pier body, 7, pier building machine, 8, maintenance system, 9, outer mold system, 10, vibrating system, 11, 2# segment reinforcement parts, 12, 3# segment reinforcement parts, 13, reinforcement parts of pier top block, 14, outer mold system of pier top block, 15, pier body, 16, main trestle, 17, branch trestle, 18, column frame system, 19, lower self-elevating platform, 20, main bearing platform, 21, upper self-elevating platform, 22, loose template, 23, retractable template, 24, telescopic screw, 25, main beam structure, 26, leg structure, 27, main lifting mechanism, 28, auxiliary lifting mechanism, 29, material concentration platform, 30, tire walking mechanism, 31, locking structure, 32, fixed frame body. DETAILED DESCRIPTION

[0055] The present application will be further described below in conjunction with the drawings, so that those skilled in the art can implement the present application according to the description and drawings.

[0056] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified; in the description of the present application, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] As shown in Figures 1-15 , the present application provides a kind of factory-like construction method of thin-walled hollow cast-in-situ pier in sea, comprising the following steps:

[0058] S1, as shown in Figures 1-2 , cofferdam 2 is arranged on the outer side of all the pier sites 1 to be constructed, and a trestle structure 3 is arranged on the outer side of the cofferdam 2 structure, and the trestle structure 3 is arranged adjacent to the pier site 1, serving as a traveling channel for the tire gantry crane 4 and a platform for transferring materials and personnel. In this embodiment, each pier body 15 is divided into four parts: a first section, a 2# section, a 3# section and a pier top block.

[0059] Each set of pier site 1 has a cofferdam 2 structure around the circumference, and the trestle structure 3 is located on the outer side of the cofferdam 2 structure. The trestle structure 3 is arranged adjacent to the pier site 1, serving as a traveling channel for the tire gantry crane 4 and a platform for transferring materials and personnel. In this embodiment, each pier body 15 is divided into four parts: a first section, a 2# section, a 3# section and a pier top block.

[0060] S2, as shown in Figure 1 , Figures 3-4As shown, the synchronous construction of the pile cap 5 at the pile site 1 and the first segment 6 of the pier body, the tire type gantry crane 4 is arranged on the opposite sides of the pile site 1, the tire type gantry crane 4 is used to install the piling machine 7 to the pile site 1, the bottom of the piling machine 7 is fixed on the upper surface of the corresponding pile cap 5, the piling machine 7 is provided with a movable maintenance system 8, an outer mold system 9 and a vibrating system 10, which are used for the construction of the pier body 15, and the tire type gantry crane 4 and the piling machine 7 form a piling factory.

[0061] The pile cap 5 is provided with an anchor, which is used for detachable fixing connection with the piling machine 7, the tire type gantry crane 4 is arranged across the pile site 1, so that the lifting path covers the construction plane of the pile site 1, the tire type gantry crane 4 is mainly used for lifting and installing the materials such as structure and steel parts, and the piling machine 7 is mainly used for completing the installation of the steel parts, the setting of the formwork system, the pouring of the concrete, the vibrating and the maintenance.

[0062] S3, as shown, Figures 5-6 The steel parts are made in advance, the tire type gantry crane 4 is used to lift and transport the steel parts 11 of the pier body 15# segment to the designated position, and the piling machine 7 is used to complete the installation of the steel parts of the pier body 15# segment.

[0063] S4, for the construction of the cast-in-situ pier column in the sea, the inner mold system and the outer mold system 9 need to be set, as shown, Figure 7 The lifting mechanism of the tire type gantry crane 4 is used to quickly and accurately adjust the outer mold system 9 of the piling machine 7 to the required height, the outer mold system 9 is adjusted to the outside of the steel parts 11 of the pier body 15# segment, and the concrete construction of the 2# segment is carried out after the installation of the 2# segment inner mold system.

[0064] S5, repeat steps S3-S4, and use the same method as the 2# segment to construct all the remaining segments. Figures 8-10 As shown, the steel parts 12 of the 3# segment are hoisted and lifted, the outer mold system 9 is adjusted, the corresponding inner mold system is set, the concrete construction of the 3# segment is carried out, and the maintenance is completed.

[0065] S6, remove all the inner mold systems of the segments. Figure 10 , Figure 16 As shown, the inner mold systems of the 2# segment and the 3# segment are removed, and the tire type gantry crane 4 is adjusted to move away from the pile site 1.

[0066] S7, as shown, Figures 11-12 The steel parts structure of the pier top block, the outer mold system 9 and the inner cavity bottom mold system are made in advance, the piling machine 7 cooperates with the tire type gantry crane 4 to hoist and install the steel parts 13 of the pier top block, the inner cavity bottom mold system of the pier top block and the outer mold system 14 of the pier top block, and then the concrete construction of the pier top block is carried out.

[0067] S8, as shown,Figures 13-15 As shown, after the completion of the pier body 15 construction of the current pier position 1, all the inner cavity bottom mold systems and the pier top block outer mold systems 14 corresponding to the pier top block are removed by the tire type gantry crane 4, and the pier construction plant is adjusted to the transfer state. The transfer state is that the part of the pier construction plant 7 used for the construction of the pier body 15 is lifted by the lifting mechanism of the tire type gantry crane 4 to be separated from the structure of the poured pier body 15, and the locking state of the tire type gantry crane 4 is released, so that the tire type gantry crane 4 can move along the trestle structure 3.

[0068] S9, the whole pier construction plant is transferred to the next pier position 1, and steps S2-S8 are repeated until the pier body 15 construction of all pier positions 1 is completed.

[0069] The method for building the thin-walled hollow cast-in-situ pier column in the sea according to the present application sets the pier construction plant structure for the construction of the pier body 15 at the pier position 1 in the sea, sets the trestle structure 3 as a passing platform outside the pier position 1, sets the tire type gantry crane 4 for hoisting operation on the trestle structure 3, hoists and installs the pier construction plant 7 by the tire type gantry crane 4, installs the reinforcement parts of the current pier body 15, sets the formwork system, pours and vibrates the concrete, and performs the curing operation by the pier construction plant 7, realizes the factory automation, standardization, and periodic construction of the pier body 15 construction, has good adaptability to the construction environment in the sea, can be used in whole and transferred, does not need to be repeatedly disassembled and assembled, greatly improves the efficiency of the cast-in-situ pier column construction in the sea, and guarantees the construction quality and safety.

[0070] In another technical solution, as shown in Figure 2 The trestle structure 3 includes a main trestle 16 and a branch trestle 17, the main trestle 16 is arranged on one side of all the pier positions 1 along the bridge longitudinal direction, and a pair of branch trestles 17 is symmetrically arranged on the front and back sides of each pier position 1 along the bridge longitudinal direction, and each branch trestle 17 is connected to the main trestle 16 along the bridge transverse direction.

[0071] The tire type gantry crane 4 is arranged on the main trestle 16 along the bridge longitudinal direction, and when the pier body 15 is constructed, the tire type gantry crane 4 is first moved to the corresponding pier position 1 along the main trestle 16, and then moved to a pair of branch trestles 17 along the bridge transverse direction to cross above the corresponding pier position 1.

[0072] The main trestle 16 is the main moving channel of the tire type gantry crane 4, and is connected to all the positions required to be moved at the pier positions 1, and the branch trestles 17 on both sides of each pier position 1 support the bottom of both ends of the tire type gantry crane 4, and for the construction of multiple pier positions 1, multiple groups of tire type gantry cranes 4 can be simultaneously used to move to a pair of branch trestles 17 corresponding to different pier positions 1 to perform construction, further improving the construction efficiency of a row of pier positions 1 as a whole.

[0073] In another technical solution, as shown in Figure 1As shown, the pier building machine 7 comprises a column frame system 18 arranged outside the pier position 1, the bottom of the column frame system 18 is fixed with the corresponding bearing platform 5, and a lower self-elevating platform 19, a main bearing platform 20, and an upper self-elevating platform 21 are arranged on the column frame system 18 from bottom to top in sequence, the curing system 8, the outer mold system 9, and the vibrating system 10 are arranged on the main bearing platform 20 from bottom to top in sequence;

[0074] After the tire-type gantry crane 4 hoists the reinforcement parts, the upper self-elevating platform 21 is used to complete the installation of the reinforcement parts;

[0075] After the pouring of concrete, the lower self-elevating platform 19 is used to cooperate with the curing system 8 to cure the concrete.

[0076] The column frame system 18 of the pier building machine 7 serves as a support system of the overall structure of the pier building machine 7 and is arranged outside the pier body 15, a platform structure for the segment construction of the pier body 15 is arranged on the column frame system 18, and a formwork, a vibrating device, the curing system 8, and the like are arranged on the platform, without the need to set a pre-embedded hole during the construction of the pier body 15 or to set a tension rod, which will not cause damage to the concrete segments of the pier body 15, is conducive to ensuring the quality of the cast-in-place of the pier body 15, and is also convenient for the subsequent turnover of the pier building machine 7; in combination with the characteristics of the segment-by-segment upward construction of the pier body 15, the lower self-elevating platform 19 and the upper self-elevating platform 21 are arranged to facilitate the upward and downward passage of the construction personnel for operation, the curing construction is performed on the segments that have been poured below, the upper self-elevating platform 21 at the upper end can cooperate with the tire-type gantry crane 4 to perform the reinforcement part installation operation, and then the formwork system is moved upward to perform the concrete pouring construction of the segments above, that is, the curing, reinforcement part installation, and concrete cast-in-place construction of different segments can be performed simultaneously through the pier building machine 7, which significantly improves the construction efficiency.

[0077] In another technical solution, as shown in Figures 13-15 When the pier building factory is adjusted to the transfer state, the lower self-elevating platform 19, the main support platform, and the upper self-elevating platform 21 are moved downward to the bottom of the column frame system 18 and are fixed between the column frame system 18, the hoisting mechanism of the tire-type gantry crane 4 is connected to the main bearing platform 20 downward, the fixing between the column frame system 18 and the bearing platform 5 is released, and the entire pier building machine 7 is lifted.

[0078] When the transport state is formed, all platform structures of the pier builder 7, the lower self-elevating platform 19, the main support platform, the upper self-elevating platform 21 are moved to positions close to the bottom of the column frame system 18 and arranged adjacent to each other, then the tire gantry crane 4 is connected to the main bearing platform 20 as a lifting point, the lifting mechanism is retracted upward, the overall structure of the pier builder 7 is lifted, and the height range of the constructed pier body 15 is left, and the pier builder 7 is set to the transport state. On the one hand, the lifting height is left, and on the other hand, after the pier builder 7 is moved to the next pier site 1, the lower self-elevating platform 19, the main support platform and the upper self-elevating platform 21 are located at the bottom close to the pile cap 5, facilitating the construction of the new pier body 15 from bottom to top.

[0079] The application also provides a kind of factory-like construction equipment for thin-walled hollow cast-in-situ pier column in sea, which comprises: Figures 1-2 As shown in the drawings, comprising:

[0080] The trestle structure 3 comprises a main trestle 16 and a branch trestle 17. The main trestle 16 is arranged on one side of all pier sites 1 along the bridge longitudinal direction. The branch trestle 17 is arranged along the bridge transverse direction and connected with the main trestle 16. The branch trestle 17 is symmetrically arranged on the front and back sides of each pier site 1 along the bridge longitudinal direction, and used for supporting two ends of the tire gantry crane 4 which is horizontally arranged above the pier site 1.

[0081] The pier builder 7 comprises a column frame system 18. The column frame system 18 is arranged outside the pier body 15 on the pile cap 5 and covers the construction height of the pier body 15. The column frame system 18 is provided with vertical sliding rails. The column frame system 18 is sequentially connected with the lower self-elevating platform 19, the main bearing platform 20 and the upper self-elevating platform 21 from bottom to top. The lower self-elevating platform 19, the main bearing platform 20 and the upper self-elevating platform 21 can move up and down along the column frame system 18 through the sliding rails. The curing system 8, the outer mold system 9 and the vibrating system 10 are sequentially arranged on the main bearing platform 20 from top to bottom. The inner mold system is detachably connected to the inner side of the outer mold system 9 on the main bearing platform 20.

[0082] The entire pier body 15 construction site is arranged as a large factory, each pier site 1 corresponds to a station in the factory, a reinforcing part forming system is arranged in the rear field, the trestle structure 3 is arranged as a transportation track in the factory, the tire gantry crane 4 and the pier building machine 7 are arranged as a mobile pier building factory for building the pier body 15, the overall turnover between the pier sites 1 is realized through the tire gantry crane 4, the reinforcing steel bars are transported to the pier site 1 along the trestle structure 3 after being formed into parts in the rear field, and are hoisted integrally through the tire gantry crane 4, the installation and cast-in-place piling of the pier body 15 are completed by the pier building machine 7, the tire gantry crane 4 also serves as a hoisting system and can be responsible for auxiliary cofferdam 2 steel pipe pile pulling and cofferdam 2 component installation, and the like, the entire construction site of the factory-like construction equipment for building the thin-walled hollow cast-in-place pier column in the sea has high integration degree of site construction measures, clear functions of construction equipment, provides a construction platform with good working environment, has high transfer efficiency, has strong quality control ability for the pier body 15 construction, and has low construction safety risk.

[0083] In another technical solution, as shown in Figure 16 , the inner mold system includes a leaf template 22 and a retractable template 23, and a fixed frame body 32 is arranged on the main bearing platform 20 corresponding to the inner mold system, the leaf template 22 and the retractable template 23 are cross-installed on the fixed frame body 32 and jointly form a closed inner support ring structure, and the inner side of the fixed frame body 32 is connected with a telescopic screw rod 24 corresponding to the retractable template 23, and the position of the telescopic screw rod 24 after retraction is that all the retractable templates 23 exactly form a closed mold opening ring structure.

[0084] The inner mold system is divided into two parts of the leaf template 22 and the integral retractable template 23, when the pier body 15 is relatively low, the inner mold system is arranged along the full height of the inner cavity, and when the pier body 15 is relatively high, the inner mold system can be arranged in sections in the vertical direction, the inner mold system is composed of the leaf template 22 and the retractable template 23 to form the inner side template of the pier body 15 section during cast-in-place construction, the fixed frame body 32 and the telescopic screw rod 24 are used for structural fixation and support, the retractable template 23 is driven to elongate and retract by the telescopic screw rod 24 to realize mold closing and mold opening, when the mold is removed, the leaf template 22 is removed first, and then the mold is opened integrally, the installation and removal of the inner mold system are integrally performed by the tire gantry crane 4, and after removal, the inner mold system is stored on the material centralized platform 29 arranged at the gantry leg, and is transferred to the next pier site 1 together with the pier building factory.

[0085] In another technical solution, as shown in Figure 1 , Figure 15As shown, the tire gantry crane 4 includes a main beam structure 25, a support leg structure 26, a main lifting mechanism 27, a secondary lifting mechanism 28, and a material concentration platform 29, the support leg structure 26 is symmetrically connected to the bottom of both ends of the main beam structure 25, the bottom of the support leg structure 26 is provided with a tire walking mechanism 30, the material concentration platform 29 is arranged on one of the support leg structures 26, the main lifting mechanism 27 and the secondary lifting mechanism 28 are respectively installed on the main beam structure 25 and can move along the length direction of the main beam structure 25.

[0086] The support leg structure 26 is a main force supporting structure, in order to disperse the force of the gantry tire, a force wheel set is added at the bottom of the support leg, at the same time, the force of the wheel set corresponds to the trestle structure 3 to ensure the safety of the trestle, the tire is in a 90° steering form, when the support trestle 17 and the main trestle 16 are walking and converted, only the angle of the tire needs to be changed from 0° to 90°, the length of the main beam structure 25 spans a pair of support trestles 17, the main lifting mechanism 27 is arranged to be driven by a main hoist trolley, which is convenient for moving on the main beam structure 25, the main lifting mechanism 27 is mainly used for lifting and transporting large weight structures, the secondary lifting mechanism 28 is arranged to be driven by a secondary hoist trolley, which is mainly used for lifting and transporting small weight structures, the main lifting mechanism 27 and the secondary lifting mechanism 28 work independently or cooperatively according to the construction requirements, the material concentration platform 29 is additionally arranged on one side of the support leg structure 26, which is mainly used for stacking the inner mold system and other tools, and is transferred synchronously with the pier building factory to realize the high integration of the pier building factory, reduce the number of equipment transportation, and improve the equipment use efficiency.

[0087] In another technical solution, as shown in Figure 1 、 15 As shown, the main trestle 16 and the support trestle 17 are provided with guide lines, the tire walking mechanism 30 moves along the guide lines, and the tire walking mechanism 30 is also provided with a locking structure for preventing slipping. By arranging the guide lines to guide the moving direction of the tire walking mechanism 30, and by arranging the locking structure 31, the tire is locked when the tire gantry crane 4 is hoisted to prevent slipping.

[0088] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation listed in the specification and embodiments, and can be fully applied to various fields suitable for the present application, and additional modifications can be easily realized by those skilled in the art, therefore, the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A method for the factory-like construction of a thin-walled hollow cast-in-situ pier in the sea, characterized in that, The method comprises the following steps: S1, a communication trestle structure is arranged outside all the cofferdams of the piers to be constructed, the trestle structure comprises a main trestle and branch trestles, the main trestle is arranged on one side of all the piers along the bridge longitudinal direction, a pair of branch trestles is symmetrically arranged on the front and back sides of each pier along the bridge longitudinal direction, each branch trestle is connected to the main trestle along the bridge transverse direction, a tire type gantry crane is arranged on the main trestle along the bridge longitudinal direction, and the pier body is divided into multiple segments and a pier top block; S2, the pile cap and the first segment of the pier body at the pier position are simultaneously constructed, when the pier body is constructed, the tire type gantry crane is first moved to the corresponding pier position along the main trestle, then is moved to a pair of branch trestles along the bridge transverse direction to straddle the corresponding pier position on the opposite sides, a pier building machine is integrally installed on the pier position by the tire type gantry crane, the pier building machine comprises a column frame system arranged outside the pier position, the bottom of the column frame system is fixed to the upper surface of the corresponding pile cap, a lower self-elevating platform, a main bearing platform and an upper self-elevating platform are sequentially arranged on the column frame system from bottom to top and can move up and down along the column frame system, a maintenance system, an outer mold system and a vibrating system are sequentially arranged on the main bearing platform from bottom to top and can move up and down, the maintenance system, the outer mold system and the vibrating system are used for constructing the pier body, and the tire type gantry crane and the pier building machine form a pier building factory; S3, the tire type gantry crane is used to hoist the reinforcement parts of the second segment of the pier body, and the upper self-elevating platform of the pier building machine is used to complete the installation of the reinforcement parts of the second segment of the pier body; S4, the tire type gantry crane is used to adjust the outer mold system of the pier building machine to the second segment of the pier body, the inner mold system of the second segment is installed to construct the concrete, and the lower self-elevating platform is used in cooperation with the maintenance system to maintain the concrete after the concrete is poured; S5, steps S3-S4 are repeated, and all the remaining segments are constructed in the same way as the second segment; S6, the inner mold systems of all the segments are integrally removed; S7, the pier building machine cooperates with the tire type gantry crane to hoist and install the reinforcement parts of the pier top block, the inner cavity bottom mold system of the pier top block and the outer mold system of the pier top block in sequence, and then the concrete construction of the pier top block is performed; S8, the construction of the pier body at the current pier position is completed, all the molds corresponding to the pier top block are removed, and the pier building factory is adjusted to a transfer state; S9, the pier building factory is integrally transferred to the next pier position, steps S2-S8 are repeated, and the construction of the pier body at all the pier positions is completed.

2. The method of claim 1, wherein the method is characterized by: When the pier building factory is adjusted to the transfer state, the lower self-elevating platform, the main bearing platform and the upper self-elevating platform are moved downward to the bottom of the column frame system and are fixed between the column frame system, the lifting mechanism of the tire type gantry crane is connected to the main bearing platform, the fixing between the column frame system and the pile cap is released, and the entire pier building machine is lifted.

3. The in-sea thin-walled hollow cast-in-situ pier column factory-like construction method according to claim 1 or 2, characterized in that, The height range of the column frame system covers the construction height required by the pier body, vertical slide rails are arranged on the column frame system, the lower self-elevating platform, the main bearing platform and the upper self-elevating platform can move up and down along the column frame system through the slide rails respectively, and the inner side of the outer mold system is detachably connected with the inner mold system.

4. The method of claim 3, wherein the method further comprises: The inner mold system comprises a loose leaf template and a shrinkage template, a fixed frame body is arranged on the main bearing platform corresponding to the inner mold system, the loose leaf template and the shrinkage template are cross-installed on the fixed frame body and jointly form a closed inner support ring structure, a telescopic screw rod is connected to the inner side of the fixed frame body corresponding to the shrinkage template, and the position of the telescopic screw rod after contraction is just a closed mold opening ring structure.

5. The in-plant construction method of a thin-walled hollow cast-in-situ pier column in the sea as claimed in claim 3, characterized by, The tire type gantry crane comprises a main beam structure, a support leg structure, a main lifting mechanism, a secondary lifting mechanism and a material concentration platform, the support leg structure is symmetrically connected to the bottom of both ends of the main beam structure, the bottom of the support leg structure is provided with a tire type traveling mechanism, the material concentration platform is arranged on one of the support leg structures, and the main lifting mechanism and the secondary lifting mechanism are respectively installed on the main beam structure and can move along the length direction of the main beam structure.

6. The in-plant construction method of a thin-walled hollow cast-in-situ pier column in the sea as claimed in claim 5, characterized by, A guide line is arranged on the main pier and the branch pier, the tire type traveling mechanism moves along the guide line, and a locking structure for preventing sliding is further arranged on the tire type traveling mechanism.

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