CN115559347A - Construction method of subway station node trolley with flat top and columns - Google Patents
Construction method of subway station node trolley with flat top and columns Download PDFInfo
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- CN115559347A CN115559347A CN202211272334.5A CN202211272334A CN115559347A CN 115559347 A CN115559347 A CN 115559347A CN 202211272334 A CN202211272334 A CN 202211272334A CN 115559347 A CN115559347 A CN 115559347A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
Abstract
The invention discloses a construction method of a subway station node trolley with a flat top and a column, which comprises a subway station structure and a trolley, wherein the subway station structure comprises a bottom plate, a top plate, side walls, a middle beam and a middle column, the bottom plate, the side walls, the middle beam and the middle column are connected in an assembling manner, and the bottom plate and the middle column are connected in a pouring manner; the trolley comprises a bottom trolley, a top trolley and a middle upright column trolley, wherein the bottom trolley is provided with two trolleys, and the two bottom trolleys are respectively arranged in a space defined by the middle beam, the side wall and the bottom plate. The construction method is suitable for a flat-top rectangular assembly type local node cast-in-place assembly type subway station, has strong practicability, adopts a streamlined operation mode, can assemble and complete the lower side wall, the middle plate and the middle screw rod at one time, provides horizontal supporting force for the enclosure structure, does not need to be inverted and supported, improves the utilization rate of the trolley, and greatly improves the construction efficiency.
Description
Technical Field
The invention relates to a construction method of a subway station, in particular to a construction method of a subway station node trolley with a flat top and a column.
Background
Along with the development of subway construction technology, more and more subway stations begin to adopt the subway station structure of assembled, and to the great heavier subway station of assembly structure, need more construction equipment when carrying out the construction, and the work progress is comparatively loaded down with trivial details, hard. The middle column and the bottom plate of the section structure of the fully prefabricated and local node cast-in-place fabricated structure directly have wet joints, and have equal-strength time, so that the construction rate is influenced; some existing pouring type subway stations can adopt integrated trolley equipment to carry out auxiliary construction, but the trolley assembling construction process directly influences the efficiency of the subway stations, the existing trolley assembling construction process is only suitable for all-cast-in-place subway stations or all-prefabricated subway stations, the side walls can be assembled only by disassembling the first support in the existing trolley assembling construction steps, therefore, the support inversion is needed, the ring-by-ring hoisting and assembling are carried out, and the assembling efficiency of the assembly type subway stations is limited.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the efficient railway station node trolley construction method for completing the lower side walls, the middle plate and the middle screw rod in one-step assembly by using a streamline operation mode of a full-prefabricated and local node cast-in-place subway station through a combined trolley.
The technical scheme adopted by the invention for solving the technical problem is as follows: a subway station node trolley construction method with a flat top and columns is characterized in that a group of bottom plates, top plates, side walls, center beams and center columns of a subway station form a ring frame, and the subway station comprises a plurality of groups of spliced bottom plates, top plates, side walls, center beams and center column ring frames; in the construction of the subway station, four ring frames are in a group, and the subway station is formed by constructing a plurality of groups of ring frames; the trolley is arranged at the mounting positions of the bottom plate, the top plate, the side walls, the middle beam and the middle column, and comprises a bottom trolley, a top trolley and a middle upright column trolley, wherein the bottom trolley is provided with two trolleys, the two bottom trolleys are respectively arranged in a space defined by the middle beam, the side walls and the bottom plate, two bottom trolleys are respectively arranged at two sides of the middle column, the middle upright column trolley is arranged between the two bottom trolleys, and the top trolley is arranged in a space among the top plate, the side walls and the middle beam; the subway station bottom plate, the top plate, the side walls, the middle beam and the middle beam are constructed through a trolley, and a continuous circulating construction process is formed through grouping.
As an improvement of the technical scheme, the method for constructing the subway station by adopting the trolley to continuously circulate comprises the following steps:
s1: hoisting the first group of ring frame bottom plates and the second group of ring frame bottom plates by using a gantry crane;
s2: mounting the last middle column of the first group of ring frames and the second group of ring frames by adopting a middle upright post supporting platform hung in the middle of the bottom trolley;
s3: constructing the lower side wall, the middle class, the middle beam and the lead screw of the first group of ring frames by adopting a bottom trolley;
s4: constructing upper side walls and top plate components of the first group of ring frames by adopting a top trolley;
s5: hoisting the bottom plate of the third group of ring frames by using a gantry crane;
s6: constructing a lower side wall middle plate and a middle plate side wall outer middle screw rod of the second group of ring frames by adopting a bottom trolley;
s7: constructing upper side walls and top plate components of the second group of ring frames by adopting a top trolley;
s8: hoisting the bottom plate of the fourth group of ring frames by using a gantry crane;
s9: and constructing the residual ring frame groups of the subway station in sequence.
As a further improvement of the above technical scheme, the bottom trolley comprises a telescopic middle upright post working platform, a telescopic side wall working platform, a traveling mechanism, an adjustable cantilever crane, a tensioning device, a side wall vacuum chuck device and a side wall springboard device, wherein the telescopic middle upright post working platform, the telescopic side wall working platform, the traveling mechanism, the adjustable cantilever crane, the tensioning device, the side wall vacuum chuck device and the side wall springboard device are all connected through a trolley steel structure; and a middle plate mounting trolley is further arranged on the bottom trolley.
As a further improvement of the above technical scheme, in S3 and S6, the middle plate mounting trolley on the bottom trolley is adopted to construct the middle plates of the first group of ring frames and the second group of ring frames, the side wall support platform and the operation tension platform outside the bottom trolley are adopted to construct the lower side walls and the middle plate side walls of the first group of ring frames and the second group of ring frames, and the bottom trolley is adopted to construct the middle beams of the first group of ring frames and the second group of ring frames.
As a further improvement of the technical scheme, when the side wall is installed, the gantry crane is firstly adopted to hoist and position the side wall block, then the vacuum adsorption component on the tensioning platform adsorbs the side wall block and then performs tensioning, and the gantry crane downwards hoists the side wall block after the side wall block is tensioned to the installation position.
As a further improvement of the technical scheme, the middle plate mounting trolley on the bottom trolley comprises a transverse moving supporting plate, a longitudinal moving supporting plate and a jacking supporting plate, wherein the transverse moving supporting plate and the longitudinal moving supporting plate are used for leveling when the middle plate is mounted, and the jacking supporting plate is used for conveying the middle plate to a mounting position.
As a further improvement of the technical scheme, the top trolley comprises a telescopic middle-layer working platform, a telescopic lower-layer working platform, a scissor-type lifting platform and a tensioning device, wherein the telescopic middle-layer working platform, the telescopic lower-layer working platform, the walking mechanism, the scissor-type lifting platform and the tensioning device are connected through trolley steel structures.
As a further improvement of the technical scheme, when the top plate is installed, the top of the side wall for installing the top plate is firstly tensioned through the top plate installation platform, then the top plate is hoisted to the upper side of an installation position through the gantry crane, then the top plate is moved to the installation position through the longitudinal moving supporting plate on the top plate installation platform, and meanwhile, the gantry crane hoists the top plate.
As a further improvement of the technical scheme, the center pillar trolley comprises a movable center pillar working platform, a walking mechanism, a clamping-shearing fork type lifting platform and a center pillar centering tool, and the movable center pillar working platform, the clamping-shearing fork type lifting platform and the center pillar centering tool are connected through steel structures.
As a further improvement of the technical scheme, the bottom trolley structure, the top trolley structure and the middle upright column trolley structure are all provided with a hydraulic system for driving and an electric control system for controlling.
The beneficial effects are that: the trolley assembling construction method is suitable for a flat-top rectangular assembling type local node cast-in-place assembling type subway station, has strong practicability, and can accurately adjust the position of each assembling plate block and improve the assembling quality by matching two bottom trolleys, one top trolley and one middle upright trolley with a subway station prefabricated part forming a ring frame. The cast-in-place assembly type subway station is suitable for a flat-top rectangular assembly type local node cast-in-place assembly type subway station, is high in practicability, can be used for accurately adjusting the positions of the assembled plates, and improves the assembling quality. In addition, the lower side wall, the middle plate and the middle screw rod can be assembled at one time in a streamlined operation mode, horizontal supporting force is provided for the enclosure structure, the reversing support is not needed, the utilization rate of the trolley is improved, and the construction efficiency is greatly improved.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic view of the construction state of the present invention;
FIG. 2 is a schematic view of the construction of the present invention S1;
FIG. 3 is a schematic view of the construction S2 of the present invention;
FIG. 4 is a schematic view of the construction S3 of the present invention;
FIG. 5 is a schematic view of the construction of S4 of the present invention;
FIG. 6 is a schematic view of the construction of the present invention S5;
FIG. 7 is a schematic view of the construction of S6 of the present invention;
FIG. 8 is a schematic view of the construction of S7 according to the present invention;
FIG. 9 is a schematic view of the construction of the present invention S8.
1. A bottom trolley; 2. a top trolley; 3. a middle column trolley; 4. a base plate; 5. a top plate; 6. a side wall; 7. a middle beam; 8. the center pillar.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1, the fabricated subway station is provided with a center sill 7 and a center pillar 8 in a longitudinal direction, the center pillar 8 is wet-jointed with a floor 4, the joint needs to be equal in strength to overlap the center sill 7, and other components are fabricated. A group of bottom plate 4, top plate 5, side wall 6, middle beam 7 and middle column 8 of the subway station form a ring frame, the subway station comprises a plurality of groups of spliced ring frames of bottom plate 4, top plate 5, side wall 6, middle beam 7 and middle column 8; the four ring frames in the subway station construction are in a group. The longitudinal direction of assembled subway station is provided with center sill 7 and center pillar 8, the pouring is connected between bottom plate 4 and the center pillar 8, and center pillar 8 and bottom plate 4 are wet and connect, and this joint needs wait for a period of time, waits that the joint strength of joint department has enough just can overlap joint center sill 7. The 8 column pitches of center pillar are four ring frames, in order to improve the efficiency of assembling, adopt streamlined platform truck assembly process, the platform truck can go to construction bottom plate 4 and center pillar 8 earlier promptly, utilizes strong time such as center pillar 8 to go to construction other relevant structures. Trolleys are arranged at the installation positions of the bottom plate 4, the top plate 5, the side walls 6, the middle beam 7 and the middle column 8, each trolley comprises a bottom trolley 1, a top trolley 2 and a middle column trolley 3, the bottom trolley 1 is provided with two trolleys, the two bottom trolleys 1 are respectively arranged in a space defined by the middle beam 7, the side walls 6 and the bottom plate 4, one bottom trolley 1 is respectively arranged at two sides of the middle column 8, the middle column trolley 3 is arranged between the two bottom trolleys 1, and the top trolley 2 is arranged in a space between the top plate 5, the side walls 6 and the middle beam 7; the subway station bottom plate 4, the top plate 5, the side walls 6, the middle beam 7 and the middle are constructed through a trolley, and a streamlined continuous cycle construction process is formed through grouping.
Referring to fig. 2 to 9, the construction of the subway station using the trolley comprises the following steps:
s1: hoisting the first group of ring frame bottom plates 4 and the second group of ring frame bottom plates 4 by using a gantry crane;
s2: mounting the last center column 8 of the first group of ring frames and the second ring frame by adopting a center pillar supporting platform hung in the middle of the bottom trolley 1;
specifically, the installation process of the center pillar 8: the portal crane lifts the center column 8 and basically places the center column in the installation position, and the bottom of the center column is a little away from the installation surface of the bottom plate 4. And moving the operating platforms on the two bottom trolleys 1 which are positioned at the two sides of the mounting position of the upright post, so that the central position between the two operating platforms is aligned with the central position of the middle upright post, and then locking the anti-longitudinal movement rack. After locking, the rotary platforms on two sides are opened, movable fixtures for adjustment are installed, the fixtures are enabled to be close to four corners of the center pillar by adjusting the screws, one or two fixtures are adjusted according to on-site surveying and mapping results, and then the screws of the other two or three fixtures are adjusted, so that the fixtures hold the center pillar tightly from four corners.
S3: constructing a lower side wall 6, a middle class, a middle beam 7 and a lead screw of the first group of ring frames by adopting a bottom trolley 1;
the concrete installation process of medium plate: the installation of medium plate is accomplished by installing the medium plate installation dolly on bottom platform truck 1, the medium plate installation dolly on bottom platform truck 1 is including indulging moving layer board, sideslip layer board and jacking layer board, the sideslip layer board with indulge the leveling that moves the layer board when being used for the medium plate installation, the jacking layer board is used for sending the medium plate into the mounted position. When the jacking device is installed, the jacking oil cylinder on the jacking supporting plate is started at first, and the jacking supporting plate is jacked up after a piston rod of the jacking oil cylinder extends out completely. Then the gantry crane hoists the middle plate and basically puts the middle plate at the installation position, and the distance between the bottom surface of the middle plate and the receiving surface of the supporting plate is about 50mm. At the moment, the longitudinal moving supporting plate is started, the middle plate is slowly pushed through the longitudinal moving pushing plate, the horizontal angle of the middle plate is adjusted in the air according to the data designed after mapping, and after the levelness of the mapping middle plate and the mounting position corresponds, the gantry crane is started to enable the middle plate to fall on the receiving panel of the middle plate transverse moving and jacking supporting plate. And then moving the transverse moving supporting plate according to the mapping result, and adjusting the middle plate to enable the middle plate to be basically centered with the installation position. Moving the longitudinal moving supporting plate to slowly send the middle plate into the mounting position, and stopping when the middle plate is about 50mm away from the mounting position; and then slowly descending a piston rod of the jacking oil cylinder, continuously surveying and mapping by an instrument in the process of slowly descending the middle plate, adjusting the middle plate by combining transverse movement, longitudinal movement, descending and the like, and gradually aligning the joint of the middle plate and the middle longitudinal beam and the joint of the middle plate and the 6 side walls.
When the side wall 6 is installed, the gantry crane is firstly adopted to hoist and position the side wall 6, then the vacuum adsorption assembly on the tensioning platform is used for adsorbing the side wall 6 and tensioning the side wall, and the gantry crane downwards hoists the side wall 6 after the side wall is tensioned to the installation position.
The installation of the side wall 6 is completed by a side wall 6 supporting platform and an operation tensioning platform which are hung outside the bottom trolley 1. The concrete installation process of the side wall 6 is as follows: and (4) hoisting the side walls 6 by using a gantry crane and placing the side walls at the basic installation position, wherein the distance from the bottoms of the side walls 6 to the upper surfaces of the bottom plates 4 is about 350-450 mm. The side wall 6 supporting platform and the follow-up frame in the platform are operated and adjusted, the push-pull lead screw on the vacuum sucker is started, the outer surface of the vacuum sucker is parallel to and close to the surface of the side wall 6, then the vacuum pump set is started, the vacuum sucker is automatically adsorbed on the surface of the side wall 6, and the follow-up frame is integrated with the side wall 6 through the vacuum sucker, the lead screw and the follow-up frame. And then, according to the mapping result, the position of the side wall 6 in the air is adjusted by adjusting the extending distance of the screw rod. After the position of the 6 side walls is accurately adjusted, the gantry crane can descend the 6 side walls, and the follow-up frame can move downwards and fall along with the 6 side walls, so that the posture of the 6 side walls in the air is unchanged, and the 6 side walls are accurately fallen.
The side walls 6 need to be tensioned after falling to the corresponding installation positions, the tensioning platforms of the side walls 6 mainly complete the tensioning work of the lower parts and the middle parts of the side walls 6, and after the middle plates are installed, grouted and solidified, the installation of force transmission screw rods on the two sides of the side walls 6 is completed, and the conversion of a stress system is completed.
S4: constructing upper side walls 6 and top plate 5 components of the first group of ring frames by adopting a top trolley 2;
s5: hoisting the bottom plate 4 of the third group of ring frames by using a gantry crane;
when the top plate 5 is installed, the top of the side wall 6 of the installed top plate 5 is tensioned through the top plate 5 installation platform, then the top plate 5 is hoisted to the upper side of an installation position through the gantry crane, then the top plate 5 is moved to the installation position through the longitudinal moving supporting plate on the top plate 5 installation platform, and meanwhile the gantry crane hoists the top plate 5. The top plate 5 is specifically mounted: firstly, the top of the side walls 6 on the two sides are tensioned by adjusting the tensioning platforms on the two sides of the top trolley 2, and the positions of the tops of the side walls 6 are adjusted, so that the side walls 6 and the top plate 5 are easier to align and install. And then, hoisting the top plate 5 to the mounting position of the top plate 5 by adopting a gantry crane and placing the top plate 5 at the basic mounting position, wherein the distance difference between the center of the top plate 5 and the axis is less than +/-100 mm, and the distance between the receiving surface at the bottom of the top plate 5 and the receiving surface on the jacking oil cylinder is about 50mm. The movable longitudinal moving supporting plate slowly pushes the top plate 5 through the longitudinal moving supporting plate arranged on the top plate 5 mounting platform, the horizontal angle of the top plate 5 is adjusted in the air according to a surveying and mapping result, and after the surveying and mapping are accurate, the gantry crane is adopted to drop the top plate 5 on the receiving surface of the jacking supporting plate of the top plate 5 mounting platform. And moving the traversing supporting plate according to the mapping result to enable the top plate 5 to correspond to the installation position. And then moving the longitudinal moving supporting plate to slowly feed the top plate 5 into the mounting position, continuously combining the surveying and mapping results in the slow descending process of the top plate 5, and gradually aligning the tenon of the top plate 5 to the tenon of the top plate 5 mortise and the tenon of the side wall 6 of the previous ring through the combination of transverse moving, longitudinal moving and descending actions of the gantry crane.
In addition, after the top plate 5 is located, the top plate 5 needs to be tensioned by moving tensioning platforms on two sides of the top trolley 2 and a tensioning platform in the middle.
S6: constructing a middle plate of a lower side wall 6 of the second group of ring frames and an outer middle lead screw of the middle plate side wall 6 by adopting the bottom trolley 1;
s7: upper side wall 6 and top plate 5 component for constructing second group ring frame by adopting top trolley 2
S8: hoisting the bottom plate 4 of the fourth group of ring frames by using a gantry crane;
s9: and sequentially constructing the residual ring frame groups of the subway station.
According to the steps, the middle plates of the third group of ring frames can be constructed continuously, the side walls 6 of the second group of ring frames are constructed by adopting the side wall 6 supporting platform and the operation tensioning platform outside the bottom trolley 1, and the middle beams 7 of the second group of ring frames are constructed by adopting the bottom trolley 1. Then the bottom plate 4 of the fifth ring set frame and the last center pillar 8 of the fifth ring set frame are constructed. And finally constructing a top plate 5 of the third group of ring frames. And the rest is done in sequence until the subway station consisting of a plurality of groups of ring frames is completed. Through the removal to the platform truck, make installation and platform truck combine, adopt bottom plate 4, 8 leading modes of center pillar to assemble, make full use of lower part platform truck, very big provide the efficiency of construction.
The bottom trolley 1 mainly comprises an upper working platform layer and a lower working platform layer, and other auxiliary construction structures are arranged on the upper working platform layer and the lower working platform layer. Specifically, the bottom trolley 1 comprises a telescopic middle upright post working platform, a telescopic side wall 6 working platform, a walking mechanism, an adjustable cantilever crane, a tensioning device, a side wall 6 vacuum chuck device and a side wall 6 springboard device, wherein the telescopic middle upright post working platform, the telescopic side wall 6 working platform, the walking mechanism, the adjustable cantilever crane, the tensioning device, the side wall 6 vacuum chuck device and the side wall 6 springboard device are all connected through a trolley steel structure. And a side wall 6 springboard is also arranged on the upper layer of the operation platform, the width of the side wall 6 springboard is 300mm, and the side wall 6 springboard can be folded and put down by using a rope.
The telescopic middle upright post operation platform is arranged on one side of the telescopic side wall 6 operation platform, and because different conditions of deviating from the central axis easily appear in the installation process of the middle upright post at the platform, the telescopic middle upright post operation platform can be telescopic, so that the telescopic middle upright post operation platform can penetrate through different positions and the middle upright post can be installed at a far position. The telescopic stroke of the telescopic platform of the telescopic middle upright post operation platform on the bottom trolley 1 is 1.6 meters, and the telescopic platform is generally driven by a hydraulic oil cylinder during telescopic operation.
When the telescopic side wall 6 operation platform works, the telescopic side wall 6 operation platform needs to run in the installed side wall 6 and also needs to extend out of the side wall 6 to work, so that the telescopic side wall 6 operation platform can also be telescopic, the stroke of the telescopic platform is 1.6 meters, and the telescopic platform is generally driven by a hydraulic oil cylinder during telescopic operation.
The side wall 6 vacuum chuck device is matched with the adjustable suspension arm. The preferable upper-layer platform is provided with a side wall 6 vacuum sucker and an adjustable suspension arm, and the lower-layer platform is provided with a sucker side wall 6 vacuum sucker and an adjustable suspension arm. The side wall 6 is connected with a vacuum pump through a vacuum sucker, the suction is controlled by a vacuum pump set, and the expansion is controlled by an oil cylinder. The perpendicularity of the side wall 6 can be assisted to be maintained after the side wall 6 is basically located.
The running mechanisms are wheels arranged at the bottoms of the two operation platforms, and rail clamping pincers are further arranged on the wheels, so that the running mechanisms are provided with a self-controller for parking braking on one hand when in construction operation, and the rail clamping pincers are arranged at each running mechanism for double parking braking, and can also play a safety function of preventing the trolley from tipping on the wheels.
The top trolley 2 is provided with an upper layer of construction table surface and a lower layer of construction table surface, and can be used for tensioning seven tensioning holes with different heights on the top module and the side wall 6; and the track of roof 5 platform truck is installed on the support of two side walls 6, has guaranteed that the atress of medium plate is good. The top trolley 2 comprises a telescopic middle-layer working platform, a telescopic lower-layer working platform, a scissor-type lifting platform and a tensioning device, wherein the telescopic middle-layer working platform, the telescopic lower-layer working platform, the walking mechanism, the scissor-type lifting platform and the tensioning device are all connected through trolley steel structures.
Wherein the scissor type lifting platform is arranged on three layers of construction table surfaces of the top trolley 2, seven scissor type lifting platforms are preferably arranged on the three layers of construction table surfaces, and the seven scissor type lifting platforms correspond to seven tension holes of the top plate 5 and the side wall 6. The bottom of the scissor lift platform is supported by a lift structure, preferably hydraulically driven and link supported. The height of the scissor-type lifting platform is only 400mm after descending, and the height can reach 1.5 m after rising. The universal wheels and the locking devices are further mounted below the scissor type lifting platform, the universal wheels and the locking devices can be moved and fixed on the platform, tensioning holes are conveniently aligned, and tensioning machines are placed on the lifting platform. Because top platform truck 2 has adopted scissors fork lift platform, after cutting the fork platform and descend, in 5 platforms of roof wholly can the immigration roof 5, only the railing is about 200mm in 5 outsides of roof, is difficult to influence the hoist and mount of medium plate.
The center pillar trolley 3 comprises a movable center pillar working platform, a walking mechanism, a clamping-shearing fork type lifting platform and a center pillar righting tool, and the movable center pillar working platform, the clamping-shearing fork type lifting platform and the center pillar righting tool are all connected through a steel structure.
When the movable center pillar working platform is used for construction, the stand pillars are easy to deviate from the center shaft in different directions in the process of lowering, so that the platform for positioning the center pillar needs to be provided with a transverse moving mechanism for adjusting the stand pillars. The transverse moving mechanism consists of a platform roller and an electric push rod, and preferably, the stroke of the electric push rod is 1.5 meters. The upright post is positioned by the transverse moving mechanism and then fastened by a screw to eliminate the gap between the roller and the track. Lifting structures are installed on two sides of the middle upright post working platform, preferably, the lifting structures can rise by 4m and are used for installing bolts of the middle longitudinal beam and righting the middle upright post. The center pillar centering tool is installed on the scissor fork lifting platform, and the hydraulic cylinder controls the telescopic position of the clamp to center the center pillar.
In addition, the bottom trolley 1 structure, the top trolley 2 structure and the middle upright column trolley 3 structure are all provided with a hydraulic system for driving and an electric control system for controlling.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A subway station node trolley construction method with a flat top and columns is characterized in that a group of bottom plate, top plate, side wall, middle beam and middle column of the subway station form a ring frame, and the subway station comprises a plurality of groups of spliced bottom plate, top plate, side wall, middle beam and middle column ring frames; in the construction of the subway station, four ring frames are in one group, and the subway station is formed by constructing a plurality of groups of ring frames; the trolley is arranged at the installation positions of the bottom plate, the top plate, the side walls, the middle beam and the middle column, the trolley comprises a bottom trolley, a top trolley and a middle upright column trolley, the bottom trolley is provided with two trolleys, the two bottom trolleys are respectively arranged in a space defined by the middle beam, the side walls and the bottom plate, the two sides of the middle column are respectively provided with one bottom trolley, the middle upright column trolley is arranged between the two bottom trolleys, and the top trolley is arranged in a space between the top plate, the side walls and the middle beam; the subway station bottom plate, the top plate, the side walls, the middle beam and the middle beam are constructed through the trolley, and a continuous and cyclic construction process is formed through grouping.
2. The construction method of the subway station node trolley with the flat top and the columns as claimed in claim 1, wherein the construction of the subway station by adopting the continuous circulation of the trolley comprises the following steps:
s1: hoisting the first group of ring frame bottom plates and the second group of ring frame bottom plates by using a gantry crane;
s2: mounting the last middle column of the first group of ring frames and the second group of ring frames by adopting a middle upright post supporting platform hung in the middle of the bottom trolley;
s3: constructing the lower side wall, the middle class, the middle beam and the lead screw of the first group of ring frames by adopting a bottom trolley;
s4: constructing upper side walls and top plate components of the first group of ring frames by adopting a top trolley;
s5: hoisting the bottom plate of the third group of ring frames by using a gantry crane;
s6: constructing a lower side wall middle plate and a middle plate side wall outer middle screw rod of the second group of ring frames by adopting a bottom trolley;
s7: constructing upper side walls and top plate components of the second group of ring frames by adopting a top trolley;
s8: hoisting the bottom plate of the fourth group of ring frames by using a gantry crane;
s9: and sequentially constructing the residual ring frame groups of the subway station.
3. The construction method of the flattop pillared subway station trolley according to claim 2, wherein the bottom trolley comprises a telescopic middle upright post working platform, a telescopic side wall working platform, a walking mechanism, an adjustable cantilever crane, a tensioning device, a side wall vacuum chuck device and a side wall springboard device, and the telescopic middle upright post working platform, the telescopic side wall working platform, the walking mechanism, the adjustable cantilever crane, the tensioning device, the side wall vacuum chuck device and the side wall springboard device are all connected through a trolley steel structure; and a middle plate mounting trolley is further arranged on the bottom trolley.
4. The method as claimed in claim 3, wherein in S3 and S6, the middle plates of the first and second ring frames are constructed by using the middle plate mounting trolley on the bottom trolley, the lower side walls and the middle plate side walls of the first and second ring frames are constructed by using the side wall supporting platform and the operation tension platform outside the bottom trolley, and the middle beams of the first and second ring frames are constructed by using the bottom trolley.
5. The construction method of a subway station trolley with a flat top and columns as claimed in claim 4, wherein said side walls are installed by using a gantry crane to hoist and position said side wall blocks, then said side wall blocks are tensioned after being adsorbed by a vacuum adsorption component on a tensioning platform, and said gantry crane hoists said side wall blocks downwards after being tensioned to the installation position.
6. The method as claimed in claim 4, wherein the middle plate mounting trolley on the bottom trolley comprises a traverse supporting plate, a longitudinal supporting plate and a jacking supporting plate, the traverse supporting plate and the longitudinal supporting plate are used for leveling when the middle plate is mounted, and the jacking supporting plate is used for conveying the middle plate into a mounting position.
7. The method as claimed in claim 2, wherein the top trolley comprises a telescopic middle layer working platform, a telescopic lower layer working platform, a scissor lift platform and a tensioning device, and the telescopic middle layer working platform, the telescopic lower layer working platform, the walking mechanism, the scissor lift platform and the tensioning device are connected through a trolley steel structure.
8. The construction method of a flattop and pillar subway station node trolley as claimed in claim 7, wherein said top plate is installed by first tensioning the top of the side wall of the installed top plate through the top plate installation platform, then hoisting the top plate above the installation place by using a gantry crane, then moving the top plate to the installation place by using a longitudinal moving support plate on the top plate installation platform, and simultaneously hoisting the top plate by using the gantry crane.
9. The construction method of the flattop and pillar subway station node trolley as claimed in claim 2, wherein said center pillar trolley comprises a movable center pillar work platform, a walking mechanism, a fork-type lifting platform and a center pillar centering fixture, and said movable center pillar work platform, said fork-type lifting platform and said center pillar centering fixture are all connected by steel structure.
10. A method as claimed in claim 2, wherein the bottom, top and middle standing pillar trolley structures are provided with hydraulic systems for driving and electric control systems for controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272334.5A CN115559347A (en) | 2022-10-18 | 2022-10-18 | Construction method of subway station node trolley with flat top and columns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211272334.5A CN115559347A (en) | 2022-10-18 | 2022-10-18 | Construction method of subway station node trolley with flat top and columns |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115559347A true CN115559347A (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211272334.5A Pending CN115559347A (en) | 2022-10-18 | 2022-10-18 | Construction method of subway station node trolley with flat top and columns |
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| Country | Link |
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| CN (1) | CN115559347A (en) |
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