CN114045751A - Pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly - Google Patents
Pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly Download PDFInfo
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- CN114045751A CN114045751A CN202111342806.5A CN202111342806A CN114045751A CN 114045751 A CN114045751 A CN 114045751A CN 202111342806 A CN202111342806 A CN 202111342806A CN 114045751 A CN114045751 A CN 114045751A
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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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Abstract
The invention discloses a pile-beam integrated construction method for pipe pile foundation construction and bent cap beam plate assembly, which comprises the following steps: step S1: piling a guide hole; step S2: hoisting and transferring the tubular pile; step S3: pile feeding; step S4: driving a first section of pipe pile; step S5: welding, piling and cutting the pile; step S6: driving a second whole pile; step S7: transferring the cover beam; step S8: pouring and feeding; step S9: transferring the double-limb T-shaped beam; step S10: and (5) falling the beam. The invention relates to the technical field of bridge construction. The construction precision of the prestressed pipe pile and the installation precision of the cover beam are improved by the operation of the temporary supporting legs, the piling device, the front auxiliary supporting legs and other related equipment and the adoption of a corresponding construction technical method, the construction operability continuity is improved, the working procedure time is shortened, the efficiency is improved, and the occupation of a sidewalk and a construction site is reduced.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a pile-beam integrated construction method for pipe pile foundation construction and capping beam-slab assembly.
Background
Pile beam construction steps in the bridge construction include a lot, and including the design of pile beam integration bridging machine construction, to different construction environment and the structure that corresponds, superstructure form is two T roof beams of assembled prestressed concrete, and substructure form is assembled reinforced concrete bent cap, and foundation structure is prefabricated tubular pile foundation, has the problem in some specific construction occasions:
(1) the super-large diameter prestressed pipe pile is arranged to penetrate through a thick gravel layer and is exposed to strong weathering for three meters, and a hole leading procedure is required to be additionally arranged.
(2) The requirement on the positioning and verticality of the tubular pile is extremely high, the pile driving frame arranged at the front end of the bridge erecting machine needs to have a horizontal position and verticality adjusting function, and a pile driving frame moving flat car needs to be added to connect the pile driving frame with the bridge erecting machine through a pile driving frame translation trolley.
(3) After the positioning of the bent cap is finished, pouring an ultra high performance concrete UHPC material, and supporting and stressing can be carried out after a certain time.
(4) The original length of the pile driving frame is longer.
Disclosure of Invention
The invention provides a pile-beam integrated construction method for pipe pile foundation construction and bent cap beam plate assembly, which solves the following problems.
(1) The super-large diameter prestressed pipe pile is arranged to penetrate through a thick gravel layer and is exposed to strong weathering for three meters, a hole leading procedure is required to be added, and a pile machine and a drilling device are combined to share one pile frame. The whole set of pipe pile construction process is combined with the pile-beam integrated machine.
(2) Aiming at the single pile foundation structure form of the pile-connected capping beam, the requirements on the positioning and verticality of the pipe pile are extremely high, the pile driving frame arranged at the front end of the bridge erecting machine needs to have a horizontal position and verticality adjusting function, a pile driving frame moving flat car needs to be added, and the pile driving frame is connected with the bridge erecting machine through a pile driving frame translation trolley. A hydraulic cylinder and a hydraulic support frame are arranged on the translation trolley to meet the requirements of horizontal position adjustment and verticality adjustment.
(3) After the positioning of the bent cap is finished, pouring an ultra high performance concrete UHPC material, and supporting and stressing can be carried out after a certain time. In order to ensure the construction efficiency, the main truss of the bridge girder erection machine is lengthened, the number of operation holes on an operation surface is increased, the equal-strength time of the capping beam is utilized, the working procedures of girder plate erection of other hole sites or transverse movement of the bridge girder erection machine are carried out, and the equal-strength time influence of UHPC materials is reduced.
(4) The pile driver frame is long in original length, and in order to reduce the gravity center of the pile driver frame relative to the bridge girder erection machine, the supporting legs of the bridge girder erection machine are adopted to increase the height of the main truss at the front end of the bridge girder erection machine and appropriately reduce the length of the pile driver frame, so that the relative gravity center of the pile driver frame is reduced, and the stability of the pile driver frame and even the whole bridge girder erection machine is guaranteed.
In order to achieve the purpose, the invention is realized by the following technical scheme: a pile-beam integrated construction method for pipe pile foundation construction and bent cap beam plate assembly comprises the following steps:
step S1: piling a guide hole;
step S2: hoisting and transferring the tubular pile;
step S3: pile feeding;
step S4: driving a first section of pipe pile;
step S5: welding, piling and cutting the pile;
step S6: driving a second whole pile;
step S7: transferring the cover beam;
step S8: pouring and feeding;
step S9: transferring the double-limb T-shaped beam;
step S10: the overhead traveling crane runs in place, and the beam is transversely moved to be aligned and dropped;
step S11: and the other two-limb T-shaped beam is erected in the same way.
As a further scheme of the invention: step S1 specifically includes: the piling device conducts hole guiding operation and penetrates through the gravel layer to a position 1m above the elevation of the hole bottom.
As a further scheme of the invention: step S2 specifically includes: the transport platform transports a plurality of tubular piles to the right place, and the second jack-up overhead traveling crane utilizes the tray to hoist a plurality of tubular piles and place on the roof beam face, and the transport platform moves back to the field.
As a further scheme of the invention: step S3 specifically includes: and the two first crane cranes hoist the single-section pipe pile to feed the pile for the pile driving device.
As a further scheme of the invention: step S4 specifically includes: a pile front end is placed on the platform with a first overhead traveling crane, pile device bundle stake, promotion, another first overhead traveling crane limit descends before going, feeds the stake and accomplishes until promoting, and two first overhead traveling cranes retreat, and pile device carries out vertically, transversely counterpoint and the straightness adjustment that hangs down, and after the adjustment was accomplished, the operation of piling was carried out, and the completion is first section of tubular pile is beaten and is established.
As a further scheme of the invention: step S5 specifically includes: and after other tubular piles are lifted in place, welding and splicing the other tubular piles with the previous section of tubular pile to complete the pile driving operation, and cutting the pile after the operation is completed to complete the whole pile operation.
As a further scheme of the invention: step S6 specifically includes: and (5) the pile driving device transversely moves in place, and the same method is adopted to finish the pile driving operation of the second whole pile on the left side.
As a further scheme of the invention: step S7 specifically includes: the transportation platform transports the bent cap to the right position, the second hoisting crown block hoists the bent cap, and the transportation platform moves back to the field.
As a further scheme of the invention: step S8 specifically includes: and the second hoisting crane runs in place, rotates and aligns the cover falling beam, and pours UHPC material.
As a further scheme of the invention: step S9 specifically includes: the transportation platform transports the double-limb T-shaped beam to the right position, the second hoisting overhead traveling crane hoists the double-limb T-shaped beam, and the transportation platform moves out of the field.
As a further scheme of the invention: the lifting of the first lifting crown block and the second lifting crown block are respectively 10T and 60T.
As a further scheme of the invention: the main beam is designed into a double-main-beam triangular truss structure and is formed by connecting two truss main beams with cross beams at two ends, a single truss main beam is formed by an upper chord, a lower chord and web members, a main trolley track is laid on the upper chord, a hanging wheel and a supporting wheel track are laid on upper and lower cover plates of the lower chord, an auxiliary trolley track is laid on an upper cover plate of the inner lower chord, a cross connection is arranged on the lower chord of the truss at a corresponding position, and a vertical insertion hole in the cross connection is used for locking a supporting leg and a main beam bolt.
As a further scheme of the invention: the pile driving device is located at the front end of a truss main beam of the bridge girder erection machine and behind the temporary supporting legs, and mainly comprises a longitudinal moving beam assembly, a transverse moving beam assembly, a top pulley frame, a truss upright post, an inclined strut assembly, a hydraulic winch, a power hammer, a drilling machine, a pile stabilizing and connecting platform, a drill rod connecting platform, a drill pipe descending protective cylinder and a power pump station assembly.
As a further scheme of the invention: the upper part of the main beam is provided with 1 transport crown block which is a 60-ton lifting trolley and consists of a longitudinal moving crown block, a transverse moving crown block and a rotary lifting appliance assembly, the longitudinal moving, transverse moving, lifting and rotating operation under the condition of heavy load of a beam piece can be realized, the transport crown blocks can only move in a lower area at the rear section of the main truss, the lower part of the main beam is provided with two transport crown blocks which are 10T lifting crown blocks, the two crown blocks are matched for hoisting and transporting a prefabricated pipe pile and are matched with a pile driver for feeding the beam, the front end of the pipe pile is placed on a pile driver platform by the front 10T crown block, the pile is bundled by a lifting device of the pile driver, and the front 10T crown block is loosened; then the pile driver lifts the front end of the pipe pile, the rear 10T crown block descends along the forward traveling side until the pile lifting and feeding are completed, the two transportation crown blocks move in the lower area of the main truss and can move to the foremost end, and the transportation crown block has the self-locking function of longitudinally moving along the main truss and in-place; each overhead traveling crane is provided with a crane and has the functions of transverse movement along the overhead traveling crane and in-place self-locking; the crane hoisting mechanism has the function of in-place locking.
As a further scheme of the invention: the lifting appliance is provided with a plurality of adjusting oil cylinders, the leveling function of the beam piece is realized through the transverse adjusting oil cylinders and the longitudinal adjusting oil cylinders, 360-degree rotation of the lifting appliance is realized through the transmission of a speed reducing motor and a one-stage open gear, the position of a suspender is stepless adjustable, the suspender can be adjusted to a corresponding position according to hole positions on each beam on site, and the lifting frame is provided with hoisting positions of a double-limb T-shaped beam and a cover beam, so that the lifting of two beam types is realized.
As a further scheme of the invention: the front auxiliary supporting leg is of a portal structure and comprises a hanging wheel group, a transverse moving device assembly, an upper cross beam, an inner column body, an inclined strut, a conversion cross beam, a connecting beam, a spiral jacking device, a pile embracing device and the like, wherein the hanging wheel group comprises a driving hanging wheel and a driven hanging wheel, the driving hanging wheel on the outer side is driven by a motor to realize self-walking of the supporting leg, and the transverse moving device assembly can meet the requirement of transverse positive and negative 200mm adjustment and can adapt to a curved frame beam.
As a further scheme of the invention: the front supporting leg mainly comprises a supporting and hanging wheel system, a telescopic upright post, a cross beam, a transverse moving trolley and the like, wherein the supporting and hanging wheel system comprises supporting wheels, hanging wheels and locking bolts, the supporting wheels mainly play a role of supporting a main beam, load is transferred to the cross beam when the main beam is erected, and longitudinal moving driving force is provided when the main beam changes span; the hanging wheel is mainly used for hanging the supporting legs and driving the supporting legs to longitudinally move on the main beam so as to switch the supporting positions of the supporting legs; the locking bolt has the effects that when the span is changed or the whole machine moves, the supporting legs are fixedly connected with the main beam, the telescopic upright posts are of inverted triangle structures, the posture of the whole machine can be adjusted in a telescopic mode, ramp via holes are met, the root parts of the telescopic upright posts are provided with rotatable pad boxes, when curve via holes are formed, the machine arms can rotate relative to the front supporting leg supporting cross beams, the rotatable pad boxes are stacked above the transverse moving supports, the transverse moving supports are in contact with cross beam rails through sliding plates, the transverse moving supports are driven to transversely move on the cross beams by the aid of the fixed chain driving mechanisms, 8 oil adjusting tops are arranged below the cross beams, the stroke is 400mm, the requirement of leveling of 20 thousandth transverse slopes of the cross beams can be met, the oil tops are thread locking oil cylinders, and pressure relief of the oil cylinders can be prevented.
As a further scheme of the invention: the middle supporting leg is of a lifting structure, two sides of the middle supporting leg are provided with two upright columns side by side, namely four upright columns are arranged, the upright columns on the two sides are respectively and rigidly connected into a whole, and three corresponding transverse links are arranged; the main structure of the device comprises a change gear assembly, an outer sleeve, a stand column, a lifting device, a transverse moving device, oil cylinder supporting legs, a lower cross beam, a pile stepping pad box assembly and the like, wherein the change gear runs along left and right upper rails of a lower chord of a main beam when a hole is formed in a middle supporting leg, a main beam supporting pad box is connected to a change gear box body, a rubber plate is arranged above the change gear box body and supported on a rail below a lower cover plate of the main beam, so that the support during the erection of a prefabricated part and the main beam hole is realized, and the middle supporting leg is hinged with the main beam through pin shafts on two sides of the change gear box to prevent the main beam from moving longitudinally during bridging operation; when the hole is drilled, the pin shaft is pulled out to be connected and released with the main beam, and the middle support leg automatically drills the hole; the sideslip device can realize the requirement of curve frame beam, and the lower beam is installed and is stepped on a stake pad case, and well landing leg realizes supporting conversion and hugs tightly the tubular pile when passing through the hole to the tubular pile position by the bent cap.
As a further scheme of the invention: the rear supporting leg is of a front-rear double-portal structure and comprises a hanging wheel set, a riding wheel set, a longitudinal movement driving mechanism, a rotary disc, a fixed disc, supporting legs, a lower transverse connecting beam, a transverse movement driving mechanism, a transverse movement track beam, a spiral self-locking oil cylinder and the like, the rear supporting leg is provided with a front row of upright columns and a rear row of upright columns, namely four upright columns are arranged on one side, and the upper parts of the four upright columns are rigidly connected into a whole through the fixed disc; the fixed disc is connected with the rotary disc through a vertical pin, the two sides of the rotary disc are provided with a support and a hanging wheel set, and the support wheel box is provided with an automatic vertical pin which can be locked with the main beam; the hanging wheel is used for walking along a track on a lower ear beam of a main beam lower chord when the rear supporting leg passes through a hole, the riding wheel is supported on the track below the main beam lower chord to realize the support and drive when the prefabricated part and the main beam pass through the hole, the left and right eight stand columns are rigidly connected into a whole through the lower tie beam, the transverse moving drive device is fixedly connected with the lower tie beam, and the bottom of the lower tie beam is provided with a sliding plate; through the driving chain wheel and the chain, the rear supporting leg can realize amplitude variation operation on the transverse moving track beam, and the bottom of the transverse moving track beam is supported on the beam surface through the spiral self-locking oil cylinder.
As a further scheme of the invention: during bridging operation, the rear support leg is hinged with the main beam through a vertical shaft of the riding wheel group to prevent the main beam from moving longitudinally; when the hole is drilled, the vertical shaft is pulled out to be connected with the main beam and released, the main beam or the rear supporting leg is driven to be drilled with the hole, and the rear supporting leg is matched with the front supporting leg transverse moving device to realize the complete machine load transverse moving.
The invention provides a pile-beam integrated construction method for pipe pile foundation construction and bent cap beam plate assembly.
Compared with the prior art, the method has the following beneficial effects:
1. the construction precision of the prestressed pipe pile and the installation precision of the cover beam are improved by the operation of the temporary supporting legs, the piling device, the front auxiliary supporting legs and other related equipment and the adoption of a corresponding construction technical method, the construction operable continuity is improved, the working procedure time is shortened, the efficiency is improved, and the occupation of a sidewalk and a construction site is reduced.
2. Through increasing big dipper positioning system in all-in-one design research and development, measures such as pile frame is indulged horizontal straightness control appearance, main truss sensor can effectively gather all kinds of information data, including the accuracy of the straightness that hangs down, the horizontal position of hammering number, penetration and tubular pile in the pile foundation is squeezed into, reinforcing equipment pile's precision.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a temporary leg according to the present invention;
FIG. 3 is a schematic view of a front leg configuration of the present invention;
FIG. 4 is a schematic view of a leg of the present invention;
fig. 5 is a schematic view of the rear leg structure of the present invention.
In the figure: 1. a temporary leg; 2. a pile driving device; 3. a front auxiliary leg; 4. a front leg; 5. a main beam; 6. a first crane; 7. a second hoisting overhead traveling crane; 8. a rear leg; 9. and a middle support leg.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-5, a pile-beam integrated construction method for pipe pile foundation construction and cap beam-slab assembly includes the following steps:
step S1: piling a guide hole;
step S2: hoisting and transferring the tubular pile;
step S3: pile feeding;
step S4: driving a first section of pipe pile;
step S5: welding, piling and cutting the pile;
step S6: driving a second whole pile;
step S7: transferring the cover beam;
step S8: pouring and feeding;
step S9: transferring the double-limb T-shaped beam;
step S10: the overhead traveling crane runs in place, and the beam is transversely moved to be aligned and dropped;
step S11: and the other two-limb T-shaped beam is erected in the same way.
Wherein, step S1 specifically includes: the piling device 2 is used for hole leading operation and penetrates through the gravel layer to a position 1m above the elevation of the hole bottom.
Step S2 specifically includes: the transport platform transports a plurality of tubular piles in place, and the second hoisting overhead traveling crane 7 utilizes the tray to hoist a plurality of tubular piles to place on the roof beam face, and the transport platform moves back to the field.
Step S3 specifically includes: and the two first crane cranes 6 hoist the single-section pipe pile to feed the pile driving device 2.
Step S4 specifically includes: a first overhead traveling crane 6 puts the tubular pile front end on the platform, and pile device 2 bundles the stake, promotes, and 6 limit advancing of another first overhead traveling crane descend, and the stake is fed to the completion until promoting, and two first overhead traveling cranes 6 retreat together, and pile device 2 carries out vertically, transversely counterpoint and the straightness adjustment that hangs down, and the adjustment is accomplished the back, carries out the pile operation, accomplishes first section tubular pile and beats and establish.
Step S5 specifically includes: and after other tubular piles are lifted in place, welding and splicing the other tubular piles with the previous section of tubular pile to complete the pile driving operation, and cutting the pile after the operation is completed to complete the whole pile operation.
Step S6 specifically includes: and the pile driving device 2 transversely moves in place, and the same method is adopted to finish the pile driving operation of the second whole pile on the left side.
Step S7 specifically includes: the transportation platform transports the bent cap in place, the second hoisting overhead crane 7 hoists the bent cap, and the transportation platform moves back to the field.
Step S8 specifically includes: and the second hoisting overhead traveling crane 7 runs in place, rotates, aligns and falls the capping beam, and pours UHPC material.
Step S9 specifically includes: the transportation platform transports the double-limb T-shaped beam in place, the second hoisting overhead crane 7 hoists the double-limb T-shaped beam, and the transportation platform moves out of the field.
The lifting of the first lifting crown block 6 and the second lifting crown block 7 is 10T and 60T, respectively.
The girder 5 is designed into a double-girder triangular truss structure (84.6m multiplied by 14.1m multiplied by 5.29m (3.69) m) and consists of two truss girders and connecting cross beams at two ends, a single truss girder 5 consists of an upper chord, a lower chord and web members, a main trolley track is laid on the upper chord, hanging wheels and riding wheel tracks are laid on the upper and lower cover plates of the lower chord, an auxiliary trolley track is laid on the upper cover plate of the inner lower chord, a cross joint is arranged at the lower chord of the truss at the corresponding position, and a vertical jack on the cross joint is used for locking a pin of a supporting leg and the girder 5.
The pile driving device 2 is located at the front end of a truss main beam of the bridge girder erection machine, and behind the temporary supporting leg 1, and mainly comprises a longitudinal moving beam assembly, a transverse moving beam assembly, a top pulley frame, a truss upright post, an inclined strut assembly, a hydraulic winch, a power hammer, a drilling machine, a pile stabilizing and connecting platform, a drill rod connecting platform, a drill pipe descending protective cylinder and a power pump station assembly.
The upper part of the main beam 5 is provided with 1 transport crown block which is a 60-ton lifting trolley and consists of a longitudinal moving crown block, a transverse moving crown block and a rotary lifting appliance assembly, the longitudinal moving, transverse moving, lifting and rotating operation under the condition of heavy load of a beam piece can be realized, the crane can only move in a lower area of the rear section of the main truss, the lower part of the main beam 5 is provided with two transport crown blocks which are 10T lifting crown blocks, the two crown blocks are matched for hoisting and transporting a prefabricated pipe pile and matched with a pile driver for feeding the beam, the front 10T crown block places the front end of the pipe pile on a pile driver platform, the pile driver is used for bundling the pile, and the front 10T crown block is loosened; then the pile driver lifts the front end of the pipe pile, the rear 10T crown block descends along the forward traveling side until the pile lifting and feeding are completed, the two transportation crown blocks move in the lower area of the main truss and can move to the foremost end, and the transportation crown block has the self-locking function of longitudinally moving along the main truss and in-place; each overhead traveling crane is provided with a crane and has the functions of transverse movement along the overhead traveling crane and in-place self-locking; the crane hoisting mechanism has the function of in-place locking.
The lifting appliance is provided with a plurality of adjusting oil cylinders, the leveling function of the beam piece is realized through the transverse adjusting oil cylinders and the longitudinal adjusting oil cylinders, 360-degree rotation of the lifting appliance is realized through the transmission of a speed reducing motor and a one-stage open gear, the position of a suspender is stepless adjustable, the suspender can be adjusted to a corresponding position according to hole positions on each beam on site, and the lifting frame is provided with hoisting positions of a double-limb T-shaped beam and a cover beam, so that the lifting of two beam types is realized.
The front auxiliary supporting leg 3 is of a portal structure and comprises a hanging wheel group, a transverse moving device assembly, an upper cross beam, an inner column body, an inclined strut, a conversion cross beam, a connecting beam, a spiral jacking device, a pile embracing device and the like, wherein the hanging wheel group comprises a driving hanging wheel and a driven hanging wheel, the driving hanging wheel on the outer side is driven by a motor to realize self-walking of the supporting leg, and the transverse moving device assembly can meet the requirement of transverse positive and negative 200mm adjustment and can adapt to a curved frame beam.
The front supporting leg 4 mainly comprises a supporting and hanging wheel system, a telescopic upright post, a cross beam, a transverse moving trolley and the like, wherein the supporting and hanging wheel system comprises supporting wheels, hanging wheels and locking bolts, the supporting wheels mainly play a role of supporting the main beam 5, the load is transferred to the cross beam when the main beam 5 is erected, and longitudinal moving driving force is provided when the main beam 5 changes span; the change gear is mainly used for hanging the supporting legs, and driving the supporting legs to longitudinally move on the main beam 5 so as to switch the supporting positions of the supporting legs; the locking bolt has the advantages that when the span is changed or the whole machine moves, the supporting legs are fixedly connected with the main beam 5, the telescopic upright posts are of inverted triangle structures, the posture of the whole machine can be adjusted in a telescopic mode, ramp via holes are met, the root parts of the telescopic upright posts are provided with the rotatable pad boxes, when curve via holes are formed, the machine arms can rotate relative to the supporting cross beam of the front supporting legs 4, the rotatable pad boxes are stacked above the transverse moving support, the transverse moving support is in contact with the cross beam rail through a sliding plate, the transverse moving support is driven to transversely move on the cross beam by the fixed chain driving mechanism, 8 adjusting oil tops are arranged below the cross beam, the stroke is 400mm, the leveling requirement of the cross beam on a transverse 20 thousandth transverse slope can be met, the oil tops are thread locking oil cylinders, and pressure relief of the oil cylinders can be prevented.
The middle supporting leg 9 is of a telescopic structure, two sides of the middle supporting leg are provided with two upright columns side by side, namely four upright columns, the upright columns on the two sides are respectively and rigidly connected into a whole, and three corresponding transverse links are arranged; the main structure of the device comprises a change gear assembly, an outer sleeve, a stand column, a lifting device, a transverse moving device, oil cylinder supporting legs, a lower cross beam, a pile stepping pad box assembly and the like, wherein the change gear is used for walking along left and right upper rails of a lower chord of a main beam when a hole is formed in a middle supporting leg 9, a main beam supporting pad box is connected to a change gear box body, a rubber plate is arranged above the change gear box body and supported on a rail below a lower cover plate of the main beam, so that the support when the prefabricated part and the main beam 5 are erected with the hole is realized, and the middle supporting leg 9 is hinged with the main beam 5 through pin shafts on two sides of the change gear box to prevent the main beam 5 from moving longitudinally during bridging operation; when the hole is drilled, the pin shaft is pulled out to be connected and released with the main beam 5, and the middle supporting leg 9 automatically drills the hole; the sideslip device can realize the requirement of curve frame beam, and the lower beam is installed and is stepped on a stake pad case, and well landing leg 9 realizes supporting conversion and hugs tightly the tubular pile when passing through the hole to the tubular pile position by the bent cap.
The rear support leg 8 is of a front-rear double-portal structure and comprises a hanging wheel set, a riding wheel set, a longitudinal movement driving mechanism, a rotary table, a fixed disc, support legs, a lower transverse connecting beam, a transverse movement driving mechanism, a transverse movement track beam, a spiral self-locking oil cylinder and the like, the rear support leg 8 is provided with a front row of upright columns and a rear row of upright columns, namely four upright columns are arranged on one side, and the upper parts of the four upright columns are rigidly connected into a whole through the fixed disc; the fixed disc is connected with the rotary disc through a vertical pin, the two sides of the rotary disc are provided with a support and a hanging wheel set, and the support wheel box is provided with an automatic vertical pin which can be locked with the main beam 5; the hanging wheel is used for walking along a track on a lower ear beam of a main beam lower chord when the rear supporting leg 8 passes through a hole, the riding wheel is supported on the track below the main beam lower chord to realize the support and drive when the prefabricated part and the main beam 5 pass through the hole, the left and right eight stand columns are rigidly connected into a whole through the lower connecting beam, the transverse moving drive device is fixedly connected with the lower connecting beam, and the bottom of the lower connecting beam is provided with a sliding plate; through the driving chain wheel and the chain, the rear supporting leg 8 can realize amplitude variation operation on the transverse moving track beam, and the bottom of the transverse moving track beam is supported on the beam surface through the spiral self-locking oil cylinder.
During bridging operation, the rear supporting legs 8 are hinged with the main beam 5 through the vertical shafts of the riding wheel sets so as to prevent the main beam 5 from moving longitudinally; when the hole is drilled, the vertical shaft is pulled out to be connected with the main beam 5 and released, the main beam 5 or the rear support leg 8 is driven to be drilled, and the rear support leg 8 is matched with the front support leg 4 transverse moving device to realize the complete machine load transverse moving.
Wherein inside big dipper positioning system that increases, pile frame is indulged and is transversely hung down straightness control appearance, means such as main truss sensor can effectively gather all kinds of information data, including the accuracy of straightness that hangs down, the horizontal position of hammering number, penetration and tubular pile in the pile foundation is squeezed into, reinforcing equipment pile accuracy.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A pile-beam integrated construction method for pipe pile foundation construction and bent cap beam plate assembly is characterized in that: the method comprises the following steps:
step S1: piling a guide hole;
step S2: hoisting and transferring the tubular pile;
step S3: pile feeding;
step S4: driving a first section of pipe pile;
step S5: welding, piling and cutting the pile;
step S6: driving a second whole pile;
step S7: transferring the cover beam;
step S8: pouring and feeding;
step S9: transferring the double-limb T-shaped beam;
step S10: the overhead traveling crane runs in place, and the beam is transversely moved to be aligned and dropped;
step S11: and repeating the steps S1-S10 to finish the erection of the rest double-limb T-shaped beam.
2. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S1 specifically includes: the piling device (2) conducts hole leading operation and penetrates through the gravel layer to a position 1m above the elevation of the hole bottom.
3. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S2 specifically includes: the transport platform transports and puts the tubular piles of which the number is calculated in place in advance, the second hoisting overhead crane (7) uses the trays to hoist the tubular piles to place the tubular piles on the beam surface, and the transport platform moves back to the field.
4. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S3 specifically includes: the two first crane (6) lifts the single-section pipe pile and feeds the pile to the pile driving device (2).
5. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S4 specifically includes: a first overhead traveling crane (6) of weighing together places the tubular pile front end on the platform, pile driver equipment (2) bundle stake, promotion, another first overhead traveling crane (6) of weighing together descends while advancing, and the stake is accomplished until promotion feeding, and two first overhead traveling cranes (6) of weighing together retreat, and pile driver equipment (2) carry out vertically, transversely counterpoint and the straightness adjustment that hangs down, and the back is accomplished in the adjustment, carries out the pile driving operation, accomplishes first festival tubular pile and beats and establishes.
6. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S5 specifically includes: and after other tubular piles are lifted in place, welding and splicing the other tubular piles with the previous section of tubular pile to complete the pile driving operation, and cutting the pile after the operation is completed to complete the whole pile operation.
7. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S6 specifically includes: and (5) the pile driving device (2) transversely moves to the right position, and the step S4 is repeated to finish the pile driving operation of the second whole pile on the left side.
8. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S7 specifically includes: the transportation platform transports the cover beam in place, the second hoisting crown block (7) hoists the cover beam, and the transportation platform moves back.
9. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S8 specifically includes: and the second hoisting crane (7) runs in place, rotates and aligns the cover beam, and pours UHPC material.
10. The pile-beam integrated construction method for pipe pile foundation construction and cap beam-beam plate assembly according to claim 1, characterized in that: step S9 specifically includes: the transportation platform transports the double-limb T-shaped beam to the right position, the second hoisting overhead crane (7) hoists the double-limb T-shaped beam, and the transportation platform moves out of the field.
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| CN117344636A (en) * | 2023-09-26 | 2024-01-05 | 广东省高速公路有限公司 | Pile-beam integrated construction method for tubular pile foundation construction and capping beam-beam plate assembly |
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