CN110777684A - Construction method of gravity type bridge pier dismantling system - Google Patents
Construction method of gravity type bridge pier dismantling system Download PDFInfo
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- CN110777684A CN110777684A CN201911053927.0A CN201911053927A CN110777684A CN 110777684 A CN110777684 A CN 110777684A CN 201911053927 A CN201911053927 A CN 201911053927A CN 110777684 A CN110777684 A CN 110777684A
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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
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Abstract
The invention relates to a construction method of a gravity type pier dismantling system, which comprises the following steps: 1) construction preparation; 2) constructing steel sheet piles; 3) arranging a lifting working platform; 4) distributing a sewage treatment system; 5) cutting and constructing the bridge pier; 6) hoisting the pier cut section; 7) and (5) removing pier waste residues. The invention has the beneficial effects that: according to the invention, the pile side hoop is arranged on the outer side wall of the steel pipe pile, and the driving direction of the steel plate pile can be limited through the longitudinal supporting beam, the transverse supporting beam, the outer guide baffle and the inner guide baffle, so that the driving position control accuracy of the steel plate pile can be improved, and the cooperative stress of the steel pipe pile and the steel plate pile can be realized; the invention can improve the circumferential rigidity of the steel sheet pile through the inner supporting ring beam and the ring beam angle brace, and further improve the stress performance of the steel sheet pile; according to the invention, the inner side wall of the steel sheet pile is provided with the slag settling tank, and the inner side wall of the slag settling tank is provided with the first filter plate and the second filter plate, so that the requirement of multilayer slag settling treatment in the cofferdam can be met.
Description
Technical Field
The invention relates to a construction method of a gravity type bridge pier dismantling system, belongs to the field of bridge engineering, and is suitable for local dismantling construction engineering of urban bridges.
Background
With the continuous improvement of city construction and the keeping quantity of motor vehicles, some existing bridges are difficult to meet the increasing traffic needs. When an old bridge is demolished, demolition of a pier is often a difficult point of field control, and particularly, the method is used for improving demolition efficiency, reducing influence of construction on the surrounding environment, improving safety of demolition construction devices and the like.
In the prior art, a construction method for demolishing an existing gravity type pier by blasting is provided, which is characterized by comprising a method of filling dense shallow holes with small diameters (38mm) in a length range, and combining main explosive holes with large diameters and auxiliary explosive holes with small diameters so as to ensure that no large block exists after blasting. Although the construction method can accelerate the bridge dismantling efficiency to a certain extent, effective environmental protection is difficult to realize in the construction process, and the construction efficiency is difficult to promote. Meanwhile, for the underwater pier dismantling project, the problems of steel sheet pile cofferdam driving, pier environment-friendly dismantling, on-site efficient hoisting and the like exist.
In view of this, in order to enrich the pier demolition construction process and reduce the influence of the pier demolition on the surrounding environment, the present invention is in urgent need of a construction method for a gravity pier demolition system, which can reduce the difficulty of bridge gravity pier demolition construction, improve the construction safety, and protect the surrounding environment of a construction site.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a construction method of a gravity type pier dismantling system, which can reduce the environmental influence of dismantling construction, improve the piling quality of a steel sheet pile and reduce the construction difficulty.
The construction method of the gravity type pier dismantling system comprises the following construction steps:
1) construction preparation: rechecking to determine the section size of the pier, the driving position and the depth of the steel sheet pile, and preparing construction devices and materials required by demolition construction;
2) and (3) steel sheet pile driving construction: pile side hoops are arranged on the steel pipe piles around the bridge pier, the longitudinal supporting beam and the transverse supporting beam are respectively embedded into the hoop side connecting grooves, and the longitudinal supporting beam and the transverse supporting beam are limited through the supporting beam fastening bolt and the pressing plate fastening bolt; firstly, sequentially arranging a baffle connecting rod and an outer guide baffle on the side of a longitudinal supporting beam facing a pier, arranging an adjustable supporting rod on an adjacent transverse supporting beam, connecting one end of the adjustable supporting rod with the transverse supporting beam, and connecting a supporting rod pressing plate at the other end of the adjustable supporting rod with an inner guide baffle; a plate top control body is arranged at the top ends of the adjacent outer guide baffle and the inner guide baffle; a longitudinal steel sheet pile is arranged between the outer guide baffle and the inner guide baffle; after the longitudinal steel sheet pile is driven, the transverse steel sheet pile driving construction is carried out by means of the outer guide baffle plates on the transverse supporting beam;
3) arranging a liftable working platform: inner supporting ring beams are respectively arranged on the inner sides of the longitudinal steel sheet piles and the transverse steel sheet piles, and ring beam angle supports are arranged at the joints of the inner supporting ring beams; the outer guide baffle, the steel sheet pile and the inner supporting ring beam are firmly connected through the pile beam connecting bolt; firstly, firmly connecting a platform slide rail with an outer guide baffle, a steel sheet pile and an inner support ring beam through a slide rail connecting bolt, then hanging and pulling a liftable platform beam and a working platform plate at a set elevation through a position control inhaul cable, then arranging a platform bottom support on the lower surface of the working platform plate, and arranging a bottom support inclined rod and an inclined rod pressing plate between the platform bottom support and the platform slide rail; safety guardrails are arranged along the periphery of the working platform plate;
4) and (3) laying a sewage treatment system: arranging a slag basin on the inner side wall of the steel sheet pile, and communicating the slag basin with a slag extraction pump through a slag extraction pipe, so that the slag basin is connected with the steel sheet pile through a tank periphery connecting plate; a first filter plate and a second filter plate are sequentially arranged on the inner side of the slag settling tank from top to bottom, the upper surfaces of the first filter plate and the second filter plate are respectively connected with a position control pull rope, and the lower surfaces of the first filter plate and the second filter plate are respectively connected with a filter plate support body; a first purifying tank, a second purifying tank and a third purifying tank are sequentially arranged below the transverse supporting beam along the length direction of the transverse supporting beam, and the first purifying tank, the second purifying tank and the third purifying tank are connected with the transverse supporting beam through a purifying tank hanging plate and a purifying tank connecting rod; a slag discharging plate is arranged on the side wall of the slag settling tank; an inter-tank connecting pipe is arranged between the slag settling tank and the first purifying tank;
5) cutting and constructing the pier: preparing a supporting wheel slide rail with a plane shape matched with the cross section of the pier, sleeving the supporting wheel slide rail on the outer side of the pier, and firmly connecting the supporting wheel slide rail with the pier through a slide frame position control bolt; fixing a sliding support wheel on a support wheel slide rail by using a support wheel positioning bolt, connecting a rope saw cutting chain with a rope saw motor after passing through the sliding support wheel, and cutting off the bridge pier by using the rope saw cutting chain;
6) hoisting the pier cut section; after the bridge pier is cut off, attaching and connecting the side plates of the lifting appliance with the side walls of the bridge pier, and inserting the bottom support of the lifting appliance into a gap on the lower surface of the cutting section of the bridge pier; firstly, arranging an annular hoop on the outer side of a side plate of the lifting appliance along the annular direction, connecting a suspension cable of the pier with external lifting equipment, and then lifting the cut section of the pier to external moving and transporting equipment;
7) clearing pier waste residues: arranging a waste residue collecting tank between the pier and the steel sheet pile, and connecting a lower baffle of the waste residue collecting tank with the upper surface of the soil around the pier; the slag lifting sling is connected with the inelastic sling and the elastic sling through a connecting lifting ring, the inelastic sling is connected with the connecting lifting ring on the upper surface of the lower baffle plate of the slag collecting groove, and the elastic sling is connected with the connecting lifting ring on the bottom plate of the slag collecting groove; after the pier waste residues enter the waste residue collecting tank, applying an upward lifting force to the slag lifting sling, enabling the lower baffle of the slag collecting tank to tilt upwards under the action of the pulling force to finish the tilting rotation of the waste residue collecting tank, then enabling the inelastic sling and the elastic sling to synchronously lift the waste residue collecting tank, and enabling water in the pier waste residues to flow out through the slag collecting tank water leakage groove; when the pier waste residue is got rid of from the waste residue collecting vat, exert ascending pulling force to the hoist cable of unloading, remove the pulling force of lifting the sediment hoist cable simultaneously, make the pier waste residue get rid of under the dead weight effect.
Preferably, the method comprises the following steps: step 2) uniformly arranging 2-4 piles at intervals along the height direction of the steel pipe pile by using the pile side hoop, and connecting each pile side hoop with a longitudinal supporting beam and a transverse supporting beam; the outer side wall of the pile side hoop is provided with a hoop side connecting groove; the hoop side connecting groove is U-shaped in cross section, comprises a connecting groove bottom plate, a connecting groove vertical plate and a groove top pressing plate, a pressing plate rotating hinge is arranged between the connecting groove vertical plate and the groove top pressing plate, and a pressing plate fastening bolt is arranged on the groove top pressing plate; the pressing plate fastening bolt is connected with the groove top pressing plate through a screw; the connection parts of the two ends of the adjustable stay bar, the transverse stay beam and the stay bar pressing plate are respectively provided with a stay bar rotating hinge, and the middle part of the adjustable stay bar is provided with a stay bar adjusting bolt; the plate top position control body comprises a position control body top plate, a position control body outer side plate and a position control body inner baffle plate, and the position control body top plate is vertically welded and connected with the position control body outer side plate and the position control body inner baffle plate; the position control body outer side plate is respectively arranged on two sides of the position control body inner baffle; the clear distance between the outer side plate of the position control body and the inner baffle of the position control body is the same as the thickness of the outer guide baffle and the inner guide baffle.
Preferably, the method comprises the following steps: step 3), rolling the platform slide rail by adopting a steel plate, arranging slide rail hanging tenons at the joints of the platform slide rail and the liftable platform beam, arranging steering hanging wheels at the top ends of the platform slide rail, and arranging bottom support embedded grooves connected with the platform bottom supports on the outer side walls of the platform slide rail; the sliding rail falcon is integrally rolled with the platform sliding rail, and the cross section of the sliding rail falcon is in an isosceles trapezoid shape; the position control inhaul cable is a steel wire rope or a steel strand, one end of the position control inhaul cable is connected with the liftable platform beam, and the other end of the position control inhaul cable penetrates through the steering change gear and then is connected with the rolling and pulling machine.
Preferably, the method comprises the following steps: step 4), the sediment extraction pump is arranged on an extraction pump placing plate; the extraction pump placing plate is vertically welded or connected with the steel sheet pile through a bolt; the tank periphery connecting plate is made of steel plate materials, has an L-shaped cross section and is welded with the slag settling tank and the steel plate piles; the sediment extraction pipe is a steel pipe or a PVC pipe, and the bottom end of the sediment extraction pipe is inserted into the sediment collection pit; the slag collecting pits are arranged in the soil around the pier, the cross section of each slag collecting pit is in an isosceles trapezoid or rectangle, and the slag collecting pits are annularly distributed along the periphery of the pier; the first filter plate and the second filter plate are both formed by rolling steel plates, and rectangular or oval water leakage slotted holes are formed in the first filter plate and the second filter plate; the slag discharging plate is formed by rolling a steel plate and is connected with the side wall of the slag settling tank through a bolt or a rotating shaft; the first purifying tank, the second purifying tank and the third purifying tank are formed by rolling steel plates, and purifying connecting pipes are respectively arranged between the first purifying tank and the second purifying tank and between the second purifying tank and the third purifying tank; the purification pool hanging plate is formed by rolling a steel plate and is arranged above the transverse supporting beam; the purification connecting pipe adopts a steel pipe or a PVC pipe, a one-way cover plate is arranged at the drainage end of the purification connecting pipe, and a cover plate rotating shaft is arranged between the one-way cover plate and the purification connecting pipe.
Preferably, the method comprises the following steps: step 5) rolling the supporting wheel slide rail by adopting a steel plate, wherein 1-2 rows of slide rail ear plates connected with the slide rail position control bolt are arranged on the side wall of the supporting wheel slide rail; the sliding support wheel adopts a single pulley, a support wheel connecting plate is arranged at the joint of the sliding wheel and the surface of the support wheel sliding rail, and the support wheel connecting plate is firmly connected with the support wheel sliding rail through a support wheel positioning bolt; the supporting wheel connecting plate is formed by rolling a steel plate, the upper surface of the supporting wheel connecting plate is connected with the sliding supporting wheel, and the lower surface of the supporting wheel connecting plate is provided with a sliding connecting tenon connected with the supporting wheel sliding rail; the cross section of the sliding connection tenon is in an isosceles trapezoid shape and is connected with the supporting wheel slide rail through a connection channel.
Preferably, the method comprises the following steps: and 6) rolling the side plates of the lifting appliance by adopting steel plates, arranging the side plates of the lifting appliance at intervals along the periphery of the pier, arranging lifting appliance connecting ribs between the adjacent side plates of the lifting appliance, and connecting the side plates of the lifting appliance with the bottom support of the lifting appliance through screws or through slotted holes.
Preferably, the method comprises the following steps: step 7) the waste residue collecting tank comprises a lower slag collecting tank baffle, a bottom plate of the slag collecting tank and an upper baffle of the slag collecting tank, and the upper surface of the lower slag collecting tank baffle and the two sides of the bottom plate of the slag collecting tank are both provided with connecting lifting rings; an elastic connecting body and a pier side connecting plate are sequentially arranged between the slag collecting groove lower baffle and the pier, and an elastic control body is arranged between the pier side connecting plate and a groove wall baffle on the upper surface of the slag collecting groove lower baffle; slag collecting groove water leakage grooves are formed in the slag collecting groove lower baffle and the slag collecting groove bottom plate; the connecting rings at the two sides of the bottom plate of the slag collecting groove are respectively connected with an elastic sling and a discharge sling; the upper end of the slag collecting groove bottom plate is provided with a slag collecting groove upper baffle; the slag collecting groove transverse support body mainly comprises a stay bar bolt, a first stay bar, a second stay bar and a stay bar pressing plate; the screw fastening directions of the first support rod and the second support rod are opposite, one ends of the first support rod and the second support rod are connected with the support rod through bolts, and the other ends of the first support rod and the second support rod are perpendicularly connected with the support rod pressing plate.
The invention has the beneficial effects that:
(1) according to the invention, the pile side hoop is arranged on the outer side wall of the steel pipe pile, and the driving direction of the steel plate pile can be limited through the longitudinal supporting beam, the transverse supporting beam, the outer guide baffle and the inner guide baffle, so that the accuracy of driving and position control of the steel plate pile can be improved, and the cooperative stress of the steel pipe pile and the steel plate pile can be realized.
(2) The invention can improve the circumferential rigidity of the steel sheet pile through the inner supporting ring beam and the ring beam angle brace, and further improve the stress performance of the steel sheet pile; meanwhile, the platform slide rail is connected with the lifting platform, the lifting platform beam and the working platform plate are hung and pulled at a set height through the position control inhaul cable, and then the bottom support is provided for the working platform plate through the platform bottom support, so that the sliding position control and the quick fixation of the working platform plate are realized.
(3) According to the invention, the inner side wall of the steel sheet pile is provided with the slag settling tank, and the inner side wall of the slag settling tank is provided with the first filter plate and the second filter plate, so that the requirement of multilayer slag settling treatment in the cofferdam can be met; meanwhile, the first purifying tank, the second purifying tank and the third purifying tank are arranged on the transverse supporting beam, so that sewage flows transversely in the tanks, the requirement of sewage purification can be met, and the energy consumption can be reduced.
(4) The support wheel sliding rail capable of controlling the position of the sliding support wheel is arranged on the outer side of the bridge pier, so that the requirement of accurately controlling the position of the sliding support wheel in the cutting process of the bridge pier can be met, and the difficulty of bridge pier cutting construction is reduced.
(5) According to the invention, the side plates of the lifting appliance, the bottom support of the lifting appliance and the connecting ribs of the lifting appliance are arranged on the outer side of the cut-off section of the pier, the connection of the lifting appliance structure and the cut-off section of the pier is convenient, and the safety in the lifting construction process can be improved by means of the annular hoop.
(6) The waste residue collecting tank is arranged on the outer side of the pier, and the gap between the side wall of the pier and the waste residue collecting tank can be eliminated through the waste residue collecting tank cross support body and the elastic position control body; meanwhile, the waste residue collecting tank is hoisted by adopting the inelastic sling and the elastic sling, so that the requirement of a swivel in the air can be met; the arrangement of the discharging sling can realize the quick slag discharge of the waste residue collecting tank.
Drawings
Fig. 1 is a construction flow chart of a gravity type pier dismantling system according to the present invention;
FIG. 2 is a schematic view of a steel sheet pile guiding driving structure;
FIG. 3 is a schematic view of the connection of the longitudinal bracing beam (transverse bracing beam) and the hoop side attachment slot of FIG. 2;
FIG. 4 is a schematic view of the attachment of the plate top retainer to the inner and outer guide dams of FIG. 2;
FIG. 5 is a plan view of the arrangement of the liftable working platform;
FIG. 6 is a longitudinal sectional view of the liftable work platform of FIG. 5;
FIG. 7 is a schematic view of a sewage treatment system layout;
FIG. 8 is a schematic view of a connection structure of the slag basin and the steel sheet pile in FIG. 7;
FIG. 9 is a schematic view of the first, second and third purification tanks of FIG. 7;
FIG. 10 is a schematic plan view of the first and second filter plates of FIG. 8
Fig. 11 is a schematic view of a cutting construction structure of a pier;
FIG. 12 is a schematic view of the connection structure of the supporting wheel slide rail and the sliding supporting wheel of FIG. 11;
fig. 13 is an elevation view of a pier cut-off section hanging structure;
fig. 14 is a cross-sectional view of the pier cut-off segment hanging structure of fig. 13;
FIG. 15 is a schematic view of a pier coping slag removal construction;
fig. 16 is a schematic structural view of the slag trap cross supporter of fig. 15.
Description of reference numerals: 1-bridge pier; 2-steel sheet piles; 3-steel pipe pile; 4-pile side hoop; 5, longitudinal supporting beams; 6-transverse supporting beam; 7-hoop side connecting grooves; 8, pressing plate fastening bolts; 9-outer guide baffle; 10-an adjustable brace bar; 11-a strut press plate; 12-an inner guide baffle; 13-plate top control body; 14-inner bracing ring beam; 15-ring beam angle brace; 16-pile beam connecting bolt; 17-a slide rail connecting bolt; 18-a platform slide rail; 19-position control inhaul cable; 20-a liftable platform beam; 21-a working platform plate; 22-platform bottom support; 23-bottom stay diagonal; 24-a diagonal bar platen; 25-safety barrier; 26-a sediment tank; 27-sediment extraction pump; 28-sediment extraction pipe; 29-a first filter plate; 30-a second filter plate; 31-supporting beam fastening bolt; 32-a filter plate support; 33-a first purification tank; 34-a second purification tank; 35-a third purification tank; 36-hanging plates of the purification tank; 37-purification tank connecting rod; 38-a slag discharge plate; 39-inter-pool connecting pipe; 40-supporting a wheel slide rail; 41-carriage position control bolt; 42-a supporting wheel positioning bolt; 43-a slipping support wheel; 44-rope saw cutting chain; 45-a wire saw motor; 46-spreader side plates; 47-spreader bottom bracing; 48-ring hoop; 49-pier slings; 50-a waste residue collecting tank; 51-a slag collection groove lower baffle; 52-mound periphery soil; 53-a slag sling; 54-a non-elastic sling; 55-an elastic sling; 56-connecting a lifting ring; 57-slag collection groove cross support body; 58-slag collecting groove bottom plate; 59-slag trap water leakage groove; 60-a discharge sling; 61-connecting trough bottom plate; 62-connecting a groove vertical plate; 63-groove top press plate; 64-pressing plate rotating hinge; 65-stay bar rotation hinge; 66-a strut adjusting bolt; 67-a position control body top plate; 68-position control body outer side plate; 69-controlling the internal baffle of the position body; 70-sliding rail falcon hanging; 71-a steering change gear; 72-bottom support embedded groove; 73-an extraction pump placing plate; 74-water leakage slot holes; 75-a purge connection tube; 76-one-way cover plate; 77-cover plate rotating shaft; 78-slide rail ear plate; 79-supporting wheel connecting plate; 80-sliding connection falcon; 81-connecting ribs of a lifting appliance; 82-an upper baffle of the slag collecting groove; 83-an elastic linker; 84-pier side connection plates; 85-groove wall baffle; 86-elastic control body; 87-a baffle connection rod; 88-a rolling and pulling machine; 89-a first brace bar; 90-a second brace bar; 91-a tank periphery connecting plate; 92-a slag collection pit; 93-position control pull ropes; 94-pier waste residues; 95-stay bolt.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Referring to fig. 1, the construction method of the gravity type pier dismantling system includes the following construction steps:
1) construction preparation: rechecking to determine the section size of the pier 1, the driving position and the depth of the steel sheet pile 2, and preparing construction devices and materials required by demolition construction;
2) and (3) steel sheet pile driving construction: arranging pile side hoops 4 on the steel pipe piles 3 around the pier 1, respectively embedding a longitudinal support beam 5 and a transverse support beam 6 into a hoop side connecting groove 7, and limiting the longitudinal support beam 5 and the transverse support beam 6 through a support beam fastening bolt 31 and a pressing plate fastening bolt 8; firstly, sequentially arranging a baffle connecting rod 87 and an outer guide baffle 9 on the side of a longitudinal supporting beam 5 facing a pier 1, arranging an adjustable supporting rod 10 on an adjacent transverse supporting beam 6, and connecting a supporting rod pressing plate 11 at the other end of the adjustable supporting rod 10 with an inner guide baffle 12; a plate top control body 13 is arranged at the top ends of the adjacent outer guide baffle 9 and the adjacent inner guide baffle 12; a longitudinal steel sheet pile 2 is arranged between the outer guide baffle 9 and the inner guide baffle 12; after the longitudinal steel sheet pile 2 is driven, the transverse steel sheet pile 2 is driven by the outer guide baffle 9 on the transverse supporting beam 6;
3) arranging a liftable working platform: inner supporting ring beams 14 are respectively arranged on the inner sides of the longitudinal steel sheet piles 2 and the transverse steel sheet piles 2, and ring beam angle supports 15 are arranged at the joints of the inner supporting ring beams 14; the outer guide baffle 9, the steel sheet pile 2 and the inner support ring beam 14 are firmly connected through the pile beam connecting bolt 16; firstly, firmly connecting a platform slide rail 18 with an outer guide baffle 9, a steel sheet pile 2 and an inner support ring beam 14 through a slide rail connecting bolt 17, then hanging and pulling a liftable platform beam 20 and a working platform plate 21 at a set height through a position control inhaul cable 19, then arranging a platform bottom support 22 on the lower surface of the working platform plate 21, and arranging a bottom support inclined rod 23 and an inclined rod pressing plate 24 between the platform bottom support 22 and the platform slide rail 18; safety barriers 25 are arranged along the periphery of the working platform plate 21;
4) and (3) laying a sewage treatment system: a slag basin 26 is arranged on the inner side wall of the steel sheet pile 2, the slag basin 26 is communicated with a slag extraction pump 27 through a slag extraction pipe 28, and the slag basin 26 is connected with the steel sheet pile 2 through a basin periphery connecting plate 91; the first filter plate 29 and the second filter plate 30 are sequentially arranged on the inner side of the slag settling tank 26 from top to bottom, the upper surfaces of the first filter plate 29 and the second filter plate 30 are respectively connected with a position control pull rope 93, and the lower surfaces of the first filter plate 29 and the second filter plate 30 are respectively connected with a filter plate support body 32; a first purifying tank 33, a second purifying tank 34 and a third purifying tank 35 are sequentially arranged below the transverse supporting beam 6 along the length direction of the transverse supporting beam, and the first purifying tank 33, the second purifying tank 34 and the third purifying tank 35 are connected with the transverse supporting beam 6 through a purifying tank hanging plate 36 and a purifying tank connecting rod 37; a slag discharging plate 38 is arranged on the side wall of the slag settling tank 26; an inter-tank connecting pipe 39 is arranged between the slag settling tank 26 and the first purifying tank 33;
5) cutting and constructing the pier: preparing a supporting wheel slide rail 40 with a plane shape similar to the cross section of the pier 1, sleeving the supporting wheel slide rail 40 on the outer side of the pier 1, and firmly connecting the supporting wheel slide rail 40 with the pier 1 through a slide frame position control bolt 41; firstly, fixing a sliding support wheel 43 on a support wheel sliding rail 40 by using a support wheel positioning bolt 42, then connecting a rope saw cutting chain 44 with a rope saw motor 45 after passing through the sliding support wheel 43, and cutting off the pier 1 by using the rope saw cutting chain 44;
6) hoisting the pier cut section; after the pier 1 is cut off, attaching and connecting the side plate 46 of the lifting appliance with the side wall of the pier 1, and inserting the bottom support 47 of the lifting appliance into a gap on the lower surface of the cutting section of the pier 1; firstly, arranging a hoop 48 on the outer side of a side plate 46 of the lifting appliance along the hoop direction, then connecting a suspension cable 49 of the pier with external lifting equipment, and then lifting the cut section of the pier 1 to external moving and transporting equipment;
7) clearing pier waste residues: a waste residue collecting tank 50 is arranged between the pier 1 and the steel sheet pile 2, and a lower baffle plate 51 of the waste residue collecting tank is connected with the upper surface of the soil 52 around the pier; the slag lifting sling 53 is connected with the inelastic sling 54 and the elastic sling 55 through a connecting lifting ring 56, the inelastic sling 54 is connected with the connecting lifting ring 56 on the upper surface of the slag collecting groove lower baffle 51, and the elastic sling 55 is connected with the connecting lifting ring 56 on the slag collecting groove bottom plate 58; after the pier waste residues 94 enter the waste residue collecting tank 50, applying an upward lifting force to the slag lifting slings 53, enabling the lower baffle plate 51 of the slag collecting tank to tilt upwards under the action of the pulling force to finish the tilting rotation of the waste residue collecting tank 50, then enabling the inelastic slings 54 and the elastic slings 55 to synchronously lift the waste residue collecting tank 50, and enabling water in the pier 1 waste residues to flow out through the slag collecting tank water leakage tank 59; when the pier 1 waste residue is discharged from the waste residue collecting tank 50, an upward pulling force is applied to the discharging suspension cable 60, and meanwhile, the pulling force of the slag lifting suspension cable 53 is relieved, so that the pier 1 waste residue is discharged under the action of self weight.
Referring to fig. 2 to 16, in the gravity type bridge pier dismantling system, a pile side hoop 4 is arranged on the side wall of a steel pipe pile 3, and the driving direction of a steel plate pile 2 is limited by an outer guide baffle 9 and an inner guide baffle 12; a lifting platform connected with the platform slide rail 18 is arranged, and a lifting platform beam 20 and a working platform plate 21 can be hung and pulled at a set height through a position control inhaul cable 19; a first filter plate 29 and a second filter plate 30 are arranged on the inner side of the slag settling tank 26 on the inner side wall of the steel sheet pile 2; a first purifying tank 33, a second purifying tank 34 and a third purifying tank 35 are arranged below the transverse supporting beam 6; a support wheel slide rail 40 capable of controlling the position of a sliding support wheel 43 is arranged on the outer side of the pier 1; when the cut section of the pier 1 is hoisted, a sling side plate 46, a sling bottom support 47 and a sling connecting rib 81 are arranged on the outer side of the cut section of the pier 1; a slag collection tank 50 is provided outside the pier 1, and the slag collection tank 50 is hoisted by using a non-elastic sling 54 and an elastic sling 55 in synchronization.
The pier 1 is a bridge pier with the concrete strength grade of C50, the width of 1m and the length of 2 m.
The steel sheet pile 2 adopts saddle-IV type steel sheet pile, and the length is 6 m.
The steel pipe pile 3 is a steel pipe with an outer diameter of 600mm and a wall thickness of 10 mm.
The pile side hoop 4 consists of two hoop arc plates, the thickness of the hoop plate is 10mm, and the inner diameter of the hoop plate is 600 mm.
The longitudinal supporting beams 5 and the transverse supporting beams 6 both adopt H-shaped steel with the specification of 300 multiplied by 10 multiplied by 15.
The cross section of the hoop side connecting groove 7 is U-shaped, the hoop side connecting groove is composed of a connecting groove bottom plate 61, a connecting groove vertical plate 62 and a groove top pressing plate 63, the height and the width are both 400mm, wherein the connecting groove bottom plate 61 is made of a steel plate with the thickness of 20mm, and the connecting groove vertical plate 62 and the groove top pressing plate 63 are both made of a steel plate with the thickness of 10 mm.
The pressure plate fastening bolt 8 is formed by combining a screw rod with the diameter of 30mm and a bolt.
The outer guide baffle 9 and the inner guide baffle 12 are both made of steel plates with the thickness of 10mm, the height of the steel plates is 60cm, and the depth of the bottom ends of the steel plates inserted into the soil 52 around the piers is 30 cm.
The adjustable stay bar 10 is formed by rolling a steel pipe with the diameter of 60mm, stay bar rotating hinges 65 are arranged at the joint of the stay bar pressing plate 11 and the transverse supporting beam 6, and a stay bar adjusting bolt 66 is arranged in the middle of the adjustable stay bar 10; the stay bar adjusting bolt 66 is matched with the adjustable stay bar 10, and the fastening directions of the adjustable stay bar 10 at the two sides of the stay bar adjusting bolt 66 are opposite; the stay bar pressing plate 11 is formed by rolling a steel plate with the thickness of 10 mm; the stay bar rotating hinge 65 adopts a spherical hinge with the diameter of 60 mm.
The control body top plate 66 is formed by rolling a steel plate with the thickness of 10 mm.
The plate top control body 13 consists of a control body top plate 67, a control body outer side plate 68 and a control body inner baffle plate 69; the top plate 67 of the position control body and the outer side plate 68 of the position control body are both made of steel plates with the thickness of 10mm, the width of the inner baffle plate 69 of the position control body is the same as that of the steel plate pile 2, the top surfaces of the top plate 67 of the position control body and the outer side plate 68 of the position control body are vertically welded and connected with the top surfaces of the inner baffle plate 69 of the position control body, and the distance between the outer side plate 68 of the position control body and the inner baffle plate 69 of the position control.
The inner supporting ring beam 14 adopts H-shaped steel with the specification of 300 multiplied by 10 multiplied by 15.
The ring beam angle brace 15 adopts H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8.
The pile beam connecting bolt 16 is composed of a high-strength screw rod with the diameter of 30mm and a bolt.
The slide rail connecting bolt 17 is composed of a high-strength screw rod with the diameter of 60mm and a bolt, one end of the slide rail connecting bolt is connected with the platform slide rail 18 in a welding mode, and the other end of the slide rail connecting bolt is provided with a hexagon bolt matched with the pile beam connecting bolt 16.
The platform slide rail 18 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the platform slide rail is in an isosceles trapezoid shape, the height of the platform slide rail is 10cm, the top width of the platform slide rail is 20cm, and a slide rail hanging tenon 70 is arranged on the joint surface of the platform slide rail 18 and the liftable platform beam 20; the slide rail hanging falcon 70 and the platform slide rail 18 are integrally rolled, the cross section of the slide rail hanging falcon is in an isosceles trapezoid shape, and the top width of the slide rail hanging falcon is 2 cm.
The position control inhaul cable 19 is a steel wire rope with the diameter of 30 mm.
Liftable platform roof beam 20 adopts the steel sheet rolling that thickness is 10mm to form, meets with platform slide rail 18 and sets up the channel of being connected with platform slide rail 18 and slide rail falcon 70.
The working platform plate 21 is formed by rolling a steel plate with the thickness of 2 mm.
The platform bottom support 22 is cut from a steel plate with a diameter of 20mm and inserted into the bottom support embedding groove 72 on the outer side surface of the platform slide rail 18. The bottom support embedded groove 72 has a groove depth of 40mm and a width of 20 mm.
The bottom support inclined rod 23 is formed by combining a screw rod with the diameter of 30mm and a bolt, rotary spherical hinges are arranged at two ends of the bottom support inclined rod, and an inclined rod pressing plate 24 is arranged at the joint of the bottom support inclined rod and the platform slide rail 18. The diagonal pressing plate 24 is formed by rolling a steel plate with the thickness of 10mm, and the plane size is 20cm multiplied by 20 cm.
The safety barrier 25 is formed by welding steel pipe materials with the diameter of 60mm and is vertically welded and connected with the working platform plate 21.
The slag settling tank 26 is formed by rolling a steel plate with the thickness of 2mm, the groove depth is 100cm, the width is 50cm, and the length is 200 cm.
The sediment extraction pump 27 adopts a 100ZGB slurry pump.
The sediment extraction pipe 28 is a steel pipe with a diameter of 152 mm.
The first filter plate 29 and the second filter plate 30 are both formed by rolling steel plates with the thickness of 2mm, wherein the widths of the water leakage groove holes 74 on the first filter plate 29 and the second filter plate 30 are respectively 20mm and 10 mm.
The support beam fastening bolt 31 is composed of a high-strength screw rod with the diameter of 30mm and a bolt.
The filter plate support body 32 is formed by cutting a steel plate with the thickness of 10mm, has the width of 5cm and the length of 20cm, and is vertically welded and connected with the side wall of the slag settling tank 26.
The first purifying tank 33, the second purifying tank 34 and the third purifying tank 35 are all formed by rolling steel plates with the thickness of 1mm, and the volumes of the first purifying tank, the second purifying tank and the third purifying tank are all 1m
3。
The purification tank hanging plate 36 is formed by rolling a steel plate with the thickness of 10mm, the width of the purification tank hanging plate is 10cm, and the length of the purification tank hanging plate is 20 cm.
The purification tank connecting rod 37 is formed by rolling a steel pipe with the diameter of 10mm, the bottom end of the purification tank connecting rod is vertically welded with the first purification tank 33, the second purification tank 34 and the third purification tank 35, and the top end of the purification tank connecting rod is connected with the purification tank hanging plate 36.
The slag discharging plate 38 is formed by rolling a steel plate with the thickness of 2mm, is arranged at a slag discharging hole part on the side wall of the slag settling tank 26, and is connected with the side wall of the slag settling tank 26 through bolts.
The inter-cell connection pipe 39 is made of a steel pipe having a diameter of 100 mm.
The supporting wheel slide rail 40 is formed by rolling a steel plate with the thickness of 2mm, and 1-2 rows of slide rail lug plates 78 connected with the sliding frame position control bolt 41 are arranged on the side wall; the slide rail ear plate 78 is formed by rolling a steel plate with the thickness of 10mm and is welded with the side wall of the supporting wheel slide rail 40; the carriage position control bolt 41 is a bolt with the diameter of 30 mm. The supporting wheel sliding rail 40 is sleeved on the outer side of the pier 1, and the supporting wheel sliding rail 40 is firmly connected with the pier 1 through the sliding frame position control bolt 41.
The supporting wheel positioning bolt 42 is composed of a high-strength screw rod with the diameter of 20mm and a bolt.
The sliding support wheel 43 adopts a single pulley, and a support wheel connecting plate 79 is arranged at the joint of the sliding wheel and the surface of the support wheel slide rail 40; the supporting wheel connecting plate 79 is formed by rolling a steel plate with the thickness of 10mm, and the lower surface of the supporting wheel connecting plate is provided with a sliding connecting tenon 80 connected with the supporting wheel sliding rail 40; the cross section of the sliding connection falcon 80 is isosceles trapezoid formed by rolling a steel plate with the thickness of 2mm, the cross section of the sliding connection falcon is isosceles trapezoid, the top width of the sliding connection falcon is 20cm, and the sliding connection falcon is connected with the supporting wheel slide rail 40 through a connection channel.
The wire saw cutting chain 44 is a diamond chain.
The rope saw motor 45 has a working voltage of 380v and a model number of Y2 JD.
The hanger side plates 46 are formed by rolling steel plates with the thickness of 10mm, and hanger connecting ribs 81 are arranged between the adjacent hanger side plates 46; the hanger connecting rib 81 adopts a steel wire rope with the diameter of 20 mm.
The hanger bottom support 47 is formed by cutting a steel plate with the thickness of 10 mm.
The hoop 48 is a hoop rolled from a steel plate having a thickness of 1mm and has a width of 10 cm.
The pier sling 49 is a wire rope having a diameter of 30 mm.
The waste residue collecting tank 50 comprises a lower slag collecting tank baffle 51, a bottom slag collecting tank plate 58 and an upper slag collecting tank baffle 82 which are all formed by rolling steel plates with the thickness of 10 mm.
The mound-surrounding soil 52 is muddy soil in a soft plastic state.
The slag slings 53 are steel tubes of 20mm diameter.
The non-elastic sling 54 is a wire rope with a diameter of 30 mm.
The elastic sling 55 is a spring with a diameter of 20 mm.
The connection hanging ring 56 is formed by welding steel bars with the diameter of 10mm, and the diameter of the connection hanging ring is 100 mm.
The slag collecting groove transverse supporting body 57 consists of a stay bar bolt 95, a first stay bar 89, a second stay bar 90 and a stay bar pressing plate 11, wherein the first stay bar 89 and the second stay bar 90 are respectively formed by rolling steel pipes with the diameter of 60mm, and the fastening directions are opposite; the stay bolt 95 is matched with the first stay 89 and the second stay 90.
The width of the slag collection groove water leakage groove 59 is 2mm, and the length is 1 cm.
The discharge sling 60 is a wire rope with a diameter of 30 mm.
The pressure plate rotating hinge 64 adopts a rotating shaft with the diameter of 10 mm.
The steering change gear 71 adopts a 6-inch rotating wheel.
The extraction pump placing plate 73 is formed by rolling a steel plate with the thickness of 10mm and is vertically welded and connected with the steel sheet pile 2.
The purification connecting pipe 75 is formed by rolling a steel pipe with the diameter of 100mm, and a one-way cover plate 76 is arranged at the end part of the purification connecting pipe extending into the next-stage purification tank; the one-way cover plate 76 is formed by rolling a steel plate with the thickness of 2mm and is connected with the purification connecting pipe 75 through a cover plate rotating shaft 77; the cover plate rotating shaft 77 is a loose-leaf rotating shaft with the diameter of 20 mm.
The elastic connecting body 83 is a rubber plate with the thickness of 10mm and is stuck and connected with the lower baffle 51 of the slag collecting groove.
The pier-side connecting plate 84 is a rubber plate with the thickness of 10mm, the bottom end of the pier-side connecting plate is connected with the elastic connecting body 83 in a sticking mode, and the pier-side connecting plate is connected with the groove wall baffle 85 through the elastic control body 86; the tank wall baffle 85 is formed by rolling a steel plate with the thickness of 10mm and is vertically welded with the slag collecting tank lower baffle 51; the elastic control body 86 is a spring with the diameter of 20 mm.
The baffle connecting rod 87 is formed by cutting a steel pipe with the diameter of 60mm, and two ends of the baffle connecting rod are respectively and vertically welded with the longitudinal supporting beam 5 and the outer guide baffle 9.
The winding and pulling mechanism 88 adopts a winding engine with 380v voltage.
The tank periphery connecting plate 91 is made of a steel plate with the thickness of 2mm, the cross section of the tank periphery connecting plate is L-shaped, and the tank periphery connecting plate is connected with the steel plate pile 2 and the slag settling tank 26 in a welding mode.
The depth of the slag collection pit 92 is 30cm, the cross section of the slag collection pit is in an isosceles trapezoid shape, and the bottom width of the slag collection pit is 20 cm.
The position control pull rope 93 is a steel wire rope with the diameter of 30 mm.
The pier waste 94 is mainly made of waste residue generated when a pier is chiseled, and contains a small amount of mucky soil.
Claims (7)
1. The construction method of the gravity type pier dismantling system is characterized by comprising the following steps: the method comprises the following construction steps:
1) construction preparation: rechecking to determine the section size of the pier (1), the driving position and the depth of the steel sheet pile (2), and preparing construction devices and materials required by demolition construction;
2) and (3) steel sheet pile driving construction: pile side hoops (4) are arranged on the steel pipe piles (3) around the bridge pier (1), the longitudinal supporting beams (5) and the transverse supporting beams (6) are respectively embedded into the hoop side connecting grooves (7), and the longitudinal supporting beams (5) and the transverse supporting beams (6) are limited through supporting beam fastening bolts (31) and pressing plate fastening bolts (8); firstly, baffle connecting rods (87) and outer guide baffles (9) are sequentially arranged on the side, facing a pier (1), of a longitudinal supporting beam (5), adjustable supporting rods (10) are arranged on adjacent transverse supporting beams (6), one end of each adjustable supporting rod (10) is connected with the transverse supporting beam (6), and a supporting rod pressing plate (11) at the other end of each adjustable supporting rod (10) is connected with an inner guide baffle (12); a plate top control body (13) is arranged at the top end of the adjacent outer guide baffle (9) and inner guide baffle (12); a longitudinal steel sheet pile (2) is arranged between the outer guide baffle (9) and the inner guide baffle (12); after the longitudinal steel sheet pile (2) is driven, the transverse steel sheet pile (2) is driven by means of an outer guide baffle (9) on the transverse supporting beam (6);
3) arranging a liftable working platform: inner supporting ring beams (14) are respectively arranged on the inner sides of the longitudinal steel sheet piles (2) and the transverse steel sheet piles (2), and ring beam angle braces (15) are arranged at the joints of the inner supporting ring beams (14); the outer guide baffle (9), the steel sheet pile (2) and the inner supporting ring beam (14) are firmly connected through a pile beam connecting bolt (16); firstly, a platform slide rail (18) is firmly connected with an outer guide baffle plate (9), a steel plate pile (2) and an inner supporting ring beam (14) through a slide rail connecting bolt (17), then a liftable platform beam (20) and a working platform plate (21) are hung and pulled at a set elevation through a position control inhaul cable (19), then a platform bottom support (22) is arranged on the lower surface of the working platform plate (21), and a bottom support inclined rod (23) and an inclined rod pressing plate (24) are arranged between the platform bottom support (22) and the platform slide rail (18); a safety guardrail (25) is arranged along the periphery of the working platform plate (21);
4) and (3) laying a sewage treatment system: a slag basin (26) is arranged on the inner side wall of the steel sheet pile (2), the slag basin (26) is communicated with a slag extraction pump (27) through a slag extraction pipe (28), and the slag basin (26) is connected with the steel sheet pile (2) through a tank periphery connecting plate (91); a first filter plate (29) and a second filter plate (30) are sequentially arranged on the inner side of the slag settling tank (26) from top to bottom, the upper surfaces of the first filter plate (29) and the second filter plate (30) are respectively connected with a position control pull rope (93), and the lower surfaces of the first filter plate (29) and the second filter plate (30) are respectively connected with a filter plate support body (32); a first purifying tank (33), a second purifying tank (34) and a third purifying tank (35) are sequentially arranged below the transverse supporting beam (6) along the length direction of the transverse supporting beam, and the first purifying tank (33), the second purifying tank (34) and the third purifying tank (35) are connected with the transverse supporting beam (6) through a purifying tank hanging plate (36) and a purifying tank connecting rod (37); a slag discharge plate (38) is arranged on the side wall of the slag settling tank (26); an inter-tank connecting pipe (39) is arranged between the slag settling tank (26) and the first purifying tank (33);
5) cutting and constructing the pier: preparing a supporting wheel slide rail (40) with a plane shape matched with the cross section of the pier (1), sleeving the supporting wheel slide rail (40) on the outer side of the pier (1), and firmly connecting the supporting wheel slide rail (40) with the pier (1) through a sliding frame position control bolt (41); firstly, fixing a sliding support wheel (43) on a support wheel sliding rail (40) by using a support wheel positioning bolt (42), then connecting a rope saw cutting chain (44) with a rope saw motor (45) after passing through the sliding support wheel (43), and cutting off the pier (1) by using the rope saw cutting chain (44);
6) hoisting the pier cut section; after the pier (1) is cut off, attaching and connecting a side plate (46) of a lifting appliance with the side wall of the pier (1), and inserting a bottom support (47) of the lifting appliance into a gap on the lower surface of the cutting section of the pier (1); firstly, arranging an annular hoop (48) on the outer side of a side plate (46) of the lifting appliance along the annular direction, then connecting a suspension cable (49) of the pier with external lifting equipment, and then lifting the cut section of the pier (1) to external moving and transporting equipment;
7) clearing pier waste residues: a waste residue collecting tank (50) is arranged between the pier (1) and the steel sheet pile (2), and a lower baffle plate (51) of the waste residue collecting tank is connected with the upper surface of the soil (52) around the pier; the slag lifting sling (53) is connected with the inelastic sling (54) and the elastic sling (55) through a connecting lifting ring (56), the inelastic sling (54) is connected with the connecting lifting ring (56) on the upper surface of the slag collecting groove lower baffle (51), and the elastic sling (55) is connected with the connecting lifting ring (56) on the slag collecting groove bottom plate (58); after pier waste residues (94) enter a waste residue collecting tank (50), applying upward lifting force to a slag lifting sling (53), enabling a lower baffle plate (51) of the slag collecting tank to tilt upwards under the action of the pulling force to finish the tilting rotation of the waste residue collecting tank (50), then enabling a non-elastic sling (54) and an elastic sling (55) to synchronously lift the waste residue collecting tank (50), and enabling water in the pier waste residues (1) to flow out through a waste residue collecting tank water leakage groove (59); when the waste slag of the pier (1) is discharged from the waste slag collecting tank (50), an upward pulling force is applied to the discharging suspension cable (60), and meanwhile, the pulling force of the slag lifting suspension cable (53) is relieved, so that the waste slag of the pier (1) is discharged under the action of self weight.
2. The construction method of the gravity type pier dismantling system according to claim 1, wherein: step 2), uniformly arranging 2-4 pile side hoops (4) at intervals along the height direction of the steel pipe pile (3), and enabling each pile side hoop (4) to be connected with a longitudinal supporting beam (5) and a transverse supporting beam (6); the outer side wall of the pile side hoop (4) is provided with a hoop side connecting groove (7); the cross section of the hoop side connecting groove (7) is U-shaped, the hoop side connecting groove (7) comprises a connecting groove bottom plate (61), a connecting groove vertical plate (62) and a groove top pressing plate (63), a pressing plate rotating hinge (64) is arranged between the connecting groove vertical plate (62) and the groove top pressing plate (63), and a pressing plate fastening bolt (8) is arranged on the groove top pressing plate (63); the pressing plate fastening bolt (8) is connected with the groove top pressing plate (63) through a screw; the connection parts of the two ends of the adjustable stay bar (10) and the transverse supporting beam (6) and the stay bar pressing plate (11) are respectively provided with a stay bar rotating hinge (65), and the middle part of the adjustable stay bar (10) is provided with a stay bar adjusting bolt (66); the plate top control body (13) comprises a control body top plate (67), a control body outer side plate (68) and a control body inner baffle plate (69), and the control body top plate (67) is vertically welded with the control body outer side plate (68) and the control body inner baffle plate (69); the position control body outer side plate (68) is respectively arranged on two sides of the position control body inner baffle plate (69); the clear distance between the outer side plate (68) of the position control body and the inner baffle plate (69) of the position control body is the same as the thickness of the outer guide baffle plate (9) and the thickness of the inner guide baffle plate (12).
3. The construction method of the gravity type pier dismantling system according to claim 1, wherein: step 3), rolling the platform slide rail (18) by using a steel plate, arranging a slide rail falcon (70) at the joint of the platform slide rail (18) and the liftable platform beam (20), arranging a steering hanging wheel (71) at the top end of the platform slide rail (18), and arranging a bottom support embedded groove (72) connected with the platform bottom support (22) on the outer side wall of the platform slide rail (18); the sliding rail hanging falcon (70) and the platform sliding rail (18) are integrally rolled, and the cross section of the sliding rail hanging falcon (70) is in an isosceles trapezoid shape; the position control inhaul cable (19) is a steel wire rope or a steel strand, one end of the position control inhaul cable is connected with the liftable platform beam (20), and the other end of the position control inhaul cable penetrates through the steering change gear (71) and then is connected with the rolling and pulling machine (88).
4. The construction method of the gravity type pier dismantling system according to claim 1, wherein: the sediment extraction pump (27) in the step 4) is arranged on the extraction pump placing plate (73); the extraction pump placing plate (73) is vertically welded or connected with the steel sheet pile (2) through a bolt; the tank periphery connecting plate (91) is made of steel plate materials, has an L-shaped cross section and is welded with the slag settling tank (26) and the steel plate pile (2); the sediment extraction pipe (28) is a steel pipe or a PVC pipe, and the bottom end of the sediment extraction pipe is inserted into the sediment collection pit (92); the slag collecting pits (92) are arranged in the soil (52) around the pier, the cross section of each slag collecting pit is isosceles trapezoid or rectangular, and the slag collecting pits (92) are annularly distributed along the periphery of the pier (1); the first filter plate (29) and the second filter plate (30) are both formed by rolling steel plates, and rectangular or elliptical water leakage groove holes (74) are formed in the first filter plate (29) and the second filter plate (30); the slag discharge plate (38) is formed by rolling a steel plate and is connected with the side wall of the slag settling tank (26) through a bolt or a rotating shaft; the first purifying tank (33), the second purifying tank (34) and the third purifying tank (35) are formed by rolling steel plates, and purifying connecting pipes (75) are respectively arranged between the first purifying tank (33) and the second purifying tank (34) and between the second purifying tank (34) and the third purifying tank (35); the purification pool hanging plate (36) is formed by rolling a steel plate and is arranged above the transverse supporting beam (6); the purification connecting pipe (75) is a steel pipe or a PVC pipe, a one-way cover plate (76) is arranged at the drainage end of the purification connecting pipe, and a cover plate rotating shaft (77) is arranged between the one-way cover plate (76) and the purification connecting pipe (75).
5. The construction method of the gravity type pier dismantling system according to claim 1, wherein: step 5), rolling the supporting wheel slide rail (40) by adopting a steel plate, and arranging 1-2 rows of slide rail lug plates (78) connected with the sliding frame position control bolt (41) on the side wall of the supporting wheel slide rail; the sliding support wheel (43) adopts a single pulley, a support wheel connecting plate (79) is arranged at the joint of the sliding wheel support rail (40) and the sliding support wheel, and the support wheel connecting plate (79) is firmly connected with the support wheel support rail (40) through a support wheel positioning bolt (42); the supporting wheel connecting plate (79) is formed by rolling a steel plate, the upper surface of the supporting wheel connecting plate is connected with the sliding supporting wheel (43), and the lower surface of the supporting wheel connecting plate is provided with a sliding connecting tenon (80) connected with the supporting wheel sliding rail (40); the cross section of the sliding connection falcon (80) is in an isosceles trapezoid shape and is connected with the supporting wheel slide rail (40) through a connection channel.
6. The construction method of the gravity type pier dismantling system according to claim 1, wherein: and step 6), the lifting appliance side plates (46) are formed by rolling steel plates and are arranged at intervals along the periphery of the pier (1), lifting appliance connecting ribs (81) are arranged between the adjacent lifting appliance side plates (46), and the lifting appliance side plates (46) are connected with the lifting appliance bottom support (47) through screws or through slotted holes.
7. The construction method of the gravity type pier dismantling system according to claim 1, wherein: step 7), the waste residue collecting tank (50) comprises a lower slag collecting tank baffle (51), a bottom plate (58) of the slag collecting tank and an upper slag collecting tank baffle (82), and connecting lifting rings (56) are arranged on the upper surface of the lower slag collecting tank baffle (51) and on two sides of the bottom plate (58) of the slag collecting tank; an elastic connecting body (83) and a pier side connecting plate (84) are sequentially arranged between the slag collecting groove lower baffle (51) and the pier (1), and an elastic control body (86) is arranged between the pier side connecting plate (84) and a groove wall baffle (85) on the upper surface of the slag collecting groove lower baffle (51); a slag collecting groove water leakage groove (59) is arranged on the slag collecting groove lower baffle (51) and the slag collecting groove bottom plate (58); the connecting rings (20) at the two sides of the slag collecting groove bottom plate (22) are respectively connected with an elastic sling (19) and a discharging sling (24); the upper end of the slag collecting groove bottom plate (22) is provided with a slag collecting groove upper baffle (29); the slag collecting groove transverse support body (57) mainly comprises a stay bar bolt (95), a first stay bar (89), a second stay bar (90) and a stay bar pressing plate (11); the screw fastening directions of the first support rod (89) and the second support rod (90) are opposite, one end of the first support rod (89) and one end of the second support rod (90) are both connected with the support rod bolt (95), and the other ends of the first support rod (89) and the second support rod (90) are both vertically connected with the support rod pressing plate (11).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996931A (en) * | 2020-07-25 | 2020-11-27 | 北京城乡建设集团有限责任公司 | Construction method for green demolition and transformation of existing bridge and sewage collection device thereof |
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| JPH09302919A (en) * | 1996-05-13 | 1997-11-25 | Hazama Gumi Ltd | Transfer platform for columnar body |
| CN103981816A (en) * | 2014-04-15 | 2014-08-13 | 河南省公路工程局集团有限公司 | Construction method for underpinning of overpass framework pier columns |
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Inventor after: Liu Chunmei Inventor after: Hong Jun Inventor after: Liu Qinlong Inventor after: Su Ying Inventor after: Ye Minglin Inventor after: Zhang Pengfei Inventor after: Cao Yongbao Inventor after: Gong Zhangrui Inventor after: Zhang Bangwei Inventor after: Li Changchun Inventor after: Passing orders Inventor before: Su Ying Inventor before: Hong Jun Inventor before: Liu Qinlong Inventor before: Ye Minglin Inventor before: Zhang Pengfei Inventor before: Liu Chunmei Inventor before: Cao Yongbao Inventor before: Gong Zhangrui Inventor before: Zhang Bangwei Inventor before: Li Changchun Inventor before: Passing orders |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |