CN111535300B - Water conservancy construction environment-friendly bridge pile foundation construction method - Google Patents
Water conservancy construction environment-friendly bridge pile foundation construction method Download PDFInfo
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- CN111535300B CN111535300B CN202010274169.1A CN202010274169A CN111535300B CN 111535300 B CN111535300 B CN 111535300B CN 202010274169 A CN202010274169 A CN 202010274169A CN 111535300 B CN111535300 B CN 111535300B
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- 230000007613 environmental effect Effects 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/02—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements
- B66C23/022—Pivot axis common with column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/02—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements
- B66C23/025—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with non-adjustable and non-inclinable jibs mounted solely for slewing movements with particular mounting for base of column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
- Bridges Or Land Bridges (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an environment-friendly bridge pile foundation construction method for water conservancy construction, which comprises steel pipe piles distributed in a matrix manner, wherein a flat union pipe is welded on the outer wall between the adjacent steel pipe piles and used for enhancing the overall firmness between the steel pipe piles, the steel pipe piles and the flat union pipe are buried beside a constructed foundation, the top ends of the steel pipe piles extend out of the foundation, an attached sleeve frame is nested at the top ends of the steel pipe piles, and a plurality of sleeve frames are welded with the lower surface of a main beam, so that the water conservancy construction method has the beneficial effects that: utilize the vibratory hammer to execute the shake to the top of tube, flow into the drain hole with the muddy water extrusion, discharge from the side of tube through the export, at the in-process of pouring, utilize the setting of conducting hole, fill up the tube with the concrete in, and the rammer is tamped constantly sinking, utilize simultaneously in the muddy water entering tube of the isolated its bottom of closing cap board, utilize drain hole and export cooperation rivers to carry out the mud drainage, reduce the work load of mud extraction, the completion time of engineering with higher speed, need use the problem of a large amount of energy extraction muddy water undoubtedly.
Description
Technical Field
The invention relates to the field of bridge pile foundation construction, in particular to a water conservancy construction environment-friendly bridge pile foundation construction method.
Background
The low pile foundation is a deep foundation consisting of piles and pile bearing platforms (bearing platforms for short) connected with the pile tops or a single pile foundation connected with the piles by the piles and the pile foundation, namely a pile foundation for short, and if the pile bodies are completely buried in the soil and the bottom surfaces of the bearing platforms are contacted with the soil body, the low pile foundation is called as a low pile foundation; when the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap pile foundation. Building pile foundations are generally low-cap pile foundations, and in high-rise buildings, the pile foundations are widely applied, and in the process of erecting bridges, the pile foundations are often used for supporting.
The pile foundation is widely applied to each construction structure in the current building engineering construction, and in the modern building engineering construction, the pile foundation is adopted, so that the construction period is saved, the construction quality of the building engineering can be ensured, and good economic benefit and social benefit can be obtained in the construction process. Along with the continuous development of current social technical measures and social systems, the types of piles, the pile foundation forms, construction processes and equipment, the pile foundations and related methods are gradually developed along with the development of current social science and technology, and the pile foundation type, the pile foundation construction process, the pile foundation construction equipment, the pile foundation type, the construction process, the construction equipment, the pile foundation foundations and the related methods are the main forms for improving foundations in various poor soil qualities and regions, and the main foundation treatment requirements in the construction of high-rise buildings and large buildings.
Present bridge pile foundation is built and is exactly utilizing equipment cooperation to protect a section of thick bamboo extraction mud, then utilize concrete placement's process, the mud of taking out need just can discharge through handling, the polluted environment that the rubbish that various during operation produced can be serious simultaneously, need use a large amount of energy undoubtedly in the processing, such pile driving mode is slow at some rivers, when the water layer is more shallow and build the bridge in the river of surface of water broad, will appear serious energy waste, can not respond the number of national energy-concerving and environment-protective.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a water conservancy construction environment-friendly bridge pile foundation construction method, which aims to overcome the technical problems in the prior related art.
The technical scheme of the invention is realized as follows:
the utility model provides a bridge pile foundation construction equipment of water conservancy construction environmental protection, is the steel-pipe pile that the matrix distributes, outside the top of steel-pipe pile extended to the ground to there is adnexed stock on its top nestification, the lower surface of a plurality of stocks and girder welds mutually, four end foot departments of the up end of girder weld vertical ascending base, be tying on the tower crane of installation on the base and pour into the concrete pipe.
Furthermore, a flat connecting pipe is welded on the outer wall between the adjacent steel pipe piles and used for enhancing the overall firmness between the steel pipe piles, the steel pipe piles and the flat connecting pipe are buried beside a constructed foundation, the outer walls of the two symmetrical sleeve frames are respectively movably connected with an inner support and an outer support through pin shafts, and the ports at the other ends of the inner support and the outer support are meshed on a pier bearing platform through penetrating bolts;
reinforcing plates connected with the main beam are welded on four side walls of the base, a plurality of tower crane bases accumulated with each other are fixed at the top end of the base, a rotary table for rotation is installed at the top of each tower crane base, a tower crane with two extending ends is fixed on the rotary table, a balancing weight is fixed at one end of the tower crane through a bolt, a displacement sleeve sliding back and forth is installed at the other end of the tower crane, and a concrete pouring guide pipe is tied on a rope which stretches up and down in the displacement sleeve;
the concrete-pouring guide pipe comprises reinforcing steel bars, partition plates, a cover plate and a pipe shell, wherein the reinforcing steel bars are inserted along the axis of the pipe shell and are encircled into a circle structure, the partition plates are fixed on the inner wall of the pipe shell and divide the inner cavity of the pipe shell to form a plurality of spaces which are distributed up and down, a plurality of through holes are formed in the partition plates in a surrounding mode, and the pipe shell enables the spaces in the pipe shell to be communicated with one another through the through holes;
the sealing cover plate is fixed on the inner wall close to the port of the pipe shell, the lower end opening of the pipe shell is sealed, a plurality of drain holes 8 are processed on the inner wall of the pipe shell below the sealing cover plate at equal intervals, and the drain holes 8 are processed on the pipe shell above the sealing cover plate along the axial direction of the pipe shell to form an outlet 9 communicated with the drain holes.
Furthermore, the number of the drain holes and the number of the outlets correspond to each other, and a channel formed by the drain holes and the outlets is located between the adjacent reinforcing steel bars.
Further, the pipe shell at one end of the cover plate is inserted in alignment with the dug pile position and is always kept in a vertical state during insertion.
Furthermore, the steel pipe piles are distributed in a 3H 3 matrix, and the cross sections of the parallel pipes and the steel pipe piles form a component shaped like a Chinese character 'Tian'.
Further, the pulley card that connects is sheathe in to the displacement is on the tower crane to move on the tower crane.
Further, the pier cap fixed by the inner support and the outer support is level with the bridge pile foundation.
The invention provides another technical method, in particular to a water conservancy construction environment-friendly bridge pile foundation construction method, which comprises the following steps:
s1: firstly, mounting a pier bearing platform beside a bridge pile foundation, digging a foundation pit for accommodating a steel pipe pile and a horizontal coupling pipe beside the pier bearing platform, inserting the steel pipe pile into the foundation pit, filling soil and tamping;
s2: the sleeve frame and the main beam are welded on the protruded top end of the steel pipe pile, the bolt penetrates through two ends of the inner support and the outer support, and the inner support and the outer support are fixed with the sleeve frame and the pier cap respectively after the angle of the inner support and the angle of the outer support are adjusted through the bolt;
s3: the tower crane bases are mutually accumulated and then fixed on the bases, and pile positions for placing concrete pouring guide pipes are dug out;
s4: hoisting the concrete pouring guide pipe to the position right above the pile position by using a tower crane to ensure that the concrete pouring guide pipe is vertical, downwards arranging one end of the sealing cover plate, slowly and vertically sinking the pipe shell until the pipe shell is stably filled with the mud, and then, positioning the upper end of the pipe shell above the water surface;
s5: vibrating the top end of the pipe shell by using a vibration hammer, and sinking the pipe shell to the designed depth in the descending process;
s6: pour the concrete in the opening more than the tube surface of water, utilize the setting of conducting hole, fill up the tube with the concrete in, reuse the vibration hammer and execute the vibrations to the tube, the concrete constantly sinks at the in-process of vibrations and tamps, fills up the tube and accomplishes the construction.
Further, aiming at S5, the drain hole and the sealing cover plate slowly sink and are embedded into the mud in the continuous vibration process, the sealing cover plate prevents mud water from entering the pipe shell, and the mud water is extruded to flow into the drain hole and is discharged from the side face of the pipe shell through the outlet.
The invention has the beneficial effects that: the concrete pouring method comprises the steps of hoisting a concrete pouring conduit to a position right above a pile position by using a tower crane, enabling the concrete pouring conduit to be vertical, enabling one end of a sealing cover plate to face downwards, enabling a pipe shell to slowly and vertically sink to be stable when entering mud, vibrating the top end of the pipe shell by using a vibration hammer, extruding and flowing the mud water into a drainage hole, discharging the mud water from the side face of the pipe shell through an outlet, and in the pouring process, utilizing the arrangement of a conducting hole to fill the concrete into the pipe shell, continuously sinking and tamping, simultaneously isolating the mud water at the bottom of the pipe shell from the sealing cover plate to enter the pipe shell, utilizing the drainage hole and the outlet to be matched with water flow to conduct sludge drainage, then extracting the sludge in the space in the descending process, reducing the workload of sludge extraction, shortening the completion time of engineering, and undoubtedly requiring the use of a large amount of energy to extract the mud water.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is an overall front view of a water conservancy construction environment-friendly bridge pile foundation construction method according to an embodiment of the invention;
FIG. 2 is a top view of the whole body in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
FIG. 3 is a schematic structural diagram of the upper end of a concrete pouring guide pipe in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
FIG. 4 is a schematic structural diagram of the lower end of a concrete pouring guide pipe in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
FIG. 5 is a schematic diagram of a structure of a partition plate in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
FIG. 6 is a schematic diagram of an internal structure of a concrete pouring conduit in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
FIG. 7 is a schematic diagram of bridge laying in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention;
fig. 8 is a schematic side view of bridge laying in the water conservancy construction environment-friendly bridge pile foundation construction method according to the embodiment of the invention.
In the figure:
1. steel pipe piles; 2. parallel connection pipes; 3. sleeving a frame; 31. internal bracing; 32. externally supporting; 4. a main beam; 5. a base; 51. a reinforcing plate; 52. a tower crane base; 6. a turntable; 61. tower crane; 611. a balancing weight; 612. a displacement sleeve; 7. pouring a concrete guide pipe; 71. reinforcing steel bars; 72. a partition plate; 721. conducting holes; 73. sealing the cover plate; 74. a pipe shell; 8. a drain hole; 9. an outlet; 10. a pier cap.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The first embodiment is as follows:
according to the embodiment of the invention, the invention provides a water conservancy construction environment-friendly bridge pile foundation construction method.
As shown in figures 1-2, a water conservancy construction environmental protection bridge pile foundation construction device comprises steel pipe piles 1 which are distributed in a matrix, parallel pipes 2 are welded on the outer wall between the adjacent steel pipe piles 1 and used for reinforcing the overall firmness between the steel pipe piles 1, the steel pipe piles 1 are distributed in a 3 x 3 matrix, the parallel pipes 2 and the cross sections of the steel pipe piles 1 form a component shaped like a Chinese character 'tian', the structure shaped like the Chinese character 'tian' has stronger horizontal supporting force, a plurality of rows of the parallel pipes 2 generate the same supporting force to the steel pipe piles 1 from top to bottom, the lateral pressure borne by the steel pipe piles 1 is the same and is prevented from being deformed, the steel pipe piles 1 and the parallel pipes 2 are buried beside the constructed foundation, the top end of the steel pipe pile 1 extends out of a foundation, the top end of the steel pipe pile 1 is nested with an attached sleeve frame 3, the sleeve frame 3 is arranged around the steel pipe pile 1, a plurality of sleeve frames 3 are welded with the lower surface of a main beam 4, and the welding fixation of the sleeve frames 3 and the main beam 4 is completed in a mode of combining spot welding and rivet welding, wherein the outer walls of the two symmetrical sleeve frames 3 are respectively movably connected with an inner support 31 and an outer support 32 through pin shafts, the inner support 31 and the outer support 32 complete rotation by taking the outer wall of the sleeve frame 3 as a center, a plurality of angles can be adjusted, and the other end ports of the inner support 31 and the outer support 32 are meshed on a pier bearing platform 10 through penetrating bolts; vertical upward base 5 is welded at four end feet of the upper end face of the main beam 4, reinforcing plates 51 connected with the main beam 4 are welded on four side walls of the base 5, the firmness of connection between the base 5 and the main beam 4 is improved due to the arrangement of the reinforcing plates 51, a plurality of tower crane bases 52 accumulated mutually are fixed at the top end of the base 5, a rotating disc 6 used for rotation is installed at the top of each tower crane base 52, the rotating disc 6 is installed on each tower crane base 52, a tower crane 61 extending from two ends is fixed on each rotating disc 6, the tower crane 61 rotates on each rotating disc 6, a balancing weight 611 is fixed at one end of each tower crane 61 through a bolt, the balance is completed due to the arrangement of the balancing weight 611, a displacement sleeve 612 sliding back and forth is installed at the other end of each tower crane 61, one end of each displacement sleeve 612 moves back and forth on each tower crane 61, a concrete filling guide pipe 7 is tied to a rope stretching up and down in each displacement sleeve 612, and the concrete filling guide pipe 7 is controlled by each tower crane 61, and the lifting, the position and the lifting of the concrete filling guide pipe 7 are completed.
As shown in fig. 3-5, the concrete-pouring duct 7 includes a steel bar 71, a partition plate 72, a cover plate 73 and a pipe shell 74, the steel bar 71 is inserted along the axis of the pipe shell 74 and is wound into a circle, the partition plates 72 are fixed on the inner wall of the pipe shell 74 and partition the inner cavity of the pipe shell 74 to form a plurality of spaces distributed up and down, a plurality of through holes 721 are formed around the partition plates 72, the cross section of each through hole 721 is trapezoidal, the through hole 721 is larger in diameter and is upward, the through hole is smaller in diameter and is downward, so that concrete can conveniently flow into the inner cavity of the pipe shell 74 in the next layer, the pipe shell 74 makes the plurality of spaces inside the pipe shell mutually communicated through the through hole 721 to perform independent partition and improve the radial supporting force of the pipe shell.
As shown in fig. 6, the cover plate 73 is fixed on the inner wall near the end of the pipe shell 74, the pipe shell 74 at one end of the cover plate 73 is inserted in alignment with the dug pile position and always kept in a vertical state when being inserted, the pipe shell 74 is vertically just aligned with the pile opening and can be inserted, the lower end opening of the pipe shell 74 is sealed, a plurality of drain holes 8 are formed in the inner wall of the pipe shell 74 below the cover plate 73 at equal intervals, the drain holes 8 are formed in the pipe shell 74 above the cover plate 73 along the axial direction of the pipe shell 74 and are communicated with outlets 9, the number of the drain holes 8 corresponds to that of the outlets 9 one by one, the channel formed by the drain holes 8 and the outlets 9 is located between adjacent reinforcing steel bars 71, the channel formed by the drain holes 8 and the outlets 9 cannot be communicated with the reinforcing steel bars 71, moisture cannot enter the reinforcing steel bars 71, and the rusting and damage speed of the pipe shell is prevented from being increased.
The invention provides another technical method, in particular to a water conservancy construction environment-friendly bridge pile foundation construction method, which comprises the following steps:
the method comprises the following steps: firstly install mound cushion cap 10 on one side at the bridge pile foundation to dig out the foundation ditch of holding steel-pipe pile 1 and parallel pipe 2 on one side at mound cushion cap 10, in steel-pipe pile 1 inserted the foundation ditch, and fill up the soil and tamp:
step two: the sleeve frame 3 and the main beam 4 are welded on the protruded top end of the steel pipe pile 1, the bolt penetrates through two ends of the inner support 31 and the outer support 32, and the inner support 31 and the outer support 32 are fixed with the sleeve frame 3 and the pier platform 10 respectively after the angle is adjusted through the bolt;
step three: the tower crane bases 52 are mutually accumulated and then fixed on the base 5, and a pile position for placing the concrete pouring guide pipe 7 is dug out;
step four: hoisting the concrete pouring guide pipe 7 to the position right above the pile position by using a tower crane 61 to ensure that the concrete pouring guide pipe 7 is vertical, downwards facing one end of a sealing cover plate 73, slowly and vertically sinking the pipe shell 74 until the pipe shell is stably filled with the mud, and at the moment, the upper end of the pipe shell 74 is positioned above the water surface;
step five: vibrating the top end of the pipe shell 74 by using a vibration hammer, slowly sinking the drain hole 8 and the cover plate 73 to be embedded into mud in the continuous vibration process in the descending process, blocking mud water from entering the pipe shell 74 by the cover plate 73, extruding the mud water to flow into the drain hole 8, and discharging the mud water from the side surface of the pipe shell 74 through the outlet 9 to enable the pipe shell 74 to sink to the designed depth;
step six: and pouring concrete into the opening above the water surface of the pipe shell 74, filling the pipe shell 74 with the concrete by using the through hole 721, vibrating the pipe shell 74 by using the vibration hammer again, continuously sinking and tamping the concrete in the vibrating process, and filling the pipe shell 74 to complete construction.
According to the scheme of the invention, the hoisting, position replacement and hoisting of the concrete-filled conduit 7 can be completed by rotating the tower crane 61 on the rotary table 6, the concrete-filled conduit 7 is hoisted to be right above the pile position by the tower crane 61, the concrete-filled conduit 7 is vertical, one end of the sealing cover plate 73 faces downwards, the pipe shell 74 slowly and vertically sinks until the mud is stably filled, the top end of the pipe shell 74 is vibrated by the vibration hammer, the mud water is extruded and flows into the drainage hole 8, the mud water is discharged from the side surface of the pipe shell 74 through the outlet 9, the pipe shell 74 is vibrated by the vibration hammer, the concrete continuously sinks and tamps in the vibrating process, the pipe shell 74 is filled with the mud, the construction is completed, the mud can be filled in the pipe shell 74 by the arrangement of the through hole 721 in the pouring process, the tamping is continuously performed, the mud water at the bottom of the pipe shell 74 is isolated by the sealing cover plate 73, the drainage hole 8 and the outlet 9 are matched with water flow to drain the mud, then the sludge in the space in the descending process is extracted, the workload of the sludge extraction is reduced, the use time of the engineering is accelerated, and the use of a large amount of the mud water required for the sludge extraction is undoubtedly completed.
Example two:
as shown in fig. 7-8, in the first embodiment, after the concrete-pouring conduits 7 are embedded into the foundation pit, a bridge is laid on the concrete-pouring conduits 7, the elevation of the top ends of the concrete-pouring conduits 7 is measured, the deviation generated by each concrete-pouring conduit 7 is adjusted in time, the bearing platform is fixed on the centers of the pile foundations and the upright posts, and the middle bridge pier and the head bridge pier are poured; the bridge is characterized in that a plurality of middle bridge piers and end bridge piers at two sides are connected to form a bridge support higher than a ground line, an anti-seismic stop block is fixed above the end bridge piers of the cross beams, a support is fixed above the middle bridge pier of the cross beams, a wedge-shaped groove in the bridge floor is inserted into the support, and the support is connected and fixed with the erected bridge floor by using a bolt; the arch feet are assembled on the bridge floor in sections to connect the arch ribs into an arch, an arc arch bridge is designed, the length of the lower chord line is consistent with the distance between the arch feet, the height of the arch ribs is consistent with the height of a steel structure building, part of the thickness of the upper surface layer of the bridge floor is planed, then floating dust impurities on the surface of the road surface are removed, and open-graded asphalt mixture is laid.
The bridge floor adopts steel and concrete combination roof beam, solves traditional concrete bridge floor and has had from major, the fatigue problem of steel bridge floor outstanding key technology difficult problem, and the structure setting of pouring concrete pipe 7 improves bridge structures security and durability, improves lower part foundation bearing capacity, improves bridge security and life.
In summary, according to the technical scheme of the invention, the concrete pouring conduit 7 is lifted by the tower crane 61 to a position right above the pile position, so that the concrete pouring conduit 7 is vertical, one end of the cover plate 73 faces downwards, the pipe shell 74 slowly and vertically sinks to a stable state of entering mud, the top end of the pipe shell 74 is vibrated by the vibration hammer, muddy water is squeezed and flows into the drainage hole 8 and is discharged from the side surface of the pipe shell 74 through the outlet 9, in the pouring process, the pipe shell 74 is filled with concrete by the arrangement of the through hole 721 and is tamped continuously, meanwhile, the cover plate 73 is used for isolating muddy water at the bottom of the pipe shell 74 from entering the pipe shell 74, the drainage hole 8 and the outlet 9 are used for sludge drainage by matching with water flow, then sludge in the space in the descending process is extracted, the work load of sludge extraction is reduced, the project completion time is accelerated, and the problem that a large amount of energy is needed for sludge extraction is undoubted.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (1)
1. The method is characterized in that a water conservancy construction environment-friendly bridge pile foundation construction device is utilized, the device comprises steel pipe piles (1) distributed in a matrix manner, flat connecting pipes (2) are welded on the outer wall between every two adjacent steel pipe piles (1), the steel pipe piles (1) are distributed in a matrix manner of multiplying 3 by 3, the cross sections of the flat connecting pipes (2) and the steel pipe piles (1) form a Tian-shaped component, multiple rows of the flat connecting pipes (2) generate the same supporting force on the steel pipe piles (1) from top to bottom, the steel pipe piles (1) and the flat connecting pipes (2) are buried beside a constructed foundation, the top ends of the steel pipe piles (1) extend out of the foundation, attached sleeve frames (3) are nested at the top ends of the steel pipe piles, the sleeve frames (3) are welded with the lower surface of the steel pipe piles (4), the outer walls of the two symmetrical sleeve frames (3) are respectively movably connected with an inner support (31) and an outer support (32) through pin shafts, and the outer support (31) and the end opening of a main girder (10) penetrates through a bearing pier; four end feet of the upper end face of the main beam (4) are welded with a vertical upward base (5), four side walls of the base (5) are welded with reinforcing plates (51) connected with the main beam (4), a plurality of tower crane bases (52) accumulated with each other are fixed at the top end of the base (5), a rotating disc (6) used for rotating is installed at the top of each tower crane base (52), a tower crane (61) with two extending ends is fixed on the rotating disc (6), the tower crane (61) rotates on the rotating disc (6), one end of the tower crane (61) passes through a bolt fixed balancing weight (611), a displacement sleeve (612) sliding back and forth is installed at the other end of the tower crane (61), a concrete pouring guide pipe (7) is tied on a rope extending up and down in the displacement sleeve (612), the concrete pouring guide pipe (7) comprises a reinforcing steel bar (71), partition plates (72), a cover plates (73) and pipe shells (74), the reinforcing steel bar (71) is inserted along the axis of the pipe shells (74) and is wound into a circle, the partition plates (72) are fixed on the inner wall of the partition plates (74), a plurality of partition plates (74), the partition plates (721) are divided, the inner walls of the partition plates (74), the partition plates (721) are uniformly distributed around the through holes (721) to form a plurality of through holes, and the through holes (721), and the through holes (72) which are uniformly distributed on the through holes (721), the pipe shell (74) at one end of the cover plate (73) is inserted in alignment with the dug pile position and always kept in a vertical state when being inserted, the pipe shell (74) is vertically and exactly aligned with the pile opening and can be inserted, the lower end opening of the pipe shell (74) is sealed, a plurality of drain holes (8) are processed on the inner wall of the pipe shell (74) below the cover plate (73) at equal intervals, the drain holes (8) are processed on the pipe shell (74) above the cover plate (73) along the axial direction of the pipe shell (74) and communicated with the drain holes (9), the number of the drain holes (8) and the number of the drain holes (9) are in one-to-one correspondence, a channel formed by the drain holes (8) and the drain holes (9) is positioned between the adjacent steel bars (71), the channel formed by the drain holes (8) and the drain holes (9) cannot be communicated with the steel bars (71), and moisture cannot enter the steel bars (71),
the method comprises the following steps:
s1: firstly, mounting the pier bearing platform (10) beside a bridge pile foundation, digging a foundation pit for accommodating the steel pipe pile (1) and the parallel pipe (2) beside the pier bearing platform (10), inserting the steel pipe pile (1) into the foundation pit, filling soil and tamping;
s2: the sleeve frame (3) and the main beam (4) are welded on the protruded top end of the steel pipe pile (1), a bolt penetrates through two ends of the inner support (31) and the outer support (32), and the inner support (31) and the outer support (32) are respectively fixed with the sleeve frame (3) and the pier cap (10) after the angle is adjusted through the bolt;
s3: the tower crane bases (52) are mutually accumulated and then fixed on the bases (5), and pile positions for placing the concrete pouring guide pipes (7) are dug out;
s4: hoisting the concrete pouring guide pipe (7) to the position right above the pile by using the tower crane (61), enabling the concrete pouring guide pipe (7) to be vertical, enabling one end of the sealing cover plate (73) to face downwards, slowly and vertically sinking the pipe shell (74) to a stable mud entering position, and enabling the upper end of the pipe shell (74) to be located above the water surface;
s5: vibrating the top end of the pipe shell (74) by using a vibration hammer, and sinking the pipe shell (74) to a designed depth in the descending process;
s6: pouring concrete into the opening above the water surface of the pipe shell (74), filling the pipe shell (74) with the concrete by utilizing the arrangement of the through hole (721), vibrating the pipe shell (74) by using the vibration hammer again, continuously sinking and tamping the concrete in the vibrating process, and filling the pipe shell (74) to complete construction,
aiming at S5, the drain hole (8) and the sealing cover plate (73) slowly sink and are embedded into mud in the continuous vibration process, the sealing cover plate (73) prevents mud water from entering the pipe shell (74), presses the mud water to flow into the drain hole (8), and discharges the mud water from the side face of the pipe shell (74) through the outlet (9).
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| CN113513009B (en) * | 2021-07-29 | 2022-09-16 | 江苏瑞沃建设集团有限公司 | Foundation treatment structure for deep silt |
| CN116479867B (en) * | 2023-05-15 | 2024-03-26 | 中国水利水电第十二工程局有限公司 | Bridge pile foundation construction method for water conservancy construction environment protection |
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| CN1896383B (en) * | 2005-07-14 | 2011-12-07 | 胡柏英 | Steel-pipe concrete assembled pile of predrilled hole rock-embedded and its construction |
| CN202031081U (en) * | 2011-04-15 | 2011-11-09 | 傅健 | Pipe sinking cast-in-place pile with soil discharge pipes |
| CN107012881B (en) * | 2017-05-24 | 2019-01-18 | 浙江明通建设工程有限公司 | Bridge Pile Foundation Construction method |
| CN107587504A (en) * | 2017-09-29 | 2018-01-16 | 中国十七冶集团有限公司 | A kind of dry excavation method of the double steel pile casting churning drivens of cast-in-situ bored pile of overpass |
| CN207484486U (en) * | 2017-11-06 | 2018-06-12 | 张丽 | Concrete vertically pours delivery pipe |
| CN207659983U (en) * | 2017-12-20 | 2018-07-27 | 广东庞源工程机械有限公司 | A kind of steel-pipe pile steel construction cushion cap tower crane foundation structure |
| CN109826220B (en) * | 2019-03-27 | 2021-01-15 | 华北水利水电大学 | Energy-saving and environment-friendly bridge pile foundation construction method |
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