CN111042135A - Novel one-column one-pile verticality adjusting construction method - Google Patents
Novel one-column one-pile verticality adjusting construction method Download PDFInfo
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- CN111042135A CN111042135A CN201911370840.6A CN201911370840A CN111042135A CN 111042135 A CN111042135 A CN 111042135A CN 201911370840 A CN201911370840 A CN 201911370840A CN 111042135 A CN111042135 A CN 111042135A
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- pipe column
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
- E02D29/055—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Foundations (AREA)
Abstract
The invention discloses a novel one-column one-pile verticality adjusting construction method, which comprises the following steps of: carrying out pile hole forming construction; fixedly connecting a correction frame with the steel pipe column, wherein the correction frame comprises a correction steel plate and an adjusting screw rod, and the correction steel plate is sleeved on the steel pipe column and is perpendicular to the axis of the steel pipe column; placing a positioning frame, and placing and temporarily fixing a reinforcement cage; lifting the steel pipe column, inserting the bottom of the steel pipe column into a reinforcement cage, fixing a lifting rib on an ear plate of the steel pipe column on the reinforcement cage, lowering the steel pipe column and the reinforcement cage to a designed position, adjusting an adjusting screw rod to enable the adjusting screw rod to be supported on a bottom plate of a positioning frame, and then changing the lifting rib to be fixed on the positioning frame; and pouring and vibrating concrete, monitoring the reading of the inclinometer in real time, and adjusting the adjusting screw rod to ensure that the correcting steel plate is kept horizontal. According to the construction method, the perpendicularity adjustment of the steel pipe column is realized by adjusting the level of the correction frame, the verticality adjustment difficulty is greatly reduced, and the construction method has the advantages of small verticality adjustment difficulty, high precision and good stability.
Description
Technical Field
The invention relates to a novel one-column one-pile verticality adjusting construction method, and belongs to the technical field of building construction.
Background
At present, in reverse construction method foundation pit engineering, the vertical support column adopts the structural style of a post-pile more, adopts the traditional to transfer the frame of hanging down when transferring the support column to hang down usually, transfers to hang down the precision low and unstable, hangs down the straightness and receives the influence of subsequent handling easily.
Disclosure of Invention
The invention provides a novel one-column-one-pile verticality adjusting construction method which is used for solving the problem in verticality adjustment of a vertical supporting column in the reverse construction method construction process. The construction method is simple and convenient to operate, the verticality is monitored and adjusted in real time through coarse adjustment and fine adjustment, the influence of subsequent processes such as gravel backfilling and concrete tamping on the verticality is effectively reduced, the problem that the verticality of the vertical support column is difficult to adjust is solved, and the verticality of the attribute support column is guaranteed.
In order to solve the technical problems, the invention comprises the following technical scheme:
a novel one-column one-pile verticality adjusting construction method is characterized in that a steel pipe column and a reinforced concrete cast-in-place pile are adopted for one column, and the construction method comprises the following steps:
positioning the pile hole, pouring a hardened terrace around the pile hole, then carrying out pile machine leveling, centering and hole forming operation, and removing the pile machine after the pile hole construction is finished;
fixedly connecting the correcting frame with the steel pipe column; the correcting frame comprises a correcting steel plate and an adjusting screw rod, a through hole is formed in the middle of the correcting steel plate, bolt holes are formed along the periphery of the through hole, and the adjusting screw rod is located in the bolt holes and is perpendicular to the correcting steel plate; a correcting steel plate of the correcting frame is sleeved at one end of the steel pipe column and is perpendicular to the axis of the steel pipe column;
placing a positioning frame, and lowering the prefabricated reinforcement cage into the pile hole, so that the top of the last section of reinforcement cage is lowered to the top of the pile hole and then temporarily fixed;
lifting the steel pipe column, zeroing the inclinometer in a vertical state of the steel pipe column, arranging a lug plate with holes on the steel pipe column, arranging lifting ribs on the lug plate, inserting the bottom of the steel pipe column into a reinforcement cage, fixing the bottom of the lifting ribs on the reinforcement cage, lowering the steel pipe column and the reinforcement cage to a designed position together, then changing the lifting ribs to be fixed on a positioning frame, and preliminarily adjusting an adjusting screw rod to enable the adjusting screw rod to be supported on a bottom plate of the positioning frame;
pouring and vibrating concrete, monitoring the reading of the inclinometer in real time, ensuring that a correction steel plate of the correction frame is kept horizontal by adjusting the adjusting screw rod, and dismantling the inclinometer, the correction frame and the positioning frame after the concrete pouring is finished and the final setting is reached.
Furthermore, an operation hole is formed in a correction steel plate of the correction frame, a bolt hole communicated with the through hole is formed in the operation hole, and the correction steel plate is fixedly connected with the steel pipe column through a high-strength bolt.
Further, plain concrete or reinforced concrete is adopted as a positioning platform of the mounting frame for a hardened terrace poured around the pile hole; and a preformed hole is arranged in the middle of the hardened terrace, and the diameter of the preformed hole is +20 cm.
And furthermore, inserting a steel reinforcement cage identification line is arranged on the steel pipe column, and the steel pipe column is placed to the identification line, and the bottom of the hanging rib is connected with the steel reinforcement cage.
Furthermore, the inclinometer is replaced by a horizontal monitoring instrument for correcting the steel plate, and the adjusting screw rod is adjusted through the monitoring horizontal monitoring instrument in the construction process, so that the level of the corrected steel plate is ensured.
Furthermore, the correction steel plate of the correction frame is in a gear shape and comprises a plurality of teeth, and the adjusting screw is positioned on the teeth.
Furthermore, a plurality of rows of pegs are arranged on the side wall of the steel pipe column inserted into the steel reinforcement cage.
According to the novel one-column one-pile verticality adjusting construction method, the verticality adjustment of the steel pipe column is realized by adjusting the level of the correcting frame, the verticality adjusting difficulty is greatly reduced, the problem of verticality adjustment of the vertical supporting column in the reverse construction method construction process is successfully solved, the adopted mechanical structure is simple, the operation is simple and convenient, the verticality adjusting difficulty is small, the precision is high, the stability is good, the work efficiency can be effectively improved, the influence of subsequent processes on the verticality is reduced, the high-precision verticality adjusting effect is ensured, and therefore huge economic benefits and social benefits are indirectly formed at low cost.
Drawings
FIG. 1 is a schematic view of a pile hole positioning and hardening floor in the present invention;
FIG. 2 is a schematic view of the connection between the calibration frame and the steel pipe column according to the present invention;
FIG. 3 is a schematic view taken along A-A of FIG. 2;
FIG. 4 is a top view of the spacer of the present invention;
FIG. 5 is a construction drawing in which a steel pipe column and a reinforcement cage are lowered together;
FIG. 6 is a schematic diagram of adjusting perpendicularity of a steel pipe column by a correction frame;
fig. 7 is a top view of fig. 6.
The numbers in the figures are as follows:
1-pile hole; 2-hardening the floor; 3-preparing a hole; 4-a steel bracket; 5-an inclinometer; 6-a reinforcement cage; 7-hanging the ribs;
10-a positioning frame; 11-side plate; 12-a base plate; 13-a through hole;
20-a correcting frame; 21-correcting the steel plate; 22-adjusting screw; 23-an operation hole; 24-a high-strength bolt;
30-steel pipe column; 31-ear plate.
Detailed Description
The following will explain the novel one-column one-pile verticality adjusting construction method provided by the invention in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent in conjunction with the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
In the top-down construction method foundation pit engineering, aiming at the difficult problem of verticality adjustment of the vertical supporting column, the embodiment provides a novel one-column one-pile verticality adjustment construction method, wherein a steel pipe column and a reinforced concrete cast-in-place pile are adopted for one column, and the construction specifically comprises the following steps:
the method comprises the following steps of firstly, positioning the pile hole, pouring a hardened terrace around the pile hole, then carrying out pile machine leveling, centering and hole forming operation, and removing the pile machine after the pile hole is constructed.
As shown in fig. 1, a hardened terrace 2 is constructed around the pile hole 1, and the hardened terrace can be made of plain concrete or reinforced concrete and used as a positioning platform of the mounting frame; the middle of the hardening terrace is provided with a preformed hole 3, and the diameter of the preformed hole 3 is +20 cm. And (3) lofting the axis and the four positioning points while measuring the center of the lofted reinforced concrete cast-in-place pile. And punching a positioning hole by using a percussion drill to prepare for the future lowering of the upright post correcting frame.
The hole forming construction of the pile machine can adopt the existing construction process, and the detailed description is omitted here.
Step two, combining the drawings shown in fig. 2 and 3, fixedly connecting the correcting frame 20 with the steel pipe column 30; the correcting frame 20 comprises a correcting steel plate 21 and an adjusting screw rod 22, a through hole is formed in the middle of the correcting steel plate 21, bolt holes are formed in the periphery of the through hole, and the adjusting screw rod 22 is located in the bolt holes and perpendicular to the correcting steel plate 21.
In the construction process, the steel pipe column 30 can be transversely placed on the steel support 4, the correcting steel plate 21 of the correcting frame 20 is sleeved at one end of the steel pipe column 30 and perpendicular to the axis of the steel pipe column 30, an operating hole 23 is formed in the correcting steel plate 21 of the correcting frame 20, a bolt hole communicated with the through hole is formed in the operating hole 23, the correcting steel plate 21 is fixedly connected with the steel pipe column 30 through the high-strength bolt 24, and the correcting frame is convenient to disassemble after construction. The inclinometer 5 is attached to the alignment jig 20 or the steel pipe column 30. The inclinometer 5 is used for detecting whether the steel pipe column is vertical or not in the construction process. Since the calibration steel plate is fixed integrally with the steel pipe column, the inclinometer 5 may be placed on the steel pipe column or the calibration frame.
As shown in fig. 3, the calibration steel plate 21 of the calibration frame 20 is gear-shaped and includes a plurality of teeth, and the adjustment screw 22 is located on the teeth. By the design, the steel consumption can be reduced as much as possible on the premise of ensuring the rigidity of the steel plate, and the cost is saved.
And step three, placing a positioning frame, and placing the prefabricated reinforcement cage into the pile hole, so that the top of the last section of reinforcement cage is placed to the top of the pile hole and then temporarily fixed.
As shown in fig. 4, the positioning frame 10 is a barrel-shaped structure with an open upper end and enclosed by side plates 11 and a bottom plate 12, the bottom plate is provided with a through hole 13, and the positioning frame 10 is fixed on the hardened terrace.
Step four, as shown in fig. 5, hoisting the steel pipe column, zeroing the inclinometer 5 in the vertical state of the steel pipe column, arranging a perforated ear plate 31 on the steel pipe column, arranging a hanging rib 7 on the ear plate 31, inserting the bottom of the steel pipe column into a reinforcement cage 6, fixing the bottom of the hanging rib 7 on the reinforcement cage 6, putting the steel pipe column and the reinforcement cage 6 to the designed position together, then changing the hanging rib 7 to be fixed on a positioning frame, and adjusting the adjusting screw 22 to enable the adjusting screw 22 to be supported on a bottom plate of the positioning frame.
The length of the hanging bar 7 is set according to the requirement, and the bottom of the hanging bar is fixed with the longitudinal main bar of the reinforcement cage 6. Through setting up and hanging muscle 7 to make steel reinforcement cage 6 transfer together with steel-pipe column 30, can guarantee the degree of depth that the steel-pipe column inserted in steel reinforcement cage 6. For more efficient construction, an inserted steel reinforcement cage identification line can be arranged on the steel pipe column. After the steel reinforcement cage is placed to the designed depth, the hanging ribs are separated from the steel pipe column, and the perpendicularity of the steel pipe column is conveniently adjusted.
In order to ensure the connection effect between the steel pipe column and the cast-in-place reinforced concrete pile, preferably, a plurality of rows of studs are arranged on the side wall of the steel pipe column inserted into the reinforcement cage.
And fifthly, pouring and vibrating concrete, monitoring the reading of the inclinometer in real time, ensuring that the correcting steel plate 21 of the correcting frame 20 is kept horizontal by adjusting the adjusting screw rod 22, and dismantling the inclinometer, the correcting frame and the positioning frame after the concrete pouring is finished and the final setting is reached.
The steel bracket 4 is vertically fastened and connected with the steel pipe column into a whole by high-strength bolts 24 as shown in figure 2. Because the verticality adjustment of the steel pipe column is realized by adjusting the level of the correcting frame, the verticality adjustment difficulty is greatly reduced, and the connection quality of the correcting frame and the steel pipe column is the premise that the verticality of the steel pipe column is ensured by the whole construction method and needs strict control.
In the invention, the verticality adjustment of the steel pipe column is realized by adjusting the level of the correcting frame, so that the inclinometer can be a level monitoring instrument.
The novel one-column one-pile verticality adjusting construction method successfully solves the verticality adjusting problem of the vertical support column in the reverse construction method construction process, adopts the construction method combining the inclinometer and the verticality adjusting frame, is simple in mechanical structure, simple and convenient to operate, small in verticality adjusting difficulty, high in precision and good in stability, can effectively improve work efficiency, reduces the influence of subsequent processes on verticality, ensures high-precision verticality adjusting effect, and indirectly forms great economic benefit and social benefit at low cost.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A novel one-column one-pile verticality adjusting construction method is characterized in that a steel pipe column and a reinforced concrete cast-in-place pile are adopted, and the construction method comprises the following steps:
positioning the pile hole, pouring a hardened terrace around the pile hole, then carrying out pile machine leveling, centering and hole forming operation, and removing the pile machine after the pile hole construction is finished;
fixedly connecting the correcting frame with the steel pipe column; the correcting frame comprises a correcting steel plate and an adjusting screw rod, a through hole is formed in the middle of the correcting steel plate, bolt holes are formed along the periphery of the through hole, and the adjusting screw rod is located in the bolt holes and is perpendicular to the correcting steel plate; a correcting steel plate of the correcting frame is sleeved at one end of the steel pipe column and is perpendicular to the axis of the steel pipe column;
placing a positioning frame, and lowering the prefabricated reinforcement cage into the pile hole, so that the top of the last section of reinforcement cage is lowered to the top of the pile hole and then temporarily fixed;
lifting the steel pipe column, zeroing the inclinometer in a vertical state of the steel pipe column, arranging a perforated ear plate on the steel pipe column, arranging a lifting rib on the ear plate, inserting the bottom of the steel pipe column into a reinforcement cage, fixing the bottom of the lifting rib on the reinforcement cage, lowering the steel pipe column and the reinforcement cage to a designed position, then changing the lifting rib to be fixed on a positioning frame, and preliminarily adjusting an adjusting screw rod to enable the adjusting screw rod to be supported on a bottom plate of the positioning frame;
pouring and vibrating concrete, monitoring the reading of the inclinometer in real time, ensuring that a correction steel plate of the correction frame is kept horizontal by adjusting the adjusting screw rod, and dismantling the inclinometer, the correction frame and the positioning frame after the concrete pouring is finished and the final setting is reached.
2. The verticality adjusting construction method according to claim 1,
the correcting steel plate of the correcting frame is provided with an operating hole, a bolt hole communicated with the through hole is formed in the operating hole, and the correcting steel plate is fixedly connected with the steel pipe column through a high-strength bolt.
3. The verticality adjusting construction method according to claim 1,
a hardened terrace is poured around the pile hole, and plain concrete or reinforced concrete is used as a positioning platform of the mounting frame; and a preformed hole is arranged in the middle of the hardened terrace, and the diameter of the preformed hole is +20 cm.
4. The verticality adjusting construction method according to claim 1,
and inserting a steel reinforcement cage identification line is arranged on the steel pipe column, and the steel pipe column is lowered to the identification line, and the bottom of the hanging reinforcement is connected with the steel reinforcement cage.
5. The verticality adjusting construction method according to claim 1, wherein the inclinometer is replaced by a horizontal monitoring instrument for correcting the steel plate, and the horizontal of the steel plate is guaranteed by monitoring the horizontal monitoring instrument and adjusting the adjusting screw rod in the construction process.
6. The setting construction method of claim 1, wherein the setting steel plate of the setting frame is gear-shaped and includes a plurality of teeth, and the adjusting screw is positioned on the teeth.
7. A verticality adjusting construction method according to claim 1, wherein a plurality of rows of pegs are provided on the side wall of the steel pipe column inserted into the reinforcement cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370840.6A CN111042135A (en) | 2019-12-27 | 2019-12-27 | Novel one-column one-pile verticality adjusting construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911370840.6A CN111042135A (en) | 2019-12-27 | 2019-12-27 | Novel one-column one-pile verticality adjusting construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111531498A (en) * | 2020-05-09 | 2020-08-14 | 南通利元亨机械有限公司 | Raymond mill mounting platform |
| CN111535318A (en) * | 2020-05-08 | 2020-08-14 | 上海建工四建集团有限公司 | Precise installation and adjustment device for steel pipe column by reverse construction method and use method |
| CN113026749A (en) * | 2021-02-07 | 2021-06-25 | 浙江交工集团股份有限公司 | Pile foundation reinforcement cage side-push type controller and construction method |
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| CN113026749A (en) * | 2021-02-07 | 2021-06-25 | 浙江交工集团股份有限公司 | Pile foundation reinforcement cage side-push type controller and construction method |
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Application publication date: 20200421 |