CN108468334B - Gravel stratum dry-excavation clay dado pore-forming bored concrete pile construction device - Google Patents
Gravel stratum dry-excavation clay dado pore-forming bored concrete pile construction device Download PDFInfo
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- CN108468334B CN108468334B CN201810193716.6A CN201810193716A CN108468334B CN 108468334 B CN108468334 B CN 108468334B CN 201810193716 A CN201810193716 A CN 201810193716A CN 108468334 B CN108468334 B CN 108468334B
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- reinforcement cage
- clay
- pore
- sliding plate
- plate
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/08—Sinking workpieces into water or soil inasmuch as not provided for elsewhere
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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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
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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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
Abstract
The invention discloses a gravel stratum dry-excavation clay retaining wall pore-forming cast-in-place pile construction device which comprises a driving motor, an installation bottom plate, a vertical guide rail, a screw rod, a sliding plate, a rotating rod a, a rotating rod b, a rotating pair a, a rotating pair b, a translation pair, a sliding chute, a steel wire rope and a horizontal plate, wherein the clay is reversely rotated by the pressure of a drilling machine, and is combined with soil around a pore wall by utilizing pore water of the soil in the pore to form a retaining wall, so that the operation is circulated until the depth of a designed pore is reached. Compared with the slurry retaining wall bored pile, the clay retaining wall scheme of the hole-digging bored pile has the main advantages that the clay with certain water content is used for replacing the traditional slurry, the process time is saved, the construction speed is obviously accelerated, the economic benefit is very obvious, the construction speed is high, a large amount of water resources are saved, the construction cost of the pile foundation is reduced, and the application prospect and the economic benefit are wide.
Description
Technical Field
The invention relates to a gravel stratum dry-excavation clay retaining wall pore-forming cast-in-place pile construction device, and belongs to the technical field of bridge construction processes.
Background
In recent years, with the construction of a large number of bridges in China, new construction processes of bridges are continuously developed, rotary drilling is used as a new construction process of pile foundation construction, although the development history of the bridge has been decades internationally, the bridge has been developed in nearly ten years in China, and the rotary drilling pile-pouring technology is regarded as a green construction process, has the characteristics of high installed power, high output torque, high axial pressure, flexibility, high construction efficiency, good pile-forming quality and small environmental pollution, can meet the construction requirements of various large-scale building foundation engineering, and is widely applied to the foundation construction of municipal construction, highway bridges, industrial and civil buildings, underground continuous walls, water conservancy, anti-seepage revetments and the like at present. The domestic experts consider that: the rotary drilling rig still has a large market in the future years in China.
The current commonly used pore-forming technologies mainly comprise dry-excavation pore-forming, slurry wall protection pore-forming and the like. The dry-digging pore-forming method has the advantages of low noise, low vibration, no waste gas emission, small occupied area, convenient lifting and transportation, fast progress, clean pore-forming and the like, has less power requirement and is more economical, but the dry-digging pore-forming operation has higher requirement on geological conditions, otherwise, the hole collapse is easily caused; the mud dado pore-forming technology is most widely applied at present, but the process has more construction links, more factors which easily cause quality problems in construction, slower construction speed and higher cost;
in addition, in the clay wall protection pore-forming technology, the positioning of the reinforcement cage is particularly critical. In the hoisting process of the steel reinforcement cage, the positioning of the verticality between the steel reinforcement cage and the drilled hole is very important, and the construction quality is easily reduced after the steel reinforcement cage collides with the clay protecting wall.
The clay protecting wall pore-forming technology bonds clay and soil around the pore wall through pressure and pore water of the soil in the pore to form a mud skin, so that the phenomenon of hole collapse is avoided in the drilling process.
The construction of the rotary drilling rig is used as a novel construction process, although the rotary drilling rig is widely applied, the problems in the construction are more and more, the problems of hole collapse, hole depth deflection, hole expansion, hole shrinkage, drill jamming and the like in the drilling process hinder the further development of the rotary drilling rig, and the rotary drilling technology in the complex stratum at present is relatively weak in research. The method is researched for the gravel stratum dry drilling clay retaining wall pore-forming cast-in-place pile, and the application range of the rotary drilling rig is further widened.
Disclosure of Invention
The invention aims to improve the construction quality of a gravel stratum dry-dug clay retaining wall pore-forming bored pile, firstly, a rigid connecting piece is adopted for hoisting and positioning of a steel reinforcement cage, and meanwhile, the positioning deviation which is easy to appear in the hoisting process is automatically adjusted to ensure the hoisting quality.
In order to achieve the purpose, the technical scheme adopted by the invention is that the construction device for hoisting and adjusting the steel reinforcement cage of the gravel stratum dry-excavated clay dado pore-forming bored concrete pile comprises a driving motor 1, an installation bottom plate 2, a vertical guide rail 3, a screw 4, a sliding plate 5, a rotating rod a6, a rotating rod b7, a rotating pair a8, a rotating pair b9, a translation pair 10, a sliding chute 11, a steel wire rope 12 and a horizontal plate 13; the mounting base plate 2 is fixed on a crane frame; one end of a steel wire rope 12 is tied at the circumferential position of the steel reinforcement cage 14, and the other end of the steel wire rope is connected with a steel wire rope hoop; the driving motors 1 are distributed in the circumferential direction of the mounting base plate 2, and the middle of the mounting base plate 2 is provided with a vertical guide rail 3; the middle part of the sliding plate 5 is matched with the vertical guide rail 3, and the sliding plate 5 can vertically move along the vertical guide rail 3; an output shaft of the driving motor 1 is connected with a screw rod 4, the screw rod 4 is installed in the circumferential direction of a sliding plate 5, a screw hole is formed in the circumferential direction of the sliding plate 5, and the sliding plate 5 is in threaded fit with the screw rod 4;
the horizontal plate 13 is connected with the sliding plate 5 through a rotating rod a6, the rotating rod a6 is connected with the sliding plate 5 through a revolute pair a8, and the rotating rod a6 is connected with the horizontal plate 13 through a translation pair 10; a chute 11 is arranged on the horizontal plate 13, and the chute 11 is matched with the translation pair 10.
The horizontal plate 13 is connected with the reinforcement cage 14 through a rotating rod b7, the rotating rod b7 is connected with the horizontal plate 13 through a translation pair 10, and the rotating rod b7 is connected with the reinforcement cage 14 through a rotation pair b 9.
The gravel stratum dry-excavation clay retaining wall pore-forming bored concrete pile steel reinforcement cage hoisting adjustment construction process that utilizes above-mentioned device to advance, dig soon the rig that drills along set drilling position every drilling depth of about 1m, backfill 1m clay, the rig is exerted pressure and is reversed, through pressure and the interior soil body pore water of drilling combine clay and the soil body around the pore wall, closely knit, form the mud skin, until design hole depth with this circulation, bore to exerting pressure backward drilling 1min again after the design elevation, ensure that the hole bottom soil body is closely knit, form the clay retaining wall.
And forming collapsed stones in the filling part of the clay retaining wall and an unbeared pile body 16, collapsing stones 17 in the hole wall part, backfilling dry clay 18, and reversely rotating after a rotary drilling bit is lowered, and extruding to form the clay retaining wall 15, wherein undisturbed soil 19 is a plurality of gravels.
The steel wire rope 12 is tied in the circumferential direction of the reinforcement cage 14, and the revolute pair b9 is connected to the middle position of the reinforcement cage 14; keeping the reinforcement cage 14 horizontal; hoisting the reinforcement cage 14 by using a crane, wherein the reinforcement cage 14 is over against the middle position of the rotary drilling hole; loosening the steel wire rope 12, and enabling the steel reinforcement cage 14 to enter a rotary drilling hole under the self gravity; a certain gap is kept between the clay protecting wall 15 and the reinforcement cage 14; when the vertical position of steel reinforcement cage 14 need carry out downward adjustment, start driving motor 1, driving motor 1 drives the screw rod 4 rotatory, and screw rod 4 drives sliding plate 5 along the vertical rebound of vertical guide rail 3, and the contained angle grow between dwang a6 and the dwang b7, steel reinforcement cage 14 is transferred, adjusts.
When the vertical position of steel reinforcement cage 14 need upwards adjust, the reversal of driving motor 1, driving motor 1 drives screw rod 4 antiport, and screw rod 4 drives sliding plate 5 along the vertical downstream of vertical guide rail 3, and the contained angle between dwang a6 and the dwang b7 diminishes, and steel reinforcement cage 14 is risen, adjusts.
Compared with the prior art, the invention has the following beneficial effects.
1. Driving motor distributes in the circumference of mounting plate, driving motor's output shaft and vertical guide rail be connected, dwang a, dwang b between and with the steel reinforcement cage between form rigid connection, guarantee the steel reinforcement cage at the steady stability of the process of falling, prevent to appear rocking.
2. The driving motor drives the screw to rotate and adjust the position of the steel reinforcement cage, the stability of the whole adjusting process is good, and the vertical position of the steel reinforcement cage is adjusted more conveniently.
3. The construction process integrates the advantages of dry-digging pore-forming and mud dado pore-forming, not only improves the pore-forming speed, but also reduces the construction cost, and the technology can be expected to be widely applied.
Drawings
Fig. 1 is a structural diagram of a gravel stratum dry-dug clay breast wall pore-forming bored concrete pile reinforcement cage hoisting adjustment construction device.
Fig. 2 is a layout diagram of the position of the chute.
Fig. 3 is a schematic diagram of the construction process.
In the figure, 1, a driving motor, 2, an installation bottom plate, 3, a vertical guide rail, 4, a screw rod, 5, a sliding plate, 6, a rotating rod a, 7, a rotating rod b, 8, a rotating pair a, 9, a rotating pair b, 10, a translation pair, 11, a sliding chute, 12, a steel wire rope, 13, a horizontal plate, 14, a reinforcement cage, 15, a clay retaining wall, 16, a pile body without the retaining wall, 17, dry clay, 18, a rotary drilling bit, 19 and undisturbed soil.
Detailed Description
As shown in fig. 1-3, the device for adjusting and constructing the hoisting of the steel reinforcement cage of the bored concrete pile by dry-excavating clay retaining wall in the gravel stratum comprises a driving motor 1, an installation bottom plate 2, a vertical guide rail 3, a screw rod 4, a sliding plate 5, a rotating rod a6, a rotating rod b7, a rotating pair a8, a rotating pair b9, a translation pair 10, a chute 11, a steel wire rope 12 and a horizontal plate 13; the mounting base plate 2 is fixed on a crane frame; one end of a steel wire rope 12 is tied at the circumferential position of the steel reinforcement cage 14, and the other end of the steel wire rope is connected with a steel wire rope hoop; the driving motors 1 are distributed in the circumferential direction of the mounting base plate 2, and the middle of the mounting base plate 2 is provided with a vertical guide rail 3; the middle part of the sliding plate 5 is matched with the vertical guide rail 3, and the sliding plate 5 can vertically move along the vertical guide rail 3; an output shaft of the driving motor 1 is connected with a screw rod 4, the screw rod 4 is installed in the circumferential direction of a sliding plate 5, a screw hole is formed in the circumferential direction of the sliding plate 5, and the sliding plate 5 is in threaded fit with the screw rod 4;
the horizontal plate 13 is connected with the sliding plate 5 through a rotating rod a6, the rotating rod a6 is connected with the sliding plate 5 through a revolute pair a8, and the rotating rod a6 is connected with the horizontal plate 13 through a translation pair 10; a chute 11 is arranged on the horizontal plate 13, and the chute 11 is matched with the translation pair 10.
The horizontal plate 13 is connected with the reinforcement cage 14 through a rotating rod b7, the rotating rod b7 is connected with the horizontal plate 13 through a translation pair 10, and the rotating rod b7 is connected with the reinforcement cage 14 through a rotation pair b 9.
And forming collapsed stones in the filling part of the clay retaining wall and an unbeared pile body 16, collapsing stones 17 in the hole wall part, backfilling dry clay 18, and reversely rotating after a rotary drilling bit is lowered, and extruding to form the clay retaining wall 15, wherein undisturbed soil 19 is a plurality of gravels.
The steel wire rope 12 is tied in the circumferential direction of the reinforcement cage 14, and the revolute pair b9 is connected to the middle position of the reinforcement cage 14; keeping the reinforcement cage 14 horizontal; hoisting the reinforcement cage 14 by using a crane, wherein the reinforcement cage 14 is over against the middle position of the rotary drilling hole; loosening the steel wire rope 12, and enabling the steel reinforcement cage 14 to enter a rotary drilling hole under the self gravity; a certain gap is kept between the clay protecting wall 15 and the reinforcement cage 14; when the vertical position of steel reinforcement cage 14 need carry out downward adjustment, start driving motor 1, driving motor 1 drives the screw rod 4 rotatory, and screw rod 4 drives sliding plate 5 along the vertical rebound of vertical guide rail 3, and the contained angle grow between dwang a6 and the dwang b7, steel reinforcement cage 14 is transferred, adjusts.
When the vertical position of steel reinforcement cage 14 need upwards adjust, the reversal of driving motor 1, driving motor 1 drives screw rod 4 antiport, and screw rod 4 drives sliding plate 5 along the vertical downstream of vertical guide rail 3, and the contained angle between dwang a6 and the dwang b7 diminishes, and steel reinforcement cage 14 is risen, adjusts.
The clay retaining wall is 3-5cm thick, part of collapsed stones 16 and pile bodies of the parts without retaining the wall are filled, the stones 17 at the hole wall part collapse, the clay 18 is backfilled, a rotary drilling bit is put down and then is rotated reversely, and extrusion is carried out to form the clay retaining wall 15, and gravel among undisturbed soil 19 is increased.
Claims (3)
1. Gravel stratum dry excavation clay dado pore-forming bored concrete pile steel reinforcement cage hoist and mount adjustment construction equipment, its characterized in that: the device comprises a driving motor (1), an installation bottom plate (2), a vertical guide rail (3), a screw (4), a sliding plate (5), a rotating rod a (6), a rotating rod b (7), a rotating pair a (8), a rotating pair b (9), a translation pair (10), a sliding chute (11), a steel wire rope (12) and a horizontal plate (13); the mounting bottom plate (2) is fixed on the crane frame; one end of the steel wire rope (12) is tied at the circumferential position of the steel reinforcement cage (14), and the other end of the steel wire rope is connected with the steel wire rope hoop; the driving motors (1) are distributed in the circumferential direction of the mounting base plate (2), and a vertical guide rail (3) is arranged in the middle of the mounting base plate (2); the middle part of the sliding plate (5) is matched with the vertical guide rail (3), and the sliding plate (5) can vertically move along the vertical guide rail (3); an output shaft of the driving motor (1) is connected with the screw rod (4), the screw rod (4) is installed in the circumferential direction of the sliding plate (5), screw holes are formed in the circumferential direction of the sliding plate (5), and the sliding plate (5) is in threaded fit with the screw rod (4);
the horizontal plate (13) is connected with the sliding plate (5) through a rotating rod a (6), the rotating rod a (6) is connected with the sliding plate (5) through a rotating pair a (8), and the rotating rod a (6) is connected with the horizontal plate (13) through a translation pair (10); a sliding chute (11) is arranged on the horizontal plate (13), and the sliding chute (11) is matched with the translation pair (10);
the horizontal plate (13) is connected with the reinforcement cage (14) through a rotating rod b (7), the rotating rod b (7) is connected with the horizontal plate (13) through a translation pair (10), and the rotating rod b (7) is connected with the reinforcement cage (14) through a rotation pair b (9).
2. The gravel stratum dry-excavation clay dado pore-forming bored concrete pile steel reinforcement cage hoisting adjustment construction device of claim 1, characterized in that: the steel wire rope (12) is tied in the circumferential direction of the reinforcement cage (14), and the revolute pair b (9) is connected to the middle position of the reinforcement cage (14); keeping the reinforcement cage (14) horizontal; hoisting the reinforcement cage (14) by using a crane, wherein the reinforcement cage (14) is over against the middle position of the rotary drilling hole; loosening the steel wire rope (12), and enabling the steel reinforcement cage (14) to enter a rotary drilling hole under the self gravity; a certain gap is kept between the clay retaining wall (15) and the reinforcement cage (14); when the vertical position of steel reinforcement cage (14) need carry out downward adjustment, start driving motor (1), driving motor (1) drives screw rod (4) rotatory, and screw rod (4) drive sliding plate (5) along the vertical rebound of vertical guide rail (3), the contained angle grow between dwang a (6) and dwang b (7), and steel reinforcement cage (14) are transferred, adjust.
3. The gravel stratum dry-excavation clay dado pore-forming bored concrete pile steel reinforcement cage hoisting adjustment construction device of claim 1, characterized in that: when the vertical position of steel reinforcement cage (14) need upwards adjust, driving motor (1) reversal, driving motor (1) drive screw rod (4) antiport, and screw rod (4) drive sliding plate (5) along the vertical downstream of vertical guide rail (3), and the contained angle between dwang a (6) and dwang b (7) diminishes, and steel reinforcement cage (14) are risen, adjust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810193716.6A CN108468334B (en) | 2018-03-09 | 2018-03-09 | Gravel stratum dry-excavation clay dado pore-forming bored concrete pile construction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810193716.6A CN108468334B (en) | 2018-03-09 | 2018-03-09 | Gravel stratum dry-excavation clay dado pore-forming bored concrete pile construction device |
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| Publication Number | Publication Date |
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| CN108468334A CN108468334A (en) | 2018-08-31 |
| CN108468334B true CN108468334B (en) | 2020-07-10 |
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| CN201810193716.6A Active CN108468334B (en) | 2018-03-09 | 2018-03-09 | Gravel stratum dry-excavation clay dado pore-forming bored concrete pile construction device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904984B (en) * | 2019-11-27 | 2024-02-06 | 河南理工大学 | Gravel filling device in reaming space and filling method using device |
| CN115354673B (en) * | 2022-08-19 | 2023-09-05 | 四川省公路规划勘察设计研究院有限公司 | Anti-slide pile pore-forming method for red-layer soft rock area and hoisting type artificial auxiliary device |
| CN117328797B (en) * | 2023-12-01 | 2024-02-09 | 山西八建集团有限公司 | Pile foundation collapse prevention perforating device for pile foundation construction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733452A1 (en) * | 1997-08-02 | 1999-03-11 | Zueblin Ag | Support-adjusting mechanism in borehole with bored piles |
| CN103266599A (en) * | 2013-05-13 | 2013-08-28 | 汇通路桥建设集团有限公司 | Construction method of rotating drilling dry-drilled piles of sand soil interlayer foundation |
| CN206328039U (en) * | 2016-12-27 | 2017-07-14 | 中交第一公路工程局有限公司 | Rotary drilling rig dry drilling bar-mat reinforcement lifts fixing device |
-
2018
- 2018-03-09 CN CN201810193716.6A patent/CN108468334B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19733452A1 (en) * | 1997-08-02 | 1999-03-11 | Zueblin Ag | Support-adjusting mechanism in borehole with bored piles |
| CN103266599A (en) * | 2013-05-13 | 2013-08-28 | 汇通路桥建设集团有限公司 | Construction method of rotating drilling dry-drilled piles of sand soil interlayer foundation |
| CN206328039U (en) * | 2016-12-27 | 2017-07-14 | 中交第一公路工程局有限公司 | Rotary drilling rig dry drilling bar-mat reinforcement lifts fixing device |
Non-Patent Citations (1)
| Title |
|---|
| 可调式刚性吊筋器在灌注桩浮笼控制中的应用;林礼进;《山西建筑》;20131031;第39卷(第28期);第67-68页 * |
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Address after: 100070, B901, room 916, Spark Road 10, Fengtai District Science City, Beijing Applicant after: BRIDGE & TUNNEL ENGINEERING CO., LTD. OF CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. Applicant after: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Address before: 100070, B901, room 916, Spark Road 10, Fengtai District Science City, Beijing Applicant before: BRIDGE & TUNNEL ENGINEERING CO., LTD. OF CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. Applicant before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |
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Address after: 100070 B901, 916, spark fire road, Science City, Fengtai District, Beijing (Park), 10 Patentee after: CCCC Central South Engineering Bureau Co.,Ltd. Patentee after: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Address before: 100070 B901, 916, spark fire road, Science City, Fengtai District, Beijing (Park), 10 Patentee before: BRIDGE & TUNNEL ENGINEERING CO., LTD. OF CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. Patentee before: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. |