CN109056534B - Movable cast-in-situ bored pile construction platform and method - Google Patents
Movable cast-in-situ bored pile construction platform and method Download PDFInfo
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- CN109056534B CN109056534B CN201810797024.2A CN201810797024A CN109056534B CN 109056534 B CN109056534 B CN 109056534B CN 201810797024 A CN201810797024 A CN 201810797024A CN 109056534 B CN109056534 B CN 109056534B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a mobile cast-in-situ bored pile construction platform and a method, wherein the mobile cast-in-situ bored pile construction platform comprises two main trestles, two support trestles and a steel casing, wherein the main trestles are arranged in a construction area and are respectively symmetrically arranged at two ends of the construction area, the main trestle is arranged at one side of the construction area, the mobile cast-in-situ bored pile construction platform further comprises a plurality of steel pipe piles, a workbench and a dragging device, the piles are arranged between the two support trestles, the top of each steel pipe pile is connected with a distribution beam through a connecting piece, two ends of each distribution beam are respectively opposite to the two support trestles, the workbench is arranged on the distribution beam in a sliding mode, one end of the workbench is close to the main trestle, and the dragging device is arranged on the support trestles and is used for driving the workbench to move. Compared with the prior art, the invention can move the working platform along the length direction of the distribution beam through the dragging device, thereby moving the working platform to different positions for drilling pile construction, and achieving the purposes of simplifying the working procedures and reducing the cost.
Description
Technical Field
The invention relates to the field of bridge construction, in particular to a mobile cast-in-situ bored pile construction platform and a mobile cast-in-situ bored pile construction method.
Background
With the development of bridge technology, the arrangement form of the main pier drilling cast-in-place pile of the super-large bridge spanning rivers, lakes and seas is diversified. When the main pier bored concrete piles are arranged in a quincunx shape, the drilling platform operation surface needs to be arranged on the operation surface of the drilling platform according to the pile positions to reserve drilling hole positions, so that the drilling platform operation surface is difficult to arrange, even after partial bored concrete piles are formed into holes, the arrangement of the operation surface is readjusted according to the formed hole positions, and the construction of the rest bored concrete piles can be completed. Based on the reasons, for the bored concrete piles arranged in the quincunx shape, the operation surface of the drilling platform of the bored concrete piles usually consumes more materials, the working procedures are increased in the construction process, the workload is high, and the construction period is long.
At present, the rotary drilling rig is adopted for drilling in the industry, the rotary drilling rig has the advantage of high hole forming efficiency, but the use cost is high, and on the premise of ensuring the construction period, 1 set of rotary drilling rig is additionally used for carrying out the construction of the cast-in-situ pile, so that the cost is saved. Aiming at the bored pile arranged in a quincunx shape, the construction scheme of the existing drilling platform in the field has the following problems:
(1) the structural design of the drilling platform is difficult;
(2) the investment is large, the working surface of the drilling platform is covered greatly, and the investment of materials is large;
(3) the process is tedious, and in order to adapt to the construction of the bored piles arranged in a quincunx shape, partial holes are formed on the working surface of the existing drilling platform, then the arrangement of the working surface of the drilling platform is readjusted, and then the rest construction of the bored piles is carried out.
In view of this, there is a need to improve the existing cast-in-situ bored pile construction method, reduce the material consumption, simplify the process, and further reduce the cost and improve the construction efficiency.
Disclosure of Invention
The invention aims to solve the technical problems of large material consumption, complicated working procedures and low construction efficiency in the conventional cast-in-situ bored pile construction mode.
In order to solve the above technical problems, the technical scheme adopted by the present invention is to provide a mobile cast-in-situ bored pile construction platform, which includes two main trestles, two support trestles and a steel casing, wherein the two support trestles are symmetrically arranged at two ends of a construction area and are opposite to each other, the main trestle is arranged at one side of the construction area, and the mobile cast-in-situ bored pile construction platform further includes:
the steel pipe piles are arranged between the two trestles, the tops of the steel pipe piles are connected with distribution beams through connecting pieces, and two ends of each distribution beam are respectively opposite to the two trestles;
the workbench is arranged on the distribution beam in a sliding mode, and one end of the workbench is close to the main trestle;
and the dragging device is arranged on the trestle and is used for driving the workbench to move.
In the above solution, the pulling device comprises an electric block.
In the above scheme, the workbench comprises a bailey frame and a panel, the panel is arranged on the bailey frame, and the bailey frame is formed by assembling bailey beams.
In the scheme, the worktable comprises a worktable, and the worktable comprises a worktable.
In the scheme, the top surface of the steel casing is lower than the bottom surface of the workbench.
In the above scheme, the workbench is arranged on the distribution beam through a sliding assembly.
The invention also provides a construction method of the movable cast-in-situ bored pile, which comprises the following steps:
s1, inserting steel pipe piles into a construction area by using the finished main trestle and the finished branch trestles by using a crawler crane, installing a steel pipe pile-to-pile connection system, and installing a distribution beam at the top of each steel pipe pile;
s2, inserting and punching a steel pile casing in the construction area;
s3, assembling the Bailey beams into a Bailey frame, installing a panel on the Bailey frame to form a workbench, hoisting the workbench to the construction position of the cast-in-situ bored pile, and temporarily fixing the workbench and the distribution beam by adopting U-shaped bolts;
s4, driving the rotary drilling rig to a workbench through the main trestle, and performing construction of the first group of cast-in-situ bored piles;
s5, after the first group of bored cast-in-place piles are constructed, enabling the rotary drilling rig to return to the main trestle, removing the temporary fixation between the workbench and the distribution beam, and moving the workbench to the second group of bored cast-in-place piles through the dragging device;
s6, driving the rotary drilling rig to the workbench again, and starting the construction of the second group of cast-in-situ bored piles;
and S7, repeating the steps S5 and S6, and finishing the construction of all the remaining cast-in-situ bored piles.
Compared with the prior art, the invention fully utilizes the structure of the drilling platform, the dragging device is arranged above the distribution beam of the drilling platform, and the workbench can move along the length direction of the distribution beam through the dragging device. After the drilling of the cast-in-situ bored pile in the area of the workbench is completed, the workbench is moved to the next hole site by adopting the dragging device, and the cast-in-situ bored pile at the next hole site is constructed until the construction of all the cast-in-situ bored piles is completed, so that the purposes of simplifying the working procedures and reducing the cost are achieved.
Drawings
FIG. 1 is a floor plan of the present invention;
FIG. 2 is a plan view of the present invention with the work bench positioned at the location of the first set of bored concrete piles;
FIG. 3 is a plan view of the present invention with the work bench positioned at the second set of bored pile locations;
FIG. 4 is a cross-sectional view taken along line I-I of FIG. 2;
FIG. 5 is a schematic view of the locking of the work table to the distributor beam in accordance with the present invention;
fig. 6 is a sectional view taken along line ii-ii of fig. 5.
Detailed Description
The invention provides a movable cast-in-situ bored pile construction platform and a method, aiming at the problems of difficult structural design of a drilling platform, large coverage of a working surface of the drilling platform, more input materials and complicated construction procedures in the prior art. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 6, the invention provides a mobile cast-in-situ bored pile construction platform, which comprises a main trestle 1, two branch trestles 2 and a steel casing 3, wherein the main trestle, the branch trestles 2 and the steel casing 3 are arranged in a construction area, the two branch trestles are respectively and symmetrically arranged at two ends of the construction area and are opposite to each other, and the steel casing 3 is arranged in the construction area.
The main trestle 1 is arranged on one side of the construction area, and the main trestle 1 and the two trestles 2 form a U shape and semi-surround the construction area. The invention also comprises a steel pipe pile 4 working platform 6 and a dragging device 7. The steel-pipe pile 4 sets up to the multirow, and every row sets up to a plurality ofly, and sets up between two trestles 2, and the top of steel-pipe pile 4 is connected with distribution roof beam 5 through the connecting piece, and distribution roof beam 5's both ends are just right with two trestles 2 respectively. The workbench 6 is arranged on the distribution beam 5 in a sliding mode, the workbench 6 can move back and forth between the two trestles 2 along the distribution beam 5, and one end of the workbench 6 is close to the main trestle 1. The dragging device 7 is arranged on the trestle 2 and connected with the workbench 6 for driving the workbench 6 to move.
The working principle of the invention is as follows:
(1) the working table 6 is driven to move in the area between the two trestles 2 through the dragging device 7 and moves to the position where the cast-in-situ bored pile is constructed, so that construction of different positions is realized;
(2) the rotary drilling rig enters the workbench 6 through the main trestle 1, and before the workbench 6 is moved each time, the rotary drilling rig needs to return to the main trestle 1, so that the workbench 6 is moved independently, and after the workbench 6 is in place, the rotary drilling rig returns to the workbench 6, so that the workbench 6 can be driven to move through a simple power device, the operation is simple and convenient, the operation is easy, and the cost is reduced.
Preferably, the workbench 6 comprises a bailey frame and a panel 62, wherein the panel 62 is arranged on the bailey frame, and the bailey frame is formed by assembling bailey beams 61. In order to ensure that the workbench 6 is reliably fixed after being in place and prevent the workbench 6 from accidentally sliding, the invention further comprises a locking piece for fixing the workbench 6, wherein the locking piece comprises a U-shaped bolt 63, and the bailey bracket and the distribution beam 5 are locked and fixed through the U-shaped bolt 63, so that the fixing is simple and reliable. In order to ensure that the worktable 6 moves smoothly, the top surface of the steel casing 3 is lower than the bottom surface of the worktable 6.
Preferably, the traction means is an electric device comprising an electric hoist. The table 6 is arranged on the distribution beam 5 by means of a sliding assembly comprising a guide rail slider assembly.
The invention also provides a construction method of the movable cast-in-situ bored pile, which comprises the following steps:
s1, inserting steel pipe piles into a construction area by using the finished main trestle and the finished branch trestles by using a crawler crane, installing a steel pipe pile-to-pile connection system, and installing a distribution beam at the top of each steel pipe pile;
s2, inserting and punching a steel pile casing in the construction area;
s3, assembling the Bailey beams into a Bailey frame, installing a panel on the Bailey frame to form a workbench, hoisting the workbench to the construction position of the cast-in-situ bored pile, and temporarily fixing the workbench and the distribution beam by adopting U-shaped bolts;
s4, driving the rotary drilling rig to a workbench through the main trestle, and performing construction of the first group of cast-in-situ bored piles;
s5, after the first group of bored cast-in-place piles are constructed, enabling the rotary drilling rig to return to the main trestle, removing the temporary fixation between the workbench and the distribution beam, and moving the workbench to the second group of bored cast-in-place piles through the dragging device;
s6, driving the rotary drilling rig to the workbench again, and starting the construction of the second group of cast-in-situ bored piles;
and S7, repeating the steps S5 and S6, and finishing the construction of all the remaining cast-in-situ bored piles.
Compared with the prior art, the invention fully utilizes the structure of the drilling platform, the dragging device is arranged above the distribution beam of the drilling platform, and the workbench can move along the length direction of the distribution beam through the dragging device. After the drilling of the cast-in-situ bored pile in the area of the workbench is completed, the workbench is moved to the next hole site by adopting the dragging device, and the cast-in-situ bored pile at the next hole site is constructed until the construction of all the cast-in-situ bored piles is completed, so that the purposes of simplifying the working procedures and reducing the cost are achieved.
The present invention is not limited to the above-mentioned preferred embodiments, and any structural changes made under the teaching of the present invention shall fall within the scope of the present invention, which is similar or similar to the technical solutions of the present invention.
Claims (6)
1. The utility model provides a portable bored concrete pile construction platform, protects a section of thick bamboo including setting up main landing stage, a landing stage and the steel in construction area, and a landing stage is two, and the symmetry sets up the both ends in construction area respectively to just right mutually, main landing stage setting is in one side of construction area, its characterized in that still includes:
the steel pipe piles are arranged between the two trestles, the tops of the steel pipe piles are connected with distribution beams through connecting pieces, and two ends of each distribution beam are respectively opposite to the two trestles;
the workbench is arranged on the distribution beam in a sliding mode, and one end of the workbench is close to the main trestle;
the dragging device is arranged on the trestle and is used for driving the workbench to move;
and the locking piece is used for fixing the workbench and comprises a U-shaped bolt, and the workbench and the distribution beam are temporarily fixed by the U-shaped bolt.
2. The mobile bored pile construction platform of claim 1, wherein the towing means comprises an electric hoist.
3. The mobile cast-in-situ bored pile construction platform of claim 1, wherein the workbench comprises a bailey frame and a panel, the panel is arranged on the bailey frame, and the bailey frame is formed by assembling bailey beams.
4. The mobile cast-in-situ bored pile construction platform of claim 1, wherein a top surface of the steel casing is lower than a bottom surface of the work bench.
5. The mobile cast-in-situ bored pile construction platform of claim 1, wherein the work bench is disposed on the distribution beam by a slide assembly.
6. A mobile cast-in-situ bored pile construction method, which is implemented by using the mobile cast-in-situ bored pile construction platform of claim 3, comprising the steps of:
s1, inserting steel pipe piles into a construction area by using the finished main trestle and the finished branch trestles by using a crawler crane, installing a steel pipe pile-to-pile connection system, and installing a distribution beam at the top of each steel pipe pile;
s2, inserting and punching a steel pile casing in the construction area;
s3, assembling the Bailey beams into a Bailey frame, installing a panel on the Bailey frame to form a workbench, hoisting the workbench to the construction position of the cast-in-situ bored pile, and temporarily fixing the workbench and the distribution beam by adopting U-shaped bolts;
s4, driving the rotary drilling rig to a workbench through the main trestle, and performing construction of the first group of cast-in-situ bored piles;
s5, after the first group of bored cast-in-place piles are constructed, enabling the rotary drilling rig to return to the main trestle, removing the temporary fixation between the workbench and the distribution beam, and moving the workbench to the second group of bored cast-in-place piles through the dragging device;
s6, driving the rotary drilling rig to the workbench again, and starting the construction of the second group of cast-in-situ bored piles;
and S7, repeating the steps S5 and S6, and finishing the construction of all the remaining cast-in-situ bored piles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810797024.2A CN109056534B (en) | 2018-07-19 | 2018-07-19 | Movable cast-in-situ bored pile construction platform and method |
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| CN201810797024.2A CN109056534B (en) | 2018-07-19 | 2018-07-19 | Movable cast-in-situ bored pile construction platform and method |
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| CN109056534A CN109056534A (en) | 2018-12-21 |
| CN109056534B true CN109056534B (en) | 2021-07-20 |
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| CN111851562A (en) * | 2020-07-22 | 2020-10-30 | 重庆交通建设(集团)有限责任公司 | Movable cast-in-situ bored pile construction platform and method |
| CN114908673B (en) * | 2022-05-16 | 2023-10-20 | 中铁四局集团第一工程有限公司 | Deep water foundation trestle and drilling platform construction method |
| CN115198711A (en) * | 2022-07-06 | 2022-10-18 | 中国建筑第八工程局有限公司 | Construction platform structure and construction method of concrete cast-in-place pile for Yangjiang river |
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| CN104594352B (en) * | 2015-01-14 | 2016-12-07 | 中铁大桥局集团有限公司 | A kind of robust structure and drilling platform construction method based on this robust structure |
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| CN106049281A (en) * | 2016-06-01 | 2016-10-26 | 中国铁建大桥工程局集团有限公司 | Deep-water construction method of bridge at water pebble soil and argillaceous sandstone areas and auxiliary working platform |
| CN107034884A (en) * | 2017-05-27 | 2017-08-11 | 中交二航局第四工程有限公司 | The steel pile casting constructing device and method of the big oblique rock surface of shallow overburden profundal zone flow velocity |
| CN107700366B (en) * | 2017-11-20 | 2019-08-27 | 中铁二十局集团第一工程有限公司 | Deep water high-block bridge degree the bridge construction naked rock river bed trestle of hard stone and construction method |
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| CN107893381A (en) * | 2017-11-30 | 2018-04-10 | 中铁大桥局集团第二工程有限公司 | A kind of double width cantilever casting beam Hanging Basket bed die system longitudinal and lateral movement wheel platform |
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