CN114016508A - Construction platform for cast-in-place pile hard rock construction and construction method thereof - Google Patents
Construction platform for cast-in-place pile hard rock construction and construction method thereof Download PDFInfo
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- CN114016508A CN114016508A CN202111329987.8A CN202111329987A CN114016508A CN 114016508 A CN114016508 A CN 114016508A CN 202111329987 A CN202111329987 A CN 202111329987A CN 114016508 A CN114016508 A CN 114016508A
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- construction
- jaw chuck
- cast
- hard rock
- construction platform
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B11/00—Other drilling tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Abstract
The invention discloses a construction platform for cast-in-place pile hard rock construction and a construction method thereof, wherein the construction platform comprises a multi-jaw chuck and a remote control system, a plurality of connecting seats capable of radially stretching along the multi-jaw chuck are uniformly arranged on the periphery of the multi-jaw chuck, a protective wing is fixedly arranged on the lower side surface of each connecting seat, a connecting plate is fixedly arranged on the upper side surface of each connecting seat, an electric drill group is fixedly arranged on the upper side surface of each connecting plate, the drilling working end of each electric drill group is positioned between two adjacent protective wings, and each electric drill group and the multi-jaw chuck are respectively connected with the remote control system. The construction platform can be simply installed on a common hanger used in a construction site, and the construction depth can be freely adjusted under the condition that the length of a steel wire rope of the hanger allows; the construction method can be used for automatically positioning in the original well drilling by utilizing the construction platform, and a plurality of rotary small drills can be used for synchronous or independent drilling, so that the working efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a construction platform for cast-in-place pile hard rock construction and a construction method thereof.
Background
At present, a bored pile hard rock small drill array coring drilling construction method is beam wall type telescopic, vertically sinks to a processing position, depends on sensing positioning, sequentially carries out array type processing generally for three times or more, and then carries out comprehensive rock breaking drilling and coring by using a large drill, and has the main problems that the length of an arm type device is greatly limited, the arm length determines the processing depth, the bored pile is difficult to be suitable for bored piles with the depth of more than 4m, and the drilling depth is limited; secondly, the requirement that the cast-in-place pile must be perpendicular to the ground requires that the ground part of the drilling device is horizontally placed or a sensor is used for leveling in operation construction, and high requirements or complex auxiliary technologies are required; third, it generally requires three or more small drills to drill in to achieve the strength of the array to break the hard rock, which is time consuming and inefficient.
In view of this, how to research a construction platform for cast-in-place pile hard rock construction and a construction method thereof, which have adjustable construction depth, high efficiency and can be autonomously positioned, is a technical problem to be solved by those in the technical field.
Disclosure of Invention
The invention aims to provide a construction platform for cast-in-place pile hard rock construction and a construction method thereof.
In order to solve the technical problem, the invention provides a construction platform for cast-in-place pile hard rock construction, which comprises a multi-jaw chuck and a remote control system, wherein a plurality of connecting seats capable of radially stretching along the multi-jaw chuck are uniformly arranged around the multi-jaw chuck, a protective wing is fixedly arranged on the lower side surface of each connecting seat, a connecting plate is fixedly arranged on the upper side surface of each connecting seat, an electric drill group is fixedly arranged on the upper side surface of each connecting plate, the drilling working end of each electric drill group is positioned between every two adjacent protective wings, and each electric drill group and the multi-jaw chuck are respectively connected with the remote control system.
Preferably, the end part of the protective wing, which is far away from the multi-jaw chuck, is an arc-shaped end, and an arc-shaped plate perpendicular to the arc-shaped end is fixedly arranged at the arc-shaped end.
Preferably, all be equipped with first screw hole on multi-jaw chuck and the flap, be equipped with respectively on the connecting seat with first screw hole assorted second screw hole, all through screw rod and assorted first screw hole and second screw hole fixed connection between connecting seat and the multi-jaw chuck and between connecting seat and the flap.
Preferably, the connecting plate is welded and fixed with the connecting seat.
Preferably, the wings are welded and fixed with the arc-shaped plate.
Preferably, the multi-jaw chuck is a three-jaw chuck, and the three protective wings are uniformly distributed around the three-jaw chuck.
Preferably, the electric drill group comprises a rotary drilling small drill and a lifting mechanism, the lifting mechanism comprises a vertical rod fixedly connected with the connecting plate and a transverse rod fixedly connected with the rotary drilling small drill and perpendicular to the vertical rod, an external thread is arranged on the periphery of the vertical rod, an internal thread matched with the external thread is arranged on the transverse rod, the vertical rod penetrates through the internal thread and is in threaded connection with the transverse rod, and the rotary drilling small drill is a drilling working end of the electric drill group and is located between two adjacent protective wings.
The invention also provides a construction method of the cast-in-place pile hard rock, which is used for the cast-in-place pile hard rock construction based on the construction platform and at least comprises the following steps:
s1, fixedly connecting a multi-jaw chuck in the construction platform with a steel wire rope of the truck-mounted crane through a conical gear with a plane thread;
s2, placing the construction platform at the position to be constructed of the construction hole of the cast-in-place pile by using the self weight of the construction platform;
s3, controlling the connecting base to extend outwards along the radial direction of the multi-jaw chuck through the remote control system, and further driving a plurality of protective wings around the multi-jaw chuck to extend outwards simultaneously, so that the plurality of protective wings are compressed with the hole wall of the construction hole and are supported and fixed at the construction position through a tension force;
s4, controlling independent or colleague drilling work of a plurality of electric drill groups through a remote control system to drill a pre-split hole at a construction position;
and S5, taking the construction platform out of the construction hole by using the truck-mounted crane, and drilling rock breaking at the construction position by using a main drill bit for hard rock construction, thereby completing the construction of the hard rock of the cast-in-place pile.
Preferably, when the electric drill set in step S4 drills in place or a drill jamming phenomenon occurs during the drilling process, the construction platform may be taken out by the truck-mounted crane for manual intervention.
Preferably, the construction platform is hoisted by adopting a double-wire steel wire rope.
Compared with the prior art, the construction platform for the cast-in-place pile hard rock construction and the construction method thereof are provided. The construction platform can be simply installed on a common lifting appliance in a construction site, the construction depth can be freely adjusted under the condition that the length of a steel wire rope of the lifting appliance allows, meanwhile, the construction method can be used for automatically and radially positioning the construction platform in the original well drilling process, a plurality of rotary small drills can be used for synchronously or independently drilling and drilling pre-split holes, and the working efficiency is greatly improved.
Drawings
Figure 1 is a partially exploded view of a construction platform for cast-in-place pile hard rock construction according to the present invention,
figure 2 is a perspective view of a construction platform for cast-in-place pile hard rock construction according to the present invention,
figure 3 is a top view of a construction platform wing of the present invention in a retracted state for use in cast-in-place pile hard rock construction,
figure 4 is a bottom view of figure 3,
figure 5 is a schematic structural view of a construction platform for cast-in-place pile hard rock construction with the wings extended,
fig. 6 is a flow chart of a construction method of a cast-in-place pile hard rock according to the invention.
In the figure: 1. the multi-jaw chuck comprises a multi-jaw chuck, 2 electric drill sets, 21 rotary drilling small drills, 22 lifting mechanisms, 221 vertical rods, 222 transverse rods, 3 protective wings, 4 connecting seats, 5 connecting plates and 6 arc plates.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1-5, a construction platform for cast-in-place pile hard rock construction and a construction method thereof include a multi-jaw chuck 1 and a remote control system, a plurality of connecting seats 4 capable of radially extending and retracting along the multi-jaw chuck 1 are uniformly arranged around the multi-jaw chuck 1, a protective wing 3 is fixedly arranged at the lower side of each connecting seat 4, a connecting plate 5 is fixedly arranged at the upper side of each connecting seat 4, an electric drill group 2 is fixedly arranged above the connecting plate 5, and the remote control system is respectively connected with the multi-jaw chuck 1 and the electric drill group 2.
In the invention, the connecting seat 4 is fixedly connected with the movable clamping jaws on the multi-jaw chuck 1, the multi-jaw chuck 1 is meshed with the conical gear with the plane threads on the back through the movable clamping jaws, when the conical gear is rotated by a hydraulic motor through remote oil supply outside a construction hole, the plane threads on the back of the conical gear are meshed with the movable clamping jaws on the multi-jaw chuck 1 to enable the movable clamping jaws to move towards the center or move reversely at the same time, and further, the connecting seat 4 fixedly connected with the movable clamping jaws radially contracts or expands along the multi-jaw chuck 1, namely, the protective wings 3 retract or extend out at the same time. Firstly, connecting a multi-jaw chuck 1 with a steel wire rope on a hanger, enabling the device to reach a construction depth position by utilizing the self weight of the steel wire rope and the device, and during work, sending out an extending instruction of a protective wing 3 through a remote control system, so that the protective wings 3 arranged around the multi-jaw chuck 1 can simultaneously extend to a certain position along a radial direction on a parallel plane relative to a construction hole bottom, and the protective wings 3 are tightly pressed with the construction hole wall and keep tensioning pressure, thereby ensuring the stability of the device at the construction hole bottom, simultaneously overcoming the reaction force generated by the electric drill set 2 due to propulsion, and then drilling work can be carried out by utilizing the electric drill set 2 to transfer out a pre-cracked hole; after the drilling work is finished, the remote control system sends a retraction instruction of the protective wings 3, the protective wings 3 are retracted to the initial positions along the radial direction, and at the moment, the device can be taken back to the ground by using the steel wire rope for subsequent work such as coring. The device can also control the working quantity of the electric drill group 2 according to the actual situation of drilling construction. Therefore, the device has the advantages of self-centering and ultra-deep operation, and solves the defects of overweight dead weight of the rotary excavating power head entering hard rock, low rotating speed, frequent replacement of a drill bit and difficult operation in the traditional construction.
As shown in fig. 1 and 2, the end of the protective wing 3 away from the multi-jaw chuck 1 is an arc end, and an arc plate 6 perpendicular to the arc end is fixed at the arc end. In this embodiment, through set up at the arc end with arc end vertically arc 6, be favorable to protecting connection structure, avoid boring into the in-process object that splashes harm part.
As shown in fig. 1-6, the multi-jaw chuck 1 and the wing 3 are both provided with first threaded holes, and the connecting seat 4 is provided with second threaded holes respectively matched with the first threaded holes. In this embodiment, the screw rods and the first and second threaded holes are used for threaded connection between the multi-jaw chuck 1 and the connecting seat 4 and between the protective wing 3 and the connecting seat 4, so that the connection reliability between the multi-jaw chuck 1 and the connecting seat can be ensured, and the daily disassembly and assembly of components can be facilitated.
As shown in fig. 1, 2, 3 and 5, the connecting plate 5 is welded and fixed to the connecting base 4, and the wing 3 is welded and fixed to the arc-shaped plate 6. The welding fixation is beneficial to the connection reliability between the two and the operation stability of the device.
As shown in fig. 1, 2, 3 and 5, the multi-jaw chuck 1 is a three-jaw chuck, and three wings 3 are uniformly distributed around the three-jaw chuck. In this embodiment, three wings 3 are provided in the device to allow simultaneous drilling, and in other embodiments, a different number than three wings 3 may be provided to allow simultaneous drilling.
As shown in fig. 1, the electric drill group 2 includes a rotary drilling small drill 21 and a lifting mechanism 22, the lifting mechanism 22 includes a vertical rod 221 fixedly connected to the connecting plate 5 and a horizontal rod 222 fixedly connected to the rotary drilling small drill 21 and perpendicular to the vertical rod 221, an external thread is disposed on the periphery of the vertical rod 221, an internal thread matched with the external thread is disposed on the horizontal rod 222, the vertical rod 221 passes through the internal thread and is in threaded connection with the horizontal rod 222, and the rotary drilling small drill 21 is a drilling working end of the electric drill group 2 and is located between two adjacent wings 3. In this embodiment, the vertical rod 221 is matched with the internal thread through the external thread, so that the drilling working end of the electric drill group 2 rotatably drills the small drill 21 up and down along the vertical rod 221, the working position of the rotatably drilling small drill 21 is finely adjusted, and the accuracy of the construction position is further ensured.
As shown in fig. 6, a method for constructing a cast-in-place pile hard rock is also provided, where the method is based on the above construction platform to perform cast-in-place pile hard rock construction, and includes at least the following steps:
s1, fixedly connecting the multi-jaw chuck 1 in the construction platform with a steel wire rope of the truck-mounted crane through a conical gear with a plane thread;
s2, placing the construction platform at the position to be constructed of the construction hole of the cast-in-place pile by using the self weight of the construction platform;
s3, controlling the connecting seat 4 to extend outwards along the radial direction of the multi-jaw chuck 1 through the remote control system, and further driving the plurality of protective wings 3 around the multi-jaw chuck 1 to extend outwards simultaneously, so that the plurality of protective wings 3 are pressed against the hole wall of the construction hole and supported and fixed at the position to be constructed through a tensioning force;
s4, controlling a plurality of electric drill sets 2 to independently or simultaneously drill through a remote control system so as to drill a pre-split hole at the position to be constructed; when the drilling phenomenon occurs or the drilling is in place in the drilling process, the construction platform can be taken out through the truck mounted crane for manual intervention;
and S5, taking the construction platform out of the construction hole by using the truck-mounted crane, and drilling the rock breaking position to be constructed by the main drill bit for hard rock construction, thereby completing the construction of the hard rock of the cast-in-place pile.
In this embodiment, the construction platform is hoisted by adopting a double-wire steel wire rope. The multi-jaw chuck 1 is meshed with the conical gear with the plane threads on the back through the movable jaws, when the conical gear is rotated by a hydraulic motor through remote oil supply outside a construction hole, the plane threads on the back of the conical gear and the movable jaws on the multi-jaw chuck 1 are meshed to enable the movable jaws to move towards the center or move reversely at the same time, and then the connecting seat 4 fixedly connected with the movable jaws radially contracts or expands along the multi-jaw chuck 1, namely the plurality of protective wings 3 retract or extend out simultaneously.
It should be noted that two wire ropes can form a plane, the plane formed can be used as a reference surface to enter a construction hole on a construction platform to perform angle adjustment, when the bottom of the construction hole is smooth, the plane of the bottom of the construction hole is guaranteed to be tangentially distributed with pre-cracked holes along the circumference, when the inclination angle of the bottom of the construction hole is larger, the angle of the construction platform adjusted each time can be slightly smaller, and then the number of the cutting pre-cracked holes of the hard rock can be increased, and then a main drill bit can be lowered to smoothly drill.
In the embodiment, the construction platform and the truck-mounted crane are assembled and placed at a position to be constructed in a construction hole, then the remote control system is used for controlling the plurality of protective wings 3 around the multi-jaw chuck 4 to simultaneously extend out of a certain position to be compressed with the construction hole wall and to be supported and fixed through tension force to realize radial positioning, then the plurality of electric drill sets 2 are controlled to simultaneously or independently drill so as to drill a pre-cracked hole at the position to be constructed, finally, the construction platform is taken out and the main drill bit is used for drilling rock breaking at the position to be constructed, and further the construction of the cast-in-place pile hard rock is completed. Therefore, the construction method can utilize the plurality of electric drill sets 2 carried by the construction platform to drill pre-cracked holes at the positions to be constructed in advance, and then drill the broken rocks through the main drill bit, so that the difficulty of the operation of the main drill bit entering hard rocks is effectively reduced, the frequency of replacing the drill bit is reduced, the working efficiency is improved, and the purposes of energy conservation and efficiency improvement are achieved.
The construction platform for the construction of the cast-in-place pile hard rock and the construction method thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a construction platform for bored concrete pile hard rock construction, a serial communication port, including multi-jaw chuck (1) and remote control system, evenly be equipped with a plurality of connecting seats (4) that can follow multi-jaw chuck (1) and radially stretch out and draw back all around of multi-jaw chuck (1), the downside of each connecting seat (4) is all fixed and is equipped with flap (3), the side of going up of each connecting seat (4) is all fixed and is equipped with connecting plate (5), the side of going up of each connecting plate (5) is all fixed and is equipped with electric drill group (2), the work end that creeps into of each electric drill group (2) all is located between two adjacent flaps (3), each electric drill group (2) and multi-jaw chuck (1) are equallyd divide and do not are connected with remote control system.
2. The construction platform for cast-in-place pile hard rock construction as claimed in claim 1, characterized in that the end of the wings (3) remote from the multi-jaw chuck (1) is an arc-shaped end, and the arc-shaped end is fixedly provided with an arc-shaped plate (6) perpendicular to the arc-shaped end.
3. The construction platform for bored concrete pile hard rock construction according to claim 2, wherein the multi-jaw chuck (1) and the wings (3) are provided with first threaded holes, the connecting base (4) is provided with second threaded holes respectively matched with the first threaded holes, and the connecting base (4) and the multi-jaw chuck (1) and the connecting base (4) and the wings (3) are fixedly connected with the first threaded holes and the second threaded holes through screws.
4. A construction platform for cast-in-place pile hard rock construction according to claim 1, characterized in that the connection plate (5) is welded and fixed with the connection base (4).
5. The construction platform for cast-in-place pile hard rock construction as claimed in claim 2, characterized in that the wings (3) are welded and fixed with the arc-shaped plates (6).
6. A construction platform for cast-in-place pile hard rock construction according to claim 5, characterized in that the multi-jaw chuck (1) is a three-jaw chuck and the wings (3) are provided in three and evenly distributed around the three-jaw chuck.
7. The construction platform for cast-in-place pile hard rock construction according to claim 6, wherein the electric drill group (2) comprises a rotary drilling small drill (21) and a lifting mechanism (22), the lifting mechanism (22) comprises a vertical rod (221) fixedly connected with the connecting plate (5) and a cross rod (222) fixedly connected with the rotary drilling small drill (21) and perpendicular to the vertical rod (221), an external thread is arranged on the periphery of the vertical rod (221), an internal thread matched with the external thread is arranged on the cross rod (222), the vertical rod (221) penetrates through the internal thread and is in threaded connection with the cross rod (222), and the rotary drilling small drill (21) is a drilling working end of the electric drill group (2) and is located between two adjacent protective wings (3).
8. A construction method of cast-in-place pile hard rock is characterized in that the method is used for the construction of the cast-in-place pile hard rock on the basis of the construction platform of any one of claims 1 to 7, and at least comprises the following steps:
s1, fixedly connecting a multi-jaw chuck (1) in the construction platform with a steel wire rope of the truck-mounted crane through a conical gear with a plane thread;
s2, placing the construction platform at the position to be constructed of the construction hole of the cast-in-place pile by using the self weight of the construction platform;
s3, controlling the connecting seat (4) to extend outwards along the radial direction of the multi-jaw chuck (1) through the remote control system, and further driving a plurality of protective wings (3) on the periphery of the multi-jaw chuck (1) to extend outwards at the same time, so that the protective wings (3) are pressed against the hole wall of the construction hole and supported and fixed at the construction position through tension force;
s4, controlling a plurality of electric drill sets (2) to independently or simultaneously drill through a remote control system so as to drill a pre-split hole at a construction position;
and S5, taking the construction platform out of the construction hole by using the truck-mounted crane, and drilling rock breaking at the construction position by using a main drill bit for hard rock construction, thereby completing the construction of the hard rock of the cast-in-place pile.
9. The method for constructing the cast-in-place pile hard rock according to claim 8, wherein when the electric drill group (2) in the step S4 drills in place or a drill jamming phenomenon occurs in the drilling process, the construction platform can be taken out by a truck crane for manual intervention.
10. A method for constructing a cast-in-place pile in hard rock according to claim 9, wherein the construction platform is hoisted by using a double-wire steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329987.8A CN114016508B (en) | 2021-11-10 | 2021-11-10 | Construction platform for cast-in-place pile hard rock construction and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111329987.8A CN114016508B (en) | 2021-11-10 | 2021-11-10 | Construction platform for cast-in-place pile hard rock construction and construction method thereof |
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| Publication Number | Publication Date |
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| CN114016508A true CN114016508A (en) | 2022-02-08 |
| CN114016508B CN114016508B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111329987.8A Active CN114016508B (en) | 2021-11-10 | 2021-11-10 | Construction platform for cast-in-place pile hard rock construction and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808725A (en) * | 2022-05-11 | 2022-07-29 | 浙江省二建建设集团有限公司 | Pile foundation construction platform for pier on water |
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| WO2013136113A1 (en) * | 2012-03-12 | 2013-09-19 | Flexidrill Limited | Hybrid drill bit |
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| JP2019124009A (en) * | 2018-01-12 | 2019-07-25 | 大智株式会社 | Drilling machine, rotational drilling machine, drilling method and drilling bit |
| CN112855061A (en) * | 2021-01-12 | 2021-05-28 | 中国矿业大学 | Hydraulic cutting recovery system and method for ground gas extraction shear failure drilling |
| CN113236113A (en) * | 2021-05-28 | 2021-08-10 | 江苏徐工工程机械研究院有限公司 | Slotted hole drilling device and well drilling machine |
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2021
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| US4681170A (en) * | 1985-08-05 | 1987-07-21 | Furukawa Co., Ltd. | Rock drills for drilling continuously arrayed bores |
| JP3159346U (en) * | 2010-01-27 | 2010-05-20 | 旌詮工程有限公司 | Telescopic ring plate type underground shaft drill |
| WO2013136113A1 (en) * | 2012-03-12 | 2013-09-19 | Flexidrill Limited | Hybrid drill bit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808725A (en) * | 2022-05-11 | 2022-07-29 | 浙江省二建建设集团有限公司 | Pile foundation construction platform for pier on water |
| CN114808725B (en) * | 2022-05-11 | 2023-07-07 | 浙江省二建建设集团有限公司 | Pier pile foundation construction platform on water |
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|---|---|
| CN114016508B (en) | 2022-12-27 |
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Denomination of invention: A construction platform and its construction method for hard rock construction of cast-in-place piles Effective date of registration: 20230725 Granted publication date: 20221227 Pledgee: Bank of Communications Co.,Ltd. Hunan Branch Pledgor: HUNAN HONGHUI TECHNOLOGY Co.,Ltd. Registration number: Y2023980049707 |