CN109853570B - Sediment cleaning device at bottom of concrete bored concrete pile - Google Patents
Sediment cleaning device at bottom of concrete bored concrete pile Download PDFInfo
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- CN109853570B CN109853570B CN201811590917.6A CN201811590917A CN109853570B CN 109853570 B CN109853570 B CN 109853570B CN 201811590917 A CN201811590917 A CN 201811590917A CN 109853570 B CN109853570 B CN 109853570B
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Abstract
The invention discloses a pile bottom sediment cleaning device for a concrete cast-in-place pile, which comprises a drilling machine, a conveying device and a cleaning device, wherein the drilling machine is used for driving a drill rod into a concrete pile body, and the drill rod is installed in sections; the pressure water pump is connected into the drilling machine through a water pipe and is communicated with the drill rod; the slag removal device comprises a rock core pipe and a hole sweeping device, wherein the top end of the rock core pipe is connected with a drill rod, a threaded joint at the top end of the hole sweeping device is spirally connected to the bottom end of the rock core pipe, a hollow pipe body is arranged on the hole sweeping device, a hole is formed in the bottom end of the hollow pipe body, and the hole sweeping device is communicated with the drill rod. The invention can crush the sediment at the bottom of the pile, and adopts high-pressure circulating water to be driven in from the drilling machine, the sediment flows into the drill pipe connector from the drill pipe and is discharged from the water outlets at the two ends of the water discharge pipe to wash the sediment layer, and the sediment flows out of the concrete pile body along the clearance at the outer edge of the drill pipe together with water. The device has simple structure, convenient operation and good effect.
Description
Technical Field
The invention belongs to the technical field of cast-in-place concrete pile construction, and particularly relates to a device for cleaning sediment at the bottom of a cast-in-place concrete pile.
Background
The cast-in-place concrete pile used in large amount for building and structure is a support member for transferring the load of upper structure to geotechnical ground, and plays an important role in the safety of engineering structure. The foundation pile engineering belongs to concealed engineering; after the defects of the pile body and the excessive thickness of the pile bottom sediment are found, the foundation pile can be continuously used only by being processed by methods such as reinforcement and the like; however, before treatment, a large amount of sediment at the bottom of the pile must be removed, and then treatment work such as pile body reinforcement can be carried out, otherwise the treatment effect cannot be achieved. The invention is summarized according to long-term engineering practice experience, mainly solves the engineering technical problem, and enables the foundation pile treatment effect to meet the use requirements of engineering safety and reliability.
Disclosure of Invention
The invention aims to solve the technical problems and provides a device for cleaning sediment at the bottom of a concrete cast-in-place pile.
The invention provides a device for cleaning sediment at the bottom of a concrete cast-in-place pile, which comprises:
the drilling machine is used for driving a drill rod into the concrete pile body, and the drill rod is installed in sections;
the pressure water pump is connected into the drilling machine through a water pipe and is communicated with the drill rod;
the slag removal device comprises a rock core pipe and a hole sweeping device, wherein the top end of the rock core pipe is connected with a drill rod, a threaded joint at the top end of the hole sweeping device is spirally connected to the bottom end of the rock core pipe, a hollow pipe body is arranged on the hole sweeping device, a hole is formed in the bottom end of the hollow pipe body, and the hole sweeping device is communicated with the drill rod.
Preferably, the hole sweeping device comprises a core pipe connector and two rocking rods capable of opening and closing, wherein a Y-shaped joint is arranged at the bottom end of the core pipe connector, and the rocking rods are mounted on the Y-shaped joint through shafts.
As a further preferable means, a drainage pipeline is arranged at the hole of the core tube connector, the drainage pipeline is attached to the bottom end of the core tube connector, the middle position of the drainage pipeline is communicated with the hole, and two ends of the drainage pipeline are water outlets.
As a further preferable means, the drainage pipeline adopts a square prism, a hollow cylindrical channel is formed in the square prism, the square prism is vertically split, and the split is attached to the bottom end of the core tube connector and is welded and fixed.
As a further preferred means, the rocker head is provided with an impact resistant hammer head.
As a further preferable means, the rocker comprises a rocker arm and a steel wire, the rocker arm is provided with a steel wire hole, and the steel wire is inserted into the steel wire hole and locked by a bolt.
As a further preferred means, the rocker or rocker arm controls the rocker or rocker arm to open and close by a spring.
The invention has the beneficial effects that: the slag removing device is placed on a sediment layer at the bottom of a pile by utilizing a pile body coring hole or other holes with the diameter larger than that of the device, two rockers (rocker arms and a steel wire rope) of the hole sweeping device are opened, the drill rods rotate to drive the hole sweeping device to rotate, the rockers can be rotated at a high speed to be 180 degrees at most under the centrifugal force, sediment at the bottom of the pile can be crushed, high-pressure circulating water is adopted to be pumped in from a drilling machine, flows into a rock core pipe connector from the drill rods and is discharged from water outlets at two ends of a water discharging pipe to wash the sediment layer, the sediment flows out of a concrete pile body along a gap at the outer edge of the drill rods and water, the device can be smoothly taken out after cleaning is completed, and reinforcement measures such as grouting can be adopted. The device has simple structure, convenient operation and good effect.
Drawings
Fig. 1-6 are schematic diagrams of six steps of cleaning sediment by the concrete cast-in-place pile bottom sediment cleaning device.
Fig. 7 is a schematic structural view of the hole sweeping device of the present invention.
Fig. 8 is an enlarged schematic view of the water outlet in fig. 7.
Fig. 9 is a schematic view of the construction of fig. 7 with the Y-joint attached to the core barrel connector.
Fig. 10 is a schematic structural view of the rocker arm of fig. 7.
Fig. 11 is a schematic structural view of the spring in fig. 7.
Fig. 12 is a schematic structural view of the impact hammer head in fig. 7.
In the figure: 1. a drilling machine; 2. a pressure water pump; 3. a concrete pile body; 4. a drill stem; 5. a core barrel; 6. a hole sweeping device; 61. a core barrel connector; 62. a Y-shaped joint; 63. a rocker arm; 64. a steel wire; 65. an impact resistant hammer head; 66. a water outlet; 7. settling dregs; 8. pile end bearing layer.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
the invention relates to a device for cleaning sediment at the bottom of a concrete cast-in-place pile, which comprises:
the drilling machine 1 is used for driving a drill rod 4 into a concrete pile body 3, and the drill rod 4 is installed in sections;
the pressure water pump 2 is connected into the drilling machine 1 through a water pipe and communicated with the drill rod 4;
the slag removal device comprises a rock core pipe 5 and a hole sweeping device 6, wherein the top end of the rock core pipe 5 is connected with a drill rod 4, a threaded joint at the top end of the hole sweeping device 6 is spirally connected into the bottom end of the rock core pipe 5, a hollow pipe body is arranged on the hole sweeping device 6, a hole is formed in the bottom end of the hollow pipe body, and the hole sweeping device is communicated with the drill rod.
The hole sweeping device 6 comprises a core pipe connector 61 and two rocker arms 63 capable of being opened and closed, steel wire holes are formed in the rocker arms, steel wire wires 64 are inserted into the steel wire holes and locked by bolts, a Y-shaped joint 62 is arranged at the bottom end of the core pipe connector 61, the rocker arms are mounted on the Y-shaped joint 62 through shafts, and impact-resistant hammers 65 are arranged at the end portions of the steel wire wires 64. When the two rocker arms 63 are closed, a spring is arranged in the rocker arms 63 to control the opening and the closing of the rocker arms 63.
The hole of the rock core tube connector 61 is provided with a drainage pipeline, the drainage pipeline is attached to the bottom end of the rock core tube connector, the middle position of the drainage pipeline is communicated with the hole, and two ends of the drainage pipeline are water outlets 66.
The drainage pipeline adopts a square prism, a hollow cylindrical channel is formed in the square prism, the square prism is vertically split, and the split is attached to the bottom end of the rock core pipe connector 61 and is welded and fixed. The hole sweeping device 6 rotates at high speed in the sediment 7, and a pile end bearing layer 8 is arranged below the sediment.
Fig. 9 shows a core tube connector 61 as a main component, wherein the upper end of the core tube connector is provided with threads, the lower end of the core tube connector is provided with two symmetrical U-shaped components (Y-shaped joints) which are welded with the upper part, the middle part of the U-shaped component is provided with a round hole, the shaft of a rocker arm 63 penetrates through the core tube connector 61 and the two rocker arms 63 from the round hole in the middle of the U-shaped component, and the core tube connector 61 is connected with the rocker arm 63 through the rocker arm shaft and is connected with.
The rocker arm is a component shown in figure 10, the upper part of the rocker arm is an iron ring, a spring installation space is reserved in the inner side of the rocker arm, the diameter of the inner ring is the same as that of the rocker arm shaft, a steel strand diameter hole opening is formed in the bottom surface of the lower iron body, and 2 countersunk head screws are arranged on the side surface of the lower iron body to fix the steel strand. The countersunk threaded holes of the double rocker arms 63 are all in the clockwise direction of the movement of the rocker arms 63, so that the rocker arms 63 are ensured not to generate impact with sediments and pile bodies during rotation (clockwise rotation) and be damaged.
The spring is a component shown in fig. 11, the rocker arms on the two sides are opened at a certain angle in a static state by the spring and automatically unfolded when placed at the pile bottom position, and two steel strands are prevented from being wound when rotating at a low speed.
The steel strand adopts 7 phi 5 steel strands, and the material is general, easily purchases after damaging, and easy processing can change suitable length according to the stake footpath.
The impact-resistant hammer head is a component shown in figure 12 and is a cylindrical steel component, wear-resistant and impact-resistant alloy is embedded in the surface of the impact-resistant hammer head, a steel strand is inserted into a middle opening and fixed by using countersunk head threads, and the direction of the countersunk head thread hole is the same as that of the countersunk head thread hole of the rocker arm.
The operation steps of the pile bottom sediment cleaning device for the concrete cast-in-place pile are as follows:
step 1): installing a drilling machine and a pressure water pump at corresponding positions, and preparing a rock core pipe and a hole sweeping device;
step 2): installing a drill rod on a drilling machine, installing a rock core pipe and a hole sweeping device at the bottom end of the drill rod, and then placing the rock core pipe and the hole sweeping device into the bottom of a pile along a pile body core taking hole;
step 3): the drilling machine drives the drill rod, the rock core pipe and the hole sweeping device to rotate at a high speed, the sediment and the hole bottom weak layer are broken, the pressure water pump injects water into the drilling machine, and the water enters the sediment layer along the drill rod, the rock core pipe connector and the water outlet to be washed at a high pressure;
step 4): the hole sweeping device rotates at a high speed on the sediments to break the sediments and the hole bottom soft layer;
step 5): after the sediments are completely broken, completely flushing the sediments, enabling the flushed sediments to flow out of the concrete pile body along the gap of the outer wall of the drill rod, then stopping the drill, returning the hole sweeping device to be static and folded, lifting the drill rod upwards, and lifting the rock core pipe and the hole sweeping device out of the hole opening together;
step 6): after the hole sweeping device and the core barrel are lifted out of the hole, slurry with a certain consistency is injected into the hole, sediment is removed from the bottom of the pile, the slurry is pumped out, and the bottom of the pile and the drilled hole are reinforced by adopting a reinforcing measure.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
The present invention is not limited to the above description of the embodiments, and those skilled in the art should, in light of the present disclosure, appreciate that many changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a sediment cleaning device at bottom of concrete bored concrete pile which characterized in that: the method comprises the following steps:
the drilling machine (1) is used for driving a drill rod (4) into the concrete pile body (3), and the drill rod (4) is installed in sections;
the pressure water pump (2) is connected into the drilling machine (1) through a water pipe and is communicated with the drill rod (4);
the slag removal device comprises a rock core pipe (5) and a hole sweeping device (6), wherein the top end of the rock core pipe (5) is connected with a drill rod (4), a threaded joint at the top end of the hole sweeping device (6) is spirally connected to the bottom end of the rock core pipe (5), a hollow pipe body is arranged on the hole sweeping device (6), and a hole is formed in the bottom end of the hollow pipe body;
sweep the hole device and communicate with each other with the drilling rod, it includes rock core pipe connector (61) and can open and two closed rockers to sweep hole device (6), rock core pipe connector (61) bottom is equipped with Y type joint (62), the rocker passes through the axle and installs on Y type joint (62), the hole department of rock core pipe connector (61) is equipped with drainage pipe, drainage pipe pastes rock core pipe connector bottom, and drainage pipe intermediate position and hole communicate with each other, and the drainage pipe both ends are delivery port (66), drainage pipe adopts and has seted up hollow cylinder passageway in the square prism, splits the square prism vertically and splits, and the split is pasted in rock core pipe connector (61) bottom and welded fastening.
2. The pile bottom sediment cleaning device of the concrete cast-in-place pile of claim 1, characterized in that: the head of the rocker is provided with an impact-resistant hammer head (65).
3. The pile bottom sediment cleaning device of the concrete cast-in-place pile of claim 2, characterized in that: the rocker comprises a rocker arm (63) and a steel wire (64), the rocker arm is provided with a steel wire hole, and the steel wire (64) is inserted into the steel wire hole and locked by a bolt.
4. The pile bottom sediment cleaning device of the concrete pouring pile according to any one of claims 1 to 3, characterized in that: the rocker or rocker arm (63) controls the rocker or rocker arm (63) to open and close through a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811590917.6A CN109853570B (en) | 2018-12-25 | 2018-12-25 | Sediment cleaning device at bottom of concrete bored concrete pile |
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| CN201811590917.6A CN109853570B (en) | 2018-12-25 | 2018-12-25 | Sediment cleaning device at bottom of concrete bored concrete pile |
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| CN109853570A CN109853570A (en) | 2019-06-07 |
| CN109853570B true CN109853570B (en) | 2020-11-06 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306554B (en) * | 2019-07-11 | 2024-05-10 | 上海建工七建集团有限公司 | Pile cleaning device and method |
| CN110805034B (en) * | 2019-11-14 | 2024-07-19 | 中煤长江基础建设有限公司 | Peripheral swing grouting reinforcement construction method for defect filling pile composite pipe combined pile |
| CN111549774A (en) * | 2020-05-08 | 2020-08-18 | 中电建十一局工程有限公司 | Drilling and filling integrated device for processing thick sediment after pile forming |
| CN112411549B (en) * | 2020-11-06 | 2021-11-09 | 中国港湾工程有限责任公司 | Cast-in-place pile steel casing hole sweeping equipment |
| CN113006067B (en) * | 2021-03-05 | 2022-08-30 | 浙江中正岩土技术有限公司 | Bored concrete pile drilling sediment clearing device |
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| DE19533281A1 (en) * | 1995-09-09 | 1997-03-13 | Bilfinger Berger Bau | Tubular pile driving method |
| CN101963045A (en) * | 2009-07-24 | 2011-02-02 | 新疆中核天山铀业有限公司 | Slag salvaging drill of slurry roller bit and slag salvaging basket |
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| CN105821881A (en) * | 2016-03-25 | 2016-08-03 | 山东大学 | Sediment removal machine for removing sediment at bottom of pile and working method thereof |
| CN205503059U (en) * | 2016-04-11 | 2016-08-24 | 华恒建设集团有限公司 | Circulation slip casting cutting remove system |
| CN107100167A (en) * | 2017-07-03 | 2017-08-29 | 安徽省建设工程测试研究院有限责任公司 | A kind of filling concrete pile body defect and pile bottom sediment cleaning plant |
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2018
- 2018-12-25 CN CN201811590917.6A patent/CN109853570B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19533281A1 (en) * | 1995-09-09 | 1997-03-13 | Bilfinger Berger Bau | Tubular pile driving method |
| CN101963045A (en) * | 2009-07-24 | 2011-02-02 | 新疆中核天山铀业有限公司 | Slag salvaging drill of slurry roller bit and slag salvaging basket |
| CN202778603U (en) * | 2012-09-26 | 2013-03-13 | 湖北金阳石新型耐磨材料科技有限公司 | Vertical type swing hammer crusher device system |
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| CN109853570A (en) | 2019-06-07 |
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