CN112095608A - Hole sweeping device for cast-in-situ bored pile with positive circulation slurry retaining wall and use method of hole sweeping device - Google Patents
Hole sweeping device for cast-in-situ bored pile with positive circulation slurry retaining wall and use method of hole sweeping device Download PDFInfo
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- CN112095608A CN112095608A CN202010804205.0A CN202010804205A CN112095608A CN 112095608 A CN112095608 A CN 112095608A CN 202010804205 A CN202010804205 A CN 202010804205A CN 112095608 A CN112095608 A CN 112095608A
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- rack
- hole
- drilling
- drill bit
- hack
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
- E02D13/10—Follow-blocks of pile-drivers or like devices
Abstract
The invention relates to the field of soil layer or rock drilling, in particular to a hole sweeping device for a forward circulation slurry dado cast-in-situ bored pile and a using method thereof. The utility model provides a positive circulation mud dado drilling bored concrete pile hole cleaning device, includes drilling rod (1) and drill bit (2), and drill bit (2) are fixed in the bottom of drilling rod (1), and drill bit (2) are drilling down in hole (3) under the drive of drilling rod (1), characterized by: the drill bit is characterized by further comprising a soil crushing net rack (4), wherein the number of the soil crushing net racks (4) is at least three, each soil crushing net rack (4) is welded and fixed on the outer side wall of the drill rod (1) through one side edge and is arranged above the drill bit (2), and the soil crushing net racks (4) are evenly distributed around the central axis of the drill rod (1). The invention has simple manufacture and convenient use.
Description
Technical Field
The invention relates to the field of soil layer or rock drilling, in particular to a hole sweeping device for a forward circulation slurry dado cast-in-situ bored pile and a using method thereof.
Background
In the construction process of the slurry wall-protecting cast-in-situ bored pile, a drill bit drills a soil layer to strip a mud block, the drill bit is ground and broken for multiple times and then returns to the ground along with slurry, so that the drilling speed is reduced due to the influence of sediments at the drill bit, time and electric energy are wasted, and the thickness of the sediments during hole cleaning can have certain influence on the pile forming quality.
Disclosure of Invention
The invention discloses a hole cleaning device for a cast-in-place pile with a positive circulation mud retaining wall and a method for using the hole cleaning device, and aims to overcome the defects of the prior art and provide hole cleaning equipment which is simple to manufacture and convenient to use.
The invention achieves the purpose by the following technical scheme:
the utility model provides a positive circulation mud dado drilling bored concrete pile hole cleaning device, includes drilling rod and drill bit, and the drill bit is fixed in the bottom of drilling rod, and the drill bit creeps into downwards characterized by in the hole under the drive of drilling rod: the drill bit is characterized by further comprising at least three soil breaking net racks, each soil breaking net rack is fixed on the outer side wall of the drill rod through a side edge in a welded mode and is arranged above the drill bit, and the soil breaking net racks are evenly distributed around the central axis of the drill rod.
The positive circulation mud dado drilling bored concrete pile hole sweeping device is characterized in that: the hack rack comprises the fixing grid of outer lane and inside connecting rod by the steel bar welding, and the shape of fixing grid constitutes on the long limit of rectangle through the long base for isosceles trapezoid, and the both ends of connecting rod are fixed respectively on isosceles trapezoid's short base and another long edge of rectangle, each connecting rod all with the minor face of rectangle is parallel, and the hack rack passes through another long limit welded fastening of rectangle is on the lateral wall of drilling rod.
The positive circulation mud dado drilling bored concrete pile hole sweeping device is characterized in that: the radius of the circumscribed circle of the outermost edge of each soil breaking net rack is 85 to 95 percent of the aperture of the hole.
The invention can utilize the steel bar in the construction site for welding, when in use, the soil crushing net rack made of the steel bar is welded on the drill rod of the drilling machine, in the drilling process of the drilling machine, the drill rod drives the drill bit to rotate and simultaneously drives each soil crushing net rack to rotate, the sediment soil block brought in the hole is quickly crushed by the soil crushing net rack and then is cleared out of the hole, and the sediment is quickly removed in a mode of breaking the whole into parts, thereby improving the drilling speed of the pile machine and the pile forming quality of the pile.
The invention overcomes the defect of limited hole sweeping and cleaning capabilities of the drill bit of the forward circulation drilling and pouring pile machine, overcomes the defects of thicker sediment at the drill bit and low hole cleaning speed of the pile machine in the drilling process due to the fact that slurry returning to the ground can not be quickly cleaned out in the drilling process of the pouring pile, can quickly clean the sediment at the drill bit, improves the drilling speed, saves time and improves the pile forming quality.
The invention has the following beneficial effects:
1. the preparation process is simple and the product has the advantages of simple process,
2. the use is convenient, the economic benefit is high,
3. can be repeatedly used.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
The utility model provides a positive circulation mud dado drilling bored concrete pile hole cleaning device, includes drilling rod 1, drill bit 2, hack rack 4, as shown in figure 1, the concrete structure is:
the drill bit 2 is fixed in the bottom of drilling rod 1, and the drill bit 2 creeps into downwards in hole 3 under the drive of drilling rod 1, and hack rack 4 has four, and every hack rack 4 all fixes on the lateral wall of drilling rod 1 and locates the top of drill bit 2 through a side welded fastening, and each hack rack 4 centers on the central axis evenly distributed of drilling rod 1.
In this embodiment: hack rack 4 constitutes with the steel bar welding, and hack rack 4 comprises the fixed grid 41 of outer lane and inside connecting rod 42, and the shape of fixed grid 41 constitutes on the long limit of rectangle through the long base for isosceles trapezoid, and the both ends of connecting rod 42 are fixed respectively on the short base of isosceles trapezoid and another long edge of rectangle, each connecting rod 42 all with the minor face of rectangle is parallel, and hack rack 4 passes through another long edge welded fastening of rectangle is on the lateral wall of drilling rod 1.
In this embodiment: the radius of the circumscribed circle of the outermost edge of each soil crushing net rack 4 is 85 to 95 percent of the aperture of the hole 3.
When the method is manufactured, the waste steel bars with proper diameters are selected, and the steel bars with the diameters of 18mm are generally selected; then welding the waste steel bars with the same specification into a soil breaking net rack 4, and welding the soil breaking net rack 4 on the drill rod 1 above the drill bit 2;
if more than one drill rod 1 is arranged, the drill rods 1 are connected end to end through connecting devices 11 such as flanges and the like to form a long rod, at the moment, the drill bit 2 is fixed at the bottom of the lowermost drill rod 1, and the soil crushing net rack 4 is also fixed on the outer side surface of the lowermost drill rod 1;
the aperture size of the width holes 3 of the soil breaking net racks 4 is determined, and the radius of the circumscribed circle of the outermost edges of each soil breaking net rack 4 is 85-95% of the aperture of the holes 3; after the welding is checked to be firm and reliable, the drilling construction can be implemented.
The reinforcing bar of the usable job site of this embodiment welds the utilization, during the use, weld the hack rack 4 that the reinforcing bar was made on the drilling rod 1 of rig, at the rig drilling in-process, drilling rod 1 drive drill bit 2 is rotatory to drive each hack rack 4 rotatory simultaneously, the sediment earth piece that gets up in the hole 3 is cleared up outside the hole 3 after being smashed fast by hack rack 4 to the sediment is clear away fast to the mode of "breaking up into parts" has so both improved the drilling speed of stake machine, has improved the pile quality of stake again.
Claims (5)
1. The utility model provides a positive circulation mud dado drilling bored concrete pile hole cleaning device, includes drilling rod (1) and drill bit (2), and drill bit (2) are fixed in the bottom of drilling rod (1), and drill bit (2) are drilling down in hole (3) under the drive of drilling rod (1), characterized by: the drill bit is characterized by further comprising a soil crushing net rack (4), wherein the number of the soil crushing net racks (4) is at least three, each soil crushing net rack (4) is welded and fixed on the outer side wall of the drill rod (1) through one side edge and is arranged above the drill bit (2), and the soil crushing net racks (4) are evenly distributed around the central axis of the drill rod (1).
2. The positive circulation mud dado bored concrete pile hole sweeping device of claim 1, characterized by: hack rack (4) constitute with the steel bar welding, and hack rack (4) comprise fixing grid (41) and inside connecting rod (42) of outer lane, and the shape of fixing grid (41) is isosceles trapezoid and fixes through long base and constitute on the long limit of rectangle, and the both ends of connecting rod (42) are fixed respectively on isosceles trapezoid's short base and another long edge of rectangle, each connecting rod (42) all with the minor face of rectangle is parallel, and hack rack (4) pass through another long limit welded fastening of rectangle is on the lateral wall of drilling rod (1).
3. The positive circulation mud dado bored concrete pile hole sweeping device of claim 1 or 2, characterized in that: the radius of the circumscribed circle of the outermost edge of each soil breaking net rack (4) is 85 to 95 percent of the aperture of the hole (3).
4. The use method of the hole sweeping device of the positive circulation mud dado bored pile according to claim 1 or 2, characterized in that: the method is implemented in sequence according to the following steps:
weld hack rack (4) on drilling rod (1) of rig, at the rig in-process of drilling, drilling rod (1) drive drill bit (2) are rotatory to drive each hack rack (4) rotatory simultaneously, and the sediment soil block that gets up in hole (3) is smashed by hack rack (4) fast, clears up the sediment outside hole (3).
5. The use method of the hole sweeping device for the forward circulation mud retaining wall cast-in-situ bored pile as claimed in claim 3, wherein: the method is implemented in sequence according to the following steps:
weld hack rack (4) on drilling rod (1) of rig, at the rig in-process of drilling, drilling rod (1) drive drill bit (2) are rotatory to drive each hack rack (4) rotatory simultaneously, and the sediment soil block that gets up in hole (3) is smashed the back fast and is clear out outside hole (3) by hack rack (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804205.0A CN112095608A (en) | 2020-08-12 | 2020-08-12 | Hole sweeping device for cast-in-situ bored pile with positive circulation slurry retaining wall and use method of hole sweeping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010804205.0A CN112095608A (en) | 2020-08-12 | 2020-08-12 | Hole sweeping device for cast-in-situ bored pile with positive circulation slurry retaining wall and use method of hole sweeping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112095608A true CN112095608A (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010804205.0A Pending CN112095608A (en) | 2020-08-12 | 2020-08-12 | Hole sweeping device for cast-in-situ bored pile with positive circulation slurry retaining wall and use method of hole sweeping device |
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| Country | Link |
|---|---|
| CN (1) | CN112095608A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894804A (en) * | 2014-03-17 | 2014-07-02 | 中冶集团武汉勘察研究院有限公司 | Method for manufacturing cylindrical mud stirring type drilling tool |
-
2020
- 2020-08-12 CN CN202010804205.0A patent/CN112095608A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894804A (en) * | 2014-03-17 | 2014-07-02 | 中冶集团武汉勘察研究院有限公司 | Method for manufacturing cylindrical mud stirring type drilling tool |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201218 |
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| RJ01 | Rejection of invention patent application after publication |