CN204530674U - The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body - Google Patents
The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body Download PDFInfo
- Publication number
- CN204530674U CN204530674U CN201520070366.6U CN201520070366U CN204530674U CN 204530674 U CN204530674 U CN 204530674U CN 201520070366 U CN201520070366 U CN 201520070366U CN 204530674 U CN204530674 U CN 204530674U
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- China
- Prior art keywords
- drilling tool
- sea whelk
- spiral shell
- pile body
- screw pile
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- 238000005553 drilling Methods 0.000 claims abstract description 98
- 238000005086 pumping Methods 0.000 claims abstract description 13
- 230000008719 thickening Effects 0.000 claims description 18
- 239000002689 soil Substances 0.000 abstract description 22
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 125000003003 spiro group Chemical group 0.000 abstract description 3
- 239000011435 rock Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012407 engineering method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001290722 Odontonema Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The one that the discloses the utility model formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body.This formula forward that fetches earth becomes twist bit lamps structure to comprise drilling tool core bar and drilling tool sea whelk integrated with drilling tool core bar, and drilling tool sea whelk is for waiting external diameter, and uniform pitch constructs.Drilling tool core bar is connected with drill bit bottom, drill bit is provided with the valve of pumping concrete, is provided with isometrical and through concrete pumping core pipe in drilling tool core bar.Drill bit top is provided with local and thickeies, and the secondary highly increased makes spiral shell sea whelk, the drilling tool sea whelk that secondary makes spiral shell sea whelk top is provided with auxiliaryly make spiral shell sea whelk.The drilling tool of twist bit lamps structure is become with the formula forward that originally fetches earth, the soil body larger to comparatively hard and cobble, gravel concentration can be derived ground when creeping into, drilling ability is stronger, and drilling depth is darker, comparatively hard cobble, layer of gravel can be penetrated, and weathered rock formation.Utilize the varying pitch screw pile according to the different flight pitch section variable of soil layer becoming the drilling tool of spiro structure to be formed with forward, structure is more reasonable, makes full use of the feature of different soil, and reasonable Arrangement each section of pile body flight pitch, provides higher pile capacity.
Description
Technical field
The utility model relates to a kind of drilling tool structure and screw pile body, and specifically the one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body, belongs to construction engineering technical field.
Background technology
Screw-type shaped pile is existing developing history for many years abroad.Developed by Frenchman in 1966, showed that helical burr ram a was theoretical in 1971 by inferior to be tested by 78 piles of scholar Tom thunder through statistics, when it points out that oil and pile forms screw occlusion under same condition, the bearing capacity that the soil body provides can reach the 1-5 of traditional line type stake doubly.Same condition, same to diameter, long with stake when helical burr ram bearing capacity higher.Therefore, screw pile is widely used in construction work after inventing.
Present stage in order to all kinds of drilling tool and engineering method forming screw shaped pile substantially follow forward namely with drilling tool sea whelk rotating Vortex drilling and forming hole, reverse lifting stock forms the screwed screw shaped pile of pile body, a kind of toothed thread drilling tool disclosed in a kind of semi-screw pile disclosed in a kind of threaded drillpipe, patent CN1254587C disclosed in a kind of perfusion screw pile forming works, patent CN2481840Y and pile forming method thereof and patent CN201254963Y disclosed in CN1059008C patent.Be limited by drilling tool and engineering method, the screw pile formed, stake core is equal to drilling tool core bar substantially, and pile body screw thread is equal to the sea whelk of drilling tool substantially.In order to creep into comparatively hard soil layer, helicoid hydraulic motor often needs the sea whelk that rational height is larger, and thinner drilling tool core bar, the screw pile formed, the stake stressed cross section of core is less, higher pile body stress cannot be born, screw pile can not be played and be engaged the collateral resistance of the promoted soil body to stake with soil body screw, therefore cannot provide higher pile capacity.In order to form comparatively reasonably stake core diameter and thread depth, use core bar thicker, the spiral drill that sea whelk height is less, comparatively hard or that boulder and cobble content the is higher soil body cannot be derived ground, and highly less sea whelk and soil body occlusal contact area too small, run into hard soil layer, easily the soil body shear failure between drilling tool sea whelk will be engaged in, drilling tool original position skids, and is difficult to drilling depth, can not reaches applicable bearing course at pile end.
Various spiral drill, in order to obtain larger moment of torsion and downward power, drilling tool sea whelk is uniform pitch and arranges, the screw pile screw thread formed is the uniform pitch structure being substantially equal to drilling tool sea whelk, can not according to the difference of soil layer, change flight pitch flexibly, formed and adapt to each layer soil body feature, the screw pile that pitch is different.
Summary of the invention
For above-mentioned prior art Problems existing, the one that the provides the utility model formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile, this drilling tool structure simple and wear well, drilling ability is stronger, the decreasing worm-pitch screw pile bearing capacity formed is higher, quality is more stable, cost is lower, efficiency is higher and environmental protection more, and can construct under various geological conditions.
To achieve these goals, the technical solution adopted in the utility model is: the one formula forward that fetches earth becomes twist bit lamps structure, comprises linear drilling tool core bar and drilling tool sea whelk integrated with drilling tool core bar; Concrete pumping core pipe is installed in described drilling tool core bar; Described drilling tool core bar one end is provided with drill bit, described drill bit is provided with the concrete pumping valve connecting described concrete pumping core pipe; Being close to described drill bit and on drilling tool core bar, being provided with cross section is trapezoidal thickening sea whelk; Described thickening sea whelk is arranged along described drilling tool sea whelk rotational trajectory, and is connected with described drilling tool sea whelk; Described drilling tool sea whelk is one-body molded to be had and auxiliaryly makes spiral shell sea whelk, and one-body molded on described thickening sea whelk have cross section to be that trapezoidal secondary makes spiral shell sea whelk.
Further, described drilling tool sea whelk is with described thickening sea whelk external diameter is isometrical and pitch is identical; Meanwhile, described drilling tool sea whelk thickness is not more than 5cm, is highly not less than 10cm.
Further, described thickening sea whelk root thickness is not less than 10cm and is greater than its top thickness; Described secondary is made spiral shell sea whelk root thickness and is greater than its top thickness and the top thickness being equal to described thickening sea whelk; Described secondary is made spiral shell sea whelk root thickness and is not less than 5cm; And described secondary is made spiral shell sea whelk and is at least together, per pass secondary makes 1/4th weeks that spiral shell sea whelk is no more than described drilling tool core bar circumference.
Further, describedly auxiliary make spiral shell sea whelk thickness and be equal to described drilling tool sea whelk thickness, described auxiliary spiral shell sea whelk height of making is not less than described secondary and makes spiral shell sea whelk height, and described auxiliary spiral shell sea whelk of making is at least together, and per pass is assisted and made 1/4th weeks that spiral shell sea whelk is no more than described drilling tool core bar circumference.
Further, comprise screw pile stake core and pile body screw thread integrated with described stake core, described stake core is linear structure, and described pile body screw thread is the gauge structures such as external diameter.
Utilize the varying pitch screw pile body becoming the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, described pile body screw thread is the structure of pitch section variable.
Utilize the varying pitch screw pile body becoming the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, described stake core bottom is connected with the enlarged footing of enlarged-diameter.
Utilize the varying pitch screw pile body becoming the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, this varying pitch screw pile body is whole screwed screw pile bodies.
Utilize the varying pitch screw pile body becoming the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, this varying pitch screw pile body is the screwed screw pile body of part.
The beneficial effects of the utility model are: the drilling tool becoming twist bit lamps structure with the formula forward that originally fetches earth, the soil body larger to comparatively hard and cobble, gravel concentration can be derived ground when creeping into, drilling ability is stronger, drilling depth is darker, comparatively hard cobble, layer of gravel can be penetrated, and weathered rock formation.Utilize the varying pitch screw pile according to the different flight pitch section variable of soil layer becoming the drilling tool of spiro structure to be formed with forward, structure is more reasonable, makes full use of the feature of different soil, and reasonable Arrangement each section of pile body flight pitch, provides higher pile capacity.
Accompanying drawing explanation
Fig. 1 is the overall cross-sectional view of the utility model;
Fig. 2 is the utility model full thread structural entity schematic diagram;
Fig. 3 is the utility model half-thread structural entity schematic diagram;
Fig. 4 is the whole screwed screw pile body schematic diagram of the utility model;
Fig. 5 is the utility model part screwed screw pile body schematic diagram;
Fig. 6 is the utility model segmentation screwed screw pile body schematic diagram;
Fig. 7 is the screw pile body schematic diagram of the utility model with enlarged footing;
In figure: 1, drilling tool core bar, 2, drilling tool sea whelk, 3, secondary becomes spiral shell sea whelk, 4, drill bit, 5, valve, 6, concrete pumping core pipe, 7, assist into spiral shell sea whelk, 8, thicken sea whelk, 9, stake core, 10, pile body screw thread, 11, enlarged footing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3: the one formula forward that fetches earth becomes twist bit lamps structure, comprises linear drilling tool core bar 1 and drilling tool sea whelk 2 integrated with drilling tool core bar 1; Concrete pumping core pipe 6 is installed in described drilling tool core bar 1; Described drilling tool core bar 1 one end is provided with drill bit 4, described drill bit 4 is provided with the concrete pumping valve 5 connecting described concrete pumping core pipe 6; Being close to described drill bit 4 and on drilling tool core bar 1, being provided with cross section is trapezoidal thickening sea whelk 8; Described thickening sea whelk 8 is arranged along described drilling tool sea whelk 2 rotational trajectory, and is connected with described drilling tool sea whelk 2; Described drilling tool sea whelk 2 is one-body molded to be had and auxiliaryly makes spiral shell sea whelk 7, and one-body molded on described thickening sea whelk 8 have cross section to be that trapezoidal secondary makes spiral shell sea whelk 3.
Described drilling tool sea whelk 2 is with described thickening sea whelk 11 external diameter is isometrical and pitch is identical; Meanwhile, described drilling tool sea whelk 2 thickness is not more than 5cm, is highly not less than 10cm.
Described thickening sea whelk 8 root thickness is not less than 10cm and is greater than its top thickness; Described secondary is made spiral shell sea whelk 3 root thickness and is greater than its top thickness and the top thickness being equal to described thickening sea whelk 11; Described secondary is made spiral shell sea whelk root thickness and is not less than 5cm; And described secondary is made spiral shell sea whelk 3 and is at least together, per pass secondary makes 1/4th weeks that spiral shell sea whelk 3 is no more than described drilling tool core bar 1 circumference.
Describedly auxiliary make spiral shell sea whelk 7 thickness and be equal to described drilling tool sea whelk 2 thickness, described auxiliary spiral shell sea whelk 7 of making highly is not less than described secondary and makes spiral shell sea whelk 3 height, and described auxiliary spiral shell sea whelk 7 of making is at least together, and per pass is assisted and made 1/4th weeks that spiral shell sea whelk 7 is no more than described drilling tool core bar 1 circumference.
As shown in Figure 4: the varying pitch screw pile body that a kind of utilization becomes the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, comprise screw pile stake core 9 and pile body screw thread 10 integrated with described stake core 9, described stake core 9 is linear structure, and described pile body screw thread 10 is the gauge structures such as external diameter.
As shown in Figure 5 and Figure 6: described pile body screw thread 9 is the structure of pitch section variable.
As shown in Figure 7: described stake core bottom is connected with the enlarged footing 11 of enlarged-diameter.
This varying pitch screw pile body is whole screwed screw pile bodies.
This varying pitch screw pile body is the screwed screw pile body of part.
A kind of formula forward that fetches earth of the utility model becomes twist bit tool to provide a kind of forward soil taking hole forming and forward puies forward the approach boring and make spiral shell pile.Behind position at the bottom of drilling tool forward drilling and forming hole to design stake, do not change direction of rotation and upwards promote drilling tool, drilling tool is by screw thread cleaning in stake holes, the soil body under shearing is engaged between sea whelk, formed cylindrical and give prominence to the drilling tool of sea whelk and native combination with auxiliary spiral shell sea whelk made from expansion sea whelk top two parts, and sweep spiral shell and expand stake holes and stake core diameter of section pore-forming, described outstanding sea whelk is the auxiliary projection made spiral shell sea whelk and expand that sea whelk exceeds drilling tool sea whelk external diameter.Carry auxiliary spiral shell sea whelk of making in brill squeezed hole process and make spiral shell sea whelk top rotation blocking-up soil body pressure vertically downward to the impact of bottom pile body formation screw thread at secondary, secondary is made spiral shell sea whelk and is rotated in stake holes and sweep native secondary and make spiral shell, when secondary makes spiral shell, by adjustment drilling tool often revolve turn around time hoisting depth form the different each section of screw thread of pitch, when carrying brill, non rotating drilling tool is quiet to be pulled out, form the not threaded stake holes of linear pattern, simultaneous pumping fills with stake concrete, becomes the whole or threaded Unequal distance screw pile of partial-band of pile body.
The utility model formula forward that fetches earth becomes twist bit tool, screwed screw stake holes is formed when creeping into, stake holes straight line portion diameter is much smaller than stake core diameter, when creeping into, pore-forming resistance is little, when forward carries brill, drilling tool will be engaged in the soil body shear failure between sea whelk in stake holes, secondary sweeps the linear pattern stake holes diameter that spiral shell pore-forming forms the requirement of satisfied stake core diameter, comparatively hard and that boulder and cobble content the is larger soil body can be derived ground by highly higher drilling tool sea whelk, alleviate and creep into resistance, and thinner drilling tool core bar, more easily creep into and penetrate hard soil layer, drilling ability is stronger.Forward becomes spiro structure, and the varying pitch screw pile thickness of thread formed, highly, pitch size does not restrict by the sea whelk of drilling tool own, can provide higher pile capacity.
Claims (9)
1. the formula that fetches earth forward becomes a twist bit lamps structure, it is characterized in that: comprise linear drilling tool core bar (1) and drilling tool sea whelk (2) integrated with drilling tool core bar (1); In described drilling tool core bar (1), concrete pumping core pipe (6) is installed; Described drilling tool core bar (1) one end is provided with drill bit (4), described drill bit (4) is provided with the concrete pumping valve (5) connecting described concrete pumping core pipe (6); Being close to described drill bit (4) and on drilling tool core bar (1), being provided with cross section is trapezoidal thickening sea whelk (8); Described thickening sea whelk (8) is arranged along described drilling tool sea whelk (2) rotational trajectory, and is connected with described drilling tool sea whelk (2); Described drilling tool sea whelk (2) is one-body molded to be had and auxiliaryly makes spiral shell sea whelk (7), and described thickening sea whelk (8) is upper one-body moldedly has cross section to be that trapezoidal secondary makes spiral shell sea whelk (3).
2. the one according to claim 1 formula forward that fetches earth becomes twist bit lamps structure, it is characterized in that: described drilling tool sea whelk (2) is with described thickening sea whelk (11) external diameter is isometrical and pitch is identical; Meanwhile, described drilling tool sea whelk (2) thickness is not more than 5cm, is highly not less than 10cm.
3. the one according to claim 1 and 2 formula forward that fetches earth becomes twist bit lamps structure, it is characterized in that: described thickening sea whelk (8) root thickness is not less than 10cm and is greater than its top thickness; Described secondary is made spiral shell sea whelk (3) root thickness and is greater than its top thickness and the top thickness being equal to described thickening sea whelk (11); Described secondary is made spiral shell sea whelk root thickness and is not less than 5cm; And described secondary is made spiral shell sea whelk (3) and is at least together, per pass secondary makes 1/4th weeks that spiral shell sea whelk (3) is no more than described drilling tool core bar (1) circumference.
4. the one according to claim 3 formula forward that fetches earth becomes twist bit lamps structure, it is characterized in that: describedly auxiliary make spiral shell sea whelk (7) thickness and be equal to described drilling tool sea whelk (2) thickness, described auxiliary spiral shell sea whelk (7) of making highly is not less than described secondary and makes spiral shell sea whelk (3) highly, and described auxiliary spiral shell sea whelk (7) of making is at least together, per pass is auxiliary makes 1/4th weeks that spiral shell sea whelk (7) is no more than described drilling tool core bar (1) circumference.
5. one kind utilizes the varying pitch screw pile body becoming the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, it is characterized in that: comprise screw pile stake core (9) and pile body screw thread (10) integrated with described stake core (9), described stake core (9) is linear structure, and described pile body screw thread (10) is the gauge structures such as external diameter.
6. according to claim 5 a kind of utilize become the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth varying pitch screw pile body, it is characterized in that: the structure that described pile body screw thread (9) is pitch section variable.
7. the varying pitch screw pile body that a kind of utilization according to claim 5 or 6 becomes the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth, is characterized in that: described stake core bottom is connected with the enlarged footing (11) of enlarged-diameter.
8. according to claim 7 a kind of utilize become the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth varying pitch screw pile body, it is characterized in that: this varying pitch screw pile body is whole screwed screw pile bodies.
9. according to claim 7 a kind of utilize become the drilling tool of twist bit lamps structure to be formed with the formula forward of fetching earth varying pitch screw pile body, it is characterized in that: this varying pitch screw pile body is the screwed screw pile body of part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070366.6U CN204530674U (en) | 2015-01-30 | 2015-01-30 | The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070366.6U CN204530674U (en) | 2015-01-30 | 2015-01-30 | The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body |
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| CN204530674U true CN204530674U (en) | 2015-08-05 |
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| CN201520070366.6U Withdrawn - After Issue CN204530674U (en) | 2015-01-30 | 2015-01-30 | The one formula forward that fetches earth becomes twist bit lamps structure and varying pitch screw pile body |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612136A (en) * | 2015-01-30 | 2015-05-13 | 刘淼 | Soil taking type positive thread forming drilling tool structure and screw pile with varying thread pitches |
| CN105672875A (en) * | 2016-03-11 | 2016-06-15 | 刘淼 | Improved structure of two-way spiral extrusion and expansion drilling tool and construction method of rough-surface extrusion and expansion pile |
| CN107355188A (en) * | 2017-07-20 | 2017-11-17 | 重庆交通大学 | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation |
| CN111119756A (en) * | 2020-02-11 | 2020-05-08 | 海南卓典高科技开发有限公司 | Drilling tool, pile forming device and pile forming method of soil squeezing pile |
| WO2020201854A1 (en) * | 2019-04-03 | 2020-10-08 | Jaron Lyell Mcmillan | No vibration stone column drill |
-
2015
- 2015-01-30 CN CN201520070366.6U patent/CN204530674U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612136A (en) * | 2015-01-30 | 2015-05-13 | 刘淼 | Soil taking type positive thread forming drilling tool structure and screw pile with varying thread pitches |
| CN104612136B (en) * | 2015-01-30 | 2017-03-22 | 刘淼 | Soil taking type positive thread forming drilling tool structure and screw pile with varying thread pitches |
| CN105672875A (en) * | 2016-03-11 | 2016-06-15 | 刘淼 | Improved structure of two-way spiral extrusion and expansion drilling tool and construction method of rough-surface extrusion and expansion pile |
| CN107355188A (en) * | 2017-07-20 | 2017-11-17 | 重庆交通大学 | A kind of cannulated threaded shape drill bit and its application method suitable for the cast-in-place overlength screw rod pile driving construction of soft foundation |
| CN107355188B (en) * | 2017-07-20 | 2019-06-04 | 重庆交通大学 | A hollow thread-shaped drill bit suitable for the construction of cast-in-place super-long screw piles on loose and soft foundations and using method thereof |
| WO2020201854A1 (en) * | 2019-04-03 | 2020-10-08 | Jaron Lyell Mcmillan | No vibration stone column drill |
| CN111119756A (en) * | 2020-02-11 | 2020-05-08 | 海南卓典高科技开发有限公司 | Drilling tool, pile forming device and pile forming method of soil squeezing pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150805 Effective date of abandoning: 20171114 |
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| AV01 | Patent right actively abandoned |