CN104110033A - Hollow long spiral thin-wall cast-in-place pile casing - Google Patents
Hollow long spiral thin-wall cast-in-place pile casing Download PDFInfo
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- CN104110033A CN104110033A CN201410365214.9A CN201410365214A CN104110033A CN 104110033 A CN104110033 A CN 104110033A CN 201410365214 A CN201410365214 A CN 201410365214A CN 104110033 A CN104110033 A CN 104110033A
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Abstract
The invention discloses a hollow long spiral thin-wall cast-in-place pile casing. The hollow long spiral thin-wall cast-in-place pile casing comprises a first tube with two opening ends and a second tube socketed in the first tube, the first tube comprises an inner tube and an outer tube, a spiral blade is arranged on the outer wall of the outer tube, two grooves are formed in the inner wall of the outer tube and the outer wall of the inner tube respectively and are oppositely formed along circumferential directions of the outer tube and the inner tube, a ball is placed between the two grooves, a plurality of clamp bars are arranged on the inner wall of the inner tube along the length direction, guide wheels are arranged on front faces of the clamp bars, the bottom end of a gap between the outer tube and the inner tube is sealed by a rubber piece fixed on the inner tube, clamp grooves identical with the clamp bars in number are formed in the outer wall of the second tube along the length direction, and the clamp bars on the inner wall of the inner tube are inserted into the clamp grooves in a matched manner. The hollow long spiral thin-wall cast-in-place pile casing has the advantages that the casing has lower requirements on power than an existing long spiral driller, bearing capacity is improved remarkably under the condition of same concrete dosage, applicative stratum range is wide, soil sampling is simple and efficient and construction is safe.
Description
Technical field
The present invention relates to grout pile sleeve pipe, be specifically related to the long spiral thin wall filling pile of cavity pipe casing.
Background technology
In pile foundation engineering, long auger is pressed and filled with stake machine is to be widely used in the stake machine that building site construction is used, order about at power the long spiral fan arranging on the drill bit under main drilling rod and main drilling rod under effect and can disposablely get out a hole, again by hollow main drilling rod to concrete perfusion in stake hole and pile, it is high that long screw auger drilling deposited pile has bearing capacity, be suitable for the long advantage such as can freely change of the wide and stake of stratum scope, be widely used, but the application of long-spiral drilling machine in large-section in-situ concrete pile is but restricted, generally can only be used for the situation that castinplace pile diameter is less than 800mm, reason is that large-section in-situ concrete pile will overcome very large soil compaction and shear soil resistance in the time of drilling construction, long-spiral drilling machine cannot meet the demands on power.
In basic pile foundation engineering construction, the construction of super large, super deep pile foundation engineering pile is comparatively general, for large-section in-situ concrete pile type, at present, more advanced technique is to adopt large diameter thin wall bored concrete pile technology, this is a kind of immersed tube that adopts, fetch earth, dress mould, clear hole, lay reinforcing cage, concrete perfusion, tube drawing, form removal, backfill, the construction technology of pile, this construction technology has under equal requirement for bearing capacity, can reduce concrete amount, reduce costs or under equal concrete amount, can significantly improve the advantage of pile body flexural strength; The defect existing is: the mode that generally adopts the artificial shoveling of full section or machinery to cut the earth for large diameter thin wall pouring pile hole fetches earth, take this construction method not only to lavish labor on, and constructor need to arrive a bottom, hole in installation form, work progress has certain danger.
Summary of the invention
The object of this invention is to provide a kind of to long screw auger mechanomotive force require lower, under identical concrete amount, can obviously improve bearing capacity, be suitable for stratum scope wide, fetch earth simply efficiently, the cavity llong helix bored piles pipe casing of construction safety.
For realizing above object, the long spiral thin wall filling pile of cavity of the present invention pipe casing comprises the first body of inner hollow both ends open and is socketed on the second body in the first body; The first body is made up of inner and outer tubes again, outer tube outer wall is provided with spiral fan, this spiral fan lower end exceeds outer tube bottom, outer tube wall and outer wall of inner tube are equipped with groove, arrange along outer tube and the even opposite of inner tube circumferencial direction respectively, between two grooves, place ball, inner tube wall is elongated along its length arranges many card articles, every card article front is evenly provided with guide wheel, and outer tube and interior ligament bottom are by fixing sheet rubber sealing on inner pipe; The draw-in groove that the elongated setting along its length of described the second tube wall is identical with described card article radical quantity, inserts this draw-in groove coupling with the inner tube wall card article of guide wheel.
The bottom end face of described every card article is provided with downward-sloping clear native sheet, between clear native sheet base and the second body, leaves gap.
Described the second tube wall draw-in groove and be three with the inner tube wall card article radical of guide wheel and be 120 ° and be evenly arranged.
Described in the long spiral thin wall filling pile of said structure cavity pipe casing, the groove of outer tube and inner tube arranges along outer tube and the even opposite of inner tube circumferencial direction respectively, and its beneficial effect is to provide rotation space for ball; Thereby the beneficial effect of described card article is to insert the draw-in groove realization of the second body and being connected of the first body inner tube; Described clear its beneficial effect of native sheet is the soil body in cleaning the second body draw-in groove; The described ball being arranged between inner and outer pipes two grooves is solid sphere, and its beneficial effect rotates mutually for ease of the first body inner and outer pipes; Described its beneficial effect of guide wheel evenly arranging along card article front length direction is the friction reducing between card article and draw-in groove; Described sheet rubber one end is fixedly connected on inner tube bottom along inner tube circumferencial direction, and the other end is close to outer tube bottom, rotates but do not hinder outer tube, and its beneficial effect enters between inner and outer pipes for preventing the soil body; The elongated draw-in groove that arranges of described the second body length direction, its beneficial effect inserts for ease of the first body inner tube card article, makes the first body and the second body combination, prevents from occurring mutually to rotate between the first body inner tube and the second body.
The long spiral thin wall filling pile of cavity of the present invention pipe casing main operational steps in the time of construction is as follows: 1. place cleaning; 2. vibration is sunk to above-mentioned the second body to design elevation, and reserved certain length body, outside the soil body, facilitates the first body to insert; 3. the first body inner tube card article inserts after the reserved length section of the second body along the second body draw-in groove, the first body outer tube rotates along inner tube by roller under dynamic action, the spiral fan that is welded on outer tube outer wall constantly takes out the soil body, the clear native sheet that is contained in the first body inner tube card article bottom is cleared up the soil body in the second body draw-in groove, and the first body is constantly declined along the second body draw-in groove smoothly until arrive design elevation; 4. extract the first body along the second body draw-in groove, form annular stake hole; 5. sediment at the bottom of cleaning eye; 6. place reinforcing cage, concreting; 7. the second body is extracted on concreting limit in limit, and utilizes the second body tamped concrete; 8. pile.
The long spiral thin wall filling pile of cavity of the present invention pipe casing, combine the advantage of large diameter thin wall bored concrete pile technology and long screw auger drilling deposited pile, power requirement can be reduced and annular thin wall castinplace pile can be formed again, in soft, hardpan, can construct, be suitable for stratum scope wide, there is following beneficial effect:
Compared with existing long screw auger drilling deposited pile, under equal requirement for bearing capacity, can reduce concrete amount on the one hand, reduce costs, or under equal concrete amount, can significantly improve pile body flexural strength; On the other hand, can also the not disturbance inner soil body, can not only reduce power requirement, has solved prior art and has made diameter exceed the problem that the application in the large-section in-situ concrete pile of 800mm is restricted because meeting the demands in long screw auger mechanomotive force; And solved the difficult problem that castinplace pile annular fetches earth, and also avoiding employing people frock mould, constructor is protected safely.
Brief description of the drawings
Fig. 1 is first, second body vertical section schematic diagram of the long spiral thin wall filling pile of cavity of the present invention pipe casing;
Fig. 2 is A-A generalized section in Fig. 1;
Fig. 3 is the positive elevational schematic view of draw-in groove of the long spiral thin wall filling pile of cavity of the present invention pipe casing the second body;
Fig. 4 is the draw-in groove side elevation schematic diagram of the long spiral thin wall filling pile of cavity of the present invention pipe casing the second body;
Fig. 5 is the long spiral thin wall filling pile of cavity of the present invention pipe casing inner tube wall card article and the positive elevational schematic view of guide wheel;
Fig. 6 is the long spiral thin wall filling pile of cavity of the present invention pipe casing inner tube wall card article and guide wheel side elevation schematic diagram;
Fig. 7 is the sheet rubber scheme of installation of the long spiral thin wall filling pile of cavity of the present invention pipe casing;
Fig. 8 is detail drawing 1 groove and ball assembly structure schematic diagram in Fig. 1;
Fig. 9 is detail drawing 2 card articles and draw-in groove assembly structure schematic diagram in Fig. 2;
Figure 10 is the clear native sheet scheme of installation of detail drawing 3 in Fig. 1.
Reference numeral: the groove 6 of the first body 1, the second body 2, inner tube 3, outer tube 4, spiral fan 5, outer tube wall, the groove 7 of outer wall of inner tube, the card article 8 of inner tube wall, clear native sheet 9, ball 10, guide wheel 11, draw-in groove 12, weld seam 13, bolt 14 and sheet rubber 15.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the long spiral thin wall filling pile of cavity of the present invention pipe casing is described in further detail.
As shown in Fig. 1～Figure 10, the long spiral thin wall filling pile of cavity of the present invention pipe casing comprises the first body 1 of inner hollow both ends open and is socketed on the second body 2 in the first body; The first body 1 is made up of inner tube 3 and outer tube 4 again, outer tube outer wall is provided with spiral fan 5, this spiral fan lower end exceeds outer tube bottom, outer tube wall and outer wall of inner tube are equipped with groove 6,7, arrange along outer tube 4 and the inner tube 3 even opposites of circumferencial direction respectively, between two grooves, place ball 10, inner tube wall is elongated along its length to be arranged three card articles 8 and is 120 ° and is evenly arranged, every card article front is evenly provided with guide wheel 11, and outer tube 4 and inner tube 3 bottoms, gap are by sealing with the fixing sheet rubber 15 on inner pipe of bolt 14; The draw-in groove 12 that the elongated setting along its length of described the second tube wall is identical with described card article radical quantity, the inner tube wall card article 8 with guide wheel 11 inserts this draw-in groove coupling; The bottom end face of every card article 8 is provided with downward-sloping clear native sheet 9, between clear native sheet base and the second body 2, leaves gap.
When construction, first by high-frequency vibratory hammer, the second body 2 is vibrated to the insertion soil body, and reserved certain length body is outside the soil body, when the first body inner tube card article 8 inserts along draw-in groove 12 after the reserved length section of the second body, the first body outer tube 4 rotates along inner tube 3 by roller 10 under dynamic action, and the spiral fan 5 of outer tube outer wall welding takes out the soil body; Due to Action of Gravity Field, along with the continuous taking-up of the soil body, the clear native sheet 9 of the first body bottom can be cleared up the soil body of draw-in groove interior 12, and the first body constantly declines until a stake hole soil body all takes out along the second body draw-in groove.After the first body arrives design elevation, the first body is extracted along draw-in groove 12, just formed thus an annular stake hole, at the bottom of utilizing Qi Jiang hole, clear hole, sediment is cleaned out, and then, transfers reinforcing cage, concreting, treat that concreting arrives certain height, limit is extracted interior tube edge and is returned slotting tamped concrete, has just formed needed thin wall filling pile.
Claims (3)
1. the long spiral thin wall filling pile of a cavity pipe casing, comprises the first body of inner hollow both ends open and is socketed on the second body in the first body, the first tube wall is provided with spiral fan, and this spiral fan lower end exceeds outer tube bottom; It is characterized in that: described the first body is made up of inner and outer tubes again, outer tube wall and outer wall of inner tube are equipped with groove, arrange along outer tube and the even opposite of inner tube circumferencial direction respectively, between two grooves, place ball, inner tube wall is elongated along its length arranges many card articles, every card article front is evenly provided with guide wheel, and outer tube and interior ligament bottom are by fixing sheet rubber sealing on inner pipe; The draw-in groove that the elongated setting along its length of described the second tube wall is identical with described card article radical quantity, inserts this draw-in groove coupling with the inner tube wall card article of guide wheel.
2. the long spiral thin wall filling pile of cavity pipe casing according to claim 1, is characterized in that: the bottom end face of described every card article is provided with downward-sloping clear native sheet, between clear native sheet base and the second body, leaves gap.
3. the long spiral thin wall filling pile of cavity pipe casing according to claim 1, is characterized in that: described the second tube wall draw-in groove and be three with the inner tube wall card article radical of guide wheel and be 120 ° and be evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410365214.9A CN104110033B (en) | 2014-07-29 | 2014-07-29 | Cavity long spire thin wall filling pile pipe casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410365214.9A CN104110033B (en) | 2014-07-29 | 2014-07-29 | Cavity long spire thin wall filling pile pipe casing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104110033A true CN104110033A (en) | 2014-10-22 |
| CN104110033B CN104110033B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410365214.9A Active CN104110033B (en) | 2014-07-29 | 2014-07-29 | Cavity long spire thin wall filling pile pipe casing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695757A (en) * | 2020-12-21 | 2021-04-23 | 蒲禾 | Super slow setting concrete secant pile casing drill sleeve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62296009A (en) * | 1986-06-12 | 1987-12-23 | Seiji Tsuji | Piling work |
| CN2108166U (en) * | 1991-07-27 | 1992-06-24 | 广东省鹤山县建筑设计院 | Dual pipe drilling tools with single acting local reverse recycle |
| CN102182404A (en) * | 2011-03-10 | 2011-09-14 | 李征 | Cast-in-situ tubular pile rotary drilling rig capable of forming annular hole and piling method |
| CN202265822U (en) * | 2011-10-17 | 2012-06-06 | 福建工程学院 | Pile forming device for cast-in-situ concrete thin-wall piles |
| CN204023565U (en) * | 2014-07-29 | 2014-12-17 | 福建永强岩土股份有限公司 | The long spiral thin wall filling pile of cavity pipe casing |
-
2014
- 2014-07-29 CN CN201410365214.9A patent/CN104110033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62296009A (en) * | 1986-06-12 | 1987-12-23 | Seiji Tsuji | Piling work |
| CN2108166U (en) * | 1991-07-27 | 1992-06-24 | 广东省鹤山县建筑设计院 | Dual pipe drilling tools with single acting local reverse recycle |
| CN102182404A (en) * | 2011-03-10 | 2011-09-14 | 李征 | Cast-in-situ tubular pile rotary drilling rig capable of forming annular hole and piling method |
| CN202265822U (en) * | 2011-10-17 | 2012-06-06 | 福建工程学院 | Pile forming device for cast-in-situ concrete thin-wall piles |
| CN204023565U (en) * | 2014-07-29 | 2014-12-17 | 福建永强岩土股份有限公司 | The long spiral thin wall filling pile of cavity pipe casing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695757A (en) * | 2020-12-21 | 2021-04-23 | 蒲禾 | Super slow setting concrete secant pile casing drill sleeve |
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| Publication number | Publication date |
|---|---|
| CN104110033B (en) | 2016-04-20 |
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