CN205475208U - Control two construction structures that protect of straightness that hangs down - Google Patents
Control two construction structures that protect of straightness that hangs down Download PDFInfo
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- CN205475208U CN205475208U CN201620133026.8U CN201620133026U CN205475208U CN 205475208 U CN205475208 U CN 205475208U CN 201620133026 U CN201620133026 U CN 201620133026U CN 205475208 U CN205475208 U CN 205475208U
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- casing
- section
- thick bamboo
- protect
- outer casing
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Abstract
The utility model relates to a technical field of bored concrete pile construction discloses control two construction structures that protect of straightness that hangs down, outer in arranging the encirclement ring at stake four the cross cross arrangement's in position setpoint protects a section of thick bamboo and protects a section of thick bamboo in and, protect a vertical subsidence outward in ground, and the outer inner wall that protects a section of thick bamboo aligns four the position of setpoint is the protruding locating plate that is equipped with respectively, and on the inner wall that protects a section of thick bamboo was outward connected to locating plate inner, the outer end of locating plate was along protecting extending of a section of thick bamboo outward radially inwards, interior protect a section of thick bamboo sink to down outer protect a section of thick bamboo in, and the surface that protects including the butt respectively tin of the outer end of four locating plates. Protect a section of thick bamboo outward and protect section of thick bamboo effect simultaneously in and, reduce the outer section of thick bamboo that protects and protect a section of thick bamboo in and at the frictional resistance of transferring and withdraw the in -process and protect a section of thick bamboo and protect a section of thick bamboo outward and can utilize many times in, reduce construction cost, utilize four locating plates internally to protect a section of thick bamboo and restrict the location for the interior section of thick bamboo that protects a central point and stake hole central point coincidence in, protects pinpointing of a section of thick bamboo in the realization, effectually guarantees a quality.
Description
Technical field
This utility model relates to the technical field of filling pile construction, particularly relates to control double casing constructing structures of perpendicularity.
Background technology
Along with the propelling of Urbanization in China, harbour, coastal area, the demand of highway bridge construction increase day by day.This kind of engineering foundation generally uses major diameter, ultra-deep (more than 40m) cast-in-situ bored pile, and for coastal area, this type of engineering would ordinarily be encountered loose fill, stream (soft) moulds shape muck soil, sand, the poor stratas such as boulder bed, collapse hole for avoiding producing hole wall when drilling and forming hole, the phenomenons such as undergauge, ensure pile quality, in prior art, the forming hole method of large diameter bored pile construction generally uses and enters profound cylinder-wall protecting construction under vibration hammer, but, profound casing is in sinking watching, the bottom of casing is affected by Different Strata lithology, easily produce the phenomenon of position skew, therefore, in work progress, generally require and repeated to pull out, sink to casing, even casing bury the requirement that cannot meet specification to casing perpendicularity underground.
It addition, casing is in sinking watching, casing is the deepest, and its suffered frictional resistance is the biggest, and sinking then can be more difficult, and, profound casing is during sinking to, and its perpendicularity is difficult to ensure that, deviation easily occurs.
Utility model content
The purpose of this utility model be provide control perpendicularity double casing constructing structures, it is intended to enter in the presence of solving casing of the prior art difficulty and under enter the problem that deviation occurs in perpendicularity.
This utility model is realized in, control double casing constructing structures of perpendicularity, including the outer casing in the ring of encirclement being arranged in the anchor point that four, stake position decussation is arranged and interior casing, described outer casing vertical subsidence is in ground, and the position of four described anchor points of aligning inner of described outer casing is convexly equipped with location-plate respectively, the inner of described location-plate is connected on the inwall of described outer casing, and the outer end of described location-plate extends along the radial inward of described outer casing；Sink in described outer casing under described interior casing, and the outer end of four described location-plates is connected to the outer surface of described interior casing respectively.
Further, the interior casing central point of described interior casing overlaps with described stake position central point layout.
Further, the length of described interior casing is more than the length of described outer casing.
Further, the length of described outer casing be not more than described interior casing length 1/3.
Further, the internal diameter of described outer casing is than big more than the 20cm of internal diameter of described interior casing.
Further, there is deviation between outer casing central point and the described stake position central point of described outer casing.
Further, the upper end of the described outer casing after sinking extends in outside ground.
Further, the height of the described outer casing part above ground level after sinking is not less than 30cm.
Further, described location-plate is tabular.
Compared with prior art, in double casing constructing structures that this utility model provides, outer casing and interior casing act on simultaneously, can effectively reduce outer casing and interior casing frictional resistance during transferring and regaining, interior casing and outer casing can repeatedly be utilized, greatly reduce construction cost；Four internal casings of location-plate are utilized to carry out limiting location so that the interior casing central point of interior casing overlaps with stake holes central point, it is achieved being accurately positioned of internal casing；The sinking of outer casing so that frictional resistance fashionable under interior casing is less, easily facilitates the sinking of interior casing, also can be relatively easy to control the perpendicularity of interior casing simultaneously, effectively ensure pile quality.
Accompanying drawing explanation
Fig. 1 is the cut-away illustration of double casing constructing structures that this utility model embodiment provides；
Fig. 2 is the outer casing schematic top plan view with interior casing position relationship of this utility model embodiment offer；
Fig. 3 is the schematic top plan view of double casing constructing structures that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
With reference to shown in Fig. 1～Fig. 3, for a preferred embodiment of this utility model offer.
Double casing constructing structures of the control perpendicularity that the present embodiment provides, may be used for the profound casing that sinks so that profound casing is during sinking, and frictional resistance is little and does not haves deviation.
Double casing constructing structures of the control perpendicularity that the present embodiment provides, including outer casing 12 and interior casing 11, the vertical subsidence of outer casing 12 is in ground, wherein, when carrying out measure of pile position location at the scene, pre-set the anchor point that four decussations are arranged, the central point of four anchor point decussations is stake position central point, and as shown in Fig. 2 and Fig. 3, four anchor points are A, B, C, D respectively, wherein, AC line, BD line, and mutually decussation, the central point intersected between two lines is O, then be stake position central point.
Outer casing 12 under sink to four anchor points and surround in the ring of encirclement formed, and the position of four anchor points of aligning inner of outer casing 12 is convexly equipped with location-plate 13 respectively, the inner of location-plate 13 is connected on the inwall of outer casing 12, and the outer end of location-plate 13 extends along the radial inward of outer casing 12；Interior casing 11 sinks outside in casing 12, and the outer end of four location-plates 13 is connected to the outer surface of interior casing 11 respectively.
In double casing constructing structures of above-mentioned offer, outer casing 12 is as auxiliary casing, its positioning action sunk as interior casing 11；Interior casing 11 plays the effect intercepting the poor strata such as soft stratum and sandy soils, it is to avoid occur the phenomenons such as collapse hole, contracting strength and pile foundation displacement during later stage filling pile construction.Outer casing 12 and interior casing 11 act on simultaneously, can effectively reduce outer casing 12 and the interior casing 11 frictional resistance during transferring and regaining so that interior casing 11 and outer casing 12 can repeatedly utilize, and greatly reduce construction cost.
The double casing constructing structures controlling perpendicularity also have the advantage that
1), accurate positioning；Use outside for structure that outer casing 12 connecting inner is interior casing 11, before construction, first put down outer casing 12, then physical location is entered 12 times according to outer casing, utilizing four anchor points, be accurately positioned stake holes central point, four location-plates 13 recycling outer casing 12 inwall position interior casing 11 position, the interior casing central point making interior casing 11 overlaps with stake holes central point, it is achieved being accurately positioned of internal casing 11；
2), interior casing 11 sink easily, degree control is convenient；The sinking of outer casing 12 so that 11 times fashionable frictional resistances of interior casing are less, easily facilitates the sinking of interior casing 11, also can preferably be accurately positioned, and also can be relatively easy to control the perpendicularity of interior casing 11 simultaneously.
3), pile quality is effectively ensured；Interior casing 11 is used in combination with outer casing 12, can effectively ensure interior casing 11 perpendicularity, and then ensure pile body perpendicularity, it is ensured that pile quality.
The present embodiment additionally provides the construction method for double pile casings of above-mentioned control perpendicularity, and it includes following construction procedure:
1) carry out measure of pile position location, at the scene, the anchor point that four decussations are arranged is set；
2) outer casing 12 is entered under, vertical in the ring of encirclement of aforementioned four anchor point；
3), casing 11 in vertical subsidence in casing 12 outside, in keeping, the interior casing central point of casing 11 overlaps with stake position central point, and, the outer end of four location-plates 13 is connected on the outer surface of interior casing 11 respectively.
In the present embodiment, outer casing 12 is short casing, and interior casing 11 is long casing, say, that the length of interior casing 11 is more than the length of outer casing 12, and generally, the length of outer casing 12 is not more than 1/3rd of the length of interior casing 11.
It addition, outer casing 12 is interior through big more than the 20cm of internal diameter than interior casing 11, certainly, according to actual needs, as long as the internal diameter of outer casing 12 then may be used more than the diameter of interior casing 11.
In above-mentioned steps 2), (there is deviation between the o as in Fig. 2 and Fig. 3 ") and stake holes central point, it is allowed in more a certain degree of deviations in the outer casing central point of the outer casing 12 after sinking.
In step 2) in, use the vibration hammer outer casing 12 of sinking, and, the upper end of the outer casing 12 after sinking extends in outside ground, and the height of the part exceeded is not less than about 30cm.
After outer casing 12 has sunk, the part soil body in casing 12 except using rotary drilling rig to draw, generally, the soil body high for 1.5m in casing 12 except can drawing.
In the present embodiment, location-plate 13 is tabular, so, it is simple to the molding of location-plate 13, and the beneficially location-plate 13 positioning action to interior casing 11.It addition, location-plate 13 is disposed to extend along the radial direction of outer casing 12.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (9)
1. control double casing constructing structures of perpendicularity, it is characterized in that, including the outer casing in the ring of encirclement being arranged in the anchor point that four, stake position decussation is arranged and interior casing, described outer casing vertical subsidence is in ground, and the position of four described anchor points of aligning inner of described outer casing is convexly equipped with location-plate respectively, the inner of described location-plate is connected on the inwall of described outer casing, and the outer end of described location-plate extends along the radial inward of described outer casing；Sink in described outer casing under described interior casing, and the outer end of four described location-plates is connected to the outer surface of described interior casing respectively.
2. the as claimed in claim 1 double casing constructing structures controlling perpendicularity, it is characterised in that the interior casing central point of described interior casing overlaps with described stake position central point layout.
3. the double casing constructing structures controlling perpendicularity as claimed in claim 1 or 2, it is characterised in that the length of described interior casing is more than the length of described outer casing.
4. the double casing constructing structures controlling perpendicularity as claimed in claim 3, it is characterised in that the length of described outer casing is not more than the 1/3 of the length of described interior casing.
5. the double casing constructing structures controlling perpendicularity as claimed in claim 1 or 2, it is characterised in that the internal diameter of described outer casing is than big more than the 20cm of internal diameter of described interior casing.
6. the double casing constructing structures controlling perpendicularity as claimed in claim 1 or 2, it is characterised in that there is deviation between outer casing central point and the described stake position central point of described outer casing.
7. the double casing constructing structures controlling perpendicularity as claimed in claim 1 or 2, it is characterised in that the upper end of the described outer casing after sinking extends in outside ground.
8. the double casing constructing structures controlling perpendicularity as claimed in claim 7, it is characterised in that the height of the described outer casing part above ground level after sinking is not less than 30cm.
9. the double casing constructing structures controlling perpendicularity as claimed in claim 1 or 2, it is characterised in that described location-plate is tabular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620133026.8U CN205475208U (en) | 2016-02-22 | 2016-02-22 | Control two construction structures that protect of straightness that hangs down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620133026.8U CN205475208U (en) | 2016-02-22 | 2016-02-22 | Control two construction structures that protect of straightness that hangs down |
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| Publication Number | Publication Date |
|---|---|
| CN205475208U true CN205475208U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620133026.8U Expired - Fee Related CN205475208U (en) | 2016-02-22 | 2016-02-22 | Control two construction structures that protect of straightness that hangs down |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016911A (en) * | 2019-05-05 | 2019-07-16 | 中国建筑一局(集团)有限公司 | A kind of depth casing mechanical hole building bore forming technique |
| CN112160709A (en) * | 2020-01-04 | 2021-01-01 | 江西基业良工桩机制造有限公司 | Protect a section of thick bamboo and sink auxiliary device and have this auxiliary device's rig |
-
2016
- 2016-02-22 CN CN201620133026.8U patent/CN205475208U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016911A (en) * | 2019-05-05 | 2019-07-16 | 中国建筑一局(集团)有限公司 | A kind of depth casing mechanical hole building bore forming technique |
| CN112160709A (en) * | 2020-01-04 | 2021-01-01 | 江西基业良工桩机制造有限公司 | Protect a section of thick bamboo and sink auxiliary device and have this auxiliary device's rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |