CN103590396A - Pre-fabricated pipe pile structure with inner supports added - Google Patents
Pre-fabricated pipe pile structure with inner supports added Download PDFInfo
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- CN103590396A CN103590396A CN201310612604.7A CN201310612604A CN103590396A CN 103590396 A CN103590396 A CN 103590396A CN 201310612604 A CN201310612604 A CN 201310612604A CN 103590396 A CN103590396 A CN 103590396A
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Abstract
The invention relates to a pre-fabricated pipe pile structure with inner supports added. The pre-fabricated pipe pile structure with the inner supports added comprises a pre-fabricated pipe pile and reinforced concrete inner supporting blocks. Inner supporting holes are formed in a pile body of the pre-fabricated pipe pile, the reinforced concrete inner supporting blocks are arranged inside the inner supporting holes, the reinforced concrete inner supporting blocks are distributed along the whole pre-fabricated pipe pile, a set of reinforced concrete inner supporting blocks is arranged at the position which is three meters away from the pile top of the pre-fabricated pipe pile, and the number of the reinforced concrete inner supporting blocks in one set is four; the reinforced concrete inner supporting blocks in each set are symmetrically distributed in a front-and-back and left-and-right mode along the cross section of the pile body of the pre-fabricated pipe pile, and two to four sets of reinforced concrete inner supporting blocks are arranged downwards from the three-meter position of the pile top at the interval of 2 meters; the last set of reinforced concrete inner supporting blocks is one meter away from the bottom of the prefabricated pipe pile. The pre-fabricated pipe pile structure has the advantages of obviously enhancing the end bearing capacity of the pile, improving the bearing capacity of a foundation, being capable of greatly saving the project cost and shortening the construction period.
Description
Technical field
The present invention relates to a kind of prefabricated tubular pile structure that adds inner support, belong to foundation consolidating technology field in construction project industry.
Background technology
Along with the rapid growth of Chinese national economy, builing industry has also obtained vigorous growth, and each metropolis high building stands in great numbers, and large public building, industrial premises continue to bring out.For improving supporting capacity or the strengthening soft foundation of natural ground, to meet the requirement of building upper load, guarantee the workmanship of building (structure), the use of pile foundation is day by day universal, pre-cast pipe pile plinth, as a kind of technical measures of supporting capacity that improve ground, was widely applied in building operations in recent years.
Common prefabricated tubular pile stake surface is all smooth, when squeezing into or be pressed into preformed pile, and moisture can sharply the increasing of hole in foundation soil, thus reduce pile side resistance and end resistance, reduced the bearing capacity of stake.
, there is a kind of novel pile foundation technology-compacted bearing disk pile technology in eighties of last century the nineties.On former common filling pile basis, to increase force bearing disk to be set or to arrange branch to form.This know-why is by friction pile common in relative soft layer or friction end bearing pile, within the scope of limited pile body soil layer, by being set, force bearing disk or load branch improve bearing capacity of pile tip, the bearing capacity of pile tip that makes full use of each layer soil body within the scope of pile body improves bearing capacity of single pile, reach the object that improves folk prescription bearing capacity of concrete-filled, thereby save cost or reduction of erection time, but this technology can only apply in castinplace pile, and the scope of application is comparatively limited to.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, a kind of prefabricated tubular pile structure that adds inner support is provided, add after the preformed pile pile sinking of inner support, the inner support of squeezing into the soil body can play the effect of similar branch, can significantly increase the end load of stake; Can significantly improve the ultimate bearing capacity of single pile of preformed pile.
According to technical scheme provided by the invention, the prefabricated tubular pile structure that adds inner support comprises prefabricated tubular pile and steel concrete internal supporting block; In the pile body of described prefabricated tubular pile, be provided with several inner support holes, in several inner support holes, be respectively arranged with steel concrete internal supporting block, each cross section is one group by 4 steel concrete internal supporting blocks, and every group of steel concrete internal supporting block is symmetrical all around along prefabricated tubular pile cross section.
As a further improvement on the present invention, describedly at the 3m place, stake top apart from prefabricated tubular pile, be provided with first group of steel concrete internal supporting block, from the stake of prefabricated tubular pile, push up 3m down every 2m place, be provided with two～tetra-groups of steel concrete internal supporting blocks; Bottom distance from one group of steel concrete internal supporting block of last setting from prefabricated tubular pile is 1m.
As a further improvement on the present invention, described steel concrete internal supporting block supports in the pile body surrounding soil of described prefabricated tubular pile, and steel concrete internal supporting block exposes the outer 120mm of prefabricated tubular pile tube wall.
The described long 10m of stake apart from prefabricated tubular pile, thickness of pipe wall 110mm, caliber 600mm.
As a further improvement on the present invention, described steel concrete inner support block length 230mm, wide 120mm, thick 80mm.Described steel concrete internal supporting block is reinforced concrete member.
This is practical newly compared with prior art adds after the preformed pile pile sinking of inner support, owing to squeezing into the inner support of the soil body and can play the effect of similar branch, improves foundation capability, can save greatly construction costs, reduction of erection time.
Accompanying drawing explanation
Fig. 1 is side-looking and the sectional drawing of structure of the present invention.
Fig. 2 is the A-A cross section view of Fig. 1.
Fig. 3 is that structure pile body of the present invention is squeezed into ground inner support and overhanged rear side viewing.
Fig. 4 is the B-B cross section view of Fig. 3.
The specific embodiment
Below in conjunction with concrete accompanying drawing, the invention will be further described.
As shown in Figure 1 to 4: the prefabricated tubular pile structure that adds inner support comprises prefabricated tubular pile 1 and steel concrete internal supporting block 2.
In the pile body of described prefabricated tubular pile 1, be provided with several inner support holes, in several inner support holes, be respectively arranged with steel concrete internal supporting block 2, every four steel concrete internal supporting blocks 2 are one group, and every group of steel concrete internal supporting block is symmetrical all around along prefabricated tubular pile 1 cross section.
Described steel concrete internal supporting block 2 is reinforced concrete member; Described steel concrete internal supporting block 2 distributes along whole prefabricated tubular pile.
Shown in Fig. 1: the 3m place, stake top apart from prefabricated tubular pile 1, be provided with first group of steel concrete internal supporting block 2-1, every group is four and is symmetrical all around; From stake top 3m, down every 2m, be provided with two groups of steel concrete internal supporting blocks; Be respectively second group of steel concrete internal supporting block 2-2 and the 3rd group of steel concrete internal supporting block 2-3; A stake bottom from the 3rd group of steel concrete internal supporting block 2-3 of last setting from prefabricated tubular pile 1 is provided with the 4th group of steel concrete internal supporting block 2-4 apart from 1m.The described long 10m of stake apart from prefabricated tubular pile 1, thickness of pipe wall 110mm, caliber 600mm; The long 230mm of described steel concrete internal supporting block 2, wide 120mm, thick 80mm.
Described steel concrete internal supporting block 2 supports in the pile body surrounding soil of prefabricated tubular pile 1, pile body is squeezed into ground, pile sinking reaches after depth requirements, as shown in Fig. 3～Fig. 4: utilize equipment that steel concrete internal supporting block 2 is all supportted in pile peripheral earth, steel concrete internal supporting block 2 exposes the outer 120mm of prefabricated tubular pile tube wall.
This is practical is newly in the manufacturing process of prefabricated tubular pile, after overhanging for fear of inner support, pile body discontinuity cause pile body inclining and differential settlement, the inner support of everywhere is symmetrical all around along stake cross section; After pile sinking, utilize equipment that inner support is all supportted in a surrounding soil.Owing to squeezing into the inner support of the soil body and can play the effect of similar branch, can significantly increase the end load of stake.Through example calculation, add the prefabricated tubular pile of inner support and compare with the prefabricated tubular pile that does not add inner support, in the situation that single pile cost has increased by 2.5%, vertical ultimate bearing capacity of single pile has improved 32.3%, thereby can save greatly construction costs or reduction of erection time.
Claims (6)
1. a prefabricated tubular pile structure that adds inner support, is characterized in that: comprise prefabricated tubular pile (1) and steel concrete internal supporting block (2); In the pile body of described prefabricated tubular pile (1), be provided with several inner support holes, in several inner support holes, be respectively arranged with steel concrete internal supporting block (2), every two steel concrete internal supporting blocks (2) are one group, and every group of steel concrete internal supporting block is symmetrical all around along prefabricated tubular pile (1) cross section.
2. a kind of prefabricated tubular pile structure that adds inner support as claimed in claim 1, it is characterized in that: described at the 3m place, stake top apart from prefabricated tubular pile (1), be provided with first group of steel concrete internal supporting block, from the stake top 3m of prefabricated tubular pile (1), down every 2m place, be provided with two～tetra-groups of steel concrete internal supporting blocks; Bottom distance from one group of steel concrete internal supporting block of last setting from prefabricated tubular pile (1) is 1m.
3. a kind of prefabricated tubular pile structure that adds inner support as claimed in claim 1, it is characterized in that: described steel concrete internal supporting block (2) supports in the pile body surrounding soil of described prefabricated tubular pile (1), steel concrete internal supporting block (2) exposes the outer 120mm of prefabricated tubular pile tube wall.
4. a kind of prefabricated tubular pile structure that adds inner support as claimed in claim 1, is characterized in that: described in
Apart from the long 10m of stake of prefabricated tubular pile (1), thickness of pipe wall 110mm, caliber 600mm.
5. a kind of prefabricated tubular pile structure that adds inner support as claimed in claim 1, is characterized in that: described in
The long 230mm of steel concrete internal supporting block (2), wide 120mm, thick 80mm.
6. a kind of prefabricated tubular pile structure that adds inner support as claimed in claim 1, is characterized in that: described in
Steel concrete internal supporting block (2) is reinforced concrete member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612604.7A CN103590396A (en) | 2013-11-26 | 2013-11-26 | Pre-fabricated pipe pile structure with inner supports added |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612604.7A CN103590396A (en) | 2013-11-26 | 2013-11-26 | Pre-fabricated pipe pile structure with inner supports added |
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| Publication Number | Publication Date |
|---|---|
| CN103590396A true CN103590396A (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310612604.7A Pending CN103590396A (en) | 2013-11-26 | 2013-11-26 | Pre-fabricated pipe pile structure with inner supports added |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090847A (en) * | 2017-06-29 | 2017-08-25 | 国家电网公司 | A kind of overhead transmission line concrete precast pipe pile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398333Y (en) * | 1999-11-02 | 2000-09-27 | 刘次西 | Pile body containing thorn pile |
| JP2002348859A (en) * | 2001-05-29 | 2002-12-04 | Taiheiyo Cement Corp | Prefabricated pile in which diameter can be expanded and its execution method |
| CN2584668Y (en) * | 2002-08-28 | 2003-11-05 | 天津大学 | Concrete vertical bearing pile with overhanging wedge fin |
| JP2004293090A (en) * | 2003-03-26 | 2004-10-21 | Mlt Soil:Kk | Friction pile for weak ground and construction method for friction pile |
| CN1730838A (en) * | 2005-08-04 | 2006-02-08 | 张文巨 | Longitudinally inserted horizontally wedged construction pile and its construction method |
| CN203625896U (en) * | 2013-11-26 | 2014-06-04 | 江苏中设工程咨询集团有限公司 | Internally-supported prefabricated pipe pile structure |
-
2013
- 2013-11-26 CN CN201310612604.7A patent/CN103590396A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398333Y (en) * | 1999-11-02 | 2000-09-27 | 刘次西 | Pile body containing thorn pile |
| JP2002348859A (en) * | 2001-05-29 | 2002-12-04 | Taiheiyo Cement Corp | Prefabricated pile in which diameter can be expanded and its execution method |
| CN2584668Y (en) * | 2002-08-28 | 2003-11-05 | 天津大学 | Concrete vertical bearing pile with overhanging wedge fin |
| JP2004293090A (en) * | 2003-03-26 | 2004-10-21 | Mlt Soil:Kk | Friction pile for weak ground and construction method for friction pile |
| CN1730838A (en) * | 2005-08-04 | 2006-02-08 | 张文巨 | Longitudinally inserted horizontally wedged construction pile and its construction method |
| CN203625896U (en) * | 2013-11-26 | 2014-06-04 | 江苏中设工程咨询集团有限公司 | Internally-supported prefabricated pipe pile structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107090847A (en) * | 2017-06-29 | 2017-08-25 | 国家电网公司 | A kind of overhead transmission line concrete precast pipe pile |
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Application publication date: 20140219 |