CN214657174U - Building pile foundation - Google Patents
Building pile foundation Download PDFInfo
- Publication number
- CN214657174U CN214657174U CN202121054312.2U CN202121054312U CN214657174U CN 214657174 U CN214657174 U CN 214657174U CN 202121054312 U CN202121054312 U CN 202121054312U CN 214657174 U CN214657174 U CN 214657174U
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- Prior art keywords
- pile
- reinforcement cage
- pile foundation
- mounting groove
- building
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- 230000002787 reinforcement Effects 0.000 claims abstract description 50
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 49
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 239000004568 cement Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 13
- 238000009434 installation Methods 0.000 description 12
- 239000004746 geotextile Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The application relates to a building pile foundation which comprises a prefabricated outer pile, an inner pile and a reinforcement cage, wherein the top of the outer pile is provided with a mounting groove, and the reinforcement cage is coaxially fixed in the mounting groove; a plurality of reinforcing bars are movably installed on the steel reinforcement cage, and the outer piles are provided with abdicating holes corresponding to the reinforcing bars one to one; the inner pile is matched and inserted inside the steel reinforcement cage, and the reinforcing bar is forced to pass through the abdicating hole by the inner pile. The utility model provides a building pile foundation is through being fixed in the mounting groove with steel reinforcement cage to strike the inner pile and go into the mounting groove, the inner pile can force the enhancement strip to pass the hole of stepping down and insert the soil layer in the outer stake outside, thereby has improved the holding power of pile foundation in vertical face, has reduced the sunken possibility of pile foundation atress effectively.
Description
Technical Field
The application relates to the technical field of constructional engineering, especially, relate to a building pile foundation.
Background
The pile foundation is generally a deep foundation consisting of piles and pile caps connected to the piles or a single pile foundation connected by columns to the pile foundation, and is generally used to support and fix a building on a soft ground. Inside current building pile foundation was vertically buried underground in the soil layer usually, the pile foundation received the vertical decurrent power effort of building, however current building is mostly high-rise building, and weight is great, and the pile foundation uses easy atress after a period and sinks, leads to the pile foundation poor to the support effect of building.
SUMMERY OF THE UTILITY MODEL
In order to reduce the risk that the pile foundation atress is sunken, this application provides a building pile foundation.
The application provides a building pile foundation adopts following technical scheme:
a building pile foundation comprises a prefabricated outer pile, an inner pile and a reinforcement cage, wherein the top of the outer pile is provided with a mounting groove, and the reinforcement cage is coaxially fixed in the mounting groove; the steel reinforcement cage is movably provided with a plurality of reinforcing strips, and the outer piles are provided with abdicating holes corresponding to the reinforcing strips one to one; the inner pile is inserted inside the steel reinforcement cage in a matching mode, and the reinforcing bar is forced to penetrate through the yielding hole by the inner pile.
By adopting the technical scheme, the outer pile and the inner pile are both precast piles, the reinforcement cage is coaxially fixed in the mounting groove after the outer pile is inserted into the ground, and then the inner pile is inserted into the mounting groove; the interior stake gets into and forces the enhancement strip to outwards remove after the mounting groove gradually, strengthens the soil layer that the strip passed the hole of stepping down and inserted the outer stake outside at last, has improved the holding power of pile foundation in the vertical face, can reduce the sunken possibility of pile foundation atress effectively, makes the pile foundation have good supporting effect to the building.
Optionally, sleeves corresponding to the yielding holes one to one are fixed on the reinforcement cage, and one end, close to the outer pile, of each sleeve is higher than one end, away from the outer pile, of each sleeve; the reinforcing strip is movably inserted into the sleeve.
By adopting the technical scheme, the sleeve is arranged for setting the moving direction of the reinforcing strip, so that the reinforcing strip can only move in the direction close to or far away from the abdicating hole; in addition, the sleeve pipe slope sets up, and the sleeve pipe is higher than the one end that deviates from the outer pile near the one end of outer pile, when the outer pile is in vertical state, can make each enhancement strip remove to the direction that is close to outer pile axis under the action of gravity of self to inside making each enhancement strip get into the outer pile, the condition of interference appears in the in-process enhancement strip that reduces outer pile and ground or soil layer that inserts ground.
Optionally, one end of the reinforcing bar close to the outer pile is provided with a limiting part, and the outer diameter of the limiting part is larger than the inner diameter of the sleeve.
Through adopting foretell technical scheme, when the enhancement strip received self action of gravity to the direction that is close to the outer stake axis when removing, the setting of spacing portion can reduce the enhancement strip and break away from the sleeve pipe completely and drop to the condition of mounting groove tank bottom, reduces the reinforcing cage and the possibility that the interior stake can't get into the mounting groove completely and firm the installation in the mounting groove.
Optionally, an arc-shaped plate is arranged at one end of each reinforcing strip, which faces to the adjacent reinforcing strip, and when the limiting portion abuts against the sleeve, the adjacent arc-shaped plates abut against each other, and all the arc-shaped plates form a circular ring together.
By adopting the technical scheme, the arrangement of the arc-shaped plates improves the contact area between the inner piles and the reinforcing strips, and the reinforcing strips are convenient to push to move outwards through the inner piles; in addition, when the limiting part is abutted to the sleeve, the adjacent arc-shaped plates are abutted to each other, so that the condition that the arc-shaped plates are overlapped with each other can be reduced, and the inner pile can better push the reinforcing strips to move outwards.
Optionally, a cone is arranged at the bottom end of the inner pile, and the outer diameter of the cone is gradually reduced from one end close to the inner pile to the other end.
Through adopting foretell technical scheme, through setting up the cone, the little terminal surface of cone can get into inside the ring that all arcs enclosed when inserting the interior stake mounting groove to promote each enhancement strip outwards to remove and insert the soil layer in the exterior stake outside gradually.
Optionally, an annular block is circumferentially arranged on the side wall of the mounting groove, and the annular block is close to the bottom of the mounting groove; the annular block is provided with a positioning hole for positioning the reinforcement cage.
Through adopting foretell technical scheme, after the reinforcing bar of steel reinforcement cage bottom inserted the locating hole, can play the effect of positioning reinforcement cage, set up the stiffener on steel reinforcement cage after making steel reinforcement cage fixed can with the hole one-to-one of stepping down, improved the convenience of steel reinforcement cage installation.
Optionally, the side wall of the mounting groove is fixed with geotextile, and the geotextile covers the yielding hole.
Through adopting foretell technical scheme, when the outer pile inserts the soil layer, the setting of geotechnological cloth can reduce the soil block on soil layer and fall into the possibility of mounting groove from the hole of stepping down to make steel reinforcement cage and inner pile can install in the mounting groove completely.
Optionally, a pouring groove for pouring cement is formed in the top of the inner pile, and a plurality of pouring holes communicated with the pouring groove are formed in the outer side of the inner pile.
Through adopting foretell technical scheme, after the inner pile inserted the mounting groove, through pouring cement into the pouring basin, cement got into the steel reinforcement cage in the inner pile outside through the hole that fills, can make outer stake, steel reinforcement cage and inner pile become an organic whole after last cement solidifies to increased this building pile foundation's whole bearing capacity, can play the effect of firm support building.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by fixing the reinforcement cage in the mounting groove and knocking the inner pile into the mounting groove, the inner pile can force the reinforcing strips to pass through the abdicating holes and be inserted into the soil layer outside the outer pile, so that the supporting force of the pile foundation in the vertical plane is improved, and the possibility of the pile foundation sinking under the stress is effectively reduced;
2. by obliquely arranging the sleeve, each reinforcing strip can completely enter the outer pile under the action of the gravity of the reinforcing strip, so that the interference between the reinforcing strip and the ground or a soil layer in the process of inserting the outer pile into the ground is reduced;
3. after the interior pile inserts the mounting groove, through pouring into cement in to the pouring basin, can make outer stake, steel reinforcement cage and interior pile become an organic whole, increased this building pile foundation's whole bearing capacity, can play the effect that stabilizes the support building.
Drawings
FIG. 1 is a partial cross-sectional view of the overall structure in an embodiment of the present application;
FIG. 2 is a partial cross-sectional view of an outer pile in an embodiment of the present application;
FIG. 3 is a schematic structural view of a reinforcement cage according to an embodiment of the present application;
fig. 4 is an enlarged view at a in fig. 3, mainly embodying the structure of the sleeve and the reinforcing bar.
Description of reference numerals: 1. outer piles; 11. mounting grooves; 111. geotextile; 12. a hole of abdication; 13. a ring block; 131. positioning holes; 2. a reinforcement cage; 21. a first reinforcing bar; 22. a second reinforcing bar; 23. a reinforcing strip; 231. an arc-shaped plate; 232. a limiting part; 24. a sleeve; 3. internal piling; 31. a cone; 32. pouring a tank; 33. and (6) pouring a hole.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a building pile foundation.
Referring to fig. 1 and 2, the building pile foundation comprises a prefabricated outer pile 1, an inner pile 3 and a reinforcement cage 2, wherein the top of the outer pile 1 is provided with a mounting groove 11 which is coaxial with the outer pile 1 and used for mounting the reinforcement cage 2 and the inner pile 3. A plurality of hole groups are arranged on the outer side of the outer pile 1, and the hole groups are arranged at equal intervals along the extension direction of the outer pile 1; each hole group comprises a plurality of abdicating holes 12 which are uniformly distributed around the central axis of the outer pile 1, and all the abdicating holes 12 are communicated with the abdicating groove; each of the abdicating holes 12 is covered with a geotextile 111, and the geotextile 111 is fixed on the inner side wall of the installation groove 11 and blocks the abdicating hole 12, so as to reduce the possibility that soil blocks fall into the installation groove 11 from the abdicating hole 12 when the outer pile 1 is inserted into the ground.
Referring to fig. 2, an annular block 13 is fixed on the inner side wall of the installation groove 11, and the annular block 13 is close to the bottom of the installation groove 11; the annular block 13 is provided with a plurality of positioning holes 131 along the axial direction of the annular block, and all the positioning holes 131 are uniformly distributed around the axial direction of the annular block 13.
Referring to fig. 2 and 3, the reinforcement cage 2 includes a plurality of first reinforcing bars 21 vertically arranged and a plurality of second reinforcing bars 22 horizontally arranged, wherein adjacent first reinforcing bars 21 are spaced apart from each other and arranged in a circular shape, and the adjacent first reinforcing bars 21 are fixedly connected to each other by the second reinforcing bars 22. The first reinforcing bars 21 are in one-to-one correspondence with the positioning holes 131, and when the reinforcement cage 2 is installed in the installation groove 11, the bottom ends of the first reinforcing bars 21 can be inserted into the corresponding positioning holes 131, so that the reinforcement cage 2 is stably installed in the installation groove 11.
Referring to fig. 4, the second reinforcing bars 22 are fixed with sleeves 24, the sleeves 24 are hollow tubes, and each sleeve 24 is coincident with the radial line of the reinforcement cage 2; the one end that sleeve pipe 24 deviates from 2 axis of steel reinforcement cage is fixed in second reinforcing bar 22 through the welded mode, and the sleeve pipe 24 is close to 2 axis of steel reinforcement cage one end highly be less than the one end that sleeve pipe 24 deviates from 2 axis of steel reinforcement cage.
Referring to fig. 4, a reinforcing bar 23 is movably inserted into the sleeve 24, and the axial length of the reinforcing bar 23 is greater than that of the sleeve 24; one end of the reinforcing bar 23, which is far away from the central axis of the steel reinforcement cage 2, is provided with a limiting part 232, and the outer diameter of the limiting part 232 is larger than the inner diameter of the sleeve 24 and is used for limiting the reinforcing bar 23 to be separated from the sleeve 24; the reinforcing bar 23 is urged by its own weight against the stopper 232 of the sleeve 24. The arc-shaped plates 231 are fixed at one end of each reinforcing bar 23 close to the central axis of the steel reinforcement cage 2, when the limiting parts 232 are abutted to the sleeve 24, the arc-shaped plates 231 positioned in the same horizontal plane are abutted to each other, and all the arc-shaped plates 231 surround a circular ring together.
Referring to fig. 1 and 4, a cone 31 is arranged at the bottom end of the inner pile 3, the outer diameter of the cone 31 is gradually reduced from one end close to the inner pile 3 to the other end, when the inner pile 3 is inserted into the installation groove 11, the cone 31 is firstly inserted into a circular ring surrounded by all the arc-shaped plates 231, the inner pile 3 continues to move downwards, the cone 31 can push each arc-shaped plate 231 to move in a direction away from the central axis of the reinforcement cage 2, and finally the limiting part 232 penetrates through the geotextile 111 and is inserted into a soil layer outside the outer pile 1, so that the supporting force of the pile foundation in a vertical plane is improved, and the possibility that the pile foundation sinks under the stress is effectively reduced; in order to facilitate the limit part 232 to pierce the geotextile 111, one end of the limit part 232 departing from the reinforcing strip 23 is set to be a tip end in the embodiment of the application.
Referring to fig. 1, a pouring groove 32 for pouring cement is formed at the top of an inner pile 3, and a plurality of pouring holes 33 communicated with the pouring groove 32 are formed at the outer side of the inner pile 3; after installing in mounting groove 11 in proper order, through pouring into cement to pouring into groove 32 in steel reinforcement cage 2 and inner pile 3, cement gets into steel reinforcement cage 2 in the 3 outsides of inner pile through pouring into hole 33, can make outer pile 1, steel reinforcement cage 2 and inner pile 3 become an organic whole after cement solidifies at last.
The implementation principle of the building pile foundation in the embodiment of the application is as follows:
the outer pile 1 and the inner pile 3 of the building pile foundation are both precast piles, and after a pile hole is dug in advance on the ground by a constructor, the outer pile 1 can be knocked into the pile hole by means of pile driving equipment, and then the reinforcement cage 2 is installed in the installation groove 11; during installation, the first reinforcing steel bar 21 can be inserted into the positioning hole 131 by rotating the reinforcement cage 2, so that the installation position of the reinforcement cage 2 is fixed; finally, the inner pile 3 is inserted into the reinforcement cage 2, and the arc-shaped plate 231 is gradually forced to move outwards in the installation process of the inner pile 3, so that the reinforcing strips 23 are inserted into the soil layer outside the outer pile 1, the supporting force of the pile foundation in the vertical plane is improved, and the possibility of sinking of the pile foundation under the stress is effectively reduced; and finally, cement is poured into the pouring groove 32, the outer pile 1, the inner pile 3 and the reinforcement cage 2 are integrated after the cement is solidified, the integral bearing capacity of the building pile foundation is increased, and the effect of stably supporting the building can be achieved.
The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A building pile foundation which is characterized in that: the pile comprises a prefabricated outer pile (1), an inner pile (3) and a reinforcement cage (2), wherein the top of the outer pile (1) is provided with a mounting groove (11), and the reinforcement cage (2) is coaxially fixed in the mounting groove (11); a plurality of reinforcing bars (23) are movably mounted on the reinforcement cage (2), and the outer pile (1) is provided with abdicating holes (12) corresponding to the reinforcing bars (23) one by one; the internal pile (3) is inserted in the steel reinforcement cage (2) in a matching mode, and the reinforcing bar (23) is forced to penetrate through the yielding hole (12) by the internal pile (3).
2. The building pile foundation of claim 1, wherein: sleeves (24) which correspond to the yielding holes (12) one by one are fixed on the steel reinforcement cage (2), and one end, close to the outer pile (1), of each sleeve (24) is higher than one end, away from the outer pile (1), of each sleeve (24); the reinforcing strip (23) is movably inserted into the sleeve (24).
3. The building pile foundation of claim 2, wherein: one end of the reinforcing bar (23) close to the outer pile (1) is provided with a limiting part (232), and the outer diameter of the limiting part (232) is larger than the inner diameter of the sleeve (24).
4. The building pile foundation of claim 3, wherein: one end, facing to the adjacent reinforcing strip (23), of each reinforcing strip (23) is provided with an arc-shaped plate (231), when the limiting portion (232) abuts against the sleeve (24), the adjacent arc-shaped plates (231) abut against each other, and all the arc-shaped plates (231) enclose a circular ring together.
5. The building pile foundation of claim 4, wherein: the bottom of interior stake (3) is equipped with cone (31), the external diameter of cone (31) reduces to the other end by the one end that is close to interior stake (3) gradually.
6. The building pile foundation of claim 1, wherein: an annular block (13) is arranged on the side wall of the mounting groove (11) in the circumferential direction, and the annular block (13) is close to the bottom of the mounting groove (11); the annular block (13) is provided with a positioning hole (131) for positioning the reinforcement cage (2).
7. The building pile foundation of claim 1, wherein: the side wall of mounting groove (11) is fixed with geotechnique's cloth (111), geotechnique's cloth (111) cover in hole of stepping down (12).
8. The building pile foundation of claim 1, wherein: the top of interior stake (3) is seted up and is used for pouring into the pouring basin (32) of cement, the outside of interior stake (3) is equipped with a plurality of intercommunication in the hole of pouring (33) in pouring into of pouring basin (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054312.2U CN214657174U (en) | 2021-05-17 | 2021-05-17 | Building pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054312.2U CN214657174U (en) | 2021-05-17 | 2021-05-17 | Building pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214657174U true CN214657174U (en) | 2021-11-09 |
Family
ID=78484663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054312.2U Expired - Fee Related CN214657174U (en) | 2021-05-17 | 2021-05-17 | Building pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214657174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404880A (en) * | 2022-09-28 | 2022-11-29 | 山西冶金岩土工程勘察有限公司 | Supporting pile construction process |
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2021
- 2021-05-17 CN CN202121054312.2U patent/CN214657174U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115404880A (en) * | 2022-09-28 | 2022-11-29 | 山西冶金岩土工程勘察有限公司 | Supporting pile construction process |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |