CN212742515U - Firm pile foundation structure - Google Patents
Firm pile foundation structure Download PDFInfo
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- CN212742515U CN212742515U CN202021358813.5U CN202021358813U CN212742515U CN 212742515 U CN212742515 U CN 212742515U CN 202021358813 U CN202021358813 U CN 202021358813U CN 212742515 U CN212742515 U CN 212742515U
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Abstract
The utility model relates to a firm pile foundation structure relates to the field of pile foundation structure, and it is including adopting concrete placement in pile foundation body, a plurality of laminating in pile foundation body outer wall that the stake hole formed in the armguard of pile foundation body outer wall, inlay locate pile foundation internal steel reinforcement cage one and be used for reducing the hole top that stake hole outside debris fell into the stake hole and protect a section of thick bamboo, and is a plurality of the armguard cladding is located the downthehole outer wall of stake in the pile foundation body, one of steel reinforcement cage includes a plurality of support reinforcement one that encircle pile foundation body the central axis and is the spiral hoop that the spiral encircles in pile foundation body the central axis setting, support reinforcement one is vertical setting and its fixed connection in spiral hoop. The application has the effect of relatively better strength.
Description
Technical Field
The application relates to the field of pile foundation structures, in particular to a stable pile foundation structure.
Background
The pile foundation is a deep foundation consisting of piles and pile bearing platforms (bearing platforms for short) connected with the pile tops or a single pile foundation connected with the pile foundation by columns, and is called the pile foundation for short. If the pile body is completely buried in the soil and the bottom surface of the bearing platform is contacted with the soil body, the pile body is called a low bearing platform pile foundation; when the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap pile foundation. Building pile foundations are typically low cap pile foundations. In high-rise buildings, pile foundations are widely applied.
The existing pile foundation is mainly divided into a precast pile and a cast-in-place pile according to a construction mode, when the cast-in-place pile is constructed, a pile hole needs to be drilled on a construction site, a reinforcement cage is placed into the pile hole after the pile hole reaches the required depth, and finally concrete is poured to form the pile foundation.
To the correlation technique among the above-mentioned, the inventor thinks there is the relatively not good defect of relevant pile foundation intensity, in the work progress, the pore wall in stake hole can take place to collapse or the ground drops to appear and sneaks into inside the pile foundation because of geological reasons, and stake downthehole relevant steel reinforcement cage generally adopts a plurality of reinforcing bar ring vertical distribution, then encircle the reinforcing bar ring with a plurality of vertical settings and connect, pour at last, make after pouring the completion, the wholeness of steel reinforcement cage is relatively not good, finally make the pile foundation construction accomplish the whole intensity of back relatively not good.
SUMMERY OF THE UTILITY MODEL
The application provides a firm pile foundation structure adopts following technical scheme:
the utility model provides a firm pile foundation structure, includes that adopt concrete placement in pile foundation body, a plurality of laminating in pile foundation body outer wall that the stake hole formed protect the arm, inlay the hole top pile casing that locates pile foundation internal reinforcement cage one and be used for reducing stake hole outside debris and fall into the stake hole, it is a plurality of protect the arm cladding and lie in the downthehole outer wall of stake in pile foundation body, one of reinforcement cage includes a plurality of support reinforcement one that encircle pile foundation body the central axis and is the spiral hoop that the spiral encircles in pile foundation body the central axis setting, support reinforcement one is vertical setting and its fixed connection in spiral hoop.
By adopting the technical scheme, when the pile hole drilling device is used, after the pile hole drilling is completed, the plurality of the protecting arms are sequentially attached to the inner wall of the pile hole to support and isolate the inner wall of the pile hole, finally, the hole top protecting cylinder is arranged on the protecting arm at the uppermost end to isolate the upper opening edge of the pile hole, so that the possibility that sundries outside the pile hole enter the pile hole when concrete is poured is reduced, then the first reinforcement cage is arranged in the pile hole to form the pile base body through concrete pouring, so that the impurities entering the pile hole in the pouring process are reduced, the influence of the protecting arms and the hole top protecting cylinder on the strength of the poured pile base body is reduced, meanwhile, the pile base body can be protected through the protecting arms, and the corrosion to the pile base body caused by later-stage use is reduced; and the spiral encircles the spiral hoop that sets up and connect in a plurality of supporting reinforcement one, and the wholeness that can effectual promotion steel reinforcement cage one optimizes the enhancement effect of a pair of pile foundation body intensity of steel reinforcement cage to optimize the intensity of pile foundation body.
Preferably, the guard arm is of an annular structure and is sleeved outside the pile foundation body, the upper end of the guard arm is fixedly connected with a connecting ring platform, the inner walls of the guard arm and the connecting ring platform are of frustum-shaped structures, the small ends of the guard arm and the connecting ring platform face upwards, and the lower end of the guard arm is sleeved outside the connecting ring platform on the guard arm below the guard arm.
By adopting the technical scheme, when the pile foundation is poured, the inner walls of the guard arms form a stepped hole-shaped structure, so that the contact area between the pile foundation body and the guard arms is effectively increased after the pile foundation body is poured, and when the pile foundation body bears load, part of the load can be relatively better transmitted to the ground through the guard arms, so that the connection strength between the pile foundation body and the pile hole is enhanced through the guard arms, and the using effect is optimized; meanwhile, the connecting ring table can position and limit the guard arm above the connecting ring table, so that the using effect is optimized.
Preferably, a second reinforcement cage for reinforcing the strength of the second reinforcement cage and the connection strength of the adjacent protection arms is arranged in each protection arm.
Through adopting above-mentioned technical scheme, steel reinforcement cage two can effectual increase the bulk strength of armguard, optimize the protective effect to the pile foundation body.
Preferably, the steel reinforcement cage two includes that a plurality of beaded finish that are the ring annular structure and a plurality of brace steel two of connecting in the beaded finish, brace steel two is vertical setting and its both ends wear out the armguard respectively, the both ends of brace steel two are the U form opening in opposite directions at U form and its both ends respectively, the both ends of brace steel two are inlayed respectively and are located in the adjacent armguard of lower extreme on its place armguard.
Through adopting above-mentioned technical scheme to make pour the completion back, when using, can effectual reinforcing armguard holistic intensity through two supporting reinforcement and beaded finish, and can inlay respectively through the both ends of two supporting reinforcement and locate in the adjacent armguard in its place armguard below, with the wholeness and the stability that increase a plurality of armguards, further optimize the protective effect to the pile foundation body.
Preferably, the hole top protection cylinder is of a tubular structure, the upper end edge of the hole top protection cylinder is turned outwards to form an overlapping flange, the lower end of the hole top protection cylinder is sleeved on a connecting ring platform located on the uppermost protection arm, and the overlapping flange is overlapped on the edge of an upper opening of the pile hole.
Through adopting above-mentioned technical scheme, do support and protection to the inner wall at the opening border in stake hole, when reducing to do and pour, impurity such as ground that stake hole inner wall scatters, the effectual impurity that contains when reducing and pouring the pile foundation body reduces the influence to the intensity of pile foundation body.
Preferably, the connection ring platform and the guard arm are integrally formed, the guard arm comprises a plurality of splicing plates spliced with each other, the splicing plates are integrally of an arc plate-shaped structure and are of a same central axis, the vertical side edges of the splicing plates are of a stepped structure and are adjacent to each other, the vertical side edges of the splicing plates are arranged in a mutual lap joint mode, and reinforcing meshes used for reinforcing the strength of the splicing plates and connecting the adjacent splicing plates are arranged in the splicing plates.
Through adopting above-mentioned technical scheme, when using, need not additionally to strut the template in the stake hole and pour and form the armguard, only need splice each other a plurality of splice plates of prefabricating and form the armguard to connect through the reinforcing bar net can with adjacent splice plate, can effectually do to the stake hole strut and do the protection to the pile foundation body in, make the construction more simple and convenient relatively.
Preferably, the reinforcing bar net includes three the supporting bar of a plurality of vertical settings and a plurality of vertical distribution's connecting reinforcement, three inlays and locates in the splice plate supporting bar, connecting reinforcement is the arcuation and its and the same the central axis of splice plate, the splice plate is worn out and is connected in the connecting reinforcement of adjacent splice plate at the both ends of connecting reinforcement.
Through adopting above-mentioned technical scheme, the intensity that splice plate can effectual increase of supporting reinforcement three and connecting reinforcement to make adjacent splice plate connect through connecting reinforcement.
Preferably, the vertical side edges of the adjacent splice plates are arranged in a clearance, the upper end and the lower end of one of the supporting steel bars III penetrate out of the splice plates respectively, the penetrating parts of the supporting steel bars III are inserted into the clearance between the vertical side edges of the two splice plates above and below respectively, and the upper end and the lower end of the supporting steel bar III penetrating out of the splice plates are fixedly connected to the connecting steel bars above and below the splice plates respectively.
Through adopting above-mentioned technical scheme, when using, the gap connection of connecting reinforcement between adjacent splice plate wears out splice plate's supporting reinforcement three and connects the connecting reinforcement in its upper and lower side armguard, can make when using, the wholeness between a plurality of armguards and the effectual increase of stability to optimize the result of use.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the pile foundation body is used, after a pile hole is drilled, a plurality of protection arms are sequentially attached to the inner wall of the pile hole to be arranged so as to support and isolate the inner wall of the pile hole, finally, a hole top protection cylinder is arranged at the uppermost protection arm to isolate the edge of an upper opening of the pile hole, so that the possibility that sundries outside the pile hole enter the pile hole is reduced when concrete is poured, then a first reinforcement cage is arranged in the pile hole to form the pile foundation body through concrete pouring so as to reduce the impurities entering the pile hole in the pouring process, therefore, the influence of the protection arms and the hole top protection cylinder on the strength of the pile foundation body after the pouring is finished can be reduced, meanwhile, the protection arms can be used for protecting the pile foundation body, and the corrosion to the pile foundation body in the later use can be reduced; and the spiral encircles the spiral hoop that sets up and connect in a plurality of supporting reinforcement one, and the wholeness that can effectual promotion steel reinforcement cage one optimizes the enhancement effect of a pair of pile foundation body intensity of steel reinforcement cage to optimize the intensity of pile foundation body.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a first embodiment of the present application.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic cross-sectional structure diagram of the second embodiment of the present application.
Fig. 4 is a partial structural schematic diagram of the second embodiment of the present application.
Description of reference numerals: 1. a pile foundation body; 2. protecting the arm; 21. a connecting ring platform; 22. a second reinforcement cage; 221. a reinforcement ring; 222. supporting a second reinforcing steel bar; 23. splicing plates; 24. a reinforcing mesh; 241. supporting a steel bar III; 242. connecting reinforcing steel bars; 3. a first reinforcement cage; 31. supporting a first reinforcing steel bar; 32. a spiral hoop; 4. a hole top protective cylinder; 41. overlapping the flanges.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
Detailed description of the preferred embodiment
The embodiment of the application discloses a firm pile foundation structure. Referring to fig. 1 and 2, the pile foundation body 1 formed by pouring concrete into the pile hole, a plurality of guard arms 2 attached to the outer wall of the pile foundation body 1, a reinforcement cage 3 embedded in the pile foundation body 1, and a hole top guard barrel 4 for reducing sundries outside the upper opening of the pile hole from falling into the pile hole are adopted. A plurality of armguards 2 cladding are located the downthehole outer wall of stake in pile foundation body 1, and pile foundation body 1 is cylindric structure, and the lower extreme of hole top protection section of thick bamboo 4 supports the armguard 2 of locating the top.
One 3 steel reinforcement cage include a plurality of support reinforcement 31 that encircle 1 the central axis setting of pile foundation body and be the spiral and encircle the spiral hoop 32 that sets up in 1 central axis of pile foundation body, support reinforcement 31 is vertical setting and a plurality of support reinforcement 31 fixed connection in spiral hoop 32. Wherein, the spiral hoop 32 is a reinforcing steel bar extending in a spiral shape.
When the pile hole drilling device is used, after the pile hole is drilled, the plurality of the guard arms 2 are sequentially attached to the inner wall of the pile hole to support and isolate the inner wall of the pile hole, finally, the hole top guard cylinder 4 is arranged at the uppermost guard arm 2 to isolate the edge of an upper opening of the pile hole, so that the possibility that sundries outside the pile hole enter the pile hole is reduced when concrete is poured, then the reinforcement cage I3 is arranged in the pile hole to form the pile base body 1 through concrete pouring, so that the impurities entering the pile hole in the pouring process are reduced, the influence of the guard arms 2 and the hole top guard cylinder 4 on the strength of the pile base body 1 after the pouring is finished is reduced, meanwhile, the pile base body 1 can be protected through the guard arms 2, and the corrosion to the pile base body 1 caused by later-stage use is reduced; and the spiral encircles the spiral hoop 32 of setting and connects in a plurality of supporting reinforcement 31, and the wholeness that can effectual promotion steel reinforcement cage 3 optimizes the reinforcement effect of steel reinforcement cage 3 to pile foundation body 1 intensity to optimize pile foundation body 1's intensity.
Referring to fig. 1 and 2, the whole of the guard arm 2 is in an annular structure and is sleeved on the pile foundation body 1, the upper end of the guard arm 2 is integrally formed with a connecting ring platform 21 which is coaxial with the guard arm 2, the inner walls of the guard arm 2 and the connecting ring platform 21 are in a frustum-shaped structure, the upper end of the guard arm 2 is a small end, and the lower end of the guard arm 2 is sleeved on the outer wall of the connecting ring platform 21 on the guard arm 2 below the guard arm.
When pouring is carried out, the inner walls of the guard arms 2 form a stepped hole-shaped structure, so that the contact area between the pile foundation body 1 and the guard arms 2 is effectively increased after the pile foundation body 1 is poured, when the pile foundation body 1 bears load, part of the load can be relatively better transmitted to the ground through the guard arms 2, the connection strength between the pile foundation body and a pile hole is enhanced through the guard arms 2, and the using effect is optimized; meanwhile, the connecting ring table 21 can position and limit the upper guard arm 2 so as to optimize the use effect.
And a second reinforcement cage 22 for enhancing the strength of the second reinforcement cage and the strength of connection between the second reinforcement cage and the adjacent protection arm 2 is arranged in the protection arm 2. The reinforcement cage two 22 includes a plurality of reinforcement rings 221 with circular ring structures and a plurality of support reinforcements two 222 connected to the reinforcement rings 221, two ends of the support reinforcements two 222 are respectively bent into a U-shaped structure, and U-shaped opposite openings at the high ends of the support reinforcements in the next year. The two ends of the U-shaped supporting steel bar II 222 are respectively embedded in the adjacent upper and lower guard arms 2 of the guard arm 2 where the supporting steel bar II is located.
So that pour the completion back, when using, through two 222 and the reinforcing ring 221 of support reinforcement can the holistic intensity of effectual reinforcing armguard 2 to can inlay respectively in locating its adjacent armguard 2 in the place armguard 2 below through two 222 both ends of support reinforcement, with the wholeness and the stability that increase a plurality of armguards 2, further optimize the protective effect to pile foundation body 1.
Referring to fig. 1 and 2, the hole top protection cylinder 4 is a tubular structure, and the upper end edge of the hole top protection cylinder extends outwards to form an overlap flange 41, the overlap flange 41 and the hole top protection cylinder 4 share the same central axis, the lower end of the hole top protection cylinder 4 is sleeved on the uppermost portion to form a connecting ring platform 21 on the protection arm 2, and the outer wall of the lower side of the overlap flange 41 is overlapped on the upper opening edge of the pile hole. Support and protection are done with the inner wall to the opening border in stake hole, when reducing to do and pour, impurity such as ground that stake hole inner wall scatters, the effectual impurity that contains when reducing to pour pile foundation body 1 reduces the influence to pile foundation body 1's intensity.
Specific example II
Referring to fig. 3 and 4, for a firm pile foundation structure disclosed in the second embodiment of the present application, the difference with the first embodiment lies in that the guard arm 2 includes a plurality of splice plates 23 spliced with each other, the splice plates 23 are integrally in an arc plate structure, the splice plates 23 are coaxial with the central axis, the upper end edge of the splice plates 23 is in a step shape, and the connecting ring platform 21 is formed by protrusions on the upper end of the splice plates 23 in the step shape. The splice plate 23 is a prefabricated plate.
The two vertical side edges of the splice plates 23 are in a step-shaped structure, the vertical side edges of two adjacent splice plates 23 are mutually inserted and overlapped, and a reinforcing mesh 24 for enhancing the strength of the splice plates and the connection strength between the adjacent splice plates 23 is arranged in each splice plate 23. So that when using, need not additionally to strut the template in the stake hole and pour and form armguard 2, only need splice each other a plurality of splice plates 23 of prefabricating and form armguard 2 to connect through reinforcing bar net 24 with adjacent splice plate 23 can, when can effectually doing the protection to the stake hole and doing the protection to pile foundation body 1, make the construction more simple and convenient relatively.
Referring to fig. 3 and 4, the rebar grid 24 includes a plurality of vertically arranged supporting rebars 241 and a plurality of vertically distributed connecting rebars 242, the supporting rebars 241 are embedded in the splice plate 23, the connecting rebars 242 are arc-shaped and have the same central axis as the splice plate 23, and two ends of the connecting rebars 242 respectively penetrate through the splice plate 23 and are connected to the connecting rebars 242 of the adjacent splice plate 23. The supporting bars three 241 and the connecting bars 242 can effectively increase the strength of the splice plates 23, and the adjacent splice plates 23 are connected through the connecting bars 242.
The vertical side edges of the adjacent splicing plates 23 are arranged in a clearance mode, the upper end and the lower end of one supporting steel bar three 241 of the supporting steel bars three 241 penetrate through the splicing plates 23 respectively, the two ends of the supporting steel bar three 241 penetrating through the splicing plates 23 are inserted into the clearance between the adjacent splicing plates 23 in the upper protection arm 2 and the lower protection arm 2 respectively and connected to the connecting steel bars 242, and the connecting steel bars 242 on the adjacent splicing plates 23 are welded in the clearance or connected through threaded pipes. Wherein, the gap between adjacent splice plates 23 can be filled with concrete or mortar when the pile foundation body 1 is poured.
So that when using, the gap connection between adjacent splice plate 23 of connecting reinforcement 242, the supporting reinforcement three 241 who wears out splice plate 23 connects in the connecting reinforcement 242 in its upper and lower guard arm 2, can make when using, the effectual increase of wholeness and stability between a plurality of guard arms 2 to optimize the result of use.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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. The utility model provides a firm pile foundation structure which characterized in that: including adopting concrete placement in pile foundation body (1) that the stake hole formed, a plurality of laminating in armguard (2) of stake basic body (1) outer wall, inlay steel reinforcement cage (3) of locating in pile foundation body (1) and be used for reducing the hole top pile casing (4) that stake hole outside debris fell into the stake hole, it is a plurality of armguard (2) cladding is located the downthehole outer wall of stake in pile foundation body (1), steel reinforcement cage (3) include a plurality of support bar (31) that encircle pile foundation body (1) the central axis setting and be spiral hoop (32) that the spiral encircles in pile foundation body (1) the central axis setting, support bar (31) are vertical setting and its fixed connection in spiral hoop (32).
2. A stable pile foundation structure according to claim 1, wherein: the pile foundation is characterized in that the guard arm (2) is of an annular structure and sleeved on the pile foundation body (1), the upper end of the guard arm (2) is fixedly connected with a connecting ring platform (21), the inner walls of the guard arm (2) and the connecting ring platform (21) are of frustum-shaped structures, the small end of the inner walls faces upwards, and the lower end of the guard arm (2) is sleeved on the connecting ring platform (21) located on the guard arm (2) below the guard arm.
3. A stable pile foundation structure according to claim 2, wherein: and a second reinforcement cage (22) used for enhancing the strength of the second reinforcement cage and the connection strength of the adjacent protection arms (2) is arranged in each protection arm (2).
4. A stable pile foundation structure according to claim 3, wherein: two (22) of steel reinforcement cage include a plurality of beaded finish (221) that are the ring form structure and a plurality of two (222) of support reinforcement of connecting in beaded finish (221), two (222) of support reinforcement are vertical setting and its both ends wear out armguard (2) respectively, the both ends of two (222) of support reinforcement are the U form opening in opposite directions at U form and its both ends respectively, the both ends of two (222) of support reinforcement are inlayed respectively and are located in the adjacent armguard (2) of lower extreme on its place armguard (2).
5. A stable pile foundation structure according to claim 1, wherein: the hole top protective barrel (4) is of a tubular structure, the upper end edge of the hole top protective barrel is outwards turned to form a lap joint flange (41), the lower end of the hole top protective barrel (4) is sleeved on a connecting ring platform (21) located on the uppermost protective arm (2), and the lap joint flange (41) is lapped on the upper opening edge of a pile hole.
6. A stable pile foundation structure according to claim 2, wherein: connecting ring platform (21) and armguard (2) integrated into one piece, armguard (2) are including a plurality of splice plates (23) of splicing each other, splice plate (23) are whole to be arc plate column structure and a plurality of splice plates (23) with the central axis, the vertical side border of splice plate (23) is the echelonment structure, and is adjacent the mutual overlap joint setting in vertical side border of splice plate (23), be provided with in splice plate (23) and be used for strengthening its intensity and connect reinforcing bar net (24) of adjacent splice plate (23).
7. A stable pile foundation structure according to claim 6, wherein: the reinforcing bar net (24) includes three (241) of the supporting reinforcement of a plurality of vertical settings and a plurality of vertical distribution's connecting reinforcement (242), three (241) of supporting reinforcement inlay and locate in splice plate (23), connecting reinforcement (242) are the arcuation and its with splice plate (23) with the central axis, splice plate (23) are worn out and are connected in connecting reinforcement (242) of adjacent splice plate (23) at the both ends of connecting reinforcement (242).
8. A stable pile foundation structure according to claim 7, wherein: the splicing plates (23) are arranged in a clearance mode between the vertical side edges of the adjacent splicing plates (23), the upper end and the lower end of one supporting steel bar three (241) of the supporting steel bars three (241) penetrate out of the splicing plates (23) respectively, the penetrating parts of the upper end and the lower end of the supporting steel bar three (241) of the splicing plates (23) are inserted into the clearance between the vertical side edges of the two splicing plates (23) above and below the penetrating parts of the supporting steel bar three (241), and the upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358813.5U CN212742515U (en) | 2020-07-10 | 2020-07-10 | Firm pile foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358813.5U CN212742515U (en) | 2020-07-10 | 2020-07-10 | Firm pile foundation structure |
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| Publication Number | Publication Date |
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| CN212742515U true CN212742515U (en) | 2021-03-19 |
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| CN202021358813.5U Active CN212742515U (en) | 2020-07-10 | 2020-07-10 | Firm pile foundation structure |
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| CN (1) | CN212742515U (en) |
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