CN214993737U - Slip casting composite foundation that building reinforcement was rectified - Google Patents
Slip casting composite foundation that building reinforcement was rectified Download PDFInfo
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Abstract
The application relates to the technical field of grouting composite foundations, in particular to a grouting composite foundation for building reinforcement and deviation rectification. A slip casting composite foundation for building reinforcement and deviation rectification comprises a combined foundation pile, a bearing pile and a concrete foundation reinforcement platform, wherein the combined foundation pile is inserted and fixed in a soil layer, and the upper surfaces of the combined foundation piles in the same row are all positioned in the same horizontal plane; the bearing pile is detachably connected to the top end of the combined foundation pile; the upper surfaces of the bearing piles are all positioned in the same horizontal plane; the concrete foundation reinforcing platform is fixedly connected to the upper surface of the bearing pile; the combined foundation pile comprises a foundation fixed pile and a deviation-correcting fixed pile, and the deviation-correcting fixed pile slides and is fixedly connected to the foundation fixed pile; and a tree root-shaped cement reinforcing body is formed outside the foundation fixing pile in a pouring mode. According to the method, a foundation soil layer does not need to be excavated, the construction process is relatively simple, and the construction period can be shortened.
Description
Technical Field
The application relates to the technical field of grouting composite foundations, in particular to a grouting composite foundation for building reinforcement and deviation rectification.
Background
The role of the foundation in the building is self-evident, and plays a role in determining the mass of the building. The quality of the foundation is closely related to the safety of the building, and the insufficient bearing capacity of the foundation can cause the building to have uneven settlement in the using process, so that the building deflects and the life safety of users of the building is influenced. Therefore, when the building deflection exceeds the allowable value in the building foundation design code (GB50007-2011), the foundation needs to be reinforced and rectified.
At present, the foundation reinforcement deviation rectifying method mainly comprises a forced landing method and a jacking deviation rectifying method. The forced landing method is to perform forced landing on the high end of the building foundation in an excavation or immersion mode, so that the building is restored to the allowable deviation range, and the purpose of deviation correction is achieved. The jacking deviation rectifying method is to lift the sinking position of the building foundation by using a jack and other equipment to lift the deviation rectifying building.
Aiming at the foundation reinforcement deviation rectification in the related technology, the inventor finds that the technical scheme has the following defects: the forced landing method needs to excavate the foundation, the construction process is complicated, and the construction period is long; the jacking deviation rectifying method also needs to excavate the foundation, the construction process is complicated, the construction period is long, and the construction cost is improved due to the use of equipment such as a jack. In conclusion, the problems of complicated construction process and long construction period exist in the related technology.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of complex construction process and long construction period in the prior art, the application provides a grouting composite foundation for building reinforcement and deviation rectification.
The application provides a slip casting composite foundation who rectifies is consolidated to building, can realize through following technical scheme:
a slip casting composite foundation for building reinforcement and deviation rectification comprises a combined foundation pile, a bearing pile and a concrete foundation reinforcement platform, wherein the combined foundation pile is provided with a plurality of rows; the combined foundation piles are inserted and fixed in the soil layer, and the upper surfaces of the combined foundation piles in the same row are all positioned in the same horizontal plane; the bearing pile is detachably connected to the top end of the combined foundation pile; the upper surfaces of the bearing piles are all positioned in the same horizontal plane; the concrete foundation reinforcing platform is fixedly connected to the upper surface of the bearing pile; the combined foundation pile comprises a foundation fixed pile and a deviation-correcting fixed pile, and the deviation-correcting fixed pile slides and is fixedly connected to the foundation fixed pile; and a tree root-shaped cement reinforcing body is formed outside the foundation fixing pile in a pouring mode.
Through adopting above-mentioned technical scheme, the foundation spud pile inserts earlier and is fixed in the soil layer after, again with rectifying spud pile sliding connection in the assembly of foundation spud pile and form combination formula foundation pile, the adjustment combination formula foundation pile upper surface all is in same horizontal plane this moment, after a period of stewing, observe whether the upper surface of each combination formula foundation pile is in same level, through the sliding distance of adjustment rectifying spud pile and foundation spud pile, thereby adjust to the upper surface of rectifying the spud pile all is in same horizontal plane, pour into the grout through static pressure slip casting in the combination formula foundation pile, the foundation spud pile outside has formed the root form cement and has consolidated the body, thereby the reinforcement of ground is rectified, this application need not excavate the ground, construction process is relatively simple, can shorten construction period.
Preferably, the upper surface of the foundation fixing pile is integrally formed with a sliding column; a sliding ring body is integrally formed on the lower surface of the deviation rectifying fixing pile; the outer diameter of the sliding ring body is equal to the outer diameter of the deviation rectifying fixing pile; the sliding ring body can slide up and down along the height direction of the sliding column; a first lifting ring groove is integrally formed on the upper surface of the foundation fixing pile; a second lifting ring groove is integrally formed on the lower surface of the deviation rectifying fixing pile; the vertical projection of the first lifting ring groove is coincided with the vertical projection of the second lifting ring groove; and a slurry injection hole communicated with the second lifting ring groove is formed in the upper surface of the deviation rectifying fixing pile.
Through adopting above-mentioned technical scheme, pour into grout in first lifting annular and second lifting annular through thick liquids filling hole static pressure, make the spud pile that rectifies slide upwards along the basis spud pile through the grout that the static pressure was poured into to comparatively convenient adjustment rectifies the spud pile upper surface of rectifying that the spud pile arrives and all is in same horizontal plane, guarantees the roughness and the stability of ground, has realized the reinforcement of ground and has rectified.
Preferably, a limit ring body is embedded in the circumferential direction of the sliding column; a vertical strip-shaped groove is formed in the circumferential direction of the limiting ring body; a strip-shaped block is integrally formed on the inner wall of the sliding ring body; the strip-shaped block is embedded in the vertical strip-shaped groove and can slide up and down along the height direction of the vertical strip-shaped groove.
Through adopting above-mentioned technical scheme, the spud pile of rectifying can follow the direction of height in vertical bar groove and slide from top to bottom, but the spud pile of rectifying can not rotate around self axial, and the built-up mounting of the combination formula foundation pile of being convenient for has just guaranteed the structural stability of combination formula foundation pile.
Preferably, the outer wall of the top end of the foundation fixing pile is fixedly connected with an anti-seepage ring body; the inner diameter of the seepage-proofing ring body is equal to the outer diameter of the deviation-correcting fixing pile; the sliding column is circumferentially sleeved with an anti-seepage foam ring; the outer diameter of the anti-seepage foam ring is equal to that of the foundation fixing pile; one end of the anti-seepage foam ring is abutted against the lower surface of the sliding ring body, and the other end of the anti-seepage foam ring is abutted against the upper surface of the foundation fixing pile.
By adopting the technical scheme, the probability of seepage of cement paste in the first lifting ring groove and the second lifting ring groove from the gap between the foundation fixing pile and the deviation rectifying fixing pile can be reduced, and the structural stability of the combined foundation pile is ensured.
Preferably, a first grouting steel pipe is pre-embedded in the deviation rectifying fixing pile; a second grouting steel pipe is pre-embedded in the foundation fixing pile; the first grouting steel pipe is seamlessly embedded in the second grouting steel pipe; the length of the overlapped part of the first grouting steel pipe and the second grouting steel pipe is 1.2-2.0 times of the height of the sliding column.
By adopting the technical scheme, the combined installation of the combined foundation piles is facilitated, and the overall construction efficiency is improved.
Preferably, the foundation fixing pile is provided with a plurality of rows of grouting unit holes communicated with the second grouting steel pipe from top to bottom; the grouting unit holes comprise a first grouting hole, a second grouting hole and a third grouting hole which are arranged on the outer side surface of the foundation fixing pile from bottom to top, and the central axis of the first grouting hole is inclined upwards; an acute angle formed by the central axis of the first grouting hole and the central axis of the foundation fixing pile is 25-40 degrees; the central axis of the second grouting hole is vertical to the central axis of the foundation fixing pile; the central axis of the third grouting hole is inclined downwards; the acute angle formed by the central axis of the third grouting hole and the central axis of the foundation fixing pile is 25-40 degrees.
Through adopting above-mentioned technical scheme, be convenient for form the root form cement and add the solid, further promote the stability of whole foundation.
Preferably, a fixed seat is formed on the upper surface of the foundation fixing pile in a pouring mode; the upper surface of the fixed seat is integrally formed with an embedded groove; the bearing pile is embedded in the embedding groove; a cylindrical groove is formed on the lower surface of the fixed seat; the cylindrical groove is communicated with the first grouting steel pipe; a grouting pipe is formed in the fixed seat in a pouring way; slip casting pipe one end communicates in the cylinder groove, and the other end is located the lateral wall of fixing base.
Through adopting above-mentioned technical scheme, not only can promote the structural stability of ground, the bearing stake's of being convenient for installation combination moreover to improve holistic efficiency of construction.
Preferably, the lower surface of the foundation fixing pile is integrally cast to form a booster cone; the lower end of the second grouting steel pipe extends into the power-assisted cone; a fourth grouting hole is formed in the periphery of the power-assisted cone; the central axis of the fourth grouting hole is inclined downwards; an acute angle formed by the central axis of the fourth grouting hole and the central axis of the foundation fixing pile is 25-40 degrees.
Through adopting above-mentioned technical scheme, be convenient for combination formula foundation pile insert and penetrate and be fixed in the underground, even if be convenient for combination formula foundation pile's aggregate erection, further improve holistic efficiency of construction.
In summary, the present application has the following advantages:
1. the foundation excavation is not needed, the construction process is simple, and the construction period can be shortened.
2. The combination formula foundation pile in this application is detachable construction, is convenient for construct the installation, promotes holistic efficiency of construction.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment in the present application.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of a modular foundation pile according to an embodiment of the present application.
Fig. 4 is a partially enlarged view at B in fig. 3.
Fig. 5 is a top view of a foundation spud in an embodiment of the present application.
FIG. 6 is a top view of a deviation rectifying spud in an embodiment of the present application.
In the figure, 1, a combined foundation pile; 10. reinforcing the root-shaped cement; 2. supporting the pile; 21. connecting reinforcing steel bars; 22. a through hole; 3. a concrete foundation stabilization platform; 4. fixing a pile on the foundation; 40. a second grouting steel pipe; 41. a sliding post; 411. an impermeable foam ring; 42. a first lifting ring groove; 43. a power-assisted cone; 431. a fourth grouting hole; 5. correcting a fixed pile; 50. a first grouting steel pipe; 51. a sliding ring body; 511. a bar-shaped block; 52. a second lifting ring groove; 53. a slurry injection hole; 6. a limiting ring body; 61. a vertical strip-shaped groove; 7. an impervious ring body; 8. grouting a unit hole; 81. a first grouting hole; 82. a second grouting hole; 83. a third grouting hole; 9. a fixed seat; 91. a fitting groove; 92. a cylindrical groove; 93. and (4) grouting pipes.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
Referring to fig. 1, for the slip casting composite foundation that this application discloses for building reinforcement rectifies, including the combination formula foundation pile 1 that the multi-row is inserted and is fixed in the soil layer, the upper surface of combination formula foundation pile 1 in the same row all is in the same horizontal plane to guarantee the stability and the security of foundation. The top end of the combined foundation pile 1 is integrally cast to form a fixed seat 9. Gomphosis fixedly connected with bearing stake 2 on the fixing base 9, the bearing stake 2 upper surface in the same row all is in same horizontal plane to guarantee the stability and the security of ground.
Referring to fig. 2, an engagement groove 91 is integrally cast on the upper surface of the fixing base 9, and a central axis of the engagement groove 91 coincides with a central axis of the fixing base 9. In bearing stake 2 gomphosis was fixed in gomphosis groove 91, realized bearing stake 2 can dismantle and fixed connection in fixing base 9. A cylindrical groove 92 is integrally formed in the lower surface of the fixing seat 9 in a pouring mode, and the central axis of the cylindrical groove 92 coincides with the central axis of the fixing seat 9. The geometric shape of the bearing pile 2 is a circular truncated cone, and the diameter of the upper bottom surface of the bearing pile 2 is 1.2-1.4 times of that of the lower bottom surface.
Referring to fig. 2, a concrete foundation reinforcing platform 3 is fixedly connected to the upper surface of the bearing pile 2. The concrete structure is as follows; a plurality of connecting steel bars 21 which are mutually spaced are embedded in the bearing pile 2. The concrete foundation reinforcing platform 3 is integrally cast with a through hole 22 for the connection steel bar 21 to penetrate through. When the concrete foundation reinforcing platform 3 is installed, the concrete foundation reinforcing platform 3 is hoisted firstly, so that the connecting steel bars 21 penetrate through the through holes 22 of the concrete foundation reinforcing platform 3, cement mortar is injected into the through holes 22 at last, the leveling layer is poured on the upper surface of the concrete foundation reinforcing platform 3, and the bearing piles 2 are fixedly connected with the concrete foundation reinforcing platform 3.
Referring to fig. 3 in combination with fig. 1, the combined foundation pile 1 includes a foundation fixing pile 4 and a deviation rectifying fixing pile 5 slidably and fixedly connected to the foundation fixing pile 4, and an outer diameter of the foundation fixing pile 4 is equal to an outer diameter of the deviation rectifying fixing pile 5. In order to ensure the connection stability of the foundation fixing pile 4 and the surrounding soil layer, a tree root-shaped cement reinforcing body 10 is poured outside the foundation fixing pile 4. The concrete structure is as follows: the second grouting steel pipe 40 is embedded in the foundation fixing pile 4, the central axis of the foundation fixing pile 4 coincides with the central axis of the second grouting steel pipe 40, and the diameter of the foundation fixing pile 4 is 2.0-3.0 times of the outer diameter of the second grouting steel pipe 40. And a boosting cone 43 which is convenient for inserting and fixing the combined foundation pile 1 is integrally cast at the bottom of the foundation fixing pile 4. The lower end of the second steel grouting pipe 40 extends into the booster cone 43. A fourth grouting hole 431 with a central axis inclined downwards is formed in the periphery of the boosting cone 43. An acute angle formed by the central axis of the fourth grouting hole 431 and the central axis of the foundation fixing pile 4 is 35-40 degrees.
Referring to fig. 3, a plurality of rows of grouting unit holes 8 communicating with the second grouting steel pipes 40 are formed in the outer side of the foundation fixing pile 4 from the top to the top. Grouting unit hole 8 includes from the bottom up opens first grouting hole 81, second grouting hole 82 and the third grouting hole 83 of locating the basis spud pile 4 lateral surface, and the interval between first grouting hole 81, the second grouting hole 82 equals the interval between second grouting hole 82, the third grouting hole 83.
Referring to fig. 3, in conjunction with fig. 1, the adjacent first grouting holes 81 are equally spaced and the vertical projections of the adjacent first grouting holes 81 form an included angle of 60 °. The central axis of the first grouting hole 81 is inclined upward, and an acute angle formed between the central axis of the first grouting hole 81 and the central axis of the foundation anchor pile 4 is 40 °. The adjacent second grouting holes 82 are equally spaced, and the vertical projections of the adjacent second grouting holes 82 form an included angle of 60 °. The central axis of the second grouting hole 82 is perpendicular to the central axis of the foundation fixing pile 4. The adjacent third grouting holes 83 are equally spaced and the vertical projections of the adjacent third grouting holes 83 form an included angle of 60 °. The central axis of the third grouting hole 83 is inclined downwards, an acute angle formed by the central axis of the third grouting hole 83 and the central axis of the foundation fixing pile 4 is 40 degrees, the second grouting steel pipe 40 is used for performing static pressure grouting to inject cement slurry, the cement slurry is sprayed along the central axis directions of the first grouting hole 81, the second grouting hole 82, the third grouting hole 83 and the fourth grouting hole 431, the root-shaped cement reinforcing body 10 is formed on the outer wall of the combined foundation pile 1, and the root-shaped cement reinforcing body 10 is combined with a soil body, so that the safety and reliability of the foundation are improved.
Referring to fig. 3 and 4, in order to ensure that the upper surfaces of the deviation-correcting spuds 5 in the same row are in the same horizontal plane, the deviation-correcting spuds 5 are slidably and fixedly connected to the foundation spud 4. The upper surface of the foundation fixing pile 4 is integrally cast with a sliding column 41, and the outer diameter of the sliding column 41 is equal to 0.72 time of the outer diameter of the foundation fixing pile 4. The sliding ring body 51 is integrally cast on the lower surface of the deviation rectifying fixed pile 5, the outer diameter of the sliding ring body 51 is equal to the outer diameter of the deviation rectifying fixed pile 5, and the inner diameter of the sliding ring body 51 is 0.75 times of the inner diameter of the deviation rectifying fixed pile 5. The outer wall cover of post 41 slides is equipped with spacing ring body 6, and spacing ring body 6 is used for the restriction to rectify spud pile 5 and rotates around self axial, guarantees holistic connection stability.
Referring to fig. 5 and 6, the outer diameter of the retainer ring body 6 is equal to 0.75 times the outer diameter of the foundation pile 4, and the inner diameter of the retainer ring body 6 is equal to 0.72 times the outer diameter of the foundation pile 4. Six vertical strip-shaped grooves 61 which are mutually spaced are formed in the circumferential direction of the limiting ring body 6. Six bar-shaped blocks 511 are integrally cast on the inner wall of the sliding ring body 51. The bar blocks 511 are seamlessly embedded in the vertical bar grooves 61, the bar blocks 511 can slide up and down along the height direction of the vertical bar grooves 61, the sliding ring body 51 can slide up and down along the height direction of the sliding column 41, and the upper surfaces of the combined foundation piles 1 in the same row are adjusted to be in the same horizontal plane.
Referring to fig. 3 and 4, the power with which the deviation correcting spud 5 can slide in the height direction of the sliding column 41 is the grout injected by static pressure. Specifically, a first lifting ring groove 42 is integrally formed on the upper surface of the foundation fixing pile 4 in a pouring mode, the outer diameter of the first lifting ring groove 42 is equal to 0.8 times of the outer diameter of the sliding column 41, and the inner diameter of the first lifting ring groove 42 is equal to 1.15 times of the inner diameter of the sliding column 41. The lower surface of the deviation rectifying fixing pile 5 is integrally cast to form a second lifting ring groove 52, the outer diameter of the second lifting ring groove 52 is equal to 0.8 time of the outer diameter of the sliding column 41, and the inner diameter of the second lifting ring groove 52 is equal to 1.15 times of the inner diameter of the sliding column 41. Thus, the vertical projection of the first lift ring groove 42 coincides with the vertical projection of the second lift ring groove 52. The upper surface of the deviation rectifying fixing pile 5 is provided with a slurry injection hole 53, and the slurry injection hole 53 is vertical and is communicated with the second lifting ring groove 52.
Referring to fig. 3 and 4, in order to reduce the probability that cement paste in the first lifting ring groove 42 and the second lifting ring groove 52 seeps out of the gap between the foundation fixing pile 4 and the deviation-correcting fixing pile 5, an anti-seepage ring body 7 is fixedly connected to the outer wall of the top end of the foundation fixing pile 4 through bolts, and the inner diameter of the anti-seepage ring body 7 is equal to the outer diameter of the deviation-correcting fixing pile 5. After the foundation fixing pile 4 and the deviation-rectifying fixing pile 5 are installed, the deviation-rectifying fixing pile 5 is seamlessly embedded in the seepage-proofing ring body 7. The sliding column 41 is circumferentially sleeved with an anti-seepage foam ring 411, and the anti-seepage foam ring 411 is made of polyurethane foam. The outer diameter of the impermeable foam ring 411 is equal to the outer diameter of the foundation spud 4, and the inner diameter of the impermeable foam ring 411 is equal to the outer diameter of the sliding column 41. After the foundation spud pile 4 and the spud pile 5 of rectifying are installed, prevention of seepage foam ring 411 one end butt in the lower surface of slip ring body 51, and the other end butt in the upper surface of foundation spud pile 4 to play the effect that reduces the probability that grout oozes from the gap between foundation spud pile 4 and the spud pile 5 of rectifying.
Referring to fig. 3 and 4, a first grouting steel pipe 50 is embedded inside the deviation rectifying fixing pile 5. The outer diameter of the first slip cast steel pipe 50 is equal to the inner diameter of the second slip cast steel pipe 40. After the foundation spud pile 4 and the deviation-rectifying spud pile 5 are installed, the first grouting steel pipe 50 is inserted into the second grouting steel pipe 40. The length of the overlapping part of the first grouting steel pipe 50 and the second grouting steel pipe 40 is 1.3 times of the height of the sliding column 41. The lower surface of the fixed seat 9 is formed with a cylindrical groove 92 corresponding to the first steel grouting pipe 50, and the diameter of the cylindrical groove 92 is equal to the inner diameter of the first steel grouting pipe 50. A grouting pipe 93 is formed in the fixing seat 9 in a pouring manner, and the central axis of the grouting pipe 93 is perpendicular to the central axis of the fixing seat 9. Slip casting pipe 93 one end communicates in cylindrical groove 92, and the other end of slip casting pipe 93 wears to establish fixing base 9 and is located the lateral wall of fixing base 9, has realized the purpose of injecting grout into second slip casting steel pipe 40 through slip casting pipe 93.
The construction method comprises the following steps:
step 1, inserting and fixing a foundation fixing pile 4 in a soil layer, and then connecting a deviation-correcting fixing pile 5 to the foundation fixing pile in a sliding manner to assemble to form a combined foundation pile 1, so as to ensure that the upper surfaces of the combined foundation piles 1 in the same row are all in the same horizontal plane;
and 4, hoisting the concrete foundation reinforcing platform 3, so that cement mortar is injected into the through hole 22 after the connecting steel bars 21 penetrate through the through hole 22, and pouring a leveling layer on the upper surface of the concrete foundation reinforcing platform 3 to finish the construction of the composite foundation.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the 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 slip casting composite foundation who rectifies, its characterized in that: the combined foundation pile comprises a combined foundation pile (1), a bearing pile (2) and a concrete foundation reinforcing platform (3), wherein the combined foundation pile (1) is provided with a plurality of rows; the combined foundation piles (1) are inserted and fixed in a soil layer, and the upper surfaces of the combined foundation piles (1) in the same row are all positioned in the same horizontal plane; the bearing pile (2) is detachably connected to the top end of the combined foundation pile (1); the upper surfaces of the bearing piles (2) are all positioned in the same horizontal plane; the concrete foundation reinforcing platform (3) is fixedly connected to the upper surface of the bearing pile (2); the combined foundation pile (1) comprises a foundation fixed pile (4) and a deviation-rectifying fixed pile (5), wherein the deviation-rectifying fixed pile (5) slides and is fixedly connected to the foundation fixed pile (4); the external part of the foundation fixing pile (4) is poured to form a tree root-shaped cement reinforcing body (10).
2. The grouting composite foundation for building reinforcement and deviation rectification according to claim 1, characterized in that: a sliding column (41) is integrally formed on the upper surface of the foundation fixing pile (4); a sliding ring body (51) is integrally formed on the lower surface of the deviation rectifying fixed pile (5); the outer diameter of the sliding ring body (51) is equal to the outer diameter of the deviation rectifying fixed pile (5); the sliding ring body (51) can slide up and down along the height direction of the sliding column (41); a first lifting ring groove (42) is integrally formed on the upper surface of the foundation fixing pile (4); a second lifting ring groove (52) is integrally formed on the lower surface of the deviation rectifying fixing pile (5); the vertical projection of the first lifting ring groove (42) is coincided with the vertical projection of the second lifting ring groove (52); and a slurry injection hole (53) communicated with the second lifting ring groove (52) is formed in the upper surface of the deviation rectifying fixing pile (5).
3. The grouting composite foundation for building reinforcement and deviation rectification according to claim 2, wherein: a limiting ring body (6) is embedded in the circumferential direction of the sliding column (41); a vertical strip-shaped groove (61) is formed in the circumferential direction of the limiting ring body (6); a bar block (511) is integrally formed on the inner wall of the sliding ring body (51); the strip block (511) is embedded in the vertical strip groove (61) and the strip block (511) can slide up and down along the height direction of the vertical strip groove (61).
4. The grouting composite foundation for building reinforcement and deviation rectification according to claim 2, wherein: the outer wall of the top end of the foundation fixing pile (4) is fixedly connected with an anti-seepage ring body (7); the inner diameter of the seepage-proofing ring body (7) is equal to the outer diameter of the deviation-rectifying fixed pile (5); the sliding column (41) is circumferentially sleeved with an anti-seepage foam ring (411); the outer diameter of the anti-seepage foam ring (411) is equal to that of the foundation fixing pile (4); one end of the anti-seepage foam ring (411) is abutted against the lower surface of the sliding ring body (51), and the other end of the anti-seepage foam ring is abutted against the upper surface of the foundation fixing pile (4).
5. The grouting composite foundation for building reinforcement and deviation rectification according to claim 4, wherein: a first grouting steel pipe (50) is embedded in the deviation rectifying fixed pile (5); a second grouting steel pipe (40) is embedded in the foundation fixing pile (4); the first grouting steel pipe (50) is seamlessly embedded in the second grouting steel pipe (40); the length of the overlapped part of the first grouting steel pipe (50) and the second grouting steel pipe (40) is 1.2-2.0 times of the height of the sliding column (41).
6. The grouting composite foundation for building reinforcement and deviation rectification according to claim 5, wherein: the foundation fixing pile (4) is provided with a plurality of rows of grouting unit holes (8) communicated with the second grouting steel pipe (40) from top to bottom; the grouting unit holes (8) comprise a first grouting hole (81), a second grouting hole (82) and a third grouting hole (83) which are arranged on the outer side surface of the foundation fixing pile (4) from bottom to top, and the central axis of the first grouting hole (81) is inclined upwards; an acute angle formed by the central axis of the first grouting hole (81) and the central axis of the foundation fixing pile (4) is 25-40 degrees; the central axis of the second grouting hole (82) is vertical to the central axis of the foundation fixing pile (4); the central axis of the third grouting hole (83) is inclined downwards; an acute angle formed by the central axis of the third grouting hole (83) and the central axis of the foundation fixing pile (4) is 25-40 degrees.
7. The grouting composite foundation for building reinforcement and deviation rectification according to claim 5, wherein: a fixed seat (9) is formed on the upper surface of the foundation fixing pile (4) in a pouring mode; an embedded groove (91) is integrally formed on the upper surface of the fixed seat (9); the bearing pile (2) is embedded in the embedding groove (91); a cylindrical groove (92) is formed on the lower surface of the fixed seat (9); the cylindrical groove (92) is communicated with the first grouting steel pipe (50); a grouting pipe (93) is formed in the fixed seat (9) in a pouring way; one end of the grouting pipe (93) is communicated with the cylindrical groove (92), and the other end of the grouting pipe is positioned on the outer side wall of the fixed seat (9).
8. The grouting composite foundation for building reinforcement and deviation rectification according to claim 5, wherein: the lower surface of the foundation fixing pile (4) is integrally poured to form a booster cone (43); the lower end of the second grouting steel pipe (40) extends into the boosting cone (43); a fourth grouting hole (431) is formed in the periphery of the power-assisted cone (43); the central axis of the fourth grouting hole (431) is inclined downwards; an acute angle formed by the central axis of the fourth grouting hole (431) and the central axis of the foundation fixing pile (4) is 25-40 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121488289.8U CN214993737U (en) | 2021-07-01 | 2021-07-01 | Slip casting composite foundation that building reinforcement was rectified |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121488289.8U CN214993737U (en) | 2021-07-01 | 2021-07-01 | Slip casting composite foundation that building reinforcement was rectified |
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| CN214993737U true CN214993737U (en) | 2021-12-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457833A (en) * | 2022-02-21 | 2022-05-10 | 三峡大学 | Pile foundation structure capable of being strengthened on coral sand and method |
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2021
- 2021-07-01 CN CN202121488289.8U patent/CN214993737U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114457833A (en) * | 2022-02-21 | 2022-05-10 | 三峡大学 | Pile foundation structure capable of being strengthened on coral sand and method |
| CN114457833B (en) * | 2022-02-21 | 2024-03-12 | 三峡大学 | Pile foundation structure capable of being reinforced on coral sand and method |
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