CN214460344U - Pile foundation structure capable of protecting sounding pipe - Google Patents

Abstract

The utility model belongs to the technical field of civil engineering construction, specifically disclose a pile foundation structure that can protect sounding pipe, including steel casing, instrument post, sounding pipe, first steel reinforcement cage, pipe, steel pipe center pillar and fix the annular steel sheet on the steel pipe center pillar, the steel casing can prevent that the drill way from being destroyed or the hole body from collapsing when pile foundation pore-forms, the steel casing can fix pile position, first steel reinforcement cage and pipe; the tool post is fixed on the upper part of the steel pipe middle upright post; the steel pipe middle upright post and the tool post can be positioned inside the steel casing, and the guide pipe is used for injecting concrete; the acoustic pipe is used for detecting the quality of the pile foundation; the annular steel plate is provided with a plurality of groups of through holes, the sound measuring tubes are in one-to-one correspondence with the through holes in the annular steel plate, and the sound measuring tubes can penetrate through the through holes. Above-mentioned pile foundation can solve among the prior art acoustic survey pipe and suffer damage easily thereby influence the problem that pile foundation quality detected.

Description

Pile foundation structure capable of protecting sounding pipe

Technical Field

The utility model belongs to the technical field of civil engineering construction, especially, relate to a can protect stake foundation structure of sounding pipe.

Background

In the field of civil engineering construction, in particular in pile foundation engineering which is constructed by a reverse construction method, the pile foundation is used as a main bearing part of a structure, and the guarantee of the construction quality is particularly important. In the construction of the reverse construction method, the foundation pit is excavated later, the pile foundation is constructed first, the quality of the pile foundation needs to be detected after the construction of the deep and large pile foundation is finished and before the foundation pit is excavated, the existing method for detecting the quality of the pile foundation mainly adopts an ultrasonic detection method, so that a sounding pipe needs to be embedded and protected in the pile forming process of the pile foundation, and the quality detection in the later period is ensured to be carried out smoothly. However, in the actual construction process, the part of the acoustic pipe which is connected to the upper part of the pile foundation and extends to the ground surface is easily damaged, so that the quality detection of the pile foundation is influenced, and the construction quality of the pile foundation cannot be proved, so that the later excavation of a foundation pit, the construction of a main body structure and the like are influenced. Therefore, a pile foundation capable of protecting the acoustic pipe is urgently needed, the acoustic pipe can be effectively prevented from being damaged, the quality detection of the pile foundation in the later period can be smoothly carried out, and a foundation is laid for the development of follow-up work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can protect the stake foundation structure of sounding pipe to thereby it easily suffers the problem that damages influence stake basis quality detection among the solution prior art to the sounding pipe.

In order to achieve the above purpose, the technical scheme of the utility model is that: the pile foundation structure capable of protecting the sounding pipe comprises a steel pile casing, a tool column, the sounding pipe, a first steel reinforcement cage, a guide pipe and a steel pipe center pillar, wherein the steel pile casing can prevent an orifice from being damaged or a hole body from collapsing when a pile foundation is formed in a hole, and the steel pile casing can fix a pile position, the first steel reinforcement cage and the guide pipe; the tool column is fixed on the upper part of the steel pipe middle upright column; the steel pipe center pillar and the tool post can be positioned inside the steel casing, and the guide pipe is used for injecting concrete; the acoustic pipe is used for detecting the quality of the pile foundation; the acoustic pipe is characterized by further comprising an annular steel plate fixed on the steel pipe middle stand column, a plurality of groups of through holes are formed in the annular steel plate, a plurality of groups of acoustic pipes are arranged, the acoustic pipes correspond to the through holes in the annular steel plate one to one, and the acoustic pipes can penetrate through the through holes.

The sound-measuring tube is characterized by further comprising a plurality of groups of longitudinal auxiliary steel bars, wherein the longitudinal auxiliary steel bars correspond to the sound-measuring tubes one by one; the longitudinal auxiliary steel bar is fixed with the sounding pipe; the longitudinal auxiliary steel bar and the sounding pipe can penetrate through the through hole; the longitudinal auxiliary steel bars are fixed inside the first steel bar cage; the longitudinal auxiliary reinforcing steel bar can extend to the ground along with the sounding pipe.

Furthermore, the annular steel plates are provided with a plurality of groups, and the plurality of groups of annular steel plates are distributed along the length direction of the steel pipe middle upright post.

Further, the diameter of the tool post is smaller than that of the steel casing and larger than that of the steel pipe center pillar, and the tool post is installed on the upper portion of the steel pipe center pillar; the length of the tool column is comprehensively determined according to the ground elevation and the elevation of the steel pipe center pillar, and the top of the tool column is 4-5m higher than the ground.

Furthermore, the steel protects a section of thick bamboo and adopts two sets ofly, and the length of two sets of steel protects a section of thick bamboo is 7.5m, and two sets of steel protects a section of thick bamboo and fixes along length direction.

Further, the diameter of the annular steel plate is smaller than the inner diameter of the steel casing, the outer side of the annular steel plate can slide on the inner wall of the steel casing along the length direction of the steel casing, and the annular steel plate is in clearance fit with the steel casing.

Furthermore, the longitudinal auxiliary steel bars and the sounding pipe are bound and fixed.

Furthermore, a first reinforcing ring is arranged at the joint of the two groups of steel casing.

Further, both ends of the steel casing are provided with second reinforcing rings.

Further, still include the second steel reinforcement cage, the second steel reinforcement cage can be arranged in the steel pipe center pillar and all around can with the inner wall contact of steel pipe center pillar.

The working principle of the technical scheme is as follows: pile foundation from last to transferring the steel down when pore-forming and protecting a section of thick bamboo, treat that the stake pore-forming is accomplished the back, transfer first steel reinforcement cage, first steel reinforcement cage is transferred to and is protected a consistent back of elevation with the steel, uses two carrying poles to pass first steel reinforcement cage to let the both ends of carrying pole place in the top that a section of thick bamboo was protected to the steel, a steel protects a section of thick bamboo and supports first steel reinforcement cage and carrying pole, and first steel reinforcement cage is by interim fixed. After fixing vertical auxiliary reinforcement and sounding pipe and first steel reinforcement cage, continue to transfer first steel reinforcement cage to design elevation after, the bottom of stake pore-forming supports the bottom of first steel reinforcement cage, then transfers the pipe and pours the concrete to pile bolck design elevation. Then inserting the steel pipe middle upright post, sequentially penetrating the longitudinal auxiliary steel bar and the sounding pipe through the through hole on the annular steel plate fixed on the steel pipe middle upright post according to the corresponding positions during insertion, and fixing the steel pipe middle upright post after the design depth is reached; after the pile foundation concrete reaches the final setting strength, lowering the second reinforcement cage into the interior of the steel pipe center pillar and pouring concrete, and filling the interior of the steel pipe center pillar with concrete; finally, the gap between the steel pipe center pillar and the steel casing is backfilled with broken stones, so that the steel pipe center pillar is fixed.

The beneficial effects of this technical scheme lie in: the annular steel plate with the through hole is fixed on the middle upright post of the steel pipe, and the longitudinal auxiliary steel bar is fixed with the sounding pipe, so that the sounding pipe which is connected to the upper part of the pile foundation and extends to the ground surface is protected, the breakage or deformation of the sounding pipe is effectively prevented, and the later-stage pile foundation detection is guaranteed. And secondly, during the gravel backfilling period, the gravel can fall through the through holes in the annular steel plate in sequence, the annular steel plate plays a role in buffering, and the direct impact of the gravel on the sound measurement pipe is reduced. And meanwhile, the diameter of the annular steel plate is slightly smaller than that of the steel casing, so that the periphery of the annular steel plate is limited by the inner wall of the steel casing, a first reinforcement cage in the lower steel pipe center pillar, concrete is poured and the verticality of the steel pipe center pillar can be effectively controlled by the annular steel plate through the limitation of the steel casing in the backfilling and gravel breaking stage. And fourthly, the tool column is convenient for hoisting and mounting the steel pipe middle upright column. Before pouring the steel pipe center pillar, a second reinforcement cage is placed inside the steel pipe center pillar to enhance the tensile strength.

Drawings

Fig. 1 is an external structural schematic view of a pile foundation structure capable of protecting a sounding pipe according to the present invention;

FIG. 2 is a schematic structural view of an internal tool post and a steel pipe center post in a pile foundation structure capable of protecting a sounding pipe according to the present invention;

fig. 3 is a schematic structural view of an internal steel pipe center pillar, an annular steel plate, a sounding pipe and a longitudinal auxiliary steel bar in the pile foundation structure capable of protecting the sounding pipe according to the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

fig. 6 is an enlarged view at C in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the steel protects a section of thick bamboo 1, steel pipe center pillar 2, first steel reinforcement cage 3, instrument post 4, first beaded finish 5, second beaded finish 6, annular steel sheet 7, through-hole 8, vertical auxiliary reinforcement 9, sounding pipe 10.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The examples are substantially as shown in figures 1 to 6 of the accompanying drawings: the pile foundation structure capable of protecting the sounding pipe comprises a steel pile casing 1, a tool column 4, the sounding pipe 10, a first steel reinforcement cage 3, a second steel reinforcement cage, a guide pipe, a steel pipe middle upright post 2, a plurality of groups of longitudinal auxiliary steel bars 9 and an annular steel plate 7 fixed on the steel pipe middle upright post 2, wherein the steel pile casing 1 can prevent an orifice from being damaged or a hole body from collapsing when a pile foundation is formed, and the steel pile casing 1 can fix a pile position, the first steel reinforcement cage 3 and the guide pipe; the tool post 4 is fixed on the upper part of the steel pipe middle upright post 2, and the tool post 4 is convenient for hoisting and mounting the steel pipe middle upright post 2; the steel pipe middle upright post 2 and the tool post 4 can be positioned inside the steel casing 1, and the guide pipe is used for injecting concrete; the sounding pipe 10 is used for detecting the quality of a pile foundation, and the sounding pipe 10 is provided with a plurality of groups.

As shown in fig. 3, the annular steel plates 7 are provided with a plurality of groups, 2 groups of the annular steel plates 7 are adopted in the embodiment, and the 2 groups of the annular steel plates 7 are distributed along the length direction of the steel pipe middle upright post 2; the annular steel plate 7 is provided with a plurality of groups of through holes 8, 4 groups of through holes are adopted in the embodiment, the sound measuring tubes 10 are in one-to-one correspondence with the through holes 8 on the annular steel plate 7, and the sound measuring tubes 10 are also provided with 4 groups.

The longitudinal auxiliary steel bars 9 correspond to the sound measuring tubes 10 one by one, namely 4 groups of the longitudinal auxiliary steel bars 9 are also arranged; as shown in fig. 3 and 4, the longitudinal auxiliary steel bars 9 are bound and fixed with the sounding pipe 10; the longitudinal auxiliary steel bar 9 and the sound detection pipe 10 can penetrate through the through hole 8; the longitudinal auxiliary steel bars 9 are welded on the inner wall of the first steel bar cage 3; the longitudinal auxiliary reinforcement 9 can extend to the ground along with the sounding pipe 10.

The diameter of the tool post 4 is smaller than that of the steel casing 1 and larger than that of the steel pipe middle upright post 2, and the tool post 4 is arranged at the upper part of the steel pipe middle upright post 2; the length of the tool post 4 is comprehensively determined according to the ground elevation and the elevation of the steel pipe middle upright post 2, and the top of the tool post 4 is 4-5m higher than the ground.

The steel protects a 1 and adopts two sets ofly, and the length of two sets of steel protects a 1 is 7.5m, and two sets of steel protects a 1 and fixes along length direction. The junction of two sets of steel protects a section of thick bamboo 1 is equipped with first beaded finish 5, and two ends that first beaded finish 5 was kept away from to two sets of steel protect a section of thick bamboo 1 are fixed with second beaded finish 6.

The diameter of the annular steel plate 7 is slightly smaller than the inner diameter (for example, smaller by 1cm) of the steel casing 1, the outer side of the annular steel plate 7 can slide on the inner wall of the steel casing 1 along the length direction of the steel casing 1, the annular steel plate 7 is in clearance fit with the steel casing 1, namely the inner wall of the steel casing 1 can limit the position of the annular steel plate 7 to a certain extent, and the annular steel plate 7 is prevented from being inclined.

The second steel reinforcement cage can be arranged in the steel pipe center pillar 2 and can be contacted with the inner wall of the steel pipe center pillar 2 all around.

The specific implementation process is as follows:

pile foundation from last to transferring steel down when pore-forming and protecting a section of thick bamboo 1, treat that the stake pore-forming is accomplished the back, transfer first steel reinforcement cage 3, first steel reinforcement cage 3 is transferred to and is protected a 1 elevation unanimous back with the steel, uses two carrying poles to pass first steel reinforcement cage 3 to let the both ends of carrying pole place in the steel and protect a 1 top, a section of thick bamboo 1 is protected to the steel supports first steel reinforcement cage 3 and carrying pole, first steel reinforcement cage 3 is by interim fixed. After fixing vertical auxiliary reinforcement 9 and sounding pipe 10 and first steel reinforcement cage 3, continue to transfer first steel reinforcement cage 3 to design elevation after, the bottom of stake pore-forming supports the bottom of first steel reinforcement cage 3, then transfers the pipe and pours the concrete to pile bolck design elevation. Then inserting the steel pipe middle upright post 2, sequentially penetrating the longitudinal auxiliary steel bar 9 and the sounding pipe 10 through the through hole 8 on the annular steel plate 7 fixed on the steel pipe middle upright post 2 according to corresponding positions during insertion, and fixing the steel pipe middle upright post 2 after reaching the designed depth; after the pile foundation concrete reaches the final setting strength, a second reinforcement cage is placed into the steel pipe middle upright post 2 and concrete is poured into the steel pipe middle upright post 2, and the interior of the steel pipe middle upright post 2 is filled with the concrete; and finally, backfilling a gap between the steel pipe center pillar 2 and the steel casing 1 with broken stones, so as to fix the steel pipe center pillar 2.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The pile foundation structure capable of protecting the sounding pipe comprises a steel pile casing (1), a tool column (4), the sounding pipe (10), a first reinforcement cage (3), a guide pipe and a steel pipe center pillar (2), wherein the steel pile casing (1) can prevent an orifice from being damaged or a hole body from collapsing when a pile foundation is formed, and the steel pile casing (1) can fix a pile position, the first reinforcement cage (3) and the guide pipe; the tool post (4) is fixed on the upper part of the steel pipe middle upright post (2); the steel pipe center pillar (2) and the tool post (4) can be positioned inside the steel casing (1), and the guide pipe is used for injecting concrete; the acoustic pipe (10) is used for detecting the quality of the pile foundation; the method is characterized in that: still including fixing annular steel sheet (7) on steel pipe center pillar (2), be equipped with a plurality of groups through-hole (8) on annular steel sheet (7), sounding pipe (10) are equipped with a plurality of groups, through-hole (8) one-to-one on sounding pipe (10) and annular steel sheet (7), sounding pipe (10) can pass through-hole (8).

2. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: the acoustic pipe is characterized by further comprising a plurality of groups of longitudinal auxiliary steel bars (9), wherein the longitudinal auxiliary steel bars (9) correspond to the acoustic pipes (10) one to one; the longitudinal auxiliary steel bar (9) is fixed with the sounding pipe (10); the longitudinal auxiliary steel bar (9) and the sounding pipe (10) can penetrate through the through hole (8); the longitudinal auxiliary steel bar (9) is fixed inside the first steel bar cage (3); the longitudinal auxiliary steel bar (9) can extend to the ground along with the sounding pipe (10).

3. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: the annular steel plates (7) are provided with a plurality of groups, and the plurality of groups of annular steel plates (7) are distributed along the length direction of the steel pipe center pillar (2).

4. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: the diameter of the tool post (4) is smaller than that of the steel casing (1) and larger than that of the steel pipe center pillar (2), and the tool post (4) is installed on the upper portion of the steel pipe center pillar (2); the length of the tool column (4) is comprehensively determined according to the ground elevation and the elevation of the steel pipe center pillar (2), and the top of the tool column (4) is 4-5m higher than the ground.

5. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: the steel protects a section of thick bamboo (1) and adopts two sets ofly, and the length of two sets of steel protects a section of thick bamboo (1) is 7.5m, and is two sets of steel protects a section of thick bamboo (1) and fixes along length direction.

6. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: the diameter of the annular steel plate (7) is smaller than the inner diameter of the steel casing (1), the outer side of the annular steel plate (7) can slide on the inner wall of the steel casing (1) along the length direction of the steel casing (1), and the annular steel plate (7) is in clearance fit with the steel casing (1).

7. The pile foundation structure capable of protecting the sounding pipe according to claim 2, characterized in that: and the longitudinal auxiliary steel bar (9) is bound and fixed with the sounding pipe (10).

8. The pile foundation structure capable of protecting an sounding pipe according to claim 5, characterized in that: and a first reinforcing ring (5) is arranged at the joint of the two groups of steel casing cylinders (1).

9. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: and the two ends of the steel casing (1) are provided with second reinforcing rings (6).

10. The pile foundation structure capable of protecting an sounding pipe according to claim 1, characterized in that: still include the second steel reinforcement cage, the second steel reinforcement cage can be arranged in the steel pipe center pillar and all around can with the inner wall contact of steel pipe center pillar.

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