CN109853568B - Matching structure of grouting perforated pipe and pile body - Google Patents
Matching structure of grouting perforated pipe and pile body Download PDFInfo
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- CN109853568B CN109853568B CN201910223802.1A CN201910223802A CN109853568B CN 109853568 B CN109853568 B CN 109853568B CN 201910223802 A CN201910223802 A CN 201910223802A CN 109853568 B CN109853568 B CN 109853568B
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- floral tube
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Abstract
The invention relates to the technical field of concrete pile bodies, and discloses a matching structure of a grouting perforated pipe and a pile body, which comprises a hollow pile body and a grouting perforated pipe, wherein a hollow area is formed in the interior of the pile body in a surrounding manner, a plurality of mounting holes are reserved in the side wall of the pile body, and the mounting holes are obliquely arranged downwards along the direction from inside to outside of the pile body; the mounting holes are arranged at intervals along the axial direction of the pile body; the inner of slip casting floral tube is inserted and is established in the mounting hole, the length of slip casting floral tube is greater than the length of mounting hole, and the outer end of slip casting floral tube arranges outside the mounting hole in, show in the cavity region of pile body, on the one hand, when the slip casting floral tube is installed, the mounting hole of slope arrangement more makes things convenient for the installation of slip casting floral tube and the pouring of thick liquid, on the other hand, when exerting pressure to the outer end of slip casting floral tube from last down, can obtain bigger horizontal component, and then promote the effect of creeping into of slip casting floral tube, have very strong practicality.
Description
Technical Field
The invention relates to the technical field of concrete pile bodies, in particular to a matching structure of a grouting perforated pipe and a pile body.
Background
With the rapid development of urban construction, the concrete pile body is widely applied to the fields of industrial and civil buildings, municipal works and other various projects by virtue of a series of advantages of reliable pile body quality, high bearing capacity, rapid construction, good economy and the like.
At present, concrete piles are divided into prestressed concrete piles (PC piles), prestressed concrete thin-wall piles (PTC piles) and prestressed high-strength concrete piles (PHC piles) according to the concrete strength grade and the wall thickness, and usually the piles are only used as end-bearing piles without considering the pile side frictional resistance, so that the use of the piles is limited to a certain extent when friction piles and uplift piles are designed.
In the prior art, a method of driving grouting floral tubes around a pile body is generally adopted to increase the friction force of the pile side, but due to the characteristics of the traditional concrete pile body, the space inside the pile body is limited, so that the grouting floral tubes are inconvenient to operate in the process of pressing the grouting floral tubes into soil around the pile body.
Disclosure of Invention
The invention aims to provide a matching structure of a grouting floral tube and a pile body, and aims to solve the problem that the grouting floral tube is inconvenient to press into the pile body in the prior art.
The invention is realized in such a way that the matching structure of the grouting perforated pipe and the pile body comprises the pile body and the grouting perforated pipe, wherein the pile body is hollow inside, a hollow area is formed in the pile body in an enclosing manner, a plurality of mounting holes are reserved in the side wall of the pile body, and the mounting holes are obliquely arranged downwards along the direction from inside to outside of the pile body; the mounting holes are arranged at intervals along the axial direction of the pile body; the inner end of the grouting floral tube is inserted into the mounting hole, the length of the grouting floral tube is larger than that of the mounting hole, and the outer end of the grouting floral tube is arranged outside the mounting hole and exposed in the hollow area of the pile body.
Furthermore, a grouting channel is arranged in the grouting floral tube and is communicated with the inner end and the outer end of the grouting floral tube; the inner end of the grouting floral tube is arranged in a pointed shape to form a conical end.
Furthermore, the side wall of the conical end is provided with a plurality of gap strips communicated with the grouting channel, the inner ends of the gap strips are gathered at the inner end part of the grouting floral tube, and the outer ends of the gap strips extend along the axial direction of the grouting floral tube.
Furthermore, the inner of slip casting floral tube has the embedding section of embedding in the soil body, the periphery of embedding section is equipped with a plurality of thick liquid tubules of leading for the swing of embedding section, and is a plurality of it encircles to lead the thick liquid tubule the periphery of embedding section.
Furthermore, the outer end of the slurry guide thin tube is hinged to the embedding section, and the inner end of the slurry guide thin tube is arranged in a vacant mode; the inside of leading thick liquid tubule with the inside intercommunication of slip casting floral tube, it has the inside thick liquid mouth that leads of a plurality of intercommunications on the lateral wall of thick liquid tubule.
Furthermore, a soil stopping valve is arranged on the outer side of the mounting hole.
Furthermore, the middle part of the mounting hole is provided with a convex cavity which is convexly arranged upwards.
Further, be equipped with the depressed trench on the inside wall of pile body, the depressed trench is the strip and follows the longitudinal direction of pile body extends, the mounting hole has the orientation the inner opening of hollow region and the outer opening that arranges towards the soil body, the inner opening of mounting hole is arranged in the depressed trench.
Further, the outer end of slip casting floral tube has the bar breach, the vertical uncovered arrangement upwards of bar breach.
Furthermore, a sunken area is arranged on the outer side wall of the pile body, and the outer opening is arranged in the sunken area.
Compared with the prior art, the grouting perforated pipe and pile body matching structure provided by the invention has the advantages that through the pile body and the grouting perforated pipe which are hollow inside, a hollow area is formed in the pile body in an enclosing manner, a plurality of mounting holes are reserved in the side wall of the pile body, and the mounting holes are obliquely arranged downwards along the direction from inside to outside of the pile body; the mounting holes are arranged at intervals along the axial direction of the pile body; the inner of slip casting floral tube is inserted and is established in the mounting hole, the length of slip casting floral tube is greater than the length of mounting hole, and the outer end of slip casting floral tube arranges outside the mounting hole in, show in the cavity region of pile body, on the one hand, when the slip casting floral tube is installed, the mounting hole of slope arrangement more makes things convenient for the installation of slip casting floral tube and the pouring of thick liquid, on the other hand, when exerting pressure to the outer end of slip casting floral tube from last down, can obtain bigger horizontal component, and then promote the effect of creeping into of slip casting floral tube, have very strong practicality.
Drawings
FIG. 1 is a schematic cross-sectional view of a grouting perforated pipe and pile body matching structure provided by the invention;
FIG. 2 is a schematic cross-sectional view of a grouting floral tube pushed into a soil body in a matching structure of the grouting floral tube and a pile body provided by the invention;
FIG. 3 is a top view of the grouting perforated pipe and the soil stopping cut installed in the matching structure of the grouting perforated pipe and the pile body provided by the invention;
FIG. 4 is a top view of the grouting small pipe and pile body after pushing in the matching structure of grouting perforated pipe and pile body provided by the invention;
FIG. 5 is a partial cross-sectional enlarged view of the pile body after jacking in the grouting floral tube and pile body matching structure provided by the invention;
FIG. 6 is a schematic front view of a grouting flower tube and a pile body in a matched structure, wherein the grouting flower tube and the pile body are in a scattered state;
FIG. 7 is a schematic front view showing the fitting state of slurry guiding tubules in the matching structure of the grouting floral tube and the pile body provided by the invention;
fig. 8 is a sectional view of the pile body in the matching structure of the grouting perforated pipe and the pile body provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-8, preferred embodiments of the present invention are shown.
The matching structure of the grouting perforated pipe and the pile body is not only limited to the concrete pile body, but also can be used for other concrete structures.
The matching structure of the grouting perforated pipe 2 and the pile body comprises the pile body 1 with a hollow inner part and the grouting perforated pipe 2, wherein a hollow area 8 is formed in the pile body 1 in an enclosing manner, a plurality of mounting holes 6 are reserved in the side wall of the pile body 1, and the mounting holes 6 are obliquely arranged downwards along the direction from inside to outside of the pile body 1; a plurality of mounting holes 6 are arranged at intervals along the axial direction of the pile body 1; the inner end of the grouting floral tube 2 is inserted into the mounting hole 6, the length of the grouting floral tube 2 is larger than that of the mounting hole 6, and the outer end of the grouting floral tube 2 is arranged outside the mounting hole 6 and exposed in the hollow area 8 of the pile body 1.
Foretell cooperation structure of slip casting perforated pipe and pile body, through set up the mounting hole 6 that the slope was arranged on the lateral wall of the pile body 1 that surrounds to be formed with hollow region 8 in inside, on the one hand, when installation slip casting perforated pipe 2, the mounting hole 6 that the slope was arranged more makes things convenient for the installation of slip casting perforated pipe 2 and the pouring of thick liquid, on the other hand, when from last outer end to slip casting perforated pipe 2 down applys pressure, can obtain bigger horizontal component, and then promote the drilling effect of slip casting perforated pipe 2, has very strong practicality.
The mounting hole 6 can provide the passageway for follow-up slip casting on the one hand, and on the other hand can also play in the promotion process to slip casting floral tube 2, to the spacing and the effect of direction of slip casting floral tube 2, like this, slip casting floral tube 2 can enter into the soil body according to the angle that we predetermine in order to reach the better effect that increases stake side friction.
Furthermore, the obliquely arranged mounting holes 6 facilitate the inflow of grout during grouting.
In addition, the middle part of the mounting hole 6 is provided with a convex cavity which is arranged in an upward convex mode, and in the process of applying pressure to the grouting floral tube 2, if the grouting floral tube 2 receives great resistance in entering soil, deformation and even breakage can occur, so that the middle part of the mounting hole 6 is set to be provided with the convex cavity which is arranged in an upward convex mode, when the grouting floral tube 2 is bent, the cavity can provide space for deformation of the grouting floral tube 2, the situation that the grouting floral tube 2 is broken can be reduced, and the fault tolerance of the grouting floral tube 2 in the drilling process is improved.
A grouting channel is arranged in the grouting floral tube 2 and is communicated with the inner end and the outer end of the grouting floral tube 2, and grout can flow and diffuse between the outer end and the inner end of the grouting floral tube 2 along the grouting channel; the inner of slip casting floral tube 2 is most advanced and arranges, form the toper end, make things convenient for slip casting floral tube 2 to pierce the soil horizon around pile body 1, the lateral wall of toper end is equipped with the breach strip of a plurality of intercommunication slip casting passageways, the inner of a plurality of breach strips is gathered at the inner end of slip casting floral tube 2, the outer end of breach strip extends along the axial strip of slip casting floral tube 2 and arranges, the circulation diffusion of the thick liquid of being convenient for, in order to form more bulky thick liquid package 5, reach the effect of increase stake side friction force better.
The inner end of the grouting floral tube 2 is provided with an embedded section embedded in soil, the periphery of the embedded section is provided with a plurality of slurry guide tubules 20 swinging relative to the embedded section, and the plurality of slurry guide tubules 20 surround the periphery of the embedded section; the outer end of the slurry guide tubule 20 is hinged on the embedded section, and the inner end of the slurry guide tubule 20 is arranged in a vacant mode and is convenient to be installed in the installation hole 6.
The inner part of the slurry guide tubule 20 is communicated with the inner part of the grouting floral tube 2, and the side wall of the slurry guide tubule 20 is provided with a plurality of slurry guide ports communicated with the inner part; the embedding section of slip casting floral tube 2 is inserted in mounting hole 6, and the outer end of slip casting floral tube 2 is arranged outside mounting hole 6.
The soil stopping valve 3 is arranged outside the mounting hole 6, and the soil stopping valve 3 can block soil residues on the periphery of the pile body 1, so that the external soil residues are prevented from entering the mounting hole, and smooth drilling of the grouting perforated pipe 2 is guaranteed.
Be equipped with the depressed trench 11 on the inside wall of pile body 1, depressed trench 11 is the strip and extends along pile body 1's longitudinal direction, mounting hole 6 has the interior opening towards hollow region 8 and the outer opening that arranges towards the soil body, in the depressed trench 11 is arranged in to the interior opening of mounting hole 6, depressed trench 11 is convenient for follow-up slip casting, to grouting in the depressed trench 11, the thick liquid can be in the same direction as the interior opening of mounting hole 6 and flow into slip casting floral tube 2, can reach higher slip casting efficiency and slip casting effect.
Slip casting floral tube 2's outer end has the bar breach, and the vertical uncovered arrangement up of bar breach, and during slip casting clearance 60 was arranged in to the bar breach, when the thick liquid was injected in slip casting clearance 60 from top to bottom, the thick liquid was just facing the bar breach, can directly flow in slip casting floral tube 2, promoted slip casting efficiency and slip casting effect.
Be equipped with the sunk area 42 on the lateral wall of pile body 1, the outer opening is arranged in the sunk area 42, and thick liquid stream when arriving around the lateral wall of pile body 1, the shutoff is in the inside and the periphery of sunk area 42, even pile body 1 takes place vibrations or other interference, thick liquid package 5 also can be firm laminating on the lateral wall of pile body 1, further increases the resistance to compression and the resistance to plucking bearing capacity of pile body 1.
In addition, a pushing steel pipe 4 with the outer diameter smaller than the inner diameter of the hollow area 8 of the pile body 1 is provided, the pushing steel pipe 4 is inserted from the hollow area 8 of the pile body 1 along the direction from top to bottom, along with the pressing-in of the pushing steel pipe 4 from top to bottom, the pushing steel pipe 4 is pressed against the outer end of the grouting floral tube 2, the grouting floral tube 2 is continuously pushed into the mounting hole 6, the inner end of the grouting floral tube 2 is pushed out of the mounting hole 6 and is embedded into the soil body outside the pile body 1.
In addition, when the pushing steel pipe 4 is placed in the hollow area 8 of the pile body 1, the pushing steel pipe 4 pushes the grouting floral pipe 2 to move outwards, the conical end of the grouting floral pipe 2 is pressed against the soil stop valve 3 and pushes the soil stop valve 3 open, the grouting floral pipe 2 is pushed into soil around the pile body 1, the soil stop valve 3 can stop a soil layer around the pile body 1 from entering the mounting hole 6 before pushing, and smooth pushing of the grouting floral pipe 2 in the mounting hole 6 is guaranteed.
When the pushing steel pipe 4 is used for pushing, the grouting floral tube 2 is also obliquely arranged when being placed in the mounting hole 6 which is obliquely arranged, the grouting floral tube 2 has a tendency of downward inclination and sliding, and at the moment, the pushing steel pipe 4 can push the grouting floral tube 2 out of the mounting hole 6 only by slightly abutting against the grouting floral tube 2; on the other hand, just by pushing lightly, the grouting floral tube 2 can be pushed, so that the grouting floral tube 2 cannot scratch and rub the mounting hole 6 in the pushing process, and the mounting hole 6 is effectively prevented from being damaged.
Furthermore, the top of the pushing steel pipe 4 is provided with a pushing end 41, the pushing end 41 is arranged in an inverted cone shape, in the pushing process of the pushing steel pipe 4, the pushing end 41 enters the pile body 1 firstly and contacts with the grouting floral tube 2, the pushing end 41 is arranged in an inverted cone shape, and then is matched with the mounting hole 6 which is inclined downwards, a larger component force can be applied towards the inclined direction of the mounting hole 6, and further, the grouting floral tube 2 is smoothly pushed into a soil body.
After the pushing steel pipe 4 is completely inserted into the hollow area 8 of the pile body 1, a grouting gap 60 is formed between the outer side wall of the pushing steel pipe 4 and the inner side wall of the pile body 1, and the outer end of the grouting perforated pipe 2 is exposed in the grouting gap 60; injecting grout into the grouting gap 60, injecting the grout into soil outside the pile body 1 through the grouting floral tube 2, and forming a grout bag 5 wrapping the inner end of the grouting floral tube 2 around the inner end of the grouting floral tube 2; a plurality of thick liquid package 5 encircle and arrange around pile body 1 and embed in the soil body around to increase pile side frictional resistance, the resistance to compression and the resistance to plucking bearing capacity of pile body 1 and the soil body around, have very strong practicality.
The outer end of the grouting floral tube 2 is provided with an outer end face opposite to the pushing steel tube 4, the outer end face and the pushing end 41 of the pushing steel tube 4 are obliquely arranged in the same direction, when the pushing steel tube 4 enters the hollow area 8, the outer end face of the grouting floral tube 2 is pressed against the pushing end 41, the pushing end 41 and the outer end face have the same inclination angle, the pushing end 41 and the outer end face can have a larger contact area, the pushing end 41 can be conveniently pressed on the outer end face, meanwhile, the laminating tightness is increased, and the stability and the accuracy in the pushing process are improved.
And the pushing steel pipe 4 pushes the outer end of the grouting flower pipe 2, the embedded section of the grouting flower pipe 2 pushes towards the soil body, the slurry guide tubule 20 expands along with the pushing of the embedded section and is inserted into the soil body in a divergent manner, when grouting is carried out in the grouting flower pipe 2, slurry flows to the slurry guide tubule 20 along the grouting flower pipe 2 and continuously flows into the soil body from the slurry guide port 21 of the slurry guide tubule 20, a slurry bag 5 is formed around the grouting flower pipe 2, the pile side frictional resistance of the pile body 1 and the surrounding soil body is increased, the adaptability of the pile body 1 to the bad geological section is effectively enhanced, and the application range of the pile body 1 is enlarged.
And after grouting is finished, pulling out the pushing steel pipe 4, recovering the pushing steel pipe 4, and repeatedly using the steel pipe in subsequent construction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The matching structure of the grouting perforated pipe and the pile body is characterized by comprising a hollow pile body and the grouting perforated pipe, wherein a hollow area is formed in the pile body in an enclosing manner, a plurality of mounting holes are reserved in the side wall of the pile body, and a convex cavity which is arranged upwards in a protruding manner is arranged in the middle of each mounting hole; the mounting holes are obliquely arranged downwards along the direction from inside to outside of the pile body; the mounting holes are arranged at intervals along the axial direction of the pile body; the inner end of the grouting floral tube is inserted into the mounting hole, the length of the grouting floral tube is greater than that of the mounting hole, the outer end of the grouting floral tube is arranged outside the mounting hole and exposed in the hollow area of the pile body, a concave groove is formed in the inner side wall of the pile body, the concave groove is strip-shaped and extends in the longitudinal direction of the pile body, the mounting hole is provided with an inner opening facing the hollow area and an outer opening facing a soil body, and the inner opening of the mounting hole is arranged in the concave groove; providing a jacking steel pipe with the outer diameter smaller than the inner diameter of the hollow area of the pile body, wherein the outer end of the grouting perforated pipe is provided with an outer end face arranged opposite to the jacking steel pipe, and the outer end face and the jacking end of the jacking steel pipe are obliquely arranged in the same direction; after the pushing steel pipe is completely inserted into the hollow area of the pile body, a grouting gap is formed between the outer side wall of the pushing steel pipe and the inner side wall of the pile body; a grouting channel is arranged in the grouting floral tube and is communicated with the inner end and the outer end of the grouting floral tube; the inner end of the grouting floral tube is arranged in a pointed shape to form a conical end; the inner of slip casting floral tube has the embedding section that is used for the embedding in the soil body, the periphery of embedding section is equipped with a plurality of thick liquid tubules of leading for the swing of embedding section, and is a plurality of it encircles to lead thick liquid tubule the periphery of embedding section.
2. The slip casting perforated pipe and pile body matching structure as claimed in claim 1, wherein the side wall of the conical end is provided with a plurality of notch strips communicated with the slip casting channel, the inner ends of the notch strips are gathered at the inner end of the slip casting perforated pipe, and the outer ends of the notch strips are arranged along the axial strip extension of the slip casting perforated pipe.
3. The matching structure of the grouting floral tube and the pile body as claimed in claim 1, wherein the outer end of the grout guide thin tube is hinged to the embedding section, and the inner end of the grout guide thin tube is arranged in a vacant way; the inside of leading thick liquid tubule with the inside intercommunication of slip casting floral tube, it has the inside thick liquid mouth that leads of a plurality of intercommunications on the lateral wall of thick liquid tubule.
4. The structure of any one of claims 1 to 3, wherein a soil stop valve is installed outside the installation hole.
5. The matching structure of a grouting floral tube and a pile body as claimed in any one of claims 1 to 3, wherein the outer end of the grouting floral tube is provided with a strip-shaped notch, and the strip-shaped notch is vertically arranged to be open upwards.
6. The structure of claim 1, wherein the outer side wall of the pile body is provided with a recessed area, and the outer opening is disposed in the recessed area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910223802.1A CN109853568B (en) | 2019-03-22 | 2019-03-22 | Matching structure of grouting perforated pipe and pile body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910223802.1A CN109853568B (en) | 2019-03-22 | 2019-03-22 | Matching structure of grouting perforated pipe and pile body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109853568A CN109853568A (en) | 2019-06-07 |
| CN109853568B true CN109853568B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910223802.1A Active CN109853568B (en) | 2019-03-22 | 2019-03-22 | Matching structure of grouting perforated pipe and pile body |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730838A (en) * | 2005-08-04 | 2006-02-08 | 张文巨 | Longitudinally inserted horizontally wedged construction pile and its construction method |
| CN107989034A (en) * | 2017-11-24 | 2018-05-04 | 浙江宏联建设有限公司 | A kind of manually digging hole filling pile and its construction method |
| JP6397751B2 (en) * | 2014-12-19 | 2018-09-26 | 渡辺 徹 | Construction method of rebar reinforcement assembly, rebar reinforcement, and cast-in-place pile |
-
2019
- 2019-03-22 CN CN201910223802.1A patent/CN109853568B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1730838A (en) * | 2005-08-04 | 2006-02-08 | 张文巨 | Longitudinally inserted horizontally wedged construction pile and its construction method |
| JP6397751B2 (en) * | 2014-12-19 | 2018-09-26 | 渡辺 徹 | Construction method of rebar reinforcement assembly, rebar reinforcement, and cast-in-place pile |
| CN107989034A (en) * | 2017-11-24 | 2018-05-04 | 浙江宏联建设有限公司 | A kind of manually digging hole filling pile and its construction method |
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| CN109853568A (en) | 2019-06-07 |
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