CN217517557U - Steel pipe pile with rear grouting pile end - Google Patents
Steel pipe pile with rear grouting pile end Download PDFInfo
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- CN217517557U CN217517557U CN202221520779.6U CN202221520779U CN217517557U CN 217517557 U CN217517557 U CN 217517557U CN 202221520779 U CN202221520779 U CN 202221520779U CN 217517557 U CN217517557 U CN 217517557U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model provides a stake end back slip casting steel-pipe pile, it includes: the device comprises a steel pipe pile body, a first grouting component and a second grouting component; the interior of the steel pipe pile body is used for accommodating a first filler with a gap; the first grouting component is arranged at the top of the steel pipe pile body; the first grouting component comprises a first grouting pipe and an exhaust pipe, and the first grouting pipe and the exhaust pipe are arranged at intervals along the radial direction of the steel pipe pile body; the second grouting component is positioned at the bottom of the steel pipe pile body, and the post-grouting steel pipe pile at the pile end is configured in such a way that slurry injected from the first grouting pipe flows out of the second grouting component after flowing through the gap of the first filler so as to be grouted to the pile end of the steel pipe pile body and a soil body on the pile side. By the configuration, the inner cavity of the steel pipe pile body is used as a grouting channel, so that the material consumption is saved; meanwhile, pile end and pile side soil bodies are reinforced through pile end grouting, and bearing efficiency of the steel pipe pile body is improved.
Description
Technical Field
The utility model belongs to the technical field of civil engineering construction and specifically relates to a stake end back slip casting steel-pipe pile.
Background
The existing anchor rod static pressure steel pipe pile has the advantages of small construction equipment, small operation space and the like, so the anchor rod static pressure steel pipe pile is widely applied to foundation reinforcement engineering, but is limited by pressure of a pressed pile, and the bearing capacity of the anchor rod static pressure steel pipe pile is small, so that the pile body strength is surplus and great, and the material waste is serious; meanwhile, in the prior art, the grouting pipe is arranged in the steel pipe pile, and the grouting hole is formed in the surface of one section of the steel pipe pile, so that the side grouting of the steel pipe pile is realized, and the bearing capacity of the anchor rod static pressure steel pipe pile is improved. However, the grouting structure and method are complex, the material consumption is high, in addition, the foundation reinforcement is only limited to the pile side, the soil layer at the pile end cannot be reinforced, and the foundation reinforcement effect is limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stake end back slip casting steel-pipe pile to solve the extravagant, the limited scheduling problem of ground reinforcement effect of construction material.
In order to achieve the above object, the utility model provides a stake end back slip casting steel-pipe pile, include: the device comprises a steel pipe pile body, a first grouting component and a second grouting component;
the interior of the steel pipe pile body is used for accommodating a first filler with a gap;
the first grouting component is arranged at the top of the steel pipe pile body;
the first grouting assembly comprises a first grouting pipe and an exhaust pipe, and the first grouting pipe and the exhaust pipe are arranged at intervals along the radial direction of the steel pipe pile body;
the second grouting component is located at the bottom of the steel pipe pile body, and the post-pile-end grouting steel pipe pile is configured such that slurry injected from the first grouting pipe flows through the gap of the first filler and then flows out of the second grouting component so as to be grouted to the pile end and the pile-side soil body of the steel pipe pile body.
Optionally, the first grouting assembly further includes a first sealing plate, the first sealing plate has two first through holes, and the first grouting pipe and the exhaust pipe penetrate through the first through holes in a one-to-one correspondence manner.
Optionally, the first closing plate is welded to the top of the steel pipe pile body.
Optionally, the first grouting assembly further comprises a grouting valve, and the grouting valve is connected with the first grouting pipe and used for opening or closing the first grouting pipe.
Optionally, the first grouting assembly further comprises an exhaust valve, and the exhaust valve is connected with the exhaust pipe and used for opening or closing the exhaust pipe.
Optionally, the second grouting assembly includes a second sealing plate and a second grouting pipe, the second sealing plate has a second through hole, and the second grouting pipe penetrates through the second through hole.
Optionally, the second closing plate is welded to the bottom of the steel pipe pile body.
Optionally, the second grouting assembly further comprises a protection member and a cover plate;
one end of the protection piece is connected with the second sealing plate, and the other end of the protection piece is connected with the cover plate;
the protection piece is sleeved outside the peripheral wall of the second grouting pipe, a filling area is formed between the protection piece and the peripheral wall of the second grouting pipe, and the filling area is used for containing granular second fillers.
Optionally, the outer circumferential wall of the protecting member has a plurality of third through holes, and the diameter of the third through holes is smaller than the particle size of the second filler, so as to allow the slurry to seep out, so as to reinforce the pile end of the steel pipe pile body and the pile side soil body.
Optionally, the second grouting assembly further includes a filter located at the grouting end of the second grouting pipe, for blocking the first filler from entering the second grouting pipe.
To sum up, the utility model provides a pair of in stake end back slip casting steel-pipe pile, stake end back slip casting steel-pipe pile includes: the steel pipe pile comprises a steel pipe pile body, a first grouting component and a second grouting component; the interior of the steel pipe pile body is used for accommodating a first filler with a gap; the first grouting assembly is arranged at the top of the steel pipe pile body; the first grouting assembly comprises a first grouting pipe and an exhaust pipe, and the first grouting pipe and the exhaust pipe are arranged at intervals along the radial direction of the steel pipe pile body; the second grouting component is positioned at the bottom of the steel pipe pile body, and the post-end grouting steel pipe pile is configured in such a way that slurry injected from the first grouting pipe flows through the gap of the first filler and then flows out of the second grouting component so as to be grouted to the pile end of the steel pipe pile body and a pile side soil body.
By the configuration, the inner cavity of the steel pipe pile body is used as a grouting channel, so that the step of installing a grouting pipe is omitted, the consumption of steel pipe materials is saved, and the construction efficiency is improved; meanwhile, the pile end soil body is reinforced through pile end grouting, and slurry can return upwards along the pile body along with the progress of the grouting process, so that the pile side soil body is further reinforced, the foundation reinforcing effect is better, and the bearing efficiency of the steel pipe pile body is improved; in addition, the first filler with the gaps is filled in the steel pipe pile body, and the bearing capacity of the steel pipe pile body is increased and the construction cost is also reduced through cement paste cementation.
Drawings
Fig. 1 is a schematic view of a post-pile-end grouting steel pipe pile according to an embodiment of the present invention;
fig. 2 is a side view of a second grouting assembly according to an embodiment of the invention;
fig. 3 is a top view of a second grouting assembly according to an embodiment of the invention;
fig. 4 is a schematic view of step S1 of the construction method according to the embodiment of the present invention;
fig. 5 is a schematic view of step S2 of the construction method according to the embodiment of the present invention;
fig. 6 is a schematic view of step S3 of the construction method according to the embodiment of the present invention;
fig. 7 is a schematic view of step S4 of the construction method according to the embodiment of the present invention;
fig. 8 is a schematic diagram of step S5 of the construction method according to the embodiment of the present invention.
Wherein the reference numerals are:
10-a steel pipe pile body; 20-a first grouting component; 30-a second grouting component; 40-a first filler; 50-a second filler; 201-first grouting pipe; 202-an exhaust pipe; 203-a first closing plate; 204-a grouting valve; 205-an exhaust valve; 206-a first via; 301-a second closure plate; 302-a second slip casting pipe; 303-a protective element; 304-a cover plate; 305-a second via; 306-a third via; 307-a filter element; 308-fixing elements.
Detailed Description
To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are intended to be part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.
As used in this specification, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in its sense including "and/or," the terms "a" and "an" are generally employed in their sense including "at least one," the terms "at least two" are generally employed in their sense including "two or more," and the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" and "proximal end" and "distal end" generally refer to the corresponding two parts, which include not only the end points, but also the terms "mounted", "connected" and "connected" should be understood broadly, e.g., as a fixed connection, as a detachable connection, or as an integral part; either directly or indirectly through intervening media, either internally or in any other relationship. Furthermore, as used in this specification, an element being disposed on another element generally only means that there is a connection, coupling, fit, or drive relationship between the two elements, and the connection, coupling, fit, or drive between the two elements may be direct or indirect through intermediate elements, and should not be understood as indicating or implying any spatial relationship between the two elements, i.e., an element may be in any orientation inside, outside, above, below, or to one side of another element, unless the content clearly dictates otherwise. The terms "upper", "lower", "top" and "bottom" are generally relative positions arranged in the direction of gravity; the term "vertical, vertical direction" generally refers to a direction along gravity, which is generally perpendicular to the ground, "horizontal, horizontal direction" generally along a direction parallel to the ground; the specific meanings of the above terms in the present specification can be understood according to specific situations by those of ordinary skill in the art.
An object of the utility model is to provide a post grouting steel-pipe pile of pile tip and construction method to solve the extravagant, the limited scheduling problem of ground reinforcement effect of construction material.
The following description refers to the accompanying drawings.
Referring to fig. 1 and 7 to 8, an embodiment of the present invention provides a post-grouting steel pipe pile, including: the steel pipe pile comprises a steel pipe pile body 10, a first grouting assembly 20 and a second grouting assembly 30; the steel pipe pile body 10 is used for accommodating a first filler 40 with a gap inside; the first grouting component 20 is arranged at the top of the steel pipe pile body 10; the first grouting assembly 20 comprises a first grouting pipe 201 and an exhaust pipe 202, wherein the first grouting pipe 201 and the exhaust pipe 202 are arranged at intervals along the radial direction of the steel pipe pile body 10; the second grouting assembly 30 is located at the bottom of the steel pipe pile body 10, and the post-end grouting steel pipe pile is configured such that the slurry injected from the first grouting pipe 201 flows through the gap of the first filler 40 and then flows out of the second grouting assembly 30 to be grouted to the pile end and the pile-side soil body of the steel pipe pile body 10. It should be noted that, in the example shown in fig. 1, the first filler 40 is clean crushed stone, but in some other examples, the first filler 40 may also be other materials with gaps, and those skilled in the art may configure the first filler 40 according to practical situations, which is not limited by the present invention.
With the configuration, the inner cavity of the steel pipe pile body 10 is used as a grouting channel, so that the step of installing a grouting pipe is omitted, the consumption of steel pipe materials is saved, and the construction efficiency is improved; meanwhile, the pile end soil body is reinforced through pile end grouting, and slurry can return upwards along the pile body along with the progress of the grouting process, so that the pile side soil body is further reinforced, the foundation reinforcing effect is better, and the bearing efficiency of the steel pipe pile body 10 is also improved; in addition, the first filler 40 with a gap is filled in the steel pipe pile body 10, and the first filler is cemented by cement paste, so that the bearing capacity of the steel pipe pile body 10 is increased, and the construction cost is reduced.
Referring to fig. 1, the first grouting assembly 20 further includes a first cover plate 203, two first through holes 206 are formed in the first cover plate 203, and the first grouting pipes 201 and the exhaust pipes 202 are correspondingly inserted into the first through holes 206 one by one. Note that, in the example shown in fig. 1, the first grouting pipe 201 and the exhaust pipe 202 are both circular tubular members with a radius of 1 inch, and accordingly, the size of the first through hole 206 is adapted to the circular tubular members. In some other embodiments, the radius of the first grouting pipe 201 and the exhaust pipe 202 may be other reasonable sizes, but the present invention is not limited thereto.
As an alternative embodiment, the first closing plate 203 is welded to the top of the steel pipe pile body 10. In other examples, the connection mode between the first sealing plate 203 and the top of the steel pipe pile body 10 may be other reasonable forms, but the present invention is not limited thereto.
Further, the first grouting assembly 20 further comprises a grouting valve 204, and the grouting valve 204 is connected with the first grouting pipe 201 and used for opening or closing the first grouting pipe 201. So configured, the user can control the grouting rate of the first grouting pipe 201 by opening or closing the grouting valve 204, thereby improving the construction efficiency and the safety during the construction process.
Further, the first grouting assembly 20 further includes an exhaust valve 205, and the exhaust valve 205 is connected to the exhaust pipe 202 and is used for opening or closing the exhaust pipe 202. With this configuration, the user can control the exhaust pipe 202 by opening or closing the exhaust valve 205 so as to exhaust the internal gas of the steel pipe pile body 10.
Referring to fig. 1 to 3, the second grouting assembly 30 includes a second cover plate 301 and a second grouting pipe 302, the second cover plate 301 has a second through hole 305, and the second grouting pipe 302 is inserted through the second through hole 305. It should be noted that, in the example shown in fig. 1 to fig. 2, the second grouting pipe 302 is a circular tubular member, and the second closing plate 301 has a second through hole 305 adapted to the shape and size of the second grouting pipe 302, in some other examples, the second grouting pipe 302 and the second through hole 305 may also be members with other shapes, which is not limited by the present invention.
As an alternative embodiment, the second sealing plate 301 is welded to the bottom of the steel pipe pile body 10. In other examples, the connection mode between the second closing plate 301 and the bottom of the steel pipe pile body 10 may be other reasonable forms, but the present invention is not limited thereto.
With continued reference to fig. 1 to 3, the second grouting assembly 30 further includes a protection member 303 and a cover plate 304; one end of the protecting piece 303 is connected with the second closing plate 301, and the other end is connected with the cover plate 304; the protecting member 303 is sleeved outside the outer circumferential wall of the second grouting pipe 302, and a filling area is formed between the protecting member 303 and the outer circumferential wall of the second grouting pipe 302, and the filling area is used for accommodating the granular second filler 50. It should be noted that, in the example shown in fig. 2 to 3, the protection member 303 is a steel pipe with a diameter of 89mm, but in other embodiments, the protection member 303 may be a member with other dimensions and other materials, and those skilled in the art can configure the protection member 303 according to actual situations, which is not limited by the invention.
Further, the outer circumferential wall of the protector 303 has a plurality of third through holes 306, and the diameter of the third through holes 306 is smaller than the particle size of the second filler 50, so as to allow the slurry to seep out, so as to reinforce the pile end and the pile side soil body of the steel pipe pile body 10. Note that, in the example shown in fig. 2, 16 third through holes 306 having a diameter of 8mm are provided in the outer peripheral wall of the protector 303; the second filler 50 is a gravel with a diameter larger than 8mm, and in some other embodiments, the third through hole 306 and the second filler 50 may be other types of members and materials, which can be configured by those skilled in the art according to the actual conditions of the construction site, and the present invention is not limited thereto.
As an alternative embodiment, in the example shown in fig. 3, the protection member 303 is welded to the second cover plate 301 by four fixing members 308, and the four fixing members 308 are uniformly distributed along the circumference of the second cover plate 301. In other embodiments, the protection member 303 and the second closing plate 301 may be connected by other members with the same function, but the invention is not limited thereto.
Further, the second grouting assembly 30 further includes a filter 307, where the filter 307 is located at the grouting end of the second grouting pipe 302 and is used for blocking the first filler 40 from entering the second grouting pipe 302. In the example shown in fig. 2, the filter element 307 is a fine mesh, but in some other embodiments, the filter element 307 may be another element having the same function, and the invention is not limited thereto.
The using principle of the post-pile-end grouting steel pipe pile according to the present embodiment is further described below with reference to fig. 1 to 8, and a second grouting assembly 30 is welded to the bottom of the steel pipe pile body 10 (in this case, the state is shown in fig. 4); sinking the second grouting assembly 30 and the steel pipe pile body 10 to a designed elevation by using a crane (the state at this time is shown in fig. 5); filling the first filler 40 into the steel pipe pile body 10 until the first filler 40 reaches the top of the steel pipe pile body (the state in this case is shown in fig. 6); welding the first slip casting assembly 20 to the top of the steel pipe pile body 10 (in this state, as shown in fig. 7); opening an exhaust valve, and grouting the interior of the steel-pipe pile body 10 through the first grouting pipe 201 by a high-pressure grouting pump (the state at this time is shown in fig. 8); after the slurry emerges from the exhaust pipe 202, the exhaust valve 205 is closed; and (3) continuing to perform grouting to the inside of the steel pipe pile body 10 through the first grouting pipe 201 by using a high-pressure grouting pump, and enabling slurry to flow to the pile end soil body of the steel pipe pile body 10 through the second grouting assembly 30 and return upwards along the pile side until the designed grouting amount is reached.
It should be noted that the slurry is injected into the steel pipe pile body 10 through the first grouting pipe 201, flows through the gap of the first filler 40, and then flows out from the second grouting component 30, and the slurry firstly reinforces the soil body at the pile end through chemical cementation, then returns upward along the pile body, and generates chemical cementation with the soil body at the pile side, thereby further improving the bearing performance of the pile body. As will be understood by those skilled in the art, the design grouting amount is obtained according to the size of the steel pipe pile body 10, and in the example shown in fig. 1 to 8, the design grouting amount is 1t, and the design grouting amount is related to the size of the steel pipe pile body 10, and the value of the design grouting amount should be further adjusted in consideration of the reinforcement effect of the pile end and the pile side.
To sum up, the utility model provides a pair of in stake end back slip casting steel-pipe pile, stake end back slip casting steel-pipe pile includes: the steel pipe pile comprises a steel pipe pile body, a first grouting component and a second grouting component; the interior of the steel pipe pile body is used for accommodating a first filler with a gap; the first grouting component is arranged at the top of the steel pipe pile body; the first grouting assembly comprises a first grouting pipe and an exhaust pipe, and the first grouting pipe and the exhaust pipe are arranged at intervals along the radial direction of the steel pipe pile body; the second grouting component is positioned at the bottom of the steel pipe pile body, and the post-end grouting steel pipe pile is configured in such a way that slurry injected from the first grouting pipe flows through the gap of the first filler and then flows out of the second grouting component so as to be grouted to the pile end of the steel pipe pile body and a pile side soil body.
By the configuration, the inner cavity of the steel pipe pile body is used as a grouting channel, so that the step of installing a grouting pipe is omitted, the consumption of steel pipe materials is saved, and the construction efficiency is improved; meanwhile, the pile end soil body is reinforced through pile end grouting, and slurry can return upwards along the pile body along with the progress of the grouting process, so that the pile side soil body is further reinforced, the foundation reinforcing effect is better, and the bearing efficiency of the steel pipe pile body is improved; in addition, the first filler with the gaps is filled in the steel pipe pile body, and the bearing capacity of the steel pipe pile body is increased and the construction cost is also reduced through cement paste cementation.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (10)
1. The utility model provides a stake end back slip casting steel-pipe pile which characterized in that includes: the device comprises a steel pipe pile body, a first grouting component and a second grouting component;
the interior of the steel pipe pile body is used for accommodating a first filler with a gap;
the first grouting assembly is arranged at the top of the steel pipe pile body;
the first grouting assembly comprises a first grouting pipe and an exhaust pipe, and the first grouting pipe and the exhaust pipe are arranged at intervals along the radial direction of the steel pipe pile body;
the second grouting component is positioned at the bottom of the steel pipe pile body, and the post-end grouting steel pipe pile is configured in such a way that slurry injected from the first grouting pipe flows through the gap of the first filler and then flows out of the second grouting component so as to be grouted to the pile end of the steel pipe pile body and a pile side soil body.
2. The pile-end back-grouting steel pipe pile of claim 1, wherein the first grouting assembly further comprises a first sealing plate, the first sealing plate is provided with two first through holes, and the first grouting pipes and the exhaust pipes penetrate through the first through holes in a one-to-one correspondence manner.
3. The pile-end back-grouted steel pipe pile of claim 2, wherein the first sealing plate is welded to the top of the steel pipe pile body.
4. The pile-end-back-grouted steel pipe pile of claim 1, wherein the first grouting assembly further comprises a grouting valve connected with the first grouting pipe for opening or closing the first grouting pipe.
5. The pile-end post-grouting steel pipe pile of claim 1, wherein the first grouting assembly further comprises an exhaust valve connected with the exhaust pipe for opening or closing the exhaust pipe.
6. The post-pile-end grouted steel pipe pile according to claim 1, wherein the second grouting assembly comprises a second closing plate and a second grouting pipe, the second closing plate is provided with a second through hole, and the second grouting pipe penetrates through the second through hole.
7. The pile-end back-grouting steel pipe pile of claim 6, wherein the second closing plate is welded to the bottom of the steel pipe pile body.
8. The post-pile-end grouted steel pipe pile of claim 6, wherein the second grouting assembly further comprises a protector and a cover plate;
one end of the protection piece is connected with the second sealing plate, and the other end of the protection piece is connected with the cover plate;
the protection piece is sleeved outside the peripheral wall of the second grouting pipe, a filling area is formed between the protection piece and the peripheral wall of the second grouting pipe, and the filling area is used for containing granular second fillers.
9. The pile-end rear-grouting steel pipe pile of claim 8, wherein the outer peripheral wall of the protector has a plurality of third through holes having a diameter smaller than the particle diameter of the second filler for allowing the slurry to seep out to reinforce the pile end and pile-side soil of the steel pipe pile body.
10. The post-pile-end grouted steel pipe pile of claim 6, wherein said second grouting assembly further comprises a filter at the grout inlet end of said second grouting pipe for blocking the first filler from entering said second grouting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221520779.6U CN217517557U (en) | 2022-06-16 | 2022-06-16 | Steel pipe pile with rear grouting pile end |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221520779.6U CN217517557U (en) | 2022-06-16 | 2022-06-16 | Steel pipe pile with rear grouting pile end |
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| CN217517557U true CN217517557U (en) | 2022-09-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960640A (en) * | 2022-06-16 | 2022-08-30 | 上海同人里岩土工程技术有限公司 | Post-grouting steel pipe pile at pile end and construction method thereof |
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2022
- 2022-06-16 CN CN202221520779.6U patent/CN217517557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114960640A (en) * | 2022-06-16 | 2022-08-30 | 上海同人里岩土工程技术有限公司 | Post-grouting steel pipe pile at pile end and construction method thereof |
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