CN113944161A - Soft soil stratum anti-floating anchor rod construction method - Google Patents
Soft soil stratum anti-floating anchor rod construction method Download PDFInfo
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- CN113944161A CN113944161A CN202111278345.XA CN202111278345A CN113944161A CN 113944161 A CN113944161 A CN 113944161A CN 202111278345 A CN202111278345 A CN 202111278345A CN 113944161 A CN113944161 A CN 113944161A
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- thick bamboo
- protect
- bracing piece
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The application discloses soft soil stratum anti-floating anchor rod construction method, including the section of thick bamboo that protects that is arranged in inserting the anchor eye, it supplies the anchor rod to insert to protect a section of thick bamboo, it has the bracing piece that is used for stretching out to protect a section of thick bamboo to protect a sliding connection in a section of thick bamboo, the bracing piece is used for stretching out and protects a section of thick bamboo with the butt anchor eye expansion section roof, and the anchor rod inserts protect the in-process drive of a section of thick bamboo the bracing piece stretches out protect a section of thick bamboo, this application has the effect of improving soft soil stratum T shape anchor eye and producing the condition of collapsing the hole easily in expansion section position department.
Description
Technical Field
The invention relates to the field of anti-floating anchor rods, in particular to a construction method of an anti-floating anchor rod in a soft soil stratum.
Background
The anti-floating anchor rod is a general name of various pile types for resisting upward displacement of a building, when the anti-floating anchor rod is constructed, an anchor hole is drilled in a soil layer through a drilling machine, a T-shaped anchor hole needs to be formed by using a hole expanding drilling machine, then the anti-floating anchor rod is inserted into the anchor hole, sand and stone are filled, mortar is injected into the anchor hole, and in the process, the T-shaped anchor hole is formed for forming a T-shaped pile subsequently so as to achieve the aim of resisting floating; in a soft soil stratum, after drilling, the soil layer is unstable, and hole collapse is easy to occur.
In the related art, generally, after drilling is finished, a pile casing is inserted into an anchor hole to prevent hole collapse.
Aiming at the related technology, the inventor thinks that the protective cylinder can prevent the soil layer of the vertical section of the T-shaped anchor hole from collapsing because the arranged anchor hole is T-shaped, but because the top wall bearing capacity of the T-shaped hole expansion section is large, and the protective cylinder in the related technology can not protect the top wall of the expansion section of the T-shaped anchor hole, the T-shaped anchor hole is easy to collapse at the expansion section position in the actual construction process of the soft soil stratum.
Disclosure of Invention
In order to improve the condition that a T-shaped anchor hole in a soft soil stratum is easy to collapse at an expansion section, the application provides a construction method of an anti-floating anchor rod in the soft soil stratum.
The application provides a soft soil stratum anti-floating anchor rod construction method, adopts following technical scheme:
a construction method of an anti-floating anchor rod in a soft soil stratum comprises the following steps: step 1, a hole expanding drill bit is used for forming an anchor hole in a soil layer through a drilling machine, and the anchor hole is T-shaped;
step 3, inserting an anchor rod into the protective sleeve;
it supplies the stock to insert to protect a section of thick bamboo, it is used for stretching out to protect an internal sliding connection have the bracing piece that protects a section of thick bamboo, the bracing piece is used for stretching out and protects a section of thick bamboo with the butt anchor eye expansion section roof, and the stock inserts protect the in-process drive of a section of thick bamboo the bracing piece stretches out protect a section of thick bamboo.
By adopting the technical scheme, after the anchor hole is formed, the protective sleeve is inserted into the anchor hole, then the protective sleeve is positioned to a proper position, the anchor rod is inserted into the protective sleeve, the support rod is pushed to extend out of the protective sleeve in the process that the anchor rod is inserted into the protective sleeve, and the support rod is abutted against the top wall of the anchor hole expansion section, so that the top wall of the anchor hole expansion section can be prevented from collapsing to a certain extent, and the condition that the hole collapse is easily generated at the position of the expansion section of the T-shaped anchor hole in the soft soil stratum is improved.
Optionally, the bracing piece is located protect one end in the section of thick bamboo and supply the one side of stock butt is the inclined plane, the inclined plane height is along being close to protect a section of thick bamboo axis direction and reduce gradually.
Through adopting above-mentioned technical scheme, the stock inserts the in-process of protecting a section of thick bamboo, stock butt inclined plane to can promote the bracing piece and stretch out and protect a section of thick bamboo, through the setting on bracing piece inclined plane, insert the in-process that protects a section of thick bamboo at the stock, the bracing piece is automatic to be stretched out and protects a section of thick bamboo, simple structure, convenient operation.
Optionally, the bracing piece is followed it is provided with a plurality ofly to protect a circumference equidistance of a section of thick bamboo, fixedly connected with gasbag on the bracing piece lateral wall, the gasbag inflation is with the next adjacent bracing piece of butt, it is right to be equipped with on the section of thick bamboo to protect the inflatable module of gasbag.
Through adopting above-mentioned technical scheme, the bracing piece butt is when anchor eye expansion section roof, dashes the gasbag through inflatable components to gasbag inflation and butt are on next adjacent bracing piece, thereby further support anchor eye expansion section roof, further prevent that anchor eye expansion section roof from producing and cave in.
Optionally, the inflation assembly comprises a piston and a push rod, a communicating hole is formed in the protection cylinder, an inflation hole communicated with the airbag is formed in the support rod, the support rod extends out of the protection cylinder, the communicating hole is aligned with the inflation hole, the piston is arranged in the communicating hole, and the push rod is connected with the piston and used for driving the piston to move.
Through adopting above-mentioned technical scheme, when aerifing the gasbag, promote the push rod, drive the piston and remove, the piston removes then can aerify the gasbag to make the gasbag inflation, this inflation assembly simple structure, convenient operation.
Optionally, a containing groove for containing the air bag is formed in the side wall of the supporting rod, the air bag is fixed in the containing groove, and a cover plate for opening and closing the containing groove is arranged on the air bag.
Through adopting above-mentioned technical scheme, accomodate the setting of groove and apron, be convenient for accomodate the gasbag to make things convenient for wearing out that the bracing piece can be stable and protect a section of thick bamboo.
Optionally, the cover plate is fixedly connected with a guide block, and the outer wall of the casing is provided with a guide groove for the guide block to slide.
Through adopting above-mentioned technical scheme, lead to the inflation direction of gasbag, the setting of guide block and guide way has strengthened the stability of gasbag simultaneously to promote the bearing capacity of gasbag.
Optionally, a clamping groove for a cover plate on the other support rod to slide into is formed in the side wall of one of the adjacent support rods.
Through adopting above-mentioned technical scheme, the back in the draw-in groove is gone into to the apron card, makes a plurality of bracing pieces connect into whole, has further strengthened the bearing capacity of bracing piece.
Optionally, the upper end of the casing is fixedly connected with a scrap edge which is abutted against a soil layer.
By adopting the technical scheme, the pile casing can be conveniently positioned in the anchor hole.
To sum up, the application comprises the following beneficial technical effects:
this application is after seting up the anchor eye, will protect a section of thick bamboo and insert the anchor eye, then the location protects a section of thick bamboo to suitable position, again inserts the stock in protecting a section of thick bamboo, and the stock inserts the in-process that protects a section of thick bamboo, promotes the bracing piece and stretches out and protect a section of thick bamboo, and the bracing piece butt is at anchor eye expansion section roof to can prevent to a certain extent that anchor eye expansion section roof from producing and collapsing, improved soft soil stratum T shape anchor eye and produced the condition of collapsing easily in expansion section position department.
Drawings
Fig. 1 is a cross-sectional view of an overall structure of a soft soil stratum anti-floating anchor rod construction method applied to a soil layer according to an embodiment of the application;
fig. 2 is a schematic structural diagram of the whole soft soil stratum anti-floating anchor rod construction method according to the embodiment of the application;
FIG. 3 is an enlarged schematic view of area A of FIG. 1;
fig. 4 is an exploded view of the partial structure of fig. 2.
Description of reference numerals:
1. protecting the cylinder; 2. an anchor eye; 3. a vertical section; 4. an expansion section; 5. lapping; 6. a support bar; 7. a through groove; 8. a conical head; 9. a bevel; 10. a receiving groove; 11. an air bag; 12. a cover plate; 13. a card slot; 14. a notch; 15. a guide block; 16. a guide groove; 17. a piston; 18. a push rod; 19. an inflation hole; 20. a communicating hole; 21. a handle; 22. a connecting rod; 23. an anchor rod.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a construction method of an anti-floating anchor rod in a soft soil stratum. Referring to fig. 1 and 2, the method includes the following steps: step 1, drilling an anchor hole 2 in a soil layer by using a hole expanding drill bit through a drilling machine, wherein the anchor hole 2 is T-shaped;
step 3, inserting an anchor rod 23 into the pile casing 1;
protect a 1 and be arranged in inserting anchor eye 2, protect a 1 confession stock 23 coaxial insertion, anchor eye 2 is T shape, and anchor eye 2 includes vertical section 3 and expansion section 4, protects 1 upper end fixedly connected with of a section of thick bamboo and is used for the scrap (bridge) 5 on butt ground, and 5 thickness directions on the scrap (bridge) set up along protecting 1 length direction of a section of thick bamboo, and the scrap (bridge) 5 butt is subaerial time, protects 1 tip under the section of thick bamboo and extends to anchor eye 2 expansion section 4 position department.
Referring to fig. 2 and 3, the part that protects 1 lower extreme of a section of thick bamboo and is located 4 positions of anchor eye 2 expansion section is sliding connection to have a plurality of bracing pieces 6 that are used for stretching out and protect a section of thick bamboo 1, a plurality of bracing pieces 6 are along protecting 1 circumference equidistance setting of a section of thick bamboo, in this embodiment, bracing piece 6 sets up to six, bracing piece 6 is used for stretching out and protects a section of thick bamboo 1 with 4 roof of butt anchor eye 2 expansion section, bracing piece 6 sliding direction and length direction all along protecting 1 radial setting of a section of thick bamboo, it provides logical groove 7 that supplies bracing piece 6 to wear out to protect to set up on 1, bracing piece 6 and logical groove 7 inner wall have certain frictional force, in order to prevent that bracing piece 6 breaks away from logical groove 7, stock 23 inserts the in-process drive bracing piece 6 that protects a section of thick bamboo 1 and stretches out and protects a section of thick bamboo 1.
23 lower extreme fixedly connected with conical head 8 of stock, 8 awl point orientations of conical head, conical head 8 with protect 1 inner wall adaptation of a section of thick bamboo, it has the through-hole to run through on the conical head 8, the through-hole can be supplied the cement thick liquid to pass through, bracing piece 6 is located the one end of protecting 1 outside of a section of thick bamboo and protects 1 outer wall level at ordinary times, bracing piece 6 is located and protects the partial upper surface in 1 of a section of thick bamboo and be inclined plane 9, inclined plane 9 supplies 8 butts of conical head, inclined plane 9 highly reduces along being close to 1 axis direction of protecting gradually.
In another embodiment, the anti-falling structure of the support bar 6 may be implemented by fixing a protrusion on the bottom surface of the through groove 7, forming a sliding groove on the bottom surface of the support bar 6 for the protrusion to slide, and blocking the protrusion in the sliding groove, so as to prevent the support bar 6 from falling off the casing 1.
Referring to fig. 3 and 4, in the present embodiment, a receiving groove 10 is formed on a side wall of a support rod 6, an air bag 11 is fixedly connected in the receiving groove 10, a cover plate 12 for opening and closing the receiving groove 10 is fixedly connected to the air bag 11, the cover plate 12 is inserted into the receiving groove 10, and a clamping groove 13 for the cover plate 12 on another support rod 6 to slide into is formed on a side wall of one support rod 6 adjacent to the adjacent support rod 6; set up jaggedly 14 on bracing piece 6, apron 12 is in breach 14 position fixedly connected with connecting rod 22, connecting rod 22 is L shape, connecting rod 22 keeps away from the one end fixedly connected with guide block 15 of apron 12, guide block 15 is the sphere, offer on protecting a section of thick bamboo 1 outer wall and supply the gliding guide way 16 of guide block 15, it is used for the gas filled subassembly to gasbag 11 to be equipped with on protecting a section of thick bamboo 1, gasbag 11 inflation is with the next adjacent bracing piece 6 of butt and drive guide block 15 and slide so that apron 12 pegs graft in draw-in groove 13 on next adjacent bracing piece 6 along guide way 16.
The inflation assembly comprises a piston 17 and a push rod 18, the upper surface of the protection barrel 1 is provided with communicating holes 20 corresponding to the number of the support rods 6, the support rods 6 are provided with inflation holes 19 communicated with the air bags 11, the support rods 6 extend out of the protection barrel 1, the communicating holes 20 are aligned with the inflation holes 19, when the communicating holes 20 are aligned with the inflation holes 19, the guide blocks 15 are aligned with the guide grooves 16, the gaps 14 are aligned with the guide grooves 16, the piston 17 is arranged in the communicating holes 20, the push rod 18 is fixedly connected to the upper surface of the piston 17, the length direction of the push rod 18 is arranged along the length direction of the protection barrel 1, and the upper end of the push rod 18 is fixedly connected with a handle 21 (refer to fig. 1).
In summary, the construction method of the anti-floating anchor rod in the soft soil stratum in the embodiment of the application comprises the following construction steps: step 1, a hole expanding drill bit is used for forming a T-shaped anchor hole 2 in a soil layer through a drilling machine;
and 2, inserting the protective sleeve 1 until the lap 5 abuts against the ground.
And 3, inserting an anchor rod 23 into the pile casing 1, extending the support rod 6 out of the pile casing 1 under the action of the anchor rod 23, aligning the inflation inlet with the communication hole 20, and aligning the guide block 15 with the guide groove 16.
And 4, pushing the push rod 18 downwards to inflate the air bag 11, expanding the air bag 11, and driving the guide block 15 to move by the cover plate 12 until the cover plate 12 is clamped in the clamping groove 13 of the next adjacent support rod 6, so that the top wall of the expansion section 4 of the T-shaped anchor hole 2 can be supported to prevent hole collapse.
And 5, pouring sand and stone in the T-shaped anchor hole 2, and then grouting.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A construction method of an anti-floating anchor rod in a soft soil stratum is characterized by comprising the following steps: the method comprises the following steps: step 1, drilling an anchor hole (2) in a soil layer by using a hole-expanding drill bit through a drilling machine, wherein the anchor hole (2) is T-shaped;
step 2, inserting a pile casing (1) into the anchor hole (2), and fixing the pile casing (1);
step 3, inserting an anchor rod (23) into the pile casing (1);
protect a section of thick bamboo (1) and supply stock (23) to insert, it is used for stretching out to protect sliding connection in a section of thick bamboo (1) bracing piece (6) of a section of thick bamboo (1), bracing piece (6) are used for stretching out and protect a section of thick bamboo (1) with the butt anchor hole (2) expansion section (4) roof, stock (23) insert protect the in-process drive of a section of thick bamboo (1) bracing piece (6) stretch out protect a section of thick bamboo (1).
2. The soft soil stratum anti-floating anchor rod construction method according to claim 1, characterized in that: the bracing piece (6) are located protect one end in a section of thick bamboo (1) and supply the one side of stock (23) butt is inclined plane (9), inclined plane (9) highly along being close to protect a section of thick bamboo (1) axis direction to reduce gradually.
3. The soft soil stratum anti-floating anchor rod construction method according to claim 1, characterized in that: the bracing piece (6) are followed protect a section of thick bamboo (1) circumference equidistance and be provided with a plurality ofly, fixedly connected with gasbag (11) on bracing piece (6) lateral wall, gasbag (11) expand with the next adjacent bracing piece of butt (6), it is right to be equipped with on protecting a section of thick bamboo (1) be used for gasbag (11) inflatable pneumatic module.
4. The soft soil stratum anti-floating anchor rod construction method according to claim 3, characterized in that: the inflation assembly comprises a piston (17) and a push rod (18), a communicating hole (20) is formed in the protection tube (1), an inflation hole (19) communicated with the air bag (11) is formed in the support rod (6), the support rod (6) extends out of the protection tube (1), the communicating hole (20) is aligned with the inflation hole (19), the piston (17) is arranged in the communicating hole (20), and the push rod (18) is connected with the piston (17) and used for driving the piston (17) to move.
5. The soft soil stratum anti-floating anchor rod construction method according to claim 3, characterized in that: offer on bracing piece (6) lateral wall and be used for accomodating accomodate groove (10) of gasbag (11), gasbag (11) are fixed accomodate in groove (10), be equipped with on gasbag (11) and be used for opening and close accomodate apron (12) of groove (10).
6. The soft soil stratum anti-floating anchor rod construction method according to claim 5, characterized in that: the guide block (15) is fixedly connected to the cover plate (12), and a guide groove (16) for the guide block (15) to slide is formed in the outer wall of the pile casing (1).
7. The soft soil stratum anti-floating anchor rod construction method according to claim 5, characterized in that: and a clamping groove (13) for a cover plate (12) on the other support rod (6) to slide into is formed in the side wall of one of the adjacent support rods (6).
8. The soft soil stratum anti-floating anchor rod construction method according to claim 1, characterized in that: the upper end of the pile casing (1) is fixedly connected with a scrap (5) which is used for being abutted against a soil layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278345.XA CN113944161B (en) | 2021-10-30 | 2021-10-30 | Soft soil stratum anti-floating anchor rod construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111278345.XA CN113944161B (en) | 2021-10-30 | 2021-10-30 | Soft soil stratum anti-floating anchor rod construction method |
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| CN113944161A true CN113944161A (en) | 2022-01-18 |
| CN113944161B CN113944161B (en) | 2022-11-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116180768A (en) * | 2023-03-16 | 2023-05-30 | 中国十九冶集团有限公司 | Construction device and construction method for anti-floating anchor rod of building engineering |
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| CN113944161B (en) | 2022-11-29 |
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