CN112726587A - Mechanical light nailing anchoring pile and construction method - Google Patents
Mechanical light nailing anchoring pile and construction method Download PDFInfo
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- CN112726587A CN112726587A CN202011508229.8A CN202011508229A CN112726587A CN 112726587 A CN112726587 A CN 112726587A CN 202011508229 A CN202011508229 A CN 202011508229A CN 112726587 A CN112726587 A CN 112726587A
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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
- E02D5/22—Piles
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
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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
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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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
- E02D5/72—Pile shoes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Abstract
The invention discloses a mechanical light nailing anchoring pile and a construction method. The anchoring pile comprises an anchoring pile body, a pile cap arranged at the upper end of the anchoring pile body, a pile shoe arranged at the lower end of the anchoring pile body, a drilling mechanism arranged at the bottom of the pile shoe and an impact pile; the anchoring pile body comprises an outer pipe and an inner pipe which is arranged on the inner side of the outer pipe and can be separated under the action of radial pressure, a plurality of spikes are distributed on the outer wall of the inner pipe, and a plurality of holes matched with the spikes are formed in the outer pipe; the inner tube is formed by splicing a plurality of segments, the inner tube expands along the radial direction after the impact pile is driven in, and the nail on the outer wall of the inner tube penetrates through the hole to be unfolded. According to the invention, the nail pricks on the inner pipe penetrate into the soil stratum to form the anti-pulling bearing capacity, so that the anti-pulling bearing capacity can be quickly formed under the non-grouting working condition, and the pile can be used after being driven in on site through the light anchoring pile, thereby meeting the requirement of quick emergency repair and emergency rescue.
Description
Technical Field
The invention belongs to the field of geotechnical engineering, and particularly relates to a mechanical light nailing anchoring pile and a construction method.
Background
The prior anchoring technology adopts a drilling grouting technology, and has the following limitations: firstly, after grouting, the anchoring body forms uplift bearing capacity and needs a maintenance period, and the effective time of the anchoring capacity is long; secondly, the grouting construction process is complex, the weight of raw materials is large, and the transportation is difficult. Particularly, the rapid anchoring emergency repair is still an urgent problem to be solved in emergency rescue aiming at mountainous areas with inconvenient traffic and damage of natural disasters. The applicant team has made earlier research on light-duty anchor piles, such as chinese patents CN2019104288010, CN 2020100904942, and the like, and now further develops a mechanical light-duty nailing anchor pile through some mechanical means.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a mechanical light nailing anchoring pile and a construction method. The invention can realize quick installation by arranging the nailing anchoring pile, and can be directly used after being driven in the field.
The technical scheme is as follows: the invention relates to a mechanical light-duty nailing anchoring pile, which comprises an anchoring pile body, a pile cap arranged at the upper end of the anchoring pile body, a pile shoe arranged at the lower end of the anchoring pile body, a drilling mechanism arranged at the bottom of the pile shoe and an impact pile; the anchoring pile body comprises an outer pipe and an inner pipe which is arranged on the inner side of the outer pipe and can be separated under the action of radial pressure, a plurality of spikes are distributed on the outer wall of the inner pipe, and a plurality of holes matched with the spikes are formed in the outer pipe; the inner tube is formed by splicing a plurality of segments, the inner tube expands along the radial direction after the impact pile is driven in, and the nail on the outer wall of the inner tube penetrates through the hole to be unfolded.
The outer diameter of the impact pile is the same as the inner diameter of the outer pipe.
The inner wall of the outer pipe is provided with a groove for accommodating the pipe piece.
The inner pipe is composed of a plurality of thin-wall pipe pieces with arc-shaped sections, each pipe piece is connected into a hollow inner pipe through a joint, and a plurality of nails arranged at intervals are fixedly bonded on the outer wall of each pipe piece.
Each pipe piece is connected through a joint of the cold joint, the cold joint of the inner pipe fails in restraint under the action of the impact pile, and the inner pipe expands to the groove of the outer pipe wall along the radial direction.
The pipe piece of the inner pipe is made of fiber reinforced composite materials or PVC pipes.
The drill bit including set up in the inboard drilling rod of inner tube and set up in the drill bit of drilling rod bottom, the diameter of drilling rod is less than the internal diameter of inner tube, the maximum diameter of drill bit is the same with the inner diameter of inner tube.
The diameter of the pipe boot gradually increases along the direction from the bottom end to the top end, and the pipe boot comprises a limiting ring arranged at the top of the pipe boot and a hollow pipe boot body arranged at the bottom end of the limiting ring; the inner wall and the outer wall of the joint of the limiting ring and the pipe boot body are respectively provided with a first step for limiting the position of the inner pipe and a second step for limiting the position of the outer pipe, the inner diameter of the limiting ring is the same as the outer diameter of the inner pipe, and the outer diameter of the limiting ring is the same as the inner diameter of the outer pipe.
The impact pile comprises an impact rod and a matching shoe arranged at the lower end of the impact rod and gradually increased in diameter along the direction from the bottom end to the top end, a hollow impact pipeline used for accommodating a drill rod is arranged in the impact rod, an inclined plane matched with the bottom end of the impact pile is formed on the inner wall of a limiting ring, the minimum diameter of the matching shoe is the same as the diameter of the drill rod, and the maximum diameter of the matching shoe is the same as the inner diameter of an outer pipe.
The nail pricks are perpendicular to the anchoring pile body.
The construction method of the mechanical light nailing anchoring pile comprises the following steps:
(S1) fixing the inner pipe and the outer pipe on a limiting ring formed by the inner wall and the outer wall of the pile shoe to restrain the inner pipe and the outer pipe;
(S2) sleeving the pile body assembled in the step (S1) on the periphery of a drilling mechanism;
(S3) drilling a hole in the rock formation using a auger drill, the anchor pile reaching a predetermined position with the drill bit under static pressure;
(S4) releasing the restraint between the inner tube and the outer tube;
(S5) driving impact piles into the hollow anchoring pile body, enabling the constraint of the inner pipe to be invalid after the impact piles are driven, expanding and expanding the inner pipe outwards along the radial direction, and enabling spikes on the inner pipe to penetrate into surrounding soil or rocks to form a pulling-resistant bearing capacity, wherein pipe pieces forming the inner pipe are attached to the inner wall of the groove under the extrusion of the impact piles;
(S6) impacting the pile to drive into a preset position, fully unfolding the nail, and installing a pile cap to finish construction.
Has the advantages that: (1) according to the invention, through the inner pipe capable of being radially expanded and the nail pricks arranged on the outer wall of the inner pipe, the soil layer rock stratum can be driven into under the action of the impact pile, the uplift bearing capacity is quickly formed, the instant use is realized, and the requirement of quick emergency repair and emergency rescue is met; (2) according to the invention, the pile shoe matched with the inner pipe, the outer pipe and the impact pile is arranged, so that the early-stage quick assembly and positioning of the inner pipe and the outer pipe are realized, and the installation efficiency of the anchor pile in-situ construction is ensured; (3) the hollow pipeline matched with the drilling mechanism is arranged in the impact pile, so that the impact pile can be driven into the anchoring pile on site; (4) according to the invention, the impact pile is driven into a position matched with the pipe shoe, the assembly is finished, and meanwhile, the inner wall of the outer pipe is provided with a groove for accommodating the inner pipe segment, so that the inner pipe segment is attached to the groove on the inner wall of the outer pipe, the inner pipe, the outer pipe and the impact pile can be attached into a whole, and the strength of a newly formed structure is not influenced; (5) according to the invention, the anchoring pile body is prepared from the light anchoring pile material, so that the transportation cost is reduced; (6) the nail-thorn-shaped structure can quickly form the pulling-resistant bearing capacity under the non-grouting working condition, and the rapidness is realized.
Drawings
FIG. 1 is a cross-sectional view of the relative positions of the outer tube (not slotted) and the inner tube at the top end of the anchor pile of the present invention;
FIG. 2 is a cross-sectional view of the relative positions of the outer tube (slot) and the inner tube in the middle of the anchor pile of the present invention;
FIG. 3 is a cross-sectional view of the anchoring pile of the present invention in a middle portion of the anchoring pile in an unexpanded state;
FIG. 4 is a schematic structural view of a staple of the present invention;
FIG. 5 is a schematic perspective view of a staple of the present invention;
FIG. 6 is a cross-sectional view of the drilling mechanism of the present invention;
FIG. 7 is a cross-section of an impact pile of the present invention;
FIG. 8 is a top fixing view (not unfolded) of the inner and outer pipes of the pile body of the invention;
FIG. 9 is a sectional view of the assembled pile shoe and pile body of the present invention (not shown);
FIG. 10 is a schematic structural view showing a sectional view (spike deployment) of the assembly of the shoe and the pile body according to the present invention;
fig. 11 is a schematic view showing the structure of the entire anchor pile after the impact pile of the present invention is driven.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
Example 1: the invention relates to a mechanical light-duty nailing and nailing anchor pile, which comprises an anchor pile body 10, a pile cap 20 arranged at the upper end of the anchor pile body 10, a pile shoe 30 arranged at the lower end of the anchor pile body 10, a drilling mechanism 40 arranged at the bottom of the pile shoe 30 and an impact pile 50. The axial direction in the invention is the direction of the Y axis in fig. 10, the radial direction is the direction parallel to the direction of the X axis in fig. 10, and the radial pressure is the acting force which takes the axial center line of the anchor pile as the starting point and extrudes outwards.
The anchor pile body 10 includes an outer tube 101 and an inner tube 102 disposed inside the outer tube 101 and capable of being separated under the action of radial (squeezing) pressure, the outer tube 101 and the inner tube 102 are both hollow tubular structures, the inner tube and the outer tube are coaxially disposed, and the outer tube 101 is made of high-strength materials, such as steel, aluminum alloy and titanium alloy.
As shown in fig. 1 and 2, a plurality of spikes 103 are distributed on the outer wall of the inner tube 102, in this embodiment, the spikes 103 are arranged perpendicular to the outer wall of the inner tube 102, a plurality of holes 104 matched with the spikes 103 are arranged on the outer tube 101, specifically, the inner tube 102 is formed by splicing a plurality of tube sheets 1021, as the inner tube 102 expands outwards along the radial direction (circumferential direction), the spikes 103 on the outer wall of the inner tube 102 penetrate through the holes 104 to expand, the inner tube 102 is composed of a plurality of thin-wall tube sheets 1021 with circular arc-shaped cross-section, each tube sheet 1021 is connected into a hollow inner tube 102 through a joint 106, a plurality of spikes 103 arranged at intervals are fixed on the outer wall of the tube sheet 1021, a groove 105 for accommodating the tube sheet 1021 is arranged on the inner wall of the outer tube 101, and the shape and size of the; in the embodiment, the inner tube 102 is formed by splicing four tube sheets 1021 consisting of thin walls with the section shape of 1/4 circular arcs, each tube sheet 1021 forms a joint 106 through a cementing or cold welding process, the tube sheets 1021 are connected into a hollow tube, a plurality of spikes 103 arranged at certain intervals are fixedly connected on the tube sheets 1021, and the tube sheets 1021 of the inner tube 102 are made of high-elasticity easily-deformable materials such as fiber reinforced composite materials which are easy to open in the radial direction, PVC tubes and the like; when the inner tube 102 is expanded by the radially outward pressing force, the dispersed segments 1021 are fitted into the grooves 105 provided in the inner wall of the outer tube 101, and, similarly, in order to match with the pipe piece 1021, the shape of the groove 105 on the inner wall of the pipe 101 in this embodiment is the same as that of the pipe piece 1021, the depth of the groove 105 is the same as that of the pipe piece 1021, since the area of the outer wall of the inner tube 102 is smaller than the area of the inner wall of the outer tube 101, there are raised mesas between the grooves 105 formed on the inner wall of the outer tube 101 (i.e. the inner wall of the outer tube 101 not provided with the grooves 105, the inner diameter of the outer tube 101 described in this embodiment is also the diameter of the inner wall before the grooves 105 are formed), in this embodiment, after the inner tube 102 is spread under tension by the four grooves 105 corresponding to the tube piece 1021 formed on the inner wall of the outer tube 101, and the tube piece 1021 is attached to the inner wall of the outer tube 101, so that the outer tube 101 and the inner tube 102 after the spikes 103 are unfolded form a tubular structure.
As shown in fig. 3, in the present embodiment, a row of spikes 103 is uniformly arranged on the outer wall of each tube piece 1021 along the axial direction, the spikes 103 are perpendicular to the anchoring pile body 10 (pile body) or perpendicular to the outer wall of the inner tube 102, as shown in fig. 4 and 5, the end of the spike in the present embodiment, to which the tube piece 1021 is fixed, is a semi-cylinder, the end of the spike 103 is a semi-conical surface, and the cross section of the spike 103 is perpendicular to the pile body, i.e. the upper end surface of the whole spike 103 is parallel to the ground, so that the pulling resistance bearing capacity of the spike is increased; the nail 103 is made of high-strength metal material; holes 104 corresponding to the spikes 103 in a one-to-one manner are formed in the outer tube 101 at positions corresponding to the spikes 103, and the spikes 103 penetrate through the holes 104 under the action of radial pressure to penetrate into the surrounding soil or rock to form the anti-pulling bearing capacity.
As shown in figure 6, the drilling mechanism 40 is arranged in the invention, the drilling mechanism 40 comprises a drill rod 401 arranged inside the drill pipe 102 and a drill bit 402 arranged at the bottom end of the drill rod 401, the drill rod 401 is also coaxially arranged with the inner pipe 102 and is positioned at the axial central line of the inner pipe 102, the diameter of the drill rod 401 is smaller than the inner diameter of the inner pipe 102, the maximum diameter of the drill bit 402 is the same as the inner diameter of the inner pipe 102, the drill bit 402 connected with the bottom end of the drill rod 401 is also positioned at the bottom end of the anchor pile, and the anchor pile 1 is driven into a preset.
As shown in fig. 7, the impact pile 50 includes an impact rod 501 and a fitting shoe 502 arranged at the lower end of the impact rod 501 and having a diameter gradually increasing from the bottom end to the top end, a hollow impact pipeline 503 for accommodating the drill rod 401 is arranged in the impact rod 501, when the anchor pile body 10 and the drilling mechanism 40 are installed, and the impact pile 50 is driven into the anchor pile body 10, the drill rod 401 penetrates the impact pipeline 503, so that the impact pile 50 can be smoothly driven into the anchor pile body 10, and the impact pile 50 can extrude the inner tube 102. In this embodiment, the diameter of the impact pipe 503 is the same as the diameter of the drill rod 401, the minimum diameter (the diameter of the bottom end of the mating shoe 502) of the impact pile 50 is the same as the diameter of the drill rod 401, the maximum diameter (the outer diameter of the impact rod 501) is the same as the inner diameter of the outer pipe 101, and the impact pile 50 is integrally formed.
As shown in fig. 8, in order to make the nail 103 smoothly stabbed out by the impact pile 50, at least the sum of the length (radial length) of the nail and the radius of the impact pile 50 is larger than the radius of the outer tube 101, in this embodiment, the outer diameter of the impact pile 50 is the same as the inner diameter of the outer tube 101, so that the nail 103 can be completely stabbed out, and the pulling-resistant bearing capacity is increased. Likewise, in order to facilitate the installation of the nailing structure in the deployed state, the length of the nail 103 added to the radius of the inner tube does not exceed the outer diameter of the outer tube, and the diameter of the inner tube should be as small as possible and the length of the nail should be as long as possible while ensuring that the drill rod can work properly.
As shown in fig. 9, the diameter of the pipe shoe 30 gradually increases along the direction from the bottom end to the top end, the pipe shoe 30 includes a limiting ring 301 disposed at the top and a hollow pipe shoe body 302 disposed at the bottom end of the limiting ring 301, the pipe shoe body 302 is a circular truncated cone structure whose diameter gradually increases from the bottom to the top and a cylindrical structure disposed above the circular truncated cone structure, the lower end of the pipe shoe body 302 is a drill bit 402, the drill bit 402 is connected with a drill rod 401 fixed to the drill bit 402, and the drill rod 401 penetrates through the anchor pile body 10 from the central axis of the anchor pile body 10 to fix the drill bit 402.
The limiting ring 301 is arranged on the outer wall above the pipe shoe body 302 and is of a cylindrical structure, the inner wall of the limiting ring 301 is of a structure matched with the matching shoe 502 of the impact pile 50, the section of the inner wall of the limiting ring 302 is an inclined surface, the inner wall and the outer wall of the joint of the limiting ring 301 and the pipe shoe body 302 are respectively provided with a first step 303 for limiting the position of the inner pipe 102 and a second step 304 for limiting the position of the outer pipe 101, namely, the first step 303 and the second step 304 are platform structures with circular ring-shaped cross sections protruding towards two sides and arranged at the joint of the limiting ring 301 and the pipe boot body 302, the inner pipe and the outer pipe are abutted on the surface of the platform, so the inner diameter of the limiting ring 301 is the same as the outer diameter of the inner pipe 102, the outer diameter of the limiting ring 301 is the same as the inner diameter of the outer pipe 101, the bottom end of the inner pipe 102 is arranged at a first step 303 formed on the inner wall of the pipe shoe 30, and the bottom end of the outer pipe 101 is arranged at a second step 304 formed on the outer wall of the pipe shoe 30; the inner wall of the limiting ring 301 forms an inclined plane matched with the bottom end of the impact pile 50, the slope of the inclined plane is matched with the inclined plane of the impact pile 50, the pipe shoe is made of steel, and the process is integrated.
The construction method of the mechanical light nailing anchoring pile in the embodiment comprises the following steps:
step 1: fixing the inner pipe 102 and the outer pipe 101 on a limiting ring 301 formed by the inner wall and the outer wall of the pile shoe 30, fixing the inner pipe 102 and the outer pipe 101 through an anchor 107, and restraining the inner pipe 102 and the outer pipe 101;
step 2: sleeving the pile body assembled in the step 1 on the periphery of the drilling mechanism 40;
and step 3: drilling a hole in a rock stratum by using a spiral drilling machine, and enabling the anchor pile to reach a preset position along with a drill bit 401 under static pressure;
and 4, step 4: releasing the anchor 107 constraint of the inner tube 102 and the outer tube 101;
and 5: driving an impact pile 50 with a matching shoe 502 into the hollow anchor pile body, wherein the impact pile 50 fails to restrain the inner pipe 102 after being driven, the inner pipe 102 expands and expands outwards along the radial direction, the spikes 103 on the inner pipe 102 penetrate into the surrounding soil or rock to form a pulling-resistant bearing capacity, and the pipe piece forming the inner pipe is pressed by the impact pile 50 and attached to the inner wall of the groove, as shown in fig. 10;
step 6: the impact pile 50 is driven into a preset position, the nail 103 is completely unfolded, the pile cap 20 is installed, the pile cap 20 can be in various forms, for example, the pile cap 20 is in an interference fit type, an anchor cable connection type and the like, so that the requirement of connecting the upper building is met, the construction is completed, and the state of the anchor pile after the construction is finished is shown in fig. 11.
Claims (10)
1. A mechanical light nailing and nailing anchoring pile is characterized by comprising an anchoring pile body (10), a pile cap (20) arranged at the upper end of the anchoring pile body (10), a pile shoe (30) arranged at the lower end of the anchoring pile body (10), a drilling mechanism (40) arranged at the bottom of the pile shoe (30) and an impact pile (50); the anchoring pile body (10) comprises an outer pipe (101) and an inner pipe (102) which is arranged on the inner side of the outer pipe (101) and can be separated under the action of radial pressure, a plurality of spikes (103) are distributed on the outer wall of the inner pipe (102), and a plurality of holes (104) matched with the spikes (103) are formed in the outer pipe (101); the inner pipe (102) is formed by splicing a plurality of pipe pieces (1021), the inner pipe (102) expands and expands outwards along the radial direction after the impact pile (50) is driven in, and the nail pricks (103) on the outer wall of the inner pipe (102) penetrate through the holes (104) and penetrate into the soil body.
2. A mechanical light-duty nailer anchor according to claim 1, characterised in that said impact stakes (50) have the same outer diameter as the inner diameter of said outer tube (101).
3. A mechanical light-duty studded anchor pile according to claim 2, characterized in that the inner wall of the outer tube (101) is provided with a groove (105) accommodating the tube sheet (1021).
4. A mechanical light-duty nailing anchor pile according to claim 1, wherein said inner tube (102) is composed of a plurality of thin-walled tube sheets (1021) with circular arc-shaped cross-section, each of said tube sheets (1021) is connected into a hollow inner tube (102) by a joint (106), and a plurality of nails (103) arranged at intervals are fixed on the outer wall of said tube sheets (1021).
5. A mechanical light-duty nailed anchor pile according to claim 1, characterised in that said segment (1021) of said inner pipe (102) is made of fibre reinforced composite or PVC pipe.
6. A mechanical light-duty nailing anchor pile according to claim 1, wherein the drilling mechanism (40) comprises a drill rod (401) arranged inside the inner tube (102) and a drill bit (402) arranged at the bottom end of the drill rod (401), the drill rod (401) having a diameter smaller than the inner diameter of the inner tube (102), the drill bit (402) having the largest diameter being the same as the inner diameter of the inner tube (102).
7. The mechanical light-duty nailing stake of claim 6, wherein the diameter of said tube shoe (30) increases gradually along the bottom end to top end direction, said tube shoe (30) comprising a spacing ring (301) disposed on the top of said tube shoe (30) and a hollow tube shoe body (302) disposed on the bottom end of the spacing ring (301); the inner wall and the outer wall of the joint of the limiting ring (301) and the pipe shoe body (302) are respectively provided with a first step (303) for limiting the position of the inner pipe (102) and a second step (304) for limiting the position of the outer pipe (101); the inner diameter of the limiting ring (301) is the same as the outer diameter of the inner pipe (102), and the outer diameter of the limiting ring (301) is the same as the inner diameter of the outer pipe (101).
8. The mechanical light-duty nailing and anchoring pile according to claim 7, wherein the impact pile (50) comprises an impact rod (501) and a matching shoe (502) which is arranged at the lower end of the impact rod (501) and gradually increases in diameter from bottom end to top end, a hollow impact pipeline (503) for accommodating a drill rod (401) is arranged in the impact rod (501), and the inner wall of the limiting ring (301) forms an inclined surface matched with the bottom end of the impact pile (50); the minimum diameter of the matching shoe (502) is the same as the diameter of the drill rod (401), and the maximum diameter of the matching shoe (502) is the same as the inner diameter of the outer pipe (101).
9. A mechanical light-duty nailed anchor pile according to claim 1, characterised in that said spikes (103) are perpendicular to said anchor pile body (10).
10. A method of constructing a mechanical light-duty nailing anchor pile according to any of claims 1-9, comprising the steps of:
(S1) fixing the inner pipe (102) and the outer pipe (101) on a limiting ring formed by the inner wall and the outer wall of the pile shoe (30) to restrain the inner pipe (102) and the outer pipe (101);
(S2) sleeving the pile body assembled in the step (S1) on the periphery of the drilling mechanism (40);
(S3) drilling a hole in the rock formation using a auger drill, the anchor pile reaching a predetermined position with the drill bit under static pressure;
(S4) releasing the restraint between the inner tube (102) and the outer tube (101);
(S5) driving a shock pile (50) into the hollow anchor pile body, wherein the restraint of the inner pipe (102) fails after the shock pile (50) is driven, the inner pipe (102) expands and expands outwards along the radial direction, the spikes (103) on the inner pipe (102) pierce the surrounding soil or rock to form the uplift bearing capacity, and the pipe piece forming the inner pipe is attached to the inner wall of the groove under the extrusion of the shock pile (50);
(S6) the impact pile (50) is driven into a preset position, the nail (103) is completely unfolded, and the pile cap (20) is installed, so that construction is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011508229.8A CN112726587B (en) | 2020-12-18 | 2020-12-18 | Mechanical light nailing anchoring pile and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011508229.8A CN112726587B (en) | 2020-12-18 | 2020-12-18 | Mechanical light nailing anchoring pile and construction method |
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| CN112726587A true CN112726587A (en) | 2021-04-30 |
| CN112726587B CN112726587B (en) | 2021-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658024A (en) * | 2022-04-08 | 2022-06-24 | 安徽兴鼎建设有限公司 | Residential pile foundation stabilizing structure and construction method |
| CN114658024B (en) * | 2022-04-08 | 2024-04-26 | 安徽兴鼎建设有限公司 | Residential pile foundation stabilizing structure and construction method |
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| CN106120821A (en) * | 2016-08-20 | 2016-11-16 | 三峡大学 | Root-type anchoring support device and slope anchorage method for protecting support thereof in a kind of |
| CN206860216U (en) * | 2017-06-24 | 2018-01-09 | 南京金宸建筑设计有限公司 | A kind of Pulling-Resistant Anchor Rod |
| KR101965406B1 (en) * | 2018-08-03 | 2019-04-03 | 정순국 | Nail assembly and construction method of nail using the same |
| CN111074885A (en) * | 2019-12-13 | 2020-04-28 | 济南市市政工程设计研究院（集团）有限责任公司 | Telescopic burr type anchor cable suitable for soft soil and construction method |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1294204A (en) * | 1969-11-10 | 1972-10-25 | Hikoitsu Watanabe | Ground anchor |
| CN106120821A (en) * | 2016-08-20 | 2016-11-16 | 三峡大学 | Root-type anchoring support device and slope anchorage method for protecting support thereof in a kind of |
| CN206860216U (en) * | 2017-06-24 | 2018-01-09 | 南京金宸建筑设计有限公司 | A kind of Pulling-Resistant Anchor Rod |
| KR101965406B1 (en) * | 2018-08-03 | 2019-04-03 | 정순국 | Nail assembly and construction method of nail using the same |
| CN111074885A (en) * | 2019-12-13 | 2020-04-28 | 济南市市政工程设计研究院（集团）有限责任公司 | Telescopic burr type anchor cable suitable for soft soil and construction method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114658024A (en) * | 2022-04-08 | 2022-06-24 | 安徽兴鼎建设有限公司 | Residential pile foundation stabilizing structure and construction method |
| CN114658024B (en) * | 2022-04-08 | 2024-04-26 | 安徽兴鼎建设有限公司 | Residential pile foundation stabilizing structure and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112726587B (en) | 2021-10-22 |
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