CN215888270U - Drilling rod is from taking steel strand wires drilling jet grouting device - Google Patents
Drilling rod is from taking steel strand wires drilling jet grouting device Download PDFInfo
- Publication number
- CN215888270U CN215888270U CN202121812242.2U CN202121812242U CN215888270U CN 215888270 U CN215888270 U CN 215888270U CN 202121812242 U CN202121812242 U CN 202121812242U CN 215888270 U CN215888270 U CN 215888270U
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- Prior art keywords
- drill bit
- drill
- drill rod
- tray
- steel strand
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009440 infrastructure construction Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Abstract
A drilling rotary-spraying grouting device for a drill pipe with a steel strand comprises a drill pipe, a steel strand and a tray; the middle of the disc surface of the tray is provided with a through hole, and the periphery of the disc surface of the tray is provided with connecting holes; the steel strands are correspondingly arranged in the connecting holes in a penetrating mode and are fixed through high-strength nuts; the drill rod comprises a drill rod unit, a bearing and a drill bit; at least two drill rod units are arranged, and adjacent drill rod units are connected through a first screw thread; the drill bit is connected to the end part of the drill rod unit at the foremost side, and the drill bit is connected with the drill rod unit through a second screw thread; the drill bit is of a hollow structure, and grouting holes are formed in the side wall of the drill bit at intervals; the bearing is sleeved on the outer side of the drill bit and is connected with the drill bit in a welding mode; a drill bit at the front end of the drill rod penetrates through the through hole, and a bearing on the drill bit is pressed on the disc surface of the tray; the tail end of the drill rod is connected with a drilling machine. The utility model solves the technical problems of low construction safety, poor quality and uneconomic performance of the traditional anchor cable.
Description
Technical Field
The utility model relates to the field of building construction, in particular to a drilling rotary spraying grouting device for a drill rod with a steel strand for special soil.
Background
With the continuous development of infrastructure construction and urbanization construction in China, complex geological working conditions such as deep foundation pits, medium liquefaction, high sensitivity, high water level and the like are more and more. Although the common anchor cable process is widely applied, the defects exist, firstly, the construction method of forming the hole in the common anchor cable firstly and then grouting the common anchor cable has a large amount of phenomena of water permeation, hole collapse and cracking in high-water-level, high-sensitivity and medium-liquefied soil, secondly, the design and support of a deep foundation pit requires that the anchor cable is longer in length and large in construction difficulty, and then the contact surface of an anchor cable anchoring body and the soil body in complex geology is small, the anchoring force is insufficient, and the stability of the foundation pit support is poor. How to ensure the construction quality of the anchor cable pore-forming in the deep foundation pit support, improve the axial drawing force of the anchor cable, facilitate the construction, become the key point of the technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drilling and rotary spraying grouting device for a drill rod with a steel strand, and aims to solve the technical problems of low construction safety, poor quality and uneconomic performance of the traditional anchor cable.
In order to achieve the purpose, the utility model adopts the following technical scheme.
A drilling rotary-spraying grouting device for a drill pipe with a steel strand comprises a drill pipe and a steel strand; also comprises a tray; the middle of the disc surface of the tray is provided with a through hole, and the periphery of the disc surface of the tray is provided with connecting holes; the steel strands are correspondingly arranged in the connecting holes in a penetrating mode and are fixed through high-strength nuts; the drill rod comprises a drill rod unit, a bearing and a drill bit; at least two drill rod units are arranged, and adjacent drill rod units are connected through a first screw thread; the drill bit is connected to the end part of the drill rod unit at the foremost side, and the drill bit is connected with the drill rod unit through a second screw thread; the drill bit is of a hollow structure, and grouting holes are formed in the side wall of the drill bit at intervals; the bearing is sleeved on the outer side of the drill bit and is connected with the drill bit in a welding mode; a drill bit at the front end of the drill rod penetrates through the through hole, and a bearing on the drill bit is pressed on the disc surface of the tray; the tail end of the drill rod is connected with a drilling machine.
Preferably, the high-strength nut is welded and connected to the back of the tray and the position corresponding to the connecting hole; and the end part of the steel strand sequentially passes through the through hole and the high-strength nut and is connected with the high-strength nut in a welding manner.
Preferably, the corrugated pipe is sleeved on the outer side of the free section of the steel strand.
Preferably, the midpoint of the drill bit coincides with the center of the perforation; the center of the perforation coincides with the center of the tray.
Preferably, the diameter of the tray is 130 mm-140 mm; the diameter of the through hole is 55 mm-65 mm; the diameter of the connecting hole is 16 mm-18 mm.
Compared with the prior art, the utility model has the following characteristics and beneficial effects.
1. The drill rod self-carrying steel strand drilling rotary spraying grouting device is additionally provided with the bearing at the drill bit, the bearing is brought into a soil body along with the drill bit at one time, then cement paste is subjected to high-pressure grouting to cut soil, the pressure is increased firstly and then decreased to enable the cement paste to be fused with the soil body, the acting range of the cement paste and the soil body is ensured through pressure control, a conical expanded head is finally formed, the drill and spray grouting and rod retreating at one time are completed at one time, the drill rod rotary spraying grouting device has operability and is convenient and rapid, hole cleaning and through hole forming time at the later stage is reduced through one-time grouting, and the effect is good and the overall quality is ensured.
2. The drill rod provided by the utility model is carried by the steel strand drilling and rotary spraying grouting device, so that a large amount of phenomena of water permeation, hole collapse and cracking in high-water-level, high-sensitivity and medium-liquefied soil are avoided, the quality of the steel strand is ensured, the stability of foundation pit support is improved, the construction period is integrally saved, the engineering organization is smooth, the integral construction period is advanced, the project cost is saved, the benefit is increased, and the labor force is saved.
3. The drilling and rotary spraying grouting device for the drill pipe with the steel strand expands the influence range on the soil body, quickly improves the acting force of the steel strand, can effectively improve the environment by fixing the anchor cable once formed, improves the construction safety of the foundation pit, and accelerates the construction progress.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a steel strand arranged on a tray in a penetrating manner.
Fig. 2 is a schematic view of the construction of the drill rod of the present invention.
FIG. 3 is a schematic structural view of a drill bit of the drill rod of the present invention having grouting holes.
Fig. 4 is a schematic view of the structure of the tray of the present invention.
FIG. 5 is a schematic structural diagram of a drilling rod self-contained steel strand drilling rotary jet grouting device.
Reference numerals: 1-drill rod, 1.1-drill rod unit, 1.2-first screw thread, 1.3-bearing, 1.4-drill bit, 1.5-second screw thread, 2-steel strand, 3-tray, 4-grouting hole, 5-perforation, 6-connecting hole, 7-high-strength nut and 8-corrugated pipe.
Detailed Description
As shown in figures 1-5, the drill rod self-provided steel strand drilling rotary jet grouting device comprises a drill rod 1 and a steel strand 2; also comprises a tray 3; a through hole 5 is formed in the middle of the disc surface of the tray 3, and connecting holes 6 are formed in the periphery of the disc surface of the tray 3; the steel strand 2 correspondingly penetrates through the connecting hole 6 and is fixed through a high-strength nut 7; the drill rod 1 comprises a drill rod unit 1.1, a bearing 1.3 and a drill bit 1.4; at least two drill rod units 1.1 are arranged, and the adjacent drill rod units 1.1 are connected through first screw threads 1.2; the drill bit 1.4 is connected to the end of the drill rod unit 1.1 at the most front side, and the drill bit 1.4 is connected with the drill rod unit 1.1 through a second screw thread 1.5; the drill bit 1.4 is of a hollow structure, and grouting holes 4 are formed in the side wall of the drill bit 1.4 at intervals; the bearing 1.3 is sleeved on the outer side of the drill bit 1.4 and is connected with the drill bit 1.4 in a welding mode; a drill bit 1.4 at the front end of the drill rod 1 penetrates through the through hole 5, and a bearing 1.3 on the drill bit 1.4 is pressed on the disc surface of the tray 3; the end of the drill rod 1 is connected with a drilling machine.
In the embodiment, the high-strength nut 7 is welded and connected to the back of the tray 3 and the position corresponding to the connecting hole 6; the end parts of the steel strands 2 sequentially penetrate through the through holes 5 and the high-strength nuts 7 and are connected with the high-strength nuts 7 in a welding mode.
In this embodiment, the corrugated pipe 8 is sleeved outside the free section of the steel strand 2.
In this embodiment, the midpoint of the drill bit 1.4 coincides with the center of the through hole 5; the centre of the perforation 5 coincides with the centre of the tray 3.
In the embodiment, the diameter of the tray 3 is 130 mm-140 mm; the diameter of the through hole 5 is 55 mm-65 mm; the diameter of the connecting hole 6 is 16 mm-18 mm.
The above embodiments are not intended to be exhaustive or to limit the utility model to other embodiments, and the above embodiments are intended to illustrate the utility model and not to limit the scope of the utility model, and all applications that can be modified from the utility model are within the scope of the utility model.
Claims (5)
1. A drilling rod self-provided steel strand drilling rotary spraying grouting device comprises a drilling rod (1) and a steel strand (2); the method is characterized in that: also comprises a tray (3); a through hole (5) is formed in the middle of the disc surface of the tray (3), and connecting holes (6) are formed in the periphery of the disc surface of the tray (3); the steel strand (2) correspondingly penetrates through the connecting hole (6) and is fixed through a high-strength nut (7); the drill rod (1) comprises a drill rod unit (1.1), a bearing (1.3) and a drill bit (1.4); at least two drill rod units (1.1) are arranged, and the adjacent drill rod units (1.1) are connected through first screw threads (1.2); the drill bit (1.4) is connected to the end of the drill rod unit (1.1) on the foremost side, and the drill bit (1.4) is connected with the drill rod unit (1.1) through a second screw thread (1.5); the drill bit (1.4) is of a hollow structure, and grouting holes (4) are formed in the side wall of the drill bit (1.4) at intervals; the bearing (1.3) is sleeved on the outer side of the drill bit (1.4) and is connected with the drill bit (1.4) in a welding mode; a drill bit (1.4) at the front end of the drill rod (1) penetrates through the through hole (5), and a bearing (1.3) on the drill bit (1.4) is pressed on the disc surface of the tray (3); the tail end of the drill rod (1) is connected with a drilling machine.
2. The drill rod self-strip steel strand drilling rotary spraying grouting device according to claim 1, characterized in that: the high-strength nut (7) is welded and connected to the back of the tray (3) and the position corresponding to the connecting hole (6); the end parts of the steel strands (2) sequentially penetrate through the through holes (5) and the high-strength nuts (7) and are connected with the high-strength nuts (7) in a welding mode.
3. The drill rod self-strip steel strand drilling rotary spraying grouting device according to claim 1, characterized in that: and a corrugated pipe (8) is sleeved on the outer side of the free section of the steel strand (2).
4. The drill rod self-strip steel strand drilling rotary spraying grouting device according to claim 1, characterized in that: the middle point of the drill bit (1.4) coincides with the center of the perforation (5); the center of the perforation (5) coincides with the center of the tray (3).
5. The drill rod self-strip steel strand drilling rotary spraying grouting device according to claim 1, characterized in that: the diameter of the tray (3) is 130 mm-140 mm; the diameter of the through hole (5) is 55 mm-65 mm; the diameter of the connecting hole (6) is 16 mm-18 mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812242.2U CN215888270U (en) | 2021-08-05 | 2021-08-05 | Drilling rod is from taking steel strand wires drilling jet grouting device |
| JP2022001221U JP3237887U (en) | 2021-08-05 | 2022-04-15 | Drilling jet grout injection device with steel stranded wire attached to drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121812242.2U CN215888270U (en) | 2021-08-05 | 2021-08-05 | Drilling rod is from taking steel strand wires drilling jet grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215888270U true CN215888270U (en) | 2022-02-22 |
Family
ID=80562984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121812242.2U Active CN215888270U (en) | 2021-08-05 | 2021-08-05 | Drilling rod is from taking steel strand wires drilling jet grouting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3237887U (en) |
| CN (1) | CN215888270U (en) |
-
2021
- 2021-08-05 CN CN202121812242.2U patent/CN215888270U/en active Active
-
2022
- 2022-04-15 JP JP2022001221U patent/JP3237887U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP3237887U (en) | 2022-06-13 |
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