CN204754799U - Gravity type precipitation well becomes well drill bit in tunnel - Google Patents
Gravity type precipitation well becomes well drill bit in tunnel Download PDFInfo
- Publication number
- CN204754799U CN204754799U CN201520429566.6U CN201520429566U CN204754799U CN 204754799 U CN204754799 U CN 204754799U CN 201520429566 U CN201520429566 U CN 201520429566U CN 204754799 U CN204754799 U CN 204754799U
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- tunnel
- flabellum
- drill bit
- drilling rod
- well
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- 230000005484 gravity Effects 0.000 title claims abstract description 15
- 238000001556 precipitation Methods 0.000 title abstract 4
- 241000883990 Flabellum Species 0.000 claims abstract description 27
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 238000003756 stirring Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model belongs to the technical field of tunnel precipitation construction, concretely relates to gravity type precipitation well becomes well drill bit in tunnel. The utility model discloses a solve the tunnel in gravity type become the difficult problem of well, provide a gravity type precipitation well becomes well drill bit in tunnel, including the drilling rod, the one end periphery of drilling rod is equipped with the sleeve pipe, is connected with a plurality of flabellums on the sleeve pipe, the flabellum be provided with two -layerly, first layer flabellum and second floor flabellum are arranged in turn. The drilling rod design is favorable to the transport to mud for hollow structure, double flabellum, in turn arrange and enable that the boring mud is fully smashed, the mud stirring, the discharge of the boring mud of being convenient for, consequently, the drill bit can be better cooperation geology bore the construction to construction quality is high, construction speed is fast, has solved the problem of ordinary rig unable construction in narrow and small space in the hole.
Description
Technical field
The utility model belongs to the technical field of tunnel dewatering construction, is specifically related to gravity dewatering well in tunnel and becomes well drill bit.
Background technology
Along with the fast development of high-speed railway and speedway, speciality, deep tunnel constantly increase, and special geology constructing tunnel increases gradually.Rich current husky constructing tunnel difficulty, safety factor are low, how solving water burst for the husky tunnel of rich current, to gush husky problem be badly in need of dealing with problems, gravity dewatering well is the effective ways reducing constructing tunnel scope of operation water level, tradition becomes well equipment cannot use in tunnel due to the restriction of tunnel space, therefore need to develop a kind of geology and bore the method coordinating special drill bit Cheng Jing, solve gravity in tunnel and become the problem of well difficulty.
Summary of the invention
The utility model becomes the problem of well difficulty in order to solve gravity in tunnel, provide gravity dewatering well in a kind of tunnel and become well drill bit.
The utility model adopts following technical scheme:
In a kind of tunnel, gravity dewatering well becomes well drill bit, and comprise drilling rod, be arranged with sleeve pipe outside one end of drilling rod, sleeve pipe is connected with some flabellums, described flabellum is provided with two-layer, and first floor flabellum and second layer flabellum are alternately arranged.
Described drilling rod is the seamless steel pipe of hollow.
Described flabellum and sleeve pipe are 10 ° ~ 20 ° and weld, and the welding ends of flabellum is towards one end of mounting sleeve on drilling rod.
Described drilling rod is designed to hollow structure, is conducive to the conveying to mud; Double flabellum, alternately layout can make that boring mud is fully smashed, mud stirring is even, be convenient to the discharge of boring mud, therefore, drill bit described in the utility model can better coordinate geology to bore construction, and construction quality is high, speed of application is fast, solve the ordi-nary drilling machine problem that small space cannot be constructed in hole.
Accompanying drawing explanation
Fig. 1 is structural front view of the present utility model;
Fig. 2 is structure side view of the present utility model;
In figure: 1-drilling rod, 2-sleeve pipe, 3-first floor flabellum, 4-second layer flabellum.
Detailed description of the invention
By reference to the accompanying drawings, detailed description of the invention of the present utility model is described further:
In tunnel as shown in Figure 1, gravity dewatering well becomes well drill bit, comprises drilling rod 1, and drilling rod 1 is hollow structure, hollow drill pipe can be utilized in drilling process to adopt pump machine to extract mud out and to take boring mud out of, be conducive to drift sand stratum pore-forming, drilling rod employing specification is the seamless steel pipe of φ 42mm, wall thickness 10mm; One end peripheral solder of drilling rod 1 has φ 54mm, the seamless steel pipe of wall thickness 5mm, as reinforcement sleeve pipe 2, increase drill bit end intensity, be convenient to flabellum simultaneously and be connected with drilling rod, weld in 10 ° ~ 20 ° between flabellum with reinforcement sleeve pipe 2, namely the angle between flabellum and drilling rod 1 axis is 10 ° ~ 20 °, when soldering angle is 15 °, rig rate of penetration is the fastest, best results.Wherein, flabellum is processed by the steel plate of 15mm, as shown in Figure 2, is designed to two-layer, three every layer, and first floor flabellum 3 and second layer flabellum 4 alternately arrange namely there is the flabellum of coincidence along drilling rod 1 axis direction, adopts Drilling by circulation principle to prevent collapse hole.
When becoming well construction, this drill bit is installed on geology and bores, and proportioning pump machine adopts reacting cycle principle pore-forming, pump machine is connected with geology drilling flexible pipe.
Claims (3)
1. in a tunnel, gravity dewatering well becomes well drill bit, it is characterized in that: comprise drilling rod (1), sleeve pipe (2) is arranged with outside one end of drilling rod (1), (2) are connected with some flabellums with sleeve pipe, described flabellum is provided with two-layer, and first floor flabellum (3) and second layer flabellum (4) are alternately arranged.
2. in tunnel according to claim 1, gravity dewatering well becomes well drill bit, it is characterized in that: the seamless steel pipe that described drilling rod (1) is hollow.
3. in tunnel according to claim 1, gravity dewatering well becomes well drill bit, it is characterized in that: described flabellum welds in 10 ° ~ 20 ° with sleeve pipe (2), and the welding ends of flabellum is towards one end of the upper mounting sleeve (2) of drilling rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429566.6U CN204754799U (en) | 2015-06-23 | 2015-06-23 | Gravity type precipitation well becomes well drill bit in tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429566.6U CN204754799U (en) | 2015-06-23 | 2015-06-23 | Gravity type precipitation well becomes well drill bit in tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204754799U true CN204754799U (en) | 2015-11-11 |
Family
ID=54469518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520429566.6U Active CN204754799U (en) | 2015-06-23 | 2015-06-23 | Gravity type precipitation well becomes well drill bit in tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204754799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269270A (en) * | 2015-11-27 | 2016-01-27 | 吉林省维尔特隧道装备有限公司 | Production process for disc cutter ring of tunnel boring machine (TBM) |
-
2015
- 2015-06-23 CN CN201520429566.6U patent/CN204754799U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269270A (en) * | 2015-11-27 | 2016-01-27 | 吉林省维尔特隧道装备有限公司 | Production process for disc cutter ring of tunnel boring machine (TBM) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |