CN208803816U - A kind of large aperture deep-well downcomer well verticality control device - Google Patents
A kind of large aperture deep-well downcomer well verticality control device Download PDFInfo
- Publication number
- CN208803816U CN208803816U CN201821256568.XU CN201821256568U CN208803816U CN 208803816 U CN208803816 U CN 208803816U CN 201821256568 U CN201821256568 U CN 201821256568U CN 208803816 U CN208803816 U CN 208803816U
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- well
- sleeve
- large aperture
- drilling
- control device
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Abstract
A kind of large aperture deep-well downcomer well verticality control device, including be set on horizontal base (6) that on borer drill rod (2) and rear end is fixedly connected with drilling machine machine bar (1) by center sets of holes, be placed on horizontal base laser leveler (8), be sleeved on be located on drilling rod pore-forming with connect above casing (9) and with pore-forming with casing threads sleeve (3), movable set is on drilling rod and positioned at annulus (4), the radial connecting plate (5) being welded between annulus and sleeve of position of upper in sleeve.The utility model, which can guarantee, digs a well from surface drilling to the verticality on water discharge tunnel hole top, improves large aperture deep-well downcomer well verticality, and simple and reliable for structure, easy to operate.
Description
Technical field
The utility model relates to a kind of large aperture deep-well downcomer well verticality control devices, belong to tube well dewatering construction skill
Art field.
Background technique
Large hydraulic engineering is widely distributed in China, these hydraulic engineerings, also can be because while offering convenience for us
Its water storage causes the level of ground water of the corresponding section in upstream to rise, to increase section mud-rock flow, landslide, the surface cracks etc.
The probability that geological disaster occurs.For lowering of watertable, the general method using artificial dewatering is constructed.Big diameter and deep
The dewatering measure of well precipitation pipe well cooperation water discharge tunnel, it has also become level of ground water enriches the common method of regional precipitation.And it is applying
First construction drainage tunnel is needed in work, then digs a well from surface drilling to water discharge tunnel hole and pushes up, then installation draining blind pipe, institute in well
It is how to guarantee that large aperture deep-well downcomer well is pushed up from the water discharge tunnel hole that 80~90m of surface drilling is deep to only 2.6m clear span
One big technical problem.
Summary of the invention
Purpose of the utility model is to solve existing technical problems, provide a kind of can guarantee and dig a well from surface drilling
The control device of the verticality, raising large aperture deep-well downcomer well verticality pushed up to water discharge tunnel hole.
The purpose of this utility model is achieved through the following technical solutions:
A kind of large aperture deep-well downcomer well verticality control device, including be set on borer drill rod by center sets of holes
And rear end be fixedly connected with drilling machine machine bar horizontal base, be placed on horizontal base laser leveler, be sleeved on drilling rod
Positioned at pore-forming with connect above casing and with pore-forming with casing threads sleeve, movable set is on drilling rod and being located in sleeve
Annulus, the radial connecting plate being welded between annulus and sleeve of mouth position.
The length of sleeve described in the utility model is 40cm.The horizontal base is fixedly connected on drilling machine by connecting bolt
On machine bar.
When the utility model is used for the drilling well-digging of large aperture deep-well downcomer well, by sleeve and most upper section pore-forming with set
Pipe is together by a threaded connection, and so that drilling rod is located at the circle ring center of position of upper in the utility model sleeve, by laser level
Instrument is placed on horizontal base and levels.When needing to change next section every time with casing (every section with casing length be
1.5m, so needing constantly to change with casing with the intensification of depth of pore forming), the utility model is unloaded, to next section at
Hole carries out vertical and water to drilling machine machine bar using laser leveler with assembling the utility model again after the completion of sleeve-assembled, and again
Flat two directions are checked and adjustment, it is ensured that drilling machine carries out applying brill with casing and the vertical rear of drilling rod.Using the utility model, base
Originally it can guarantee after the deep-well downcomer well pore-forming of large aperture, bore inclining rate meets design requirement, to guarantee construction quality.
It is the utility model stabilized structure, safe and reliable, easy to install and use, easy to operate, it can relatively accurately control
The verticality of large aperture deep-well downcomer well prevents offset, dislocation, it is ensured that the validity of pipe well pore-forming prevents tube well dewatering
The offset occurred in drilling construction improves the serviceability rate of tube well dewatering construction, accelerates construction progress, and reduces useless porosity, reduces and apply
Work cost.
Detailed description of the invention
Fig. 1 is the schematic diagram that the utility model is mounted on drilling machine machine bar；
Fig. 2 is the top view that sleeve is connect with annulus；
Fig. 3 is the three-dimensional structure diagram that sleeve is connect with annulus；
Fig. 4 is the axial section that sleeve is connect with annulus.
Specific embodiment
As shown in Figure 1, the large aperture deep-well downcomer well verticality control device of the utility model, including pass through center
Hole is set on the horizontal base 6 that on borer drill rod 2 and rear end is fixedly connected with drilling machine machine bar 1, is placed in swashing on horizontal base
Light level meter 8 is sleeved on and is located at pore-forming on drilling rod with sleeve 3, the movable sleeve casing 9 top and connect with pore-forming with casing threads
Loaded on drilling rod and positioned at annulus 4, the radial connecting plate 5 being welded between annulus and sleeve of position of upper in sleeve.
The length of the sleeve 3 is 40cm.The horizontal base 6 is fixedly connected on drilling machine machine bar 1 by connecting bolt 7.
Final section pore-forming is concentric with casing 9 and sleeve 3, and the two is being not less than 30cm's apart from 6 top surface of horizontal base
Position is connected through a screw thread.Annulus 4 is set to position of upper in sleeve 3, and internal diameter is slightly larger than 2 outer diameter of drilling rod, and
Sleeve 3 and annulus 4 are concentric, and are welded into a whole with connecting plate 5.
As shown in figs 2-4, the sleeve 3, annulus 4 and connecting plate 5 are welded to form one-piece member, annulus can with
In 9 drilling and forming hole work progress of casing, 2 deflection of drilling rod is prevented, guarantees that drilling rod is substantially at 4 center of annulus and in vertical
State, while also guaranteeing that the concentricity between drilling rod 2 and annulus 4 is preferable, in this way with the tube well dewatering hole of 9 drilling and forming hole of casing
Verticality can satisfy design requirement substantially.During with 9 drilling and forming hole of casing, at any time to drilling machine machine bar 1 carry out it is vertical and
Two direction of level is checked, and is dynamically adjusted in time when there is deviation, so that drilling machine machine bar is in plumbness, to guarantee that pipe well drops
Water at hole perpendicularity accuracy.
Claims (3)
1. a kind of large aperture deep-well downcomer well verticality control device, feature is, including is worn by center sets of holes
On borer drill rod (2) and horizontal base (6) that rear end is fixedly connected with drilling machine machine bar (1), it is placed in swashing on horizontal base
Light level meter (8), be sleeved on be located on drilling rod pore-forming with connect above casing (9) and with pore-forming with casing threads sleeve (3),
Movable set is on drilling rod and being located at the annulus (4) of position of upper in sleeve, radial be welded between annulus and sleeve
Connecting plate (5).
2. a kind of large aperture deep-well downcomer well verticality control device according to claim 1, which is characterized in that described
The length of sleeve (3) is 40cm.
3. a kind of large aperture deep-well downcomer well verticality control device according to claim 1 or 2, which is characterized in that
The horizontal base (6) is fixedly connected on drilling machine machine bar (1) by connecting bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256568.XU CN208803816U (en) | 2018-08-06 | 2018-08-06 | A kind of large aperture deep-well downcomer well verticality control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821256568.XU CN208803816U (en) | 2018-08-06 | 2018-08-06 | A kind of large aperture deep-well downcomer well verticality control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208803816U true CN208803816U (en) | 2019-04-30 |
Family
ID=66231242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821256568.XU Expired - Fee Related CN208803816U (en) | 2018-08-06 | 2018-08-06 | A kind of large aperture deep-well downcomer well verticality control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208803816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425133A (en) * | 2020-03-30 | 2020-07-17 | 中国一冶集团有限公司 | Dewatering well construction device and construction method thereof |
-
2018
- 2018-08-06 CN CN201821256568.XU patent/CN208803816U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425133A (en) * | 2020-03-30 | 2020-07-17 | 中国一冶集团有限公司 | Dewatering well construction device and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |