CN204357365U - For the drainage hole device on high-pressure water-enriched stratum - Google Patents

For the drainage hole device on high-pressure water-enriched stratum Download PDF

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Publication number
CN204357365U
CN204357365U CN201420786935.2U CN201420786935U CN204357365U CN 204357365 U CN204357365 U CN 204357365U CN 201420786935 U CN201420786935 U CN 201420786935U CN 204357365 U CN204357365 U CN 204357365U
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CN
China
Prior art keywords
drilling rod
drainage hole
casting plate
pressure water
hole device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420786935.2U
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Chinese (zh)
Inventor
姚裕春
李安洪
傅毅静
谭汉义
邓满香
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Eryuan Engineering Group Co Ltd CREEC
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China Railway Eryuan Engineering Group Co Ltd CREEC
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Priority to CN201420786935.2U priority Critical patent/CN204357365U/en
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Abstract

For the drainage hole device on high-pressure water-enriched stratum, effectively to improve drilling efficiency and to reduce boring expense.Comprise the drilling rod driven by rig and the drill bit being installed on drilling rod lower end, the sidewall of drilling rod offers the drainage hole communicated with its internal cavities.The bottom of described drilling rod internal cavities is placed with casting plate, the diameter of casting plate and the internal diameter of drilling rod suitable, and be provided with the bracing wire that lower end is connected with casting plate, the top of drilling rod is extended in the upper end of bracing wire.

Description

For the drainage hole device on high-pressure water-enriched stratum
Technical field
The utility model relates to geotechnical engineering, particularly a kind of drainage hole device for high-pressure water-enriched stratum.
Background technology
Drilling equipment is made up of drilling rod and the drill bit being installed on its lower end usually, and drilling rod is driven by rig, drilling rod sidewall offers the drain hole communicated with its internal cavities.In engineering practice, high-pressure water-enriched stratum exists in a large number.When holing in high-pressure water-enriched layer, frequent generation due to underground mud and sand silting fill in drilling rod internal cavities boring drain hole phenomenon, because the pressure of high pressure ground water is large, cause boring to be difficult to enter or need very large boring pressure just can pierce, this just makes drilling efficiency very low and expense is high.For this reason, a kind of new drainage hole device of urgent needs solves this problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of drainage hole device for high-pressure water-enriched stratum, effectively to improve drilling efficiency and to reduce boring expense.
It is as follows that the utility model solves the technical scheme that its technical problem adopts:
Drainage hole device for high-pressure water-enriched stratum of the present utility model, comprise the drilling rod driven by rig and the drill bit being installed on drilling rod lower end, the sidewall of drilling rod offers the drainage hole communicated with its internal cavities, it is characterized in that: the bottom of described drilling rod internal cavities is placed with casting plate, the diameter of casting plate and the internal diameter of drilling rod suitable, and being provided with the bracing wire that lower end is connected with casting plate, the top of drilling rod is extended in the upper end of bracing wire.
The beneficial effects of the utility model are, can facilitate and discharge in time and be deposited on silt particle in drilling rod internal cavities, avoid the drainage hole of silt blocking drilling rod, keep carrying out release to high pressure ground water constantly in boring procedure, therefore effectively can improve drilling efficiency and reduce boring expense, solving the problem that high-pressure water-enriched earth-boring is difficult to construct; Structure is simple, and easy construction, has wide popularizing application prospect.
Accompanying drawing explanation
This manual comprises as next width accompanying drawing:
Fig. 1 is the structural representation of the utility model for the drainage hole device on high-pressure water-enriched stratum.
Component name shown in figure and corresponding mark: drill bit 10, drilling rod 20, drainage hole 21, casting plate 30, bracing wire 31.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, the drainage hole device for high-pressure water-enriched stratum of the present utility model, comprises the drilling rod 20 driven by rig and the drill bit 10 being installed on drilling rod 20 lower end, the sidewall of drilling rod 20 offers the drainage hole 21 communicated with its internal cavities.The bottom of described drilling rod 20 internal cavities is placed with casting plate 30, the diameter of casting plate 30 and the internal diameter of drilling rod 20 suitable, and be provided with the bracing wire 31 that lower end is connected with casting plate 30, the top of drilling rod 20 is extended in the upper end of bracing wire 31.
The utility model utilizes drill bit 10 to hole, and transmits power to drill bit 10 by drilling rod 20, and as the drainage channel of high pressure ground water, thus to high pressure ground water release, reduce resistance when drill bit 10 creeps into.Casting plate 30 is utilized to discharge the silt particle brought into when high pressure ground water enters drilling rod 20, to be sling casting plate 30 by bracing wire 31, precipitated mud and sand is discharged drilling rod 20, avoid silt blocking drainage hole 21, keep carrying out release to high pressure ground water constantly in boring procedure, therefore effectively can improve drilling efficiency and reduce boring expense, solving the problem that high-pressure water-enriched earth-boring is difficult to construct.
With reference to Fig. 1, the diameter of casting plate 30 is slightly less than the internal diameter of drilling rod 20, and plastic plate or other PVC material can be adopted to make.For adapting to the dark needs of different brill, described casting plate 30 is placed in the bottom of drilling rod 20 internal cavities overlap, and each casting plate 30 is configured with independently bracing wire 31.Usually, described drainage hole 21 is laid in blossom type on the sidewall of drilling rod 20.
With reference to Fig. 1, the sequence of construction of drainage hole device of the present utility model is: and bracing wire 31 is connected with polylith casting plate 30 → drill bit 10 is connected with drilling rod 20 → and bottom → drill bit 10 that bracing wire 31 and polylith casting plate 30 put drilling rod 20 internal cavities soil of holing → amass increases drill bit 10 when being difficult to enter, mention 30 to the aperture casting of casting plate, take out this block casting plate 30 → continue boring → long-pending soil and increase drill bit 10 when being difficult to enter, mentioning next block casting plate 30 to aperture casting, taking out this block casting plate 30 → repeat boring to requiring position.
The above the utility model some principle for the drainage hole device on high-pressure water-enriched stratum that just explain through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.

Claims (3)

1. for the drainage hole device on high-pressure water-enriched stratum, comprise the drilling rod (20) driven by rig and the drill bit (10) being installed on drilling rod (20) lower end, the sidewall of drilling rod (20) offers the drainage hole (21) communicated with its internal cavities, it is characterized in that: the bottom of described drilling rod (20) internal cavities is placed with casting plate (30), the diameter of casting plate (30) and the internal diameter of drilling rod (20) suitable, and be provided with the bracing wire (31) that lower end is connected with casting plate (30), the top of drilling rod (20) is extended in the upper end of bracing wire (31).
2. as claimed in claim 1 for the drainage hole device on high-pressure water-enriched stratum, it is characterized in that: described casting plate (30) is placed in the bottom of drilling rod (20) internal cavities overlap, and each casting plate (30) is configured with independently bracing wire (31).
3. as claimed in claim 1 for the drainage hole device on high-pressure water-enriched stratum, it is characterized in that: described drainage hole (21) is laid in blossom type on the sidewall of drilling rod (20).
CN201420786935.2U 2014-12-12 2014-12-12 For the drainage hole device on high-pressure water-enriched stratum Active CN204357365U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420786935.2U CN204357365U (en) 2014-12-12 2014-12-12 For the drainage hole device on high-pressure water-enriched stratum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420786935.2U CN204357365U (en) 2014-12-12 2014-12-12 For the drainage hole device on high-pressure water-enriched stratum

Publications (1)

Publication Number Publication Date
CN204357365U true CN204357365U (en) 2015-05-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420786935.2U Active CN204357365U (en) 2014-12-12 2014-12-12 For the drainage hole device on high-pressure water-enriched stratum

Country Status (1)

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CN (1) CN204357365U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111622249A (en) * 2020-06-16 2020-09-04 重庆市高新工程勘察设计院有限公司 Miniature pumping device for underground water of narrow foundation pit and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111622249A (en) * 2020-06-16 2020-09-04 重庆市高新工程勘察设计院有限公司 Miniature pumping device for underground water of narrow foundation pit and construction method thereof

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