CN104563950A - Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe - Google Patents
Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe Download PDFInfo
- Publication number
- CN104563950A CN104563950A CN201410827758.2A CN201410827758A CN104563950A CN 104563950 A CN104563950 A CN 104563950A CN 201410827758 A CN201410827758 A CN 201410827758A CN 104563950 A CN104563950 A CN 104563950A
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- China
- Prior art keywords
- steel plate
- outlet pipe
- wire rope
- pipe
- slurry
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
Abstract
The invention discloses an impact holing boring slurry isolation device based on a slurry outlet pipe and a slag inlet pipe. A circular steel plate is arranged on a position, away from the hole bottom impact drill bit for a movable range, of a borehole in the impact holing construction process, the slurry with relatively large viscosity and relatively large density is arranged in holes in the upper part of the steel plate, the hole wall can be effectively protected, and the collapse of the hole wall can be prevented. The slurry with relatively small viscosity and relatively small density is arranged in holes in the lower part of the steel plate, when the drill bit impacts the hole in the lower part of the steel plate, the resistance of the slurry can be reduced, and the impact holing efficiency can be improved; the slurry outlet pipe and the slag inlet pipe are arranged on the lower end of the steel plate, and the clean water forms upward pressure for the slurry on the bottom, so that the extraction efficiency of the slurry can be improved, and the clean water can be prevented from being extracted when the slurry is extracted.
Description
Technical field
The present invention relates to Geotechnical Engineering field, particularly relate to a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe.
Background technology
Along with the fast development of China's transport development, most of highway construction is carried out in western mountainous areas.Carry out highway construction in mountain area, bridge occupies significant proportion, when constructing to bridge pier, many times adopts impact holing mode to construct to pile foundation of bridge pier.When adopting impact holing mode to construct, in order to keep hole wall to stablize, preventing hole wall collapse, generally all adopting the method for mud off to carry out.Now along with the continuous expansion of bridge scale, the pile foundation of bridge pier is more and more darker.In impact holing process; in order to protect the stability of hole wall; viscosity and the severe of mud are increasing, although protect the stability of hole wall in work progress, because the viscosity of mud increases; the viscous drag when drilling hole burst of drill bit increases; in order to overcome the viscous drag of mud, the impact energy of drill bit consumes in mud greatly, causes fractured rock efficiency at the bottom of hole not high; rate of penetration is slow, and pore-forming efficiency is extremely low.
Summary of the invention
In view of this, the invention provides a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe, solve the drill bit problem that resistance is excessive in mud when impact holing, thus drilling efficiency when improving impact holing.
Based on an impact holing drilling slurry spacer assembly for outlet pipe and slag feed pipe, comprise steel plate, inlet pipe, residue outlet, wire rope, wire rope lay mechanism, outlet pipe and slag feed pipe, wherein:
Described steel plate is disc, and its diameter is less than bore diameter, and steel plate circle centre position arranges lacing hole, and the card of steel plate is provided with the slag notch relative to center of circle symmetry and stock inlet; 3 wire rope tie points are circumferentially evenly provided with at described steel plate edge;
Described wire rope lays mechanism 3, is evenly fixed on boring edge; Three wire rope tie points of steel plate fix three wire rope one end respectively, and the wire rope other end is connected to wire rope and lays in mechanism; The wire rope of drill bit described in crane hanging component passes from described lacing hole, and steel plate is lifted above drill bit in the borehole by wire rope level; The stock inlet upper end of described steel plate connects described inlet pipe, and described slag notch upper end connects described residue outlet; The free end of described inlet pipe and slag notch is arranged on the edge of boring; The lower end of described stock inlet connects described outlet pipe one end, and the lower end of described slag notch connects described slag feed pipe one end; Wherein, the other end of described outlet pipe is close to the upper end of drill bit, and the other end of described slag notch is bell mouth shape, and the free end of described inlet pipe is pumped to clear water, and the free end of described slag notch arranges electrodynamic pump and extracted out from steel plate bottom by mud.
Preferably, the diameter of described steel plate 20cm less of bore diameter; The thickness of described steel plate is 5mm ~ 10mm; The diameter of described lacing hole is 10cm; The diameter of described slag notch and stock inlet is 20cm; Described slag notch center and mud mouth center and steel plate 1 Edge Distance are 30cm; Described wire rope tie point is apart from steel plate edge 20cm; The horn mouth of described slag feed pipe is higher than the soffit near steel plate.
The present invention has following beneficial effect:
Spacer assembly of the present invention, in impact holing work progress, more than drill hammer scope of activities at the bottom of hole spacing hole; one circular steel plate is set; be the mud that viscosity ratio is comparatively large and density is larger in the hole on steel plate top, effectively can protect hole wall, control hole wall collapse.And in the hole of steel plate bottom, be the mud that viscosity and density are less, in the hole of drill bit steel plate bottom again during impact holing, can slurry resistance be reduced, put forward impact holing efficiency; By arranging outlet pipe and slag feed pipe in steel plate lower end, clear water is formed mud in bottom and upwards pressure, and improves the extraction efficiency of mud, meanwhile, avoids also being taken away by clear water when extracting mud.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the percussive drilling inner structure in the present invention;
Fig. 2 is the schematic diagram of the steel plate structure in the present invention.
1-steel plate, 2-residue outlet, 3-inlet pipe, 4-wire rope, 5-top mud, 6-bottom mud, 7-wire rope tie point, 8-slag notch, 9-stock inlet, 10-lacing hole, 11-wire rope lays mechanism, 12-drill bit, 13-crane, 14-outlet pipe, 15-slag feed pipe.
Detailed description of the invention
To develop simultaneously embodiment below in conjunction with accompanying drawing, describe the present invention.
Below in conjunction with drawings and Examples, the present invention is described in further detail.
When mud viscosity and density affect the percussion drilling efficiency of drill bit comparatively greatly in holing, first the lacing hole 10 connected on drill hammer 12 steel wire penetrating steel plate 1, connect drill hammer 12 and drill bit is put into boring.Again on steel plate 1 coupling together with wire rope tie point 7 wire rope 4 with fixation steel plate 1 on steel plate 1, residue outlet 2 and steel plate are exported 8 and are connected and are tightly connected and locate, inlet pipe 3 and steel plate are entered mud mouth 9 and is connected and is tightly connected and locate.Then by wire rope 4, steel plate being put into precalculated position, hole, resistance when putting into reduce, steel plate 1 certain angle that tilts can be put into.After precalculated position put into by steel plate 1, pump into clear water to inlet pipe 3 upper end, extracted out by the mud in boring by residue outlet 2, so, the mud of steel plate less than 1 is replaced by the clear water that inlet pipe 3 pumps into, and changes viscosity and the density of mud in steel plate 1 bottom hole.Like this, the mud on steel plate 1 top owing to keeping larger viscosity and density, thus keeps the stable of hole wall, and viscosity and the density of the mud of steel plate 1 bottom are less, reduce the resistance of motion of drill hammer 12, improve drilling efficiency.
The present invention is also provided with outlet pipe 14 and slag feed pipe 15 in steel plate 1 bottom, and the lower end of stock inlet 9 is connected outlet pipe 14 one end, and the lower end of slag notch 8 connects slag feed pipe 15 one end; Wherein, the other end of described outlet pipe 14 is close to the upper end of drill bit 12, and the other end of described slag feed pipe 15 is bell mouth shape, near the lower surface of steel plate 1.After inlet pipe 3 pumps into clear water, the end due to outlet pipe 14 is arranged on the position close to drill bit 12, and clear water pumps into from the bottom of boring; Simultaneously, slag feed pipe 15 is arranged on the position of steel plate 1 lower surface, when after the electric priming pump that residue outlet 2 connects, trumpet-shaped slag feed pipe 15 starts to extract mud on the top of boring 12, so, clear water is formed mud in bottom and upwards pressure, and improves the extraction efficiency of mud, meanwhile, avoid when extracting mud, clear water also being taken away.
In sum, these are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. based on an impact holing drilling slurry spacer assembly for outlet pipe and slag feed pipe, it is characterized in that, comprise steel plate, inlet pipe, residue outlet, wire rope, wire rope lay mechanism, outlet pipe and slag feed pipe, wherein:
Described steel plate is disc, and its diameter is less than bore diameter, and steel plate circle centre position arranges lacing hole, and the card of steel plate is provided with the slag notch relative to center of circle symmetry and stock inlet; 3 wire rope tie points are circumferentially evenly provided with at described steel plate edge;
Described wire rope lays mechanism 3, is evenly fixed on boring edge; Three wire rope tie points of steel plate fix three wire rope one end respectively, and the wire rope other end is connected to wire rope and lays in mechanism; The wire rope of drill bit described in crane hanging component passes from described lacing hole, and steel plate is lifted above drill bit in the borehole by wire rope level; The stock inlet upper end of described steel plate connects described inlet pipe, and described slag notch upper end connects described residue outlet; The free end of described inlet pipe and slag notch is arranged on the edge of boring; The lower end of described stock inlet connects described outlet pipe one end, and the lower end of described slag notch connects described slag feed pipe one end; Wherein, the other end of described outlet pipe is close to the upper end of drill bit, and the other end of described slag notch is bell mouth shape, and the free end of described inlet pipe is pumped to clear water, and the free end of described slag notch arranges electrodynamic pump and extracted out from steel plate bottom by mud.
2. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that, the diameter 20cm less of bore diameter of described steel plate.
3. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: the thickness of described steel plate is 5mm ~ 10mm.
4. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: the diameter of described lacing hole is 10cm.
5. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: the diameter of described slag notch and stock inlet is 20cm.
6. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: described slag notch center and mud mouth center and steel plate 1 Edge Distance are 30cm.
7. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: described wire rope tie point is apart from steel plate edge 20cm.
8. a kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe as claimed in claim 1, is characterized in that: the horn mouth of described slag feed pipe is higher than the soffit near steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827758.2A CN104563950A (en) | 2014-12-25 | 2014-12-25 | Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410827758.2A CN104563950A (en) | 2014-12-25 | 2014-12-25 | Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104563950A true CN104563950A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410827758.2A Pending CN104563950A (en) | 2014-12-25 | 2014-12-25 | Impact holing boring slurry isolation device based on slurry outlet pipe and slag inlet pipe |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0485483A (en) * | 1990-07-27 | 1992-03-18 | Central Res Inst Of Electric Power Ind | High heat resisting packer device |
| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN101634149A (en) * | 2009-08-05 | 2010-01-27 | 朱奎 | Prestressed anchor foundation pit support and construction method |
| CN102226340A (en) * | 2011-04-15 | 2011-10-26 | 中国一冶集团有限公司 | Construction method for rock-entering cast-in-situ bored piles with diameter of less than 1.5m |
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
| CN204386549U (en) * | 2014-12-25 | 2015-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe |
-
2014
- 2014-12-25 CN CN201410827758.2A patent/CN104563950A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0485483A (en) * | 1990-07-27 | 1992-03-18 | Central Res Inst Of Electric Power Ind | High heat resisting packer device |
| CN1085981A (en) * | 1993-10-26 | 1994-04-27 | 涂正武 | Capsule sealing grouting and sealing device thereof |
| CN101634149A (en) * | 2009-08-05 | 2010-01-27 | 朱奎 | Prestressed anchor foundation pit support and construction method |
| CN102226340A (en) * | 2011-04-15 | 2011-10-26 | 中国一冶集团有限公司 | Construction method for rock-entering cast-in-situ bored piles with diameter of less than 1.5m |
| CN104213833A (en) * | 2013-06-03 | 2014-12-17 | 中国石油天然气集团公司 | Horizontal directional drilling crossing construction method and horizontal directional drilling crossing drilling device |
| CN204386549U (en) * | 2014-12-25 | 2015-06-10 | 贵州省交通规划勘察设计研究院股份有限公司 | A kind of impact holing drilling slurry spacer assembly based on outlet pipe and slag feed pipe |
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Application publication date: 20150429 |
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