CN102767337A - Sleeve type screw pile machine drill and construction method for eliminating barriers - Google Patents

Sleeve type screw pile machine drill and construction method for eliminating barriers Download PDF

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Publication number
CN102767337A
CN102767337A CN2012102840705A CN201210284070A CN102767337A CN 102767337 A CN102767337 A CN 102767337A CN 2012102840705 A CN2012102840705 A CN 2012102840705A CN 201210284070 A CN201210284070 A CN 201210284070A CN 102767337 A CN102767337 A CN 102767337A
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CN
China
Prior art keywords
sleeve
screw pile
pile machine
obstruction
mud
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.)
Granted
Application number
CN2012102840705A
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Chinese (zh)
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CN102767337B (en
Inventor
姜庆
鲁克涛
吴华
金忠良
柳志强
宋惠友
刘明玉
柳治富
王德利
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Weihai Hydraulic & Geotechnical Engineering Co Ltd
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Weihai Hydraulic & Geotechnical Engineering Co Ltd
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Priority to CN201210284070.5A priority Critical patent/CN102767337B/en
Publication of CN102767337A publication Critical patent/CN102767337A/en
Application granted granted Critical
Publication of CN102767337B publication Critical patent/CN102767337B/en
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Abstract

The invention relates to the technical field of construction machines and particularly relates to a sleeve type screw pile machine drill. The drill is characterized in that a flange is arranged at the upper end of the sleeve, a cutting knife is embedded at the lower end of the sleeve, hard alloy expanding teeth are arrayed on the outer wall of the lower end portion of the sleeve, at least two barbs which incline in a direction of the axis of the sleeve are arranged on the inner wall of the lower end of the sleeve, during usage, the sleeve is connected with a core pipe of the screw pile machine though the flange arranged at the upper end of the sleeve, soil layers and barriers of fracture piles, drill pipes and drills, which are buried underground are cut by the cutting knife arranged at the front end of the sleeve, cut soil, barrier slag particles are discharged out of a hole along with slurry by the spiral blade, when barriers enter and are drilled to a design bearing layer, the core pipe and the sleeve stop rotating and are lift upwards, and at this time, the barriers are clamped by barbs arranged inside the sleeve and pulled out of the pile hole, so that the barriers are eliminated. The sleeve type screw pile machine drill has the advantages of being simple in structure, convenient to operate and capable of increasing the construction speed of the pile hole.

Description

The job practices of a kind of telescopic screw pile machine drill bit and rid
Technical field
The present invention relates to the building machinery technical field, specifically a kind of easy to operate, the telescopic screw pile machine drill bit of high efficiency and the job practices of rid.
Background technology
As everyone knows, building all needs stable basis, particularly high-rise building and all needs firm foundation pile; The bearing capacity of the high more needed foundation pile of building is just big more, and building foundation pile need be by cooperatings such as pile driver, batching plant, concrete mixer, concrete pumps, and existing screw pile machine comprises pile frame, running gear, unit head, auger stem, drill bit and grout pump; Auger stem wherein is provided with multistage core pipe, and the core pipe is provided with spiral blade, and the two ends of core pipe are provided with flange; Be connected by flange between the core pipe, the upper end of core pipe is connected with unit head through flange, and the lower end of core pipe is connected with drill bit through flange; Described drill bit is made up of flange, core pipe, blade, bearing pin and apex point, and core pipe upper end is fixedly connected with flange, and the lower end is connected with apex point through bearing pin; Boring earlier when this stake machine is worked; Concrete perfusion again, descending reinforcing cage Cheng Zhu then, but in construction particularly in the reconstruction of the old city town construction; Run into original various old stake through regular meeting, bring difficulty to bored pile construction; In addition, during bored pile construction, broken pile, bury drills bar, bury drills head accident happen occasionally; Like the useless stake of untimely removing, take out by bury drills bar or drill bit, then can bring bigger economic loss to unit in charge of construction; Handled the general heavy excavation global purge of adopting in the past; Backfilling compaction carries out the bored pile operation more then, but this way wastes time and energy, and uneconomical.
Summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned prior art, provide a kind of and remove, guarantee the telescopic screw pile machine drill bit of foundation pile smooth construction and the job practices of rid will be embedded in underground drilling rod, drill bit or other obstruction fast, economically.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of telescopic screw pile machine drill bit; The upper end that it is characterized in that sleeve is provided with flange; The lower end of sleeve is inlaid with cutter, and the outer wall of sleeve bottom is gone into battle and shown carbide alloy reaming tooth, is provided with two barbs that tilt to the sleeve axis direction on the inwall of sleeve lower end at least.
Reaming tooth of the present invention is located at lower cartridge 1/3rd places; The reaming tooth is provided with three rows at least along axis direction, whenever drains into to be provided with six reaming teeth less, and the reaming tooth generally is embedded on the sleeve outer wall; The reaming tooth can be welded on the sleeve wall, plays the effect of reaming and protection sleeve wearing and tearing.
A kind of job practices of rid,
Step 1, a brill stake hole, selected pile foundation position adopts screw pile machine also to be fixed on tapered twist drill on the core pipe of screw pile machine through flange; Utilize augers cutter tooth cutting soil layer, after the soil body in the stake hole is cut by augers, along outside the core pipe rotation rising tap that has helical blade; When being drilled into obstruction; More bit change is fixed on telescopic screw pile machine drill bit on the core pipe of screw pile machine through flange, utilizes the cutter tooth cutting stratum or the obstruction of telescopic chisel edge; Sleeve has two aspect functions; The moment of torsion that on the one hand top drive is provided be pressed into power and pass to cutter tooth, in the process of creeping into, also play the supporting hole wall simultaneously, prevent the effect of hole wall collapse
Step 3, perfusion mud, the retaining wall deslagging, mud is converted water by high-ductility clay or swell soil and is formed; The proportion of mud is 1.1-1.3, and mud is delivered in the core pipe by grout pump, and a part of mud hangs on the hole wall; Reduce hole wall frictional resistance, prevent hole wall collapse, the obstruction slag that most of mud carries under the soil body or the cutting is made progress outside the tap by the space between sleeve or core tube wall and hole wall; Annotate mud pressure and be not less than 10MPa
Obstructions such as broken pile, drilling rod or drill bit in step 4, the cleaning sleeve get in the telescopic drill bit when obstructions such as being embedded in underground broken pile, drilling rod or drill bit is cut,
Step 5, extract obstruction, stop to pour into mud, lift lug cartridge type screw pile machine drill bit upwards, the obstruction in the sleeve is stopped by the hook of sleeve inwall that when telescopic screw pile machine drill bit rises hook blocks obstruction and proposes outside the hole,
That the present invention has is simple in structure, change advantages such as convenience, operating efficiency height, is specially adapted to clear up be embedded in underground drilling rod, drill bit or other obstruction and remove assurance foundation pile smooth construction.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified:
Shown in accompanying drawing, a kind of telescopic screw pile machine drill bit is characterized in that the upper end of sleeve 1 is provided with flange 2; The lower end of sleeve 1 is inlaid with cutter 3, and the outer wall of sleeve 1 bottom is gone into battle and shown carbide alloy reaming tooth 4, is provided with two barbs 5 that tilt to the sleeve axis direction on the inwall of sleeve 1 lower end at least; Described reaming tooth 4 is located at lower cartridge 1/3rd places; Reaming tooth 4 is provided with three rows at least along axis direction, whenever drains into and is provided with six reaming teeth 4 less, and reaming tooth 4 generally is embedded on sleeve 1 outer wall; Can be welded on the sleeve wall; Play the effect of reaming and protection sleeve wearing and tearing, cutter 3 adopt carbide alloy to process with reaming tooth 4, particularly cutter 3 can cutting steel, rock etc.
A kind of job practices of rid, step is following:
Step 1, a brill stake hole, selected pile foundation position adopts screw pile machine also to be fixed on tapered twist drill on the core pipe of screw pile machine through flange; Utilize augers cutter tooth cutting soil layer, after the soil body in the stake hole is cut by augers, along outside the core pipe rotation rising tap that has helical blade; When being drilled into obstruction; More bit change is fixed on telescopic screw pile machine drill bit on the core pipe of screw pile machine through flange, utilizes the cutter tooth cutting stratum or the obstruction of telescopic chisel edge; Sleeve has two aspect functions; The moment of torsion that on the one hand top drive is provided be pressed into power and pass to cutter tooth, in the process of creeping into, also play the supporting hole wall simultaneously, prevent the effect of hole wall collapse
Step 3, perfusion mud, the retaining wall deslagging, mud is converted water by high-ductility clay or swell soil and is formed; The proportion of mud is 1.1-1.3, and mud is delivered in the core pipe by grout pump, and a part of mud hangs on the hole wall; Reduce hole wall frictional resistance, prevent hole wall collapse, the obstruction slag that most of mud carries under the soil body or the cutting is made progress outside the tap by the space between sleeve or core tube wall and hole wall; Annotate mud pressure and be not less than 10MPa
Obstructions such as broken pile, drilling rod or drill bit in step 4, the cleaning sleeve get in the telescopic drill bit when obstructions such as being embedded in underground broken pile, drilling rod or drill bit is cut,
Step 5, extract obstruction, stop to pour into mud, lift lug cartridge type screw pile machine drill bit upwards, the obstruction in the sleeve is stopped by the hook of sleeve inwall that when telescopic screw pile machine drill bit rises hook blocks obstruction and proposes outside the hole,
That the present invention has is simple in structure, change advantages such as convenience, operating efficiency height, is specially adapted to clear up be embedded in underground drilling rod, drill bit or other obstruction and remove assurance foundation pile smooth construction.

Claims (3)

1. telescopic screw pile machine drill bit; The upper end that it is characterized in that sleeve is provided with flange; The lower end of sleeve is inlaid with cutter, and the outer wall of sleeve bottom is gone into battle and shown carbide alloy reaming tooth, is provided with two barbs that tilt to the sleeve axis direction on the inwall of sleeve lower end at least.
2. a kind of telescopic screw pile machine drill bit according to claim 1 is characterized in that the reaming tooth is located at lower cartridge 1/3rd places, and the reaming tooth is provided with three rows at least along axis direction, whenever drains into to be provided with six reaming teeth less, and the reaming tooth is embedded on the sleeve outer wall.
3. the job practices of a rid is characterized in that step is following:
Step 1, a brill stake hole, selected pile foundation position adopts screw pile machine also to be fixed on tapered twist drill on the core pipe of screw pile machine through flange; Utilize augers cutter tooth cutting soil layer, after the soil body in the stake hole is cut by augers, along outside the core pipe rotation rising tap that has helical blade; When being drilled into obstruction, more bit change is fixed on telescopic screw pile machine drill bit on the core pipe of screw pile machine through flange; Utilize the cutter tooth cutting stratum or the obstruction of telescopic chisel edge
Step 3, perfusion mud, the retaining wall deslagging, mud is converted water by high-ductility clay or swell soil and is formed; The proportion of mud is 1.1-1.3, and mud is delivered in the core pipe by grout pump, and a part of mud hangs on the hole wall; Reduce hole wall frictional resistance, prevent hole wall collapse, the obstruction slag that most of mud carries under the soil body or the cutting is made progress outside the tap by the space between sleeve or core tube wall and hole wall; Annotate mud pressure and be not less than 10MPa
Obstruction in step 4, the cleaning sleeve is embedded in underground obstruction and is cut in the telescopic drill bit of entering,
Step 5, extract obstruction, stop to pour into mud, lift lug cartridge type screw pile machine drill bit upwards, the obstruction in the sleeve is stopped by the hook of sleeve inwall that when telescopic screw pile machine drill bit rises hook blocks obstruction and proposes outside the hole.
CN201210284070.5A 2012-08-11 2012-08-11 The construction method of a kind of sleeve type helical stake machine drill head and rid Active CN102767337B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210284070.5A CN102767337B (en) 2012-08-11 2012-08-11 The construction method of a kind of sleeve type helical stake machine drill head and rid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210284070.5A CN102767337B (en) 2012-08-11 2012-08-11 The construction method of a kind of sleeve type helical stake machine drill head and rid

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CN102767337B CN102767337B (en) 2015-09-02

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321580A (en) * 2013-07-03 2013-09-25 龙建路桥股份有限公司 Foreign matter cutter for bridge pile holes and cutting and drilling method
CN103573188A (en) * 2013-11-12 2014-02-12 中铁十局集团有限公司 Abrasion drill bit device for processing uneven geology
CN103711436A (en) * 2013-12-31 2014-04-09 秦广飞 Foundation pit excavating device for photovoltaic power station

Citations (8)

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Publication number Priority date Publication date Assignee Title
US3888320A (en) * 1973-07-13 1975-06-10 Tri M Tool Corp Core drill
EP0171038A2 (en) * 1984-08-06 1986-02-12 Kabushiki Kaisha Tokyo Seisakusho Under reaming pile bore excavating bucket and method of its excavation
CN2316113Y (en) * 1997-11-16 1999-04-28 招远市水利建设工程公司 Gravel drill bit
CN2698953Y (en) * 2004-01-29 2005-05-11 乔春明 Tubular inner cutting type drag bit
CN101158269A (en) * 2007-11-01 2008-04-09 合肥工业大学 Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit
CN201606006U (en) * 2010-02-11 2010-10-13 山西路桥集团技术中心(有限公司) Bridge drilling bored concrete pile stone removing drill
CN201943581U (en) * 2010-12-24 2011-08-24 北京市三一重机有限公司 Inner spiral drum-type boring tool
CN202689944U (en) * 2012-08-11 2013-01-23 威海市水利岩土工程有限公司 Sleeve type spiral pile machine drill

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888320A (en) * 1973-07-13 1975-06-10 Tri M Tool Corp Core drill
EP0171038A2 (en) * 1984-08-06 1986-02-12 Kabushiki Kaisha Tokyo Seisakusho Under reaming pile bore excavating bucket and method of its excavation
CN2316113Y (en) * 1997-11-16 1999-04-28 招远市水利建设工程公司 Gravel drill bit
CN2698953Y (en) * 2004-01-29 2005-05-11 乔春明 Tubular inner cutting type drag bit
CN101158269A (en) * 2007-11-01 2008-04-09 合肥工业大学 Method for drilling roadbed small-caliber horizontal jacking pipe and drill bit
CN201606006U (en) * 2010-02-11 2010-10-13 山西路桥集团技术中心(有限公司) Bridge drilling bored concrete pile stone removing drill
CN201943581U (en) * 2010-12-24 2011-08-24 北京市三一重机有限公司 Inner spiral drum-type boring tool
CN202689944U (en) * 2012-08-11 2013-01-23 威海市水利岩土工程有限公司 Sleeve type spiral pile machine drill

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321580A (en) * 2013-07-03 2013-09-25 龙建路桥股份有限公司 Foreign matter cutter for bridge pile holes and cutting and drilling method
CN103573188A (en) * 2013-11-12 2014-02-12 中铁十局集团有限公司 Abrasion drill bit device for processing uneven geology
CN103711436A (en) * 2013-12-31 2014-04-09 秦广飞 Foundation pit excavating device for photovoltaic power station
CN103711436B (en) * 2013-12-31 2016-04-20 秦广飞 A kind of photovoltaic plant foundation pit excavating gear

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