CN206309304U - A kind of long screw drill rod - Google Patents

A kind of long screw drill rod Download PDF

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Publication number
CN206309304U
CN206309304U CN201621262989.4U CN201621262989U CN206309304U CN 206309304 U CN206309304 U CN 206309304U CN 201621262989 U CN201621262989 U CN 201621262989U CN 206309304 U CN206309304 U CN 206309304U
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CN
China
Prior art keywords
central tube
drill rod
long screw
screw drill
influent stream
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Active
Application number
CN201621262989.4U
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Chinese (zh)
Inventor
陈喜友
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BEIJING GEO-ENGINEERING Co
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BEIJING GEO-ENGINEERING Co
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Priority to CN201621262989.4U priority Critical patent/CN206309304U/en
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Abstract

The utility model discloses a kind of long screw drill rod, its drip irrigation device is long screw drill rod, including central tube, the helical blade being fixed on central tube periphery, the ring flange for being arranged on shaft two ends, also include the high-pressure slip-casting pipe being fixed on central tube, the axis of high-pressure slip-casting pipe and the diameter parallel of central tube, one termination of high-pressure slip-casting pipe is communicated with whitewashing mouth, and, perpendicular to the axis of central tube, having reached can reinforce side wall soil layer during drilling and forming hole for the emission direction of mouth of whitewashing.

Description

A kind of long screw drill rod
Technical field
The utility model is related to a kind of basement process device, more particularly to a kind of long screw drill rod.
Background technology
CFG be English Cement Fly-ash Gravel abbreviation, CFG is meant, by rubble, stone Bits, sand, flyash mixed cement plus water are mixed and stirred, the stake of the variable intensity with some strength being made of various forming machinery.At present CFG quite varied as basement process, and technology is very ripe.According to design requirement and field condition from corresponding construction work Skill, can be constructed by the way of long auger perfusion pile.
But when being designed and constructed in the special formation such as poor stratum of backfill, Muddy Bottoms, because of stratum side friction system Number is smaller, and the length design for reaching design bearing capacity will be lengthened, that is, increase construction cost, while increasing difficulty of construction again, such as be set Meter stake is long beyond market conventional mechanical construction category, and design will construct.
Utility model content
The purpose of this utility model is to provide a kind of long screw drill rod, and side wall soil can be reinforced during drilling and forming hole Layer.
Above-mentioned technical purpose of the present utility model technical scheme is that:
A kind of long screw drill rod, including central tube, be fixed on central tube periphery helical blade, be arranged on shaft two The ring flange at end, also including the high-pressure slip-casting pipe being fixed on central tube, the axis of high-pressure slip-casting pipe is put down with the axis of central tube OK, a termination of high-pressure slip-casting pipe is communicated with whitewashing mouth, the axis of the emission direction of mouth of whitewashing perpendicular to central tube.
By using above-mentioned technical proposal, long spire bar is sprayed to cement mortar by high-pressure pump during drilling and forming hole In the wall soil layer of side, so as to reinforce the effect of side wall soil layer, there is provided side friction, raising CFG pile bearing capacity effects are finally reached.
Preferably, whitewashing mouth to adjacent flange disk air line distance between 1m to 2m.
By using above-mentioned technical proposal, while water under high pressure mud can be avoided to spray earth's surface, preferably reinforcing is played Effect.
Preferably, the emission direction of whitewashing mouth intersects with the axis of central tube.
By using above-mentioned technical proposal, make the emission direction of water under high pressure mud perpendicular to side wall soil layer, make high pressure cement The pressure effect for starching offside wall soil layer is more preferable.
Preferably, high-pressure slip-casting pipe is fixed between central tube and helical blade.
By using above-mentioned technical proposal, high-pressure slip-casting pipe is fixed between central tube and helical blade in can facilitating The independent processing of heart pipe, helical blade and high-pressure slip-casting pipe, it is not necessary to adapt to high-pressure slip-casting pipe to existing central tube and spiral shell The structure of vane piece is largely changed, and facilitates the assembling of each part.
Preferably, the outlet of whitewashing mouth is arranged on helical blade away from the end face of central tube.
By using above-mentioned technical proposal, make whitewashing mouth nearest apart from side wall soil layer, when offside wall soil layer is pressurizeed, The speed loss that water under high pressure mud reaches side wall soil layer is small, and pressure effect is good.
Preferably, coaxial on the periphery of central tube be rotatably connected to influent stream ring, connection pressure injection high is provided with influent stream ring The runner of pipe is starched, the flow inlet of connection runner is provided with influent stream ring.
By using above-mentioned technical proposal, because in boring procedure, long screw drill rod is pressed into rotation, therefore height all the time Slurry pipe is being rotated all the time, inconvenience when injecting cement mortar to high pressure pulp-inlet pipe, and setting influent stream ring can make cement mortar from flow inlet Enter high-pressure slip-casting pipe through runner.Influent stream ring can be rotated with central tube, when long screw drill rod is rotated, influent stream ring and flow inlet Can inject cement mortar more convenient with remains stationary.
Preferably, be connected with swivel base on the periphery of central tube, swivel base is towards being provided with the end face of adjacent flange disk and enter The seat slot that stream ring is adapted, high-pressure slip-casting pipe connects end face of the seat slot away from adjacent flange disk, and runner is opened in influent stream ring axial end On face, influent stream ring is provided with end face being inserted in seat slot towards seat slot of runner, swivel base and adjacent ring flange be smaller than into Flow the axial length of ring.
By using above-mentioned technical proposal, runner is open state, is closed runner by seat slot wall, when to flow inlet injection water During mud, influent stream ring can axially float in the presence of water under high pressure mud along it, and with ring flange or be connected to ring flange On bolt abut, keep runner sealing state.
Preferably, flow inlet is opened on the periphery of influent stream ring.
By using above-mentioned technical proposal, facilitate the injection of cement mortar, while influent stream ring moving influence cement can be avoided The connection of slurry injection device and influent stream ring.
Preferably, being provided with location hole on influent stream ring.
By using above-mentioned technical proposal, to ensure the state in not turning that influent stream ring can be stablized, location hole is set Can facilitate and provide impetus to the fixed of influent stream ring, facilitate the fixation of influent stream ring.
Preferably, high-pressure slip-casting pipe is provided with multiple and is uniformly distributed.
By using above-mentioned technical proposal, can make long screw drill rod during rotation downwards, stress is more balanced, Boring procedure is relatively stable.Increase the amount of the cement mortar of the ejection of high-pressure slip-casting pipe simultaneously, be favorably improved adding for side wall soil layer Gu effect.
In sum, the utility model has the advantages that:
Long spire bar during drilling and forming hole, during cement mortar sprayed into side wall soil layer by high-pressure pump, so as to reinforce side The effect of wall soil layer, there is provided side friction, is finally reached raising CFG pile bearing capacity effects;Facilitate the assembling of each part;Make cement Slurry injection is more convenient.
Brief description of the drawings
Fig. 1 is the structural representation of long screw drill rod;
Fig. 2 is enlarged drawing at A in Fig. 1;
Fig. 3 is enlarged drawing at B in Fig. 1;
Fig. 4 is the partial sectional view of long screw drill rod;
Fig. 5 is enlarged drawing at C in Fig. 4.
In figure, 1, central tube;2nd, helical blade;21st, nozzle bore;3rd, ring flange;4th, high-pressure slip-casting pipe;41st, whitewashing mouth;5、 Influent stream ring;51st, runner;52nd, flow inlet;53rd, location hole;6th, swivel base;61st, seat slot;62nd, hole is taken over.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.Wherein identical parts identical accompanying drawing Mark is represented.It should be noted that the word "front", "rear" for being used in description below, "left", "right", "up" and "down" refer to It is the direction in accompanying drawing, word " bottom surface " and " top surface ", " interior " and " outward " are referred respectively to towards or away from particular elements geometry The direction at center.
A kind of long screw drill rod, as shown in figure 1, the central tube 1 including circular tube shaped, is connected with the periphery of central tube 1 Helical blade 2, the axis of helical blade 2 overlaps with central tube 1.Be respectively and fixedly connected with two axial ends of central tube 1 with The coaxial ring flange 3 of central tube 1.
As shown in Fig. 2 the swivel base 6 for being connected with annular of one end of central tube 1, swivel base 6 is coaxial with central tube 1, and sets Between two ring flanges 3.Swivel base 6 is towards the seat slot 61 that annular is provided with the end face of ring flange 3 adjacent thereto.Seat slot 61 is hung down Straight to be provided with four adapter holes 62 in uniform on the end face of the axis of central tube 1, adapter hole 62 is through hole.
One is plugged with seat slot 61 the influent stream ring 5 being connected is rotated with central tube 1, influent stream ring 5 is to be adapted with seat slot 61 Ring-type, influent stream ring 5 is provided with the runner 51 of annular in the seat slot 61 on the end face of through hole.Through hole and runner 51 in seat slot 61 Connection.The axial length of influent stream ring 5 and runner 51 is all higher than the axial length of seat slot 61.It is provided with the outer circle wall of influent stream ring 5 Circular flow inlet 52, the connection runner 51 of flow inlet 52.The edge of flow inlet 52 be provided with to influent stream ring 5 end face of runner 51 away from From more than the axial length of seat slot 61, making flow inlet 52 be always positioned at outside seat slot 61.
A location hole 53 is provided with the outer circumferential sides wall of influent stream ring 5, location hole 53 is blind hole.The edge of location hole 53 is arrived Influent stream ring 5 is provided with the distance of the end face of runner 51, more than the axial length of seat slot 61, location hole 53 is always positioned at seat slot 61 Outward.The axial length of influent stream ring 5 is more than the spacing of swivel base 6 and adjacent ring flange 3.
In connection with Figures 1 to 4, being connected with four high-pressure slip-casting pipes 4 on the outer circle wall of central tube 1, high-pressure slip-casting pipe 4 is worn Cross helical blade 2.The axis of high-pressure slip-casting pipe 4 and the diameter parallel of central tube 1.In 4 two terminations of each high-pressure slip-casting pipe One affixed with seat slot 61, and four high-pressure slip-casting pipes 4 are coaxial with adapter hole 62 respectively and connect.Adapter hole 62 and high-pressure slip-casting pipe 4 inwall radius is identical;Another termination is communicated with whitewashing mouth 41.
With reference to Fig. 5, whitewashing mouth 41 is circular tube shaped.Helical blade 2 on the end face of central tube 1 away from being provided with and four nozzle bores 21, four nozzle bores 21 are evenly distributed on a circumference for spiral of helical blade 2, the axis and central tube of nozzle bore 21 1 axis is vertical and intersecting, and the angle of the adjacent axis of nozzle bore 21 is 90 degree.The outer wall of whitewashing mouth 41 is interior with nozzle bore 21 Wall is adapted, and whitewashing mouth 41 is fixed in nozzle bore 21 and is connected with the high-pressure slip-casting pipe 4 for injecting helical blade 2.Whitewashing mouth 41 is arrived The air line distance of adjacent flange disk 3 is between 1m to 2m.
When using, one end that long screw drill rod sets whitewashing mouth 41 is connected with drill bit, the other end is connected with rig, by height Pressure cement injection device connected with flow inlet 52, high pressure cement injection device is fixed with influent stream ring 5, startup rig, drill bit with Long screw drill rod pierces ground, and influent stream ring 5 is rotated relative to central tube 1, after mouth 41 of whitewashing enters underground layer, high pressure cement injection Influent stream ring 5, high-pressure slip-casting pipe 4 is flowed between runner 51 and seat slot 61, and soil layer side wall is sprayed to from four whitewashing mouths 41.
This specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a kind of long screw drill rod, including central tube (1), the helical blade (2) being fixed on central tube (1) periphery, setting In the ring flange (3) at shaft two ends, it is characterised in that:Also include the high-pressure slip-casting pipe (4) being fixed on central tube (1), high pressure The axis of Grouting Pipe (4) and the diameter parallel of central tube (1), a termination of high-pressure slip-casting pipe (4) are communicated with whitewashing mouth (41), Axis of the emission direction of whitewashing mouth (41) perpendicular to central tube (1).
2. long screw drill rod according to claim 1, it is characterised in that:Whitewashing mouth (41) is to ring flange adjacent thereto (3) air line distance is between 1m to 2m.
3. long screw drill rod according to claim 1, it is characterised in that:The emission direction and central tube of whitewashing mouth (41) (1) axis intersects.
4. long screw drill rod according to claim 1, it is characterised in that:High-pressure slip-casting pipe (4) be fixed in central tube (1) and Between helical blade (2).
5. long screw drill rod according to claim 1, it is characterised in that:The outlet of whitewashing mouth (41) is arranged on helical blade (2) away from the end face of central tube (1).
6. long screw drill rod according to claim 1, it is characterised in that:Coaxial rotation on the periphery of central tube (1) Influent stream ring (5) is connected with, the runner (51) of connection high-pressure slip-casting pipe (4), the company of being provided with influent stream ring (5) are provided with influent stream ring (5) The flow inlet (52) of passage flow duct (51).
7. long screw drill rod according to claim 6, it is characterised in that:Swivel base is connected with the periphery of central tube (1) (6), swivel base (6) is towards being provided with the seat slot (61) that is adapted with influent stream ring (5), high-pressure slip-casting on the end face of adjacent flange disk (3) Pipe (4) connects end face of the seat slot (61) away from adjacent flange disk (3), and runner (51) is opened on influent stream ring (5) axial end, influent stream Ring (5) is provided with the end face of runner (51) being inserted in seat slot (61) towards seat slot (61), swivel base (6) and adjacent ring flange (3) The axial length for being smaller than influent stream ring (5).
8. long screw drill rod according to claim 6, it is characterised in that:Flow inlet (52) is opened in the circumference of influent stream ring (5) On face.
9. long screw drill rod according to claim 6, it is characterised in that:Location hole (53) is provided with influent stream ring (5).
10. long screw drill rod according to claim 1, it is characterised in that:High-pressure slip-casting pipe (4) is provided with multiple and uniform Distribution.
CN201621262989.4U 2016-11-22 2016-11-22 A kind of long screw drill rod Active CN206309304U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621262989.4U CN206309304U (en) 2016-11-22 2016-11-22 A kind of long screw drill rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621262989.4U CN206309304U (en) 2016-11-22 2016-11-22 A kind of long screw drill rod

Publications (1)

Publication Number Publication Date
CN206309304U true CN206309304U (en) 2017-07-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621262989.4U Active CN206309304U (en) 2016-11-22 2016-11-22 A kind of long screw drill rod

Country Status (1)

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CN (1) CN206309304U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107313788A (en) * 2017-08-17 2017-11-03 新疆龟兹矿业有限公司 The method and device of grouting for water blocking under strong hydraulic connection
CN107806085A (en) * 2017-11-09 2018-03-16 周登楷 A kind of ultra-deep pit foundation encircles and hunts down water-stopping steel sheet pile and its construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107313788A (en) * 2017-08-17 2017-11-03 新疆龟兹矿业有限公司 The method and device of grouting for water blocking under strong hydraulic connection
CN107313788B (en) * 2017-08-17 2019-05-10 新疆龟兹矿业有限公司 The method and device of grouting for water blocking under strong hydraulic connection
CN107806085A (en) * 2017-11-09 2018-03-16 周登楷 A kind of ultra-deep pit foundation encircles and hunts down water-stopping steel sheet pile and its construction method

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Beijing Geotechnical Engineering Association

Assignor: BEIJING GEO-ENGINEERING Co.

Contract record no.: X2021990000087

Denomination of utility model: A kind of long spiral drill pipe

Granted publication date: 20170707

License type: Exclusive License

Record date: 20210205

EE01 Entry into force of recordation of patent licensing contract