CN200999592Y - Gyroscope drill and piling machine with gyroscope drill - Google Patents
Gyroscope drill and piling machine with gyroscope drill Download PDFInfo
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- CN200999592Y CN200999592Y CNU200720094913XU CN200720094913U CN200999592Y CN 200999592 Y CN200999592 Y CN 200999592Y CN U200720094913X U CNU200720094913X U CN U200720094913XU CN 200720094913 U CN200720094913 U CN 200720094913U CN 200999592 Y CN200999592 Y CN 200999592Y
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Abstract
The utility model discloses a peg-top aiguille and a piling machine with peg-top aiguille. The piling machine with the peg-top aiguille comprises a moving system, a batholith, a pail rack, a power system, a pipe-shaped drill stem, an aiguille and a high pressure concrete pouring system; wherein, the aiguille is arranged at head of the drill stem, a snail sheet in the middle of which is of the equal diameter; the diameter reduces gradually from the upper snail sheet to the lower snail sheet to form two tines up and down; the overall aiguille is a peg-top aiguille in top shape. The utility model is also provided with a high pressure rotating spray system and a plurality of high pressure rotating spouts are arranged on the aiguille. The utility model has the advantages of free of sleeve for forming holes and has reduced power and cost, which is applicable for the pile of large caliber and super bearing capacity and the trenchless pipeline construction.
Description
Technical field
The utility model relates to a kind of pile foundation construction machinery of construction of structures, especially a kind of gyro bit and the pile machinery that has gyro bit.
Background technology
In the pile foundation construction of building, bridge, municipal administration, water conservancy, harbour engineering, adopt the auger pile usually, existing auger is except that the sub-fraction of drill bit, the sea whelk diameter of remainder all is that spiral distribution length that equate and long screw auger is long isometric with stake, and its rotational resistance is very big.When implementing the long pile driving construction of heavy caliber, owing to the huge power that makes of its resistance is high, or have no alternative but dwindle stake footpath, long, so often can not meet design requirement.Though and short auger spiral part is short, need to divide several times to creep into and put on, in weak soil, can't realize.Auger is used in the coastal silt clay, because the removing difficulty of cohesive soil can't be used it.When being with the auger injection heavy caliber length stake of casing, it is very difficult to pull out tube, and cost is high.Existing auger is carried by on the sea whelk, takes the soil body in the hole out of ground, and then removes, as the method among the Chinese ZL200410094076.1.
So, deep at coastal sludge, silt clay, silty clay, and the place of geology characteristics such as powder fine sand retaining wall difficulty, decomposed rock, the auger of existing long and short auger, band sleeve and boring, heavy tube drawing stake machine all exist the defective of technology, bearing capacity and cost aspect.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of and can not excavate retaining wall without casing, and can enter the gyro bit that can be suitable for different geology and requirement for bearing capacity and the pile machinery that has gyro bit on the hard upper strata of certain depth.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of gyro bit, and the sea whelk equal diameters of drill bit mid portion, top sea whelk and bottom sea whelk diameter reduce gradually, form upper and lower two points, and whole drill bit is top in shape.
A kind of pile machinery that has gyro bit, comprise mobile system, chassis, pile frame, dynamical system, drilling rod, drill bit and high pressure injection concrete system, drill bit is positioned at the head of drilling rod, the sea whelk of drill bit mid portion is isometrical sea whelk, top sea whelk and bottom sea whelk diameter reduce gradually, form upper and lower two points, whole drill bit is for being peg-top gyro bit.
Described high pressure injection concrete system is by High pressure cement pump, defeated concrete conduit and annotate the concrete mouth and constitute, and drilling rod is the tubulose drilling pipe, and defeated concrete conduit inserts drilling rod, by high pressure injection concrete passage that forms in the drilling rod and the notes concrete mouth notes concrete that is formed on point gyro bit under.
The high-pressure rotary-spray system also is housed, a plurality of high-pressure rotary-spray mouths are arranged on drill bit.
Described a plurality of high-pressure rotary-spray mouth is the last high spout that is arranged in the upper, middle and lower of gyro bit, high spout and following high spout.
Described drilling rod is the sleeve pipe drilling pipe, floss hole on the mud is being arranged below the last high spout, above following high spout, floss hole under the mud is arranged, the inner space of Sleeve drill inner casing tube is divided into two, it on one side is the high pressure injection concrete passage of high pressure injection concrete system, another side for mud on floss hole communicates under floss hole and the mud spoil disposal slurry passage, be the high-pressure rotary-spray passage between internal and external casing, be provided with in the high-pressure rotary-spray passage with last high spout, in high spout and down the last high spout passage that communicates of high spout, in high spout passage and time high spout passage.
Described high pressure injection concrete system is by High pressure cement pump, defeated concrete conduit and annotate the concrete mouth and constitute, and defeated concrete conduit inserts high pressure injection concrete passage, by high pressure injection concrete passage be formed on the notes concrete mouth notes concrete of point gyro bit under.
On sea whelk, also be provided with and end native valve and rake teeth.
The beneficial effects of the utility model are:
1, in bury, need not take the soil body in the hole out of ground by carrying on the sea whelk like that by existing auger, and then remove, it utilized in the weak soil can the soil compaction pore-forming characteristic, the cylinder hole that soil compaction forms when carrying brill by the isometrical sea whelk part (being the part of the middle part sea whelk equal diameters of gyro bit) of gyro bit comes pore-forming, since the length of gyro bit only be auger 1/10th or still less, its torsion, resistance reduce greatly; The top of gyro bit is " point " shape, and the resistance that pulls out on it reduces greatly; It is few that bit part carries earth, also just exempted the hardship of clay, silt displacement, makes auger irrealizable, and method of the present utility model is able to realize the pore-forming pile in clay geology.
2, existing auger drill bit is changed into upper and lower two points, the sea whelk on top is all removed, only stay drilling rod, the brill footpath and the stake that then can strengthen the gyro brill conversely greatly are long, when running into hard formation silt flour sand, the height spray system of point can cutting soil on the gyro bit, and is opposite with the top-down slurrying pore-forming of routine, be from the bottom up the slurrying pore-forming fall hole forming method, solved the difficulty that casing was directly put on or dialled to the large-caliber spiral rig.Because gyro bit crowded protected effect, at the lower tip part grouting pile-forming, saved traditional spiral casing again, make auger to put on pile greatly easy, and solved bored pile in liquefaction powder fine sand because the difficult pore-forming difficulty problem that causes of retaining wall.
3, drilling rod is with high-intensity cover pipe manufacturer.Such gyro bit can lean on that soil compaction is upper and lower creeps into, become the original native pore-forming of carrying and be the soil compaction pore-forming,, only remained drilling rod and drill bit because the quantity of sea whelk significantly reduces (reducing 70 ~ 90%), so the vertical frictional resistance of its torsion and side direction reduces greatly, has reduced power significantly.
Description of drawings
Fig. 1 is the composition schematic diagram of the pile machinery that has gyro bit of the utility model the 1st embodiment.
Fig. 2 be the utility model the 1st embodiment the structure chart of gyro bit.
Fig. 3 is the composition schematic diagram of the pile machinery that has gyro bit of the utility model the 2nd embodiment.
Fig. 4 be the utility model the 2nd embodiment the structure chart of gyro bit.
Fig. 5 is the sleeve pipe drilling pipe drawing in side sectional elevation of the gyro bit of the 2nd embodiment of the present utility model.
Among the figure, 1, pile frame; 2, chassis; 3, mobile system; 4, dynamical system; 5, drilling pipe; 6, high pressure jet grouting system; 8, gyro bit; 9, isometrical sea whelk; 10, top sea whelk; 11, bottom sea whelk; 12, annotate the concrete mouth; 13, high pressure injection concrete passage; 4, High pressure cement pump; 15, defeated concrete conduit; 16, spoil disposal slurry passage; 17, high-pressure rotary-spray passage; 18, go up high spout passage; 19, following high spout passage; 20, go up high spout; 21, high spout in; 22, following high spout; 23, floss hole on the mud; 24, end native valve; 25, high spout passage in; 26, rake teeth; 27, floss hole under the mud.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Embodiment 1
Gyro bit of the present utility model, the sea whelk equal diameters of drill bit mid portion, top sea whelk and bottom sea whelk diameter reduce gradually, form upper and lower two points, and whole drill bit is top in shape.
As shown in Figure 1, 2, the pile machinery that has gyro bit of the present utility model, the dynamical system 4, tubulose drilling pipe 5, gyro bit 8 and the high pressure injection concrete system that comprise the chassis 2 that is installed on the mobile system 3, pile frame 1, piling, gyro bit 8 is positioned at the head of drilling pipe 5, the sea whelk equal diameters of drill bit mid portion, top sea whelk and bottom sea whelk diameter reduce gradually, form upper and lower two points, and whole drill bit is top in shape.The sea whelk that is gyro bit 8 is by isometrical sea whelk 9, and top sea whelk 10 and bottom sea whelk 11 are formed.The length of isometrical generally speaking sea whelk 9 parts is 1 ~ 2 meter.
High pressure injection concrete system is by concrete pump 14, defeated concrete conduit 15 and annotate concrete mouth 12 and constitute, and defeated concrete conduit 15 inserts tube drilling rods 5, annotates concretes by high pressure injection concrete passage 13 that forms in the tube drilling rod 5 and the notes concrete mouth 12 that is formed on 8 times points of gyro bit.
The piling method that has the pile machinery of above-mentioned gyro bit, pile in weak soil such as mud, silt clay, silty clay may further comprise the steps successively:
A. at first creep into the gyro rig, after creeping into the arrival projected depth, start concrete pump concrete is pumped into drilling rod core pipe by defeated concrete conduit, inject concrete by annotating the concrete mouth, marginal not is gone into concrete edge and is carried the gyro brill, and by gyro bit soil compaction pore-forming, the brill marginal not is carried on the limit, up to design elevation, the concrete pile body of formin.
B. before concrete initial set, reinforcing cage is inserted the pile body of plain concrete.
Said method also can be used for the construction of non-excavation pipeline.
The piling method that has the pile machinery of above-mentioned gyro bit is used for soft hard place foundation pile base pile down, may further comprise the steps successively:
A. at first creep into the gyro rig, when bit drills is crossed weak soil arrival hardpan, earlier drill bit is pierced hard formation, after gyro bit all enters hard formation, brill is carried in beginning rotation in the same way, carry to weak soil, oppositely change and bore, pan soil between the isometrical sea whelk of drill bit is bored in the weak soil of all weak soils around clamp-oning by top, and the regolith of depositing between sea whelk is replaced as weak soil, and then is rotated in the forward and continues to creep into after sinking to creeping into the degree of depth that arrived to last time, after below the degree of depth that drill bit all enters last time once more and reaches, carry brill again, circulation repeats above-mentioned steps, until the degree of depth that reaches designing requirement;
B. after replacing the arrival projected depth up and down, starting concrete pump is injected into concrete in the sharp down hole of gyro brill by infusion concrete conduit and notes concrete mouth, pumping of concrete limit, limit is carried gyro and is bored, by gyro bit soil compaction pore-forming, the limit is carried and is bored the marginal not concrete up to design elevation, the concrete pile body of formin.
C. before concrete initial set, reinforcing cage is inserted the pile body of plain concrete.
Said method also can be used for the construction of non-excavation pipeline.
Certainly, the reinforcing cage in above-mentioned two methods inserts the plain concrete step and according to circumstances can omit.
In sum, equipment of the present utility model need not be done to carry on the sea whelk as existing spiral drilling machine in bury and take the soil body in the hole out of ground and then removing; It utilized in the weak soil can the soil compaction pore-forming characteristic, the cylinder hole that soil compaction forms when carrying brill by the cylinder (being the part of the middle part sea whelk equal diameters of gyro bit) of drill bit comes pore-forming, since the length of gyro bit only be augers 1/10th or still less, its torsion, resistance reduce greatly: in addition, the top of gyro bit also is " point " shape, and the resistance that pulls out on it reduces greatly; Because to carry earth few for bit part, also just exempted the hardship of the removing of clay, mud, thereby the irrealizable worker's method of auger gyro bores and is able to use in clay geology.
In last soft hard down soil layer, it can creep into the soil in the hard formation earlier on the back with gyro bit and carry, and utilizes forward and reverse rotation that the soil body is replaced, be in the pan soil pore-forming and created condition, improve again and reinforced the top weak soil, also need not efflux earth, mud, economic environmental protection.
Shown in Fig. 3,4, the pile machinery that has gyro bit of the present utility model, the dynamical system 4, sleeve pipe drilling pipe 5, gyro bit 8 and the high pressure concrete system that comprise the chassis 2 that is installed on the mobile system 3, pile frame 1, piling, gyro bit 8 is positioned at the head of sleeve pipe drilling rod 5, the drill bit mid portion is isometrical sea whelk 9, top sea whelk 10 and bottom sea whelk 11 diameters reduce gradually, form upper and lower two points, and whole drill bit is for being top in shape; High-pressure rotary-spray system 6 also is housed, a plurality of high-pressure rotary-spray mouths are housed on drill bit.The length of isometrical generally speaking sea whelk 9 parts is 1 ~ 2 meter.
Described a plurality of high-pressure rotary-spray mouth is last high spout 20, high spout 21 and the following high spout 22 that is arranged in the upper, middle and lower of gyro bit 8.
As shown in Figure 5, drilling rod is a sleeve pipe drilling pipe 5, floss hole 23 on the mud is arranged below last high spout 20, above following high spout 22, floss hole 27 under the mud is arranged, the inner space of sleeve pipe drilling pipe 5 inner sleeves is divided into two, it on one side is the high pressure injection concrete passage 13 of high pressure injection concrete system, another side for mud on floss hole 27 communicates under floss hole 23 and the mud spoil disposal slurry passage 16, be high-pressure rotary-spray passage 17 between internal and external casing, be provided with in the high-pressure rotary-spray passage 17 and last high spout 20, in high spout 21 and the last high spout passage 18 that communicates of high spout 22 down, in high spout passage 25 and high spout passage 19 down.
High pressure injection concrete system is by High pressure cement pump 14, defeated concrete conduit 15 and annotate concrete mouth 12 and constitute, and defeated concrete conduit 15 inserts high pressure injection concrete passage 13, annotates concretes by high pressure injection concrete passage 13 and the notes concrete mouth 12 that is formed on 8 times points of gyro bit.
Also be provided with the rake teeth 26 that plays the native valve 24 of ending of the native effect of retaining when reversing and play fragmentation when boring on the sea whelk.
Below, the "forming column that adopts above-mentioned machinery is elaborated respectively:
The piling method that has the pile machinery of above-mentioned gyro bit is used for the liquefaction powder fine sand geology pile in large-caliber pile hardpan pile or retaining wall pore-forming difficulty, may further comprise the steps successively:
A. creep into the gyro rig, when creeping at need, startup high-pressure rotary-spray system by following high spout, forms mud with the jet cutting soil, makes mud starch passage to ground, to guarantee creeping into projected depth in hard formations such as flour sand from following plasma discharge mouth through spoil disposal.
B. when creep into arrive projected depth after, the high-pressure rotary-spray system of tip opens on the gyro bit, utilizes jet rotary-jet cutting soil, flows into the mud emission mouth after making the soil body become mud, discharges ground along the slurry of the spoil disposal in the pipe in drilling rod passage;
C. when the high-pressure rotary-spray system opens, carry drill bit synchronously and start high pressure injection concrete system by gyro bit apex point bottom, make chutable concrete from high pressure injection concrete passage by pipe in the drilling rod, from drill bit down the notes concrete mouth of point be injected into by gyro and bore in the cylinder stake hole, middle part that isometrical sea whelk extruding forms, until reaching design elevation, the concrete pile body of formin.
D. before concrete initial set, reinforcing cage is inserted the pile body of plain concrete.
Certainly, if do not creep into difficulty, can omit step a.
The piling method that has the pile machinery of above-mentioned gyro bit is used for the churning that adds high pressure of concrete pressure injection and forms compound pile, may further comprise the steps successively:
A. creep into the gyro rig, when creeping at need, startup high-pressure rotary-spray system by following high spout, forms mud with the jet cutting soil, makes mud starch passage to ground, to guarantee creeping into projected depth in hard formations such as flour sand from following plasma discharge mouth through spoil disposal.
B. when creep into arrive projected depth after, the high-pressure rotary-spray system of tip opens on the gyro bit, utilizes jet rotary-jet cutting soil, flows into the mud emission mouth after making the soil body become mud, discharges ground along the slurry of the spoil disposal in the pipe in drilling rod passage;
C. when the high-pressure rotary-spray system opens, carry drill bit synchronously and start high pressure injection concrete system by gyro bit apex point bottom, make chutable concrete from high pressure injection concrete passage by pipe in the drilling rod, from drill bit down the notes concrete mouth of point be injected into by gyro and bore in the cylinder stake hole, middle part that isometrical sea whelk extruding forms, start the high-pressure rotary-spray system simultaneously, by in high spout to stake week native high-pressure rotary-spray inject cement paste, make the stake of the certain thickness cement soil body parcel of the outer formation of concrete pile concrete core, form the common compound pile of forming of the concrete core stake cement earth pile peripheral, until reaching design elevation with it
D. before concrete initial set, reinforcing cage is inserted concrete pile body.
Certainly, if do not creep into difficulty, can omit step a.
Because the concrete core stake becomes compound pile with its peripheral cement earth pile mutual group, the core pile is subjected to upper load; Stake (ring-type) increases the side friction and the anti-horizontal thrust of core stake on the cement, this kind worker method can improve for the bearing capacity of core stake 30% ~ 100% or more than, have high economic benefit.
In sum, on the very high powder of compactness, in the flour sand, become bigbore stake, when the soil compaction pore-forming is difficult or impossible, it can utilize on the gyro bit heavy jet grouting system on the point to become circle-shaped and destroy the soil body and cause mud by spraying, and makes the spoil disposal passage of mud pipe in drilling rod and upwards discharges ground, upwards carries simultaneously and is drilled to the hole, the filling system that is located at down point is to filler piles such as hole inter-sync pressure injection slurries, and this is that existing long screw auger all can't be realized with short auger.
Utilize the heavy jet grouting system on the drill bit, can be to stake week native gunite or other any materials that can soil mass consolidation, compactness, the intensity of stake week soil are improved, thereby improve the vertical bearing capacity and the anti-horizontal thrust of stake greatly, the cost performance that this function reaches is much more superior than its existing piling method.
Said method also can be used for the construction of non-excavation pipeline.
In sum, among the embodiment that content of the present utility model is not confined to, knowledgeable people in the same area can propose other embodiment easily within technological guidance's thought of the present utility model, but this embodiment is included within the scope of the present utility model.
Claims (8)
1. a gyro bit is characterized in that, the sea whelk equal diameters of drill bit mid portion, and top sea whelk and bottom sea whelk diameter reduce gradually, form upper and lower two points, and whole drill bit is top in shape.
2. pile machinery that has gyro bit, comprise mobile system, chassis, pile frame, dynamical system, drilling rod, drill bit and high pressure injection concrete system, it is characterized in that, drill bit is positioned at the head of drilling rod, the sea whelk of drill bit mid portion is isometrical sea whelk (9), top sea whelk (10) and bottom sea whelk (11) diameter reduce gradually, form upper and lower two points, and whole drill bit is for being peg-top gyro bit (8).
3. the pile machinery that has gyro bit according to claim 2, it is characterized in that, described high pressure injection concrete system is by High pressure cement pump (14), defeated concrete conduit (15) and annotate concrete mouths (12) formation, drilling rod is tubulose drilling pipe (5), defeated concrete conduit (15) inserts tubulose drilling pipe drilling rod (5), annotates concrete by high pressure injection concrete passage (13) that forms in the tubulose drilling pipe (5) and the notes concrete mouth (12) that is formed on point under the gyro bit (8).
4. the pile machinery that has gyro bit according to claim 2 is characterized in that, high-pressure rotary-spray system (6) also is housed, and a plurality of high-pressure rotary-spray mouths are arranged on drill bit (8).
5. the pile machinery that has gyro bit according to claim 4 is characterized in that, described a plurality of high-pressure rotary-spray mouths are last high spout (20), high spout (21) and the following high spout (22) that is arranged in the upper, middle and lower of gyro bit (8).
6. the pile machinery that has gyro bit according to claim 5, it is characterized in that, described drilling rod is sleeve pipe drilling pipe (5), in the below of last high spout (20) floss hole on the mud (23) is arranged, there is floss hole under the mud (27) top at following high spout (22), the inner space of sleeve pipe drilling pipe (5) inner sleeve is divided into two, it on one side is the high pressure injection concrete passage (13) of high pressure injection concrete system, another side for mud on floss hole (27) communicates under floss hole (23) and the mud spoil disposal starch passage (16), be high-pressure rotary-spray passage (17) between internal and external casing, be provided with in the high-pressure rotary-spray passage (17) and last high spout (20), in high spout (21) and the following last high spout passage (18) that communicates of high spout (22), in high spout passage (25) and following high spout passage (19).
7. the pile machinery that has gyro bit according to claim 4, it is characterized in that, described high pressure injection concrete system is by High pressure cement pump (14), defeated concrete conduit (15) and annotate concrete mouths (12) formation, defeated concrete conduit (15) inserts high pressure injection concrete passage (13), by high pressure injection concrete passage (13) be formed on notes concrete mouth (12) notes concrete sharp gyro bit (8) under.
8. the pile machinery that has gyro bit according to claim 4 is characterized in that, also is provided with to end native valve (24) and rake teeth (26) on sea whelk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720094913XU CN200999592Y (en) | 2007-01-08 | 2007-01-08 | Gyroscope drill and piling machine with gyroscope drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720094913XU CN200999592Y (en) | 2007-01-08 | 2007-01-08 | Gyroscope drill and piling machine with gyroscope drill |
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| Publication Number | Publication Date |
|---|---|
| CN200999592Y true CN200999592Y (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720094913XU Expired - Lifetime CN200999592Y (en) | 2007-01-08 | 2007-01-08 | Gyroscope drill and piling machine with gyroscope drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200999592Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008086693A1 (en) * | 2007-01-08 | 2008-07-24 | Tianjin Leihua Hi-Tech. Co., Ltd. | Piling machine with high-pressure jet spiral bit and its piling method |
| CN1995689B (en) * | 2007-01-08 | 2010-12-08 | 天津雷华科技有限公司 | Pile forming method of pile forming mechanism with gyro bit |
| CN102322058A (en) * | 2011-06-17 | 2012-01-18 | 北京荣创科宏岩土工程有限公司 | Construction process and equipment for downhole impacting high-pressure jet grouting pile |
-
2007
- 2007-01-08 CN CNU200720094913XU patent/CN200999592Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008086693A1 (en) * | 2007-01-08 | 2008-07-24 | Tianjin Leihua Hi-Tech. Co., Ltd. | Piling machine with high-pressure jet spiral bit and its piling method |
| CN1995685B (en) * | 2007-01-08 | 2010-11-03 | 天津雷华科技有限公司 | Pile forming mechanism with high-pressure-jet gyro bit and pile forming method |
| CN1995689B (en) * | 2007-01-08 | 2010-12-08 | 天津雷华科技有限公司 | Pile forming method of pile forming mechanism with gyro bit |
| CN102322058A (en) * | 2011-06-17 | 2012-01-18 | 北京荣创科宏岩土工程有限公司 | Construction process and equipment for downhole impacting high-pressure jet grouting pile |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080102 Effective date of abandoning: 20070108 |