CN201428129Y - Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction - Google Patents
Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction Download PDFInfo
- Publication number
- CN201428129Y CN201428129Y CN2009201097846U CN200920109784U CN201428129Y CN 201428129 Y CN201428129 Y CN 201428129Y CN 2009201097846 U CN2009201097846 U CN 2009201097846U CN 200920109784 U CN200920109784 U CN 200920109784U CN 201428129 Y CN201428129 Y CN 201428129Y
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- drill bit
- drilling tool
- stake
- pile
- rod
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Piles And Underground Anchors (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a heterotypic cement soil purdah stake stirring and directional jetting with a long spiral and a drilling tool for construction. The purdah stake comprises a main stake body and two convexlugs arranged on the surface of the main stake body along the axial direction, the included angle formed between the two convexlugs is 120 DEG-150 DEG, the main stake body and two convexlugs are an integrative structure, and are made of cement soil; and the drilling tool comprises a drill rod and a drill bit connected with the bottom end thereof, the drill bit comprises a tubular main body, a drill bit helical blade, drill teeth, and two sets of spray nozzles, and the two sets of spray nozzles form an included angle between 120 DEG-150 DEG. The purdah stake and the drilling tool for construction have the advantages that the purdah stake utilizes the mighty momentum and torque of a long spiral drilling machine and the superiority that the drill bit and the drilling tool caneasily chisel into the harder stratum, and combines the characteristics of a jet grouting directional jetting stake, so that, can better cut the ambient soil layer, and can cause the cut and churned cement soilpaste to easily and firmly bond with a reinforced concrete pile, thereby achieving the purposes of overcoming harder soil layer, stopping water reliably, saving cements, and carrying out construction in an efficient and civilized manner.
Description
Technical field
The utility model belongs to the pile in the building foundation construction, and particularly long helical stir is sprayed the pile of special-shaped cement earth pile surely.Be used for sealing (water proof or intercept water) curtain pile, slope protection pile and compound foundation pile (or the female stake of its composite pile).Especially making curtain in conjunction with pile-anchor retaining in the Beijing area in than hardpan (especially sand cobble stratum) is that other method is incomparable.
Background technology
Prior art is the patent of invention " long-auger jet-grouting stirring concrete earth curtain pile and job practices thereof " (200810101832.7) of my application, solved preferably and in the hardpan of Beijing area, formed reliable water-stop curtain problem, the cement-soil curtain pile places two slope protection pile, and further along (for example 5～20cm) help and the slope protection pile cooperative transformation, and stagnant water effect is more reliable.But when slope protection pile construction causes spacing bigger than normal or locally occur caving in during formation " pregnant ", its stagnant water effect will be affected, to strengthen the cement earth pile diameter for this reason, or increase to two by intrinsic one, its reliability or duration or cost are all with influenced, so be necessary to improve.
Summary of the invention
The purpose of this utility model just provides a kind of long helical stir and sprays special-shaped cement-soil curtain pile and construction drilling tool thereof surely, to solve the needs increasing cement earth pile diameter that prior art exists, even increase to two, all affected problem of its reliability or duration or cost by intrinsic one.
The technical solution adopted in the utility model is:
A kind of helical stir of growing is sprayed special-shaped cement-soil curtain pile surely and is comprised main pile body and be located at this main pile body surface two lug bars vertically that the angle between these two lug bars is 120～150 degree; This main pile body and lug bar are structure as a whole, and constitute by cement-soil.
A kind ofly form described long helical stir and spray the drilling tool that special-shaped cement-soil curtain pile adopts surely, comprise drilling rod and the drill bit that is connected with its bottom, the body of rod that described drilling rod comprises tubulose be connected the helical blade of its outer peripheral face or/and stirrer gear radially; Described drill bit comprises tubular body, drill bit helical blade, bores tooth and nozzle, the drill bit helical blade is connected the outer peripheral face of tubular body, be provided with nozzle radially and that communicate with high-pressure slip-casting pipe in passing described tubular body cavity in this drill bit helical blade, this high-pressure slip-casting pipe is through the body of rod of drilling rod; The bottom of described tubular body is the taper shape of sealing, installs on the radial line of the top of this sealing and bores tooth, and it is characterized in that: described nozzle is two groups, and 120～150 spend angles each other, and every group is provided with 1～3 nozzle.
The utility model has the advantages that: utilized long-spiral drilling machine very strong driving force and powerful moment of torsion, utilized its bit drilling tool more easily to creep into advantage than hard formation; Surely spray the characteristics of stake simultaneously in conjunction with churning, can cut soil layer on every side preferably, soil cement slurry after cutting is stirred is easy to the reinforced concrete pile strong bonded, reach the reliable purpose of water shutoff, even when slope protection pile construction causes spacing bigger than normal or locally occur caving in during formation " pregnant ", its stagnant water effect also can be guaranteed.In conjunction with the characteristics of agitation pile, mix and stir the advantage of the purpose that can reach sealing with more a spot of cement paste and the soil that chooses again.Its common advantage is brought into play in triplicity, reaches to overcome purpose reliable than hardpan, sealing, that save cement, efficient civilized construction.
Description of drawings
Fig. 1 is the cross-sectional structure schematic diagram that the long helical stir of the utility model is sprayed special-shaped cement-soil curtain pile surely;
Fig. 2 is the application schematic diagram that the long helical stir of the utility model is sprayed special-shaped cement-soil curtain pile surely;
Fig. 3 is the general structure schematic diagram of the utility model drilling tool;
Fig. 4 is the structural representation of drill bit among Fig. 3;
Fig. 5 is the A-A sectional view (wherein nozzle segment is the A-A sectional view of Fig. 6) of Fig. 4;
Fig. 6 is the B-B sectional view of Fig. 5.
The specific embodiment
Referring to Fig. 1, the utility model is a kind of to be grown helical stir and sprays special-shaped cement-soil curtain pile surely and comprise main pile body 1 and be located at this main pile body 1 surface two lug bars 3 vertically that the angle between these two lug bars 3 is 120～150 degree; This main pile body 1 and lug bar 3 are structure as a whole, and constitute by cement-soil.The zone of main pile body 1 central authorities is to draw porose area 2 when pile, and the outer peripheral areas of drawing porose area 2 is that the diffuser diameter after specific drilling tool when pile (below the detailed description is arranged) gunite can reach φ 900mm.Two lug bars 3 are to utilize the spray of deciding of the corresponding nozzle of specific drilling tool to form.
Referring to Fig. 2, the special-shaped cement-soil curtain pile of the utility model is located at and relies on inboard (back to a side of work plane 7) between two adjacent slope protection pile 6, and the diameter of curtain pile cylinder 1 can be selected according to the spacing of slope protection pile 6.Two lug bars 3 of main pile body 1 are respectively towards two adjacent slope protection pile 6, and combine with it and to form whole sealing (water proof or intercept water) curtain.
Referring to Fig. 3～Fig. 6, the utility model forms described long helical stir and sprays the specific drilling tool that special-shaped cement-soil curtain pile is adopted surely, comprise drilling rod 1 and the drill bit 2 that is connected with its bottom, described drilling rod 1 comprises the body of rod 12 of tubulose and is connected helical blade 11 (or the stirrer gear radially 13 of its outer peripheral face, or top helical blade 11, Lower Half stirrer gear 13).Described drill bit 2 comprises tubular body 24, drill bit helical blade 25, bores tooth 27 and nozzle 26, drill bit helical blade 25 is connected the outer peripheral face of tubular body 24, be provided with nozzle 26 radially and that communicate with high-pressure slip-casting pipe 29 in passing described tubular body cavity in this drill bit helical blade 25, this high-pressure slip-casting pipe 29 is through the body of rod of drilling rod 1.The bottom of described tubular body 24 is the taper shape of sealing, installs on the radial line of the top of this sealing and bores tooth 27.Described nozzle 26 is two groups, and 120～150 spend angles each other, and every group is provided with 1～3 nozzle 26.
Helical blade 11 on the described drilling rod 1 of this embodiment is positioned at the top of its body of rod 12, radially be connected with described stirrer gear 13 in the bottom of this body of rod 12, this stirrer gear 13 is some radial teeth of evenly arranging along circumference, also can be discontinuous helical blade (not shown).
Respectively be provided with flange 14 what 22, two flange by the mutual coaxial connection of bolt in the bottom of described drilling rod 1 and the top of drill bit 2.
Also can be provided with at least one bottom nozzle, this bottom nozzle inner communicate with described high-pressure slip-casting pipe 29 (not shown) in the closed bottom end of described drill bit 2.
Described drill bit helical blade 25 is the double helix of the single-screw or the setting that is centrosymmetric.
This length helical stir special-shaped curtain pile of earth of spraying water surely mainly is at executing sealing usefulness between the slope protection pile, should be reliable, also to save money; Moreover guarantee that speed of application is fast, on-the-spot civilization.Adopt more common big many very strong driving forces and the moment of torsion of mixing pile machine, rotary churning pile machine of long-spiral drilling machine to penetrate than hardpan.The curtain pile footpath can be selected according to the slope protection pile spacing.The common optional 0.4m of jet grouting and stirring drill tool external diameter wherein, 0.6m, 0.8m also can select non-standard footpath for use, 0.3m for example, 0.5m, 0.7m etc.
Guarantee that sealing (water proof or intercept water) is reliable for effect, just must guarantee to combine closely between curtain pile 1 and the slope protection pile 6, especially cause spacing bigger than normal or locally occur caving in during formation " pregnant " when slope protection pile 6 construction, also will guarantee to combine closely between curtain pile 1 and the slope protection pile 6
The drill bit upper side is 120～150 degree two groups of nozzles 26 is set for this reason, and rotary jet stirring when creeping into is downwards sprayed surely when upwards promoting or put spray and can form shape shown in Figure 1 and guarantee stressed rationally, and sealing is reliable.Field trial shows that the long-auger jet-grouting agitation pile is an example with 600mm diameter drill bit 2, can form diameter 900mm cement earth pile 1, decides spray and can form maximum length and reach 1350mm and adopt same drill bit 2 to adopt to carry.Nozzle 26 is 120～150 degree, and to spray water sealing effect surely more reliable, and it is stressed more reasonable to make long helical stir spray stake surely simultaneously.
Also want economic, quick, civilized following effect simultaneously:
(1) at first, guarantee from the stake position, curtain pile 1 is positioned at two slope protection pile 6 back (outward) some (such as 5-20cm) slightly partially, the center that guarantees curtain pile 1 center to center distance slope protection pile 6 is not more than 45cm, and curtain pile 1 is the back slightly partially, and some benefits are arranged, promptly be that the bank protection inter-pile soil is bearing soil pressure generation distortion simultaneously, can be near slope protection pile 6, it is tightr to make that curtain pile 1 combines with slope protection pile 6, and stagnant water effect is better.
(2) purpose of restriction curtain pile 1 and slope protection pile 6 center to center distance be guarantee churning or fixed spray radius limit in a reliable scope, guarantee churning or this part soil that can effectively cut, stir when spraying surely guarantees that it is even, reach the purpose of not staying " slit ".
(3) simultaneously on construction parameter, tool is to guarantee: adopt fixed speed to carry out churning when boring down, carry out deciding spray or pendulum spray with fixed speed again when rise in the back on earth.
(4) draw the hole: loosening in advance soil layer, promptly guarantee the stake position accurately, increase simultaneously and spray reliability, the resistance that reduces to stir.
(5) stir: " waterproof stake barricade " job practices cement consumption is bigger than normal, will economize cement, the soil in the hole should not all be replaced for this reason, and it promptly is to form the cement-soil curtain pile to spray surely and to stir compound mode that the present invention stirs fixed spray stake, most of soil nature makes it even by rotary jet stirring in the hole; Little with cement amount, according to field trial, with drilling tool external diameter φ 600mm, the curtain pile external diameter reaches more than the φ 800mm, can save cement 50%.
(6) to guarantee that speed of application is fast, be provided with two groups of 2～6 nozzles except the side is 120～150 degree on the drill bit 2, one or more nozzles are set in the bottom, improve its cutting, the ability of stirring also can be crept into fast than hardpan, reduces it greatly and stirs the resistance that bores down.
(7) guarantee on-the-spot civilized construction, slurry is returned in the aperture less, has adopted part long screw drill rod and the compound drilling tool of stirring drill tool, has carried out in the hole part and has fetched earth, and has guaranteed that the aperture returns slurry less or do not return slurry.The feature of this combination drill tool is top 1/4～1/3rd, long screw drill rod.Soil part in the hole can be discharged.As required also total length adopt and stir (polished rod or add the part stirrer gear) drilling tool.
(8) bottom is a stirring drill tool, for guaranteeing its mixing effect, has welded some horizontal drilling rods teeth 13 again on drilling rod.
(9) nozzle 26 adopts interference fit with cavity, or will squeeze into after nozzle 26 heating, and the cooling back forms airtight, guarantees expulsion pressure and jeting effect in the construction.
Claims (6)
1, a kind of long helical stir is sprayed special-shaped cement-soil curtain pile surely, it is characterized in that: comprise main pile body and be located at this main pile body surface two lug bars vertically that the angle between these two lug bars is 120～150 degree; This main pile body and lug bar are structure as a whole, and constitute by cement-soil.
2, a kind ofly form described long helical stir and spray the drilling tool that special-shaped cement-soil curtain pile adopts surely, comprise drilling rod and the drill bit that is connected with its bottom, the body of rod that described drilling rod comprises tubulose be connected the helical blade of its outer peripheral face or/and stirrer gear radially; Described drill bit comprises tubular body, drill bit helical blade, bores tooth and nozzle, the drill bit helical blade is connected the outer peripheral face of tubular body, be provided with nozzle radially and that communicate with high-pressure slip-casting pipe in passing described tubular body cavity in this drill bit helical blade, this high-pressure slip-casting pipe is through the body of rod of drilling rod; The bottom of described tubular body is the taper shape of sealing, installs on the radial line of the top of this sealing and bores tooth, and it is characterized in that: described nozzle is two groups, and 120～150 spend angles each other, and every group is provided with 1～3 nozzle.
3, drilling tool according to claim 2, it is characterized in that: the helical blade on the described drilling rod is positioned at the top of its body of rod, bottom at this body of rod radially is connected with described stirrer gear, and this stirrer gear is some radial teeth or discontinuous helical blades of evenly arranging along circumference.
4, drilling tool according to claim 2 is characterized in that: respectively be provided with flange in the bottom of described drilling rod and the top of drill bit, two flanges are by the mutual coaxial connection of bolt.
5, drilling tool according to claim 2 is characterized in that: the closed bottom end at described drill bit is provided with at least one bottom nozzle, and this bottom nozzle is inner to communicate with described high-pressure slip-casting pipe.
6, drilling tool according to claim 2 is characterized in that: described drill bit helical blade is the double helix of the single-screw or the setting that is centrosymmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097846U CN201428129Y (en) | 2009-07-02 | 2009-07-02 | Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097846U CN201428129Y (en) | 2009-07-02 | 2009-07-02 | Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201428129Y true CN201428129Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201097846U Expired - Lifetime CN201428129Y (en) | 2009-07-02 | 2009-07-02 | Heterotypic cement soil purdah stake stirring and directional jetting with long spiral and drilling tool for construction |
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| CN (1) | CN201428129Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886385A (en) * | 2010-07-28 | 2010-11-17 | 何世鸣 | Construction process of long-auger jet-grouting mixing curtain pile |
| CN102011552A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN103266601A (en) * | 2013-06-09 | 2013-08-28 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN104831735A (en) * | 2015-04-30 | 2015-08-12 | 中冶天工集团有限公司 | Water stop support structure integrating piles and screens as well as construction method and construction device thereof |
| CN110144890A (en) * | 2018-02-12 | 2019-08-20 | 上海建工二建集团有限公司 | Agitating device and pile-forming equipment |
| CN112160333A (en) * | 2020-10-21 | 2021-01-01 | 山东建勘集团有限公司 | Composite curtain pile construction drilling tool and construction method thereof |
-
2009
- 2009-07-02 CN CN2009201097846U patent/CN201428129Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886385A (en) * | 2010-07-28 | 2010-11-17 | 何世鸣 | Construction process of long-auger jet-grouting mixing curtain pile |
| CN102011552A (en) * | 2010-09-07 | 2011-04-13 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN102011552B (en) * | 2010-09-07 | 2013-01-16 | 李新桥 | Single-cone single spiral drill bit of rotary drilling rig |
| CN103266601A (en) * | 2013-06-09 | 2013-08-28 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN103266601B (en) * | 2013-06-09 | 2015-05-06 | 中铁科工集团有限公司 | Deep-layer dense multi-branch pile and application thereof |
| CN104831735A (en) * | 2015-04-30 | 2015-08-12 | 中冶天工集团有限公司 | Water stop support structure integrating piles and screens as well as construction method and construction device thereof |
| CN110144890A (en) * | 2018-02-12 | 2019-08-20 | 上海建工二建集团有限公司 | Agitating device and pile-forming equipment |
| CN112160333A (en) * | 2020-10-21 | 2021-01-01 | 山东建勘集团有限公司 | Composite curtain pile construction drilling tool and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |
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| CX01 | Expiry of patent term |