CN103938625B - Triangular Flos Mume shape high strength drilled pile and manufacturing process - Google Patents
Triangular Flos Mume shape high strength drilled pile and manufacturing process Download PDFInfo
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- CN103938625B CN103938625B CN201410178498.0A CN201410178498A CN103938625B CN 103938625 B CN103938625 B CN 103938625B CN 201410178498 A CN201410178498 A CN 201410178498A CN 103938625 B CN103938625 B CN 103938625B
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Abstract
The present invention relates to that good, the anti-tilt capability of a kind of verticality is good, the Triangular Flos Mume shape high strength drilled pile with supporting capacity at full capacity and manufacturing process, comprise concrete drill hole stake, the both ends of the surface of described concrete drill hole stake and pile body are connected by three plum blossom petals and form, and one or more concrete cement stake is positioned at triangle plum blossom Soil-cement high strength carrying pile body.Advantage: one be the blossom type cement drilled pile of angular distribution because the loaded area of pile foundation is large, the distribution triangular in shape of bearing support point, the good stability of pile foundation; Two is when the pile body of triangle plum blossom petal formation is in soft foundation, and three plum blossom petal pile bodies that its angle is equal act on soft foundation wall just as the protruding fore-sets of three posts, ensure that cement earth pile does not tilt in soft foundation, stand vertically; Three is one or more concrete cement stake is positioned at triangle plum blossom Soil-cement high strength carrying pile body, and the compactness of boring pile lining soil property is increased.
Description
Technical field
The present invention relates to that good, the anti-tilt capability of a kind of verticality is good, the Triangular Flos Mume shape high strength drilled pile with supporting capacity at full capacity and manufacturing process, belong to cement drilled pile and manufacture field.
Background technology
CN1632233A, title " the one-tenth pile operation method of bidirectional stirring pile ", a: leveling place; B: bidirectional stirring pile machine is located: crane suspention mixer is to referring to fixed pile and centering; C: stir: start bidirectional stirring pile machine, makes bidirectional stirring pile driver drilling rod native along leading truck to incision, opens and send stock pump, to soil body water-spray type slurry, and the blade Stirring cement-soil simultaneously of forward and reverse rotation respectively on bidirectional stirring pile driver drilling rod; D: bidirectional stirring pile driver drilling rod continues to sink and stirring concrete earth, until projected depth; E: stir while promoting, the blade of forward and reverse rotation on bidirectional stirring pile driver drilling rod continues stirring concrete earth; F: promote, be stirred to earth's surface or the above 50cm of design elevation, complete the construction of two-way stirring concrete drill hole stake.Its weak point: one be the shaping stake of background technology is still single-column cement earth pile, the single-column cement earth pile being in soft foundation because pile foundation area is little, stake surrounding soil property is rare softly, vertical is not enough to support single-column cement earth pile by support force and keeps vertically, thus very easily causing shaping single-column cement earth pile run-off the straight and scrapping; Two is because cement paste in single-column cement earth pile and native stirring are for stir in the same way, mixing between cement paste with soil cannot be made cannot to reach even, shaping single-column strength of the cement-soil piles thus certainly will be caused low.
Summary of the invention
Purpose of design: avoid the weak point in background technology, designs that good, the anti-tilt capability of a kind of verticality is good, the Triangular Flos Mume shape high strength drilled pile with supporting capacity at full capacity and manufacturing process.
Design scheme: in order to realize above-mentioned purpose of design.1, the both ends of the surface of concrete drill hole stake 1 and pile body to be connected the design formed by three plum blossom petals, are one of technical characteristics of the present invention.The object of such design is: due to the pile foundation (stake end face) of the concrete drill hole stake of the application in Triangular Flos Mume shape, the overall structure that is made up of three plum blossom petals that angle is mutually equal of pile body, not only large, the triangular in shape stable support of the supporting surface of pile foundation, and the pile body be in weak soil is that the triangle legs of the tripod supports mutually due to what formed, thus efficiently solves the defect that single-column cement earth pile very easily tilts.2, three axle rod bits are by the control of controller, make the design of rotating with mutually opposite direction between three axle drilling rods, are technical characteristics two of the present invention.The object of such design is: due to the distribution triangular in shape of three axle drilling rods, and it is overlapped between the boring aperture radius between three axle drilling rods of Triangle-Profile, form the triangle plum blossom stake holes that three lobes are interconnected, the agitation pile that the triangle plum blossom stake holes that this three lobe is interconnected is formed thereby, between three lobe pile bodies in its triangle plum blossom pile foundation, shape becomes the support at Coarse angle, improve the stability of pile foundation, and three lobe triangle plum blossom pile bodies greatly increase the contact area between pile body and soil layer, not only increase the supporting capacity of stake, and enhance the stability of pile body.3, the design having the distribution in spacing between multi-turn lug boss on three plum blossom concrete drill hole stake pile bodies is technical characteristic three of the present invention.The object of such design is: be provided with hoop projection in the spacing of three plum blossom concrete drill hole stake pile bodies, both just as the reinforcing rib of pile body, again just as a circle brace table, not only increase the friction factor between pile body and ground, effectively carry the bearing capacity establishing pile body, and the bearing strength of stake is obtained effectively improve.4, one or more pile body is the design in the concrete cement stake spiral press-in triangle plum blossom Soil-cement high strength carrying pile body of helicoidal structure, is technical characteristic four of the present invention.The object of such design is: because the last radicle of concrete cement stake of helicoidal structure is equipped with point, this pile top enough pierces in concrete along with the rotary of stake, by concrete extrusion weak soil, not only increase concrete compactness, and concrete extruding forces the soil property compactness of concrete drill hole pile lining to increase, with significantly enhancing weak soil to the bearing capacity of drilled pile, and then increase the bearing capacity of drilled pile.
Technical scheme 1: a kind of Triangular Flos Mume shape high strength drilled pile, comprise concrete drill hole stake, the both ends of the surface of described concrete drill hole stake and pile body are connected by three plum blossom petals and form, and one or more pile body is that the concrete cement stake of helicoidal structure is positioned at triangle plum blossom Soil-cement high strength carrying pile body.
Technical scheme 2: a kind of manufacturing process of Triangular Flos Mume shape high strength drilled pile, (one) preparatory stage: (1) stake position setting-out: Triangular Flos Mume shape steel pipe is squeezed into severely-weathered layer as guide pile by survey crew; (2) the steel cofferdam direction peg of lifting i iron welding and guide pile layering are connect fixing, guarantee that guide housing position is accurate; (3) inserted to play Triangular Flos Mume shape steel pile casting, casing submergence depth is through covering layer; (4) inserted to play steel sheet-pile cofferdam, till passing covering layer; (2) drilling stage: (1) installs three axle rigs, makes three axle drilling rod center superpositions, and its horizontal movement and bank error press code requirement adjustment; (2), time with three axle the impact drillings, the concrete setting should poured on adjacent holes position also, when having reached some strength, just can be spudded in; (3) three axle boring procedures adopt normal circulation slewing drilling machine to enter construction technology, and at clay layer, suitably throwing earth less, by creeping into pulping voluntarily, then strengthening concentration of hydraulic mixture Gu Bi at sandy soils, three axle rate of penetrations adapt with mud discharge rate all the time; (4) hydrostatic pressure of 0.2kg/cm2 is remained in Triangular Flos Mume hole, in triangle casing, water level is all the time higher than reservoir level, when meeting scall, suitable increase specific gravity of mud and denseness, alleviate as far as possible and rush the impact of liquid on hole wall, reduction rotating speed and the pressure of the drill are to meet quality control on construction requirement simultaneously; (5) drilling process leaves and takes slag specimen at any time, and every meter is no less than 1 group, and within the scope of design elevation 1.0 ~ 1.5m, every 30cm stays 1 group, and every pile slag specimen is no less than 3 groups; (3) in the clear hole stage: after (1) boring terminates, three axle drill bits are carried to apart from the 0.2-O.3m place at the bottom of hole, make it idle running, then will remain in the boring mud sucking-off at the bottom of hole; (3) after Triangular Flos Mume shape reinforcing cage sinks to fixing, again hole depth and sediment thickness is rechecked, if sediment exceeds standard, with airduct attached in conduit clear hole again, until all meet designing requirement and technological standards; (4) concrete perfusion: after clear complete hole, prefabricated Triangular Flos Mume shape reinforcing cage is vertically hung onto in hole, to be fixed behind location, then tremie concrete is used, during perfusion, concrete does not interrupt, otherwise easily occur pile breaking phenomenon, concrete continuous is filled into Triangular Flos Mume shape hole and pushes up; (5) piling: be that the concrete cement stake of helicoidal structure rotates in press-in triangle plum blossom Soil-cement high strength carrying pile body and namely obtains Triangular Flos Mume shape high strength drilled pile by one or more pile body.
The present invention is compared with background technology, and one is that the blossom type cement drilled pile of angular distribution is because the loaded area of pile foundation is large, the distribution triangular in shape of bearing support point, the thus good stability of pile foundation; Two is when the pile body of triangle plum blossom petal formation is in soft foundation, and three plum blossom petal pile bodies that its angle is equal act on soft foundation wall just as the protruding fore-sets of three posts, ensure that cement earth pile does not tilt in soft foundation, stand vertically; Three is one or more concrete cement stake is positioned at triangle plum blossom Soil-cement high strength carrying pile body, the compactness of boring pile lining soil property is not only made to increase, and significantly enhance the bearing capacity of soil property to drilled pile, and then increase the bearing capacity of drilled pile.
Accompanying drawing explanation
Fig. 1 is the perspective view of Triangular Flos Mume shape high strength drilled pile.
Fig. 2 is the perspective view of the Triangular Flos Mume shape high strength drilled pile with annular relief.
Fig. 3 is the plan structure schematic diagram of the first embodiment of Triangular Flos Mume shape high strength drilled pile.
Fig. 4 is the plan structure schematic diagram of Triangular Flos Mume shape high strength drilled pile the second embodiment.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1.A kind of Triangular Flos Mume shape high strength drilled pile, comprises concrete drill hole stake 1, and the both ends of the surface of described concrete drill hole stake 1 and pile body 2 are connected by three plum blossom petals and form, and a concrete cement stake 5 is positioned at triangle plum blossom Soil-cement high strength carrying pile body.This concrete tubular pile 5 both can be the real core stake of pre-cast concrete, also can prefabricated hollow core concrete stake, can also with the replacement such as high-strength plastic stock column, steel column, steel pipe, section bar of various shape.Angle between three plum blossom petals is equal or unequal.Reinforcing cage 3 in concrete drill hole stake 1 is triangular in shape quincunx.
Embodiment 2: with reference to accompanying drawing 2-4.On the basis of above-described embodiment 1, three plum blossom concrete drill hole stake 1 pile bodies 2 have multi-turn lug boss 4.Having between multi-turn lug boss 4 on three plum blossom concrete drill holes stake 1 pile body 2 distributes in spacing.
Embodiment 3: with reference to accompanying drawing 2-4.A kind of triangle plum blossom Soil-cement high strength bearing peg, the manufacturing process of described Triangular Flos Mume shape high strength drilled pile, wherein this Triangular Flos Mume shape high strength drilled pile comprises concrete drill hole stake 1, the both ends of the surface of described cement mixing method 1 and pile body 2 are connected by three plum blossom petals and form, and many concrete cement stakes (pile tube) 5 are positioned at triangle plum blossom Soil-cement high strength carrying pile body.These many concrete tubular piles 5 both can be the real core stakes of pre-cast concrete, also can prefabricated hollow core concrete stake, can also with the replacement such as high-strength plastic stock column, steel column, steel pipe, section bar of various shape.Angle between three plum blossom petals is equal or unequal.
Embodiment 4: on the basis of above-described embodiment, a kind of manufacturing process of Triangular Flos Mume shape high strength drilled pile, (one) preparatory stage: (1) stake position setting-out: Triangular Flos Mume shape steel pipe is squeezed into severely-weathered layer as guide pile by survey crew; (2) the steel cofferdam direction peg of lifting i iron welding and guide pile layering are connect fixing, guarantee that guide housing position is accurate; (3) inserted to play Triangular Flos Mume shape steel pile casting, casing submergence depth is through covering layer; The key of boring success or failure prevents hole wall collapse.When holing darker, the hole wall soil below groundwater table can cave in, even quicksand phenomenon occur under hydrostatic pressure in hole.If the head higher than groundwater table can be kept in boring, increase hydrostatic pressure in hole, can be hole wall, prevent the hole that collapses.Casing, except playing this effect, isolates surface water, protection ground, aperture, spud pile hole site and drill bit guide effect etc. simultaneously.The material making casing has wood, steel, steel concrete three kinds.Casing requires sturdy and durable, water-tight, and its internal diameter should larger than bore diameter (the about large 20cm of rotary drilling, diving bores, impact or the about large 40cm of cone is grabbed in punching), often saves length about 2 ~ 3m.General Common Steels casing.(4) inserted to play steel sheet-pile cofferdam, till passing covering layer; (5) drilling slurry is made up of water, clay (swell soil) and additive, there is floating outstanding boring mud, cooling drill bit, lubrication drilling tool, increase hydrostatic pressure, and form mud skin at hole wall, cut off seepage flow inside and outside hole, prevent from collapsing the effect in hole, the drilling slurry of modulation and the mud through circularly purifying, should determine slip consistency according to boring method and strata condition, slip consistency should look formation variation or the motor-driven grasp of operation requirements, mud is too rare, and deslagging ability is little, retaining wall weak effect; Mud is too thick can weaken drill bit impact function, reduces rate of penetration.(2) drilling stage: (1) installs three axle rigs, makes three axle drilling rod center superpositions, and its horizontal movement and bank error press code requirement adjustment; (2), time with three axle the impact drillings, the concrete setting should poured on adjacent holes position also, when having reached some strength, just can be spudded in; (3) three axle boring procedures adopt normal circulation slewing drilling machine to enter construction technology, and at clay layer, suitably throwing earth less, by creeping into pulping voluntarily, then strengthening concentration of hydraulic mixture Gu Bi at sandy soils, three axle rate of penetrations adapt with mud discharge rate all the time; (4) hydrostatic pressure of 0.2kg/cm2 is remained in Triangular Flos Mume hole, in triangle casing, water level is all the time higher than reservoir level, when meeting scall, suitable increase specific gravity of mud and denseness, alleviate as far as possible and rush the impact of liquid on hole wall, reduction rotating speed and the pressure of the drill are to meet quality control on construction requirement simultaneously; (5) drilling process leaves and takes slag specimen at any time, and every meter is no less than 1 group, and within the scope of design elevation 1.0 ~ 1.5m, every 30cm stays 1 group, and every pile slag specimen is no less than 3 groups; (3) the clear hole stage: the degree of depth of boring, diameter, position and hole shape are directly connected to pile quality and the right and wrong song of pile body.For this reason, except in boring procedure, observation is supervised closely, after boring reaches the designing requirement degree of depth, reply hole depth hole, Kong Wei, hole shape, aperture etc. check.Check in whole hole when meeting designing requirement completely, cleaning at the bottom of hole should be carried out immediately, avoid every time long so that mud sediment, cause borehole collapse.For friction pile when hole wall easily caves in, require that sediment thickness is not more than 30cm before pouring underwater concrete; When hole wall not easily caves in, be not more than 20cm.For stanchion, require that sediment thickness is not more than 5cm at jetting or before penetrating wind.Clear hole method is the rig difference and flexible Application that use.Usually can adopt direct circulation rotary rig, reacting cycle whirler vacuum-cleaner dredge and take out the clear holes such as slag cylinder.Wherein with the clear hole of suction dredge, equipment needed thereby is few, easy to operate, and clear hole is also comparatively thorough, but should use cautiously in unstable soil layer.Its principle is exactly be blown in suction dredge pipeline body refuse to blow out with the pressure-air that compressor produces.Therefore: after (a) boring terminates, three axle drill bits are carried to apart from the 0.2-O.3m place at the bottom of hole, make it idle running, then will remain in the boring mud sucking-off at the bottom of hole; B (), after Triangular Flos Mume shape reinforcing cage sinks to fixing, rechecks hole depth and sediment thickness again, if sediment exceeds standard, with airduct attached in conduit clear hole again, until all meet designing requirement and technological standards; (c) pouring underwater concrete: after clear complete hole, prefabricated Triangular Flos Mume shape reinforcing cage is vertically hung onto in hole, to be fixed behind location, then tremie concrete is used, due to motor in head vibrator intrinsic on conduit lower end wall, therefore the concrete edge perfusion when pouring into, limit vibration, make concrete continuous in vibration, be filled into Triangular Flos Mume shape hole and push up, do not interrupt during perfusion, otherwise easily occur pile breaking phenomenon; (4) piling: be that the concrete cement stake 5 of helicoidal structure rotates in press-in triangle plum blossom Soil-cement high strength carrying pile body and namely obtains Triangular Flos Mume shape high strength drilled pile by one or more pile body.
It is to be understood that: although above-described embodiment to be contrasted detailed text description to mentality of designing of the present invention; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any do not exceed mentality of designing of the present invention combination, increase or amendment, all fall within the scope of protection of the present invention.
Claims (6)
1. a manufacturing process for Triangular Flos Mume shape high strength drilled pile, is characterized in that:
(1) preparatory stage
(1) stake position setting-out: Triangular Flos Mume shape steel pipe is squeezed into severely-weathered layer as guide pile by survey crew;
(2) the steel cofferdam direction peg of lifting i iron welding and guide pile layering are connect fixing, guarantee that guide housing position is accurate;
(3) inserted to play Triangular Flos Mume shape steel pile casting, casing submergence depth is through covering layer;
(4) inserted to play steel sheet-pile cofferdam, till passing covering layer;
(2) drilling stage
(1) install three axle rigs, make three axle drilling rod center superpositions, its horizontal movement and bank error press code requirement adjustment;
(2), time with three axle the impact drillings, the concrete setting should poured on adjacent holes position also, when having reached some strength, just can be spudded in;
(3) three axle boring procedures adopt normal circulation slewing drilling machine to enter construction technology, and at clay layer, suitably throwing earth less, by creeping into pulping voluntarily, then strengthening concentration of hydraulic mixture Gu Bi at sandy soils, three axle rate of penetrations adapt with mud discharge rate all the time;
(4) hydrostatic pressure of 0.2kg/cm2 is remained in Triangular Flos Mume hole, in triangle casing, water level is all the time higher than reservoir level, when meeting scall, suitable increase specific gravity of mud and denseness, alleviate as far as possible and rush the impact of liquid on hole wall, reduction rotating speed and the pressure of the drill are to meet quality control on construction requirement simultaneously;
(5) drilling process leaves and takes slag specimen at any time, and every meter is no less than 1 group, and within the scope of design elevation 1.0 ~ 1.5m, every 30cm stays 1 group, and every pile slag specimen is no less than 3 groups;
(3) the clear hole stage
(1), after boring terminates, three axle drill bits are carried to apart from the 0.2-O.3m place at the bottom of hole, make it idle running, then will remain in the boring mud sucking-off at the bottom of hole;
(3) after Triangular Flos Mume shape reinforcing cage sinks to fixing, again hole depth and sediment thickness is rechecked, if sediment exceeds standard, with airduct attached in conduit clear hole again, until all meet designing requirement and technological standards;
(4) concrete perfusion:
After clear complete hole, prefabricated Triangular Flos Mume shape reinforcing cage is vertically hung onto in hole, will be fixed behind location, then tremie concrete is used, during perfusion, concrete does not interrupt, otherwise easily occurs pile breaking phenomenon, and concrete continuous is filled into Triangular Flos Mume shape hole and pushes up;
(5) piling: be that the concrete cement stake (5) of helicoidal structure rotates in press-in triangle plum blossom Soil-cement high strength carrying pile body and namely obtains Triangular Flos Mume shape high strength drilled pile by one or more pile body.
2. the manufacturing process of Triangular Flos Mume shape high strength drilled pile according to claim 1, wherein this Triangular Flos Mume shape high strength drilled pile comprises concrete drill hole stake (1), it is characterized in that: the both ends of the surface of described concrete drill hole stake (1) and pile body (2) are connected by three plum blossom petals and form, one or more pile body is that the concrete cement stake (5) of helicoidal structure is positioned at triangle plum blossom Soil-cement high strength carrying pile body.
3. the manufacturing process of Triangular Flos Mume shape high strength drilled pile according to claim 2, is characterized in that: the angle between three plum blossom petals is equal or unequal.
4. the manufacturing process of Triangular Flos Mume shape high strength drilled pile according to claim 2, is characterized in that: three plum blossom concrete drill holes stake (1) pile body (2) has multi-turn lug boss (4).
5. the manufacturing process of Triangular Flos Mume shape high strength drilled pile according to claim 4, is characterized in that: be positioned on three plum blossom concrete drill holes stake (1) pile body (2) and have the distribution in spacing between multi-turn lug boss (4).
6. the manufacturing process of Triangular Flos Mume shape high strength drilled pile according to claim 2, is characterized in that: the reinforcing cage (3) in concrete drill hole stake (1) is triangular in shape quincunx.
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| CN201410178498.0A CN103938625B (en) | 2014-04-30 | 2014-04-30 | Triangular Flos Mume shape high strength drilled pile and manufacturing process |
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| CN201410178498.0A CN103938625B (en) | 2014-04-30 | 2014-04-30 | Triangular Flos Mume shape high strength drilled pile and manufacturing process |
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| CN103938625B true CN103938625B (en) | 2016-04-27 |
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| CN110899766B (en) * | 2019-12-11 | 2020-12-08 | 新沂市锡沂高新材料产业技术研究院有限公司 | Drilling equipment for steel parts for civil engineering building |
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| CN1208102A (en) * | 1998-07-31 | 1999-02-17 | 叶长生 | Deposited pile and its construction |
| CN1542235A (en) * | 2003-04-29 | 2004-11-03 | 天津市水利科学研究所 | Strong-core deep injection stirring pile-making method and special drill bit therefor |
| JP2012197549A (en) * | 2011-03-09 | 2012-10-18 | Sachiko Kawarazaki | Method for making another flower from existing preserved flower, and method for making preserved flower sheet using the flower |
| CN203846487U (en) * | 2014-04-30 | 2014-09-24 | 杭州小尔科技有限公司 | Triangular-plum-blossom-shaped high-strength bored pile |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05311672A (en) * | 1992-05-08 | 1993-11-22 | Mori Kensetsu:Kk | Construction method for wooden building foundation |
| CN1126264A (en) * | 1994-12-26 | 1996-07-10 | 石寅生 | Making method for non-annular borehole cast-in-place pile |
| CN1208102A (en) * | 1998-07-31 | 1999-02-17 | 叶长生 | Deposited pile and its construction |
| CN1542235A (en) * | 2003-04-29 | 2004-11-03 | 天津市水利科学研究所 | Strong-core deep injection stirring pile-making method and special drill bit therefor |
| JP2012197549A (en) * | 2011-03-09 | 2012-10-18 | Sachiko Kawarazaki | Method for making another flower from existing preserved flower, and method for making preserved flower sheet using the flower |
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Address after: 311199 Room 501, building 11, No. 488-1, Donghu North Road, Donghu street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Zhongping small intellectual property consulting Co.,Ltd. Address before: Yuhang street Nanyuan District Henan Dai Road Hangzhou city Zhejiang province 311100 No. 46 Patentee before: Hangzhou Xiaoer Technology Co.,Ltd. |
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Effective date of registration: 20200417 Address after: Kaohsiung streets Pu Beilun District 315801 in Zhejiang province Ningbo City No. 18 Patentee after: Zhou Zhaodi Address before: 311199 Room 501, building 11, No. 488-1, Donghu North Road, Donghu street, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Zhongping small intellectual property consulting Co.,Ltd. |