CN1274911C - Bi-directional cement soil mixing pile machine - Google Patents
Bi-directional cement soil mixing pile machine Download PDFInfo
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- CN1274911C CN1274911C CN 200410065861 CN200410065861A CN1274911C CN 1274911 C CN1274911 C CN 1274911C CN 200410065861 CN200410065861 CN 200410065861 CN 200410065861 A CN200410065861 A CN 200410065861A CN 1274911 C CN1274911 C CN 1274911C
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Abstract
A bi-directional cement soil stirrer is a construction mechanical device which is suitable for processing soft soil foundations. The stirrer is composed of a stirrer body (1), a power transmission system (2), an outer drill rod (3), an inner drill rod (4) and a drill bit (5), wherein the power transmission system is positioned at the upper part of the stirrer body (1); the inner drill rod (4) is positioned in the outer drill rod (3) and connected with a power transmission system connecting flange (211) of the inner drill rod in the power transmission system (2), and the outer drill rod (3) is connected with a power transmission system connecting flange (25) of the outer drill rod; the drill bit (5) is arranged at the lower part of the inner drill rod (4). The stirrer has the advantages of convenient construction, simple operation and easy control. Two shafts of the present invention rotate in two directions to drive two groups of stirring vanes to rotate simultaneously in two directions, so that the filling amount of cement slurry into a pile body can be ensured without having the phenomenon of slurry overflow; meantime, the present invention can ensure that the cement and soil of the pile body are stirred sufficiently and uniformly, guarantee the pile forming quality and the quality of the pile body, and enhance the efficiency by more than one time.
Description
Technical field
The present invention is a kind of construction equipment that is applicable to Soft Ground, belongs to the technical field that construction machinery is made.
Background technology
Cement mixing method is succeeded in developing as far back as Sweden, carries out laboratory experiment and mechanical development work by Metallurgical Research Institute, Department of Architecture and Water Planning And Design Institute Of Traffic Ministry in domestic 1977.In the reinforced soft soil ground engineering, succeedd first in 1980.After this in national reinforced soft soil ground engineering, promote and come, particularly the Soft Ground in highway construction.
Soft Ground in the highway construction is to guarantee the key of project link, and occupies larger proportion in the engineering total price.A large amount of engineering practices show that it is simple that the cement mixing method method has construction, fast, vibrates advantages such as little, can improve the stability of soft foundation effectively, reduce and the control settling amount.Cement mixing method has now developed into a kind of soft foundation processing method commonly used, mainly is applicable to reinforce the saturated soft clay ground.This method is to utilize cement materials such as (or lime) as curing compound, by special Mixing Machine, in the ground depths, on the spot weak soil and curing compound are forced to stir, by producing series of physical and chemical reaction between curing compound and weak soil, weak soil is hardened the cement mixing method that becomes to have globality, water stability and certain intensity.This cement mixing method is formed composite foundation with all soil of stake, thereby improves bearing capacity of foundation soil, reduces foundation settlement.
Also there are more following problems in cement mixing method in Soft Ground:
(1) the ubiquity cement-soil stirring in ground is handled of cement mixing method weak soil is inhomogeneous, influences pile quality.
(2) ubiquity cement paste skewness in pile body in Soft Ground does not reach due requirement at 6m to the following cement paste incorporation of 7m especially.
(3) cement mixing method ubiquity in work progress emits the slurry phenomenon, and a large amount of cement pastes ground of emerging influences cement paste incorporation in the pile body.
(4) existing cement-soil stirring pile construction mechanical execution generally needs four to stir two sprays, and work efficiency is low.
Owing to the existence of last genus problem, influenced the quality and the range of application of cement mixing method.
Summary of the invention
Technical problem: the objective of the invention is the problem that exists in the above-mentioned construction, construction machinery to cement mixing method improves, propose a kind of two-way stirring concrete earth mixing pile construction machinery, promptly the bi-directional cement soil mixer improves construction effect and workmanship.
Technical scheme: this invention mainly is with the unidirectional single shaft mixer of construction cement mixing method, changes into the concentric mixer of two-way twin shaft, is provided with to be rotated in the forward blade and mouth spray is set on interior drilling rod, and the reverse rotation blade is installed on the drilling rod outside.By two-way power drive system, drive the positive and negative two directions rotation of concentric twin shaft.Play the effect of mud jacking and two-way stirring concrete earth in the forward and reverse while rotary course of blade, emit approach on the blocking-up cement paste, the assurance cement paste evenly distributes in pile body and stirs, and guarantees pile quality.
This mixer is made up of fuselage, power drive system, outer drilling rod, interior drilling rod, drill bit, wherein, power drive system is positioned at the top of fuselage, interior drilling rod is arranged in outer drilling rod, interior drilling rod is connected with interior drilling rod power drive system adpting flange in the power drive system, outer drilling rod is connected with outer drilling rod power drive system adpting flange, the bottom of drilling rod in drill bit is located at.Power drive system has the drive unit of two groups of symmetries, drives outer drilling rod and interior drilling rod respectively; Interior drilling rod motor is connected with interior drilling rod reducer, drill rod connector in the output termination of interior drilling rod reducer, the output of interior drill rod connector is fixed with interior drilling rod power gear, interior drilling rod power gear is connected with interior drilling rod power transmission gear by interior drilling rod power transmission chain, drilling rod power drive system adpting flange in the centre of interior drilling rod power transmission gear connects by tube connector, drilling rod in the following termination of interior drilling rod power drive system adpting flange, the upper end of the tube connector in the middle of the interior drilling rod power transmission gear is connected with water swivel, and the upper end of water swivel connects Grouting Pipe; Outer drilling rod motor is connected with outer drilling rod reducer, the outer drill rod connector of the output termination of outer drilling rod reducer, the output of outer drill rod connector is fixed with outer drilling rod power gear, outer drilling rod power gear is connected with outer drilling rod power transmission gear by outer drilling rod power transmission chain, the centre of outer drilling rod power transmission gear connects outer drilling rod power drive system adpting flange by tube connector, the outer drilling rod of the following termination of outer drilling rod power drive system adpting flange.The front end both sides of drilling rod are fixed with outer drilling rod stirring vane outside, are fixed with drill bit at the front end of interior drilling rod by drill bit and interior drilling rod adpting flange, are fixed with the drill bit stirring vane in the front end both sides of drill bit.
The present invention is designed to the concentric drilling rod of twin shaft to the drilling rod of cement mixing method, is provided with to be rotated in the forward blade and mouth spray is set on interior drilling rod, and the reverse rotation blade is installed on the drilling rod outside.Drive the two-way rotation of the concentric drilling rod of twin shaft by power drive system, drive the forward and reverse rotation simultaneously of two groups of blades by drilling rod again.The crushing of the reverse rotation of group blade in the utilization, cement grout is controlled between forward and reverse rotating vane, make cement grout can not go upward to ground along drilling rod, cement grout can not occur and run off, thereby can guarantee that incorporation and the cement paste of cement paste in pile body is evenly distributed in pile body; Because forward and reverse rotation of drilling rod drives the forward and reverse rotation simultaneously of two groups of blades, makes that the stirring of cement-soil is more full and uniform.
Beneficial effect: this mechanical execution is convenient, simple to operate, is easy to grasp.Concerning the workman of skilled operation with traditional soil-cement stirring, need not training can be on duty.Its advantage mainly contains:
(1) concentric twin shaft: guarantee in the work progress drilling rod vertical and stable;
(2) double-shaft two-way rotation: the double-shaft two-way rotation drives the two-way rotation simultaneously of two groups of stirring vanes, can guarantee the incorporation of cement paste in pile body, the slurry phenomenon can not occur emitting; Simultaneously can guarantee that the pile body cement-soil stirs, and guarantees pile quality and pile quality;
(3) the concentric two groups of stirring vanes of twin shaft two-way rotation simultaneously: only need two to stir a spray, effect is enhanced about more than once.
Description of drawings
Fig. 1 is two-way mixer schematic diagram: wherein have: bidirectional stirring pile machine fuselage 1; Power drive system 2; Outer drilling rod 3; Interior drilling rod 4; Drill bit 5; Construction plant 6.
Fig. 2 is the structural representation of two-way mixer bit part.Wherein have: outer drilling rod stirring vane 31, interior drilling rod adpting flange 41, drill bit stirring vane 51.
Fig. 3 is the structural representation of two-way mixer power drive system 2: wherein have: wire rope 21, assembly pulley 22, water swivel 23, interior drilling rod motor 24, outer drilling rod motor 241, outer drilling rod power drive system adpting flange 25, interior drilling rod reducer 26, outer drilling rod reducer 261, interior drill rod connector 27, outer drill rod connector 271, interior drilling rod power transmission chain 28, outer drilling rod power transmission chain 281, interior drilling rod power gear 29, outer drilling rod power gear 291, Grouting Pipe 210, interior drilling rod power drive system adpting flange 211, the attaching nut 212, interior drilling rod power transmission gear 215, outer drilling rod power transmission gear 216, connecting bolt 217.
The specific embodiment
Bi-directional cement soil mixer of the present invention is made up of fuselage 1, power drive system 2, outer drilling rod 3, interior drilling rod 4, drill bit 5 mixer, wherein, power drive system 2 is positioned at the top of fuselage 1, interior drilling rod 4 is arranged in outer drilling rod 3, interior drilling rod 4 is connected with interior drilling rod power drive system adpting flange 211 in the power drive system 2, outer drilling rod 3 is connected with outer drilling rod power drive system adpting flange 25, the bottom of drilling rod 4 in drill bit 5 is located at.Power drive system 2 has the drive unit of two groups of symmetries, drives outer drilling rod 3 and interior drilling rod 4 respectively; Interior drilling rod motor 24 is connected with interior drilling rod reducer 26, drill rod connector 27 in the output termination of interior drilling rod reducer 26, the output of interior drill rod connector 27 is fixed with interior drilling rod power gear 29, interior drilling rod power gear 29 is connected with interior drilling rod power transmission gear 215 by interior drilling rod power transmission chain 28, drilling rod power drive system adpting flange 211 in the centre of interior drilling rod power transmission gear 215 connects by tube connector, drilling rod 4 in the following termination of interior drilling rod power drive system adpting flange 211, the upper end of the tube connector in the middle of the interior drilling rod power transmission gear 215 is connected with water swivel 23, and the upper end of water swivel 23 connects Grouting Pipe 210; Outer drilling rod motor 241 is connected with outer drilling rod reducer 261, the outer drill rod connector 271 of the output termination of outer drilling rod reducer 261, the output of outer drill rod connector 271 is fixed with outer drilling rod power gear 291, outer drilling rod power gear 291 is connected with outer drilling rod power transmission gear 216 by outer drilling rod power transmission chain 281, the centre of outer drilling rod power transmission gear 216 connects outer drilling rod power drive system adpting flange 25 by tube connector, the outer drilling rod 3 of the following termination of outer drilling rod power drive system adpting flange 25.The front end both sides of drilling rod 3 are fixed with outer drilling rod stirring vane 31 outside, are fixed with drill bit 5 at the front end of interior drilling rod 4 by drill bit and interior drilling rod adpting flange 41, are fixed with drill bit stirring vane 51 in the front end both sides of drill bit 5.
Assembling process: fuselage and power drive system are installed at first respectively, by parts such as wire rope and cables fuselage and power drive system are installed together then, by adpting flange, bolt, nut the inside and outside drilling rod and the power drive system of the concentric drilling rod of twin shaft are fitted together again, by adpting flange, bolt, nut drill bit and interior drilling rod are installed together equally at last, form complete bidirectional stirring pile machine.
Result through field trial and laboratory test research shows: (1) the slurry phenomenon do not occur emitting with the cement mixing method of this mechanical execution in work progress.And with the cement mixing method of traditional mechanical execution, in work progress, occur comparatively emit the slurry phenomenon.(2) core boring sampling is observed: the stirring of starching incorporation and cement-soil with the cement mixing method integral cement of this mechanical execution is all very even; The stirring non-uniform phenomenon that an integral cement is starched incorporation and cement-soil then appears in the cement mixing method with traditional mechanical execution, and particularly hypomere pile body cement paste incorporation is on the low side.(3) the pile body pile quality is observed in the excavation back: the cement mixing method pile quality with this mechanical execution is fine; And it is general with the cement mixing method pile quality of traditional mechanical execution, relatively poor at natural below ground 1.5m especially to 3.0m scope pile quality; (4) be layer of sand at experiment place nature below ground 1.5m to the 3.0m scope, and unaffected with the cement mixing method of this mechanical execution, so we can handle the sand foundation problem with this machinery fully.
Claims (3)
1, a kind of bi-directional cement soil mixer, it is characterized in that this mixer is made up of fuselage (1), power drive system (2), outer drilling rod (3), interior drilling rod (4), drill bit (5), wherein, power drive system (2) is positioned at the top of fuselage (1), interior drilling rod (4) is arranged in outer drilling rod (3), interior drilling rod (4) is connected with interior drilling rod power drive system adpting flange (211) in the power drive system (2), outer drilling rod (3) is connected with outer drilling rod power drive system adpting flange (25), and drill bit (5) is located at the bottom of interior drilling rod (4).
2, bi-directional cement soil mixer according to claim 1 is characterized in that power drive system (2) has the drive unit of two groups of symmetries, drives outer drilling rod (3) and interior drilling rod (4) respectively; Interior drilling rod motor (24) is connected with interior drilling rod reducer (26), drill rod connector (27) in the output termination of interior drilling rod reducer (26), the output of interior drill rod connector (27) is fixed with interior drilling rod power gear (29), interior drilling rod power gear (29) is connected with interior drilling rod power transmission gear (215) by interior drilling rod power transmission chain (28), drilling rod power drive system adpting flange (211) in the centre of interior drilling rod power transmission gear (215) connects by tube connector, drilling rod (4) in the following termination of interior drilling rod power drive system adpting flange (211), the upper end of the tube connector in the middle of the interior drilling rod power transmission gear (215) is connected with water swivel (23), and the upper end of water swivel (23) connects Grouting Pipe (210); Outer drilling rod motor (241) is connected with outer drilling rod reducer (261), the outer drill rod connector (271) of the output termination of outer drilling rod reducer (261), the output of outer drill rod connector (271) is fixed with outer drilling rod power gear (291), outer drilling rod power gear (291) is connected with outer drilling rod power transmission gear (216) by outer drilling rod power transmission chain (281), the centre of outer drilling rod power transmission gear (216) connects outer drilling rod power drive system adpting flange (25) by tube connector, the outer drilling rod (3) of the following termination of outer drilling rod power drive system adpting flange (25).
3, two-way dual spindle soil-cement stirring according to claim 1, it is characterized in that the front end both sides of drilling rod (3) are fixed with outer drilling rod stirring vane (31) outside, front end at interior drilling rod (4) is fixed with drill bit (5) by drill bit and interior drilling rod adpting flange (41), is fixed with drill bit stirring vane (51) in the front end both sides of drill bit (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410065861 CN1274911C (en) | 2004-12-23 | 2004-12-23 | Bi-directional cement soil mixing pile machine |
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| CN 200410065861 CN1274911C (en) | 2004-12-23 | 2004-12-23 | Bi-directional cement soil mixing pile machine |
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| CN1274911C true CN1274911C (en) | 2006-09-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974903A (en) * | 2010-11-05 | 2011-02-16 | 中建七局第三建筑有限公司 | Bidirectional mixing pile |
Families Citing this family (10)
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| CN100340722C (en) * | 2005-07-13 | 2007-10-03 | 南京大学 | Concrete core cement soil stirring pile machine and its construction technological method |
| CN100363562C (en) * | 2005-12-22 | 2008-01-23 | 上海交通大学 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
| CN101575851B (en) * | 2009-06-08 | 2010-12-08 | 河北工业大学 | Two-way cement mixing pile machine |
| CN101864765B (en) * | 2010-06-30 | 2012-01-04 | 东南大学 | Two-way stirring based SMW construction method and tri-axial stirring equipment |
| CN104372794B (en) * | 2014-11-14 | 2017-03-15 | 宁波高新区科宁机械设备有限公司 | The construction method of double-shaft two-way mixing pile equipment |
| CN105714774B (en) * | 2014-12-04 | 2018-07-03 | 宫能和 | Diameter changeable agitation machine and its bore forming method, drilling rod |
| CN104863499A (en) * | 2015-04-12 | 2015-08-26 | 张永忠 | Six-shaft rectangular drilling machine |
| CN105239567B (en) * | 2015-10-26 | 2017-01-25 | 高佰明 | Stirring pile driver with local vibration and high-pressure injection functions |
| CN105926596B (en) * | 2016-04-26 | 2019-04-26 | 浙江水利水电学院 | It is a kind of for stirring the agitating device and stirring means of ooze |
| CN115142406A (en) * | 2022-07-22 | 2022-10-04 | 南京华宇建设股份有限公司 | Bidirectional cement mixing pile machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974903A (en) * | 2010-11-05 | 2011-02-16 | 中建七局第三建筑有限公司 | Bidirectional mixing pile |
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Owner name: NANJING LUDING MIXING PILE SPECIAL TECHNOLOGY CO., Free format text: FORMER OWNER: DONGNAN UNIV. Effective date: 20090424 |
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Effective date of registration: 20090424 Address after: Baixia District of Nanjing city Ruijin village 32-2 Patentee after: Nanjing Luding Stirring Pile Special Technology Co., Ltd. Address before: No. four arch 2, Nanjing City, Jiangsu Province Patentee before: Southeast University |