CN100363562C - Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth - Google Patents
Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth Download PDFInfo
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- CN100363562C CN100363562C CNB2005101117973A CN200510111797A CN100363562C CN 100363562 C CN100363562 C CN 100363562C CN B2005101117973 A CNB2005101117973 A CN B2005101117973A CN 200510111797 A CN200510111797 A CN 200510111797A CN 100363562 C CN100363562 C CN 100363562C
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- diffusion preventing
- stirring vane
- preventing plate
- stirring
- deep layer
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Abstract
The present invention relates to a deep layer rotary spraying stirring head with diffusion preventing boards and slurry spraying ports in the technical field of a construction machine. The stirring head comprises a core pipe, an upper stirring vane, a lower stirring vane, two medium-pressure slurry spraying ports, soil shifting teeth and two diffusion preventing boards, wherein the upper stirring vane and the lower stirring vane are respectively fixed outside the core pipe, the two medium-pressure slurry spraying ports are arranged on the core pipe, the four soil shifting teeth are respectively welded on the lower stirring vane, and the diffusion preventing boards are welded on the lower stirring vane. The present invention has the advantages of simplicity, reliability, economy, utility and easy fabrication. The stirring head is applied to reinforce soft soil foundations, overcomes the shortage of traditional spraying stirring in the deep layer, and raises the uniformity of a pile shaft. Therefore, the strength of a stirring pile is raised, and the influence on surrounding environments is reduced. An obvious effect is obtained through the verification of an engineering practice.
Description
Technical field
The present invention relates to a kind of device of building machinery technical field, concrete is a kind of deep layer rotating spraying stirring-head with diffusion preventing plate and mouth spray.
Background technology
The method that is used for reinforcing soft ground at present is numerous, and deep-mixed pile and high-pressure rotary jet grouting pile are two kinds of methods that are widely used in reinforced soft soil ground.Deep-mixed pile is stir to inject chemical curing agent (cement or lime powder or slurry) by rotating vane to mix with on-the-spot bury and form, and high-pressure rotary jet grouting pile is to shred on-the-spot bury and make it and the chemical curing agent that injects mixes with High-Pressure Water or slurry flows.The construction machinery volume of deep-mixed pile stake is bigger, construction inconvenience.And the construction equipment volume of high-pressure injection technology is little, is convenient in the intensive place construction of building; But it is, very big to the disturbance of surrounding soil because its spray pressure is big.In recent years, Japan combines mechanical agitation and injection stirring on the basis of these two kinds traditional deep layer chemistry foundation treatment technologies, forms a kind of new technology, i.e. deep layer rotating spraying mixture pile worker method.
Deep layer rotating spraying mixture pile is after drilling rod is drilled into the soil depth of designing requirement, push cement grout to nozzle special on the drill bit from drill pipe bore with mudjack, in company with the rig rotating vane to around the soil body spray, drilling rod promotes with certain speed simultaneously, blade on the drill bit is with the constantly cutting from bottom to top of the soil body in the certain limit around it, and the jet cement slurries cut the peripheral soil body of peripheral soil stabilization in soil, stir into the cement-soil mixture and reach consolidated subsoil, improve the effect of bearing capacity of foundation soil.
Through existing technical literature is retrieved, Yan Yi aims at " Shanxi traffic magazine ", 2004 (2), " the simple analysis rotating spraying mixture pile is to the processing of deep layer unfavorable geology " delivered on P68～69, this article has briefly introduced the deep layer rotating spraying mixture pile construction machinery, it is described as deep layer rotating spraying mixture pile pierces projected depth, with mudjack cement is pressed into the soil body then with the spiral drilling machine of changing a social system.This deep layer rotating spraying mixture pile construction machinery can solve to use separately and whitewash difficulty in the deep mixer tool and use the uneven shortcoming of churning method pile body separately, but used deep layer rotating spraying mixture pile construction, because expulsion pressure is bigger, and the acting in conjunction of stirring both, easily to ground and the bigger disturbance of surrounding buildings deposits yields, cause surface subsidence, thereby influence consolidation effect.And slurries can't be controlled in the design reinforcement radius fully, thereby have influence on the slurry content of agitation pile, can not guarantee the requirement of strength of stake fully.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the invention provides a kind of deep layer rotating spraying stirring-head with diffusion preventing plate and mouth spray, promptly add diffusion preventing plate and be provided with in two and press mouth spray, make it can effectively solve the problem of many surrounding soils disturbance in the deep layer rotating spraying whipping process at existing deep layer rotating spraying mixture pile stirring-head.And the construction machinery volume is little, is convenient to municipal construction, can effectively improve efficiency of construction.
The present invention realizes by the following technical solutions, comprising: press mouth spray in the core pipe, top stirring vane, bottom stirring vane, two, dial native tooth, two diffusion preventing plates.Top stirring vane and bottom stirring vane are separately fixed at the outside of core pipe, press in two mouth spray to be arranged on the core pipe, weld four respectively and dial native teeth on the stirring vane of bottom, and diffusion preventing plate is welded on the stirring vane of bottom.In press mouth spray to be arranged on the core pipe, press in two mouth spray to be positioned at the both sides of bottom stirring vane and distribute the same with the bottom stirring vane.
Diffusion preventing plate is connected on the end of bottom stirring vane, and pressing the expulsion pressure of mouth spray in two is 4～10MPa, and when pressing the mouth spray whitewashing from two, two diffusion preventing plates can block the further outside diffusion of slurries just.Thereby guaranteed the content of slurries in the reinforcing scope, and reduced disturbance the outer soil body of reinforced radius.On two stirring vanes of lower floor, add four respectively and dial native tooth, can improve the effect of loosening the soil.
The advantage that the present invention has: 1, be added with diffusion preventing plate, can effectively stop outwards further spraying of slurries, guaranteed the slurry content in the design reinforcement radius, thereby guaranteed the requirement of strength of stake.2, diffusion preventing plate stops slurries outwards to spray, and can effectively reduce to stir and sprays the disturbance of acting in conjunction to the soil body beyond the design reinforcement scope, promptly reduces the influence to surrounding environment.3, be provided with in two and press mouth spray, can reduce spray pressure and reach the whitewashing amount so on the one hand, also can improve the uniformity that the whitewashing slurries mix with the soil body on the other hand, raising agitation pile pile body uniformity.
The present invention is simple and reliable, and is economical and practical, easy to process.Be applied to reinforcing soft ground, overcome the weak point that traditional deep layer rotating spraying stirs, can improve the uniformity of pile body, thereby improve the intensity of agitation pile, reduce influence surrounding environment.Through the engineering practice checking, obtained significant effect.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 structure vertical view of the present invention
The specific embodiment
Shown in Fig. 1-2, the present invention includes: core pipe 1, top stirring vane 2, bottom stirring vane 3, middle pressure mouth spray 4, group native tooth 5, diffusion preventing plate 6.
Top stirring vane 2 and bottom stirring vane 3 are separately fixed at the outside of core pipe 1, press in two mouth spray 4 to be arranged on the core pipe 1, weld four respectively and dial native teeth 5 on bottom stirring vane 3, and diffusion preventing plate 6 is welded on the bottom stirring vane 3.
In press mouth spray 4 to be arranged on the core pipe 1, press in two mouth spray 4 to be positioned at the both sides of bottom stirring vane 3, and with the 3 the same distributions of bottom stirring vane.
The expulsion pressure of middle pressure mouth spray 4 approximately is 4～10MPa.
When installation stirring-head of the present invention is constructed on the deep spray Mixing Machine, the stirring-head cutting soil that turns clockwise under the traction of motor sinks, stirring vane 2,3 on the stirring-head is all along with the stirring-head rotation, the soil body is stirred in bottom stirring vane 3 rotation under the assistance of dialling native tooth 5, opening pump for mortar transmission simultaneously begins to carry slurries to make it therefrom press mouth spray 4 ejections, the whitewashing of sinking limit, limit.After arriving projected depth, stirring-head begins to rise under the traction of motor, at this moment is rotated counterclockwise during stirring-head.In the process that rises, can stop whitewashing; Also can make slurries still therefrom press mouth spray 4 ejections, the whitewashing of limit rising edge.Stirring vane 2,3 continues to follow the drill bit rotation and stirs the slurries and the soil body.Rise to ground until stirring-head, the construction of whole deep spray agitation pile is finished.
Sink and uphill process adopts respectively and turns clockwise and be rotated counterclockwise, can avoid constructing in the obstruction ground, when drill bit runs into obstruction, be difficult to the problem of creeping into or withdrawing from.
Claims (4)
1. deep layer rotating spraying stirring-head with diffusion preventing plate and mouth spray, comprise: core pipe (1), top stirring vane (2), bottom stirring vane (3), middle pressure mouth spray (4), group native tooth (5), diffusion preventing plate (6), it is characterized in that, top stirring vane (2) and bottom stirring vane (3) are separately fixed at the outside of core pipe (1), press mouth spray (4) to be arranged on the core pipe (1) in two, weld four respectively and dial native tooth (5) on bottom stirring vane (3), diffusion preventing plate (6) is welded on the bottom stirring vane (3).
2. the deep layer rotating spraying stirring-head of band diffusion preventing plate according to claim 1 and mouth spray is characterized in that, the expulsion pressure of middle pressure mouth spray (4) is 4～10MPa.
3. the deep layer rotating spraying stirring-head of band diffusion preventing plate according to claim 1 and mouth spray, it is characterized in that, diffusion preventing plate (6) is welded on the end of bottom stirring vane (3), and whitewashing the time therefrom presses 4～10MPa slurries of mouth spray (4) ejection can be mapped on the diffusion preventing plate (6).
4. according to the deep layer rotating spraying stirring-head of claim 1 or 3 described band diffusion preventing plates and mouth spray, it is characterized in that diffusion preventing plate (6) thickness is 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101117973A CN100363562C (en) | 2005-12-22 | 2005-12-22 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101117973A CN100363562C (en) | 2005-12-22 | 2005-12-22 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1793522A CN1793522A (en) | 2006-06-28 |
| CN100363562C true CN100363562C (en) | 2008-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101117973A Expired - Fee Related CN100363562C (en) | 2005-12-22 | 2005-12-22 | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth |
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| Country | Link |
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| CN (1) | CN100363562C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761348B (en) * | 2008-10-10 | 2011-12-07 | 上海强劲地基工程股份有限公司 | Multi-directional anchor pile one-step formed drilling tool |
| CN102535449B (en) * | 2011-12-29 | 2013-12-25 | 东南大学 | Construction method of stirring pile and solidifying agent device thereof |
| CN107338790B (en) * | 2017-07-24 | 2020-01-21 | 广东华隧建设集团股份有限公司 | Construction method of rotary spraying stirring composite pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141168A (en) * | 1991-05-20 | 1993-06-08 | Nippon Steel Corp | Auger for soil cement composite pile |
| CN2215589Y (en) * | 1994-05-24 | 1995-12-20 | 沈学智 | Diameter changeable agitation drill |
| US5645376A (en) * | 1993-09-01 | 1997-07-08 | Taki; Osamu | Soil solidification apparatus with a shear blade of adjustable length and rotation speed for creating a ribbed soil-cement pile |
| CN2680731Y (en) * | 2004-01-05 | 2005-02-23 | 陈南杰 | Guniting type deep layer stirring pile head |
| CN1632232A (en) * | 2004-12-23 | 2005-06-29 | 东南大学 | Bi-directional cement soil mixing pile machine |
-
2005
- 2005-12-22 CN CNB2005101117973A patent/CN100363562C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141168A (en) * | 1991-05-20 | 1993-06-08 | Nippon Steel Corp | Auger for soil cement composite pile |
| US5645376A (en) * | 1993-09-01 | 1997-07-08 | Taki; Osamu | Soil solidification apparatus with a shear blade of adjustable length and rotation speed for creating a ribbed soil-cement pile |
| CN2215589Y (en) * | 1994-05-24 | 1995-12-20 | 沈学智 | Diameter changeable agitation drill |
| CN2680731Y (en) * | 2004-01-05 | 2005-02-23 | 陈南杰 | Guniting type deep layer stirring pile head |
| CN1632232A (en) * | 2004-12-23 | 2005-06-29 | 东南大学 | Bi-directional cement soil mixing pile machine |
Non-Patent Citations (1)
| Title |
|---|
| 浅析旋喷搅拌桩对深层不良地址的处理. 阎毅志.山西交通科技，第2期. 2004 * |
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| Publication number | Publication date |
|---|---|
| CN1793522A (en) | 2006-06-28 |
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Granted publication date: 20080123 Termination date: 20111222 |