CN102561331A - Drilling machine for pray stake construction and method for constructing by means of drilling machine - Google Patents
Drilling machine for pray stake construction and method for constructing by means of drilling machine Download PDFInfo
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- CN102561331A CN102561331A CN2012100139316A CN201210013931A CN102561331A CN 102561331 A CN102561331 A CN 102561331A CN 2012100139316 A CN2012100139316 A CN 2012100139316A CN 201210013931 A CN201210013931 A CN 201210013931A CN 102561331 A CN102561331 A CN 102561331A
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Abstract
The invention discloses a drilling machine for spray stake construction and a method for constructing by means of the drilling machine. According to the drilling machine for the spray stake construction, a spray stake construction process is combined with the functions of the drilling machine, the stake position of a spray stake can be drilled by means of a drill pipe and a drill bit; and the spray stake is constructed by means of a grouting tube and a pneumatic tube which are arranged in the drill pipe. According to the drilling machine used for the spray stake construction, the processes of drilling and grouting can be tightly connected and used for performing the continuous spray stake construction in the whole construction process of the spray stake. Due to the application of the drilling machine for the spray stake construction, the spray stake construction process can be simplified, and the construction cost is saved, so that the drilling machine for the spray stake construction can be more conveniently used for the spray stake construction of hard geologic formations. The drilling machine and the method are used in the field of conventional industry modification of high and new technologies.
Description
Technical field
The present invention relates to a kind of architectural furniture, particularly relate to a kind of rig that is used for jet grouting pile construction.
Background technology
Rotary churning pile rises the jet grounting in nineteen seventies, for the construction of rotary churning pile be utilize rig with rotary jet grouting pipe and shower nozzle bore place at the bottom of, make flow obtain huge energy through high-voltage generator the slurries that prepare in advance after; Eject from the nozzle high speed of slip casting tube edge; Form the flow that one energy height is concentrated, directly destroy the soil body, and in the process of spraying; Drilling rod promotes while rotating; The slurries and the soil body are fully mixed, in soil, form the column induration of certain diameter, thereby make ground reach reinforcing.Generally be divided into two workflows in the construction, promptly spray after the subdrilling, bore down again and spray, promote then and stir, guarantee every meter stake puddled soil ratio and quality.
When carrying out jet grouting pile construction now, in the time of more maybe need passing than hard formation like the stratum, all need to adopt earlier engineering driller to hole to projected depth; Carry out the churning operation again; And all can't carry out continuous churning operation between adjacent boring, its working procedure relative complex, the duration is longer; It is also higher that rig draws the cost in hole, seriously increased the construction cost of jet grouting pile construction.
Summary of the invention
For addressing the above problem, the present invention provides harder construction site, a kind of stratum more easily to carry out the rig of jet grouting pile construction.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of jet grouting pile construction rig; Comprise drilling rod and be fixedly installed in the drill bit of drilling rod termination; Be provided with the pneumatic tube that is used to transmit the Grouting Pipe of slurries and is used for the gas transmission in the drilling rod; Grouting Pipe and pneumatic tube meet in the drill bit, and drill bit is provided with the grout outlet that communicates with the outlet of Grouting Pipe and pneumatic tube.
Further as the improvement of technical scheme of the present invention, Grouting Pipe and pneumatic tube are installed with the equal coaxial line of drilling rod in drilling rod, and the bore of pneumatic tube is greater than the external diameter of pipe of Grouting Pipe.
Further as the improvement of technical scheme of the present invention, the top loop of drilling rod is provided with around drilling rod and is used for the connector that drilling rod is installed, and connector is provided with the air intake that communicates with pneumatic tube.
Further as the improvement of technical scheme of the present invention, the top of connector also is provided with the grouting port that communicates with Grouting Pipe.
Further as the improvement of technical scheme of the present invention, the external diameter of Grouting Pipe is 25mm, and the pipe thickness of Grouting Pipe is not less than 5mm.
As the improvement of technical scheme of the present invention, be thread connection between drilling rod and drill bit further, grout outlet is arranged on the drill bit orientation perpendicular to drilling rod.
The above-mentioned rig of a kind of usefulness carries out the method for jet grouting pile construction, may further comprise the steps:
1), confirms the central point of required rotary churning pile of constructing;
2), make the central point of rotary churning pile of the required construction of drill bit of rig, and the adjustment drilling rod is consistent with the angle of inclination of the rotary churning pile of required construction;
3), open grouting pump, carry out water filling through grouting port and Grouting Pipe, simultaneously through the pneumatic tube gas injection, after grouting pump ran well, changing water filling was slip casting, and at the bottom of stake, stopped 20 seconds;
4), carry out slip casting, and rotary drill rod limit, limit promotes the design elevation of drill bit to rotary churning pile.
Further as the improvement of technical scheme of the present invention, in the step 4), the rotary speed of drilling rod is that per minute 12～15 changes, and the upwards hoisting velocity of drilling rod is per minute 15～18cm.
Further as the improvement of technical scheme of the present invention, step 3) and 4) when carrying out water filling and slip casting, Grouting Pipe and pneumatic tube are water filling slip casting and the gas injection that does not stop continuously in.
Beneficial effect of the present invention: this jet grouting pile construction rig combines jet grouting pile construction technology with the rig function; Can carry out the boring of rotary churning pile stake position through drilling rod and drill bit; Jet grouting pile construction is carried out through Grouting Pipe and the pneumatic tube that is provided with in the drilling rod in the back, and the rig that this jet grouting pile construction is used can couple together boring and grouting with plunger in the whole construction course of rotary churning pile closely; Be used to carry out continuous jet grouting pile construction; The application of this jet grouting pile construction rig can be simplified jet grouting pile construction technology, saves construction cost, thereby is used for the jet grouting pile construction of hard geological stratification more easily.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is a rig overall structure sketch map in the embodiment of the invention;
Fig. 2 is a drill bit structure sketch map in the embodiment of the invention.
The specific embodiment
With reference to Fig. 1, Fig. 2; The present invention is a kind of jet grouting pile construction rig; Comprise drilling rod 1 and be fixedly installed in the drill bit 2 of drilling rod 1 termination; Be provided with the pneumatic tube 4 that is used to transmit the Grouting Pipe 3 of slurries and is used for the gas transmission in the drilling rod 1, Grouting Pipe 3 meets in the drill bit 2 with pneumatic tube 4, and drill bit 2 is provided with the grout outlet 5 that communicates with the outlet of Grouting Pipe 3 and pneumatic tube 4.
This jet grouting pile construction rig combines jet grouting pile construction technology with the rig function; Can carry out the boring of rotary churning pile stake position through drilling rod 1 and drill bit 2; The back is carried out jet grouting pile construction through the Grouting Pipe 3 that is provided with in the drilling rod 1 with pneumatic tube 4, and the rig that this jet grouting pile construction is used can couple together boring and grouting with plunger in the whole construction course of rotary churning pile closely; Be used to carry out continuous jet grouting pile construction; The application of this jet grouting pile construction rig can be simplified jet grouting pile construction technology, saves construction cost, thereby is used for the jet grouting pile construction of hard geological stratification more easily.
As the preferred embodiment of the present invention, Grouting Pipe 3 is installed with drilling rod 1 equal coaxial line in drilling rod 1 with pneumatic tube 4, and the bore of pneumatic tube 4 is greater than the external diameter of pipe of Grouting Pipe 3.
As the preferred embodiment of the present invention, the external diameter of Grouting Pipe 3 is 25mm, and the pipe thickness of Grouting Pipe 3 is not less than 5mm.
Grouting Pipe 3 in the drilling rod 1 and pneumatic tube 4 are for being coaxially set, and pneumatic tube 4 is installed on the periphery of Grouting Pipe 3, and gases at high pressure pass from the outer wall of Grouting Pipe 3, and join in drill bit 2 places with the slurries in the Grouting Pipe 3.
In order to guarantee the working strength of Grouting Pipe 3, the outer wall thickness of Grouting Pipe 3 is defined as is not less than 5mm.
As the preferred embodiment of the present invention, the top loop of drilling rod 1 is provided with around drilling rod 1 and is used for the connector 6 that drilling rod 1 is installed, and connector 6 is provided with the air intake 61 that communicates with pneumatic tube 4.
As the preferred embodiment of the present invention, the top of connector 6 also is provided with the grouting port 62 that communicates with Grouting Pipe 3.
Gases at high pressure get into pneumatic tube 4 from the air intake on the connector 6, required grouting port 62 entering Grouting Pipe 3 of carrying out the mud of jet grouting pile construction from connector 6 tops.
As the preferred embodiment of the present invention, 2 on drilling rod 1 and drill bit are thread connection, and grout outlet 5 is arranged on the drill bit 2 orientation perpendicular to drilling rod 1.
The above-mentioned rig of a kind of usefulness carries out the method for jet grouting pile construction, may further comprise the steps:
1), confirms the central point of required rotary churning pile of constructing;
2), make the drill bit 2 of rig aim at the central point of the rotary churning pile of required construction, and adjustment drilling rod 1 is consistent with the angle of inclination of the rotary churning pile of required construction;
3), open grouting pump, carry out water filling through grouting port 62 and Grouting Pipe 3, simultaneously through pneumatic tube 4 gas injections, after grouting pump ran well, changing water filling was slip casting, and at the bottom of stake, stopped 20 seconds;
4), carry out slip casting, and rotary drill rod 1 limit in limit promotes the design elevation of drill bit 2 to rotary churning pile.
As the preferred embodiment of the present invention, in the step 4), the rotary speed of drilling rod 1 is that per minute 12～15 changes, and the upwards hoisting velocity of drilling rod 1 is per minute 15～18cm.
As the preferred embodiment of the present invention, step 3) and 4) when carrying out water filling and slip casting, Grouting Pipe 3 is water filling slip casting and the gas injection that does not stop continuously with pneumatic tube 4 in.
In the work progress of rotary churning pile, the stage of carrying out slip casting through Grouting Pipe 3 does not allow to take place disconnected slurry phenomenon in Grouting Pipe 3, and Grouting Pipe 3 can not be stopped up.The slip casting of full stake palpus is even, and sandwich of layers must not take place.In the construction as the line clogging accident takes place, termination of pumping is immediately handled, should be after the pending end, and then mud jacking again immediately drilling rod sinking 1.0m, recover to promote after waiting 10～20 seconds, in case broken pile.If shut down to surpass three hours for some reason, for preventing the slurries plugging of condensing, the suitable Grouting Pipe 3 of dismantling is earlier cleaned properly.
Certainly; The invention is not limited to above-mentioned embodiment; Those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (9)
1. jet grouting pile construction rig; It is characterized in that: comprise drilling rod (1) and be fixedly installed in the drill bit (2) of drilling rod (1) termination; Be provided with the Grouting Pipe (3) that is used to transmit slurries in the said drilling rod (1) and be used for the pneumatic tube (4) that gas transmits; Said Grouting Pipe (3) and pneumatic tube (4) meet in the drill bit (2), and said drill bit (2) is provided with the grout outlet (5) that communicates with the outlet of Grouting Pipe (3) and pneumatic tube (4).
2. jet grouting pile construction rig according to claim 1 is characterized in that: said Grouting Pipe (3) and pneumatic tube (4) are installed with the equal coaxial line of drilling rod (1) in drilling rod (1), and the bore of said pneumatic tube (4) is greater than the external diameter of pipe of Grouting Pipe (3).
3. jet grouting pile construction rig according to claim 1 and 2; It is characterized in that: the top loop of said drilling rod (1) is provided with around drilling rod (1) and is used for the connector (6) that drilling rod (1) is installed, and said connector (6) is provided with the air intake (61) that communicates with said pneumatic tube (4).
4. jet grouting pile construction rig according to claim 3 is characterized in that: the top of said connector (6) also is provided with the grouting port (62) that communicates with Grouting Pipe (3).
5. jet grouting pile construction rig according to claim 1 is characterized in that: the external diameter of said Grouting Pipe (3) is 25mm, and the pipe thickness of said Grouting Pipe (3) is not less than 5mm.
6. jet grouting pile construction rig according to claim 1 is characterized in that: be thread connection between said drilling rod (1) and drill bit (2), said grout outlet (5) is arranged at drill bit (2) and goes up the orientation perpendicular to drilling rod (1).
7. one kind is carried out the method for jet grouting pile construction with the described rig of claim 1, it is characterized in that, may further comprise the steps:
1), confirms the central point of required rotary churning pile of constructing;
2), make the drill bit (2) of rig aim at the central point of the rotary churning pile of required construction, and adjustment drilling rod (1) is consistent with the angle of inclination of the rotary churning pile of required construction;
3), open grouting pump, carry out water filling through grouting port (62) and Grouting Pipe (3), simultaneously through pneumatic tube (4) gas injection, after grouting pump ran well, changing water filling was slip casting, and at the bottom of stake, stopped 20 seconds;
4), carry out slip casting, and limit rotary drill rod (1) limit promotes the design elevation of drill bit (2) to rotary churning pile.
8. job practices according to claim 7 is characterized in that: in the said step 4), the rotary speed of said drilling rod (1) is that per minute 12～15 changes, and the upwards hoisting velocity of said drilling rod (1) is per minute 15～18cm.
9. jet grouting pile construction rig according to claim 7 is characterized in that: when carrying out water filling and slip casting, said Grouting Pipe (3) and pneumatic tube (4) are water filling slip casting and the gas injection that does not stop continuously said step 3) and 4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100139316A CN102561331A (en) | 2012-01-17 | 2012-01-17 | Drilling machine for pray stake construction and method for constructing by means of drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100139316A CN102561331A (en) | 2012-01-17 | 2012-01-17 | Drilling machine for pray stake construction and method for constructing by means of drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102561331A true CN102561331A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100139316A Pending CN102561331A (en) | 2012-01-17 | 2012-01-17 | Drilling machine for pray stake construction and method for constructing by means of drilling machine |
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| CN (1) | CN102561331A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224231A (en) * | 2016-08-31 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | Revolution filling adaptor for rotary motive power pump |
| CN106351447A (en) * | 2016-08-31 | 2017-01-25 | 浙江南湖建设有限公司 | Grouting pipe assembly and construction method carried out with the same |
| CN106836208A (en) * | 2017-02-16 | 2017-06-13 | 昆山市交通工程有限公司 | One kind spray stake machine and sub-surface spray pile construction method |
| CN108505952A (en) * | 2018-03-23 | 2018-09-07 | 宁波市轨道交通集团有限公司 | Brill for emergency repair drilling machine notes integral type drilling rod |
| CN109208590A (en) * | 2018-09-28 | 2019-01-15 | 浙江易通基础工程有限公司 | Jet grouting pile driving machine and the method for utilizing the ram machine construction high-pressure rotary jet grouting pile |
| CN111550195A (en) * | 2020-04-16 | 2020-08-18 | 浙江大通建设科技有限公司 | Drill rod device free of pilot hole continuous same-direction jet grouting and high-pressure jet grouting pile construction method |
| CN111549806A (en) * | 2020-05-11 | 2020-08-18 | 重庆千牛建设工程有限公司 | Cofferdam construction method for flowing water system sandy gravel stratum |
| CN111550182A (en) * | 2020-04-16 | 2020-08-18 | 浙江省建筑设计研究院 | Multi-angle cement-soil pile construction equipment in tunnel and tunnel reinforcing construction method |
| CN114250769A (en) * | 2021-11-05 | 2022-03-29 | 陕西铁道工程勘察有限公司 | Pile forming process for large-head compaction pile |
| CN114808930A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Device for quickly preventing slurry leakage of bored pile on riprap dike in sea area and construction method thereof |
| CN114808931A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Leakage-stopping rod for leakage stopping of slurry of cast-in-situ bored pile on rubble dike in complex sea area |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101005A (en) * | 1985-04-01 | 1986-05-10 | 冶金工业部建筑研究总院 | High-pressure rotating dry spraying method and two-tube rotation dry sprayer |
| CN2561820Y (en) * | 2002-08-09 | 2003-07-23 | 青岛市勘察测绘研究院 | Steel bar reinforced section-varied composite pile operation apparatus |
| JP2004239014A (en) * | 2003-02-10 | 2004-08-26 | Nippon Koatsu Concrete Kk | Immersion method for pile and its device |
| CN1667202A (en) * | 2005-03-04 | 2005-09-14 | 赵延龙 | Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| CN101235636A (en) * | 2008-02-28 | 2008-08-06 | 上海交通大学 | Device for fast concreting soft soil ground foundation by high-pressure injecting double-liquor slurry |
| CN201212147Y (en) * | 2008-06-23 | 2009-03-25 | 何世鸣 | Combination drill tool for long screwy jet grouting and stirring pile |
| CN101984191A (en) * | 2010-11-05 | 2011-03-09 | 湖南长大建设集团股份有限公司 | High pressure jet grouting pile driving machine |
| CN201826303U (en) * | 2010-07-06 | 2011-05-11 | 袁小忠 | Long-spiral high/low-pressure multi-pipe self-drilling type mixing jet grouting pile forming device |
-
2012
- 2012-01-17 CN CN2012100139316A patent/CN102561331A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101005A (en) * | 1985-04-01 | 1986-05-10 | 冶金工业部建筑研究总院 | High-pressure rotating dry spraying method and two-tube rotation dry sprayer |
| CN2561820Y (en) * | 2002-08-09 | 2003-07-23 | 青岛市勘察测绘研究院 | Steel bar reinforced section-varied composite pile operation apparatus |
| JP2004239014A (en) * | 2003-02-10 | 2004-08-26 | Nippon Koatsu Concrete Kk | Immersion method for pile and its device |
| CN1667202A (en) * | 2005-03-04 | 2005-09-14 | 赵延龙 | Seepage control consolidation method and apparatus for reciprocating high-pressure injection grouting foundation |
| CN101235636A (en) * | 2008-02-28 | 2008-08-06 | 上海交通大学 | Device for fast concreting soft soil ground foundation by high-pressure injecting double-liquor slurry |
| CN201212147Y (en) * | 2008-06-23 | 2009-03-25 | 何世鸣 | Combination drill tool for long screwy jet grouting and stirring pile |
| CN201826303U (en) * | 2010-07-06 | 2011-05-11 | 袁小忠 | Long-spiral high/low-pressure multi-pipe self-drilling type mixing jet grouting pile forming device |
| CN101984191A (en) * | 2010-11-05 | 2011-03-09 | 湖南长大建设集团股份有限公司 | High pressure jet grouting pile driving machine |
Non-Patent Citations (2)
| Title |
|---|
| 刘利伟: "多功能旋喷钻机及配套钻具", 《装备制造》 * |
| 郑团旗等: "高压喷射注浆施工方法", 《河南科技》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106224231A (en) * | 2016-08-31 | 2016-12-14 | 约翰斯顿流体科技（无锡）有限公司 | Revolution filling adaptor for rotary motive power pump |
| CN106351447A (en) * | 2016-08-31 | 2017-01-25 | 浙江南湖建设有限公司 | Grouting pipe assembly and construction method carried out with the same |
| CN106836208A (en) * | 2017-02-16 | 2017-06-13 | 昆山市交通工程有限公司 | One kind spray stake machine and sub-surface spray pile construction method |
| CN106836208B (en) * | 2017-02-16 | 2020-04-03 | 昆山市交通工程集团有限公司 | Pile spraying machine and pavement base pile spraying construction method |
| CN108505952A (en) * | 2018-03-23 | 2018-09-07 | 宁波市轨道交通集团有限公司 | Brill for emergency repair drilling machine notes integral type drilling rod |
| CN109208590A (en) * | 2018-09-28 | 2019-01-15 | 浙江易通基础工程有限公司 | Jet grouting pile driving machine and the method for utilizing the ram machine construction high-pressure rotary jet grouting pile |
| CN111550195A (en) * | 2020-04-16 | 2020-08-18 | 浙江大通建设科技有限公司 | Drill rod device free of pilot hole continuous same-direction jet grouting and high-pressure jet grouting pile construction method |
| CN111550182A (en) * | 2020-04-16 | 2020-08-18 | 浙江省建筑设计研究院 | Multi-angle cement-soil pile construction equipment in tunnel and tunnel reinforcing construction method |
| CN111550195B (en) * | 2020-04-16 | 2021-08-10 | 浙江大通建设科技有限公司 | Drill rod device free of pilot hole continuous same-direction jet grouting and high-pressure jet grouting pile construction method |
| CN111550182B (en) * | 2020-04-16 | 2021-08-10 | 浙江省建筑设计研究院 | Multi-angle cement-soil pile construction equipment in tunnel and tunnel reinforcing construction method |
| CN111549806A (en) * | 2020-05-11 | 2020-08-18 | 重庆千牛建设工程有限公司 | Cofferdam construction method for flowing water system sandy gravel stratum |
| CN111549806B (en) * | 2020-05-11 | 2022-03-04 | 重庆千牛建设工程有限公司 | Cofferdam construction method for flowing water system sandy gravel stratum |
| CN114250769A (en) * | 2021-11-05 | 2022-03-29 | 陕西铁道工程勘察有限公司 | Pile forming process for large-head compaction pile |
| CN114808930A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Device for quickly preventing slurry leakage of bored pile on riprap dike in sea area and construction method thereof |
| CN114808931A (en) * | 2022-03-21 | 2022-07-29 | 中交二航局第一工程有限公司 | Leakage-stopping rod for leakage stopping of slurry of cast-in-situ bored pile on rubble dike in complex sea area |
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Application publication date: 20120711 |