CN104018493B - Biaxial Compressive gas rotary ejection type mixing pile machine and utilize the method for this machine pile - Google Patents
Biaxial Compressive gas rotary ejection type mixing pile machine and utilize the method for this machine pile Download PDFInfo
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- CN104018493B CN104018493B CN201410281049.9A CN201410281049A CN104018493B CN 104018493 B CN104018493 B CN 104018493B CN 201410281049 A CN201410281049 A CN 201410281049A CN 104018493 B CN104018493 B CN 104018493B
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Abstract
The invention discloses a kind of Biaxial Compressive gas rotary ejection type mixing pile machine and utilize the method for this machine pile, this machine comprises pile frame, unit head (1), shaft (2), air nozzle (9), air compressor machine (10), gas transmission main (11) and gas transmission are in charge of (12), stirring-head (7) is fixed with whitewashing mouth (8) and air nozzle (9), air nozzle (9) is linked in whitewashing mouth (8) outward, air nozzle (9) is in charge of being communicated with of (12) with gas transmission, gas transmission is in charge of (12) is communicated with gas transmission main (11) and air compressor machine (10), the committed step of this construction method is bore under shaft (2) or upwards carry and whitewashing under the sweeping along of pressure-air while stirring the soil body.This machine and utilize the method for this machine pile can make the cement-soil dense uniform of pile, pile quality good, the pile degree of depth can be strengthened and also can pile and efficiency of construction, reduction of erection time, saving mechanical stage student contributions pooled to pay for class activities and labour cost can be improved in the soil body that hardness is larger.
Description
Technical field
The present invention relates to the Construction Techniques for Cement Mixing Pile in field of civil engineering, is specifically a kind of Biaxial Compressive gas rotary ejection type mixing pile machine and the method utilizing this machine pile.
Background technology
Along with the fast development of national economic development, the extensive rise of especially building construction and urban construction, the construction technology of cement mixing pile is also in continuous development and application.Cement mixing pile is applied to ground stabilization more or in foundation pit supporting system, makes supporting and protection structure and water-stop curtain.
Traditional cement mixing pile machine comprises pile frame, unit head, two parallel shafts (i.e. two shaft), a defeated slurry house steward, two defeated slurries are in charge of, pump for mortar transmission and slurry agitation machine, unit head is arranged on pile frame, shaft is hollow tubular and two shafts are arranged on unit head, every root shaft lower end is fixed with the stirring-head of a band stirring vane through flange, each stirring-head is fixed with a whitewashing mouth, each whitewashing mouth is in charge of through defeated slurry, defeated slurry house steward is communicated with pump for mortar transmission, pump for mortar transmission is communicated with slurry agitation machine, the defeated slurry of every root be in charge of be arranged on a shaft tube chamber in.
The formation of pile of the cement mixing pile of prior art is: pile-forming machine perching makes the stirring-head of shaft be positioned on design stake position; Shaft is driven to rotate and pierce in the soil body downwards, until design elevation at the bottom of getting under the stirring-head of shaft; Upwards promote shaft, make shaft rotate rise gunite, i.e. rotary jet grouting, until the stirring-head of shaft rises to design of pile top absolute altitude; Second time creeps into shaft downwards, until design elevation at the bottom of getting under shaft; Second time upwards promotes shaft and rotary jet grouting, until the stirring-head of shaft arrives design of pile top absolute altitude.
Traditional stake machine and utilize the method for conventional piles machine pile to there is a very large defect, i.e. cement grout poor fluidity in the soil body, be difficult to even diffusion, make cement paste bulk deposition near whitewashing mouth, and position slurries amount wretched insufficiency slightly far away, and whitewashing mouth is also easily blocked by hack, naturally the soil body is caused to lack cement paste, therefore after stirring, the cement-soil of pile body is not fine and close, uneven, is seriously lowered into quality of pile; And, along with soil depth increases, soil body hardness becomes large, and slurries are difficult to even diffusion, therefore in the soil body that the degree of depth is larger, be difficult to pile, namely the pile degree of depth is limited, is generally no more than 15 meters, or in the soil body that the original hardness such as sand, clay is just larger, slurries are more difficult to even diffusion, and nature cannot pile; Same due to slurries poor fluidity in the soil body, like this, in the process of boring under shaft, the slurries sprayed cannot spread, can only take first lower bore the soil body bored pine then on the way of whitewashing when carrying shaft, like this, two heavy two are needed to pull out ability pile, efficiency of construction is low, long in time limit, mechanical stage student contributions pooled to pay for class activities and labour cost many, deficiency in economic performance.
Summary of the invention
The technical problem that the present invention will solve is, provide a kind of can make the cement-soil dense uniform of pile, pile quality good, the pile degree of depth can be strengthened and also can pile and the Biaxial Compressive gas rotary ejection type mixing pile machine of efficiency of construction, reduction of erection time, saving mechanical stage student contributions pooled to pay for class activities and labour cost can be improved in the soil body that hardness is larger.
A technical solution of the present invention is, a kind of Biaxial Compressive gas rotary ejection type mixing pile machine is provided, it comprises pile frame, unit head, two parallel shafts, a defeated slurry house steward, two defeated slurries are in charge of, pump for mortar transmission and slurry agitation machine, unit head is arranged on pile frame, shaft is hollow tubular and two shafts are installed on unit head, every root shaft lower end is fixed with the stirring-head of a band stirring vane through flange, each stirring-head is fixed with a whitewashing mouth, each whitewashing mouth is in charge of through defeated slurry, defeated slurry house steward is communicated with pump for mortar transmission, pump for mortar transmission is communicated with slurry agitation machine, the defeated slurry of every root be in charge of be arranged on a shaft tube chamber in, it also comprises two air nozzles, an air compressor machine, a gas transmission main and two gas transmissions are in charge of, each air nozzle is fixed on a stirring-head, each air nozzle is linked in outside a whitewashing mouth, each air nozzle is communicated with the tube chamber lower end of a shaft, the lower end that tube chamber upper end and a gas transmission of this shaft are in charge of is communicated with, the upper end that this gas transmission is in charge of is communicated with one end of gas transmission main, the other end of gas transmission main is communicated with air compressor machine.
Another technical problem that the present invention will solve is, provide a kind of can make the cement-soil dense uniform of pile, pile quality good, the pile degree of depth can be strengthened and also can pile and the method utilizing Biaxial Compressive gas rotary ejection type mixing pile machine pile of efficiency of construction, reduction of erection time, saving mechanical stage student contributions pooled to pay for class activities and labour cost can be improved in the soil body that hardness is larger.
Another technical solution of the present invention is, provide a kind of method utilizing Biaxial Compressive gas rotary ejection type mixing pile machine pile, its step comprises: pile-forming machine perching makes the stirring-head of shaft be positioned on design stake position; Drive shaft to rotate and pierce in the soil body downwards and open pump for mortar transmission and slurry agitation machine simultaneously, open air compressor machine again, make shaft rotate lower boring and stir the soil body while whitewashing under the sweeping along of pressure-air, until stirring-head to reach at the bottom of design elevation, then rotate up and promote shaft to stir the soil body, whitewashing under the sweeping along of pressure-air simultaneously, until the stirring-head of shaft arrives design of pile top absolute altitude.
Biaxial Compressive gas rotary ejection type mixing pile machine of the present invention and utilize this machine pile method compared with prior art, have the following advantages and effect:
Due in whitewashing process, compressed air sweeps along slurries to spray from the surrounding of slurries ringwise, like this, spray pressure can rise to 2 ~ 4MPa from 0.2 ~ 0.4MPa of prior art, namely the mobility of slurries in the soil body is significantly increased, ensure that slurries evenly spread in the soil body, avoid slurries bulk deposition and in slightly distant positions slurries quantity not sufficient near whitewashing mouth, equally also prevent whitewashing mouth from being blocked by hack, avoid the situation causing soil body slurries quantity not sufficient due to blocking, therefore after being stirred blade stirring, the cement-soil even compact of pile body, pile quality is good, and slurries also can evenly spread smoothly in the harder soil body, like this, also can pile in harder sandy soils, argillic horizon, same also can pile smoothly in the soil body that the degree of depth is larger, significantly increase the pile degree of depth, the pile degree of depth of the present invention can reach more than 30m, equally because spray pressure increases, slurries mobility in the soil body is strong, like this, bore without the need to the shaft that must first sink as prior art the body that loosens the soil and promote shaft slip casting again, but direct rotary jet grouting while lower brill shaft, by the lower brill of prior art, on pull out slip casting, lower brill again, the process of pulling out slip casting again becomes lower brill of the present invention and slip casting, pull up again and slip casting, that is, pull out two of prior art heavy two and become one heavy one and pull out, increase substantially efficiency of construction, accelerate speed of application, reduction of erection time, save mechanical stage student contributions pooled to pay for class activities and labour cost, good in economic efficiency.
As improvement, pile frame is fixed with a transverse strut, transverse strut is provided with two the first spacing holes, two shaft activities are engaged in the first spacing hole, like this, this horizontal linking beam can make two shafts keep vertically, prevents that shaft in going down process is stressed and off normal is crooked.
As improving again, it also comprises a movable connection beam, movable connection beam is provided with two the second spacing holes, every root shaft is fixed with the Horizontal limiting plate of twice differing heights, the shaft part of every root shaft between twice Horizontal limiting plate is rotatably linked in the second spacing hole, and like this, movable connection beam can along with two shaft liftings, in shaft going down process, keep the distance between two shafts, two shafts are kept vertically.
As improving again, air nozzle is the air nozzle closed up in exit, and like this, the process that pressure-air sprays from air nozzle closing in, cross section of fluid channel is long-pending to be reduced to some extent, pressure-air flow velocity is accelerated further, thus increases spray pressure further.
As further improvement, each whitewashing mouth is concentric with the air nozzle be linked in outside this whitewashing mouth, and like this, the pressurized effect that air pressure sprays slurries is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of Biaxial Compressive gas rotary ejection type mixing pile machine of the present invention.
Fig. 2 is the enlarged section structural representation of the stirring-head of Biaxial Compressive gas rotary ejection type mixing pile machine of the present invention.
Shown in figure 1, unit head, 2, shaft, 3, defeated slurry house steward, 4, defeated slurry is in charge of, and 5, slurry agitation machine, 6, flange, 7, stirring-head, 8, whitewashing mouth, 9, air nozzle, 10, air compressor machine, 11, gas transmission main, 12, gas transmission is in charge of, 13, transverse strut, the 14, first spacing hole, 15, movable connection beam, 16, the second spacing hole, 17, Horizontal limiting plate, 18, pump for mortar transmission.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1 and Figure 2, Biaxial Compressive gas rotary ejection type mixing pile machine of the present invention, it comprises pile frame, unit head 1, two parallel shafts 2, defeated slurry house steward 3, two defeated slurries are in charge of 4, pump for mortar transmission 18 and slurry agitation machine 5.Unit head 1 is arranged on pile frame, and shaft 2 is hollow tubular and two shafts 2 are installed in the lower end of unit head 1, and every root shaft 2 lower end is fixed with the stirring-head 7 of a band stirring vane through flange 6.Each stirring-head 7 is fixed with a whitewashing mouth 8, each whitewashing mouth 8 is in charge of 4 through defeated slurry, defeated slurry house steward 3 is communicated with pump for mortar transmission 18, and pump for mortar transmission 18 is communicated with slurry agitation machine 5.The defeated slurry of every root is in charge of 4 and is arranged in the tube chamber of a shaft 2, specifically, stirring-head 7 Nei Yeyou hollow chamber, most of pipeline section that defeated slurry is in charge of 4 is positioned at the tube chamber of shaft 2, defeated slurry is in charge of 4 bottom fraction pipeline sections and is positioned at the chamber of stirring-head 7 and is communicated with whitewashing mouth 8, and a part of pipeline section that 4 tops are in charge of by defeated slurry stretches out the tube chamber of shaft 2 and starches house steward 3 be communicated with defeated.In other words, the defeated slurry house steward 3 of this Biaxial Compressive gas rotary ejection type mixing pile machine is in charge of 4 with two defeated slurries and is communicated with, and two defeated slurries are in charge of 4 and have been communicated with two whitewashing mouths 8 respectively.
This Biaxial Compressive gas rotary ejection type mixing pile machine also comprises two air nozzles, 9, air compressor machine, 10, gas transmission main 11 and two gas transmissions are in charge of 12, each air nozzle 9 is fixed on a stirring-head 7, and each air nozzle 9 is concentric and to be linked in this whitewashing mouth 8 peripheral with mouth 8 of whitewashing.Each air nozzle 9 is communicated with the tube chamber lower end of a shaft 2 through the chamber of a stirring-head 7, specifically, and the chamber of each air nozzle 9 and a stirring-head 7, and the chamber of this stirring-head 7 is communicated with the tube chamber lower end of a shaft 2.The lower end that tube chamber upper end and a gas transmission of this shaft 2 are in charge of 12 is communicated with, and the upper end that this gas transmission is in charge of 12 is communicated with one end of gas transmission main 11, and the other end of gas transmission main 11 is communicated with air compressor machine 10.The air nozzle 9 that air nozzle 9 closes up for exit, specifically, air nozzle 9 is the Rotary-table constantly closed up, and the bore in exit is minimum.
Gas transmission main 11 lower end of this Biaxial Compressive gas rotary ejection type mixing pile machine is in charge of 12 with two gas transmissions respectively and is communicated with, two gas transmissions are in charge of 12 and are communicated with the tube chamber of a shaft 2 separately, the tube chamber of every root shaft 2 and the chamber of a stirring-head 7, the chamber of each stirring-head 7 is communicated with an air nozzle 9.
Pile frame is fixed with a transverse strut 13, transverse strut 13 is provided with 14, two shaft 2 activities of two the first spacing holes and is engaged in the first spacing hole 14.
This Biaxial Compressive gas rotary ejection type mixing pile machine also comprises a movable connection beam 15, movable connection beam 15 is provided with two the second spacing holes 16, every root shaft 2 is fixed with the Horizontal limiting plate 17 of twice differing heights, the shaft part of every root shaft 2 between twice Horizontal limiting plate 17 is rotatably linked in the second spacing hole 16.
Utilize the method for Biaxial Compressive gas rotary ejection type mixing pile machine pile of the present invention, its step comprises: pile-forming machine perching makes the stirring-head 7 of shaft 2 be positioned on design stake position; Drive shaft 2 to rotate and pierce in the soil body downwards and open pump for mortar transmission 18 and slurry agitation machine 5 simultaneously, open air compressor machine 10 again, make shaft 2 rotate lower boring and stir the soil body while whitewashing under the sweeping along of pressure-air, until stirring-head 7 to reach at the bottom of design elevation, then rotate up and promote shaft 2 to stir the soil body, whitewashing under the sweeping along of pressure-air simultaneously, until the stirring-head 7 of shaft 2 arrives design of pile top absolute altitude.
Claims (6)
1. a Biaxial Compressive gas rotary ejection type mixing pile machine, it comprises pile frame, unit head (1), two parallel shafts (2), a defeated slurry house steward (3), two defeated slurries are in charge of (4), pump for mortar transmission (18) and slurry agitation machine (5), unit head (1) is arranged on pile frame, shaft (2) is for hollow tubular and two shafts (2) are installed on unit head (1), every root shaft (2) lower end is fixed with the stirring-head (7) of a band stirring vane through flange (6), each stirring-head (7) is fixed with whitewashing mouth (8), each whitewashing mouth (8) is in charge of (4) through defeated slurry, defeated slurry house steward (3) is communicated with pump for mortar transmission (18), pump for mortar transmission (18) is communicated with slurry agitation machine (5), the defeated slurry of every root is in charge of (4) and is arranged in the tube chamber of a shaft (2), it is characterized in that: it also comprises two air nozzles (9), an air compressor machine (10), a gas transmission main (11) and two gas transmissions are in charge of (12), each air nozzle (9) is fixed on a stirring-head (7), each air nozzle (9) is linked in whitewashing mouth (8) outward, each air nozzle (9) is communicated with the tube chamber lower end of a shaft (2), the lower end that (12) are in charge of in tube chamber upper end and a gas transmission of this shaft (2) is communicated with, the upper end that (12) are in charge of in this gas transmission is communicated with one end of gas transmission main (11), the other end of gas transmission main (11) is communicated with air compressor machine (10).
2. Biaxial Compressive gas rotary ejection type mixing pile machine according to claim 1, it is characterized in that: pile frame is fixed with a transverse strut (13), transverse strut (13) is provided with two the first spacing holes (14), and the activity of two shafts (2) is engaged in the first spacing hole (14).
3. Biaxial Compressive gas rotary ejection type mixing pile machine according to claim 1, it is characterized in that: it also comprises a movable connection beam (15), movable connection beam (15) is provided with two the second spacing holes (16), every root shaft (2) is fixed with the Horizontal limiting plate (17) of twice differing heights, every root shaft (2) shaft part be arranged between twice Horizontal limiting plate (17) is rotatably linked in the second spacing hole (16).
4. Biaxial Compressive gas rotary ejection type mixing pile machine according to claim 1, is characterized in that: the air nozzle (9) that air nozzle (9) closes up for exit.
5. Biaxial Compressive gas rotary ejection type mixing pile machine according to claim 1, is characterized in that: each whitewashing mouth (8) is with to be linked in this whitewashing mouth (8) air nozzle outward (9) concentric.
6. utilize the method for the Biaxial Compressive gas rotary ejection type mixing pile machine pile of claim 1, it is characterized in that: its step comprises: pile-forming machine perching makes the stirring-head of shaft (2) (7) be positioned on design stake position; Drive shaft (2) to rotate and pierce in the soil body downwards and open pump for mortar transmission (18) and slurry agitation machine (5) simultaneously, open air compressor machine (10) again, make shaft (2) rotate lower boring and stir the soil body while whitewashing under the sweeping along of pressure-air, until stirring-head (7) to reach at the bottom of design elevation, then rotate up and promote shaft (2) to stir the soil body, whitewashing under the sweeping along of pressure-air simultaneously, until the stirring-head (7) of shaft (2) arrives design of pile top absolute altitude.
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| CN201410281049.9A CN104018493B (en) | 2014-06-20 | 2014-06-20 | Biaxial Compressive gas rotary ejection type mixing pile machine and utilize the method for this machine pile |
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| CN201410281049.9A CN104018493B (en) | 2014-06-20 | 2014-06-20 | Biaxial Compressive gas rotary ejection type mixing pile machine and utilize the method for this machine pile |
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| CN104018493B true CN104018493B (en) | 2015-12-23 |
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| CN104631446A (en) * | 2015-01-14 | 2015-05-20 | 中交天津港湾工程研究院有限公司 | Technical method for improving quality of deep cement soil mixing piles using compressed air foam |
| CN104878750A (en) * | 2015-06-05 | 2015-09-02 | 赵子健 | Rhombic combined stirring and pile forming machine |
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| CN105937237B (en) * | 2016-06-24 | 2018-06-26 | 浙江鸿晨建设有限公司 | Multiaxis calm the anger rotary ejection type mixing pile machine and using this machine pile method |
| CN106284326B (en) * | 2016-08-30 | 2018-10-23 | 浙江坤德创新岩土工程有限公司 | Deep-mixing pile driver |
| CN106854871A (en) * | 2017-03-02 | 2017-06-16 | 陕西桩鑫建设工程有限公司 | A kind of vertical cement mixing pile former and molding construction method |
| CN110158583B (en) * | 2019-04-19 | 2020-12-01 | 铁三院(天津)工程有限公司 | All-dimensional rotary-cut mixing (ARM) pile construction device and construction method |
| CN110700249A (en) * | 2019-09-19 | 2020-01-17 | 江苏劲桩基础工程有限公司 | Construction method of high-compactness clay forced-expansion composite pile |
| CN111794219A (en) * | 2020-07-21 | 2020-10-20 | 江西省地质工程(集团)公司 | Construction method for reinforcing foundation by single-machine double-shaft jet grouting pile |
| CN115262559B (en) * | 2022-07-29 | 2024-02-13 | 东南大学 | Design parameter optimization method for stirring device, stirring device and contaminated soil piling method |
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Address after: 315032 the third floor, No. three, No. 106, Xinqiao, Jiangbei District, Ningbo, Zhejiang Co-patentee after: HUAFENG CONSTRUCTION Co.,Ltd. Patentee after: ZHEJIANG HONGCHEN CONSTRUCTION Co.,Ltd. Address before: 315042 Zhejiang province Ningbo City Jiangdong District Road No. 984 Min'an Co-patentee before: HUAFENG CONSTRUCTION Co.,Ltd. Patentee before: NINGBO HONGCHEN CONSTRUCTION Co.,Ltd. |
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Effective date of registration: 20200521 Address after: 315032 the third floor, No. three, No. 106, Xinqiao, Jiangbei District, Ningbo, Zhejiang Co-patentee after: ZHONGHUA HUAFENG CONSTRUCTION Co.,Ltd. Patentee after: ZHEJIANG HONGCHEN CONSTRUCTION Co.,Ltd. Address before: 315032 the third floor, No. three, No. 106, Xinqiao, Jiangbei District, Ningbo, Zhejiang Co-patentee before: HUAFENG CONSTRUCTION Co.,Ltd. Patentee before: ZHEJIANG HONGCHEN CONSTRUCTION Co.,Ltd. |