CN105002894A - High-strength cement-soil mixing pile - Google Patents
High-strength cement-soil mixing pile Download PDFInfo
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- CN105002894A CN105002894A CN201510385382.9A CN201510385382A CN105002894A CN 105002894 A CN105002894 A CN 105002894A CN 201510385382 A CN201510385382 A CN 201510385382A CN 105002894 A CN105002894 A CN 105002894A
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Abstract
The invention belongs to the technical field of buildings, and relates to a high-strength cement-soil mixing pile. The technical problems that in the prior art, the pulling resistance is poor, and the strength of a pile body is low are solved. The high-strength cement-soil mixing pile comprises a cement-soil mixing pile, wherein at least one concave-convex pile body with different axial cross sections is arranged in the cement-soil mixing pile, and alternate concave portions and convex portions are arranged on the outer wall of each concave-convex pile body. The high-strength cement-soil mixing pile is high in strength and good in pulling resistance performance, and can save raw materials.
Description
Technical field
The invention belongs to technical field of buildings, relate to a kind of high strength cement soil agitation pile.
Background technology
Cement mixing method is a kind of method for reinforcing the low ground of saturated soft clay, it utilizes cement as curing compound, by special Mixing Machine, in ground depths by weak soil and curing compound action of forced stirring, utilize the series of physical chemical reaction produced between curing compound and weak soil, weak soil is hardened into have the high-quality ground of globality, water stability and some strength.But existing cement mixing method is all single-column stake, when the higher uplift resistance of needs and compressive resistance, need the aperture of boring to do large thus make the boring post of larger aperture.
The manufacturing process of existing cement mixing method comprises the following steps:
1, position of p ile machine, centering, leveling.After putting agitation pile stake position well, mobile mixing pile machine arrives and refers to fixed pile, centering, leveling level gauge leveling.
2, leading truck verticality is adjusted.Adopt transit or ceiling hammer double-direction control leading truck verticality.By design and code requirement, verticality be less than 1.0% long.
3, mixing slurries in advance.Deep mixer stirs simultaneously in advance, and slurries are put into aggregate bin before treating mud jacking by backstage mixing cement grout.Select cement grade 425# common silicate cement mixing slurries, water/binder ratio controls in 0.45 ~ 0.50 scope, is no less than 50Kg according to designing requirement every meter deep-mixed pile cement consumption.
4, stir.Start deep-mixing pile driver rotating disk, after head rotating speed to be mixed is normal, drilling rod can be made to stir along sinking limit, leading truck limit, and subsidence velocity regulates and controls by gear, and operating current should not be greater than rated value.
5, whitewashing is stirred and is promoted.After sinking to arriving projected depth, open mortar pump, send slurry to stirring-head grout outlet by pipeline, after pulp, start mixing pile machine and tensioning chain device, stir limit lifting drilling rod by designing the hoisting velocity 0.50 ~ 0.8m/min limit whitewashing determined, slurries and the soil body are are fully mixed and stirred.
6, repeat to stir.Stirring drill bit is promoted to after stake pushes up above 500mm height, and close mortar pump, repeat stirring and sink down into projected depth, subsidence velocity is undertaken by designing requirement.
7, whitewashing repeats to stir and promotes.After sinking to arriving projected depth, whitewashing repeats to stir and promotes, and is promoted to ground always.
8, stake machine displacement.Constructed after a pile, mobile stake machine, to next pile position, repeats the construction that above step carries out next pile.
As can be seen here, the construction method of existing cement mixing method is single making, and every pile is all cylindrical.
Deficiency is sent out in order to overcome prior art, people are through constantly exploring, propose various solution, as Chinese patent literature discloses a kind of one-tenth pile operation method [notification number: CN102943467A] of bidirectional stirring pile, cement mixing method is stirred by soil and cement paste and is formed, one width stirs wall and is made up of the cement mixing method of many vertical overlap joints mutually, several Soil-cement Walls overlap the longer Soil-cement Wall of formation mutually, every width Soil-cement Wall is made up of the cement mixing method that the six roots of sensation is vertical, the six roots of sensation cement mixing method same time is formed, six roots of sensation cement mixing method is on same vertical plane, adjacent pile body overlaps mutually, adjacent Soil-cement Wall overlaps mutually.
Such scheme can once be constructed six roots of sensation cement mixing method simultaneously, decrease the multiple tracks seam of former single shaft or the formation of two axle cement mixing methods, improve efficiency of construction, decrease the amount of labour used, compensate for the defects such as three axes agitating pile displacement soil is many, water/binder ratio is large, cement mixing content is large, shorten the construction period more than 2/3rds.But as described in the program, six roots of sensation cement mixing method is on same vertical plane, and therefore agitation pile linearly distributes thus forms the cement mixing method of planar shaped, the uplift resistance of this cement mixing method, intensity need to be improved further.
Summary of the invention
The object of the invention is for the problems referred to above, the high strength cement soil that a kind of pile strength is high, uplift resistance is high agitation pile is provided.
For achieving the above object, present invention employs following technical proposal: a kind of high strength cement soil agitation pile, comprise cement mixing method, have at least one axial cross section in described cement mixing method and amass different concavo-convex pile bodies, the outer wall of described concavo-convex pile body has the recess and protuberance that mutually replace.
In above-mentioned high strength cement soil agitation pile, the cross section of described concavo-convex pile body is rectangle.
In above-mentioned high strength cement soil agitation pile, described concavo-convex pile body is interconnected vertically by some concavo-convex stakes and forms, and the cross section of described concavo-convex stake is rectangle.
In above-mentioned high strength cement soil agitation pile, described concavo-convex pile body is mutually alternately interconnected by some heavy in section stakes and small bore stake and forms.
In above-mentioned high strength cement soil agitation pile, described heavy in section stake and the cross section of small bore stake are rectangle.
In above-mentioned high strength cement soil agitation pile, be formed by connecting with connector between described concavo-convex stake.
In above-mentioned high strength cement soil agitation pile, be formed by connecting with connector between described heavy in section stake and small bore stake.
In above-mentioned high strength cement soil agitation pile, there is in described concavo-convex pile body the hollow cavity axially arranged.
In above-mentioned high strength cement soil agitation pile, described connector comprises the first attaching nut and the second attaching nut, connection-peg is bolted with in the first described attaching nut, elastic component is disposed with by bottom nut to the direction of nut oral area in the second described attaching nut, packing ring, collar and intermediate nut, intermediate nut and the second attaching nut are spirally connected fixing, collar is between intermediate nut and packing ring, when connection-peg is inserted in intermediate nut, collar can block connection-peg thus the first attaching nut is fixedly connected with the second attaching nut, described intermediate nut has the collar positioning chamber suitable with collar outer wall matching form near one end of collar, described collar positioning chamber also connects the obtuse-angulate collar limit chamber of shape between and the chamber wall of collar positioning chamber.
In above-mentioned high strength cement soil agitation pile, described collar inside has at least one latch, described connection-peg outer wall and have the snap ring that at least one and latch match with the junction of collar, and latch and snap ring form snap-fit engagement.Described collar is enclosed in ring by several shapes, card that size is identical.
Compared with prior art, the invention has the advantages that: insert concavo-convex pile body at cement mixing method, make concavo-convex pile body by recess and protuberance and cement mixing method strong bonded, thus promote the intensity of cement mixing method, also further improve extraction-resistant behavior; The concavo-convex pile body of square-section shape can obtain larger girth with less cross-sectional area, thus realizes the object of saving material.
Accompanying drawing explanation
Fig. 1 is the structural representation of cross section provided by the invention;
Fig. 2 is forming process schematic diagram provided by the invention;
Fig. 3 is structural representation provided by the invention;
Fig. 4 is structural representation provided by the invention;
Fig. 5 is another kind of structural representation provided by the invention;
Fig. 6 is another kind of structural representation provided by the invention;
Fig. 7 is with the structural representation that connector connects between heavy in section of the present invention stake and small bore stake;
Fig. 8 is the structural representation of clamping between concavo-convex stake;
Fig. 9 is welded structure schematic diagram between concavo-convex stake;
Figure 10 is the structural representation of connector;
Figure 11 is the structural representation of intermediate nut;
Figure 12 is the another kind of structural representation of intermediate nut;
Figure 13 is the structural representation of the intermediate nut of prior art;
Figure 14 is the structural representation of collar;
Figure 15 is the structural representation of connection-peg;
Figure 16 is the A place enlarged drawing of Figure 15.
In figure: cement mixing method 1, concavo-convex pile body 2, recess 21, protuberance 22, heavy in section stake 23, small bore stake 24, hollow cavity 25, concavo-convex stake 4, connector 5, first attaching nut 51, second attaching nut 52, connection-peg 53, snap ring 531, elastic component 54, packing ring 55, collar 56, latch 561, card 562, intermediate nut 57, collar positioning chamber 58, collar limit chamber 59, center drill rod 91, periphery drilling rod 92, end plate 100, draw-in groove 101, shackle member 102, arc column 103.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Embodiment 1
As shown in Figure 1 and Figure 4, a kind of high strength cement soil agitation pile, comprise cement mixing method 1, cement mixing method 1 outer wall is interconnected by multiple arc column 103 and forms, have at least one axial cross section in described cement mixing method 1 and amass different concavo-convex pile bodies 2, the outer wall of described concavo-convex pile body 2 has the recess 21 and protuberance 22 that mutually replace.As shown in Figure 3, there is in concavo-convex pile body 2 hollow cavity 25 axially arranged, hollow cavity 25 can save the cost of concavo-convex pile body 2, the vertical and horizontal stiffening ring that can arrange steel ring or make with carbon fiber in concavo-convex pile body 2, for improving the intensity of concavo-convex pile body 2 vertical and horizontal.
As shown in Figure 2, when concrete stake processed, a center drill rod 91 can be set, several periphery drilling rods 92 are set around center drill rod 91, center drill rod 91 and periphery drilling rod 92 all arrange paddle, and the inside of center drill rod 91 and periphery drilling rod 92 has the passage of energy gunite, center drill rod 91 and periphery drilling rod 92 are in rotation process, the stirring scope of paddle is overlapped, and gunite makes cement paste and earth form cement mixing method 1 when rotating, before cement mixing method 1 is uncured, center drill rod 91 and periphery drilling rod 92 are proposed ground, in cement mixing method 1, insert concavo-convex pile body 2 makes concavo-convex pile body 2 be fixedly connected with cement mixing method 1.O1 and O2 in Fig. 2 is respectively the stirring radius of center drill rod 91 and periphery drilling rod 92.
The cross section of concavo-convex pile body 2 is rectangle, and preferably, the cross section of concavo-convex pile body 2 is square, thus can obtain maximum girth with minimum area, with cement mixing method 1 increasing friction force, thus increases the extraction-resistant behavior of whole cement mixing method.
As shown in Figure 6, concavo-convex pile body 2 is mutually alternately interconnected by some heavy in section stakes 23 and small bore stake 24 and forms.The cross section of heavy in section stake 23 and small bore stake 24 is rectangle.As shown in Figure 7, be formed by connecting with connector 5 between heavy in section stake 23 and small bore stake 24.
As shown in Figure 10, connector 5 comprises the first attaching nut 51 and the second attaching nut 52, connection-peg 53 is bolted with in the first described attaching nut 51, elastic component 54 is disposed with by bottom nut to the direction of nut oral area in the second described attaching nut 52, packing ring 55, collar 56 and intermediate nut 57, intermediate nut 57 and the second attaching nut 52 are spirally connected fixing, collar 56 is between intermediate nut 57 and packing ring 55, when connection-peg 53 is inserted in intermediate nut 57, collar 56 can block connection-peg 53 thus the first attaching nut 51 is fixedly connected with the second attaching nut 52, shown in Figure 11 and Figure 12, intermediate nut 57 has the collar positioning chamber 58 suitable with collar 56 outer wall matching form near one end of collar 56, collar positioning chamber 58 also connects the collar limit chamber 59 forming obtuse angle a between and the chamber wall of collar positioning chamber 58, the angle of obtuse angle a is preferably 130-150 °, the chamber wall of collar limit chamber 59 plays position-limiting action, can prevent collar 56 from skidding off collar positioning chamber 58, thus make collar 56 reliable with the stable connection of connection-peg 53.Elastic component 54 can be powerful cylindrical spring, and packing ring 55 can hold collar 56, also plays a supporting role.
When specifically connecting, first attaching nut 51 or the second attaching nut 52 are fixed in heavy in section stake 23, second attaching nut 52 or the first attaching nut 51 are fixed in small bore stake 24, and connection-peg 53 is inserted in intermediate nut 57 connection that can realize between small bore stake 24 and heavy in section stake 23.Thus the length of concavo-convex pile body 2 can be lengthened, be convenient to play the stake of the various degree of depth, in addition, the structure of connector 5 also makes heavy in section stake 23 and small bore stake 24 can be quick, stable connection.
Figure 13 is the structural representation of the intermediate nut 57 of prior art, this intermediate nut 57 has collar positioning chamber 58 but does not have collar limit chamber 59, therefore when connection-peg 53 insertion speed is too fast or contact engaging and separating force is excessive, collar 56 can skid off intermediate nut 57 along collar positioning chamber 58 always, thus causes the connection failure of collar 56 and connection-peg 53.
As shown in Figure 10, Figure 15 and Figure 16, collar 56 inside has at least one latch 561, described connection-peg 53 outer wall and have the snap ring 531 that at least one and latch 561 match with the junction of collar 56, latch 561 and snap ring 531 form snap-fit engagement, improve bonding strength.Snap ring 531 and latch 561 can have multiple, and arrange along the axis of connection-peg 53 and collar 56 respectively.
As shown in figure 14, described collar 56 encloses in ring-like by several shapes, card 562 that size is identical, and latch 561 is positioned at the inwall of card 562, and latch 561 can enclose equally in ring-like.
Embodiment 2
Structure and the operating principle of the present embodiment are substantially the same manner as Example 1, difference is, as shown in Figure 5, concavo-convex pile body 2 is interconnected vertically by some concavo-convex stakes 4 and forms, the cross section of described concavo-convex stake 4 is rectangle, and the outer wall of concavo-convex stake 4 has the recess 21 and protuberance 22 that are arranged alternately.Be formed by connecting with connector 5 between concavo-convex stake 4, connected mode and away from identical with the connection in embodiment 1 between heavy in section stake 23 and small bore stake 24.
Concavo-convex stake 4 also can be welded and fixed by end plate 100, as shown in Figure 9, at concavo-convex stake 4 two ends fixed charge method end plate 100, when two concavo-convex stakes 4 near or when needing to connect, weld adjacent end plate 100 in two concavo-convex stakes 4 and can realize the connection of two concavo-convex stakes 4
Concavo-convex stake 4 can also be connected and fixed by end plate 100, as shown in Figure 8, at concavo-convex stake 4 two ends fixed charge method end plate 100, the outer wall of end plate 100 has draw-in groove 101, connected and fixed by shackle member 102 between two pieces of adjacent end plates 100, shackle member 102 snaps onto in draw-in groove 101.
The above-mentioned structure being welded and fixed and connecting and fixing and mode also can be used in the connection of heavy in section stake 23 and small bore stake 24.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as cement mixing method 1, concavo-convex pile body 2, recess 21, protuberance 22, heavy in section stake 23, small bore stake 24, hollow cavity 25, concavo-convex stake 4, connector 5, first attaching nut 51, second attaching nut 52, connection-peg 53, snap ring 531, elastic component 54, packing ring 55, collar 56, latch 561, card 562, intermediate nut 57, collar positioning chamber 58, collar limit chamber 59, center drill rod 91, periphery drilling rod 92, end plate 100, draw-in groove 101, shackle member 102 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (10)
1. a high strength cement soil agitation pile, comprise cement mixing method (1), it is characterized in that, have at least one axial cross section in described cement mixing method (1) and amass different concavo-convex pile bodies (2), the outer wall of described concavo-convex pile body (2) has the recess (21) and protuberance (22) that mutually replace.
2. high strength cement soil agitation pile according to claim 1, it is characterized in that, the cross section of described concavo-convex pile body (2) is rectangle.
3. high strength cement soil agitation pile according to claim 1, it is characterized in that, described concavo-convex pile body (2) is interconnected vertically by some concavo-convex stakes (4) and forms, and the cross section of described concavo-convex stake (4) is rectangle.
4. high strength cement soil agitation pile according to claim 1, is characterized in that, described concavo-convex pile body (2) is mutually alternately interconnected by some heavy in section stakes (23) and small bore stake (24) and forms.
5. high strength cement soil agitation pile according to claim 4, it is characterized in that, described heavy in section stake (23) and the cross section of small bore stake (24) are rectangle.
6. high strength cement soil agitation pile according to claim 3, is characterized in that, be formed by connecting between described concavo-convex stake (4) with connector (5).
7. high strength cement soil agitation pile according to claim 4, is characterized in that, be formed by connecting between described heavy in section stake (23) and small bore stake (24) with connector (5).
8. high strength cement soil agitation pile according to claim 1, is characterized in that having the hollow cavity (25) axially arranged in described concavo-convex pile body (2).
9. the high strength cement soil agitation pile according to claim 6 or 7, it is characterized in that, described connector (5) comprises the first attaching nut (51) and the second attaching nut (52), connection-peg (53) is bolted with in described the first attaching nut (51), elastic component (54) is disposed with by bottom nut to the direction of nut oral area in described the second attaching nut (52), packing ring (55), collar (56) and intermediate nut (57), intermediate nut (57) and the second attaching nut (52) are spirally connected fixing, collar (56) is positioned between intermediate nut (57) and packing ring (55), when connection-peg (53) is inserted in intermediate nut (57), collar (56) can block connection-peg (53) thus the first attaching nut (51) is fixedly connected with the second attaching nut (52), described intermediate nut (57) has the collar positioning chamber (58) suitable with collar (56) outer wall matching form near one end of collar (56), described collar positioning chamber (58) also connects the obtuse-angulate collar limit chamber (59) of shape between and the chamber wall of collar positioning chamber (58).
10. high strength cement soil agitation pile according to claim 9, it is characterized in that, described collar (56) inside has at least one latch (561), described connection-peg (53) outer wall and have the snap ring (531) that at least one and latch (561) match with the junction of collar (56), latch (561) and snap ring (531) form snap-fit engagement.
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| CN201510385382.9A CN105002894A (en) | 2015-06-30 | 2015-06-30 | High-strength cement-soil mixing pile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510385382.9A CN105002894A (en) | 2015-06-30 | 2015-06-30 | High-strength cement-soil mixing pile |
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| WO2002033177A1 (en) * | 2000-10-11 | 2002-04-25 | Zhaohong Zhong | Quick coupling for reinforced concrete pole |
| CN1740456A (en) * | 2004-11-16 | 2006-03-01 | 周兆弟 | Pile connecting buckle and its prefabricated unit |
| CN101979778A (en) * | 2010-10-07 | 2011-02-23 | 周兆弟 | Method for butting concrete prefabricated member consisting of prefabricated member connector |
| CN201891112U (en) * | 2010-10-07 | 2011-07-06 | 周兆弟 | Prefabricated part connector and concrete prefabricated part butt joint structure formed by the same |
| CN104358254A (en) * | 2014-10-14 | 2015-02-18 | 周兆弟 | Variable-section hollow square pile |
| CN204780873U (en) * | 2015-06-30 | 2015-11-18 | 周兆弟 | High strength cement mixing method |
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2015
- 2015-06-30 CN CN201510385382.9A patent/CN105002894A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002033177A1 (en) * | 2000-10-11 | 2002-04-25 | Zhaohong Zhong | Quick coupling for reinforced concrete pole |
| CN1740456A (en) * | 2004-11-16 | 2006-03-01 | 周兆弟 | Pile connecting buckle and its prefabricated unit |
| CN101979778A (en) * | 2010-10-07 | 2011-02-23 | 周兆弟 | Method for butting concrete prefabricated member consisting of prefabricated member connector |
| CN201891112U (en) * | 2010-10-07 | 2011-07-06 | 周兆弟 | Prefabricated part connector and concrete prefabricated part butt joint structure formed by the same |
| CN104358254A (en) * | 2014-10-14 | 2015-02-18 | 周兆弟 | Variable-section hollow square pile |
| CN204780873U (en) * | 2015-06-30 | 2015-11-18 | 周兆弟 | High strength cement mixing method |
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Application publication date: 20151028 |