CN102888836B - Prefabricated reinforced concrete square pile - Google Patents
Prefabricated reinforced concrete square pile Download PDFInfo
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- CN102888836B CN102888836B CN 201210181717 CN201210181717A CN102888836B CN 102888836 B CN102888836 B CN 102888836B CN 201210181717 CN201210181717 CN 201210181717 CN 201210181717 A CN201210181717 A CN 201210181717A CN 102888836 B CN102888836 B CN 102888836B
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Abstract
The invention discloses a prefabricated reinforced concrete square pile, which comprises an upper section pile, a lower section pile, a first grouting pipe and a second grouting pipe, wherein the first grouting pipe is positioned in the center of the upper section pile; the second grouting pipe is positioned in the center of the lower section pile; the first grouting pipe penetrates through the upper section pile; the second grouting pipe penetrates through the lower section pile; the upper end of the lower section pile is connected with the lower end of the upper section pile; the lower end of the lower section pile is provided with a pile tip, and grouting holes are formed in the pile tip; and the second grouting pipe is communicated with the grouting holes. Compared with the prior art, the prefabricated reinforced concrete square pile has the advantages that single pile bearing capacity can be improved, the cost is saved, and shortcomings of high construction noise, low efficiency, heavy environmental pollution and the like of a cast-in-situ bored pile can be overcome.
Description
Technical field
The present invention relates to a kind of Prefabricated Reinforced Concrete Square Pile.
Background technology
Continuous propelling along with China's urban development construction process, gradually reducing of the idle land area in urban district, cause building longitudinally short transverse significantly improve, plane figure is significantly compressed, in the urban district, the adjacent building spacing constantly reduces, and Design of Foundation and the construction of building are had higher requirement.
East China-Shanghai, Jiangsu, zhejiang and other places Pile Foundations Design adopt more pile foundation type that bored pile, prestressed concrete pipe pile and Prefabricated Reinforced Concrete Square Pile are arranged at present.It is high that bored pile has a bearing capacity of single pile, on the less characteristics of surrounding enviroment impact, the shortcomings such as but it is various to have simultaneously the construction technology link, and efficiency of construction is low, long in time limit, the mechanical execution noise is large, the problems such as mud drilling construction and discharging are also very serious to the pollution of environment.Prestressed concrete pipe pile and Prefabricated Reinforced Concrete Square Pile, technological characteristics of construction are that mechanical execution efficient is higher, and the job site civilized construction is effective, adopt the static pressure construction pollution from environmental noise less.But it is that bearing capacity of single pile is low that these two kinds of techniques have common shortcoming, and the soil extrusion in construction effect is larger, must take into full account the protection to peripheral path pipeline and Nearby Structure during construction.These two kinds of stake types are compared, and prestressed concrete pipe pile Under Lateral Loading ability is very low, the shearing resistance weak effect, and precast square pile also can bear the part horizontal loading simultaneously except bearing vertical load, the soil compaction effect pile tube is more a shade better again than square pile.Several techniques respectively have quality.
Therefore, need a kind of new pile body to address the above problem.
Summary of the invention
The objective of the invention is for problems of the prior art, a kind of raising bearing capacity of single pile is provided, save the Prefabricated Reinforced Concrete Square Pile of cost to address the above problem.
For achieving the above object, Prefabricated Reinforced Concrete Square Pile of the present invention can adopt following technical scheme:
A kind of Prefabricated Reinforced Concrete Square Pile, comprise joint stake and the stake of lower joint, also comprise the first Grouting Pipe and the second Grouting Pipe, described the first Grouting Pipe is positioned at the center of described upper joint stake, described the second Grouting Pipe is positioned at the center of described lower joint stake, described the first Grouting Pipe connects described upper joint stake, and described the second Grouting Pipe connects described lower joint stake; The upper end of described lower joint stake is connected with the lower end of described upper joint stake, and the lower end of described lower joint stake has pile top, and described pile top is provided with injected hole, and described the second Grouting Pipe is communicated with described injected hole.
Beneficial effect: compare with background technology, Prefabricated Reinforced Concrete Square Pile of the present invention can either improve bearing capacity of single pile, saves cost, can make up the deficiencies such as the bored pile construction noise is large, efficient is low, environment pollution is serious again.
Description of drawings
Fig. 1 is the structural representation of upper joint stake;
Fig. 2 is the sectional drawing at upper joint stake pile body A-A place;
Fig. 3 is the structural representation of lower joint stake;
Fig. 4 is the sectional drawing at lower joint stake pile body B-B place;
Fig. 5 is the generalized section of upper joint stake;
Fig. 6 is upper joint stake and the lower connection diagram that saves stake;
Fig. 7 is the connection diagram of the first Grouting Pipe and the second Grouting Pipe;
Fig. 8 is the front view of the pile top of lower joint stake;
Fig. 9 is the generalized section of the pile top of lower joint stake.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used for explanation the present invention and is not used in and limits the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
See also Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 7, Prefabricated Reinforced Concrete Square Pile of the present invention, comprise joint stake 1 and lower joint stake 2, comprise that also the first Grouting Pipe 11 and the second Grouting Pipe 21, the first Grouting Pipe 11 are positioned at the center of joint stake 1 and connect upper joint stake 1.The second Grouting Pipe 21 is positioned at the center of lower joint stake 2 and connects lower joint stake 2.The upper end of lower joint stake 2 is connected with the lower end of upper joint stake 1, and the lower end of lower joint stake 2 has pile top 23, and pile top 23 is provided with injected hole 24, the second Grouting Pipe 21 and is communicated with injected hole 24.Wherein, the lower end of upper joint stake 1 is provided with the first pile cover 12, and the upper end of lower joint stake 2 is provided with the second pile cover 22.Wherein the first pile cover 12 and the second pile cover 22 are driving cap.The center, upper surface of lower joint stake 2 is preset with groove 23.Upper joint stake 1, lower joint stake 2 pipeline general arrangements: bury one of Grouting Pipe at the center of stake underground, the first Grouting Pipe 11 of upper joint stake 1 connects whole upper joint stake 1, the second Grouting Pipe 21 of lower joint stake 2 is buried underground to pile top 23 positions from lower joint 2 pile body tops, is connected with slurry casting machine cavity 26.
See also Fig. 6, shown in Figure 7, because pile follower needs, after 1 top bit the first Grouting Pipe 11 use blocking device 13 of upper joint stake clog, be cast in a top of joint stake 1, after excavation of foundation pit, the stake top is cut the fraction concrete, cut the degree of depth and be not more than 50mm, pull out blocking device 13 after cleaning out, carry out slip casting after the connection Grouting Pipe.Wherein blocking device 13 can be rubber stopper.
See also Fig. 6, shown in Figure 7, when carrying out pile extension with lower joint stake 2, upper joint stake 1 should notice that upper joint stake 1 and the Grouting Pipe of lower joint stake 2 align, compress with the second Grouting Pipe 21 tops of lower joint stake 2 after silicone sealant is smeared at the first Grouting Pipe 11 tube head positions of upper joint stake 1 and be connected, with connecting angle, four jiaos of upper joint stake 1 and lower joint 2 are carried out the operation of electric welding pile extension afterwards.
See also Fig. 8, shown in Figure 9, pile top 23 places of lower joint stake 2 are provided with slurry casting machine cavity 26, the second Grouting Pipe 21 and are communicated with slurry casting machine cavity 26, and slurry casting machine cavity 26 is communicated with injected hole 24.The key position of whole filling system is a top slurry casting machine, require the second Grouting Pipe and being connected of slurry casting machine cavity to seal reliable, when slurry casting machine cavity 26 is made, weld seam requires closely, the crack phenomenon must not be arranged, each injected hole 24 belows must arrange damping ring 25 and enter in slurry casting machine cavity 26 with suitable obstruct earth, and injected hole 24 must be taked necessary seal approach before pressing pile construction.
Prefabricated Reinforced Concrete Square Pile of the present invention can either improve bearing capacity of single pile, saves cost, can make up the deficiencies such as the bored pile construction noise is large, efficient is low, environment pollution is serious again.
Claims (1)
1. Prefabricated Reinforced Concrete Square Pile, comprise joint stake (1) and lower joint stake (2), it is characterized in that, also comprise the first Grouting Pipe (11) and the second Grouting Pipe (21), described the first Grouting Pipe (11) is positioned at the center of described upper joint stake (1), described the second Grouting Pipe (21) is positioned at the center of described lower joint stake (2), and described the first Grouting Pipe (11) connects described upper joint stake (1), and described the second Grouting Pipe (21) connects described lower joint stake (2), the upper end of described lower joint stake (2) is connected with the lower end of described upper joint stake (1), the lower end of described lower joint stake (2) has pile top (23), described pile top (23) is provided with injected hole (24), described the second Grouting Pipe (21) is communicated with described injected hole (24), the below of each described injected hole (24) is provided with damping ring (25), the mouth of pipe of first Grouting Pipe (11) of described upper joint stake (1) upper surface is provided with blocking device (13), after described upper joint stake (1) stake described the first Grouting Pipe of top bit (11) clogs with described blocking device (13), be cast in a top of described upper joint stake (1), after excavation of foundation pit, the stake top is cut the fraction concrete, cut the degree of depth and be not more than 50mm, pull out described blocking device (13) after cleaning out, carry out slip casting after connecting Grouting Pipe, the lower end of described upper joint stake (1) is provided with the first pile cover (12), and the upper end of described lower joint stake (2) is provided with the second pile cover (22), and described the first pile cover (12) and the second pile cover (22) are driving cap, the center, upper surface of described lower joint stake (2) is provided with groove (23), the pile top (23) of described lower joint stake (2) locates to be provided with slurry casting machine cavity (26), described the second Grouting Pipe (21) is communicated with described slurry casting machine cavity (26), and described slurry casting machine cavity (26) is communicated with described injected hole (24), when described upper joint stake (1) is carried out pile extension with lower joint stake (2), described upper joint stake (1) aligns with the Grouting Pipe of lower joint stake (2), compress with the second Grouting Pipe (21) top of lower joint stake (2) after silicone sealant is smeared at the first Grouting Pipe (11) tube head position of upper joint stake (1) and be connected, with connecting angle, the operation of electric welding pile extension is carried out in upper joint stake (1) and lower four jiaos of saving (2) afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210181717 CN102888836B (en) | 2012-06-05 | 2012-06-05 | Prefabricated reinforced concrete square pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210181717 CN102888836B (en) | 2012-06-05 | 2012-06-05 | Prefabricated reinforced concrete square pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102888836A CN102888836A (en) | 2013-01-23 |
| CN102888836B true CN102888836B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210181717 Active CN102888836B (en) | 2012-06-05 | 2012-06-05 | Prefabricated reinforced concrete square pile |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373488Y (en) * | 1999-05-07 | 2000-04-12 | 甘正常 | Precast pile |
| CN201132955Y (en) * | 2007-12-05 | 2008-10-15 | 中北大学 | Synchronized static pressure grouting precast pile device |
| CN102061702A (en) * | 2010-12-16 | 2011-05-18 | 大连大金马基础建设有限公司 | joint with anti-seismic slots for precast concrete piles |
| CN202672139U (en) * | 2012-06-05 | 2013-01-16 | 江苏兴厦建筑安装有限公司 | Prefabricated reinforced concrete square pile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101050513B1 (en) * | 2008-10-14 | 2011-07-20 | 정덕훈 | Field production pile top opening precast concrete embedded pile |
-
2012
- 2012-06-05 CN CN 201210181717 patent/CN102888836B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2373488Y (en) * | 1999-05-07 | 2000-04-12 | 甘正常 | Precast pile |
| CN201132955Y (en) * | 2007-12-05 | 2008-10-15 | 中北大学 | Synchronized static pressure grouting precast pile device |
| CN102061702A (en) * | 2010-12-16 | 2011-05-18 | 大连大金马基础建设有限公司 | joint with anti-seismic slots for precast concrete piles |
| CN202672139U (en) * | 2012-06-05 | 2013-01-16 | 江苏兴厦建筑安装有限公司 | Prefabricated reinforced concrete square pile |
Non-Patent Citations (3)
| Title |
|---|
| 张强等人.钻孔灌注桩桩底后注浆施工工艺.《中国市政工程》.2005,(第5期), |
| 蒋元海等人.预制钢筋混凝土方桩.《预制钢筋混凝土方桩 JC934-2004》.2004, * |
| 钻孔灌注桩桩底后注浆施工工艺;张强等人;《中国市政工程》;20051031(第5期);62-63 * |
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| CN102888836A (en) | 2013-01-23 |
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