CN202787245U - High bearing capacity pile foundation with tubular pile inserted - Google Patents
High bearing capacity pile foundation with tubular pile inserted Download PDFInfo
- Publication number
- CN202787245U CN202787245U CN 201220495900 CN201220495900U CN202787245U CN 202787245 U CN202787245 U CN 202787245U CN 201220495900 CN201220495900 CN 201220495900 CN 201220495900 U CN201220495900 U CN 201220495900U CN 202787245 U CN202787245 U CN 202787245U
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Abstract
The utility model relates to a high bearing capacity pile foundation with a tubular pile inserted. The high bearing capacity pile foundation with the tubular pile inserted comprises the inserted tubular pile and a pile hole. The high bearing capacity pile foundation with the tubular pile inserted is characterized in that a casing pipe is installed in the pile hole and an expanded-base foundation is arranged at the bottom of the casing pipe. The high bearing capacity pile foundation with the tubular pile inserted has the advantages that a precast tubular pile is adopted, so that bearing capacity, construction rate and quality is guaranteed, according to technology of an immersed casing tube, potential safety hazard caused by collapse holes when the holes are formed and the pile is inserted, and environmental pollution caused by uncleaned slurry are further avoided. Due to the fact that the expanded-base foundation is ramming expanded, the bearing capacity of the pile foundation can be further increased. The pile foundation is simple in construction, high in speed, reliable in quality and high in bearing capacity. According to the immersed casing tube and a method of filling stuffing materials in the casing tube so as to carry out ramming expanding, to form the expanded-base foundation and to insert the pile, defects that construction period of expanded-base foundation pile filling of the immersed casing tube is long, construction quality is not prone to be controlled and traditional inserted piles are not capable of carrying out the ramming expanding to form the expanded-base foundation are effectively overcome, and therefore the bearing capacity of the pile foundation of the tubular pile is further improved.
Description
Technical field
The utility model belongs to pile tube, relates in particular to a kind of high-bearing capacity pile foundation of implanting pile tube.
Background technology
Because bearing capacity is high, low, the easy construction of cost, immersed tube club-footed bored concrete pile was used widely in recent years, but its construction quality is difficult for guaranteeing, and long construction period, immersed tube club-footed bored concrete pile are to form spread foundation after utilizing immersed tube technique pore-forming, and put into reinforcing cage in the hole, a kind of pile foundation that concreting forms, but in the filling concrete process, section occurs easily, necking down affects construction quality, need the quantity inspected by random samples large in the work progress, directly have influence on construction quality and efficient.The embedded pile bearing capacity is high, construction speed is fast, construction quality is easily controlled, tradition embedded pile process is to use spiral drilling machine to excavate soil taking hole forming, behind the pore-forming since in the existence of hole bottom slurry and the hole mud off can not provide enough support forces to subside easily, build the stake end and enlarge basic so can not ram to expand.But in pore forming process, cause easily the hole of collapsing, and mud is difficult to clean out, caused certain environment pollution.All there is certain weak point in the pile base construction method of above-mentioned two kinds of extensive uses.
The utility model content
The utility model is in order to overcome deficiency of the prior art, a kind of high-bearing capacity pile foundation that is applicable to the implantation pile tube of industry and civilian construction tube pile construction engineering is provided, combine the advantage of immersed tube club-footed bored concrete pile and implantation pile tube, can effectively solve the problem that exists when expanding end perfusion pile tube and implant pile driving construction.
The utility model is achieved through the following technical solutions for achieving the above object, and a kind of high-bearing capacity pile foundation of implanting pile tube comprises and implants pile tube and stake hole, and it is characterized in that: described stake hole is built-in with sleeve pipe, and described sleeve bottom is provided with spread foundation.
The diameter of described spread foundation is 500-1300mm, and height is more than or equal to 0.5m.
Described spread foundation adopts rubble or dryness concrete material.
Beneficial effect: adopt prefabricated tubular pile, can guarantee its bearing capacity, construction speed and quality, collapse when immersed tube technique can further avoid pore-forming to plant the potential safety hazard of pore area and the environment pollution that the mud cleaning does not totally bring.Form the bearing capacity that spread foundation can further increase pile foundation by ramming to expand.Construction is simple, speed fast, reliable in quality, pile foundation that bearing capacity is high.Sleeve pipe is sunk in employing, in sleeve pipe, inject inserts and ram the method that expands the formation spread foundation and plant stake, can effectively solve immersed tube club-footed bored concrete pile long construction period, the difficult control of construction quality, and traditional embedded pile can not ram the deficiency that expand to form spread foundation, can further improve the bearing capacity of pile tube pile foundation.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the high-bearing capacity pile foundation technological process of implanting pile tube.
Among the figure: 1-implants the pile tube 2-spread foundation 3-cement paste 4-folder post device 5-soil sampler 6-movable valve 7-sleeve pipe 8-hammer ram 9-expanded bore pile base that fetches earth, 10-stake hole.
The specific embodiment
Below in conjunction with preferred embodiment, details are as follows to the specific embodiment that foundation the utility model provides: see accompanying drawing for details, a kind of high-bearing capacity pile foundation of implanting pile tube comprises and implants pile tube 1 and a stake hole 3, described stake hole is built-in with sleeve pipe 7, and described sleeve bottom is provided with spread foundation 2.The diameter of described spread foundation is 500-1300mm, and height is more than or equal to 0.5m.Described spread foundation adopts rubble or dryness concrete material.The utility model is applicable to have in the 30m under soft foundation and the earth's surface ground of harder bearing stratum, adopts expanded bore pile, can effectively bring into play and expand end supporting effect, obtains higher pile capacity.
Technological process,
(1) the true fixed pile in measurement control point that provides according to design stake bit plan and Construction unit is placed on sleeve pipe 7 place, stake position and utilizes vibration sinking tube equipment to squeeze in the soil layer, and fetching earth in sleeve pipe subsequently forms the stake hole;
(2) add the inserts such as rubble or dryness concrete at the sleeve pipe inner edge, be generally 0.1-0.3m
3, sleeve pipe is pulled up certain altitude, be generally 0.6-1.0m, use hammer ram 8 to ram sleeve pipe 7 inner filling materials, it is extruded sleeve pipe 7 downwards and diffusion all around, form spread foundation 2.Subsequently sleeve pipe 7 is being sink to the former degree of depth.According to designing requirement, can repeat above-mentioned steps and carry out the expansion of secondary rammer;
(3) injected water mud 3 in sleeve pipe, and plant stake, pile tube is implanted to the spread foundation place, extract sleeve pipe, form the high bearing ability pedestal pile base 9 of implanting pile tube.
Pile tube 1 diameter that the utility model uses is generally 400-1000mm, and stake is long should not to surpass 20m, and spread foundation 2 diameters are generally 500-1300mm, and its height should be not less than 0.5m.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment does.
Claims (3)
1. a high-bearing capacity pile foundation of implanting pile tube comprises and implants pile tube and stake hole, and it is characterized in that: described stake hole is built-in with sleeve pipe, and described sleeve bottom is provided with spread foundation.
2. the high-bearing capacity pile foundation of implantation pile tube according to claim 1, it is characterized in that: the diameter of described spread foundation is 500-1300mm, height is more than or equal to 0.5m.
3. the high-bearing capacity pile foundation of implantation pile tube according to claim 1 and 2 is characterized in that: described spread foundation employing rubble or dryness concrete material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495900 CN202787245U (en) | 2012-09-26 | 2012-09-26 | High bearing capacity pile foundation with tubular pile inserted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220495900 CN202787245U (en) | 2012-09-26 | 2012-09-26 | High bearing capacity pile foundation with tubular pile inserted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202787245U true CN202787245U (en) | 2013-03-13 |
Family
ID=47814527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220495900 Expired - Lifetime CN202787245U (en) | 2012-09-26 | 2012-09-26 | High bearing capacity pile foundation with tubular pile inserted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202787245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835292A (en) * | 2013-12-17 | 2014-06-04 | 建基建设集团有限公司 | High-frequency vibration-punching base expansion grouting pipe pile and construction method thereof |
-
2012
- 2012-09-26 CN CN 201220495900 patent/CN202787245U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835292A (en) * | 2013-12-17 | 2014-06-04 | 建基建设集团有限公司 | High-frequency vibration-punching base expansion grouting pipe pile and construction method thereof |
| CN103835292B (en) * | 2013-12-17 | 2015-09-02 | 建基建设集团有限公司 | High frequency vibrating rushes the construction method of base-extending deposited pile tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |