CN2509232Y - Long-corn cement soil combined piles - Google Patents
Long-corn cement soil combined piles Download PDFInfo
- Publication number
- CN2509232Y CN2509232Y CN 01258951 CN01258951U CN2509232Y CN 2509232 Y CN2509232 Y CN 2509232Y CN 01258951 CN01258951 CN 01258951 CN 01258951 U CN01258951 U CN 01258951U CN 2509232 Y CN2509232 Y CN 2509232Y
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Abstract
The utility model discloses a long-corn cement soil combined pile that relates to a pile base, in particular to a pile that s used for prefabricating concrete soil part or the part of the concrete soil cast-on-situ. The utility model can ensure fully exertion of the resistance at the sides of the concrete soil pile and the resistance at the end of the corn pipe and the bearing capacity of single pile is large. The technical proposal is that: the combined pile consists of a concrete corn pile and a concrete soil pile. The length of the concrete corn pile is larger than that of the concrete soil. The length of the concrete corn pile is 5 to 40m, the concrete pile end enters at least 500mm into the solid soil layer by controlling the reasonable length of the concrete soil pile. The utility model is suitable for soft soil area and geological condition where within 25m under the surface of the soil, a relatively hard soil layer is distributed.
Description
Technical field
The utility model relates to a kind of pile foundation, especially a kind of stake that comprises precast concrete part or cast-in-place concrete part.
Background technology
Be applied to the compound pile pile foundation technology in the building foundation now, its common ground is that design and researcher only put forth effort on the exploitation to cement earth pile face side resistance, utilize the purpose of configuration concrete core stake also only to be to improve the bearing capacity of pile body compound section, thereby the collateral resistance of cement earth pile is brought into play.Therefore, at present the concrete core stake of existing various compound piles and the long relation of cement earth pile stake all are to adopt the length of concrete core stake to be less than or equal to the length of cement earth pile.For example: Chinese utility model patent notice of authorization number is CN2313959Y, notice of authorization day is on April 14th, 1999, a kind of " building foundation hard-core cement-earth compound pile " disclosed, this composite pile comprises preformed pile and cement earth pile, be in cement earth pile, to insert prefabricated pile body, and the length of preformed pile equal the length of cement earth pile.Test shows: the soil cement intensity of deep layer stirring concrete earth pile pile body and modulus of compressibility are decayed fast with the increase of the degree of depth, to the face of land 30% of general not enough its top intensity in 15m place and modulus of compressibility, the result causes: if cement earth pile is long, then the end resistance that hard soil layer can provide under deep cement earth pile face side resistance and the stake end all is difficult to performance, and has caused a large amount of wastes of cement-soil material.
Summary of the invention
Task of the present utility model is to overcome deficiency of the prior art, and a kind of cement earth pile face side resistance of both can having given full play to is provided, and can obtain the novel compound pile of higher end resistance again by the concrete core stake that enters hard soil layer.
In order to solve the problems of the technologies described above, by the following technical solutions: this compound pile is made up of stake of concrete core and cement earth pile, and described concrete core stake stake is grown up long in the cement earth pile stake, and concrete core stake stake is long to be 5～40m.
Long 12～the 25m that is preferably of concrete core stake stake of the utility model compound pile; The stake of concrete core can be adopted the concrete preformed pile, and the cross sectional shape of concrete preformed pile adopts square or square hollow, and its length of side is 200～400mm, and the cross sectional shape of concrete preformed pile also can adopt circle or annulus, and its external diameter is 250～500mm; The upward joint core stake of concrete preformed pile can be adopted wedge structure.The concrete core stake of compound pile also can adopt concrete immersed tube jar to annotate stake in addition, and its diameter is 300～500mm, and is provided with the stake end in the end that this concrete immersed tube jar is annotated stake and rams and expand a body structure.The concrete core stake of compound pile also can be adopted the dried concrete filling pile that fetches earth of long spiral.The diameter of the cement earth pile of compound pile is 500～800mm.
The utility model beneficial effect compared with prior art is: the concrete core pile length of this compound pile is greater than cement earth pile length, reasonable length by the control cement earth pile, make concrete core stake stake end enter hard soil layer certain depth, so not only can guarantee giving full play to of cement earth pile face side resistance and concrete core stake end resistance, but also improved bearing capacity of single pile, reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model compound pile;
Fig. 2 is the structural representation that adopts the compound pile of joint core stake on the wedge shape in the utility model;
Fig. 3 is that the utility model has the structural representation that the stake end rams the compound pile that expands body.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 shows the utility model and is made up of stake 1 of concrete core and cement earth pile 2, and the diameter of cement earth pile 2 is 500～800mm, preferably adopts 500～700mm.According to deep water earth stake 2 soil cement intensities and rigidity rule along depth profile, factors such as consideration economic indicator, technical condition and requirement of engineering are determined the reasonable length of cement earth pile 2, general degree of depth difference according to weak soil layer 5, the length of cement earth pile 2 is 10～20m, preferentially selects 12～15m for use.The stake of concrete core stake 1 is grown up long in the stake of concrete stake 2, and the length of concrete core stake 1 is 5～40m, is preferably 12～25m; In order to give full play to the end resistance of concrete core stake 1, concrete core stake stake end 3 should enter hard soil layer 4 500mm at least.The concrete preformed pile is adopted in concrete core stake 1, and cross sectional shape can adopt square or square hollow, and its length of side is 200～400mm, preferably adopts 250～300mm; The cross sectional shape of concrete preformed pile also can adopt circle or annular, and its external diameter is 250～500mm, preferably 300～400mm.Concrete core stake 1 also can be adopted immersed tube or the dried concrete filling pile structure that fetches earth of long spiral in addition.
Fig. 2 shows when the concrete preformed pile is adopted in concrete core stake 1, adopts the multi-section structure that is no more than 4 joints usually, and every joint is 3～9m; In order to strengthen the interface frictional resistance of its concrete core stake 1 and cement earth pile 2, wedge shapes are adopted in the joint core stake 6 of going up of concrete preformed pile, and the stakes of uniform section core are adopted in following joint core stake 7, core pile joint 8 employing welded constructions.
Fig. 3 shows when the stake of concrete immersed tube jar notes is adopted in concrete core stake 1, and the diameter of concrete core stake 1 is 300～500mm, in order to obtain higher economic indicator, is provided with the stake end in the end of concrete core stake 1 and rams expansion body 3 structures.
Claims (9)
1. a long-core cement-soil compound pile is made up of stake of concrete core and cement earth pile, it is characterized in that described concrete core stake stake grows up longly in the cement earth pile stake, and concrete core stake stake is long to be 5～40m.
2. compound pile according to claim 1 is characterized in that the long 12～25m of being of described concrete core stake stake.
3. compound pile according to claim 1 is characterized in that described concrete core stake employing concrete preformed pile, and the cross section is square or square hollow, and the length of side is 200～400mm.
4. compound pile according to claim 1 is characterized in that described concrete core stake employing concrete preformed pile, and the cross section is circular or annular, and external diameter is 250～500mm.
5. according to claim 3 or 4 described compound piles, it is characterized in that wedge shape is adopted in the joint core stake of going up of described concrete core stake.
6. compound pile according to claim 1 is characterized in that the stake of described concrete core stake employing concrete immersed tube jar notes, and diameter is 300～500mm.
7. compound pile according to claim 6 is characterized in that the stake of described concrete core is provided with the stake end and rams the expansion body structure.
8. compound pile according to claim 1 is characterized in that the dried concrete filling pile that fetches earth of the described concrete core stake long spiral of employing.
9. compound pile according to claim 1, the diameter that it is characterized in that described cement earth pile is 500～800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258951 CN2509232Y (en) | 2001-08-31 | 2001-08-31 | Long-corn cement soil combined piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01258951 CN2509232Y (en) | 2001-08-31 | 2001-08-31 | Long-corn cement soil combined piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2509232Y true CN2509232Y (en) | 2002-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01258951 Expired - Fee Related CN2509232Y (en) | 2001-08-31 | 2001-08-31 | Long-corn cement soil combined piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2509232Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929110A (en) * | 2015-05-20 | 2015-09-23 | 孙文 | Novel variable stiffness composite pile, construction method of novel variable stiffness composite pile, and long spiral drilling machine adopted in construction method |
| CN104929109A (en) * | 2015-05-20 | 2015-09-23 | 骆嘉成 | Replaceable press-grouted cement soil composite pile, construction method of replaceable press-grouted cement soil composite pile and long twist drill employed in construction method |
| CN105604001A (en) * | 2016-01-11 | 2016-05-25 | 王庆伟 | Stiffening core cement-soil tubular pile, construction method and cylindrical rotary stirring drilling tool |
| CN106013132A (en) * | 2016-05-23 | 2016-10-12 | 王继忠 | Diameter-varied composite pile |
| CN106284329A (en) * | 2016-10-18 | 2017-01-04 | 上海强劲地基工程股份有限公司 | A kind of stiff composite pile of abnormity |
| CN108179753A (en) * | 2017-12-28 | 2018-06-19 | 安徽新瑞重工股份有限公司 | A kind of construction method of bottom bridge pile foundation |
| CN108221972A (en) * | 2018-03-12 | 2018-06-29 | 四川省建筑科学研究院 | A kind of built pile and its construction method and vertical bearing capacity of single pile computational methods |
| CN114541457A (en) * | 2022-03-09 | 2022-05-27 | 华能陕西靖边电力有限公司 | Pile foundation for photovoltaic support |
-
2001
- 2001-08-31 CN CN 01258951 patent/CN2509232Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929110A (en) * | 2015-05-20 | 2015-09-23 | 孙文 | Novel variable stiffness composite pile, construction method of novel variable stiffness composite pile, and long spiral drilling machine adopted in construction method |
| CN104929109A (en) * | 2015-05-20 | 2015-09-23 | 骆嘉成 | Replaceable press-grouted cement soil composite pile, construction method of replaceable press-grouted cement soil composite pile and long twist drill employed in construction method |
| CN105604001A (en) * | 2016-01-11 | 2016-05-25 | 王庆伟 | Stiffening core cement-soil tubular pile, construction method and cylindrical rotary stirring drilling tool |
| CN106013132A (en) * | 2016-05-23 | 2016-10-12 | 王继忠 | Diameter-varied composite pile |
| CN106013132B (en) * | 2016-05-23 | 2018-06-08 | 王继忠 | A kind of reducing built pile |
| CN106284329A (en) * | 2016-10-18 | 2017-01-04 | 上海强劲地基工程股份有限公司 | A kind of stiff composite pile of abnormity |
| CN108179753A (en) * | 2017-12-28 | 2018-06-19 | 安徽新瑞重工股份有限公司 | A kind of construction method of bottom bridge pile foundation |
| CN108221972A (en) * | 2018-03-12 | 2018-06-29 | 四川省建筑科学研究院 | A kind of built pile and its construction method and vertical bearing capacity of single pile computational methods |
| CN114541457A (en) * | 2022-03-09 | 2022-05-27 | 华能陕西靖边电力有限公司 | Pile foundation for photovoltaic support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |