CN202247856U - Earth borrowing annular pile for foundation treatment and underground foundation - Google Patents
Earth borrowing annular pile for foundation treatment and underground foundation Download PDFInfo
- Publication number
- CN202247856U CN202247856U CN2011203382368U CN201120338236U CN202247856U CN 202247856 U CN202247856 U CN 202247856U CN 2011203382368 U CN2011203382368 U CN 2011203382368U CN 201120338236 U CN201120338236 U CN 201120338236U CN 202247856 U CN202247856 U CN 202247856U
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Abstract
The utility model relates to an earth borrowing annular pile for foundation treatment and an underground foundation using same. The earth borrowing annular pile is suitable for foundation treatment engineering of a highway and a dock storage yard of soft soil foundation. The annular pile comprises a concrete or reinforced concrete annular pile body with an annular concrete top cover, wherein the annular pile body has a diameter of 800-3000cm and a wall thickness of 10-30cm; the inner cavity of the pile body includes air or/and water taking up above 20% the volume of the inner cavity; and the bottom of the pile body is provided with an annular reinforced concrete pile tip. The underground foundation comprises a plurality of annular pile bodies arranged at certain intervals, wherein the upper parts of the plurality of annular pile bodies are covered with reinforced concrete panels which are integrally formed by pouring.
Description
Technical field
The utility model relates to the building foundation field, relates in particular to a kind of ground and handles with fetching earth annulus stake and adopt the underground foundation of this annulus stake.
Background technology
In China coastal cities, blazoning soft foundation, in soft foundation, weak soil is stream and moulds shape or plastic shape, high-compressibility, water content (ω
0) 60-80, bad hydraulic permeability.On this type ground, build pier storage yard, speedway, its ground must be handled.At present, widely used is methods such as broken stone pile, cement mixing pile, cement rotary churning pile, vacuum preloading, and its disadvantage is that settlement amount after construction can reach tens of centimetres, brings inconvenience to using behind the worker.
Summary of the invention
The utility model technical problem to be solved is: provide a kind of ground to handle with the annulus stake of fetching earth; It can guarantee in phreatic soft foundation is arranged, and under the situation that drops into identical pile foundation material, reaches and economizes on resources; Reduce investment, the energy-saving effect of efficient output.
The technical scheme that the utility model adopted is: a kind of ground is handled with the annulus stake of fetching earth; Comprise the concrete with ring-type concrete top cover or the ring-type pile body of steel concrete; The diameter of said ring-type pile body is 800-3000cm; Wall thickness 10-30cm contains in the pile body inner chamber and accounts for the air of cavity volume more than 20% or/and water, and the pile body bottom is provided with ring-type reinforced concrete pile point.Preferred version is: contain in the said pile body inner chamber account for cavity volume 80-90% air or/and water.
The utility model further technology side by case is: a kind of underground foundation that adopts above-mentioned annulus stake is provided; This underground foundation comprises a plurality of aforesaid ring-type pile bodies of arranging by certain intervals, and the top of a plurality of ring-type pile bodies covers the steel concrete panel of whole pouring.
The beneficial effect that the utlity model has: owing to only contain few soil plug in the ring-type pile body inner chamber; Major part is air or water; Thereby the immense pressure that forms the inside and outside native unit weight of ring-type pile body is poor; And because the bearing stratum that the sharp own entering of stake is moulded firmly avoids excessive because of pile lining external and internal pressure difference, weak soil is clamp-oned in the ring-type pile body from the stake point again.Compared with prior art, have easy construction, the duration is short, and cost is low, and the pile foundation material of equivalent improves bearing capacity 30-40%, beneficial effects such as settlement after construction ﹤ 5cm.Be applicable to the pier storage yard of soft foundation, the foundation treatment engineering of speedway.
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
Description of drawings
Fig. 1 adopts the fetch earth sketch map of underground foundation embodiment of annulus stake of the utility model.
Drawing explanation: 1. panel, 2. cover plate, 3. ring-type pile body, 4. miscellaneous fill layer, 5. groundwater table, 6. mud, 7. bearing stratum, 8. a point, 9. soil plug, 10. pile body inner chamber.
The specific embodiment
As shown in Figure 1; The present embodiment underground foundation comprises a plurality of concrete of arranging by certain intervals with ring-type concrete top cover 2 or the ring-type pile body 3 of steel concrete, and the diameter of each ring-type pile body 3 is 800-3000cm; Wall thickness 10-30cm; Contain the air that accounts for cavity volume more than 20% in the pile body inner chamber 10 or/and water, contain air that 80-90% accounts for cavity volume in the present embodiment pile body inner chamber or/and water, to have more high-bearing capacity; The pile body bottom is provided with ring-type reinforced concrete pile point 8; The top of a plurality of ring-type pile bodies 3 covers the steel concrete panel 1 of whole pouring.Certainly the air in the inner chamber 10 is or/and the content of water is high more good more, and promptly the weak soil of inner chamber 10 is few more good more, makes the inside and outside native unit weight of ring-type pile body form bigger pressure differential.
The job practices of above-mentioned underground foundation comprises following construction sequence successively:
(A), make ring-type stake point 8 and maintenance;
(B), the ring-type stake point 8 that will reach intensity is placed on the stake position, and entangle firm with ring-type stake sharp 8 by the sling inside and outside steel casing of a machine of stake machine;
(C), act on the steel casing, be depressed into design elevation to ring-type stake point 8 with the exciting hammer of stake machine;
(D), when ring-type pile body 3 is designed to steel concrete, the reinforcing cage of slinging is put between two steel casings slowly;
(E), pour into a mouthful continuous penetration concrete, and exciting limit, limit carries pipe and placing of concrete to design elevation, goes round and begins again, and accomplishes the construction of all ring-type pile bodies 3 from the concrete of steel casing;
(F), treat that each ring-type pile body 3 intensity reaches after; With existing rotary drilling rig or punching and grabbing machine or the artificial weak soil that cuts out the inner chamber 10 of ring-type pile body 3; Until the soil plug 9 of bearing stratum soil 7, make and contain a large amount of air in the inner chamber 10 of ring-type pile body 3 or/and water, preferably contain air that 80-90% accounts for cavity volume or/and water; Certainly the weak soil of inner chamber 10 is few more good more, makes the inside and outside native unit weight of ring-type pile body form bigger pressure differential;
(G), at each ring-type pile body upper flap upper plate 2, and continuous pouring steel concrete panel 1 seals;
(H), maintenance panel concrete 1, till it reaches design strength.
Claims (3)
1. a ground is handled with the annulus stake of fetching earth; It is characterized in that: comprise the concrete with concrete top cover (2) or the ring-type pile body (3) of steel concrete; The diameter of said ring-type pile body (3) is 800-300cm; Wall thickness 10-30cm contains in the pile body inner chamber (10) and accounts for the air of cavity volume more than 20% or/and water, and the pile body bottom is provided with ring-type reinforced concrete pile point (8).
2. ground according to claim 1 is handled with the annulus stake of fetching earth, and it is characterized in that: contain in the said pile body inner chamber (10) account for cavity volume 80-90% air or/and water.
3. a underground foundation is characterized in that: comprise a plurality of ring-type pile bodies of arranging by a determining deviation (3) according to claim 1 or claim 2, the steel concrete panel (1) of the whole pouring of top covering of a plurality of ring-type pile bodies (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203382368U CN202247856U (en) | 2011-09-09 | 2011-09-09 | Earth borrowing annular pile for foundation treatment and underground foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203382368U CN202247856U (en) | 2011-09-09 | 2011-09-09 | Earth borrowing annular pile for foundation treatment and underground foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202247856U true CN202247856U (en) | 2012-05-30 |
Family
ID=46109118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203382368U Expired - Fee Related CN202247856U (en) | 2011-09-09 | 2011-09-09 | Earth borrowing annular pile for foundation treatment and underground foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202247856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619216A (en) * | 2011-09-09 | 2012-08-01 | 温州长城基础工程公司 | Earth fetching ring pile for treating foundation and construction method of foundation |
| CN103510524A (en) * | 2012-06-26 | 2014-01-15 | 邹宗煊 | Inclined circular annular pile and construction method thereof |
-
2011
- 2011-09-09 CN CN2011203382368U patent/CN202247856U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619216A (en) * | 2011-09-09 | 2012-08-01 | 温州长城基础工程公司 | Earth fetching ring pile for treating foundation and construction method of foundation |
| CN103510524A (en) * | 2012-06-26 | 2014-01-15 | 邹宗煊 | Inclined circular annular pile and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140909 |
|
| EXPY | Termination of patent right or utility model |