CN2858773Y - Base type foundation and anchor - Google Patents
Base type foundation and anchor Download PDFInfo
- Publication number
- CN2858773Y CN2858773Y CN 200620069139 CN200620069139U CN2858773Y CN 2858773 Y CN2858773 Y CN 2858773Y CN 200620069139 CN200620069139 CN 200620069139 CN 200620069139 U CN200620069139 U CN 200620069139U CN 2858773 Y CN2858773 Y CN 2858773Y
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- anchor
- anchor tube
- anchorage
- construction
- cushion cap
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Abstract
Base type foundation and anchor characterises that it has a flat shape bearing platform, which bottom bearing an anchor pipe in T-shape, on which side wall, a base key protruding from the outwall of the anchor pipe is provided along radial direction of the anchor pipe which the bottom is in turn provided with a back cover formed by concrete. The utility model can greatly optimizing the structure of the foundation and anchor and largely increase friction force by the base type structure. The structure stabilisation is increased by bonding stress of the base key from soil mass to provide possibility for reducing the structure weight, thus, has advantages of better economical efficiency, simple process, shortcut construction, safety and reliability.
Description
Technical field:
The utility model relates to that civil engineering, bridge room are built, basis and anchorage in the hydro-structure.
Background technology:
Traditional anchorage mainly contains form of structure such as large-scale well-sinking and diaphragm wall, construction freezing method basis, campshed supporting construction method basis.
Large-scale well-sinking is gravity and the reaction force of the surrounding soil pulling force that comes the balance drag-line that relies on self.Its shortcoming is that key dimension is big, it is dark to sink, and separates a lot, and difficulty of construction is big, and open caisson easily is offset during construction, the correction difficulty, and the basis will produce depression, the construction costs height.
The diaphragm wall Anchor Foundation is to build up cofferdam structure earlier, as the usefulness of interim support, retaining soil, dash, and is the part of later stage permanent structure.Concrete is filled out core, and integral rigidity is big, open-cut.Body of wall adopts rigid joint, has increased the complexity of construction; Continuous wall trench need adopt mud off, destroyed the frictional force between the body of wall and the soil body, has reduced the safety stock that anchorage bears horizontal force; At sandy soil layer construction diaphragm wall, grooving technology has greater risk.
The construction freezing method basis is compared with the diaphragm wall Anchor Foundation, the frost wall that it produces as the interim cooling of supporting, keep off the time spent of soil, dash.This scheme is used for bridge foundation, and especially the experience of large foundation construction is few, and the water in the construction freezes, melts and must further do sufficient demonstration to native disturbance; And the concrete stake that is used as interim support usefulness does not promptly have structural effect after finishing construction, unfavorable to economy.
The supporting measure on campshed supporting construction method basis encloses the campshed supporting, and drilled pile construction is conventional base form.The shortcoming of this scheme be requirement to geological conditions than higher, the collapse verticality of hole phenomenon and stake of migrating during drilling construction is wanted strict control, has the risk of leaking during the foundation ditch open-cut.
Summary of the invention:
The utility model is for avoiding above-mentioned existing in prior technology weak point, provide that a kind of technology is simple, consumption just less, quick construction, safe and reliable radical basis and anchorage.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model radical basis and anchorage, its design feature is to have the tabular cushion cap, be the "T"-shaped anchor tube of accepting in the bottom of described tabular cushion cap, on the sidewall of described anchor tube, be the root key that protrudes from the anchor tube outer wall that radially is provided with along anchor tube, the bottom of anchor tube is the back cover that forms with concrete.
The utility model radical basis and anchorage, its design feature are that also the described anchor tube that is undertaken on tabular cushion cap bottom is that single anchor tube independently is provided with or the setting of many anchor tube parallel interval.
The construction of the utility model radical basis and anchorage is carried out as follows:
A, anchor tube are with the segmented open caisson that is prefabricated into of concrete, radially reserve the root keyhole that can insert the root key on the open caisson wall, afterwards open caisson utilization deadweight are sunk to burying, and the bottom general rock and promptly stops to sink;
B, in open caisson, carry out at the end clearly, form back cover with concrete.
C, prefabricated bar-shaped concrete root key insert the root keyhole with the root key, and utilize the mode of pushing tow that the root key is headed in the soil layer in open caisson;
D, binding at the open caisson surface layer forms the tabular cushion cap, with the cushion cap of tabular cushion cap as the pier shaft basis.
Anchorage satisfies the structural stability condition two: anchorage gravity and native side-friction force can balance external force, the substrate soil pressure is less than the permissible stress of soil.Anchorage structure gravity is big more, and then the stabilizing power of external force is strong more, and the anchorage structure is light more, the then easy more restriction of satisfying the substrate-loading ability.Exist the relation that conditions each other between these two stability conditions.So, find reasonable structure form for the anchorage structure, obtain the best joint between structure gravity and the substrate-loading ability, increase the coupling of the structure and the soil body, just can make structural optimization.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the utility model makes basis and anchorage structure obtain great optimization, by adopting the radical structure, has greatly strengthened frictional force.
2, the utility model utilizes the soil body that the bond stress of root key has been increased stability of structure, provides possibility for reducing structure gravity, thereby has had better economy.
3, simple, the quick construction, safe and reliable of the utility model radical basis and anchorage technology.
4, form of structure of the present utility model and job practices can be widely used in bearing in the hydro-structures such as bridge the occasion of horizontal pull and vertical pressure combining ability, also can be generalized to the basis of corresponding large scale structure.
Description of drawings:
Fig. 1 is the utility model radical basis and anchorage vertical section structure schematic diagram.
Fig. 2 is the utility model radical basis and anchorage cross section structure schematic diagram.
Number in the figure: 1 tabular cushion cap, 2 anchor tubes, 3 back covers, 4 keys.
Referring to Fig. 1, Fig. 2, present embodiment has tabular cushion cap 1, is the "T"-shaped anchor tube 2 of accepting in the bottom of tabular cushion cap 1, on the sidewall of anchor tube 2, be the root key 4 that protrudes from anchor tube outer wall 2 that radially is provided with along anchor tube 2, the bottom of anchor tube 2 is the back covers 3 that form with concrete.
In concrete the enforcement, because of the difference of place geological conditions, each use occasion has different requirements, and the anchor tube 2 that is undertaken on tabular cushion cap 1 bottom can independently be provided with for single anchor tube, promptly single anchor tube structure.Also can be the setting of many anchor tube parallel interval to be arranged in the bottom of same tabular root key 1.
Concrete enforcement is constructed as follows:
A, anchor tube 2 are with the segmented open caisson that is prefabricated into of concrete, radially reserve the root keyhole that can insert root key 4 on the open caisson wall, afterwards open caisson utilization deadweight are sunk to burying, and the bottom general rock and promptly stops to sink;
B, in open caisson, carry out at the end clearly, form back cover 3 with concrete.
C, prefabricated bar-shaped concrete root key 4 insert root key 4 in the root keyhole in open caisson, and utilize the mode of pushing tow that root key 4 is headed in the soil layer;
D, binding at the open caisson surface layer forms tabular cushion cap 1, with the cushion cap of tabular cushion cap 1 as the pier shaft basis.
Claims (2)
1, radical basis and anchorage, it is characterized in that having tabular cushion cap (1), be the "T"-shaped anchor tube (2) of accepting in the bottom of described tabular cushion cap (1), on the sidewall of described anchor tube (2), be the root key (4) that protrudes from the anchor tube outer wall that radially is provided with along anchor tube (2), the bottom of anchor tube (2) is the back cover (3) that forms with concrete.
2, radical basis according to claim 1 and anchorage is characterized in that the described anchor tube (2) that is undertaken on tabular cushion cap (1) bottom independently is provided with for single anchor tube or many anchor tube parallel interval are provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069139 CN2858773Y (en) | 2006-01-26 | 2006-01-26 | Base type foundation and anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069139 CN2858773Y (en) | 2006-01-26 | 2006-01-26 | Base type foundation and anchor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2858773Y true CN2858773Y (en) | 2007-01-17 |
Family
ID=37611631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620069139 Expired - Lifetime CN2858773Y (en) | 2006-01-26 | 2006-01-26 | Base type foundation and anchor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2858773Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523390C (en) * | 2006-01-26 | 2009-08-05 | 安徽省高速公路总公司 | Root type foundation and anchorage and construction method thereof |
| CN101311421B (en) * | 2006-01-26 | 2010-12-22 | 安徽省高速公路总公司 | Radical anchorage and construction method thereof |
-
2006
- 2006-01-26 CN CN 200620069139 patent/CN2858773Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100523390C (en) * | 2006-01-26 | 2009-08-05 | 安徽省高速公路总公司 | Root type foundation and anchorage and construction method thereof |
| CN101311421B (en) * | 2006-01-26 | 2010-12-22 | 安徽省高速公路总公司 | Radical anchorage and construction method thereof |
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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 |
Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |