CN2878518Y - Stress releasing cage - Google Patents
Stress releasing cage Download PDFInfo
- Publication number
- CN2878518Y CN2878518Y CN 200620040943 CN200620040943U CN2878518Y CN 2878518 Y CN2878518 Y CN 2878518Y CN 200620040943 CN200620040943 CN 200620040943 CN 200620040943 U CN200620040943 U CN 200620040943U CN 2878518 Y CN2878518 Y CN 2878518Y
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- construction
- cage
- soil
- stress release
- column
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Abstract
The utility model relates to a stress release cage, which belongs to the category of fixed structures and is a construction equipment used in the building foundation construction. The stress release cage is characterized of a column consisting of a number of horizontal and vertical reinforcements, and the braid is wound at the exterior side of the column in which the transverse reinforcement can be made in circle or spiral fashion. Compared with the existing technology, the adoption of this stress release cage in the building foundation construction, due to the appropriate degree of rigidity and plasticity of the stress release cage, can bear the soil deformation induced after the pile penetrates into earth. The braid wound outside the stress release cage is with water permeability, not only can block the lumpy soil with horizontal displacement, but also dissipate the pore water pressure rapidly, release the compaction stress, and consolidate the disturbance of soil as well. Therefore, the adoption of this technology in the foundation construction of wharf bulkhead, can fully guarantee the stability, construction progress, and construction safety for the wharf with bulkhead and the landside buildings. Also in urban construction, especially in the construction projects around the major traffic artery, the old city district redevelopment, and with dense and complex surrounding buildings, the utility model has the same important significance for the protection of the surrounding buildings and the guarantee of the construction period.
Description
(1) technical field:
The present invention relates to a kind of stress releasing cage, belong to the fixed buildings class, the building appliance of using in the construction of building foundation.
(2) background technology:
In the prior art, when driven pile or static pressed pile are adopted in the fixed buildings basis, the long-pending corresponding soil deformation of pile body that stake can produce around stake and bury when burying.Along with a large amount of bury, a large amount of protuberances of the soil body and displacement meeting produce cracking, destruction, inclination sedimentation to building on every side, and the release of soil body stress and soil disturbance are fixed, need a very long time again, so urgent engineering of duration, this is often felt simply helpless, has to slow down the speed of piling, if by force construction then again can to around building bring dangerous.
(3) summary of the invention:
Purpose of the present invention is to provide a kind of stress releasing cage at the prior art weak point, and it has soil compaction stress and the consolidated earth mass disturbance that quick release piling back produces, and satisfies construction period requirement urgent and that enforcement is protected to the surrounding buildings thing.
Purpose of the present invention, realize by following measure: the special feature of stress releasing cage is its column that is made of some perpendicular muscle, some horizontal bars, and its column outer rim is wound with braid.
Some horizontal bars of column are round shape, are arranged in parallel along the vertical direction of column axis.
Some horizontal bars of column are shape in the shape of a spiral, along the column surface arrangement.
Compared with prior art, adopt stress releasing cage in the construction of building foundation, because stress releasing cage has the rigidity and the flexibility of appropriateness, can bear the soil deformation after stake is buried, its outer braid that twines has water permeability, has both stopped the lumpy soil of horizontal movement, and pore water pressure fast can dissipate again, discharge soil compaction stress, the consolidated earth mass disturbance.Therefore, adopt this technology in the foundation construction of harbour revetment, the stability of harbour revetment and land-based area building, construction speed, construction safety will be protected comprehensively; In addition in urban construction, particularly around the main traffic main artery, the old town is transformed and neighboring buildings is intensive, in the complex engineering, to the protection of surrounding building, guarantee that the construction period has important meaning equally.
(4) description of drawings:
Fig. 1 is the preferred embodiment schematic diagram that the utility model proposes.
Fig. 2 is some horizontal bars shape in the shape of a spiral of column, along the embodiment of column surface arrangement.
(5) specific embodiment:
Below in conjunction with accompanying drawing the specific embodiment is elaborated:
In the preferred embodiments of the present invention shown in Figure 1, pressure discharges cage (3) and is column, it is made up of perpendicular muscle (1) and horizontal bar (2), its horizontal bar (2) is round shape, vertical direction along column (3) axis is arranged in parallel, the available spot welding of connection between perpendicular muscle (1) and the horizontal bar (2), also available steel wire lashing.Discharge at pressure on the whole length of outer rim of cage (3) and be wound with woven cloth (4).
As everyone knows, stake produces soil deformation when burying around stake, and distortion is produced simultaneously has: the tangential frictional resistance between the horizontal compression between stake and the soil and stake and the soil.Horizontal compression causes the protuberance and the horizontal movement of the soil body, and the existence of tangential frictional resistance, is useful to the bearing capacity of stake, and it is very little to the influence of pore water pressure, therefore, can not let alone and can have soil deformation, the horizontal movement of the soil body reduces gradually along the long different depth of stake.Given this, to discharge rigidity and plasticity that cage (3) has appropriateness be necessary to pressure.Rigidity and plasticity that pressure discharges cage (3) are to be adjusted by perpendicular muscle (1) and the diameter and the radical of horizontal bar (2), in the hope of adapting with the job site actual conditions.In addition, in soft foundation, when stake was buried, the horizontal compression between stake and the soil acted on the moment of the soil body, almost all come balance by the increment of pore water pressure, along with the increase of stake embedded depth, excess hydrostatic pressure also increases thereupon, and constantly permeates, transmits to hole, the woven cloth (4) that the outer rim of stress releasing cage (3) is twined has water permeability, the lumpy soil that had both stopped horizontal movement, the pore water pressure that can dissipate rapidly again discharges soil compaction stress.We know, continue a large amount of protuberances and horizontal movement that long-term pore water pressure has caused the soil body, and existing because pore water pressure is dredged, dissipated, corresponding soil deformation also is under control.
Horizontal bar (2) is shape (6) in the shape of a spiral also, and arranges along the surperficial spiral colligation of stress releasing cage (3), mainly is in order to obtain stress releasing cage (3) different rigidity and plasticity.
In engineering practice, between multi-column pier foundation and other building, several holes is bored in selected earlier appropriate position, in each hole, place then and the imitative stress releasing cage of stake appearance, owing to reasonably arranged the position in hole, controlled soil body protuberance and displacement effectively, found no ground cracking, slip sign, building all around is safe and sound.Bearing capacity to stake detects, and shows that bearing capacity of pile foundation is not affected.Have a large amount of water in the degree of stress releasing cage extrusion and cage, dredging, dissipating of excess hydrostatic pressure is conspicuous, fully Guaranteed.
Claims (3)
1. a stress releasing cage is characterized in that it by the column (3) that some perpendicular muscle (1) and some horizontal bars (2) constitute, and its column (3) outer rim is wound with braid (4).
2. stress releasing cage according to claim 1, the some horizontal bars (2) that it is characterized in that described column (3) are round shape (5) and are arranged in parallel along the vertical direction of column (3) axis.
3. stress releasing cage according to claim 1, the some horizontal bars (2) that it is characterized in that described column (3) are shape (6) in the shape of a spiral, along column (3) surface arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040943 CN2878518Y (en) | 2006-04-11 | 2006-04-11 | Stress releasing cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620040943 CN2878518Y (en) | 2006-04-11 | 2006-04-11 | Stress releasing cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878518Y true CN2878518Y (en) | 2007-03-14 |
Family
ID=37860933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620040943 Expired - Lifetime CN2878518Y (en) | 2006-04-11 | 2006-04-11 | Stress releasing cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878518Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593053C (en) * | 2007-09-04 | 2010-03-03 | 上海中交水运设计研究有限公司 | Stress releasing cage and method of use thereof |
| CN101775816A (en) * | 2010-02-10 | 2010-07-14 | 上海智平基础工程有限公司 | Pile pressing protective construction method capable of recovering well cage |
| CN102505689A (en) * | 2011-10-08 | 2012-06-20 | 东莞市桦业土木基础工程有限公司 | Pile-group construction method of PHC (pre-stressed high-strength concrete) tubular piles for preventing soil compaction effect |
| CN113914331A (en) * | 2021-10-26 | 2022-01-11 | 中冶天工集团有限公司 | Silt geological pile stress relief hole supporting construction |
-
2006
- 2006-04-11 CN CN 200620040943 patent/CN2878518Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100593053C (en) * | 2007-09-04 | 2010-03-03 | 上海中交水运设计研究有限公司 | Stress releasing cage and method of use thereof |
| CN101775816A (en) * | 2010-02-10 | 2010-07-14 | 上海智平基础工程有限公司 | Pile pressing protective construction method capable of recovering well cage |
| CN102505689A (en) * | 2011-10-08 | 2012-06-20 | 东莞市桦业土木基础工程有限公司 | Pile-group construction method of PHC (pre-stressed high-strength concrete) tubular piles for preventing soil compaction effect |
| CN113914331A (en) * | 2021-10-26 | 2022-01-11 | 中冶天工集团有限公司 | Silt geological pile stress relief hole supporting construction |
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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: 20070314 |
|
| EXPY | Termination of patent right or utility model |