CN102677679A - Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits - Google Patents
Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits Download PDFInfo
- Publication number
- CN102677679A CN102677679A CN2011100530324A CN201110053032A CN102677679A CN 102677679 A CN102677679 A CN 102677679A CN 2011100530324 A CN2011100530324 A CN 2011100530324A CN 201110053032 A CN201110053032 A CN 201110053032A CN 102677679 A CN102677679 A CN 102677679A
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- Prior art keywords
- cement
- soil
- concrete pile
- diaphragm wall
- cast
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- 239000002689 soil Substances 0.000 title claims abstract description 25
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 title abstract description 10
- 238000011065 in-situ storage Methods 0.000 title abstract description 4
- 239000004567 concrete Substances 0.000 claims abstract description 14
- 239000004568 cement Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 238000004080 punching Methods 0.000 description 3
- 210000003205 Muscles Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000003014 reinforcing Effects 0.000 description 1
Abstract
A cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits is characterized in that in double-shaft or three-shaft cement-soil diaphragm wall, the cast-in-situ special-shaped reinforced concrete pile cores are arranged at intervals ranging from 0.8m to 3m; the cement-soil diaphragm wall is formed by cement mixing piles with diameters ranging from 0.5m to 1.5m in a crossed and parallel manner; and the sections of the reinforced concrete pile cores can be H-shaped, T-shaped, square, rectangular or oval. Compared with the prior art, the cement-soil diaphragm wall has the advantages that construction process is simple, bending resistance of each concrete unit is high, steel usage amount is saved, manufacturing cost of support construction of the foundation pits is low, water stoppage and infiltration prevention effect of cement soil is fine.
Description
Technical field
The present invention relates to building engineering field, relate in particular to building foundation pit supporting with cast-in-place deformed bar concrete pile core cement-soil diaphragm wall.
Background technology
At present, in the urban construction of the coastal soft foundation of China, the degree of depth adopts the drill-pouring pile as fender post at the pattern foundation pit supporting structure of 8-15m more; Or insert i iron in the cement-soil water-stop curtain of introduction Japan; Promptly logically be referred to as SMW worker's method, this two schemes rolled steel dosage is big, and construction costs is high.
Summary of the invention
The object of the present invention is to provide a kind of building foundation pit supporting with cast-in-place deformed bar concrete pile core cement-soil diaphragm wall; The rolled steel dosage of using than existing conventional pattern foundation pit supporting structure scheme reduces 20-30%; The support engineering cost reduces 20-25%, can also save the higher interior support of supporting expense.
The objective of the invention is to realize through following technical scheme: building foundation pit supporting is with cast-in-place deformed bar concrete pile core cement-soil diaphragm wall; It is characterized in that; In twin shaft or triaxial cement diaphragm wall; Be provided with cast-in-place deformed bar concrete pile core by spacing 0.8-3m, cement-earth underground continuous wall is that the cement mixing pile of diameter 0.5-1.5m intersects arranged side by side the composition, and reinforced concrete pile core cross section is I shape or T font or Back Word type or rectangle or oblate type.Stake core cross section shapes, specification and stake core, the cement soil continuous wall degree of depth are looked foundation depth and soil property decision, the wide 0.6-2m of general stake core, the thick 0.15-0.8m of stake core, stake core length 8-25m, cement mixing method length 12-30m.
The present invention compared with prior art has following remarkable advantage: building foundation pit supporting is with cast-in-place deformed bar concrete pile core cement-soil diaphragm wall, and it is simple to have construction technology; It is high that the unit concrete produces resistance to bending, and rolled steel dosage is economized, and the foundation pit supporting project cost is lower; The cement-soil stagnant water effect is because of needing in the construction that the concrete pile cores is inserted cement-soil; When placing of concrete, the tube edge vibration is proposed on the limit, makes cement-soil further stir, push; Cement and soil stir close better, more even, anti-seepage effect is just better.
Description of drawings
Fig. 1 is a generalized section of the present invention.
Among the figure: 1. miscellaneous fill, 2. sprayed mortar, 3. soil nailing, 4. concrete Guan Liang, 5. churning anchoring pile, 6. cement-soil, 7. reinforced concrete pile core, 8. mud, 9. foundation ditch, 10. absolute altitude.
Fig. 2 is a cross sectional representation of the present invention.
Among the figure: 1. cement-soil, 2. reinforced concrete pile core, 3 main muscle, 4. stirrups.
Fig. 3 is a stake core form cross sectional representation of the present invention.
Among the figure: 1. cement-soil, 2. reinforced concrete pile core, 3 main muscle, 4. stirrups.
The specific embodiment
An exemplary embodiments of the present invention such as Fig. 1 before building foundation pit excavates, press design drawing position construction cement mixing method (6) diaphragm wall (like 1 among Fig. 2) by the triaxial cement mixing pile machine on the foundation ditch building site; Simultaneously, the vibrator sunk pile machine then shakes into the I shape punching block in cement-soil (6) with vibrating hammer by designing requirement, and punching block length specification looks the excavation of foundation pit degree of depth and soil property is confirmed; Punching block shakes to design elevation, puts into reinforcing cage, again cast-in-situ concrete; Pipe is carried in vibration while watering; Promptly accomplish pile core construction, go round and begin again, accomplish all reinforced concrete pile core constructions.
Claims (1)
1. building foundation pit supporting is with cast-in-place deformed bar concrete pile core cement-soil diaphragm wall; It is characterized in that; In twin shaft or triaxial cement diaphragm wall; Be provided with cast-in-place deformed bar concrete pile core by spacing 0.8-3m, cement-earth underground continuous wall is that the cement mixing pile of diameter 0.5-1.5m intersects arranged side by side the composition, and reinforced concrete pile core cross section is I shape or T font or Back Word type or rectangle or oblate type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100530324A CN102677679A (en) | 2011-03-07 | 2011-03-07 | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100530324A CN102677679A (en) | 2011-03-07 | 2011-03-07 | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102677679A true CN102677679A (en) | 2012-09-19 |
Family
ID=46810198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100530324A Pending CN102677679A (en) | 2011-03-07 | 2011-03-07 | Cement-soil diaphragm wall with cast-in-situ special-shaped reinforced concrete pile cores for construction of foundation pits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102677679A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410156A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recyclable vertical steel tube front supporting envelop enclosure and applying method thereof |
| CN105951743A (en) * | 2016-06-07 | 2016-09-21 | 深圳市宏业基基础工程有限公司 | Plum blossom-shaped profile steel cement stirring wall |
| CN105951761A (en) * | 2016-06-07 | 2016-09-21 | 深圳市宏业基基础工程有限公司 | Construction method of plum blossom-shaped profile steel cement stirring wall |
-
2011
- 2011-03-07 CN CN2011100530324A patent/CN102677679A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410156A (en) * | 2013-08-28 | 2013-11-27 | 上海岩土工程勘察设计研究院有限公司 | Recyclable vertical steel tube front supporting envelop enclosure and applying method thereof |
| CN103410156B (en) * | 2013-08-28 | 2016-01-27 | 上海岩土工程勘察设计研究院有限公司 | Support space enclosing structure and application process thereof before a kind of recyclable vertical type steel pipe |
| CN105951743A (en) * | 2016-06-07 | 2016-09-21 | 深圳市宏业基基础工程有限公司 | Plum blossom-shaped profile steel cement stirring wall |
| CN105951761A (en) * | 2016-06-07 | 2016-09-21 | 深圳市宏业基基础工程有限公司 | Construction method of plum blossom-shaped profile steel cement stirring wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |