CN202273233U - Deep foundation pit of three-dimensional garage - Google Patents
Deep foundation pit of three-dimensional garage Download PDFInfo
- Publication number
- CN202273233U CN202273233U CN2011203797370U CN201120379737U CN202273233U CN 202273233 U CN202273233 U CN 202273233U CN 2011203797370 U CN2011203797370 U CN 2011203797370U CN 201120379737 U CN201120379737 U CN 201120379737U CN 202273233 U CN202273233 U CN 202273233U
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- deep foundation
- foundation ditch
- pile
- foundation pit
- construction
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Abstract
The utility model belongs to the technical field of deep foundation pits of underground three-dimensional garages. A deep foundation pit of a three-dimensional garage is characterized by mainly consisting of an inner support system, capping beams in the horizontal direction and purlin beams, wherein the inner support system is formed by bored concrete piles in vertical direction in rows. Detachable trestle plates ate erected among the purlin beams, and water stopping curtains formed by high-pressure rotary jet grouting piles are arranged on the peripheries of the bored concrete piles. The deep foundation pit of the three-dimensional garage is specially suitable for re-construction of underground three-dimensional garages in basement structures of high-rise above-ground buildings, the problem that construction of the deep foundation pit of the three-dimensional garage cannot be performed safely and effectively in the prior art is solved, and the deep foundation pit doe not need a tower crane occupied a large area in the construction process and has the advantages of being safe, reliable and the like.
Description
Technical field
The utility model belongs to deep foundation pit technology field, underground stereo garage.
Background technology
In modern times in the underground garage building practice of construction; Often receive the ambient conditions restriction of construction plant; Like multi-storied garage foundation ditch and superstructure foundation pile or environment water hypotelorism; Be all place that road etc. can't take etc. all around, particularly the building frame structure has been tied the top on the ground, carry at it to carry out the underground garage construction in basement structure again and become the difficult problem that industry is generally acknowledged.
Summary of the invention
For solving the construction difficult problem that in little place, carries out the multi-storied garage deep foundation ditch, the utility model provides a kind of multi-storied garage deep foundation ditch, and its technology path is following:
A kind of multi-storied garage deep foundation ditch; The capping beam that it is characterized in that interior support system that said multi-storied garage deep foundation ditch is mainly formed by the castinplace pile campshed of vertical direction and horizontal direction with enclose the purlin beam and form; Said enclosing set up detachable trestle plate between the purlin beam, said castinplace pile periphery is provided with the water-stop curtain that high-pressure rotary jet grouting pile forms.
Said castinplace pile periphery is provided with the pore-creating filling pile water-stop curtain that rotary churning pile forms that adds high pressure.
Said interior support system comprises to be located at the outer castinplace pile campshed of deep foundation ditch exterior wall and to be located at the outer stand column pile within the walls of deep foundation ditch.
This deep foundation ditch is spliced and combined by some identical space modules and forms, and can be spliced into necessary requirement as required, like matrix form etc.
The effect of said detachable trestle plate is to park digging machine to carry out excavation and construction, and for example: enclose in first road and to be provided with the first trestle plate between the purlin beam, the first long-armed digging machine is stayed and is stopped at the direct entrucking of cutting the earth on the first trestle plate downwards; Between the 4th road brace summer, be provided with the second trestle plate, the second long-armed digging machine is stayed and is stopped at downward digging, and institute's earth excavation is piled up under the first trestle plate, takes entrucking by the first long-armed digging machine.
The utility model multi-storied garage deep foundation ditch is specially adapted to carry the construction of carrying out three-dimensional underground garage in the basement structure again at high-rise superstructure; Solved the difficult problem that prior art multi-storied garage deep foundation ditch can't be carried out construction safely and effectively; The deep foundation ditch of this structure need not take up an area of bigger tower crane in work progress, have characteristics such as safe and reliable.
Description of drawings
Fig. 1 is the utility model multi-storied garage deep foundation ditch sectional drawing.
Fig. 2 is the utility model A position rib structure sketch map.
Fig. 3 is the utility model deep foundation ditch downside four road brace summer plan views.
Wherein, capping beam 1, castinplace pile 2 encloses purlin 3, outer wall of basement 4, water-stop curtain 5, stand column pile 6 supports 7, and concrete panel 8 supports trestle scope 9.
The specific embodiment
Below in conjunction with Fig. 1, Fig. 2 and Fig. 3 the utility model is done further description.
The present embodiment project is built stereo garage system in the annex basement engineering.Annex floor space 2342 ㎡; Stereo garage system floor space 552.84 ㎡, foundation ditch structure base plate face absolute altitude are ﹣ 31.9 and-33.2 meters, long 26.7 meters; Wide 20.2 meters; Difficulty of construction is quite big, and the engineering site condition has following deficiency: east, both sides, south are the main traffic route in city, can not take; The west side is a navigable river, need to consider the river course requirement of controlling flood flood season; The north side of being close to foundation ditch is a main building, and high 85.4 meters, as the to carry two-layer basement high-rise building frame construction Qian Jieding that gone into operation in this underground three-dimensional vertical transport garage parking does not have vacant place capable of using.
To the job site of ambient conditions like this, accomplish multi-storied garage deep foundation pit construction engineering, difficulty is big, and task is arduous.Its crucial problem that needs to solve is: building-site vehicle transport route, deep foundation ditch multi-storied garage are gone along with sb. to guard him constructure scheme, earthwork, are built up the safety monitoring measure etc. of building and newly-built foundation ditch itself.
In the present embodiment; The vehicle transport scheme is following in the place: at the trestle plate of going along with sb. to guard him the need of work that 100 tons of mobile cranes of load, 40 tons of digging machines and truck are set on the beam by the west side; Big machinery operation on the trestle plate; Thereby solved the not enough problem of cubic metre of earth dress soil and mechanical work zone, and, increased the construction safety coefficient to greatest extent away from contiguous building.
In the bracing of foundation pit scheme, braced structures adopts the large diameter bored pile campshed to add in the seven road steel bar concretes and supports campshed diameter phi 800-1200MM; Design adopts the pore-creating filling pile rotary churning pile two row's diameter phi 800MM that add high pressure to do water-stop curtain, guarantees that outside water does not get in the foundation ditch; Adopt decompression precipitation well to reduce the artesian water water level in the underground stereo garage dell; Preloading must not surpass the working load of 20KPa in the 10 meters scopes in top, foundation ditch slope.
Interior support system adopts vertical stand column pile design, utilizes engineering piles as far as possible, adopts reinforced concrete bored pile φ 800MM to make vertical stand column pile in the time of can not utilizing.Lattice groined type steel framework is adopted on the top of vertical column, and weld all around is adopted in the welding of batten plate and angle steel; Intersecting parallels steel framework top is stretched in the steel concrete horizontal support, and takes reliable anchoring and rest measure; Drilled pile >=1.8M is inserted in well shaped steel framework bottom, and earlier that the reinforcing cage master muscle connection of steel framework and lower boreholes bored concrete pile is firm during construction, integral body hangs in the hole again.When after grade beam longitudinal reinforcement quantity is more, being difficult to pass through well type steel pile; Can perforate on steel pile; But the perforated area of every limb angle steel is not more than 20% of its section area, should take corresponding reinforcement measure when surpassing, and will consider the interim reduction of steel strength during the perforate operation; Note grasping the time interval of each perforate, can take interim strutting means in case of necessity.
Brace summer, capping beam, the stirrup that encloses in the purlin beam adopt the envelope form, and make 135 degree crotches, and crotch termination straight section length is not less than the higher value of 10 times of diameters and 75MM.Enclose the longitudinal stress reinforcing bar of purlin beam, the outside (leaning on fender post one side) reinforcing bar should connect near the span centre of support interval, and inboard reinforcing bar should connect in support place.When support primary and secondary deck-molding was identical, secondary beam bottom longitudinal reinforcement should place on the longitudinal reinforcement of girder bottom.Brace summer and capping beam, brace summer and enclose purlin beam, brace summer and brace summer crossed node place when crossing angle≤90 °, all should be provided with horizontal haunch.In the vertical muscle of support beam end should anchor into and bear down on one, and stretched capping beam (or enclosing the purlin beam) in line >=5d, when straight line anchoring section curtailment, vertical muscle should extend node opposite side and bending downwards.
Go along with sb. to guard him in the brace summer in seven roads, top three road brace summers are connected with the main building suspension column, are communicated with the structure that supports around forming, and improve and go along with sb. to guard him functional effect.
The construction requirement of brace summer is very high, because of consider on the trestle face of the first road brace summer west load be 100 tons mobile crane and 80 tons hang thing, the general design load is 200 tons; So trestle scope steel post has 11, trestle plate thickness of slab 350, arrangement of reinforcement are Ф 20150 double-layer double-directions; Concrete strength C30, and brace summer carried out strict maintenance, soil excavation must treat that the brace summer concrete strength reaches more than 80% and could excavate; Strictness is pressed standard, is pressed standard construction in construction, guarantees safety.
High-pressure rotary jet grouting pile adopts the double pipe high-pressure rotary jet grouting pile, and the stake footpath is 800.Each technical data control is as follows during construction: air pressure 0.7MPa, and slurries pressure 3MPa, water pressure is 20MPa, hoisting velocity 10cm/min, rotary speed 10r/min, slurry flow 100L/min, water/binder ratio 0.8.
Claims (3)
1. multi-storied garage deep foundation ditch; The capping beam that it is characterized in that interior support system that said multi-storied garage deep foundation ditch is mainly formed by the castinplace pile campshed of vertical direction and horizontal direction with enclose the purlin beam and form; Said enclosing set up detachable trestle plate between the purlin beam, said castinplace pile periphery is provided with the water-stop curtain that high-pressure rotary jet grouting pile forms.
2. multi-storied garage deep foundation ditch according to claim 1 is characterized in that said castinplace pile periphery is provided with the pore-creating filling pile water-stop curtain that rotary churning pile forms that adds high pressure.
3. multi-storied garage deep foundation ditch according to claim 1, it is characterized in that said in support system comprise and be located at the outer castinplace pile campshed of deep foundation ditch exterior wall and be located at the outer stand column pile within the walls of deep foundation ditch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203797370U CN202273233U (en) | 2011-10-09 | 2011-10-09 | Deep foundation pit of three-dimensional garage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203797370U CN202273233U (en) | 2011-10-09 | 2011-10-09 | Deep foundation pit of three-dimensional garage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202273233U true CN202273233U (en) | 2012-06-13 |
Family
ID=46193600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203797370U Expired - Fee Related CN202273233U (en) | 2011-10-09 | 2011-10-09 | Deep foundation pit of three-dimensional garage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202273233U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966110A (en) * | 2012-12-14 | 2013-03-13 | 上海市建工设计研究院有限公司 | Vertically-combined type impermeable waterproof curtain structure and construction method thereof |
| CN103741696A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Vertical enclosing purlin added inner support system |
| CN106869938A (en) * | 2017-03-29 | 2017-06-20 | 庄建军 | Underground vertical garage and its method of construction |
| CN109853729A (en) * | 2017-11-30 | 2019-06-07 | 中国二十冶集团有限公司 | Reinforcing bar processing unit and its application method for pattern foundation pit supporting structure column and floor node |
-
2011
- 2011-10-09 CN CN2011203797370U patent/CN202273233U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966110A (en) * | 2012-12-14 | 2013-03-13 | 上海市建工设计研究院有限公司 | Vertically-combined type impermeable waterproof curtain structure and construction method thereof |
| CN103741696A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Vertical enclosing purlin added inner support system |
| CN106869938A (en) * | 2017-03-29 | 2017-06-20 | 庄建军 | Underground vertical garage and its method of construction |
| CN106869938B (en) * | 2017-03-29 | 2019-12-03 | 庄建军 | Underground vertical garage and its method of construction |
| CN109853729A (en) * | 2017-11-30 | 2019-06-07 | 中国二十冶集团有限公司 | Reinforcing bar processing unit and its application method for pattern foundation pit supporting structure column and floor node |
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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: 20120613 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |