CN106120798B - Cast-in-place pile construction method for underground engineering structure - Google Patents
Cast-in-place pile construction method for underground engineering structure Download PDFInfo
- Publication number
- CN106120798B CN106120798B CN201610482820.8A CN201610482820A CN106120798B CN 106120798 B CN106120798 B CN 106120798B CN 201610482820 A CN201610482820 A CN 201610482820A CN 106120798 B CN106120798 B CN 106120798B
- Authority
- CN
- China
- Prior art keywords
- hole
- steel pile
- pile casting
- existing structure
- casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D19/00—Keeping dry foundation sites or other areas in the ground
- E02D19/06—Restraining of underground water
- E02D19/10—Restraining of underground water by lowering level of ground water
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Abstract
The present invention provides a kind of cast-in-place pile construction methods for underground engineering structure, include the following steps：A. the soil body above existing structure top plate is excavated, keeps existing structure top plate exposed；B. it is drilled with first through hole on existing structure top plate and ensures that its aperture is not less than steel pile casting aperture；C. blind hole is opened up on existing structure bottom plate, the good first through hole of the second through-hole is coaxial and aperture is not less than steel pile casting aperture；Ensure that the second through-hole is not got through and bottom hole is reserved with concrete；D. Application of light well point precipitation is applied at the second through-hole edge；E. steel pile casting is placed, steel pile casting bottom end downlink is got through the second through-hole after passing through first through hole and is positioned over below existing structure bottom plate；F. cement mortar backfill steel pile casting outer wall gap is used；G. the soil body on the outside of the steel pile casting of cement earthen backfill existing structure top is used；H. it constructs in steel pile casting bored concrete pile, steel pile casting element concrete sealing of hole is pulled out after the completion of bored concrete pile.The present invention solves the situation that bored concrete pile encounters built Underground Construction difficulty.
Description
Technical field
The invention belongs to railway traffic engineering, underground space development engineering, underpass engineering, building engineering, change
Build the engineering fields such as enlarging, and in particular to a kind of cast-in-place pile construction method for underground engineering structure.
Background technology
A kind of bored concrete pile structure type common as basic engineering and foundation pit enclosure, is frequently necessary in practical applications
Built existing underground structure is passed through, discarded civil air defense constructions and installations, municipal underground in constructing such as foundation pit enclosure structure through being commonly encountered
The construction of engineering pile and underpinned pile in the downward project for renovation and expansion of structures or even existing basement, is required for passing through ground
Lower structure construction bored concrete pile.The construction method of bored concrete pile not only influences running smooth for engineering, or even as being even more to influence
The pile quality of bored concrete pile, construction method is improper, easily causes engineering accident and risk.
Invention content
The purpose of the present invention provides a kind of bored concrete pile for underground engineering structure and applies aiming at the defect of the prior art
Work method so that bored concrete pile passes through built underground structure not in the factor as engineering constraint design and construction.
The present invention provides a kind of cast-in-place pile construction methods for underground engineering structure, it is characterised in that including following step
Suddenly：
A. the soil body above existing structure top plate is excavated, keeps existing structure top plate exposed；
B. it is drilled with first through hole on existing structure top plate；Steel pile casting is set to pass through first through hole
C. blind hole is opened up on existing structure bottom plate, steel pile casting is enable to be inserted into blind hole；Ensure that blind hole is not got through and bottom hole is pre-
There are concrete；
D. Application of light well point precipitation is applied at blind hole edge；
E. the bottom end of steel pile casting is inserted into and is pushed up after first through hole and wear blind hole, the bottom end of steel pile casting is positioned over existing knot
Below structure bottom plate, the blind hole after top is worn forms the second through-hole；
F. it is filled up respectively between sealing steel pile casting outer wall and first through hole inner wall and the second through-hole wall using cement mortar
Gap；
G. the soil body on the outside of the steel pile casting of cement earthen backfill existing structure top is used；
H. it constructs in steel pile casting bored concrete pile.
I. steel pile casting is pulled out after the completion of bored concrete pile, and in the outer wall of bored concrete pile and first through hole inner wall and the second through-hole
Gap between wall is using plain concrete sealing of hole.If steel pile casting must be extracted for fender post, if steel pile casting can as stand column pile
Not pull out.
The step a includes that slope excavates the soil body above existing structure top plate, and existing structure top plate exposed area is more than steel
Casing area of section.
The inner wall of first through hole is reserved with reinforcing bar in the step b, and the cement backfilled in step f is embedded in after the reinforcing bar
In slurry；The reinforcing bar is in the outside of steel pile casting down going channel.
The thickness of the reserved existing structure bottom plate of blind via bottom need to ensure that the gravity of steel pile casting downlink can incite somebody to action in the step c
It breaks through and the hydraulic pressure below existing structure bottom plate can not be broken through.
Well point is uniformly distributed centered on steel pile casting along its surrounding in the step d, and steel pile casting is avoided to get through the second through-hole
When existing structure bottom plate below water pour in above existing structure bottom plate.
The present invention proposes a kind of cast-in-place pile construction method passing through built underground structure.The present invention need to first by certain requirements and
Step sequence abolishes the structural slab of steel pile casting range, precipitation, lower steel pile casting, fills steel pile casting gap, bored concrete pile of finally constructing.The present invention
Slope excavates the soil body above existing structure top plate, and construction safety is effectively ensured.The present invention retains its side after breaking through first through hole
The stability of backfill structure is effectively ensured in the part reinforcing bar of edge.The present invention passes through reserved second through-hole bottom plate and setting light well point
Precipitation effectively prevent water below existing structure bottom plate to pour in underground structure.The present invention enclosing using steel pile casting as filling pile construction
The security implementation of construction is effectively ensured in protection structure.The present invention can meet piles with different diameter, the construction of pile-type bored concrete pile.The present invention carries
A kind of cast-in-place pile construction method for abolishing built underground structure has been supplied, bored concrete pile has been solved and encounters built Underground Construction difficulty
The case where, for solution formulation, safe construction, controlling risk has good effect, and operating personnel can be according to site operation situation
Determine first through hole, the size of the second through-hole and reserved bottom plate.Especially to being encountered when subway station and underground engineering construction
With prodigious applicability and certain economic results in society when built underground structure.
Description of the drawings
Fig. 1 is present invention construction elevational schematic view；
Fig. 2 is existing structure top plate schematic diagram；
Fig. 3 is existing structure floor diagram；
1-soil cement；2-grade lines；The soil body above 3-existing structure top plates；4-existing structure top plates；5- water
Mud；6- steel pile castings；7- Application of light well point precipitation；8- bored concrete piles；9- existing structure bottom plates
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments, convenient for this hair is well understood
It is bright, but they do not constitute the present invention and limit.
As shown, the present invention provides a kind of cast-in-place pile construction method for underground engineering structure, including following step
Suddenly：
1, in 8 boundary of works area of bored concrete pile, 3 slope of the top soil body of existing structure top plate 4 is excavated；Existing knot after excavation
The 4 top soil body 3 of structure top plate forms hourglass-shaped pit body, and exposed 4 area of existing structure top plate is more than 6 section of steel pile casting, is convenient for
Steel pile casting 6 enters existing structure top plate 4；
2, ensure that steel pile casting 6 may pass through existing structure top plate 4, abolish existing structure top in the boundary of works area of steel pile casting 6
Plate 4 forms first through hole, and hole edge reserved part reinforcing bar is so that gap is returned between steel pile casting 6 and first through hole inside in subsequent operation
It fills out；
3, structure base slab is abolished in 6 range of steel pile casting, that is, ensures that steel pile casting 6 may pass through existing structure bottom plate 9, existing structure
Bottom plate 9 need to reserve 50mm thickness concrete；Ensureing the gravity of 6 downlink of steel pile casting can be broken through and existing structure bottom plate 9 lower section
Hydraulic pressure can not be broken through.
4, construction Application of light well point precipitation 7, well point is along 6 surrounding of steel pile casting arrangement, existing knot when steel pile casting 6 being avoided to get through blind hole
The water of 9 lower section of structure bottom plate pours in above existing structure bottom plate；
5, steel pile casting 6 is installed, steel pile casting 6 passes through the reserved 50mm thickness concrete of existing structure bottom plate 9 to existing structure bottom
9 lower section of plate；
6, steel pile casting 6 is filled with first through hole and the outer void of the second through-hole using Fast Setting Cement Slurry 5, while structure roof
The above surrounding soil body backfills soil cement 1；
7, the construction bored concrete pile 8 in steel pile casting 6 after the completion of bored concrete pile 8 is checked and accepted, pulls out plain concrete sealing of hole after 6 steel pile castings 6.
The present invention provides a kind of cast-in-place pile construction methods passing through underground engineering structure, solve bored concrete pile and encounter underground
The situation of structure construction difficulty, for solution formulation, safe construction, controlling risk has good effect.Especially to subway
It stands and when underground engineering construction encounters built underground structure with prodigious applicability and certain economic results in society.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (4)
1. a kind of cast-in-place pile construction method for underground engineering structure, it is characterised in that include the following steps：
A. the soil body (3) above existing structure top plate (4) is excavated, keeps existing structure top plate (4) exposed；
B. it is drilled with first through hole on existing structure top plate (4)；Steel pile casting is set to pass through first through hole；The inner wall of first through hole is pre-
There are reinforcing bar, it is embedded in after the reinforcing bar in the cement mortar (5) backfilled in step f；The reinforcing bar is in steel pile casting (6) down going channel
Outside；
C. blind hole is opened up on existing structure bottom plate (9), steel pile casting is enable to be inserted into blind hole；Ensure that blind hole is not got through and bottom hole is reserved
There is concrete；The thickness of the reserved existing structure bottom plate (9) of blind via bottom need to ensure that the gravity of steel pile casting (6) downlink can be rushed
Hydraulic pressure below broken and existing structure bottom plate (9) can not be broken through；
D. Application of light well point precipitation (7) is applied at blind hole edge；
E. it is inserted into and pushes up and wear blind hole after the bottom end of steel pile casting (6) being passed through first through hole, the bottom end of steel pile casting (6) is positioned over existing
Below structure base slab (9), the blind hole after top is worn forms the second through-hole；
F. using cement mortar (5) fill up respectively sealing steel pile casting (6) outer wall and first through hole inner wall and the second through-hole wall it
Between gap；
G. steel pile casting (6) the outside soil body above soil cement (1) backfill existing structure is used；
H. the construction bored concrete pile (8) in steel pile casting (6).
2. the cast-in-place pile construction method according to claim 1 for underground engineering structure, it is characterised in that further include step
Steel pile casting (6) is pulled out after the completion of rapid i. bored concrete piles (8), and to bored concrete pile outer wall and first through hole inner wall and the second through-hole wall
Between gap using plain concrete sealing of hole.
3. the cast-in-place pile construction method according to claim 1 for underground engineering structure, it is characterised in that step a includes
Slope excavates the soil body (3) above existing structure top plate (4), and existing structure top plate (4) exposed area is more than steel pile casting (6) section face
Product.
4. the cast-in-place pile construction method according to claim 1 for underground engineering structure, it is characterised in that well in step d
Point is uniformly distributed centered on steel pile casting (6) along its surrounding, existing structure bottom plate when steel pile casting (6) being avoided to get through the second through-hole
(9) water below pours in above existing structure bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482820.8A CN106120798B (en) | 2016-06-27 | 2016-06-27 | Cast-in-place pile construction method for underground engineering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482820.8A CN106120798B (en) | 2016-06-27 | 2016-06-27 | Cast-in-place pile construction method for underground engineering structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106120798A CN106120798A (en) | 2016-11-16 |
| CN106120798B true CN106120798B (en) | 2018-07-24 |
Family
ID=57265863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610482820.8A Active CN106120798B (en) | 2016-06-27 | 2016-06-27 | Cast-in-place pile construction method for underground engineering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106120798B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382076A (en) * | 2022-01-26 | 2022-04-22 | 上海市机械施工集团有限公司 | Bored pile construction method for existing underground structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687536A (en) * | 2005-06-07 | 2005-10-26 | 上海市城市建设设计研究院 | Construction method of subsurface excavation and layer added by using top layer of existed basement as native cover board |
| CN102444142A (en) * | 2011-09-20 | 2012-05-09 | 新世纪建设集团有限公司 | Pile group column replacement expanded basement and construction method of same |
| CN103321244A (en) * | 2013-03-27 | 2013-09-25 | 江苏苏南建筑技术发展有限公司 | Construction method for additionally arranged basement in existing building on sand foundation |
| CN104594371A (en) * | 2015-01-23 | 2015-05-06 | 上海建工二建集团有限公司 | Reinforcing structure of existing foundation bottom plate and construction method thereof |
| CN106245625A (en) * | 2016-07-28 | 2016-12-21 | 中国建筑第六工程局有限公司 | Pass through the bored pile construction method of existing Large Underground space structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5095719B2 (en) * | 2009-12-28 | 2012-12-12 | 大豊建設株式会社 | Cast-in-place pile construction method |
-
2016
- 2016-06-27 CN CN201610482820.8A patent/CN106120798B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687536A (en) * | 2005-06-07 | 2005-10-26 | 上海市城市建设设计研究院 | Construction method of subsurface excavation and layer added by using top layer of existed basement as native cover board |
| CN102444142A (en) * | 2011-09-20 | 2012-05-09 | 新世纪建设集团有限公司 | Pile group column replacement expanded basement and construction method of same |
| CN103321244A (en) * | 2013-03-27 | 2013-09-25 | 江苏苏南建筑技术发展有限公司 | Construction method for additionally arranged basement in existing building on sand foundation |
| CN104594371A (en) * | 2015-01-23 | 2015-05-06 | 上海建工二建集团有限公司 | Reinforcing structure of existing foundation bottom plate and construction method thereof |
| CN106245625A (en) * | 2016-07-28 | 2016-12-21 | 中国建筑第六工程局有限公司 | Pass through the bored pile construction method of existing Large Underground space structure |
Non-Patent Citations (2)
| Title |
|---|
| 福州长乐国际机场航站楼地下室承台补桩施工技术;林良;《福建建材》;20150531(第5期);69-71,53 * |
| 钻孔桩遇报废人防时的处理和利用;张宗毅;《建筑技术》;19960331;第23卷(第3期);182-183 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106120798A (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107542108B (en) | A kind of reverse construction method of building basement structure | |
| KR101633840B1 (en) | The Earth Retaining Wall using the Hybrid-CIP(Cast-In place concrete Pile) method, and thereof Construction Method | |
| CN110821503B (en) | Construction method for main body of ultra-deep shield section air shaft after tunnel advance | |
| CN105715296B (en) | Sand blowing, backfilling and grouting construction method for tunnel to penetrate through coal mine goaf | |
| CN104746517B (en) | A kind of suspension roof support system of total length below artesian head | |
| CN106988302B (en) | A kind of high inclination-angle competent bed rotary digging pile driving construction engineering method | |
| Wu et al. | Sand-layer collapse treatment: An engineering example from Qingdao Metro subway tunnel | |
| CN106351230B (en) | Soft clay area basement construction method for supporting | |
| CN110130936B (en) | Construction method for sudden encountering untreated karst cave or crack in shield tunneling process | |
| CN106968690A (en) | The method for tunnel construction for soil property of caving in | |
| CN109778992A (en) | A kind of ride well device and its construction method for pipeline construction | |
| CN114233385B (en) | Treatment method for mud-bursting water of inclined shaft | |
| CN106988750A (en) | The embodiment at existing station is worn under a kind of large span running tunnel super close distance | |
| CN111119128A (en) | Danger-removing, reinforcing and seepage-proofing method for natural rock-fill dam of barrier lake | |
| CN109578014A (en) | Anti- dash forward of one kind gushes back cover structure and construction method | |
| CN103572764A (en) | Watertight structure for retaining wall of ultra-deep manually excavated pile and construction method thereof | |
| CN106120798B (en) | Cast-in-place pile construction method for underground engineering structure | |
| CN110512594A (en) | The simple and easy method of churning driven opportunity cavity pore-forming | |
| CN113898007B (en) | Semi-inverse construction method for long-span corridor structure along street | |
| CN114809094A (en) | Pipe jacking working well for complex stratum and construction process thereof | |
| CN211666727U (en) | Surrounding rock construction device is consolidated in construction of tunnel overlength pipe shed | |
| KR101523948B1 (en) | Construction method of underground structure under the established building | |
| KR101437882B1 (en) | Tunnel excavating method having various cross sectional shapes | |
| CN106337423B (en) | A kind of enhanced ruggedized construction of drag and its construction method | |
| CN110144903A (en) | A kind of pattern foundation pit supporting structure meets the construction in bomb shelter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |