CN207597395U - The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles - Google Patents
The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles Download PDFInfo
- Publication number
- CN207597395U CN207597395U CN201721357802.3U CN201721357802U CN207597395U CN 207597395 U CN207597395 U CN 207597395U CN 201721357802 U CN201721357802 U CN 201721357802U CN 207597395 U CN207597395 U CN 207597395U
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- pile
- campshed
- piles
- foundation pit
- 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
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model is related to a kind of steel pipes and the foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles, the foundation pit enclosure structure system includes campshed building enclosure (5), rotary churning pile (3), jet grouting enlarged footing (4), PHC pile piles (2) and steel pipe (1), the top of campshed building enclosure (5) is equipped with Guan Liang (6), rotary churning pile (3) is angularly disposed on the inside of campshed building enclosure (5), the bottom end of steel pipe (1) is connect with the top of PHC pile piles (2), and inside connection, the top of steel pipe (1) is connect with Guan Liang (6), steel pipe (1) and PHC pile piles (2) are inserted into rotary churning pile (3), and slip casting obturator is equipped in steel pipe (1) and PHC pile piles (2).Compared with prior art, the utility model can save the foundation pit in the range of certain depth horizontally-supported, reduce construction cost, shorten the construction period.
Description
Technical field
The utility model belongs to foundation pit enclosure technical field, more particularly, to a kind of steel pipe and the compound diagonal brace of PHC pile piles
With reference to the foundation pit enclosure structure system of campshed.
Background technology
At present, the domestic especially research of Soft Deep Foundation Pit engineering has the experience of many decades, engineering with practical work
Usually there are many dig that deep and local environmental conditions to go along with sb. to guard him form available for different in practice.
For digging deeply in the foundation pit within 6m, cement-soil wall, soil nail wall, row generally can be used at present
The diversified forms such as stake (with reference to inner support or soil bolt), gantry type double cantilever piles.Wherein, for the foundation pit within 6m, weight
It goes along with sb. to guard him form and is most widely used in power dam.
In addition, surrounding enviroment especially basement red line moves back the important factor in order that boundary is base pit engineering.Basement red line
It moves back boundary and refers to build outer wall of underground structure to the distance of land red-line, according to the rules, the foundation pit enclosure structure as temporary structure
Land red-line must not be exceeded, i.e. building enclosure can utilize range of the space between basement and red line.Yangtze River Delta Area in recent years
Especially for the real estate project of District of Shanghai generally using basement is completely spread, boundary is moved back very in the partially or fully region of many engineerings
Small, the prior art is extremely difficult to require or to reach cost needed for requirement very high.
Invention content
The purpose of this utility model be exactly in order to overcome the problems of the above-mentioned prior art and provide a kind of steel pipe with
The foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of steel pipe and the foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles, knot is gone along with sb. to guard him including campshed
Structure, the top of the campshed building enclosure are equipped with Guan Liang, further include rotary churning pile, PHC pile piles and steel pipe, the rotary churning pile is oblique
To being arranged on the inside of campshed building enclosure, the bottom end of steel pipe is connect with the top of PHC pile piles, and internal connection, the top of steel pipe
End is connect with Guan Liang, and steel pipe and PHC pile piles are inserted into rotary churning pile, and slip casting obturator is equipped in steel pipe and PHC pile piles.
Preferably, the bottom end point of the rotary churning pile is equipped with enlarged footing.
Preferably, cement mortar or pea gravel concreten in the slip casting obturator.
Preferably, the campshed building enclosure is made of campshed, and the campshed is made of water-stop curtain and soil blocking pile,
The water-stop curtain includes two axis mixing piles, three axes agitating pile, five axis mixing piles, six axis mixing piles or rotary churning pile；Described
Soil blocking pile includes double pile soil-baffling structure of Single row pillars composition of cast-in-situ bored pile, shaped steel or precast concrete pile composition etc..
Preferably, the top of the steel pipe and Guan Liang anchor connection.
Preferably, the bottom end of the steel pipe and the top of PHC pile piles pass through electric welding connection.
The steel pipe and the application of the foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles, are answered
For the construction of underground structure, include the following steps：
S1：For underground structure foundation pit, boundary's requirement is moved back according to basement, carry out campshed building enclosure and angularly disposed is being arranged
The construction of rotary churning pile on the inside of stake building enclosure, should carry out preexisting hole before jet grouting pile construction；
S2：By the bottom end of steel pipe and the top electric welding connection of PHC pile piles；
S3：Steel pipe and PHC pile piles are inserted into rotary churning pile；
S4：Cement mortar or pea gravel concreten are injected into steel pipe and PHC pile piles by grouting equipment；
S5：By steel pipe top and the bar connecting of Guan Liang that is arranged at the top of campshed building enclosure, and casting concrete, into
Foundation pit enclosure structure system of the steel pipe with the compound diagonal brace combination campshed of PHC pile piles is formed after type；
S6：Rotary churning pile outside steel pipe more than excavation face and steel pipe are removed；
S7：The excavation of foundation pit is carried out, the reinforced bed of steel pipe, steel pipe and arrangement of reinforcement are arranged through on the inside of campshed building enclosure
Bed course bar connecting；
S8：The construction of basement structure is carried out, in work progress, the exterior wall of basement structure is made to pass through steel pipe.
Preferably, in step S3, before rotary churning pile consolidation molding, steel pipe and PHC pile piles are inserted into rotary churning pile；Step S4
In, before Guan Liang construction, the cement mortar of microdilatancy or microlith coagulation are injected into steel pipe and PHC pile piles by grouting equipment
Soil.
Preferably, the bottom end of the steel pipe is located at 0.5~2m below reinforced bed.
The utility model moves back the small situation in boundary for engine request, proposes a kind of novel retaining design --- a kind of steel pipe
With the foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles.The retaining design of the utility model can be used for underground
The smaller base pit engineerings of Shi Tui circle due to not using large area inner support, can excavate specified regional earthwork in batches.
Compared with prior art, the utility model has the advantages that：Technical side involved by the utility model
Case provides a kind of method for substituting one of horizontally-supported structural protective system.By adding in pile pile diagonal brace in hole, save
Foundation pit horizontal support structure, facilitates excavation construction.In addition, by high-pressure rotary jet grouting pile and enlarged footing, branch is formed in limited range
The stronger structure of support ability effectively limits the deformation of pile pile support, improves the stability of building enclosure.The utility model
Supporting top, bending strength is high, more safe and reliable to retaining design using steel pipe；Simultaneously be conducive to underground structure bottom plate and
The waterproof construction of exterior wall.
Description of the drawings
Fig. 1 is the schematic diagram before excavation of foundation pit in embodiment 1；
Fig. 2 is the schematic diagram after excavation of foundation pit in embodiment 1；
Fig. 3 is the cross-sectional view of PHC pile piles.
In figure, 1 is steel pipe, and 2 be PHC pile piles, and 3 be rotary churning pile, and 4 be enlarged footing, and 5 be campshed building enclosure, and 6 be Guan Liang, 7
It is reinforced bed for the soil body, 8.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment 1
A kind of foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles, as shown in Figure 1, including
Campshed building enclosure 5, rotary churning pile 3, PHC pile piles 2 and steel pipe 1, the top of campshed building enclosure 5 are equipped with Guan Liang 6, and rotary churning pile 3 is oblique
5 inside of campshed building enclosure is arranged on to (being tilted from 5 top of campshed building enclosure to its inside), bottom end and the PHC of steel pipe 1 are managed
The top connection of stake 2, and internal connection, the top of steel pipe 1 are connect with Guan Liang 6, and steel pipe 1 and PHC pile piles 2 are inserted into rotary churning pile 3
In, and slip casting obturator is equipped in steel pipe 1 and PHC pile piles 2.
In the present embodiment, campshed building enclosure 5 is made of water-stop curtain and soil blocking pile, and the water-stop curtain includes two axis
Mixing pile, three axes agitating pile, five axis mixing piles, six axis mixing piles or rotary churning pile；The soil blocking pile includes cast-in-situ bored pile, type
The single or double pile soil-baffling structure of steel or precast concrete pile composition.In order to increase the frictional resistance of rotary churning pile 3 and the soil body 7, revolve
The bottom end point for spraying stake 3 is equipped with enlarged footing 4, and rotary churning pile and enlarged footing need higher intensity.Slip casting obturator (such as water
Cement mortar) it can effectively enhance the intensity of steel pipe 1 and PHC pile piles 2, in order to further enhance intensity, slip casting obturator can be micro-
The pea gravel concreten of expansion.In the present embodiment, top and 6 anchor connection of Guan Liang of steel pipe 1.The bottom end of steel pipe 1 and PHC pile piles 2
Top by electric welding connection, the cross section of rotary churning pile is as shown in Figure 3.
The steel pipe of the present embodiment can be applied to the foundation pit enclosure structure system of the compound diagonal brace combination campshed of PHC pile piles
Basement moves back the smaller base pit engineering in boundary, is applied to the construction of basement structure, includes the following steps：
S1：For underground structure foundation pit, boundary's requirement is moved back according to basement, carry out campshed building enclosure 5 and it is angularly disposed
The construction of the rotary churning pile 3 of 5 inside of campshed building enclosure, rotary churning pile 3 should carry out preexisting hole before constructing；
S2：By the bottom end of steel pipe 1 and the top electric welding connection of PHC pile piles 2；
S3：Steel pipe 1 and PHC pile piles 2 are inserted into rotary churning pile 3；
S4：Cement mortar or pea gravel concreten are injected into steel pipe 1 and PHC pile piles 2 by grouting equipment；
S5：By 1 top of steel pipe and the bar connecting for the Guan Liang 6 for being arranged on 5 top of campshed building enclosure, and pour coagulation
Soil forms foundation pit enclosure structure system of the steel pipe with the compound diagonal brace combination campshed of PHC pile piles, as shown in Figure 1 after molding；
S6：Rotary churning pile 3 more than 1 outer excavation face of steel pipe is removed with steel pipe 1；
S7：Carry out the excavation of foundation pit, be arranged through the reinforced bed 8 of steel pipe 1 in the inside of campshed building enclosure 5, steel pipe 1 with
8 bar connecting of reinforced bed；As shown in Figure 2
S8：The construction of basement structure is carried out, in work progress, the exterior wall of basement structure is made to pass through steel pipe 1.
Wherein, in step S3, before 3 cement slurry initial set of rotary churning pile, steel pipe 1 and PHC pipes 2 are inserted into rotary churning pile 3；
In step S4, before Guan Liang construction, pass through grouting equipment slip casting into steel pipe 1 and PHC pile piles 2.The bottom end of steel pipe 1 is located at and matches
8 0.5~2m of lower section of muscle bed course.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously can easily make these embodiments various modifications, and described herein general
Principle is applied in other embodiment without having to go through creative labor.Therefore, the utility model is not limited to the above embodiments,
Those skilled in the art's announcement according to the present utility model, does not depart from improvement that the utility model scope made and modification all should
This is within the protection scope of the utility model.
Claims (6)
1. a kind of foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles, including campshed building enclosure
(5), the top of the campshed building enclosure (5) is equipped with Guan Liang (6), which is characterized in that further includes rotary churning pile (3), PHC pile piles
(2) and steel pipe (1), the rotary churning pile (3) are angularly disposed in campshed building enclosure (5) inside, the bottom end of steel pipe (1) and PHC
The top connection of pile pile (2), and internal connection, the top of steel pipe (1) are connect with Guan Liang (6), steel pipe (1) and PHC pile piles (2)
It is inserted into rotary churning pile (3), and slip casting obturator is equipped in steel pipe (1) and PHC pile piles (2).
2. the foundation pit enclosure structure system of steel pipe according to claim 1 and the compound diagonal brace combination campshed of PHC pile piles,
It is characterized in that, the bottom end point of the rotary churning pile (3) is equipped with enlarged footing (4).
3. the foundation pit enclosure structure system of steel pipe according to claim 1 and the compound diagonal brace combination campshed of PHC pile piles,
It is characterized in that, the slip casting obturator is cement mortar or pea gravel concreten.
4. the foundation pit enclosure structure system of steel pipe according to claim 1 and the compound diagonal brace combination campshed of PHC pile piles,
It is characterized in that, the campshed building enclosure (5) is made of water-stop curtain and soil blocking pile, and the water-stop curtain is stirred including two axis
Mix stake, three axes agitating pile, five axis mixing piles, six axis mixing piles or rotary churning pile；The soil blocking pile includes cast-in-situ bored pile, shaped steel
Or the single or double pile soil-baffling structure of precast concrete pile composition.
5. the foundation pit enclosure structure system of steel pipe according to claim 1 and the compound diagonal brace combination campshed of PHC pile piles,
It is characterized in that, top and Guan Liang (6) anchor connection of the steel pipe (1).
6. the foundation pit enclosure structure system of steel pipe according to claim 1 and the compound diagonal brace combination campshed of PHC pile piles,
It is characterized in that, the bottom end of the steel pipe (1) passes through electric welding connection with the top of PHC pile piles (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357802.3U CN207597395U (en) | 2017-10-20 | 2017-10-20 | The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357802.3U CN207597395U (en) | 2017-10-20 | 2017-10-20 | The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207597395U true CN207597395U (en) | 2018-07-10 |
Family
ID=62756199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721357802.3U Active CN207597395U (en) | 2017-10-20 | 2017-10-20 | The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207597395U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501772A (en) * | 2020-04-10 | 2020-08-07 | 深圳市地质环境研究院有限公司 | Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method |
| CN112227384A (en) * | 2020-10-29 | 2021-01-15 | 北京中岩大地科技股份有限公司 | Construction method of resistance-increasing large-deformation enclosure structure |
| CN112267472A (en) * | 2020-10-17 | 2021-01-26 | 江苏建院营造股份有限公司 | Construction process for foundation pit support of inclined pile of advanced mixing pile |
| CN113322971A (en) * | 2021-05-10 | 2021-08-31 | 广东省建筑设计研究院有限公司 | Combined prefabricated dado square pile foundation pit supporting structure and construction method thereof |
| CN114197485A (en) * | 2021-12-23 | 2022-03-18 | 上海勇创环境岩土工程有限公司 | Construction process of inclined support pile for soft soil base enclosure |
-
2017
- 2017-10-20 CN CN201721357802.3U patent/CN207597395U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501772A (en) * | 2020-04-10 | 2020-08-07 | 深圳市地质环境研究院有限公司 | Construction method for supporting and protecting piles by combining grouting with steel pipes in SMW (soil mixing wall) construction method |
| CN112267472A (en) * | 2020-10-17 | 2021-01-26 | 江苏建院营造股份有限公司 | Construction process for foundation pit support of inclined pile of advanced mixing pile |
| CN112227384A (en) * | 2020-10-29 | 2021-01-15 | 北京中岩大地科技股份有限公司 | Construction method of resistance-increasing large-deformation enclosure structure |
| CN112227384B (en) * | 2020-10-29 | 2022-06-21 | 北京中岩大地科技股份有限公司 | Construction method of resistance-increasing large-deformation enclosure structure |
| CN113322971A (en) * | 2021-05-10 | 2021-08-31 | 广东省建筑设计研究院有限公司 | Combined prefabricated dado square pile foundation pit supporting structure and construction method thereof |
| CN114197485A (en) * | 2021-12-23 | 2022-03-18 | 上海勇创环境岩土工程有限公司 | Construction process of inclined support pile for soft soil base enclosure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207597395U (en) | The foundation pit enclosure structure system of steel pipe and the compound diagonal brace combination campshed of PHC pile piles | |
| CN206971232U (en) | A kind of oblique inner support foundation pit enclosure structure of shaped steel cement earth pile | |
| CN104264688A (en) | Manual hole digging non-uniform pile support construction technology | |
| CN105951843A (en) | Construction method of deep foundation pit | |
| CN104775440A (en) | Mineshaft-type underground garage deep foundation pit supporting structure | |
| CN204590038U (en) | A kind of permanent foundation pit supporting construction | |
| CN202440823U (en) | Supporting structure of pipe jacking pit | |
| CN207646746U (en) | A kind of arch interlocking pile formula foundation pit supporting construction | |
| CN204825928U (en) | Excavation supporting | |
| CN109024609A (en) | A kind of foundation pit supporting construction and its construction method based on old campshed | |
| CN104846832A (en) | Construction method of circular deep foundation pit enclosure of discrete pile support | |
| CN102220764B (en) | Construction method of deep foundation pit bracing system | |
| CN207211158U (en) | Assembled pile board wall foundation pit supporting construction | |
| CN203768914U (en) | Foundation pit bracing diagonal support pile structure | |
| CN206220101U (en) | A kind of support reinforcement structure of deep basal pit | |
| CN108035360A (en) | A kind of method for pattern foundation pit supporting structure | |
| CN209443472U (en) | A kind of supporting construction of double-row pile combination wide-angle anchor cable | |
| CN106836230A (en) | A kind of foundation ditch point hole construction method | |
| CN106013168A (en) | Slag trough structure and construction method for same | |
| CN203625911U (en) | Soil discharging construction structure with pit-in-pit door opening arranged in deep foundation pit | |
| CN216515701U (en) | Miniature stake raft board combination foundation structure | |
| CN207062958U (en) | A kind of deep basal pit complexity some support combining structure | |
| CN106567382B (en) | A kind of pit curtain construction method in metalling | |
| CN213625605U (en) | Dig deep basal pit structure of stake anchor and hanging net injection concrete soon | |
| CN212896447U (en) | Structure of manual hole digging cast-in-place pile foundation underpinning raft foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |