CN110130327A - Organizational pile foundation structure and its installation method - Google Patents
Organizational pile foundation structure and its installation method Download PDFInfo
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- CN110130327A CN110130327A CN201810128563.7A CN201810128563A CN110130327A CN 110130327 A CN110130327 A CN 110130327A CN 201810128563 A CN201810128563 A CN 201810128563A CN 110130327 A CN110130327 A CN 110130327A
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- 238000009434 installation Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 239000011435 rock Substances 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 6
- 239000011513 prestressed concrete Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
-
- 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- 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
- E02D5/58—Prestressed concrete piles
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to the installation methods of piling strtucture technical field more particularly to a kind of organizational pile foundation structure and the organizational pile foundation structure.The organizational pile foundation structure includes pile body, and pile body includes the lower pile cutoff that material is concrete and the upper pile cutoff that material is steel, is fixedly connected between lower pile cutoff and upper pile cutoff, and when pile body is squeezed into ground, lower pile cutoff enters Deep Rock soil layer, and upper pile cutoff enters shallow rock soil layer.The installation method of the organizational pile foundation structure includes Step 1: specifying target position to drill in rock-soil layer, and the diameter in hole is greater than the maximum gauge of the pile body of organizational pile foundation structure；Step 2: the pile body kind of organizational pile foundation structure is entered in hole；Step 3: filling backfilling material in the inner space of pile body and in the gap in pile body and hole.Lower pile cutoff is made of concrete, not only can guarantee the bearing capacity of piling strtucture, but also can effectively reduce the dosage of Steel material, substantially reduces the project cost of piling strtucture, and manufacture very convenient.
Description
Technical field
The present invention relates to piling strtucture technical field more particularly to a kind of organizational pile foundation structures and the organizational pile foundation structure
Installation method.
Background technique
Land building or offshore engineering structure, which all have, squeezes into the piling strtucture of rock-soil layer certain depth as brace foundation,
The pile body of piling strtucture enters the part (part for entering Deep Rock soil layer) of rock-soil layer certain depth, and stress is mainly axis
Xiang Li, suffered horizontal force and moment of flexure are then smaller, and the increase of usual pile body length is mainly axially held also for meeting piling strtucture
Carry the requirement of power.
It in the prior art, is the intensity and bearing capacity that ensure piling strtucture, pile body is all made of Steel material and is made.But with close
The price of Steel material is constantly soaring over year, and the project cost of piling strtucture is caused gradually to be promoted.Therefore, needing one kind can be full
Under the premise of sufficient piling strtucture requirement for bearing capacity, reduction Steel material dosage, the piling strtucture for reducing cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide the installation sides of a kind of organizational pile foundation structure and the organizational pile foundation structure
Method can reduce Steel material dosage, reduce cost, to overcome existing skill under the premise of meeting piling strtucture requirement for bearing capacity
The drawbacks described above of art.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of organizational pile foundation structure, including pile body, pile body includes the lower pile cutoff that material is concrete and material is the upper of steel
Pile cutoff is fixedly connected between lower pile cutoff and upper pile cutoff, and when pile body is squeezed into rock-soil layer, lower pile cutoff enters Deep Rock soil layer, upper stake
Section enters shallow rock soil layer.
Preferably, it is equipped with first flange disk close to one end of upper pile cutoff in lower pile cutoff, in upper pile cutoff close to the one of lower pile cutoff
End is equipped with second flange disk, and first flange disk is connected to each other with second flange disk.
Preferably, lower pile cutoff is prestressed reinforced concrete construction.
Preferably, lower pile cutoff and/or upper pile cutoff are thin-wall construction.
Preferably, the axis of upper pile cutoff and lower pile cutoff overlaps.
Preferably, pile body is equipped with one, is equipped in upper pile cutoff far from one end of lower pile cutoff and is supported structure for connecting
Third ring flange.
Preferably, pile body is equipped with multiple, and organizational pile foundation structure further includes one for connecting the supporting station for being supported structure, is propped up
Cushion cap is supported on the upper pile cutoff of all pile bodies far from one end of lower pile cutoff.
A kind of installation method of organizational pile foundation structure as described above, comprising the following steps: Step 1: specified in rock-soil layer
Target position drilling, the diameter in hole are greater than the maximum gauge of the pile body of organizational pile foundation structure；Step 2: by organizational pile foundation structure
Pile body kind enters in hole；Step 3: filling backfilling material in the inner space of pile body and in the gap in pile body and hole.
Preferably, in step 1, first specify target position to squeeze into a steel pile casting in rock-soil layer, then in steel pile casting into
Row drilling.
Preferably, further comprising the steps of after step 3: Step 4: extracting steel pile casting；Step 5: extracting steel
Backfilling material is filled in the hole generated after casing.
Compared with prior art, the present invention has significant progress:
Pile body is divided into two sections, enter Deep Rock soil layer lower pile cutoff be made of concrete, with enter shallow rock soil
The upper pile cutoff of the steel material of layer collectively forms a combined pile body, thus instead of the whole-steel pile body of existing piling strtucture, significantly
Reduce the dosage of Steel material.Since lower pile cutoff enters Deep Rock soil layer, stress is mainly axial force, suffered horizontal force and
Moment of flexure is then smaller, moreover, the stake soil side resistance value between concrete-pile and piling bar and rock-soil layer differs smaller, therefore, lower pile cutoff
It is made of concrete, not only can guarantee the bearing capacity of piling strtucture, but also the dosage of Steel material can be effectively reduced, substantially reduced pile foundation
The project cost of structure, and manufacture very convenient.Especially for China's wind-powered electricity generation industry piling strtucture the universal size of pile body compared with
Long status provides a kind of organizational pile foundation structure of alternative good economy performance, has significant economic benefit.
Detailed description of the invention
Fig. 1 is the schematic front view of the pile body of organizational pile foundation structure of the invention.
Fig. 2 is the schematic cross-sectional view in Fig. 1 along A-A.
Fig. 3 is the schematic cross-sectional view in Fig. 2 along B-B.
Fig. 4 is the schematic diagram of the first embodiment of organizational pile foundation structure of the invention.
Fig. 5 is the schematic diagram of second of embodiment of organizational pile foundation structure of the invention.
In figure:
10, rock-soil layer 1, pile body
11, lower pile cutoff 12, upper pile cutoff
13, first flange disk 14, second flange disk
15, third ring flange 2, bolt
3, structure 4, supporting station are supported
5, changeover portion 51, the 4th ring flange
6, backfilling material
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.These embodiments are only used for
Illustrate the present invention, and not limitation of the present invention.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
As shown in Figures 1 to 5, the present invention provides a kind of organizational pile foundation structures.
Referring to Fig. 1 to Fig. 3, organizational pile foundation structure of the invention includes pile body 1, and pile body 1 includes lower pile cutoff 11 and upper pile cutoff
12, the material of lower pile cutoff 11 is concrete, and the material of upper pile cutoff 12 is steel, is fixedly connected between lower pile cutoff 11 and upper pile cutoff 12.
Referring to fig. 4, when pile body 1 being squeezed into rock-soil layer 10, lower pile cutoff 11 enters Deep Rock soil layer 10, and upper pile cutoff 12 enters shallow rock soil layer
10, that is, the depth for descending pile cutoff 11 to enter rock-soil layer 10 is greater than the depth that upper pile cutoff 12 enters rock-soil layer 10, that is, in rock-soil layer 10
In, lower pile cutoff 11 is located at the lower section of upper pile cutoff 12.Since lower pile cutoff 11 enters Deep Rock soil layer 10, stress is mainly axial
Power, suffered horizontal force and moment of flexure are then smaller, moreover, the stake soil side between concrete-pile and piling bar and rock-soil layer 10 hinders value phase
Difference is smaller, and therefore, lower pile cutoff 11 is made of concrete, not only can guarantee the bearing capacity of piling strtucture, but also can effectively reduce steel
The dosage of material substantially reduces the project cost of piling strtucture, and manufactures very convenient.
Preferably, the lower pile cutoff 11 of pile body 1 can be prestressed reinforced concrete construction.Further, lower pile cutoff 11 can use
Thin-wall construction, and the cross-sectional shape of lower pile cutoff 11 does not limit to, it can be to be round rectangular or quincunx, it should be according to practical need
It asks and is determined.
Preferably, the upper pile cutoff 12 of pile body 1 can also use thin-wall construction, and the cross-sectional shape of upper pile cutoff 12 is not yet
Limitation, can be rectangular or quincunx for circle, should be determined according to actual needs.
Preferably, the upper pile cutoff 12 of pile body 1 and the axis of lower pile cutoff 11 overlap, to obtain maximum axial carrying
Power.
Referring to Fig. 3, to realize lower being fixedly connected between pile cutoff 11 and upper pile cutoff 12, it is preferable that can be in lower pile cutoff 11
It is equipped with first flange disk 13 close to one end of upper pile cutoff 12, is equipped with second flange disk close to one end of lower pile cutoff 11 in upper pile cutoff 12
14, first flange disk 13 is connected to each other with second flange disk 14, to realize the connection of lower pile cutoff 11 and upper pile cutoff 12.First flange
The form of disk 13 and second flange disk 14 is not limited to, and can be L-type or T-type.First flange disk 13 and second flange disk 14
Docking mode also do not limit to, for example, first flange disk 13 can be fixedly connected with second flange disk 14 by bolt 2, certainly,
First flange disk 13 can also be attached with second flange disk 14 by other attachments.
Referring to fig. 4, in one embodiment of the invention, when pile body 1 is when being relatively large in diameter, organizational pile foundation structure can be with
One pile body 1 is only set, and directly arrangement is supported structure 3 on pile body 1.Preferably, can pile body 1 upper pile cutoff 12 it is remote
Third ring flange 15 is set on one end from lower pile cutoff 11, is connect by third ring flange 15 with structure 3 is supported, is realized single
Support of the pile body 1 to structure 3 is supported.It is supported structure 3 not limit to, such as can be blower fan tower barrel.
Referring to Fig. 5, in another embodiment of the invention, when the diameter of pile body 1 is smaller, organizational pile foundation structure can
Multiple pile bodies 1 are arranged, then organizational pile foundation structure further includes one for connecting the supporting station for being supported structure (being not shown in Fig. 5)
4, supporting station 4 is supported on the upper pile cutoff 12 of all pile bodies 1 far from one end of lower pile cutoff 11, by supporting station 4 and is supported knot
Structure connection, realizes the support to structure is supported jointly of multiple pile bodies 1.The quantity of pile body 1 is not limited to, can be according to pile body 1
Size and be supported the size and weight of structure and be designed.The form of supporting station 4 is not also limited to, and can be concrete bearing
Platform can also use steel truss structure.Preferably, a changeover portion 5 can be set on the holding table 4, in changeover portion 5 far from bearing
One the 4th ring flange 51 is arranged in one end of platform 4, then can be connect by the 4th ring flange 51 with structure is supported.Preferably, transition
Section 5 is made of Steel material.Do not limit to likewise, being supported structure, such as can be blower fan tower barrel.
To sum up, organizational pile foundation structure of the invention, it is two sections that pile body 1, which is divided to, enters the lower pile cutoff of Deep Rock soil layer 10
11 are made of concrete, collectively form a combined pile body 1 with the upper pile cutoff 12 for the steel material for entering shallow rock soil layer 10, thus
Instead of the whole-steel pile body of existing piling strtucture, the dosage of Steel material is greatly reduced.Since lower pile cutoff 11 enters deep layer rock
Soil layer 10, stress are mainly axial force, and suffered horizontal force and moment of flexure are then smaller, moreover, concrete-pile and piling bar and ground
Stake soil side resistance value difference between layer 10 is smaller, and therefore, lower pile cutoff 11 is made of concrete, both can guarantee piling strtucture
Bearing capacity, and the dosage of Steel material can be effectively reduced, the project cost of piling strtucture is substantially reduced, and manufacture very convenient.Especially
It is to provide a kind of alternative economy for the status of the universal longer dimension of pile body of China's wind-powered electricity generation industry piling strtucture
Good organizational pile foundation structure has significant economic benefit.
Based on said combination piling strtucture, the present invention also provides a kind of installation methods of organizational pile foundation structure.The present invention
Organizational pile foundation structure installation method the following steps are included:
Step 1: specifying target position to drill in rock-soil layer 10, the diameter in hole is greater than the pile body 1 of organizational pile foundation structure most
Major diameter, for being put into pile body 1.When 10 geological stability of rock-soil layer is preferable, can directly drill on rock-soil layer 10.Work as rock
When 10 geological stability of soil layer is not good enough, then first target position can be specified to squeeze into a steel pile casting in rock-soil layer 10, then in steel
It drills in casing.
Step 2: a kind of pile body of organizational pile foundation structure is entered in hole.Since the lower pile cutoff 11 of pile body 1 uses concrete system
At intensity is relatively low, and it is relatively deep to bury, and should not directly be squeezed into rock-soil layer 10 using pile monkey, therefore first refers in rock-soil layer 10
Set the goal position drilling, then a kind of pile body of organizational pile foundation structure is entered in hole, can guarantee the embedded depth of pile body 1, and guarantee
The quality of lower pile cutoff 11, for embedding rock area, economic advantages will be particularly evident.
Step 3: filling backfilling material 6 in the inner space of pile body 1 and in pile body 1 and the gap in hole.Backfilling material 6
It can be Cast-in-situ Piles in Sand-filling clay, or concrete perfusion.The backfill amount of backfilling material 6 should be according to the carrying of organizational pile foundation structure
Power needs and the actual loading feature of pile body 1 is determined.
Step 4: if drilling in step 1 using steel pile casting steel pile casting need to be extracted after completing step 3.
Step 5: filling backfilling material in the hole generated after extracting steel pile casting, the backfilling material filled at this time can also
Think backfill sand clay or concrete perfusion.
So far, organizational pile foundation structure of the present invention is installed.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of organizational pile foundation structure, which is characterized in that including pile body (1), the pile body (1) includes that material is under concrete
Pile cutoff (11) and material are the upper pile cutoff (12) of steel, are fixedly connected between lower pile section (11) and upper pile section (12), will
When the pile body (1) squeezes into rock-soil layer (10), lower pile section (11) enter Deep Rock soil layer (10), upper pile section (12) into
Enter shallow rock soil layer (10).
2. organizational pile foundation structure according to claim 1, which is characterized in that in lower pile section (11) close to upper pile
One end of section (12) is equipped with first flange disk (13), is equipped with the close to the one end of lower pile section (11) in upper pile section (12)
Two ring flanges (14), the first flange disk (13) are connected to each other with the second flange disk (14).
3. organizational pile foundation structure according to claim 1, which is characterized in that lower pile section (11) is prestressed concrete
Structure.
4. organizational pile foundation structure according to claim 1, which is characterized in that lower pile section (11) and/or upper pile
Section (12) is thin-wall construction.
5. organizational pile foundation structure according to claim 1, which is characterized in that upper pile section (12) and lower pile section
(11) axis overlaps.
6. organizational pile foundation structure according to claim 1, which is characterized in that the pile body (1) is equipped with one, on described
Pile cutoff (12) is equipped with far from the one end of lower pile section (11) for connecting the third ring flange (14) for being supported structure (3).
7. organizational pile foundation structure according to claim 1, which is characterized in that the pile body (1) is equipped with multiple, the combination
Piling strtucture further includes one for connecting the supporting station (4) for being supported structure, and the supporting station (4) is supported on all pile bodies
(1) upper pile section (12) is far from the one end of lower pile section (11).
8. a kind of installation method of organizational pile foundation structure as claimed in any of claims 1 to 7 in one of claims, which is characterized in that packet
Include following steps:
Step 1: specifying target position to drill in rock-soil layer (10), the diameter in the hole is greater than the institute of the organizational pile foundation structure
State the maximum gauge of pile body (1)；
Step 2: the pile body (1) of the organizational pile foundation structure is planted in the hole；
Step 3: filling backfilling material in the inner space of the pile body (1) and in the pile body (1) and the gap in the hole
(6)。
9. the installation method of organizational pile foundation structure according to claim 8, which is characterized in that in said step 1, first
It specifies target position to squeeze into a steel pile casting in rock-soil layer (10), then drills in the steel pile casting.
10. the installation method of organizational pile foundation structure according to claim 9, which is characterized in that after the step 3,
It is further comprising the steps of:
Step 4: extracting the steel pile casting；
Step 5: filling backfilling material in the hole generated after extracting the steel pile casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810128563.7A CN110130327A (en) | 2018-02-08 | 2018-02-08 | Organizational pile foundation structure and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810128563.7A CN110130327A (en) | 2018-02-08 | 2018-02-08 | Organizational pile foundation structure and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110130327A true CN110130327A (en) | 2019-08-16 |
Family
ID=67567447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810128563.7A Pending CN110130327A (en) | 2018-02-08 | 2018-02-08 | Organizational pile foundation structure and its installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110130327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847166A (en) * | 2019-11-02 | 2020-02-28 | 苏州市水利设计研究院有限公司 | Ecological combined pile and construction method |
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|---|---|---|---|---|
| CN1458346A (en) * | 2003-04-30 | 2003-11-26 | 立基工程有限公司 | Rock engaged combined pile and its construction method |
| JP2005155103A (en) * | 2003-11-21 | 2005-06-16 | Shimizu Corp | Hybrid pile and construction method for hybrid pile |
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| CN110847166A (en) * | 2019-11-02 | 2020-02-28 | 苏州市水利设计研究院有限公司 | Ecological combined pile and construction method |
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