CN109162281A - A kind of more anchor disk jet mixing stiffening piles - Google Patents
A kind of more anchor disk jet mixing stiffening piles Download PDFInfo
- Publication number
- CN109162281A CN109162281A CN201811029454.6A CN201811029454A CN109162281A CN 109162281 A CN109162281 A CN 109162281A CN 201811029454 A CN201811029454 A CN 201811029454A CN 109162281 A CN109162281 A CN 109162281A
- Authority
- CN
- China
- Prior art keywords
- pile
- stiffening
- anchor disk
- jet mixing
- piles
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
Abstract
The present invention relates to technical field of buildings, in particular a kind of more anchor disk jet mixing stiffening piles, including several cast-in-situ bored piles and several three axes agitating piles, the cast-in-situ bored pile top is equipped with collar tie beam, the collar tie beam is fixedly mounted on three axes agitating pile, and stiffening pile is mounted between the two neighboring cast-in-situ bored pile, dowel is mounted in each stiffening pile, the dowel runs through three axes agitating pile, and dowel includes anchoring pile, the anchoring pile is inserted into stiffening pile, steel strand wires there are two being set inside the anchoring pile, anchor disk is also equipped with inside the stiffening pile, the anchor disk is fixedly connected with the end of anchoring pile.The present invention makes full use of the soil body to mix simultaneously reinforcement by jet mixing with cement slurry and forms stiffening pile, it is oblique to apply anchoring pile, stiffened soil-cement technical application to deep foundation pit support, basement process and underground engineering field of reinforcement, the target that is safe, easy for construction, shortening the construction period and save cost of foundation stabilization and pattern foundation pit supporting structure is realized.
Description
Technical field
The present invention relates to technical field of buildings, specially a kind of more anchor disk jet mixing stiffening piles.
Background technique
China due to expanding economy, had built a considerable number of skyscraper in recent years, and the basis of skyscraper is buried
Deep generally large, embedded depth of foundation increases, to the stability for increasing building and the function for making full use of the underground space, improving building
It can be advantageous.But embedded depth of foundation increases and brings many difficulties to construction, especially in City Building dense region, field of constructing
Ground is criss-cross adjacent to existing building, road and underground utilities, therefore, the supporting of excavation slope at deep foundation pit construction heat
Point and difficulties.
Although supporting construction is the interim retaining structure of construction period, whether its type selecting, calculating and construction are correct, to applying
Safety, duration and the economic benefit of work have tremendous influence.Current most of engineerings are still stirred so that SMW engineering method fashioned iron soil cement is compound
It mixes based on pile constructing process using a large amount of type steel support.
To adapt to increasingly competitive construction market, enhance the competitiveness, forming oneself characteristic technique and technology has been
It is extremely urgent.In consideration of it, it is proposed that a kind of more anchor disk jet mixing stiffening piles.
Summary of the invention
The purpose of the present invention is to provide a kind of more anchor disk jet mixing stiffening piles, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of more anchor disk jet mixing stiffening piles, including several cast-in-situ bored piles and several three axes agitating piles, the drilling
Bored concrete pile top is equipped with collar tie beam, and the collar tie beam is fixedly mounted on three axes agitating pile, and the two neighboring cast-in-situ bored pile
Between be mounted on stiffening pile, be mounted on dowel in each stiffening pile, the dowel runs through three axes agitating pile, and dowel
Including anchoring pile, the anchoring pile is inserted into stiffening pile, is set inside the anchoring pile there are two steel strand wires, is also pacified inside the stiffening pile
Equipped with anchor disk, the anchor disk is fixedly connected with the end of anchoring pile.
As a preference of the present invention, the diameter of the stiffening pile is not less than 400mm, and stiffening pile is common using 52.5 grades
Portland cement is made, and wherein cement mixed weight is 25%, the ratio of mud 0.7, and the pressure of jet mixing is 15-25MPa.
As a preference of the present invention, the advance and retreat number of the jet mixing of the cast-in-situ bored pile increases secondary, brill than pile body
The diameter of hole pouring pile is 700mm.
As a preference of the present invention, the steel strand wires use diameter for the prestress wire of 15.2mm, intensity 1860
Grade, every beam steel strand wires are twisted by 7 steel wires, and are divided into 0.8m outside the stake of steel strand wires stretching stiffening pile, in steel strand wires
Extension on apply pretension after lock, so that dowel is connected firmly with collar tie beam.
As a preference of the present invention, inside the steel strand wires insertion stiffening pile, and the positioning of steel strand wires insertion stiffening pile misses
Difference is no more than 30mm, and elevation of bottom error is not more than 20cm, and dowel is located on the center of stiffening pile.
As a preference of the present invention, the anchoring pile is fixed by cold-extruded platen press and anchor disk.Anchoring pile and the common structure of anchor disk
At anchorage, anchorage uses QVM series anchorage.
Compared with prior art, the beneficial effects of the present invention are:
The present invention makes full use of the soil body to mix simultaneously reinforcement by jet mixing with cement slurry and forms stiffening pile, oblique to apply
Anchoring pile realizes stiffened soil-cement technical application to deep foundation pit support, basement process and underground engineering field of reinforcement ground and adds
Gu and the target that is safe, easy for construction, shortening the construction period and save cost of pattern foundation pit supporting structure.
Detailed description of the invention
Fig. 1 is diagrammatic cross-section of the present invention；
Fig. 2 is structure of the invention drawing；
Fig. 3 is enlarged drawing at A in Fig. 1 of the present invention；
Fig. 4 is dowel structural schematic diagram of the present invention.
In figure: stiffening pile 1, dowel 2, anchoring pile 20, steel strand wires 21, anchor disk 22, cast-in-situ bored pile 3, collar tie beam 4, the stirring of three axis
Stake 5.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution:
A kind of more anchor disk jet mixing stiffening piles, including several cast-in-situ bored piles 3 and several three axes agitating piles 5, drilling fill
The advance and retreat number for infusing the jet mixing of stake 3 is more secondary than pile body increase, and the diameter of cast-in-situ bored pile 3 is 700mm, in the process water
Mud answers uniform mixing, with mixing with the cement slurry of a mix should be finished before initial set, 3 top of cast-in-situ bored pile peace
Equipped with collar tie beam 4, the collar tie beam 4 is fixedly mounted on three axes agitating pile 5, and is pacified between the two neighboring cast-in-situ bored pile 3
Equipped with stiffening pile 1, the diameter of stiffening pile 1 is not less than 400mm, and stiffening pile 1 is made of 52.5 grades of ordinary portland cements,
Wherein cement mixed weight is 25%, the ratio of mud 0.7, and the pressure of jet mixing is 15-25MPa.
Dowel 2 is mounted in each stiffening pile 1, the dowel 2 runs through three axes agitating pile 5, and dowel 2 includes anchor
Stake 20, the anchoring pile 20 is inserted into stiffening pile 1, is set inside the anchoring pile 20 there are two steel strand wires 21, steel strand wires 21 use straight
Diameter is the prestress wire of 15.2mm, and intensity is 1860 grades, and every beam steel strand wires 21 are twisted by 7 steel wires, and steel twists
It is divided into 0.8m outside the stake of the stretching stiffening pile 1 of line 21, is locked after applying pretension on the extension of steel strand wires 21, make dowel
2 are connected firmly with collar tie beam 4, and stiffening pile 1 at least needs maintenance 7 days before this, use high pressure oil to the extension of steel strand wires 21
Pump and 1000KN punching jack carry out tensioning fixation, first primary with the pre- tensioning of 20% tensile load before formal tensioning, then with
50%, 100% tensile load grading tension is kept for 5 minutes under tensile load, is pressed again after observing anchor head non-displacement phenomenon
Load locking is locked, steel strand wires 21 are inserted into inside stiffening pile 1, and the position error of the insertion stiffening pile 1 of steel strand wires 21 is no more than
30mm, elevation of bottom error are not more than 20cm.Dowel 2 is located on the center of stiffening pile 1, is also equipped with inside the stiffening pile 1
Anchor disk 22, the anchor disk 22 are fixedly connected with the end of anchoring pile 20, and anchoring pile 20 is fixed by cold-extruded platen press with anchor disk 22.Anchor
Stake 20 and anchor disk 22 collectively form anchorage, which uses QVM series anchorage.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (6)
1. a kind of more anchor disk jet mixing stiffening piles, including several cast-in-situ bored piles (3) and several three axes agitating piles (5), special
Sign is: cast-in-situ bored pile (3) top is equipped with collar tie beam (4), and the collar tie beam (4) is fixedly mounted on three axes agitating pile (5)
On, and stiffening pile (1) is mounted between the two neighboring cast-in-situ bored pile (3), it is respectively mounted in each stiffening pile (1)
Have dowel (2), the dowel (2) runs through three axes agitating pile (5), and dowel (2) includes anchoring pile (20), anchoring pile (20) insertion
It in stiffening pile (1), is set inside the anchoring pile (20) there are two steel strand wires (21), the stiffening pile (1) is internal to be also equipped with anchor
Disk (22), the anchor disk (22) are fixedly connected with the end of anchoring pile (20).
2. more anchor disk jet mixing stiffening piles according to claim 1, it is characterised in that: the diameter of the stiffening pile (1)
Not less than 400mm, and stiffening pile (1) is made of 52.5 grades of ordinary portland cements, and wherein cement mixed weight is 25%, water ash
Than being 0.7, the pressure of jet mixing is 15-25MPa.
3. more anchor disk jet mixing stiffening piles according to claim 1, it is characterised in that: the cast-in-situ bored pile (3)
The advance and retreat number of jet mixing is more secondary than pile body increase, and the diameter of cast-in-situ bored pile (3) is 700mm.
4. more anchor disk jet mixing stiffening piles according to claim 1, it is characterised in that: the steel strand wires (21) are using straight
Diameter is the prestress wire of 15.2mm, and intensity is 1860 grades, and every beam steel strand wires (21) are twisted by 7 steel wires, and steel
It is divided into 0.8m outside the stake of twisted wire (21) stretching stiffening pile (1), is locked after applying pretension on the extension of steel strand wires (21)
It is fixed, so that dowel (2) is connected firmly with collar tie beam (4).
5. more anchor disk jet mixing stiffening piles according to claim 1, it is characterised in that: steel strand wires (21) insertion adds
Strength stake (1) is internal, and the position error of steel strand wires (21) insertion stiffening pile (1) is no more than 30mm, and elevation of bottom error is not more than
20cm, dowel (2) are located on the center of stiffening pile (1).
6. more anchor disk jet mixing stiffening piles according to claim 1, it is characterised in that: the anchoring pile (20) passes through cold-extruded
Platen press is fixed with anchor disk (22).Anchoring pile (20) and anchor disk (22) collectively form anchorage, and anchorage uses QVM series anchorage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029454.6A CN109162281A (en) | 2018-09-05 | 2018-09-05 | A kind of more anchor disk jet mixing stiffening piles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811029454.6A CN109162281A (en) | 2018-09-05 | 2018-09-05 | A kind of more anchor disk jet mixing stiffening piles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162281A true CN109162281A (en) | 2019-01-08 |
Family
ID=64893977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811029454.6A Pending CN109162281A (en) | 2018-09-05 | 2018-09-05 | A kind of more anchor disk jet mixing stiffening piles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162281A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835917A (en) * | 2019-10-23 | 2020-02-25 | 江苏兴厦建设工程集团有限公司 | Multidirectional rotary-spraying stirring straight-inclined alternating supporting structure and supporting method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864773A (en) * | 2010-04-14 | 2010-10-20 | 江苏江中集团有限公司 | Deep foundation pit support process |
| CN102518135A (en) * | 2011-12-29 | 2012-06-27 | 标力建设集团有限公司 | Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles |
| CN102839662A (en) * | 2012-09-26 | 2012-12-26 | 上海强劲地基工程股份有限公司 | Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting |
| CN204401614U (en) * | 2014-12-25 | 2015-06-17 | 江苏兴厦建设工程集团有限公司 | A kind of MC stiff composite pile |
| CN205875184U (en) * | 2016-06-06 | 2017-01-11 | 黄纪森 | Slant is spouted soon and is stirred stake of putting more energy into |
| CN107740425A (en) * | 2017-10-18 | 2018-02-27 | 上海宝冶集团有限公司 | Revolve cast anchor rope foundation pit supporting construction and its construction method |
| CN207092080U (en) * | 2017-02-07 | 2018-03-13 | 江苏兴厦建设工程集团有限公司 | A kind of MC stiff composite piles using high-pressure rotary jet grouting pile |
| CN209162840U (en) * | 2018-09-05 | 2019-07-26 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
-
2018
- 2018-09-05 CN CN201811029454.6A patent/CN109162281A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864773A (en) * | 2010-04-14 | 2010-10-20 | 江苏江中集团有限公司 | Deep foundation pit support process |
| CN102518135A (en) * | 2011-12-29 | 2012-06-27 | 标力建设集团有限公司 | Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles |
| CN102839662A (en) * | 2012-09-26 | 2012-12-26 | 上海强劲地基工程股份有限公司 | Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting |
| CN204401614U (en) * | 2014-12-25 | 2015-06-17 | 江苏兴厦建设工程集团有限公司 | A kind of MC stiff composite pile |
| CN205875184U (en) * | 2016-06-06 | 2017-01-11 | 黄纪森 | Slant is spouted soon and is stirred stake of putting more energy into |
| CN207092080U (en) * | 2017-02-07 | 2018-03-13 | 江苏兴厦建设工程集团有限公司 | A kind of MC stiff composite piles using high-pressure rotary jet grouting pile |
| CN107740425A (en) * | 2017-10-18 | 2018-02-27 | 上海宝冶集团有限公司 | Revolve cast anchor rope foundation pit supporting construction and its construction method |
| CN209162840U (en) * | 2018-09-05 | 2019-07-26 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835917A (en) * | 2019-10-23 | 2020-02-25 | 江苏兴厦建设工程集团有限公司 | Multidirectional rotary-spraying stirring straight-inclined alternating supporting structure and supporting method |
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