CN106400783B - The construction method of bored concrete pile is made of expansion steel reinforcement cage - Google Patents
The construction method of bored concrete pile is made of expansion steel reinforcement cage Download PDFInfo
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- CN106400783B CN106400783B CN201610657075.6A CN201610657075A CN106400783B CN 106400783 B CN106400783 B CN 106400783B CN 201610657075 A CN201610657075 A CN 201610657075A CN 106400783 B CN106400783 B CN 106400783B
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- reinforcement cage
- steel reinforcement
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- 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 building fields, and in particular to the construction method of bored concrete pile is made of expansion steel reinforcement cage, includes the following steps：1st, steel reinforcement cage is prepared：Design calculates steel reinforcement cage size, is produced by size steel reinforcement cage；Steel reinforcement cage need to stretch the position of muscle in the top indicator of steel reinforcement cage after preparing, collapse stretching, extension muscle；2nd, pile hole, makes between the internal diameter of stake holes and the outer diameter of steel reinforcement cage that there are certain intervals；3rd, side opening is opened, using broaching equipment, opens up multiple side openings on the side wall of stake holes, the vertical height of side opening is more than the extension segment length, and in the position of stake holes top indicator side opening and sets up the absolute altitude of side opening；4th, steel reinforcement cage is hung：Steel reinforcement cage is hung above stake holes, the position of adjustment steel reinforcement cage is rotated during handling so that the label of the label and side opening at the top of stake holes of the top stretching, extension muscle of steel reinforcement cage aligns；Steel reinforcement cage is put down, after steel reinforcement cage is made slowly to be inserted into stake holes, stretching, extension muscle is unfolded；5th, casting concrete pile.
Description
Technical field
The present invention relates to building fields, and in particular to the construction method of bored concrete pile is made of expansion steel reinforcement cage.
Background technology
Pilework is the foundation structure generally used in the buildings such as house, highway, bridge and harbour.Wherein, friction pile is
By stake side frictional resistance support vertical load stake, from the point of view of the principle of friction pile, pile side friction remove with soil property, apply
Work technique, material of body of a pile etc. have outside the Pass, also directly related with the concaveconvex shape of stake cross-sectional circumference perimeter and stake side surface.It is and conventional
The cross sectional shape of reinforced concrete pile is constant along longitudinal direction, and cross sectional shape is also simple rectangular or round, in this way, conventional steel
If reinforced concrete friction pile will obtain higher vertical bearing capacity, only by increasing, stake is long to improve side friction.But
Stake is long arbitrarily to increase, because project cost is not only significantly increased, but also the long slenderness ratio in by related design specification of stake is limited
System.For example, a kind of multiple holes grouting pipe shaped pile disclosed in CN104179174A, sets injected hole, by concrete in pile pile side wall
The friction coefficient to form Seed harvest to improve side wall is overflowed from injected hole, so as to improve frictional resistance, however, being free of in the Seed harvest
There is reinforcing bar, Seed harvest is more crisp, is easily broken under high intensity pressure, so as to influence the load performance of stake.
Invention content
The purpose of the present invention is to solve the problems in background technology, provides a kind of use expansion steel reinforcement cage and be made
The construction method of bored concrete pile.
The present invention above-mentioned technical purpose technical scheme is that：
The construction method of bored concrete pile is made of expansion steel reinforcement cage, includes the following steps：
Step 1 prepares steel reinforcement cage：Design calculates steel reinforcement cage size, is produced by size steel reinforcement cage；The steel reinforcement cage includes master
Muscle and stirrup are hinged with stretching, extension muscle on the stirrup, and the stretching, extension muscle includes extension section and linkage section, and the linkage section is arranged on
The root of muscle is stretched, the extension section stretches to the outside of the steel reinforcement cage cage body, and the stretching, extension muscle is hinged on hoop by linkage section
On muscle, fake is provided in the extension section, is provided with to tie up the rope of stretching, extension muscle in fake；After prepared by steel reinforcement cage
The position of muscle need to be stretched, and take out guy tightening in the top indicator of steel reinforcement cage, collapse stretching, extension muscle；
Step 2, pile hole, make between the internal diameter of stake holes and the outer diameter of steel reinforcement cage that there are certain intervals；
Step 3 opens side opening, and using broaching equipment, multiple side openings, the vertical height of side opening are opened up on the side wall of stake holes
More than the extension segment length, and in the position of stake holes top indicator side opening and set up the absolute altitude of side opening；
Step 4 hangs steel reinforcement cage：Steel reinforcement cage is hung above stake holes, the position of adjustment steel reinforcement cage is rotated during handling,
So that the label of the label and side opening at the top of stake holes of the top stretching, extension muscle of steel reinforcement cage aligns, keep stretching simultaneously during handling
Muscle is in rounding state；Steel reinforcement cage is put down, steel reinforcement cage is made slowly to be inserted into stake holes, the absolute altitude of corresponding side opening hangs onto steel reinforcement cage
Specified altitude assignment, after reaching absolute altitude, stretching, extension muscle is unfolded in payout；
Step 5, casting concrete pile.
Preferably, the production method of steel reinforcement cage is in the step 1：1. it is for use to make several stretching, extension muscle；2. by long steel
Muscle is placed on moulding bed and positions, and main reinforcement is made；3. bar dowel is enclosed in outside main reinforcement, while the linkage section of muscle will be stretched through short
On reinforcing bar, then bar dowel and main reinforcement are welded, form stirrup.
Preferably, one end of the rope is provided with stopper, draw-string is provided on the stopper, the rope
The other end sequentially passes through the fake in every layer of stretching, extension muscle group.
Preferably, the linkage section includes the lengths of rebar in the middle part of arch steel and the stretching, extension muscle, the arch steel
Two endpoints be separately fixed at the both ends of the lengths of rebar so that linkage section forms the annular region being closed.
Preferably, the linkage section is open ring structure, the both ends of split ring are connected respectively with extension section and positioning section.
Preferably, the linkage section is spiral coil, the both ends of spiral coil are connected respectively with extension section and positioning section.
Preferably, the preparation method of the stretching, extension muscle is：1. by a bar bending camber；2. by arc after bending
Two endpoints of shape reinforcing bar are welded in a straight steel bar；3. weld fake in one end far from linkage section.
Preferably, the preparation method of the stretching, extension muscle is：A straight steel bar is taken, one end therein is bent to one
Open ring structure welds fake in the other end.
Preferably, the preparation method of the stretching, extension muscle is：A straight steel bar is taken, one end is carried out spiral curved
Song, bending part form linkage section, and fake is welded in its other end.
In conclusion beneficial effects of the present invention：
1. the construction method of the present invention that bored concrete pile is made of expansion steel reinforcement cage is set in side surface and stretched
Muscle increases the frictional force of pile body side wall, so as to reduce driving depth, reduces piling construction cost.
2. the construction method of the present invention that bored concrete pile is made of expansion steel reinforcement cage stretches the movable property of muscle,
It does not need to additionally increase stake holes diameter, while increase side wall stress performance.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the use schematic diagram of the present invention；
Fig. 3 is the structure chart that muscle is stretched in the present invention；
Fig. 4 is the structure chart that muscle is stretched in the embodiment of the present invention 2；
Fig. 5 is the structure chart that muscle is stretched in the embodiment of the present invention 3.
Specific embodiment
Specific examples below is only explanation of the invention, is not limitation of the present invention, art technology
Personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as
It is all protected in scope of the presently claimed invention by Patent Law.
With embodiment, the present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
According to Fig. 1, Fig. 2, Fig. 3, the construction method of bored concrete pile is made of expansion steel reinforcement cage, including following step
Suddenly：
Step 1 prepares steel reinforcement cage：Design calculates steel reinforcement cage size, is produced by size steel reinforcement cage；Steel reinforcement cage includes main reinforcement 1
With stirrup 2, stretching, extension muscle 3 is hinged on stirrup 2, stretching, extension muscle 3 includes extension section 31 and linkage section 32, and linkage section 32 is arranged on stretching, extension
The root of muscle 3, extension section 31 stretch to the outside of steel reinforcement cage cage body, and stretching, extension muscle 3 is hinged on by linkage section 32 on stirrup 2, extension
Fake 311 is provided in section 31, is provided with to tie up the rope 5 of stretching, extension muscle 3 in fake 311, one end of rope 5 is provided with resistance
Block 51, draw-string 52 is provided on stopper 51, and the other end of rope 5 sequentially passes through the fake 311 in every layer of stretching, extension muscle group；
The production method of steel reinforcement cage is：1. it is for use to make several stretching, extension muscle 3；It is positioned 2. long reinforcing bar is placed on moulding bed,
Main reinforcement 1 is made；3. bar dowel is enclosed in outside main reinforcement 1, while then the linkage section 32 for stretching muscle 3 will through on bar dowel
Bar dowel is welded with main reinforcement 1, forms stirrup 2；
Shown according to fig. 3, linkage section 32 includes arch steel and stretches the lengths of rebar at 3 middle part of muscle, two of arch steel
Endpoint is separately fixed at the both ends of lengths of rebar so that linkage section 32 forms the annular region being closed.Stretch the preparation method of muscle 3
For：1. by a bar bending camber；2. two endpoints of arch steel after bending are welded in a straight steel bar；
3. weld fake 311 in one end far from linkage section 32；
Steel reinforcement cage need to stretch the position of muscle 3, and take out guy tightening 5 after preparing in the top indicator of steel reinforcement cage, make to stretch
Exhibition muscle 3 collapses；
Step 2, pile hole, make between the internal diameter of stake holes and the outer diameter of steel reinforcement cage that there are certain intervals；
Step 3 opens side opening, using broaching equipment, multiple side openings is opened up on the side wall of stake holes, the vertical height of side opening is more than
31 length of extension section, and in the position of stake holes top indicator side opening and set up the absolute altitude of side opening；
Step 4 hangs steel reinforcement cage：Steel reinforcement cage is hung above stake holes, the position of adjustment steel reinforcement cage is rotated during handling,
So that the label of the label and side opening at the top of stake holes of the top stretching, extension muscle 3 of steel reinforcement cage aligns, keep stretching simultaneously during handling
Exhibition muscle 3 is in rounding state；Steel reinforcement cage is put down, steel reinforcement cage is made slowly to be inserted into stake holes, the absolute altitude of corresponding side opening hangs steel reinforcement cage
Specified altitude assignment is put into, after reaching absolute altitude, stretching, extension muscle 3 is unfolded in payout 5；
Step 5, casting concrete pile.
Embodiment 2：
In above-described embodiment 1 the difference lies in, according to Fig. 4, linkage section 32 be open ring structure, the two of split ring
End is connected respectively with extension section 31 and positioning section.Stretching, extension muscle 3 preparation method be：A straight steel bar is taken, by one end therein
An open ring structure is bent to, fake 311 is welded in the other end.
Embodiment 3：
In above-described embodiment 1, the difference lies according to Fig. 5, linkage section 32 is spiral coil, and the both ends of spiral coil are divided
It is not connected with extension section 31 and positioning section.Stretching, extension muscle 3 preparation method be：A straight steel bar is taken, one end is subjected to spiral
Formula is bent, and bending part forms linkage section 32, and fake 311 is welded in its other end.
Claims (9)
1. the construction method of bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that include the following steps：
Step 1, steel reinforcement cage is prepared：Design calculates steel reinforcement cage size, is produced by size steel reinforcement cage；The steel reinforcement cage includes master
Muscle（1）And stirrup（2）, the stirrup（2）On be hinged with stretching, extension muscle（3）, the stretching, extension muscle（3）Including extension section（31）And connection
Section（32）, the linkage section（32）It is arranged on stretching, extension muscle（3）Root, the extension section（31）Stretch to the steel reinforcement cage cage body
Outside, the stretching, extension muscle（3）Pass through linkage section（32）It is hinged on stirrup（2）On, the extension section（31）On be provided with fake
（311）, fake（311）It is inside provided with to tie up stretching, extension muscle（3）Rope（5）；Steel reinforcement cage need to be in steel reinforcement cage after preparing
Top indicator stretching, extension muscle（3）Position, and take out guy tightening（5）, make stretching, extension muscle（3）It collapses；
Step 2, pile hole, makes between the internal diameter of stake holes and the outer diameter of steel reinforcement cage that there are certain intervals；
Step 3, side opening is opened, using broaching equipment, multiple side openings are opened up on the side wall of stake holes, and in stake holes top indicator side
The position in hole and the absolute altitude for setting up side opening；
Step 4, steel reinforcement cage is hung：Steel reinforcement cage is hung above stake holes, the position of adjustment steel reinforcement cage is rotated during handling so that
The top stretching, extension muscle of steel reinforcement cage（3）Label and stake holes at the top of the label of side opening align, keep stretching simultaneously during handling
Muscle（3）In rounding state；Steel reinforcement cage is put down, steel reinforcement cage is made slowly to be inserted into stake holes, the absolute altitude of corresponding side opening hangs steel reinforcement cage
Specified altitude assignment is put into, after reaching absolute altitude, payout（5）, make stretching, extension muscle（3）Expansion；
Step 5, casting concrete pile.
2. the construction method according to claim 1 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
The production method of steel reinforcement cage is in step 1：1. make several stretching, extension muscle（3）For use；It is positioned 2. long reinforcing bar is placed on moulding bed,
Main reinforcement is made（1）；3. bar dowel is enclosed in main reinforcement（1）Outside, while muscle will be stretched（3）Linkage section（32）Through bar dowel
On, then by bar dowel and main reinforcement（1）Welding forms stirrup（2）.
3. the construction method according to claim 2 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Rope（5）One end be provided with stopper（51）, the stopper（51）On be provided with draw-string（52）, the rope（5）It is another
One end sequentially passes through the fake in every layer of stretching, extension muscle group（311）.
4. the construction method according to claim 3 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Linkage section（32）Including arch steel and the stretching, extension muscle（3）The lengths of rebar at middle part, two endpoints difference of the arch steel
It is fixed on the both ends of the lengths of rebar so that linkage section（32）Form the annular region being closed.
5. the construction method according to claim 3 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Linkage section（32）For open ring structure, the both ends of split ring respectively with extension section（31）It is connected with positioning section.
6. the construction method according to claim 3 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Linkage section（32）For spiral coil, the both ends of spiral coil respectively with extension section（31）It is connected with positioning section.
7. the construction method according to claim 4 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Stretch muscle（3）Preparation method be：1. by a bar bending camber；2. two endpoints of arch steel after bending are welded
It is connected in a straight steel bar；3. far from linkage section（32）One end welding fake（311）.
8. the construction method according to claim 5 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Stretch muscle（3）Preparation method be：A straight steel bar is taken, one end therein is bent into an open ring structure, another
End welding fake（311）.
9. the construction method according to claim 6 that bored concrete pile is made of expansion steel reinforcement cage, which is characterized in that described
Stretch muscle（3）Preparation method be：A straight steel bar is taken, one end is subjected to twisted, bending part forms connection
Section（32）, fake is welded in its other end（311）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610657075.6A CN106400783B (en) | 2016-08-12 | 2016-08-12 | The construction method of bored concrete pile is made of expansion steel reinforcement cage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610657075.6A CN106400783B (en) | 2016-08-12 | 2016-08-12 | The construction method of bored concrete pile is made of expansion steel reinforcement cage |
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| CN106400783A CN106400783A (en) | 2017-02-15 |
| CN106400783B true CN106400783B (en) | 2018-07-03 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487239B (en) * | 2018-05-16 | 2023-07-14 | 山东建筑大学 | Cloth bag pile structure with expandable reinforcement cage and construction process |
| CN108677930A (en) * | 2018-08-07 | 2018-10-19 | 河南三建建设集团有限公司 | A kind of anti-corrosion centering structure of hole pile cages and its application |
| CN109898501B (en) * | 2019-04-17 | 2021-08-06 | 中铁上海设计院集团有限公司 | Construction method of pretensioned prestressed pile under low-clearance condition |
| CN111926803B (en) * | 2020-07-25 | 2022-05-10 | 广东万信建设工程科技有限公司 | Cast-in-situ bored pile and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961253A (en) * | 1994-12-05 | 1999-10-05 | Okawa; Shogen | Pile head dresser, pile head dressing method, and, placement of cast-in-place concrete piles |
| CN102061699A (en) * | 2010-12-02 | 2011-05-18 | 上海城建（集团）公司 | Reinforcing bar of bottom-reamed bored pile and construction method thereof |
| CN103161154A (en) * | 2013-04-15 | 2013-06-19 | 合肥建工集团有限公司 | Distribution and application of pile foundation well squeezed bearing disk steel bars |
| CN103850252A (en) * | 2014-03-03 | 2014-06-11 | 江苏建筑职业技术学院 | Openable skirt type steel reinforcement cage of reamed pile |
-
2016
- 2016-08-12 CN CN201610657075.6A patent/CN106400783B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961253A (en) * | 1994-12-05 | 1999-10-05 | Okawa; Shogen | Pile head dresser, pile head dressing method, and, placement of cast-in-place concrete piles |
| CN102061699A (en) * | 2010-12-02 | 2011-05-18 | 上海城建（集团）公司 | Reinforcing bar of bottom-reamed bored pile and construction method thereof |
| CN103161154A (en) * | 2013-04-15 | 2013-06-19 | 合肥建工集团有限公司 | Distribution and application of pile foundation well squeezed bearing disk steel bars |
| CN103850252A (en) * | 2014-03-03 | 2014-06-11 | 江苏建筑职业技术学院 | Openable skirt type steel reinforcement cage of reamed pile |
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