CN208152015U - For the cast-in-situ bored pile under soft foundation environment - Google Patents
For the cast-in-situ bored pile under soft foundation environment Download PDFInfo
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- CN208152015U CN208152015U CN201820561925.7U CN201820561925U CN208152015U CN 208152015 U CN208152015 U CN 208152015U CN 201820561925 U CN201820561925 U CN 201820561925U CN 208152015 U CN208152015 U CN 208152015U
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- cylinder
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- situ bored
- bored pile
- soft foundation
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Abstract
The utility model discloses for the cast-in-situ bored pile under soft foundation environment, including：Pile body, it is circular steel reinforcement cage that cross section, which is arranged inside,；Cylinder is arranged vertically in steel reinforcement cage, and multiple first through hole and multiple attached branches of elasticity are arranged at intervals on the side wall of cylinder, and one end of the attached branch of elasticity is fixedly connected with the lateral wall of cylinder, and the other end passes through steel reinforcement cage, and is inserted into the soil body.The utility model can make pile body closely knit in conjunction with surrounding soil, improve frictional force and bond strength between pile body and the soil body, be conducive to the stability for improving cast-in-situ bored pile.
Description
Technical field
The utility model relates to a kind of cast-in-situ bored piles.More specifically, the utility model relates to for flabbily basic ring
Cast-in-situ bored pile under border.
Background technique
Bored concrete pile, which refers to, passes through means shapes in foundation soil such as machine drilling, steel pipe soil compaction or manpower excavation in engineering site
At stake holes, and steel reinforcement cage, concrete perfusion and the stake being made into are placed in it.
Cast-in-situ bored pile is since its construction technology is mature, bearing capacity is high, applied widely has been widely used in highway, iron
In the Structural Engineerings such as road and bridge beam basis.The large, medium and small bridge of high-grade highway and interchange viaduct use cast-in-situ bored pile substantially.
For existing cast-in-situ bored pile there is surrounding soil and pile body binding force are poor, surrounding soil hinders the friction of pile body
The lesser problem of power.
Utility model content
The purpose of the utility model is to provide for the cast-in-situ bored pile under soft foundation environment, pile body and surrounding can be made
The soil body combines frictional force and bond strength closely knit, between raising pile body and the soil body, is conducive to the stability for improving cast-in-situ bored pile.
In order to realize these purposes and other advantages according to the present utility model, provide under soft foundation environment
Cast-in-situ bored pile, including：
Pile body, it is circular steel reinforcement cage that cross section, which is arranged inside,；
Cylinder is arranged vertically in the steel reinforcement cage, and multiple are arranged at intervals on the side wall of the cylinder
One end of one through-hole and multiple attached branches of elasticity, the attached branch of elasticity is fixedly connected with the lateral wall of the cylinder, and the other end passes through described
Steel reinforcement cage, and be inserted into the soil body.
Preferably, it in the described cast-in-situ bored pile under soft foundation environment, is installed at the top of the cylinder
Baffle is arranged at intervals with multiple second through-holes on the baffle；
The cast-in-situ bored pile under soft foundation environment further includes：
Two supporting ribs, are arranged at intervals on the inside on the top of the steel reinforcement cage along the vertical direction, and the supporting rib is
Circular ring shape is simultaneously horizontally disposed, and radially there are two notches for direction setting thereon；
Supporting block is cuboid, and the branch of top is arranged in along the radial direction for the supporting rib being located above
It supports in muscle, spaced both ends are respectively arranged with a pair of of limited block along its length in supporting block, and a pair of of limited block is along perpendicular
Histogram is arranged to interval, the supporting rib that two pairs of limited blocks block to be located above respectively, and the size of limited block is less than the size of notch；
Connecting rod is arranged along the vertical direction, and the top of connecting rod is fixedly connected with the bottom of the supporting block, bottom with
The barrel body rotation connection.
Preferably, in the described cast-in-situ bored pile under soft foundation environment, the cylinder is cylindrical, and
It is coaxially disposed with the steel reinforcement cage.
Preferably, in the described cast-in-situ bored pile under soft foundation environment, the bottom of the connecting rod and institute
Stating the concrete mode that barrel body rotation connects is：
A circular third through-hole is provided on the baffle, the bottom of the connecting rod passes through the third through-hole,
Be arranged at intervals with two fixed blocks in the connecting rod along the vertical direction, two fixed blocks be located at the cylinder inside and
Outside, and the size of two fixed blocks is all larger than the size of third through-hole.
Preferably, in the described cast-in-situ bored pile under soft foundation environment, the bottom of the connecting rod and institute
Cylinder is stated to be rotatablely connected by bearing.
Preferably, in the described cast-in-situ bored pile under soft foundation environment, the attached branch of the elasticity and cylinder at
Naturally the angle being unfolded is 30-60 degree.
Preferably, in the described cast-in-situ bored pile under soft foundation environment, the end of the attached branch of elasticity is set
It is equipped with the stress brachyplast extended far from the cylinder direction, the angle between the stress brachyplast and the attached branch of elasticity is 110-
130 degree.
The utility model is include at least the following beneficial effects：
The utility model is provided with cylinder in steel reinforcement cage, and flexible attached branch is arranged on cylinder, in the attached stem cutting of elasticity
After entering in surrounding soil, the frictional force between cast-in-situ bored pile and surrounding soil can be increased.After casting concrete, can increase pile body with
Adhesion strength between surrounding soil.
The utility model is internally provided with two supporting ribs the top of steel reinforcement cage, when two pairs of limited blocks block position respectively
When the supporting rib of lower section, underlying supporting rib can prevent cylinder from moving up under the elastic force effect of the attached branch of elasticity.When
When two pairs of limited blocks block the supporting rib being located above respectively, the supporting rib being located above can prevent cylinder under the effect of gravity to
Under fall, it is easy to operate.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is structural schematic diagram when not opened according to the attached branch of elasticity of the utility model one embodiment；
Fig. 2 is shown according to the structure for the cast-in-situ bored pile under soft foundation environment of the utility model one embodiment
It is intended to；
Fig. 3 is the structural schematic diagram according to the supporting block of the utility model one embodiment, connecting rod and two fixed blocks；
Fig. 4 is the knot for the supporting rib for blocking to be located above respectively according to two pairs of limited blocks of the utility model one embodiment
Structure schematic diagram；
Fig. 5 is the structural schematic diagram according to the cylinder of the utility model one embodiment.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
It should be noted that in the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and is not 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
The limitation of the utility model.
As shown in Figures 1 to 5, the utility model is provided for the cast-in-situ bored pile under soft foundation environment, including：
Pile body 100, it is circular steel reinforcement cage 110 that cross section, which is arranged inside,；The casting concrete in drilling, shape after solidification
At pile body 100.
Cylinder 120 is arranged vertically in the steel reinforcement cage 110, and setting is spaced on the side wall of the cylinder 120
Have multiple first through hole (so that concrete can enter in cylinder 120, can be in steel reinforcement cage 110 and drilling in concrete perfusion
Between, between steel reinforcement cage 110 and cylinder 120, the inside of cylinder 120 be respectively provided with Grouting Pipe) and the attached branch 121 of multiple elasticity, elasticity it is attached
One end of branch 121 is fixedly connected with the lateral wall of the cylinder 120, and the other end passes through the steel reinforcement cage 110, and is inserted into the soil body
In.The side wall of cylinder 120 and steel reinforcement cage 110 are separated by a distance.
Cylinder 120 is inserted into pile body in construction by the cast-in-situ bored pile being used under soft foundation environment that this programme provides
In 100, cylinder 120 is pushed, the attached branch 121 of elasticity is made to be adjacent to steel reinforcement cage 110, decentralization steel reinforcement cage 110 to drilling in steel reinforcement cage 110
In after, pull up cylinder 120, after so that cylinder 120 is generated upward displacement, the attached branch 121 of elasticity passes through steel reinforcement cage 110 and is inserted into
It in surrounding soil, and is gradually opened as cylinder 120 moves up, the angle between the attached branch 121 of elasticity and cylinder 120 gradually increases
Greatly, when the attached branch 121 of elasticity is opened at natural angle, then fixed cylinder 120 is used conduit concrete perfusion into drilling, is made
Concrete is all poured inside and outside steel reinforcement cage 110 and in cylinder 120, while slurries can be arrived along attached 121 horizontal infiltration of branch of elasticity
In Pile side soil layer, it can play the role of increasing stake diameter.After the attached branch 121 of elasticity is inserted into surrounding soil, drill-pouring can be increased
Frictional force between stake and surrounding soil.After casting concrete, the adhesion strength between pile body 100 and surrounding soil can be increased.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, the cylinder 120
Top be installed with baffle 122, multiple second through-holes, the Grouting Pipe of the inside of cylinder 120 are arranged at intervals on the baffle 122
It may pass through the second through-hole；
The cast-in-situ bored pile under soft foundation environment further includes：
Two supporting ribs 130 are arranged at intervals on the inside on the top of the steel reinforcement cage 110, the branch along the vertical direction
Supportting muscle 130 is circular ring shape and horizontally disposed, and radially there are two notches 131 for direction setting thereon；Two supports
The structure of muscle 130 is identical.Cylinder 120 and the attached branch 121 of elasticity can pass through two supporting ribs 130.
Supporting block 140 is cuboid, and is arranged in along the radial direction for the supporting rib 130 being located above
In the supporting rib 130 of side, spaced both ends are respectively arranged with a pair of of limited block 141 along its length in supporting block 140,
A pair of of limited block 141 is spaced setting, the supporting rib 130 that two pairs of limited blocks 141 block to be located above respectively, limit along the vertical direction
The size of block 141 is less than the size of notch；When supporting block 140 rotates, two pairs of limited blocks 141 turn along the circumference of supporting rib 130
It is dynamic.
Connecting rod 150, is arranged along the vertical direction, and the bottom of the top of connecting rod 150 and the supporting block 140 is fixed to be connected
It connects, bottom and the cylinder 120 are rotatablely connected.
What this programme provided divides two pairs of limited blocks 141 in construction for the cast-in-situ bored pile under soft foundation environment
It is not opposite with two notches on underlying supporting rib 130, later it is each passed through underlying two limited blocks 141
Two notches on underlying supporting rib 130, rotational support block 140, blocks two pairs of limited blocks 141 respectively and is located at later
The supporting rib 130 of lower section, attached branch 121 elastic at this time are adjacent to steel reinforcement cage 110 in steel reinforcement cage 110, and cylinder 120 is indirectly fixed to steel
On muscle cage 110.After steel reinforcement cage 110 is transferred into drilling, rotational support block 140 distinguishes underlying two limited blocks 141
Two notches being placed through on the supporting rib 130 of lower section, then supporting block 140 is pulled up, make be located above two limited blocks
141 are each passed through two notches on the supporting rib 130 being located above, and are rotated further by supporting block 140, divide two pairs of limited blocks 141
The supporting rib 130 being located above is not blocked, at this point, cylinder 120 retightens on steel reinforcement cage 110.Supporting block 140 is to moving up
When dynamic, cylinder 120 generates upward displacement, and the attached branch 121 of elasticity passes through steel reinforcement cage 110 and is inserted into surrounding soil, and with
Cylinder 120 is moved up and is gradually opened, and the angle between the attached branch 121 of elasticity and cylinder 120 is gradually increased, until the attached branch of elasticity
121 open at natural angle.Conduit concrete perfusion into drilling is used later, is made inside and outside steel reinforcement cage 110 and in cylinder 120
It is all poured concrete, while slurries can play along attached 121 horizontal infiltration of branch of elasticity into Pile side soil layer and increase stake diameter
Effect.After the attached branch 121 of elasticity is inserted into surrounding soil, the frictional force between cast-in-situ bored pile and surrounding soil can be increased.It pours
After concrete, the adhesion strength between pile body 100 and surrounding soil can be increased.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, the cylinder 120
For cylindrical, and it is coaxially disposed with the steel reinforcement cage 110.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, the connecting rod
The concrete mode that 150 bottom is rotatablely connected with the cylinder 120 is：
A circular third through-hole is provided on the baffle 122, the bottom of the connecting rod 150 passes through the third
Through-hole is arranged at intervals with two fixed blocks 151 in the connecting rod 150 along the vertical direction, and two fixed blocks 151 are located at institute
The inside and outside of cylinder 120 is stated, and the size of two fixed blocks 151 is all larger than the size of third through-hole.Connecting rod 150 in this way
It can be rotated in third through-hole, when supporting block 140 is fixed on a certain supporting rib 130, cylinder 120 can not be moved up and down, in this way
Cylinder 120 is capable of fixing at the desired position.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, the connecting rod
150 bottom and the cylinder 120 are rotatablely connected by bearing.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, and the elasticity is attached
Branch 121 is 30-60 degree at the angle being unfolded naturally with cylinder 120.When the attached branch 121 of elasticity is adjacent to steel reinforcement cage in steel reinforcement cage 110
When 110, small when angle between the attached branch 121 of elasticity and cylinder 120 than being unfolded naturally, steel reinforcement cage 110 limits the attached branch 121 of elasticity and opens up
It opens, when elastic attached branch 121 is unfolded, the gap between the transverse bar and vertical muscle of steel reinforcement cage 110, and be anchored in surrounding soil.To
After casting concrete, steel reinforcement cage 110, cylinder 120, the attached branch 121 of elasticity and surrounding soil form entirety.The attached branch 121 of elasticity can increase
The anchor force of big pile body 100.
In another technical solution, described is used in the cast-in-situ bored pile under soft foundation environment, and the elasticity is attached
The end of branch 121 is provided with the stress brachyplast 123 extended far from 120 direction of cylinder, the stress brachyplast 123 and the bullet
Angle between the attached branch 121 of property is 110-130 degree.After generating upward displacement in cylinder 120, stress brachyplast 123 is native around
Under the extruding of body, the attached branch 121 of elasticity is made to be easier to open from cylinder 120.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (7)
1. for the cast-in-situ bored pile under soft foundation environment, which is characterized in that including：
Pile body, it is circular steel reinforcement cage that cross section, which is arranged inside,；
Cylinder is arranged vertically in the steel reinforcement cage, and it is logical that multiple first are arranged at intervals on the side wall of the cylinder
One end of hole and multiple attached branches of elasticity, the attached branch of elasticity is fixedly connected with the lateral wall of the cylinder, and the other end passes through the reinforcing bar
Cage, and be inserted into the soil body.
2. as described in claim 1 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the top of the cylinder
Portion is installed with baffle, and multiple second through-holes are arranged at intervals on the baffle；
The cast-in-situ bored pile under soft foundation environment further includes：
Two supporting ribs, are arranged at intervals on the inside on the top of the steel reinforcement cage along the vertical direction, and the supporting rib is annulus
Shape is simultaneously horizontally disposed, and radially there are two notches for direction setting thereon；
Supporting block is cuboid, and the supporting rib of top is arranged in along the radial direction for the supporting rib being located above
In, spaced both ends are respectively arranged with a pair of of limited block along its length in supporting block, and a pair of of limited block is along vertical side
It is arranged to interval, the supporting rib that two pairs of limited blocks block to be located above respectively, the size of limited block is less than the size of notch；
Connecting rod is arranged along the vertical direction, and the top of connecting rod is fixedly connected with the bottom of the supporting block, bottom with it is described
Barrel body rotation connection.
3. as described in claim 1 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the cylinder is circle
Cylinder shape, and be coaxially disposed with the steel reinforcement cage.
4. as claimed in claim 2 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the connecting rod
The concrete mode that bottom is connect with the barrel body rotation is：
A circular third through-hole is provided on the baffle, the bottom of the connecting rod passes through the third through-hole, described
It is arranged at intervals with two fixed blocks in connecting rod along the vertical direction, two fixed blocks are located at the inside of the cylinder and outer
Portion, and the size of two fixed blocks is all larger than the size of third through-hole.
5. as claimed in claim 2 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the connecting rod
Bottom and the cylinder are rotatablely connected by bearing.
6. as described in claim 1 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the attached branch of elasticity
With cylinder at the angle being unfolded naturally be 30-60 degree.
7. as claimed in claim 6 for the cast-in-situ bored pile under soft foundation environment, which is characterized in that the attached branch of elasticity
End be provided with far from the cylinder direction extend stress brachyplast, the folder between the stress brachyplast and the attached branch of elasticity
Angle is 110-130 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561925.7U CN208152015U (en) | 2018-04-19 | 2018-04-19 | For the cast-in-situ bored pile under soft foundation environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561925.7U CN208152015U (en) | 2018-04-19 | 2018-04-19 | For the cast-in-situ bored pile under soft foundation environment |
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| CN208152015U true CN208152015U (en) | 2018-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172976A (en) * | 2019-05-08 | 2019-08-27 | 中国建筑第六工程局有限公司 | A kind of anti-levitating device of fluking type steel reinforcement cage |
-
2018
- 2018-04-19 CN CN201820561925.7U patent/CN208152015U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172976A (en) * | 2019-05-08 | 2019-08-27 | 中国建筑第六工程局有限公司 | A kind of anti-levitating device of fluking type steel reinforcement cage |
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