CN207553086U - Pile In Karst Area protective device - Google Patents
Pile In Karst Area protective device Download PDFInfo
- Publication number
- CN207553086U CN207553086U CN201721328936.2U CN201721328936U CN207553086U CN 207553086 U CN207553086 U CN 207553086U CN 201721328936 U CN201721328936 U CN 201721328936U CN 207553086 U CN207553086 U CN 207553086U
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- China
- Prior art keywords
- casing
- steel reinforcement
- reinforcement cage
- pile
- protective device
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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.)
- Expired - Fee Related
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- 230000001681 protective effect Effects 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 94
- 239000010959 steel Substances 0.000 claims abstract description 94
- 230000002787 reinforcement Effects 0.000 claims abstract description 82
- 238000010276 construction Methods 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 210000003205 muscle Anatomy 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000004927 clay Substances 0.000 description 4
- 238000007569 slipcasting Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of Pile In Karst Area protective devices, the Pile In Karst Area protective device includes steel reinforcement cage, casing and connection structure, the steel reinforcement cage and the casing are set in the stake holes dug in advance, the stake holes passes through solution cavity, the bottom end of the steel reinforcement cage is supported in the bottom of the stake holes, top is located at the top of the solution cavity, the casing is sheathed on the outside of the steel reinforcement cage, and the casing is fixed on by the connection structure on the steel reinforcement cage, the bottom end of the casing is located at the lower section of the solution cavity and is set with the bottom interval of the stake holes, the top of the casing is located at the top of the solution cavity, the steel reinforcement cage and the casing are fixed on by the concrete of cast in the stake holes.The utility model can be in the case of medium-and-large-sized solution cavity, it is ensured that pile foundation construction quality reduces construction cost, reduces and surrounding enviroment are destroyed and are polluted.
Description
Technical field
The utility model is related to piling Technology field, more particularly, to a kind of Pile In Karst Area protective device.
Background technology
In Bridge Pile Foundation Construction, karst phenomenon is frequently encountered.Karst phenomenon is brought very big to pile foundation concrete construction
Uncertainty brings construction quality and construction cost very big influence.In general the method for pile foundation construction processing solution cavity has
Very much, for example, backfill clay+slabstone (or clay+slabstone+cement), advance slip casting method (cement injection or cement mortar+waterglass),
Full stake casing follow-up step etc..But above method has its shortcoming, such as backfills clay+slabstone (clay+slabstone+cement) method one
As be suitable for smaller solution cavity (cavern depth is within 3m)；Slip casting method construction quality is difficult to control and has destruction and dirt to ambient enviroment
Dye (easily influences underground water and surrounding soil)；Full stake casing follow-up step refers to follow up using casing whole process, across solution cavity area, one
It is straight lower to solution cavity bottom, longer in pile foundation, and when solution cavity is in deep place, casing is because length is longer, and casing own wt is too
Weight, is not easy to lift, work progress is there are great security risk, and rolled steel dosage is big, and construction cost is higher.
Utility model content
Based on this, the utility model lies in that the defects of overcoming the prior art, provides a kind of Pile In Karst Area protective device,
It can be in the case of medium-and-large-sized solution cavity, it is ensured that pile foundation construction quality, reduce construction cost, reduce to surrounding enviroment destroy with
Pollution.
Its technical solution is as follows：
A kind of Pile In Karst Area protective device, including steel reinforcement cage, casing and connection structure, the steel reinforcement cage and the shield
Cylinder is set in the stake holes dug in advance, and the stake holes passes through solution cavity, and the bottom end of the steel reinforcement cage is supported in the bottom of the stake holes, is pushed up
End is positioned at the top of the solution cavity, and the casing is sheathed on the outside of the steel reinforcement cage, and the casing is tied by the connection
Structure is fixed on the steel reinforcement cage, and the bottom end of the casing is located at the lower section of the solution cavity and is set with the bottom interval of the stake holes
It puts, the top of the casing is located at the top of the solution cavity, and the steel reinforcement cage and the casing are fixed by the concrete of cast
In in the stake holes.
Pile In Karst Area protective device described in the utility model, including steel reinforcement cage and casing.Wherein, casing is in depth
It spends direction and passes through solution cavity area, retaining wall can be used as, effectively prevent during pile foundation construction, solution cavity area collapse hole phenomenon and filling concrete
When concrete leakage generation, ensure pile foundation be smoothed out by what is constructed during solution cavity area.Meanwhile the casing not always under
To stake holes bottom, it is fixed on steel reinforcement cage by being connected to, casing only needs that solution cavity area can be passed through in length,
Therefore, the rolled steel dosage of casing can be efficiently reduced, reduces construction cost, while reduce the weight of casing, convenient for construction.To sum up
It is found that the utility model realizes a kind of novel construction method, it can be in the feelings of medium-and-large-sized solution cavity (cavern depth is in more than 3m)
Under condition, it is ensured that pile foundation construction quality；It avoids, using full stake casing follow-up step, reducing construction cost and difficulty of construction simultaneously；And
And it reduces and surrounding enviroment is destroyed and are polluted without slip casting method.
Above-mentioned technical proposal is further described below：
The connection structure includes at least one layer of connection component in one of the embodiments, and the connection component is set on
Between the steel reinforcement cage and the casing, the connection component includes stirrup and several retainer rings, several described retainer rings
It is both secured on the inner wall of casing, and along the circumferentially-spaced arrangement of inner peripheral surface of the casing, each retainer ring is equipped with
Mounting hole, the stirrup circumferential direction are fixed on the peripheral surface of the steel reinforcement cage, and are sequentially passed through in several described retainer rings
Mounting hole.Determined by the way that the stirrup in the retainer ring and steel reinforcement cage on casing is carried out set fixed, casing is made effectively to connect with steel reinforcement cage
While connecing, straight skidding is prevented, while ensure that there is certain activity space between the two.
The retainer ring includes fixinig plate and auxiliary fixing member in one of the embodiments, and the fixinig plate is along institute
The radial direction setting of casing is stated, and one end of the fixinig plate is fixed on the inner wall of the casing, the other end is equipped with the fixation
Hole, the auxiliary fixing member are set on the outside of the fixinig plate, and described auxiliary fixing member one end is fixed on the fixinig plate, separately
One end is connect with the steel reinforcement cage.The setting of auxiliary fixing member ensures to strengthen the bonding strength between casing and steel reinforcement cage
It is firm to connect between the two.
The fixinig plate is welded with the casing in one of the embodiments, and the stirrup is welded with the steel reinforcement cage,
The auxiliary fixing member is welded with the steel reinforcement cage, to ensure to ensure bonding strength by the way of welding, while can be resisted
Concrete pressure.
If the connection component is equipped with dried layer in one of the embodiments, if connection component is along described described in dried layer
The axial arranged for interval up and down of casing, axially uniformly to be connected between realization casing and steel reinforcement cage.
Support construction is further included in one of the embodiments, and the support construction is set on the steel reinforcement cage and the shield
Between cylinder, and the support construction is circumferentially disposed along the peripheral surface of the steel reinforcement cage, the one side of the support construction with it is described
Steel reinforcement cage offsets, and another side offsets with the casing.The setting of support construction is used to support and positions casing, ensures that casing can paste
Nearly solution cavity, while make have enough protective layer thickness between the inner wall of casing and steel reinforcement cage.
The support construction is included along the axial spaced apart up and down of the steel reinforcement cage in one of the embodiments,
If dried layer support component, every layer of support component include peripheral surface along the steel reinforcement cage it is circumferentially spaced several
Supporting rib, one end of the supporting rib are fixed on the steel reinforcement cage, and the other end is used to offset with the casing；Or the support
Muscle one end is fixed on the casing, and the other end is used to offset with the steel reinforcement cage.Support component includes spaced support
Muscle while support and positioning casing is ensured, can reduce the rolled steel dosage of support component, also further mitigate weight.
The casing includes the sub- casing of more piece set gradually up and down, adjacent two institutes in one of the embodiments,
It states and is sequentially connected between sub- casing.By the way that casing is designed as sequentially connected sub- casing, casing is facilitated to install.
Overlap joint, grafting or clamping between the adjacent two sub- casings in one of the embodiments, so that sub- casing
Between there is opposite activity space, casing is enable to generate certain deflection deformation with reinforcing bar, convenient for casing integral installation, prevents from protecting
Cylinder is because stiffness is big, deflection small the phenomenon that not adapting to stake holes shape, causing card hole and can not install.
Description of the drawings
Fig. 1 is the facade structures schematic diagram of the Pile In Karst Area protective device described in the utility model embodiment；
Fig. 2 is the A-A direction views of Fig. 1；
Fig. 3 is enlarged drawing at the B of Fig. 1.
Reference sign：
10th, solution cavity, 20, steel reinforcement cage, 30, casing, 40, connection component, 41, retainer ring, 411, fixinig plate, 412, auxiliary it is solid
Determine part, 42, stirrup, 50, support component, 51, supporting rib, 560, stake holes.
Specific embodiment
It is below in conjunction with attached drawing and specifically real for the purpose of this utility model, technical solution and advantage is more clearly understood
Mode is applied, the utility model is described in further detail.It should be understood that the specific embodiments described herein
Only to explain the utility model, the scope of protection of the utility model is not limited.
It should be noted that it should be noted that when element is referred to as " being fixed on " another element, it can be direct
It is fixed on another element or can also another element be fixed on by element placed in the middle.When an element is known as
" connection " another element, it can be directly to another element or can also be connected by element placed in the middle
In another element.
As depicted in figs. 1 and 2, Pile In Karst Area protective device described in the utility model, set on the stake holes 60 dug in advance
Interior, the stake holes 60 passes through solution cavity 10.The Pile In Karst Area protective device include steel reinforcement cage 20, casing 30 (steel pile casting 30) and
Connection structure.The steel reinforcement cage 20 and the casing 30 are set in the stake holes 60, and the bottom end of the steel reinforcement cage 20 is supported in
The bottom of the stake holes 60, top are located at the top of the solution cavity 10.The casing 30 is sheathed on the outside of the steel reinforcement cage 20,
And the casing 30 is fixed on by the connection structure on the steel reinforcement cage 20.The bottom end of the casing 30 is located at the solution cavity
It 10 lower section and is set with the bottom interval of the stake holes 60, the top of the casing 30 is located at the top of the solution cavity 10.
That is, the steel reinforcement cage 20 leads directly to 60 bottom of stake holes, and the casing 30 is only needed across 10th area of solution cavity, if casing 30 is molten
10 area's upper and lower directions of hole each extends over 1m~2m.The steel reinforcement cage 20 and the casing 30 are fixed on institute by the concrete of cast
It states in stake holes 60.
Pile In Karst Area protective device described in the utility model, including steel reinforcement cage 20 and casing 30.Wherein, casing
30 depth direction pass through 10th area of solution cavity, can be used as retaining wall, effectively prevent during pile foundation construction, 10 area's collapse hole phenomenon of solution cavity and
The generation of concrete leakage during filling concrete ensures that pile foundation is smoothed out by what is constructed during 10th area of solution cavity.Meanwhile the shield
Cylinder 30 is not lower to 60 bottom of stake holes always, is fixed on steel reinforcement cage 20 by being connected to, casing 30 is only needed in length
On can pass through 10th area of solution cavity, therefore, the rolled steel dosage of casing 30 can be efficiently reduced, construction cost is reduced, subtract simultaneously
The weight of small casing 30, convenient for construction.In summary, the utility model realizes a kind of novel construction method, can be big in
In the case of type solution cavity 10 (10 depth of solution cavity is in more than 3m), it is ensured that pile foundation construction quality；It is avoided using full stake casing simultaneously
30 follow-up steps reduce construction cost and difficulty of construction；And it reduces and surrounding enviroment is destroyed and dirt without slip casting method
Dye.
In the present embodiment, the casing 30 includes the sub- casing of more piece that sets gradually up and down, sub- casing height for 1m~
2m.It is sequentially connected between two adjacent sub- casings.By the way that casing 30 is designed as sequentially connected sub- casing, facilitate shield
Cylinder 30 is installed.Optionally, other connection modes such as overlap joint, grafting or clamping between the adjacent two sub- casings so that son
Between casing there is opposite activity space, casing 30 is enable to generate certain deflection deformation with reinforcing bar, convenient for the whole peace of casing 30
Dress, prevents casing 30 from not adapting to 60 shape of stake holes because stiffness is big, deflection is small, the phenomenon that causing card hole and can not install.It needs
It is noted that connection mode such as grafting between sub- casing and clamping etc. can continue to use existing connection mode, it is only necessary to ensure
Certain activity space is kept while connection between sub- casing.
Specifically, the connection structure includes at least one layer of connection component 40, and the connection component 40 is set on the reinforcing bar
Between cage 20 and the casing 30.Incorporated by reference to Fig. 3, the connection component 40 includes stirrup 42 (reinforcing bar) and several (such as 4)
Retainer ring 41.Several described retainer rings 41 are both secured on the inner wall of casing 30, and along the inner peripheral surface week of the casing 30
To arranged for interval.Each retainer ring 41 is equipped with mounting hole, and 42 circumferential direction of stirrup is fixed on the outer of the steel reinforcement cage 20
On circumferential surface, and sequentially pass through the mounting hole in several described retainer rings 41.By by the retainer ring 41 and reinforcing bar on casing 30
Stirrup 42 on cage 20, which carries out set fixed, to be determined, and while so that the casing 30 is effectively connect with steel reinforcement cage 20, prevents straight skidding,
Ensure that there is certain activity space between the two simultaneously.Meanwhile stirrup 42 is easy to be welded on steel reinforcement cage 20.Need what is illustrated
It is that the position of retainer ring 41 and stirrup 42 can also be exchanged in other embodiments, retainer ring 41 is also fixed on steel
On muscle cage 20, stirrup 42 is fixed on the inner wall of casing 30.
Further, the retainer ring 41 includes fixinig plate 411 and auxiliary fixing member 412, and the fixinig plate 411 is along institute
The radial direction setting of casing 30 is stated, and one end of the fixinig plate 411 is fixed on the inner wall of the casing 30, the other end is equipped with institute
State mounting hole.The auxiliary fixing member 412 is set on the outside of the fixinig plate 411, and along the periphery week of the fixinig plate 411
To setting, casing structure is formed.Described 412 one end of auxiliary fixing member is fixed on the fixinig plate 411, the other end and the steel
Muscle cage 20 connects.The setting of auxiliary fixing member 412 ensures the two to strengthen the bonding strength between casing 30 and steel reinforcement cage 20
Between connect it is firm.The auxiliary fixing member 412 is trapezoidal or taper type designs, and strengthens its Auxiliary support and the effect of connection.
Optionally, the fixinig plate 411 is welded with the casing 30, and the stirrup 42 is also welded with the steel reinforcement cage 20,
The auxiliary fixing member 412 is welded with the steel reinforcement cage 20.Overlap joint full weld can be used in the concrete mode of above-mentioned welding, to ensure
Ensure bonding strength, while concrete pressure can be resisted.
In the present embodiment, if the connection component 40 is equipped with dried layer, if connection component 40 is along the shield described in dried layer
The axial arranged for interval up and down of cylinder 30.At least one layer of connection component 40 can be specifically set on every sub- casing, in axial direction
It realizes and is uniformly connected between casing 30 and steel reinforcement cage 20.
In addition, the utility model further includes support construction, the support construction is set on the steel reinforcement cage 20 and the casing
Between 30, and the support construction is circumferentially disposed along the peripheral surface of the steel reinforcement cage 20, one side and the institute of the support construction
It states steel reinforcement cage 20 to offset, another side offsets with the casing 30.The setting of support construction is used to support and positions casing 30, ensures
Casing 30 can be close to solution cavity 10, while makes have enough protective layer thickness between the inner wall of casing 30 and steel reinforcement cage 20.
Specifically, if the support construction includes supporting along the axial dried layer spaced apart up and down of the steel reinforcement cage 20
Component 50 can set 1 layer of support component 50 every 1m~1.5m.As shown in Fig. 2, every layer of support component 50 is included along institute
Several circumferentially spaced supporting ribs 41 of peripheral surface of steel reinforcement cage 20 are stated, between the supporting rib 41 in every layer of support component 50
Circumferential spacing-controllable system in 40cm~50cm.One end of the supporting rib 41 is fixed on the steel reinforcement cage 20, and the other end is used
It offsets in the casing 30；Or described 41 one end of supporting rib is fixed on the casing 30, the other end is used for and the reinforcing bar
Cage 20 offsets.From the foregoing, it will be observed that support component 50 includes spaced supporting rib 41, ensureing support and positioning the same of casing 30
When, the rolled steel dosage of support component 50 can be reduced, also further mitigates weight.It should be noted that the support construction can also adopt
It is supported with the support bar axially set, positions casing 30, several support bars are along between the peripheral surface circumferential direction of steel reinforcement cage 20
Every setting, the tube-in-tube structure that monoblock type also can be used realizes support and positioning action etc..
The construction method of Pile In Karst Area protective device described in the utility model includes the following steps：
Step 1：Determine position and the depth of solution cavity 10；
Specifically, according to geology borehole data and pile foundation construction process record, 10 position of solution cavity and depth are primarily determined.Stake
Using ultrasonic detection technology after base pore-forming, 10 position of solution cavity and depth are further determined that.The depth of stake holes 60 is more than solution cavity 10
Depth, stake holes 60 pass through solution cavity 10.
Step 2：The radial dimension of casing 30 and axial dimension are determined according to the position of solution cavity 10 and depth.
Step 3：Screwing steel bars cage 20 and casing 30 respectively, while determine position of the casing 30 on steel reinforcement cage 20, in steel
When muscle cage 20 is positioned over the bottom of stake holes 60, the casing 30 passes through the solution cavity 10 in the depth direction.
Specifically, 30 internal diameter of casing is slightly larger than Pile Diameter, and using 3mm~5mm steel plate processing and fabricatings, when processing is reserved
Opening facilitates installation.Casing 30 uses pipe joint type, is 1m~2m per knot casing height.30 longitudinal direction of casing can take takes outside hypomere
Segmented mode is connected, upper-lower section is made longitudinally can to form opposite activity space, casing 30 is enable to generate certain scratch with reinforcing bar
Degree deformation, convenient for 30 integral installation of casing, prevents casing 30 from not adapting to 60 shape of stake holes because stiffness is big, deflection is small, causes
Card hole and the phenomenon that can not install.
Steel reinforcement cage 20 corresponds to 10 upper and lower opening position of solution cavity when being inserted to 60 bottom of stake holes and lengthens 1m up and down respectively on its elevation
At~2m mark, as jacketed casing 30 boundary up and down namely position of the casing 30 on steel reinforcement cage 20 is determined.In order to subtract
Few cost of manufacture, casing 30 pass through 10th area of solution cavity namely casing not since 60 bottom of stake holes in depth direction
30 are fixed on steel reinforcement cage 20, are spaced between 60 bottom of stake holes.
Step 4：Steel reinforcement cage 20 and casing 30 are assembled, wherein, connection is installed between steel reinforcement cage 20 and casing 30
Structure, the connection structure are used to connect the casing 30 and the steel reinforcement cage 20.
Specifically, connection structure includes connection component 40, is used to fix the stirrup 42 of casing 30 in connection component 40 and consolidates
Determine ring 41 to be individually fixed in by the way of effectively welding on casing 30 and steel reinforcement cage 20, to ensure that casing 30 is fixed securely
Degree, preventing casing 30 from generating straight skidding in installation process causes discrepancy.
In addition, being installed on support construction between steel reinforcement cage 20 and casing 30, the support construction is used to support and positions shield
Cylinder 30.The support construction include support component 50, within this range every 1m~1.5m set 1 layer of support component 50, every layer
Circumferential spacing control between supporting rib 41 in support component 50 is in 40cm~50cm, to support housing casing 30.
Step 5：Decentralization installs the steel reinforcement cage 20 of casing 30, casting concrete in the stake holes 60.
Wherein, slow down speed of perfusion during concreting to 30 lower end of casing, casing is blocked using coagulation earth fall damage phenomenon
30 combine concrete initial set time, pipe laying depth, concrete fall head Comprehensive Control with hole wall gap, speed of perfusion control,
Ensure that concrete pressure should not be excessive, while can effectively close casing 30 and hole wall gap, and pipe laying phenomenon will not be caused.
It should be noted that number such as 1m~2m, 40cm~50cm mentioned by this paper are illustrating this
Embodiment, can not be as the limitation of the present embodiment.In fact, the utility model can according to practical 10 position of solution cavity and depth come
Set the length of sub- casing, the joint number of sub- casing, length of steel reinforcement cage 20 etc. and according to actual support and fixing intensity needs
Set the number of the number of plies of support component 50, the quantity of every layer of 50 supporting rib 41 of support component, the number of plies of fixation kit, retainer ring 41
Amount etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.
Claims (9)
1. a kind of Pile In Karst Area protective device, which is characterized in that including steel reinforcement cage, casing and connection structure, the reinforcing bar
Cage and the casing are set in the stake holes dug in advance, and the stake holes passes through solution cavity, and the bottom end of the steel reinforcement cage is supported in the stake
The bottom in hole, the casing are sheathed on the outside of the steel reinforcement cage, and the casing be fixed on by the connection structure it is described
On steel reinforcement cage, the bottom end of the casing is located at the lower section of the solution cavity and is set with the bottom interval of the stake holes, the casing
Top be located at the top of the solution cavity, the steel reinforcement cage and the casing are fixed on by concrete in the stake holes.
2. Pile In Karst Area protective device according to claim 1, which is characterized in that the connection structure is included at least
One layer of connection component, the connection component be set between the steel reinforcement cage and the casing, the connection component include stirrup and
Several retainer rings, several described retainer rings are both secured on the inner wall of casing, and circumferential along the inner peripheral surface of the casing
Arranged for interval, each retainer ring are equipped with mounting hole, and the stirrup circumferential direction is fixed on the peripheral surface of the steel reinforcement cage, and
Sequentially pass through the mounting hole in several described retainer rings.
3. Pile In Karst Area protective device according to claim 2, which is characterized in that the retainer ring includes fixinig plate
And auxiliary fixing member, the fixinig plate are set, and the shield is fixed in one end of the fixinig plate along the radial direction of the casing
On the inner wall of cylinder, the other end is equipped with the mounting hole, and the auxiliary fixing member is set on the outside of the fixinig plate, and one end is fixed on
On the fixinig plate, the other end is connect with the steel reinforcement cage.
4. Pile In Karst Area protective device according to claim 3, which is characterized in that the fixinig plate and the casing
Welding, the stirrup are welded with the steel reinforcement cage, and the auxiliary fixing member is welded with the steel reinforcement cage.
5. Pile In Karst Area protective device according to claim 2, which is characterized in that the connection component is equipped with several
Layer, if connection component described in dried layer is along the axial arranged for interval up and down of the casing.
6. Pile In Karst Area protective device according to claim 1, which is characterized in that support construction is further included, it is described
Support construction is set between the steel reinforcement cage and the casing, and the support construction is circumferential along the peripheral surface of the steel reinforcement cage
Setting, the one side of the support construction offset with the steel reinforcement cage, and another side offsets with the casing.
7. Pile In Karst Area protective device according to claim 6, which is characterized in that the support construction include along
If the axial spaced apart dried layer support component up and down of the steel reinforcement cage, every layer of support component are included along the reinforcing bar
Several circumferentially spaced supporting ribs of peripheral surface of cage；Wherein, one end of the supporting rib is fixed on the steel reinforcement cage,
The other end is used to offset with the casing；Or described supporting rib one end is fixed on the casing, the other end is used for and the steel
Muscle cage offsets.
8. Pile In Karst Area protective device according to any one of claim 1 to 7, which is characterized in that the casing
The sub- casing of more piece including setting gradually up and down is sequentially connected between adjacent two sub- casings.
9. Pile In Karst Area protective device according to claim 8, which is characterized in that two adjacent sub- casings
Between overlap joint, grafting or clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328936.2U CN207553086U (en) | 2017-10-13 | 2017-10-13 | Pile In Karst Area protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721328936.2U CN207553086U (en) | 2017-10-13 | 2017-10-13 | Pile In Karst Area protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207553086U true CN207553086U (en) | 2018-06-29 |
Family
ID=62673592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721328936.2U Expired - Fee Related CN207553086U (en) | 2017-10-13 | 2017-10-13 | Pile In Karst Area protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207553086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663523A (en) * | 2020-06-30 | 2020-09-15 | 北京城建北方集团有限公司 | Construction method of steel casing cast-in-place pile suitable for penetrating civil air defense structure |
-
2017
- 2017-10-13 CN CN201721328936.2U patent/CN207553086U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111663523A (en) * | 2020-06-30 | 2020-09-15 | 北京城建北方集团有限公司 | Construction method of steel casing cast-in-place pile suitable for penetrating civil air defense structure |
| CN111663523B (en) * | 2020-06-30 | 2021-07-20 | 北京城建北方集团有限公司 | Construction method of steel casing cast-in-place pile suitable for penetrating civil air defense structure |
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