CN206800481U - Static load pile crown protection device and static loading experiment system - Google Patents
Static load pile crown protection device and static loading experiment system Download PDFInfo
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- CN206800481U CN206800481U CN201720510080.4U CN201720510080U CN206800481U CN 206800481 U CN206800481 U CN 206800481U CN 201720510080 U CN201720510080 U CN 201720510080U CN 206800481 U CN206800481 U CN 206800481U
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- pile crown
- banding
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- static load
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Abstract
The utility model provides a kind of static load pile crown protection device and static loading experiment system, is related to the technical field of architectural engineering, the static load pile crown protection device, including banding part and reinforcement structure；The banding part includes multiple banding portions; each banding portion both sides are provided with the connecting portion of protrusion; the connecting portion head and the tail in the multiple banding portion are sequentially connected; for being enclosed on pile crown lateral wall; and banding; static load pile crown protection device is acted on the banding of pile crown, the circumferential deformation of pile crown can be limited, so as to prevent crack in pile crown；The reinforcement structure is arranged on banding portion and the joint of connecting portion, for connecting portion and banding portion apical grafting, to strengthen the intensity of connecting portion, preventing the connecting portion from relative bending occurs with banding portion, so as to cause static load pile crown protection device to loosen respectively.
Description
Technical field
The technical field of architectural engineering is the utility model is related to, more particularly, to a kind of static load pile crown protection device and static load
Experimental system.
Background technology
Concrete-pile is mixed and stirred by rubble, aggregate chips, sand, flyash mixed cement plus water, is had made of various forming machinery
The variable intensity stake of some strength.Concrete-pile can make full use of the bearing capacity collective effect of inter-pile soil, and can transmit load and arrive
In deep foundation base, there is preferable technical performance and economic effect.
With《Building foundation treatment technical specification》(JGJ79-2012) implementation, concrete-pile Bearing Capacity of Composite Foundation are tested
Acceptance test, which does not require nothing more than, carries out Bearing Capacity of Composite Foundation static test, and also requirement must carry out reinforcement single pile vertical resistance pressure carrying
Power static test.
Because urban land is nervous all the more, the commercialization of 30 multilayers and civil buildings also generally use concrete-pile compoundly
Base, the bearing capacity of single pile more and more higher of concrete-pile, diameter 400mm concrete-pile single pile vertical resistance pressure bearing capacity are special
Value indicative usually reaches more than 100 tons.Because finder charge is big, concrete stake top does not have concrete-pile single pile bearing capacity
Arrangement of reinforcement, stake top concrete destruction is usually caused during experiment.
It is always the whether successful key link of single pile compression dead load test that the pile cover of single-pile vertical orientation static test, which is reinforced, is passed
System method is to carry out arrangement of reinforcement to stake top concrete before static test to do pile cover reinforcing, and pile cover concrete needs to conserve, and forms stake
Tested after being conserved 15-28 days after cap, this method time length；On the other hand, pile cover concrete is after static test terminates,
Also need to remove, have high labor costs；Pile cover armored concrete as a temperature pier structure during static test, it is invisible it
In add the cost of static test.
Utility model content
The purpose of this utility model is to provide a kind of static load pile crown protection device and static loading experiment system, quiet to alleviate
Experiment is carried by the way of arrangement of reinforcement is carried out to stake top concrete and does pile cover reinforcing, pile cover concrete preparation time length；Pile cover coagulation
Soil is removed laborious after static test terminates；The technical problem that can not be reused.
Static load pile crown protection device provided by the utility model, including banding part and reinforcement structure；The banding part includes
Multiple banding portions, each banding portion both sides are provided with the connecting portion of protrusion, and the connecting portion head and the tail in the multiple banding portion connect successively
Connect, for being enclosed on pile crown lateral wall, and banding；
The reinforcement structure is arranged on banding portion and the joint of connecting portion, for being pushed up respectively with connecting portion and banding portion
Connect, to strengthen the intensity of connecting portion.
Further, the number in the banding portion is two.
Further, it is provided with through hole on the connecting portion；The static load pile crown protection device includes bolts and nuts, institute
State after bolt passes through the through hole on the two neighboring connecting portion and coordinate with the nut, for connecting the two neighboring banding
Portion.
Further, the nut of the bolt is polygon, and is correspondingly arranged on the connecting portion of banding portion one end
For accommodating the hole slot of the nut, during for preventing rotating nuts, the bolt relatively rotates.
Further, the reinforcement structure is multiple spaced wedge-shaped reinforcing plates, and the wedge-shaped reinforcing plate is distinguished
Outer wall perpendicular to the connecting portion Yu banding portion.
Further, the through hole is arranged alternately with wedge-shaped reinforcing plate.
Further, the reinforcement structure is wedge, and the wedge is integrally formed with the connecting portion and banding portion,
The static load pile crown protection device includes bolt, and through hole is provided with the wedge, and the through hole is provided with and the bolt
Corresponding internal thread.
Further, skid resistant course is provided with banding portion inwall, the skid resistant course is used to increase the static load pile crown
Frictional force between protection device and the pile crown.
Further, the static load pile crown protection device includes arc spacer corresponding with banding portion, the arc spacer
It is fixed on banding portion inwall.
Static loading experiment system provided by the utility model, including above-mentioned static load pile crown protection device.
Static load pile crown protection device provided by the utility model, including banding part and reinforcement structure, the banding part include
Multiple banding portions, each banding portion both sides are provided with the connecting portion of protrusion, after multiple banding portions are connected by connecting portion, banding portion
It can closely be fitted in the side wall of pile crown, and apply the pressure of ecto-entad to pile crown.Pile crown top is carrying out static load examination
When testing, because being made pile crown produce circumferentially outside deformation tendency, static load pile crown protection device pair by huge extruding force
The banding effect of pile crown, can limit the circumferential deformation of pile crown, so as to prevent crack in pile crown.The reinforcement structure is arranged on banding
Portion and the joint of connecting portion, for connecting portion and banding portion apical grafting, to strengthen the intensity of connecting portion, preventing the company respectively
With banding portion relative bending occurs for socket part, and so as to cause static load pile crown protection device to loosen, static load pile crown protection device is no longer tight
The inwall of pile crown is pasted, pile crown just has the amount of space of deformation, so reinforcement structure can effectively play a part of fastening.
Static loading experiment system provided by the utility model, including above-mentioned static load pile crown protection device.Pile crown top is being entered
During row static test, because being made pile crown produce circumferentially outside deformation tendency by huge extruding force, static load pile crown is protected
Protection unit is acted on the banding of pile crown, the circumferential deformation of pile crown can be limited, so as to prevent crack in pile crown.The reinforcement structure is set
The joint in banding portion and connecting portion is put, for connecting portion and banding portion apical grafting, to strengthen the intensity of connecting portion, preventing respectively
Only with banding portion relative bending occurs for the connecting portion, so as to cause static load pile crown protection device to loosen, static load pile crown protection dress
The inwall for being no longer close to pile crown is put, pile crown just has the amount of space of deformation, so reinforcement structure can effectively play fastening
Effect.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the static load pile crown protection device front view that the utility model embodiment 1 provides；
Fig. 2 is the sectional view at location A in Fig. 1；
Fig. 3 is the static load pile crown protection device left view that the utility model embodiment 1 provides；
Fig. 4 is the schematic diagram for the static load pile crown protection device connecting portion that the utility model embodiment 1 provides；
Fig. 5 is another static load pile crown protection device front view that the utility model embodiment 1 provides；
Fig. 6 is the static load pile crown protection device front view that the utility model embodiment 2 provides；
Fig. 7 is the sectional view at B location in Fig. 5；
Fig. 8 is the schematic diagram for the static load pile crown protection device connecting portion that the utility model embodiment 2 provides.
Icon：100- bandings portion；200- connecting portions；310- wedge shape reinforcing plates；320- wedges；400- through holes；410- holes
Groove；510- bolts；520- nuts；600- arc spacers.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, such as occur term " " center ", " on ", " under ", " left side ",
" right side ", " vertical ", " level ", " interior ", " outer " etc., its orientation indicated or position relationship are based on orientation shown in the drawings or position
Relation is put, description the utility model is for only for ease of and simplifies description, rather than indicate or imply signified device or element
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This
Outside, such as there is term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or implying relatively heavy
The property wanted.
The utility model provides a kind of static load pile crown protection device, multiple embodiments is given below the utility model is carried
The structure of the static load pile crown protection device of confession is described in detail.
Embodiment 1
Static load pile crown protection device provided by the utility model, including banding part and reinforcement structure, the banding part include
Multiple banding portions 100, each both sides of banding portion 100 are provided with the connecting portion 200 of protrusion, and multiple banding portions 100 pass through connecting portion
After 200 connections, banding portion 100 closely can be fitted in the side wall of pile crown, and applies the pressure of ecto-entad to pile crown.Stake
Head top is when carrying out static test, because being made pile crown produce circumferentially outside deformation tendency by huge extruding force,
Static load pile crown protection device is acted on the banding of pile crown, the circumferential deformation of pile crown can be limited, so as to prevent crack in pile crown.It is described
Reinforcement structure is arranged on the joint in banding portion 100 and connecting portion 200, for being pushed up respectively with connecting portion 200 and banding portion 100
Connect, to strengthen the intensity of connecting portion 200, prevent the connecting portion 200 from occurring to bend relatively with banding portion 100, it is quiet so as to cause
Pile crown protection device is carried to loosen, static load pile crown protection device is no longer close to the inwall of pile crown, and pile crown just has the amount of space of deformation,
So reinforcement structure can effectively play a part of fastening.
Preferably, the banding portion 100 can be circular arc, and the banding portion 100 of multiple circular arcs forms circular pinch zones
Domain, for being fitted in cross section as circular pile crown.The shape in banding portion 100 can be not only that circular arc can also be bending
Shape, i.e., multiple banding portions 100 can form the clamping region of cuboid, be rectangular pile crown for banding cross section.Root
Other shapes of banding portion 100 can also be designed according to actual conditions, can by the effect of pile crown outer wall firmly banding as long as meeting
With.
Specifically, as Figure 1-4, the number in the banding portion 100 can be two.It is circular arc with banding portion 100
Exemplified by, two semicircular banding portions 100 are clamped in the both sides of pile crown, and the clamping zone of circle is formed after combination, so as to
Ensure that the circumferential side wall of pile crown is all covered, effectively limit the deformation space of pile crown, prevent pile crown from rupturing.
The number in banding portion 100 can also be other, such as three, four etc..When the number in banding portion 100 is three
When, the central angle in banding portion 100 is 120 °, and when the number in banding portion 100 is four, the central angle in banding portion 100 is 90 °,
The number in banding portion 100 is more, and the arc length in each banding portion 100 is shorter.Because according to the actual demand of construction, pile crown it is straight
Footpath may be relatively large, and if the number in banding portion 100 is only arranged to two, the volume in each banding portion 100 is with regard to phase
To larger, transport and preservation are all inconvenient, so for the banding part of this large-sized pile crown of banding, can be with excellent
The number by banding portion 100 of choosing is arranged to four, and the volume in so each banding portion 100 is relatively small, is advantageous to apply
Transport and preservation before and after work.
Need what is illustrated, enter by two static load pile crown protection devices provided the present embodiment of the number in banding portion 100
Row explanation.
Through hole 400 is provided with connecting portion 200, the static load pile crown protection device includes bolt 510 and nut 520, will
After two banding portions 100 are held on the both sides of pile crown, the through hole 400 of the connecting portion 200 in two banding portions 100 is in straight line
On, match somebody with somebody after bolt 510 to be passed through to the through hole 400 on the connecting portion 200 in the two neighboring banding portion 100 with the nut 520
Close, so as to so that the connecting portion 200 in two banding portions 100 links together, reach the held tight pile crown side wall of banding portion 100
Purpose.
Preferably, the nut of the bolt 510 can be polygon, and on the connecting portion 200 of described one end of banding portion 100
It is correspondingly arranged on the polygon hole slot 410 for accommodating the nut.After bolt 510 is inserted into two through holes 400, bolt
510 nut is put into hole slot 410, and the nut of polygon is stuck in hole slot 410, and screw rod stretches out the part of through hole 400 and nut
520 connections, can not rotate, when turning nut 520, the bolt 510 will not occur relatively because nut is stuck in dead slot
Rotate.
Specifically, the reinforcement structure can be multiple spaced wedge-shaped reinforcing plates 310, wedge-shaped reinforcing plate 310 with
Connecting portion 200 and banding portion 100 are integrally formed, and the wedge-shaped reinforcing plate 310 is respectively perpendicular to the connecting portion 200 and banding
The outer wall in portion 100.When pile crown top is carrying out static test because being made pile crown produce to circumference by huge extruding force
The trend of deformation, banding part is by the outside extruding force of pile crown, so as to which the angle between connecting portion 200 and banding portion 100 will have
The trend of expansion.And the wedge-shaped reinforcing plate 310 is connected with the banding portion 100 with connecting portion 200 respectively, the two is served
Support and the effect of traction.For preventing the connecting portion 200 from occurring to bend relatively with banding portion 100, so as to cause static load stake
Head protection device loosens, and static load pile crown protection device is no longer close to the inwall of pile crown, and pile crown just has the amount of space of deformation, so
Reinforcement structure can effectively play a part of fastening.
The through hole 400 is arranged alternately with wedge-shaped reinforcing plate 310.Wedge-shaped reinforcing plate 310 acts on connecting portion 200 and banding
Portion 100, prevent connecting portion 200 from bending, multiple wedge-shaped reinforcing plates 310 are arranged alternately with through hole 400 and can squeezed with mean allocation
Pressure, prevents the unbalance stress of connecting portion 200, and the position of connecting portion 200 is bent.
Preferably, skid resistant course can be provided with the inwall of banding portion 100, the skid resistant course is used to increase the static load
Frictional force between pile crown protection device and the pile crown.Such as skid resistant course can be coarse skid resistant course, in banding portion 100
Wall is provided with multiple particles projections, when pre-installing static load pile crown protection device, two banding parts first can be docked at into pile crown
Behind both sides, bolt 510 is inserted, because being provided with coarse skid resistant course on the inwall of banding part, so that static load pile crown protection device
It is fixed on pile crown, so as to reach when tightening nut 520, the set location of static load pile crown protection device does not change.
As shown in figure 5, the static load pile crown protection device includes arc spacer 600 corresponding with banding part, the arc
Pad 600 is fixed on the inwall of banding portion 100, so that the static load pile crown protection device can be with the less stake of banding diameter
Head.It is directed to for various sizes of pile crown, if the diameter of pile crown is more than the internal diameter of static load pile crown protection device, and phase
It is poor less, static load pile crown protection device still can be with banding in the outer wall of pile crown, but the correspondence in two banding portions 100 connects
There will be certain gap between socket part 200.But if the diameter of pile crown is less than the internal diameter of static load pile crown protection device,
Banding portion 100 will be unable to be fitted on the inwall of pile crown, will between the outer wall of pile crown and the internal diameter of static load pile crown protection device
Deformation space is formed, static load pile crown protection device will be unable to be continuing with, so in order to prevent static load pile crown protection device internal diameter
The problem of excessive, arc spacer 600 can be set on the inwall in banding portion 100, arc spacer 600 has certain thickness,
So as to so that static load pile crown protection device clamps the less pile crown of diameter.
The number of arc spacer 600 can be multilayer, and the internal diameter of arc spacer 600 gradually reduces from inside to outside.Banding
Portion 100 can pass through spiral shell with that can be correspondingly arranged on screwed hole in arc spacer 600 between banding portion 100 and arc spacer 600
Bolt 510 links together.
Embodiment 2
As shown in figs 6-8, difference from Example 1 is, the reinforcement structure can be wedge 320, the wedge
Shape block 320 is integrally formed with the connecting portion 200 and banding portion 100, and the upper edge of wedge 320 is justified with the outer wall in banding portion 100
Slip over and cross, can so make the intensity of connecting portion 200 higher, more difficult bending.The static load pile crown protection device includes spiral shell
Bolt 510, through hole 400 is provided with the wedge 320, internal thread is provided with the through hole 400, passes through swivel bolt 510
It can reduce the distance between two banding parts, reach the purpose of the held tight pile crown side wall of banding portion 100.
In summary, static load pile crown protection device provided by the utility model, including banding part and reinforcement structure, the hoop
Tight part includes multiple banding portions 100, and each both sides of banding portion 100 are provided with the connecting portion 200 of protrusion, and multiple banding portions 100 are logical
After crossing the connection of connecting portion 200, banding portion 100 closely can be fitted in the side wall of pile crown, and applies ecto-entad to pile crown
Pressure.Pile crown top is when carrying out static test, because it is circumferentially outside to produce pile crown by huge extruding force
Deformation tendency, static load pile crown protection device are acted on the banding of pile crown, the circumferential deformation of pile crown can be limited, so as to prevent pile crown
Explosion.The reinforcement structure is arranged on the joint in banding portion 100 and connecting portion 200, for respectively with connecting portion 200 and banding
The apical grafting of portion 100, to strengthen the intensity of connecting portion 200, prevent the connecting portion 200 from occurring to bend relatively with banding portion 100, so as to
Static load pile crown protection device is caused to loosen, static load pile crown protection device is no longer close to the inwall of pile crown, and pile crown just has deformation
Amount of space, so reinforcement structure can effectively play a part of fastening.
Static loading experiment system provided by the utility model, including above-mentioned static load pile crown protection device.Pile crown top is being entered
During row static test, because being made pile crown produce circumferentially outside deformation tendency by huge extruding force, static load pile crown is protected
Protection unit is acted on the banding of pile crown, the circumferential deformation of pile crown can be limited, so as to prevent crack in pile crown.The reinforcement structure is set
Put the joint in banding portion 100 and connecting portion 200, for respectively with connecting portion 200 and the apical grafting of banding portion 100, to strengthen connecting
The intensity of socket part 200, prevent the connecting portion 200 from occurring to bend relatively with banding portion 100, so as to cause static load pile crown protection dress
Loosening is put, static load pile crown protection device is no longer close to the inwall of pile crown, and pile crown just has the amount of space of deformation, so reinforcement structure
Fastening can effectively be played a part of.
Static loading experiment system includes support frame, and the support member is connected with the outer wall of static load pile crown protection device, so that will
The horizontal both sides for being fixed on pile crown of static load pile crown protection device, by pile crown banding, then the jack above support frame can be with
Active force is applied to pile crown top, test for static load is carried out to stake.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of static load pile crown protection device, it is characterised in that including banding part and reinforcement structure；The banding part includes multiple
Banding portion, each banding portion both sides are provided with the connecting portion of protrusion, and the connecting portion head and the tail in the multiple banding portion are sequentially connected, used
In being enclosed on pile crown lateral wall, and banding；
The reinforcement structure is arranged on banding portion and the joint of connecting portion, for respectively with connecting portion and banding portion apical grafting, with
Strengthen the intensity of connecting portion.
2. static load pile crown protection device according to claim 1, it is characterised in that the number in the banding portion is two.
3. static load pile crown protection device according to claim 1, it is characterised in that be provided with through hole on the connecting portion；
The static load pile crown protection device includes bolts and nuts, the bolt through after the through hole on the two neighboring connecting portion with
The nut coordinates, for connecting the two neighboring banding portion.
4. static load pile crown protection device according to claim 3, it is characterised in that the nut of the bolt is polygon,
And the hole slot for accommodating the nut is correspondingly arranged on the connecting portion of banding portion one end, for preventing rotating nuts
When, the bolt relatively rotates.
5. static load pile crown protection device according to claim 4, it is characterised in that the reinforcement structure sets for multiple intervals
The wedge-shaped reinforcing plate put, and the wedge-shaped reinforcing plate is respectively perpendicular to the outer wall of the connecting portion and banding portion.
6. static load pile crown protection device according to claim 5, it is characterised in that the through hole replaces with wedge-shaped reinforcing plate
Set.
7. static load pile crown protection device according to claim 1, it is characterised in that the reinforcement structure is wedge, institute
State wedge to be integrally formed with the connecting portion and banding portion, the static load pile crown protection device includes bolt, the wedge
On be provided with through hole, the through hole is provided with internal thread corresponding with the bolt.
8. static load pile crown protection device according to claim 1, it is characterised in that be provided with banding portion inwall anti-
Slip layer, the skid resistant course are used to increase the frictional force between the static load pile crown protection device and the pile crown.
9. static load pile crown protection device according to claim 1, it is characterised in that the static load pile crown protection device includes
Arc spacer corresponding with banding portion, the arc spacer are fixed on banding portion inwall.
10. a kind of static loading experiment system, it is characterised in that including the static load pile crown protection described in claim 1-9 any one
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510080.4U CN206800481U (en) | 2017-05-09 | 2017-05-09 | Static load pile crown protection device and static loading experiment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510080.4U CN206800481U (en) | 2017-05-09 | 2017-05-09 | Static load pile crown protection device and static loading experiment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206800481U true CN206800481U (en) | 2017-12-26 |
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ID=60739678
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720510080.4U Active CN206800481U (en) | 2017-05-09 | 2017-05-09 | Static load pile crown protection device and static loading experiment system |
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| Country | Link |
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| CN (1) | CN206800481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138009A (en) * | 2018-09-30 | 2019-01-04 | 上海宝冶集团有限公司 | A kind of CFG of detecting of bearing capacity of a pile method |
| CN117030487A (en) * | 2023-10-09 | 2023-11-10 | 武汉中岩科技股份有限公司 | Safety pre-warning method and device for ballast counter-force platform suitable for static load test |
-
2017
- 2017-05-09 CN CN201720510080.4U patent/CN206800481U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138009A (en) * | 2018-09-30 | 2019-01-04 | 上海宝冶集团有限公司 | A kind of CFG of detecting of bearing capacity of a pile method |
| CN117030487A (en) * | 2023-10-09 | 2023-11-10 | 武汉中岩科技股份有限公司 | Safety pre-warning method and device for ballast counter-force platform suitable for static load test |
| CN117030487B (en) * | 2023-10-09 | 2023-12-29 | 武汉中岩科技股份有限公司 | Safety pre-warning method and device for ballast counter-force platform suitable for static load test |
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