CN207685875U - Increase steady type load box - Google Patents
Increase steady type load box Download PDFInfo
- Publication number
- CN207685875U CN207685875U CN201721587160.6U CN201721587160U CN207685875U CN 207685875 U CN207685875 U CN 207685875U CN 201721587160 U CN201721587160 U CN 201721587160U CN 207685875 U CN207685875 U CN 207685875U
- Authority
- CN
- China
- Prior art keywords
- load box
- hydraulic cylinder
- pile
- upper junction
- type load
- Prior art date
- 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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- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000009792 diffusion process Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 12
- 239000004567 concrete Substances 0.000 description 24
- 238000010586 diagram Methods 0.000 description 8
- 239000013049 sediment Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model provides a kind of steady type load box of increasing, including upper junction plate and lower connecting plate, and hydraulic cylinder is fixedly mounted by screw between upper junction plate and lower connecting plate, further include the displacement bar and detection pipe of welding installation, wherein welding installation multilayer increases steady ring on hydraulic cylinder.Increase steady type load box according to described in the utility model, be used for foundation pile self-balanced static-load testing, to solve the technical issues of traditional load box is also easy to produce self-balanced static-load testing failure.
Description
Technical field
The utility model is related to the foundation pile self-balancing approach dead-load detection technical field of test equipment of building foundation, more particularly to
A kind of bored concrete pile load box.
Background technology
With the popularization and application of foundation pile autobalanced detection technology in construction project, the load box suitable for cast-in-situ bored pile makes
Include the pile bearing capacity detection of the engineerings such as bridge, skyscraper, port and pier with also more and more.Mainly implementation is
It will be placed in stake holes after a kind of special hydraulic test load box and steel reinforcement cage welding, concrete pile then poured into a mould, by pre-
The hydraulic tube stayed carries out load test, measures pile bearing capacity.
The hydraulic cylinder structure form of composition cast-in-situ bored pile load box is generally pylindrical and annular at present, as shown in Figure 1.
As shown in Fig. 2, hydraulic cylinder cannot form effective connection with pile body after load box is poured into a mould together with concrete, only rely on load box
The pile body of lower face carries out the transmission of power, when load box end face causes pile body to pour into a mould leakiness because of factors such as sediments, load
The connecting plate of case can not supporting cylinder carry out effectively hold lotus load, often result in respective hydraulic cylinder displacement it is asynchronous, tendency and
Phenomena such as dislocation damages, or even oil distributing pipe is caused to be broken, and hydraulic pressure is revealed causes experiment that can not complete.It is big for paxilla diameter simultaneously
The foundation pile of load, in fact it could happen that load box section is less than the section of test requirements document, i.e., the pressure that load box load generates is higher than base
Intensity of stake itself causes pile concrete destruction that can not complete finally to load, also can not just measure ideal bearingtest knot
Fruit.
In view of this, needing to be improved the prior art, to meet the requirement of current bored concrete pile load box.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies of the prior art and provide a kind of steady type load of increasing
Case is used for foundation pile self-balanced static-load testing, to solve the technical issues of traditional load box is also easy to produce self-balanced static-load testing failure.
To achieve the above object, utility model provides the following technical solutions：
It is a kind of to increase steady type load box, including it includes upper junction plate and lower connecting plate to increase steady type load box, and in upper connection
The hydraulic cylinder being fixedly mounted by screw between plate and lower connecting plate.
Further, further include the displacement bar and detection pipe of welding installation.
Further, upper junction plate and lower connecting plate are Circular Plate, and multiple circular holes are symmetrically opened up in Circular Plate.
Further, welding installation multilayer increases steady ring on hydraulic cylinder.
Description of the drawings
Fig. 1 is the structural schematic diagram of load box in the prior art；
Fig. 2 is the structural schematic diagram that the utility model embodiment increases steady type load box；
Fig. 3 is the engineer application schematic diagram of load box in the prior art；
Fig. 4 is the engineer application schematic diagram that the utility model embodiment increases steady type load box；
Fig. 5 is the hydraulic cylinder schematic diagram of load box in the prior art in Fig. 1；
Fig. 6 is the hydraulic cylinder structure schematic diagram for increasing steady type load box in Fig. 2；
Fig. 7 is the structural schematic diagram for increasing steady ring in Fig. 6；
Fig. 8 is the steady ring structure schematic diagram of increasing that the utility model embodiment another kind carries umbrella diffusion structure.
Reference sign：
1- Pile side soil layers；2- epimere pile cages；3- epimere pile concretes；4- sediments；5- increases steady type load box；On 51-
Connecting plate；52- hydraulic cylinders；53- hydraulic cylinder pistons；54- lower connecting plates；55- displacement bars；56- screws；57- detection pipes；58- liquid
Pressure pipe；59- increases steady ring；6- hypomere pile cages；7- hypomere pile concretes.
(pay attention to：Shown structure in attached drawing simply to illustrate that utility model feature signal, be not intended to according to attached drawing
Shown structure.)
Specific implementation mode
As shown in Fig. 2, increasing steady type load box 5, including upper junction plate 51 and lower connecting plate according to described in the utility model
54, and the hydraulic cylinder 52 that is fixedly mounted by screw 56 between upper junction plate 51 and lower connecting plate 54, further include welding peace
The displacement bar 55 and detection pipe 57 of dress.
Wherein, upper junction plate 51 is arranged in parallel with lower connecting plate 54, and displacement bar 55 and detection pipe 57 are perpendicular to upper junction plate
51 with lower connecting plate 54.
Wherein, upper junction plate 51 and lower connecting plate 54 are Circular Plate, and multiple circular holes are symmetrically opened up in Circular Plate.
Welding installation multilayer increases steady ring 59 wherein on hydraulic cylinder 52, and hydraulic cylinder 52 connects the hydraulic tube 58 of pressure input.
As shown in figure 8, umbrella diffusion structure can be carried by increasing steady ring 59.
Specific implementation is as shown in figure 4, first weld epimere pile cages 2 and upper junction plate 51, by hypomere pile cages 6
It is welded with lower connecting plate 54, while displacement bar 55, detection pipe 57 and hydraulic tube 58 is extended into installation to ground along epimere pile cages 2
Face is positioned over together in experiment base pile hole, then pours into a mould concrete pile, pours into a mould the shadow because of load box section in Concrete
It rings and easily there is local caburizing's leakiness phenomenon in load box end face, is i.e. sediment 4 remains in load box surface.
When carrying out static test after test pile coagulates the phase, increases steady type load box 5 and is loaded by 58 input pressure of hydraulic tube,
Forming the hydraulic cylinder piston 53 in each hydraulic cylinder 52 of load box, from bottom, stretching pushes lower connecting plate 54 to run down respectively, makes
Foundation pile disconnects from lower connecting plate 54 is divided into upper and lower two sections of stakes, epimere pile cages 2 when persistently loading, upper junction plate 51 and on
The thrust of each hydraulic cylinder 52 is passed up to epimere pile body by the epimere pile concrete 3 on 51 top of connecting plate；Lower connecting plate 54, under
Downward thrust is transferred to hypomere stake by section pile cages 6 and hypomere pile concrete 7；With the increase of input pressure, wherein one
Upper junction plate 51 is only leaned in 52 top of hydraulic cylinder because the presence of sediment 4 makes the pile body part that upper junction plate 51 contacts hollow
Intensity will be unable to meet the load of the output of hydraulic cylinder 52, and the steady ring of the increasing being arranged on hydraulic cylinder 52 at this time 59 can be by anchoring with it
Its thrust is transferred to pile body by the epimere pile concrete 3 of connection, to the load of stabilizing solution cylinder pressure 52, is avoided at local sediment 4
Upper junction plate 51 be deformed, ensure hydraulic cylinder 52 do not generate tendency and dislocation, improve the stability of experiment.
Work as simultaneously by inspection foundation pile because of the limitation of conditions so that when load box section is less than the load section of test requirements document, upper company
Fishplate bar 51 contact concrete strength of pile will be less than load generation pressure because increase steady ring 59 increase load box 5 with it is upper
The area of horizontal contact of section pile concrete 3, you can made with being transmitted with upper junction plate 51,2 shared load of epimere pile cages
With, reduce the pressure between load box epimere pile concrete 3 and upper junction plate 51, ensures that pile body is not destroyed, raising experiment
Stability and reliability.
Increase steady type load box according to described in the utility model, compared with traditional bored concrete pile load box, there is following spy
Point：
(1) when engineer application, the steady type load box of increasing for increasing steady type hydraulic cylinder composition is cast in pile concrete, is increased
Steady ring forms one after being connect with the pile concrete at load box position, is testing the thrust for increasing steady type hydraulic cylinder when load and generating
It can not only be transmitted, can also be increased by hydraulic cylinder side steady by the pile concrete and steel reinforcement cage contacted with load box connecting plate
Thrust is transferred to pile body by ring, disperses the concentration of load, pressure when mitigating load suffered by concrete, improves load box load
Stability, especially when the pile concrete leakiness of load box upper surface, increasing the anchoring of steady ring and pile concrete can consolidate
Determine hydraulic cylinder not misplacing tendency, to maintain the load of experiment, improves the reliability of experiment；
(2) it is provided with the steady ring of increasing that umbrella extends other structures of the rod structure either other than umbrella diffusion structure,
When the steady type load box of the increasing is cast in pile concrete, increases steady ring and form diffusion type anchor with load box position pile concrete
Gu further increasing the load stability and reliability of load box.
The above, the only preferred embodiment of utility model, are not intended to limit the protection domain of utility model,
It is all within the spirit and principle of utility model made by all any modification, equivalent and improvement etc., should be included in practical new
Within the protection domain of type.
Claims (4)
1. a kind of increasing steady type load box (5), it is characterised in that：
It includes upper junction plate (51) and lower connecting plate (54) to increase steady type load box (5), and in upper junction plate (51) and lower connection
The hydraulic cylinder (52) being fixedly mounted by screw (56) between plate (54)；
Further include the displacement bar (55) and detection pipe (57) of welding installation；
Wherein, upper junction plate (51) and lower connecting plate (54) are Circular Plate, and multiple circular holes are symmetrically opened up in Circular Plate；
Welding installation multilayer increases steady ring (59) on hydraulic cylinder (52).
2. according to claim 1 increase steady type load box, it is characterised in that：
Upper junction plate (51) is arranged in parallel with lower connecting plate (54), and displacement bar (55) and detection pipe (57) are perpendicular to upper junction plate
(51) with lower connecting plate (54).
3. according to claim 2 increase steady type load box, it is characterised in that：
Hydraulic cylinder (52) connects the hydraulic tube (58) of pressure input.
4. according to claim 3 increase steady type load box, it is characterised in that：
It is umbrella diffusion structure to increase steady ring (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587160.6U CN207685875U (en) | 2017-11-24 | 2017-11-24 | Increase steady type load box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721587160.6U CN207685875U (en) | 2017-11-24 | 2017-11-24 | Increase steady type load box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207685875U true CN207685875U (en) | 2018-08-03 |
Family
ID=62998707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721587160.6U Expired - Fee Related CN207685875U (en) | 2017-11-24 | 2017-11-24 | Increase steady type load box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207685875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236327A (en) * | 2020-01-17 | 2020-06-05 | 武汉建诚工程技术有限公司 | Load box for self-balancing detection, pile foundation bearing capacity detection device and method |
| WO2020168800A1 (en) * | 2019-02-21 | 2020-08-27 | 南昌永祺科技发展有限公司 | Detection apparatus and detection method for load box post-grouting compressive strength evaluation |
-
2017
- 2017-11-24 CN CN201721587160.6U patent/CN207685875U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020168800A1 (en) * | 2019-02-21 | 2020-08-27 | 南昌永祺科技发展有限公司 | Detection apparatus and detection method for load box post-grouting compressive strength evaluation |
| CN111236327A (en) * | 2020-01-17 | 2020-06-05 | 武汉建诚工程技术有限公司 | Load box for self-balancing detection, pile foundation bearing capacity detection device and method |
| CN111236327B (en) * | 2020-01-17 | 2021-10-15 | 武汉建诚工程技术有限公司 | Load box for self-balancing detection, pile foundation bearing capacity detection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |