CN206220137U - A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property - Google Patents
A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property Download PDFInfo
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- CN206220137U CN206220137U CN201621221618.1U CN201621221618U CN206220137U CN 206220137 U CN206220137 U CN 206220137U CN 201621221618 U CN201621221618 U CN 201621221618U CN 206220137 U CN206220137 U CN 206220137U
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- pipe pile
- weighted platform
- steel pipe
- banket
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Abstract
The utility model is related to a kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property, including hard mould bucket, weighted platform and stake steel pipe；Weighted platform is installed on a steel pipe top, and stake steel pipe insertion hard mould bucket is internal；Weighted platform bottom surface is provided with dial gauge, and stake steel tube surface several foil gauges of arranged for interval from top to bottom, all foil gauges access strain testing instrument by wire.The utility model can simulate the sedimentation phenomenon of steel-pipe pile under various working, different size, different parameters, different loads, different soil moisture contents, different stratum medias etc. can be set according to different situations, fast and easy conversion between each operating mode, measurable many kinds of parameters index, test result is true and reliable.
Description
Technical field
The utility model is related to a kind of experimental facilities of steel-pipe pile settling character of banketing, and in particular to one kind measurement is simultaneously analyzed
The steel-pipe pile that bankets sedimentation and the experimental provision of emergent property.
Background technology
From 20 middle of century, steel-pipe pile has been widely used abroad, and the country builds except minority（Structure）Building beyond the region of objective existence seldom makes
With.Due to the large carrying capacity of steel-pipe pile, steel specs and pattern are more, stake easy adjustment long, and material wastes few, not perishable,
Many advantages, such as speed of application is fast, the in the last few years application of steel-pipe pile is subject to the extensive concern of researcher.Some scholars are
Successively have studied the reinforcement mechanism of the miniature steel pipe pile being applied in slope treatment；Describe steel pipe pile load transmission letter in frozen soil
Several test process and computational methods；Analyze bearing capacity characteristics of large diameter steel pipe pile etc., the above under vertical uniform load q
Discussion is enough to illustrate that the application of steel-pipe pile is more extensive.
At present, engineering circles have had certain research for earth tunnel reinforcing soft foundation.Rotary churning pile, mixing pile, CFG
Enough spaces, the more difficult control of construction quality of the sand compaction pile in weak soil are needed in site operation.For tunnel and underground work
Cheng Eryan, because of cavern's limited space, large-scale construction equipment cannot march into the arena operation, therefore tunnel reinforcing soft foundation still suffer from it is more
Performance difficulty with challenge.Steel-pipe pile has bearing capacity big, and bending resistance and shear resistance are strong, and quick construction facility, soil compaction effect is bright
Aobvious many advantages, such as, on the premise of ground requirement for bearing capacity is met, will be obtained very well using the soft base in steel pipe pile reinforced tunnel
Engineering effort.In bearing load, not only pile foundation is susceptible to sedimentation to soft foundation steel-pipe pile, and pile body can also occur shape
Become.As load gradually increases, the settling amount at the top of steel-pipe pile can constantly increase, and with the increase of steel-pipe pile settling amount, stake
Body strain value also can gradually increase, and the increase trend of settling amount has directly pass with the moisture content of texture stratum residing for pile foundation
Connection property.Based on the popularity that steel-pipe pile is used in underground engineering, it is necessary to which the sedimentation to it in the case of different water cut is special
Property carry out experimental study, be easy to for field conduct provide design and theoretical foundation.
The content of the invention
The purpose of this utility model is to provide a kind of measurement and analyzes banket steel-pipe pile sedimentation and the experiment of emergent property dress
Put, settling character that is measurable and analyzing the texture stratum steel-pipe pile in the case of different water cut, real-time monitoring pile strain value
With pile body settlement amount.
The technical scheme that the utility model is used for：
A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property, it is characterised in that：
Including hard mould bucket, weighted platform and stake steel pipe；
Weighted platform is installed on a steel pipe top, and stake steel pipe insertion hard mould bucket is internal；
Weighted platform bottom surface is provided with dial gauge, stake steel tube surface several foil gauges of arranged for interval from top to bottom, owns
Foil gauge accesses strain testing instrument.
Weighted platform includes bearing plate and minor-diameter steel-tube, and minor-diameter steel-tube is welded with the bottom surface of bearing plate, minor diameter steel
Pipe is inserted into the top of a steel pipe；Dial gauge is symmetrically arranged on the bottom surface of bearing plate.
Place preloading counterweight in the upper surface of weighted platform.
Weighted platform fixes support by the magnetic bracket of side.
The utility model has advantages below：
The utility model can be measured under different water cut texture stratum and different load situations, settlement amount of pile foundation and stake
Situations such as body is strained：
（1）Can Assembling, simple and reliable, operation facility.This model is formed by Assembling, is operated and is moved very
It is convenient.
（2）Good endurance, material is simple, investment reduction.The present apparatus can be recycled once completing, time saving and energy saving, utilize
Rate is high；The maintenance cost of the present apparatus is relatively low simultaneously.
（3）Safeguard and change convenient.If device can be changed in time once failing, recover normally to use effect at once；Practicality
It is good, easy to operate, cheap, it is easy to popularization and application.
（4）Steel-pipe pile sedimentation phenomenon under various working can be simulated, different sizes, different can be set according to different situations
Parameter, different loads, different soil layer moisture content, different stratum medias etc., between each operating mode can fast and easy conversion, can
Measurement many kinds of parameters index, test result is true and reliable.
Brief description of the drawings
Fig. 1 --- apparatus of the present invention primary structure front view；
Fig. 2 --- apparatus of the present invention primary structure plan；
The profile of Fig. 3 --- apparatus of the present invention primary structure I-I；
In figure：1. hard mould bucket, 2. a steel pipe, 3. bearing plate, 4. minor-diameter steel-tube, 5. weighted platform, 6. foil gauge.
Specific embodiment
The utility model is described in detail with reference to specific embodiment.
For the stress and deformation characteristic of more preferable analog study steel-pipe pile, using slow lasting loading, by applying step by step
Plus the mode of counterweight or related weight, real-time monitoring pile strain value and pile body settlement amount.Pile strain is by monitoring foil gauge
Obtain, several foil gauges are evenly arranged at a certain distance along stake length direction, strain acquisition system is strain testing instrument；Pile body sinks
Drop amount is measured by dial gauge, and every group of experiment is arranged symmetrically 2 dial gauges, is independently fixed on testing stand with magnetic bracket, make even
Average is pile body settlement amount.The device ensures the certainty of measurement to pile strain and pile foundation settlement, while can be easily
Banketed in the case of research different water cut the settling character of steel-pipe pile, contained with banketing so as to more preferable analysis steel pipe pile side friction
Suggestion relational expression between water rate.The device can also well simulate steel-pipe pile sedimentation phenomenon, simple and reliable, it is easy to implement,
Reduce investment outlay, with more important application study value and economic and social benefits, the steel in the case of different soil moisture content is simulated
Had a good application prospect in the stress and sedimentation and deformation characteristic of pile tube.
Concrete structure includes：
Hard mould bucket 1, weighted platform 5 and stake steel pipe 2；Weighted platform 5 is installed on the top of a steel pipe 2, and stake steel pipe 2 is inserted
The inside of hard mould bucket 1；The bottom surface of weighted platform 5 is provided with dial gauge, the surface of stake steel pipe 2 from top to bottom arranged for interval several should
Become piece 6, all foil gauges 6 access strain testing instrument by wire.
Weighted platform 5 includes bearing plate 3 and minor-diameter steel-tube 4, and minor-diameter steel-tube 4 is welded to the bottom surface of bearing plate 3, small straight
Footpath steel pipe 4 is inserted into the top of a steel pipe 2；Dial gauge is symmetrically arranged on the bottom surface of bearing plate 3.The top surface of weighted platform 5 is placed
Preloading counterweight, weighted platform 5 fixes support by the magnetic bracket of side.
The function of the device critical piece is：The foil gauge 6 in the surface layout of stake steel pipe 2, can be with by strain testing instrument
Real-time monitored pipe deformation situation；Bearing plate 3 is independently fixed by magnetic bracket, so as to be prevented effectively from loading to stake steel pipe
2 cause external disturbance；The soil body for simulating pile foundation periphery by hard mould bucket 1 is constrained and boundary condition, and the size of hard mould bucket 1 is led to
Cross early stage and calculate and determine, it is ensured that added influence is not caused to experiment, the soil in the case of different water cut so can be not only met
Layer experiment, and can be very good to save space needed for experiment, send out because of loading hard mould bucket 1 while also ensure that
Change shape；Preloading counterweight is main loading device, for every grade of loading level, can be needed to be adjusted flexibly according to actual tests
Set.
When using：
Step one：Early-stage preparations.According to actual conditions, by correlation computations, cast material, moulded dimension, soil layer are determined
Moisture content, size of every grade of power that needs to be further applied load etc..
Step 2：Make loading device：Minor-diameter steel-tube 4 is welded with bearing plate 3, overall composition weighted platform 5 passes through
Preloading counterweight realizes multistage loadings.
Step 3：Make measurement apparatus.Dial gauge is arranged symmetrically in the lower surface of bearing plate 3, by foil gauge 6 by certain
Spacing is arranged on a steel pipe 2, and is reliably connected strain testing instrument by wire.
Step 4：Stake steel pipe 2 is placed in hard mould bucket 1 on request, the soil medium of specific moisture content is added, by certain
Degree is compacted densification, notes ensuring being reliably connected for foil gauge 6 and strain testing instrument when banketing.
Step 5：Loading steadily step by step.Within a certain period of time, slow multistage loadings, observe pile foundation settlement and pile body deformation
Situations such as.
Step 6：During loading, by reading the data of dial gauge and strain testing instrument, statistical analysis is carried out, drawn
Corresponding conclusion (of pressure testing) under different operating modes.
After using the present apparatus, with the difference of the various operating modes of soft foundation steel-pipe pile simulated, its relevant parameter is such as：Firmly
Soil mass property, bearing plate, minor-diameter steel-tube, counterweight loading in soil moisture content, bucket in matter mould bucket size, stake steel pipe sizes, bucket
Active force etc. can be suited measures to local conditions according to actual needs, either large or small, more or less long or short or strong or weak.
Content of the present utility model is not limited to cited by embodiment, and those of ordinary skill in the art are new by reading this practicality
Type specification and any equivalent conversion taken technical solutions of the utility model, are claim institute of the present utility model
Cover.
Claims (4)
1. it is a kind of measure and analyze banket steel-pipe pile sedimentation and emergent property experimental provision, it is characterised in that：
Including hard mould bucket（1）, weighted platform（5）With stake steel pipe（2）；
Weighted platform（5）It is installed on a steel pipe（2）Top, stake steel pipe（2）Insertion hard mould bucket（1）It is internal；
Weighted platform（5）Bottom surface is provided with dial gauge, stake steel pipe（2）Surface several foil gauges of arranged for interval from top to bottom（6）,
All foil gauges（6）Access strain testing instrument.
2. it is according to claim 1 it is a kind of measure and analyze banket steel-pipe pile sedimentation and emergent property experimental provision, its
It is characterised by：
Weighted platform（5）Including bearing plate（3）And minor-diameter steel-tube（4）, minor-diameter steel-tube（4）With bearing plate（3）Bottom surface weldering
Connect, minor-diameter steel-tube（4）It is inserted into a steel pipe（2）Top；Dial gauge is symmetrically arranged on bearing plate（3）Bottom surface.
3. it is according to claim 1 it is a kind of measure and analyze banket steel-pipe pile sedimentation and emergent property experimental provision, its
It is characterised by：
Weighted platform（5）Upper surface place preloading counterweight.
4. it is according to claim 1 it is a kind of measure and analyze banket steel-pipe pile sedimentation and emergent property experimental provision, its
It is characterised by：
Weighted platform（5）Support is fixed by the magnetic bracket of side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621221618.1U CN206220137U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621221618.1U CN206220137U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206220137U true CN206220137U (en) | 2017-06-06 |
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ID=58792366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621221618.1U Active CN206220137U (en) | 2016-11-14 | 2016-11-14 | A kind of experimental provision for measuring and analyzing banket steel-pipe pile sedimentation and emergent property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206220137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277858A (en) * | 2021-11-30 | 2022-04-05 | 中国能源建设集团安徽电力建设第一工程有限公司 | Indoor simulation test device for measuring settlement and strain of boulder stratum pipe pile |
| CN115233747A (en) * | 2022-07-13 | 2022-10-25 | 青岛理工大学 | Device and method for testing stress of micro steel pipe pile in miscellaneous filled stratum |
-
2016
- 2016-11-14 CN CN201621221618.1U patent/CN206220137U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114277858A (en) * | 2021-11-30 | 2022-04-05 | 中国能源建设集团安徽电力建设第一工程有限公司 | Indoor simulation test device for measuring settlement and strain of boulder stratum pipe pile |
| CN115233747A (en) * | 2022-07-13 | 2022-10-25 | 青岛理工大学 | Device and method for testing stress of micro steel pipe pile in miscellaneous filled stratum |
| CN115233747B (en) * | 2022-07-13 | 2024-02-27 | 青岛理工大学 | Device and method for testing stress of miniature steel pipe pile in miscellaneous fill stratum |
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