CN205907728U - Embedded rock pile model test device - Google Patents
Embedded rock pile model test device Download PDFInfo
- Publication number
- CN205907728U CN205907728U CN201620896808.7U CN201620896808U CN205907728U CN 205907728 U CN205907728 U CN 205907728U CN 201620896808 U CN201620896808 U CN 201620896808U CN 205907728 U CN205907728 U CN 205907728U
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- Prior art keywords
- embedded rock
- pile
- rock pile
- embedded
- model test
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- 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 an embedded rock pile model test device, including bottom plate, dynamometry display system, displacement testing device, loading system, concrete pier platform, rock block, embedded rock pile, spring, adjusting screw, wherein, loading system includes reaction frame, adjusting screw and jack, and dynamometry display system includes pressure sensor and dynamometry display instrument, and the displacement testing device includes displacement testing 1 and magnetism gauge stand, keep the in one plane at the bottom of the embedded rock pile stake bottom rock block, the concrete pier platform is used for adjusting experiment space to provide the space for subsiding of embedded rock pile, the spring is used for cushioning subsiding of embedded rock pile. Utilize the utility model discloses, the embedded rock pile only provides the bearing capacity by inlaying rock section stake side friction resistance under vertical load -bearing, reach distribution law, the pile bolck load and pile bolck displacement relation and pile body axle power transfer rule of embedded rock pile along pile body side friction resistance.
Description
Technical field
The utility model is related to rock-soil mechanics test and pile foundation technical field, more specifically, is related to one kind and is used for surveying
The model test apparatus of examination rock-socketed piles side friction.
Background technology
At present, in embedded rock pile model test, mostly embedded rock pile working property is simulated using indoor scale model, its master
Gypsum to be adopted, cement, sand, water etc. simulate rock mass according to a certain ratio, and this exists with embedded rock pile real work proterties certain
Difference, this will affect to result of study.Therefore, carry out the test of protolith embedded rock pile indoors will reach to greatest extent
Embedded rock pile real work proterties.
Embedded rock pile under vertical uniform load q, rubbed by upper overburden layer Lateral frictional resistance, in-rock segment stake side by its bearing capacity
Resistance and end resistance three part composition.In recent years, the research to the pile side friction in socketed piles becomes always
In art one big hot issue.Because indoor model test has the test period is short, funds in need are few and test difficulty is less etc.
Feature, has irreplaceable effect in terms of research rock-socketed piles side friction.Therefore, develop one kind to rub for test pile side
The embedded rock pile model equipment of resistance is particularly important.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of embedded rock pile model test apparatus, and embedded rock pile is perpendicular
To under load-bearing, only to provide bearing capacity by in-rock segment pile side friction, to draw embedded rock pile along the distribution rule of the side friction of pile body
Rule, pile top load and displacement at pile top relation and pile shaft force transfer law.
The utility model provides a kind of embedded rock pile model test apparatus, comprising: base plate, dynamometry display system, displacement measurement
Device, the loading system being located on described base plate and concrete pier base, the sillar being arranged on described concrete pier base, it is arranged on
Embedded rock pile on described sillar center, it is arranged on spring below described rock, wherein,
Described loading system includes reaction frame, the jack being arranged on described reaction frame and is used for adjusting described jack
Adjusting screw rod, described dynamometry display system includes pressure sensor and dynamometry display instrument, and described displacement tester includes counting
Aobvious amesdial and Magnetic gauge stand；Wherein,
Described embedded rock pile is provided with billet, described pressure sensor is arranged on described billet and described jack
Between, described Magnetic gauge stand is symmetrically fixed on described reaction frame and described billet, and described digital display dial gauge is symmetricly set on
On described billet；Wherein,
The stake bottom of described embedded rock pile is with the bottom of described sillar in one plane；Concrete pier base is used for adjusting experiment sky
Between, and provide space for the sedimentation of embedded rock pile；Described spring is used for buffering the sedimentation of described embedded rock pile.
Furthermore it is preferred that structure be also to include sealant, described sealant is arranged on described embedded rock pile and described rock
In gap between block.
Furthermore it is preferred that structure be that the boring of insertion, and the bore diameter of described sillar are provided with described sillar
Diameter more than described embedded rock pile.
Furthermore it is preferred that structure be that described reaction frame includes counter-force frame body and reaction frame bottom diagonal brace；Wherein, described
Counter-force frame body includes crossbeam and the column perpendicular with described crossbeam, and described crossbeam and described column adjust spiral shell by reaction frame
Mother interfixes.
Furthermore it is preferred that structure be, described jack be separated type hydraulic jack.
Knowable to technical scheme above, the embedded rock pile model test apparatus that the utility model provides, by this embedded rock pile
Model test apparatus, can be it can be deduced that embedded rock pile be along the regularity of distribution of the side friction of pile body, stake top after vertical loading
Load and displacement at pile top relation and pile shaft force transfer law.
Brief description
By reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and with to of the present utility model more
Comprehensive understanding, other purpose of the present utility model and result will be more apparent and should be readily appreciated that.In the accompanying drawings:
Fig. 1 is the embedded rock pile model test apparatus three dimensional structure diagram according to the utility model embodiment；
Fig. 2 is the front view of the embedded rock pile model test apparatus according to the utility model embodiment.
Reference therein includes: 1 is reaction frame, and 1-1 is reaction frame adjusting nut；1-2 is reaction frame bottom diagonal brace；
2 is jack；3 is pressure sensor, and 3-1 is dynamometry display instrument；4 is Magnetic gauge stand；5 is digital display dial gauge；6 is calking material
Material；7 is embedded rock pile；8 is billet；9 is sillar；10 is concrete pier base；11 is spring；12 is base plate；13 is adjusting screw rod.
Identical label indicates similar or corresponding feature or function in all of the figs.
Specific embodiment
In the following description, for purposes of illustration, in order to provide the comprehensive understanding to one or more embodiments, explain
Many details are stated.It may be evident, however, that these embodiments can also be realized in the case of not having these details.
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
In order to the structure of the embedded rock pile model test apparatus of the utility model offer is described, Fig. 1 and Fig. 2 is respectively from different angles
Degree has carried out exemplary sign to the structure of embedded rock pile model test apparatus of the present utility model.Specifically, Fig. 1 shows basis
The embedded rock pile model test apparatus three-dimensional structure of the utility model embodiment；Fig. 2 shows according to the utility model embodiment
Embedded rock pile model test apparatus face structure.
As depicted in figs. 1 and 2, the embedded rock pile model test apparatus that the utility model provides include base plate 12, dynamometry shows
System, displacement tester, the loading system being located on described base plate 12 and concrete pier base 10, it is arranged on described concrete pier
Sillar 9 on platform 10, the embedded rock pile 7 being arranged on described sillar 9 center, it is arranged on the spring 11 of described rock 9 lower section.
Specifically, loading system includes reaction frame 1, adjusting screw rod 13 and the jack 2 being arranged on reaction frame 1, very heavy
Top 2 is separated type hydraulic jack.Described dynamometry display system includes pressure sensor 3 and dynamometry display instrument 3-1, described displacement
Test device includes digital display dial gauge 5 and Magnetic gauge stand 4.
Wherein it is desired to illustrate, the most basic principle that the general principle of separated type hydraulic jack is based on is exactly
Pascal's principle, that is, liquid pressure everywhere is consistent, so in the system of balance, smaller piston upper
Apply pressure smaller, and on big piston apply pressure also ratio is larger, so can keep the static of liquid.
Billet 8 is provided with described embedded rock pile 7, described pressure sensor 3 is arranged on described billet 8 and described thousand
Between jin top 2, described Magnetic gauge stand 4 is symmetrically fixed on described reaction frame 1 and described billet 8, and described digital display dial gauge 5 is right
Claim to be arranged on described billet 8 that is to say, that described digital display dial gauge 5 should be arranged symmetrically in billet 8 both sides, process number
According to when take the mean value of the two as sedimentation value, reduce the impact of differential settlement.
The bottom of the stake bottom of described embedded rock pile 7 and described sillar 9 is in one plane；Described concrete pier base 10 is used for adjusting
Section lab space, and provide space for the sedimentation of described embedded rock pile 7；Described spring 11 is used for buffering the sedimentation of described embedded rock pile 7,
Prevent from falling to hurting sb.'s feelings suddenly.Described sealant 6 is arranged in the gap between described embedded rock pile 7 and described sillar 9, calking material
Material 6 can be mortar, epoxy resin, nail-free glue or other cementing agent of high grade etc..
The boring of insertion, in embodiment of the present utility model, is provided with described sillar, the boring of described sillar is straight
Footpath is more than the diameter of described embedded rock pile that is to say, that the boring in sillar 9 will drill through it is ensured that the bearing capacity of embedded rock pile only leans on stake
Side friction is undertaking.
In embodiment of the present utility model, reaction frame 1 includes counter-force frame body and is used for the anti-of reaction of bearing frame body
Power frame bottom diagonal brace 1-2；Wherein, described counter-force frame body includes crossbeam and the column perpendicular with described crossbeam, described crossbeam
Interfixed by reaction frame adjusting nut 1-1 with described column.In the utility model, adjusting screw rod 13 is used for correcting very heavy
Top 2.
In embodiment of the present utility model, in order that embedded rock pile is under vertical load-bearing, only lean on in-rock segment pile side friction
To there is provided bearing capacity, the utility model provides a kind of embedded rock pile model test apparatus not having end resistance, using situ extraction
Sillar, the axle power in each section of pile body can be drawn by model test, so obtained after Mechanics Calculation in-rock segment each
The pile side friction of pile cutoff.
Knowable to technical scheme above, the embedded rock pile model test apparatus that the utility model provides, by this embedded rock pile
Model test apparatus, can be it can be deduced that embedded rock pile be along the regularity of distribution of the side friction of pile body, stake top after vertical loading
Load and displacement at pile top relation and pile shaft force transfer law.
Above with reference to accompanying drawing describe in an illustrative manner according to the utility model proposes embedded rock pile model test apparatus.
It will be understood by those skilled in the art, however, that the embedded rock pile model test apparatus being proposed for above-mentioned the utility model, also may be used
To make various improvement on the basis of without departing from the utility model content.Therefore, protection domain of the present utility model should be by
The content of appending claims determines.
Claims (5)
1. a kind of embedded rock pile model test apparatus it is characterised in that include: base plate, dynamometry display system, displacement tester,
The loading system being located on described base plate and concrete pier base, the sillar being arranged on described concrete pier base, be arranged on described
Embedded rock pile on sillar center, it is arranged on spring below described rock, wherein,
Described loading system includes reaction frame, the jack being arranged on described reaction frame and the tune for adjusting described jack
Section screw rod, described dynamometry display system includes pressure sensor and dynamometry display instrument, and described displacement tester includes digital display thousand
Divide table and Magnetic gauge stand；Wherein,
Described embedded rock pile is provided with billet, described pressure sensor be arranged on described billet and described jack it
Between, described Magnetic gauge stand is symmetrically fixed on described reaction frame and described billet, and described digital display dial gauge is symmetricly set on institute
State on billet；Wherein,
The stake bottom of described embedded rock pile is with the bottom of described sillar in one plane；Described concrete pier base is used for adjusting experiment sky
Between, and provide space for the sedimentation of described embedded rock pile；Described spring is used for buffering the sedimentation of described embedded rock pile.
2. embedded rock pile model test apparatus as claimed in claim 1 it is characterised in that
Also include sealant, described sealant is arranged between described embedded rock pile and described sillar.
3. embedded rock pile model test apparatus as claimed in claim 1 it is characterised in that
The boring of insertion is provided with described sillar, and the bore diameter of described sillar is more than the diameter of described embedded rock pile.
4. embedded rock pile model test apparatus as claimed in claim 1 it is characterised in that
Described reaction frame includes counter-force frame body and reaction frame bottom diagonal brace；Wherein, described counter-force frame body include crossbeam and with
The perpendicular column of described crossbeam, described crossbeam is interfixed by reaction frame adjusting nut with described column.
5. embedded rock pile model test apparatus as claimed in claim 1 it is characterised in that
Described jack is separated type hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896808.7U CN205907728U (en) | 2016-08-18 | 2016-08-18 | Embedded rock pile model test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896808.7U CN205907728U (en) | 2016-08-18 | 2016-08-18 | Embedded rock pile model test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205907728U true CN205907728U (en) | 2017-01-25 |
Family
ID=57801190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620896808.7U Expired - Fee Related CN205907728U (en) | 2016-08-18 | 2016-08-18 | Embedded rock pile model test device |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643249A (en) * | 2018-05-21 | 2018-10-12 | 东南大学 | Experimental provision and its assemble method for studying stake-rock interfacial failure mechanism |
| CN109138008A (en) * | 2018-09-30 | 2019-01-04 | 中国科学院武汉岩土力学研究所 | The pilot system of embedded rock pile bearer properties in analog composite rock stratum |
| CN113848121A (en) * | 2021-09-30 | 2021-12-28 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
-
2016
- 2016-08-18 CN CN201620896808.7U patent/CN205907728U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643249A (en) * | 2018-05-21 | 2018-10-12 | 东南大学 | Experimental provision and its assemble method for studying stake-rock interfacial failure mechanism |
| CN109138008A (en) * | 2018-09-30 | 2019-01-04 | 中国科学院武汉岩土力学研究所 | The pilot system of embedded rock pile bearer properties in analog composite rock stratum |
| CN113848121A (en) * | 2021-09-30 | 2021-12-28 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
| CN113848121B (en) * | 2021-09-30 | 2022-04-01 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170125 Termination date: 20180818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |