CN206521775U - A kind of pile foundation bearer properties model test apparatus pushed under action of static load - Google Patents
A kind of pile foundation bearer properties model test apparatus pushed under action of static load Download PDFInfo
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- CN206521775U CN206521775U CN201621110492.0U CN201621110492U CN206521775U CN 206521775 U CN206521775 U CN 206521775U CN 201621110492 U CN201621110492 U CN 201621110492U CN 206521775 U CN206521775 U CN 206521775U
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Abstract
The utility model is related to a kind of pile foundation bearer properties model test apparatus pushed under action of static load, including model casing, stake model, vertically pushes loading system and measurement apparatus.Wherein model casing is the ribbing steel casing of upper opening；Pile foundation model is connected with loading lever assembly, and is arranged in model casing；Vertically loading system is pushed to be made up of loading lever assembly, vertical guide and counterweight；Measurement apparatus includes totally four, the amesdial of measurement stake top Vertical Settlement amount.The experimental rig is applied widely, and loading is easy, and Model Pile load-bearing is stable, and the stake top vertical displacement of pile foundation model can be measured exactly, can easily and effectively carry out pushing the research of pile foundation bearer properties model test under action of static load.
Description
Technical field
The utility model is related to a kind of pile foundation model test apparatus, more particularly to a kind of pile foundation pushed under action of static load
Plinth bearer properties model test apparatus.
Background technology
Pile foundation is compared with conventional cast-in-situ bored pile, with bearing capacity is small compared with high, construction site, speed of application is fast, to soil
Layer strong adaptability, the advantages of arrangement form is flexible, reinforce in transmission tower, pattern foundation pit supporting structure, extending old building, flood control dam, building
It is widely used in the engineering fields such as thing reinforcing.
For the research in terms of pile foundation resistance to compression bearer properties, mainly there are field test and the mode of indoor model test.
Although field test can preferably reflect engineering practice, due to by place space is limited, the duration is nervous, instrument and equipment
Embedded difficult, expense costly etc. the limitation of factor and can not be widely used.And indoor model test can be directed to
The main aspect of engineering subject matter carries out research targetedly, repeatable to make up the deficiency of field test, so that
As one of research and design, the effective ways for solving the problems, such as Practical Project.In view of the foregoing, indoor model examination is carried out
Test and be particularly important.
The key technology of stake resistance to compression bearer properties indoor model test is how to carry out Model Pile simple and fast and had
The loading of effect, and traditional pile foundation model test apparatus, vertically push load and are generally matched somebody with somebody by preloading or jack and reaction beam
Close and apply, jack oil pressure is unstable, it is impossible to long-time sustained loading, range for pile foundation model test load too
Greatly, it is impossible to accurately loaded, and it is not provided with the measurement apparatus of stake top vertical displacement so that result of the test can not be exactly
Reflect actual conditions.Therefore a kind of making of design is simple, loads simple and direct, Model Pile load-bearing stabilization, can efficiently and accurately survey
Stake top vertical displacement is obtained with the change for vertically pushing load so that it is one to obtain a model test apparatus for resistance to compression bearer properties
Significantly work.
Utility model content
In order to solve the technological deficiency that current pile foundation model test apparatus is present, the utility model provides a kind of applicable model
Enclose wide, the pile foundation bearer properties model test apparatus pushed under action of static load that load mode is simple and direct, the degree of accuracy is higher.
The technical solution adopted in the utility model is：A kind of pile foundation bearer properties model test pushed under action of static load
Device, its composition includes model casing, pile foundation model, vertically pushes loading system and measurement apparatus；
For the ease of viewing test state, it is ensured that the intensity of model casing, model casing is the ribbing steel casing of upper opening,
It is externally provided with channel-section steel Reinforced Hoop, and placed inside has pile foundation model.The model casing is made up of ribbing steel plate, is set outside model casing
A channel-section steel Reinforced Hoop, parallel longitudinal setting are horizontally arranged with two layers of channel-section steel Reinforced Hoop above and below having, model casing internal upper part opening
There are two channel-section steel Reinforced Hoops.
The vertical composition for pushing loading system includes loading lever assembly, vertical guide and counterweight；Pile foundation model
It is connected, and is arranged in model casing with loading lever assembly；The loading lever assembly includes loading lever, load bar, fixation
Hinged-support, wire and scale pan, in order to maintain vertically to push the stability of loading direction, while making the whole series push loading system
Detachably, load bar top is connected with loading lever by the connected mode of bolted splice, and fulcrum one end of loading lever leads to
The connected mode for crossing bolted splice is connected with fixed-hinged support, and fixed-hinged support is fixedly welded on the channel-section steel on the outer upper strata of model casing
On Reinforced Hoop, the other end of loading lever is provided with preformed hole, preformed hole and loading thick stick of the wire one end through loading lever
Bar is connected, and the wire other end is connected with scale pan, and wire keeps vertical direction；Counterweight is put on scale pan；Institute
Pile foundation model is stated with load bar bottom to be connected;
The measurement apparatus includes the amesdial and dial indicators rack of measurement stake top Vertical Settlement amount.
Vertical guide is offered vertically in the middle part of the channel-section steel Reinforced Hoop laterally set in the model casing, the load bar is passed through
Inside vertical guide, and vertically it can move under guide rail in the vertical direction.
Pile crown guard circle and backing plate are disposed with the top of the pile foundation model, pile crown guard circle material is rubber,
Backing plate is square plank；Pile crown guard circle is used to protect the pile crown of pile foundation model, as pile foundation model push load by
Force, backing plate is used to adjust the contact between pile foundation model and load bar.
The measurement apparatus is provided with four amesdials, and is symmetrically fixed on along the vertical applied force direction of pile foundation model
Four angles of square backing plate, table body keeps vertical, and measurement head contact backing plate, each amesdial is correspondingly arranged on amesdial branch respectively
Frame, dial indicators rack is located in model casing on two channel-section steel Reinforced Hoops of parallel longitudinal setting respectively.
The backing plate is arranged on below load bar and load bar is fixed on backing plate by bolt.
The loading lever is H profile steel, and rigidity is larger, is unlikely to deform, and so as to be more effectively carried out loading, improves examination
The degree of accuracy tested.
The amesdial selects digital display electronic formula amesdial, and accuracy is high, and reading is directly perceived, and with memory function, so that
Displacement at pile top can accurately and efficiently be measured.
The counterweight can apply the different loads that push to Model Pile, controlled range is wide, especially by different combining forms
It is it is required push load it is smaller when, more can accurately and efficiently be loaded so that Model Pile load-bearing is stable,
Loading is convenient.
Compared with prior art, the utility model has advantages below：
1. pile foundation model test apparatus of the present utility model is applied widely, it is simple to make, load the simple and direct, degree of accuracy compared with
Height, Model Pile load-bearing is stable, and breaching traditional experiment device can only can be realized vertically using jack and reaction beam cooperation
Push the limitation of loading；
2. the utility model utilizes lever principle, power point, the position of main force's point can be adjusted flexibly, so as to substantially reduce
Test difficulty；
3. the utility model can play a part of saving loading force by changing the arm of force；
4. the utility model load mode is greatly simplified, different counterweights only need to be placed on the scale pan outside model casing
Can just reach the purpose for applying different loads, and controlled range is wide, especially it is required push load it is smaller when, can be compared with
Accurately and efficiently to be loaded, so that Model Pile load-bearing is stable, it is convenient to load;
5. the utility model can effectively measure stake top vertical displacement with the change for vertically pushing load, accuracy of reading is straight
See, so as to obtain a resistance to compression bearer properties.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings.
Fig. 1 is front view of the present utility model；
Fig. 2 is top view of the present utility model；
Fig. 3 is vertical guide partial side view of the present utility model；
In figure：1st, model casing；2nd, model clay；3rd, channel-section steel Reinforced Hoop；4th, lever is loaded；5th, bolt；6th, pile foundation model；7、
Amesdial；8th, load bar；9th, vertical guide；10th, preformed hole；11st, wire；12nd, scale pan；13rd, fixed-hinged support；14th, stake
Head protection circle；15th, backing plate；16th, dial indicators rack.
Embodiment
As shown in Fig. 1 ~ Fig. 3, a kind of pile foundation bearer properties model test apparatus pushed under action of static load, including model
Case 1, pile foundation model 6, vertically push loading system and measurement apparatus；
For the ease of viewing test state, it is ensured that the intensity of model casing 1, model casing 1 is the ribbing steel tank of upper opening
Body, it is externally provided with channel-section steel Reinforced Hoop 3, and placed inside has pile foundation model 6.
The model casing 1 is made up of ribbing steel plate, be provided with outside model casing 1 above and below two layers of channel-section steel Reinforced Hoop 3, model casing 1
A channel-section steel Reinforced Hoop 3 is horizontally arranged with internal upper part opening, it is parallel longitudinal to be provided with two channel-section steel Reinforced Hoops 3.
The vertical composition for pushing loading system includes loading lever assembly, vertical guide 9 and counterweight；Pile foundation model
6 are connected with loading lever assembly, and are arranged in model casing 1.It is described loading lever assembly include loading lever 4, load bar 8,
Fixed-hinged support 13, wire 11 and scale pan 12, in order to maintain vertically to push the stability of loading direction, while making under the whole series
Press loading system detachable, the connected mode that the top of load bar 8 is hinged with loading lever 4 by bolt 5 is connected, and loads lever
The connected mode that 4 fulcrum one end is hinged by bolt 5 is connected with fixed-hinged support 13, and fixed-hinged support 13 is fixedly welded on
On the channel-section steel Reinforced Hoop 3 on the outer upper strata of model casing 1, the other end of loading lever 4 is provided with preformed hole 10, and the one end of wire 11 is passed through
The preformed hole 10 for loading lever 4 is connected with loading lever 4, and the other end of wire 11 is connected with scale pan 12, and wire 11
Keep vertical direction；Counterweight is put on scale pan 12；The pile foundation model 6 is connected with the bottom of load bar 8;
The measurement apparatus includes the amesdial 7 and dial indicators rack 16 of measurement stake top Vertical Settlement amount.
The middle part of channel-section steel Reinforced Hoop 3 laterally set at the inner opening of model casing 1 offers vertical guide 9 vertically, described
Load bar 8 is passed through inside vertical guide 9, and load bar 8 is constrained in the horizontal direction by vertical guide 9, and vertically guide rail 9 can be existed
Vertical direction moves up and down.
The top of the pile foundation model 6 is disposed with pile crown guard circle 14 and backing plate 15, the material of pile crown guard circle 14
For rubber, backing plate 15 is square plank；Pile crown guard circle 14 is used for the pile crown for protecting pile foundation model 6, is used as pile foundation model 6
Push load stress point, backing plate 15 is used to adjust the contact between pile foundation model 6 and load bar 8.
The measurement apparatus is provided with four amesdials 7, and amesdial 7 is along the vertical applied force direction of pile foundation model 6
Four angles of square backing plate 15 are symmetrically fixed on, the table body of amesdial 7 keeps vertical, measurement head contact backing plate 15, each 7 points of amesdial
Dial indicators rack 16 is not correspondingly arranged on, and dial indicators rack 16 is located at two of parallel longitudinal setting at the inner opening of model casing 1 respectively
On bar channel-section steel Reinforced Hoop 3.
The backing plate 15 is arranged on below load bar 8 and load bar 8 is fixed on backing plate 15 by bolt.
The loading lever 4 is H profile steel, and rigidity is larger, is unlikely to deform, and so as to be more effectively carried out loading, is improved
The degree of accuracy of experiment.
The amesdial 7 selects digital display electronic formula amesdial, and accuracy is high, and reading is directly perceived, and with memory function, so that
Displacement at pile top can accurately and efficiently be measured.
The counterweight can apply the different loads that push to Model Pile, controlled range is wide, especially by different combining forms
It is it is required push load it is smaller when, more can accurately and efficiently be loaded so that Model Pile load-bearing is stable,
Loading is convenient.
The course of work of the present apparatus：The embedding pile foundation mould in filling experiment model clay 2 used, model clay 2 in model casing 1
Type 6, can carry out half module or the experiment of full mould that single pile, multi-column pier foundation push bearer properties, the position of adjustment loading lever 4 makes
Load bar 8 is in same plane with pile foundation model 6；Position of the load bar 8 on loading lever 4 is adjusted, makes the bottom of load bar 8
The central upper portion of portion's align piles basic model 6, and it is fixed；The He of pile crown guard circle 14 is disposed successively in the stake top of pile foundation model 6
Backing plate 15；Four dial indicators racks 16 are fixed on and parallel longitudinal at the inner opening of model casing 1 are provided with two channel-section steel Reinforced Hoops 3
On, amesdial 7 has four, is installed on dial indicators rack 16, and amesdial 7 is along the vertical applied force direction pair of pile foundation model 6
Claim four angles for being fixed on square backing plate 15, the table body of amesdial 7 keeps vertical, measurement head contact backing plate；According to《Building pile foundation
Inspection specifications》（JGJ 106-2014）Select loading scheme and terminate loading standard, and estimate the resistance to compression of pile foundation model 6
Ultimate bearing capacity, is controlled by adding counterweight on scale pan 12, you can realize that application vertically pushes lotus to pile foundation model 6
Carry, and load condition can be recorded in time（Load）；Data, the stake of record pile foundation model 6 are collected by measurement apparatus
Top vertical displacement size and the average value for taking 4 data, the resistance to compression bearer properties of analysis pile foundation model 6.
Claims (7)
1. a kind of pile foundation bearer properties model test apparatus pushed under action of static load, it is characterised in that its composition includes mould
Molding box, pile foundation model, vertically push loading system and measurement apparatus；
The model casing is to lay pile foundation model in the ribbing steel casing of upper opening, model casing；Set outside model casing
A channel-section steel Reinforced Hoop, parallel longitudinal setting are horizontally arranged with two layers of channel-section steel Reinforced Hoop above and below having, model casing internal upper part opening
There are two channel-section steel Reinforced Hoops；
The vertical composition for pushing loading system includes loading lever assembly, vertical guide and counterweight；
The loading lever assembly includes loading lever, load bar, fixed-hinged support, wire and scale pan, load bar top
It is connected with loading lever by the connected mode of bolted splice, loads the connection side that fulcrum one end of lever passes through bolted splice
Formula is connected with fixed-hinged support, and fixed-hinged support is fixedly welded on the channel-section steel Reinforced Hoop on the outer upper strata of model casing, loads lever
The other end be provided with preformed hole, wire one end is connected through the preformed hole of loading lever with loading lever, and wire is another
One end is connected with scale pan, and wire keeps vertical direction；Counterweight is put on scale pan；The pile foundation model and loading
Bar bottom is connected;
The measurement apparatus includes the amesdial and dial indicators rack of measurement stake top Vertical Settlement amount.
2. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 1, it is special
Levy and be, vertical guide, the loading are offered vertically in the middle part of the channel-section steel Reinforced Hoop laterally set at the model casing inner opening
Bar can be moved vertically under guide rail in the vertical direction through inside vertical guide.
3. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 1, it is special
Levy and be, pile crown guard circle and backing plate are disposed with the top of the pile foundation model, backing plate is square plank, pile crown protection
Loop material matter is rubber.
4. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 3, it is special
Levy and be, the measurement apparatus is provided with four amesdials, and amesdial is symmetrical along the vertical applied force direction of pile foundation model
Four angles of square backing plate are fixed on, amesdial table body keeps vertical, and each amesdial is correspondingly arranged on dial indicators rack, thousand respectively
It is divided to table support to be located at respectively at model casing inner opening on two channel-section steel Reinforced Hoops of parallel longitudinal setting.
5. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 3, it is special
Levy and be, the backing plate is arranged on below load bar and load bar is fixed on backing plate by bolt.
6. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 1, it is special
Levy and be, the loading lever is H profile steel.
7. a kind of pile foundation bearer properties model test apparatus pushed under action of static load according to claim 1 or 4, its
It is characterised by, the amesdial selects digital display electronic formula amesdial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110492.0U CN206521775U (en) | 2016-10-11 | 2016-10-11 | A kind of pile foundation bearer properties model test apparatus pushed under action of static load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621110492.0U CN206521775U (en) | 2016-10-11 | 2016-10-11 | A kind of pile foundation bearer properties model test apparatus pushed under action of static load |
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| Publication Number | Publication Date |
|---|---|
| CN206521775U true CN206521775U (en) | 2017-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621110492.0U Expired - Fee Related CN206521775U (en) | 2016-10-11 | 2016-10-11 | A kind of pile foundation bearer properties model test apparatus pushed under action of static load |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351267A (en) * | 2016-10-11 | 2017-01-25 | 沈阳建筑大学 | Pile foundation bearing characteristic model testing device under down-pressing static load effect |
| CN108775995A (en) * | 2018-06-14 | 2018-11-09 | 河海大学 | A kind of multi-functional loading frame and stake shock test method |
-
2016
- 2016-10-11 CN CN201621110492.0U patent/CN206521775U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351267A (en) * | 2016-10-11 | 2017-01-25 | 沈阳建筑大学 | Pile foundation bearing characteristic model testing device under down-pressing static load effect |
| CN108775995A (en) * | 2018-06-14 | 2018-11-09 | 河海大学 | A kind of multi-functional loading frame and stake shock test method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 Termination date: 20191011 |