CN205576989U - Comprehensive laboratory experiment stake model experiment device is pressed, pulled out - Google Patents
Comprehensive laboratory experiment stake model experiment device is pressed, pulled out Download PDFInfo
- Publication number
- CN205576989U CN205576989U CN201620410521.9U CN201620410521U CN205576989U CN 205576989 U CN205576989 U CN 205576989U CN 201620410521 U CN201620410521 U CN 201620410521U CN 205576989 U CN205576989 U CN 205576989U
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- China
- Prior art keywords
- lever
- pile
- experimental
- box
- pulled
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Links
- 239000002965 ropes Substances 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 230000001629 suppression Effects 0.000 claims description 17
- 238000004088 simulation Methods 0.000 claims description 12
- 239000005336 safety glasses Substances 0.000 claims description 10
- 239000000725 suspensions Substances 0.000 claims description 3
- 239000000463 materials Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 101710075621 GBLP Proteins 0.000 description 4
- 238000004458 analytical methods Methods 0.000 description 4
- 238000000034 methods Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000010586 diagrams Methods 0.000 description 1
- 239000011148 porous materials Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000003068 static Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011901 water Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Abstract
Description
Technical field
This utility model belongs to field of civil engineering, relates to a kind of earthwork test Instrument equipment, is specifically related to a kind of pressure, pulls out comprehensive laboratory experiment stake bath scaled model experimental device.
Background technology
The important means that always pile foundation engineering is theoretical is tested in performance test for stake.But when being by outdoor field experimentation, need to call a large amount of plant equipment and manpower and materials.
The situation of change of pile body surrounding soil cannot directly be observed by the outer on-the-spot test of conventional chamber, is difficult to the soil body around the pile body after pressurized carries out sampling research, and during experiment, bearing capacity of pile can be by inconveniences such as bearing capacity of pile tip are affected.It addition, traditional outdoor experiment is difficult to be monitored the resistance to shear of soil situation of whole experimentation and record, load and sedimentation for stake top can not be measured accurately.
Summary of the invention
The purpose of this utility model is to provide a kind of pressure for test pile performance, pull out comprehensive laboratory experiment stake bath scaled model experimental device.
Technical scheme is as follows:
One is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, including Model Pile, experimental box body, charger, monitoring device and experiment auxiliary device, Model Pile is positioned at the middle position of experimental box body, charger includes lever and Shi Chong counterweight, lever one end swings and is connected on model casing one side box wall, the application point of lever is positioned at the top of Model Pile, and the lever other end is through to side box wall, and its end is provided with suspender suspention and executes weight counterweight；Monitoring device includes measurement system, sensor-based system, signal acquiring system and signal processing system；Execute the active force of weight counterweight to be acted in Model Pile by lever and/or the steel wire rope that is provided with by lever.
Further, experimental box body is made up of tank tower, box plate and four sides sidewall, and sidewall is provided with movable window at the position that at least three is different on four sides；Being provided with Multi-function experimental hole at box plate, Multi-function experimental pore area has movable port lid.
Further, the four sides sidewall of described experimental box body is made up of three steel plate walls and a safety glass wall；Three different positions are had to be provided with movable window on safety glass is faced the wall and meditated.
Further, the active force executing weight counterweight is compression test by leverage in Model Pile, the end of lever directly suspends in midair executes weight counterweight, and the active force of lever, by drawing suppressive jamming meter to be acting downwardly on the upper end of Model Pile, draws suppressive jamming meter to be arranged on below the application point of lever.
Further, executing the active force weighing counterweight and being acted in Model Pile by the steel wire rope that lever is provided with is pullout tests, steel cable sliding is arranged between the application point of lever and lever end, weight counterweight is executed in one end suspention of steel wire rope, the other end active force of steel wire rope, by drawing suppressive jamming meter to be acting upwardly on the upper end of Model Pile, draws suppressive jamming meter to be arranged on below the application point of lever.
Further, application point and lever end at lever are respectively equipped with a pulley, and steel wire rope is slidably connected with the two pulley, and steel wire rope is connected with the hook in Model Pile by drawing the suspension ring on suppressive jamming meter.
Further, measurement system includes settlement gauge, Load Meter and resistance to shear of soil measuring instrument.
Further, settlement gauge includes laser range finder, dial gauge and rigidity test board, and rigidity test board is horizontally arranged at the upper end of Model Pile, and the laser probe of laser range finder faces rigidity test board, and two dial gauges are symmetricly set on rigidity test board；Load Meter be arranged on simulation stake top draw suppressive jamming meter, draw suppressive jamming meter to be arranged on below the application point of lever；Resistance to shear of soil measuring instrument is to be embedded in experimental box and be evenly distributed on the soil pressure cell around the simulation pile body soil body.
Further, experiment auxiliary device includes test instrunment laying rack, and settlement gauge is fixed on settlement instrument laying rack；Laser range finder is arranged on the lower section of instrument laying rack, and the laser probe of laser range finder faces rigidity test board 5.
Further, outside the end of lever, it is provided with a suspention bolt being connected with force counterweight；In the inner side of lever, the application point of lever and lever end are respectively equipped with a pulley, and steel wire rope is connected with lever slips by two pulleys.
This utility model beneficial effect is obvious:
(1) loading system is optimized by this utility model, utilize simple lever principle, regulation to be applied to simulate the load on stake top, can quickly carry out rubbish, the different load experiment of pressure, the utilization of pulley can facilitate and simulation stake is carried out pullout tests, saves plant equipment and other manpower and materials.
(2) the bottom hole that box plate is provided with is Multi-function experimental hole, due to the outer inevitable bearing capacity of pile tip of field experimentation of conventional chamber, the experimental analysis of single bearing capacity of pile is produced impact.Therefore we arrange Multi-function experimental hole in portion in the soleplate.When testing, stake end does not has supporting course, does not produce bearing capacity of pile tip, is obviously improved the measuring precision of pile body side friction.
(3) the four sides sidewall of experimental box body includes three steel plate walls and a safety glass wall, and experimental box body is ensureing that simulation pile body surrounding soil directly can be observed by safety glass wall by oneself high intensity simultaneously.
(4) safety glass wall has three different positions to be provided with movable window, and these three movable window can be with free switch, and the convenient soil sample taken out around pressurized pile body is conducive to being analyzed these soil samples.
(5) measurement system by instrument laying rack, dial gauge, draw suppressive jamming meter, laser range finder and soil pressure cell to form.The application of dial gauge and laser range finder makes the measurement to pile body settling amount more accurate.Soil pressure cell is distributed in around the pile body soil body according to certain altitude spacing, and axle power meter is arranged on stake top, and these instruments are connected with signal acquiring system by sensor-based system.Signal acquiring system and sensor-based system are 64 high-accuracy remote sensing casees, in real time the ess-strain of stake top load and the soil body can be measured record.Signal processing system is computer terminal, is responsible for record analysis and processes every experimental data.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is backsight structural representation of the present utility model.
Reference: instrument laying rack 1, laser range finder 2, draws suppressive jamming meter 3, dial gauge 4, rigidity test board 5, lever 6, executes weight counterweight 7, signal acquiring system 8, signal processing system 9, soil pressure cell 10, Multi-function experimental hole 11, Model Pile 12, latch 13, steel wire rope 14, pulley 15.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
One such as Fig. 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, including Model Pile 12, experimental box body, charger, monitoring device and experiment auxiliary device, Model Pile 12 is positioned at the middle position of experimental box body, charger includes lever 6 and Shi Chong counterweight 7, lever 6 one end swings and is connected on model casing one side box wall, the application point of lever 6 is positioned at the top of Model Pile 12, and lever 6 other end is through to side box wall, and its end is provided with suspender suspention and executes weight counterweight 7；Monitoring device includes measurement system, sensor-based system, signal acquiring system 8 and signal processing system 9；Execute the active force of weight counterweight 7 to be acted in Model Pile 12 by lever 6 and/or the steel wire rope 14 that is provided with by lever 6.Instrument laying rack 1 is used for placing or fix various experimental apparatus as experiment auxiliary device.
A suspention bolt being connected with force counterweight 7 it is provided with outside the end of lever 6；In the inner side of lever 6, the application point of lever 6 and lever 6 end are respectively equipped with a pulley 15, and steel wire rope 14 is slidably connected with lever 6 by two pulleys 15.
Long 1.5 meters of experimental box body 16, wide 1.5 meters, high 1.8 meters, it is made up of tank tower, box plate and four sides sidewall.The four sides sidewall of experimental box body is made up of three steel plate walls and a safety glass wall, it is ensured that high intensity.
Safety glass wall is provided with movable window at three different positions, and these three movable window can freely be opened；Box plate is provided with Multi-function experimental hole 11, and Multi-function experimental hole 11 is with movable port lid.Position when being destroyed by safety glass wall observable simulation pile body and soil deformation, movable window is convenient takes out soil at an arbitrary position when experiment, be conducive to these soil sample deployment analysis, the piling impact when pressurized, surrounding soil caused with test simulation stake 12.The Multi-function experimental hole 11 being provided with in the middle part of box plate, by the opening and closing of this experimental port, not only can facilitate water level in control chamber, when Model Pile being placed in directly over top, hole simultaneously, can be by opening and closing port lid, launch the experiment of pure pile side friction and the experimentation of pile side friction+end resistance, it is achieved Model Pile collateral resistance and collateral resistance add the piling experimental analysis of end resistance.
Monitoring device includes measurement system, sensor-based system, signal acquiring system 8 and signal processing system 9.Measurement system is connected with signal acquiring system 8 by sensor-based system, and signal acquiring system 8 is connected with signal processing system 9.
Measurement system includes settlement gauge, Load Meter and resistance to shear of soil measuring instrument.Settlement gauge is for the settling amount of measure analog pile body, and including dial gauge 4 and laser range finder 2, laser range finder 2 can measure the bigger sedimentation beyond dial gauge 4 range.Dial gauge 4 and laser range finder 2 are preferably disposed on instrument laying rack 1, wherein, laser range finder 2 is arranged on the lower section of instrument laying rack 1, rigidity test board 5 is horizontally arranged at the upper end of Model Pile 12, the laser probe of laser range finder 2 faces rigidity test board 5, and two dial gauges 4 are symmetricly set on rigidity test board 5.
Load Meter is preferably arranged on the axle power meter 3 on simulation stake top, for the load suffered by real-time measure analog stake top.
Resistance to shear of soil measuring instrument is preferably and is evenly distributed on the soil pressure cell 10 around the simulation pile body soil body according to certain altitude spacing, for measuring the ess-strain of the soil body.
Settlement gauge, Load Meter are connected with signal acquiring system 8 by sensor-based system respectively with resistance to shear of soil measuring instrument, sensor-based system and signal acquiring system 8 are dynamic/static strain testing system, can measure the ess-strain of simulation stake top load and the soil body record in real time.
Signal processing system 9 is preferably computer terminal, is responsible for record, analyzes and process every experimental data.
One, with reference to Fig. 1, during compression test: charger is by executing weight counterweight 7 and lever 6 forms.One end of lever 6 is connected to model casing by latch 13, and the other end of lever 6 adds executes weight counterweight 7, by lever principle, Model Pile 12 is applied pressure.During piling, when opening Multi-function experimental hole, not having the soil body to support bottom Model Pile, when by lever loading, pile body and the soil body only have collateral resistance as bearing capacity of pile, so, when carrying out the experimentation of Model Pile side friction, can improve experimental precision.
By lever 6 and Shi Chong counterweight 7 being adjusted the load that can control to be applied to simulate stake top flexibly, it is possible to quickly carry out multiple different loading test, conveniently and easily operate.
Two, with reference to Fig. 2, during pullout tests: charger includes lever 6, steel wire rope 14 and Shi Chong counterweight 7, lever 6 is fixed on model casing, Model Pile 12 is pulled out the suspension ring connection of axle power meter by hook with being connected to connect, suppressive jamming meter 3 will be drawn to be connected with the steel wire rope 14 crossing over pulley 15 again, steel wire rope 14 the weight counterweight 7 of executing suspended in midair is applied with the power of stirring.
Steel wire rope on pulley 15 is connected with axle power meter 3, utilize pulley principle to execute weight counterweight in the interpolation of steel wire rope 14 afterbody and Model Pile 12 is applied with pull out force, can facilitate and simulation stake 12 is carried out pullout tests, it is to avoid Vertical loading, thus eliminate heavy mechanical equipment and other manpower and materials.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410521.9U CN205576989U (en) | 2016-05-09 | 2016-05-09 | Comprehensive laboratory experiment stake model experiment device is pressed, pulled out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620410521.9U CN205576989U (en) | 2016-05-09 | 2016-05-09 | Comprehensive laboratory experiment stake model experiment device is pressed, pulled out |
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| Publication Number | Publication Date |
|---|---|
| CN205576989U true CN205576989U (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620410521.9U CN205576989U (en) | 2016-05-09 | 2016-05-09 | Comprehensive laboratory experiment stake model experiment device is pressed, pulled out |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862937A (en) * | 2016-05-09 | 2016-08-17 | 东华理工大学 | Pressing and pulling integrated experimental indoor pile model test device |
| CN106337446A (en) * | 2016-09-27 | 2017-01-18 | 石家庄铁道大学 | Indoor test device for pulling resistance of pile foundation and test method of indoor test device |
| CN106400856A (en) * | 2016-12-02 | 2017-02-15 | 广州建设工程质量安全检测中心有限公司 | Loading device and method for static load test of pile foundation |
| CN106948384A (en) * | 2017-03-16 | 2017-07-14 | 淮阴工学院 | A kind of geotechnological box model pile verticality control and the native compacting apparatus of pile body |
| CN108106939A (en) * | 2017-12-22 | 2018-06-01 | 中原工学院 | A kind of gravity compensation formula anchoring body creep effect pilot system based on lever principle |
| CN110847249A (en) * | 2019-10-14 | 2020-02-28 | 东南大学 | Indoor model device for detecting uplift resistance and horizontal bearing performance of pile foundation |
-
2016
- 2016-05-09 CN CN201620410521.9U patent/CN205576989U/en not_active IP Right Cessation
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862937A (en) * | 2016-05-09 | 2016-08-17 | 东华理工大学 | Pressing and pulling integrated experimental indoor pile model test device |
| CN106337446A (en) * | 2016-09-27 | 2017-01-18 | 石家庄铁道大学 | Indoor test device for pulling resistance of pile foundation and test method of indoor test device |
| CN106400856A (en) * | 2016-12-02 | 2017-02-15 | 广州建设工程质量安全检测中心有限公司 | Loading device and method for static load test of pile foundation |
| CN106948384A (en) * | 2017-03-16 | 2017-07-14 | 淮阴工学院 | A kind of geotechnological box model pile verticality control and the native compacting apparatus of pile body |
| CN106948384B (en) * | 2017-03-16 | 2018-11-13 | 淮阴工学院 | A kind of geotechnique's box model pile verticality control and pile body soil compacting apparatus |
| CN108106939A (en) * | 2017-12-22 | 2018-06-01 | 中原工学院 | A kind of gravity compensation formula anchoring body creep effect pilot system based on lever principle |
| CN108106939B (en) * | 2017-12-22 | 2020-10-20 | 中原工学院 | Gravity compensation type anchoring body creep effect test system based on lever principle |
| CN110847249A (en) * | 2019-10-14 | 2020-02-28 | 东南大学 | Indoor model device for detecting uplift resistance and horizontal bearing performance of pile foundation |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160914 Effective date of abandoning: 20180105 |
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| AV01 | Patent right actively abandoned |