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 PDF

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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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Application number
CN201620410521.9U
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Chinese (zh)
Inventor
梁海安
刘运庆
杨泽平
杨伟峰
万超
张敏思
任恒飞
杨勇
罗晞睿
薛凯喜
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东华理工大学
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Priority to CN201620410521.9U priority Critical patent/CN205576989U/en
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Publication of CN205576989U publication Critical patent/CN205576989U/en

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Abstract

The utility model discloses a comprehensive laboratory experiment stake model experiment device is pressed, pulled out, including model pile, experiment box, loading device, monitoring devices and experiment auxiliary device, model pile lies in the middle position of experiment box, and loading device includes lever and shi chong weight, and the swing of lever one end is connected on the tank wall of mold box one side, and the application point of lever lies in model pile's top, and the lever other end passes the offside tank wall, and its end is equipped with and suspends the ware in midair and suspend in midair and execute the weight weight, monitoring devices includes measurement system, sensing system, signal acquisition system and signal processing system, the effort of executing heavy weight is used in model pile through the lever and/or through the wire rope who is equipped with on the lever on. The utility model discloses beneficial effect is obvious, can conveniently carry out all kinds of resistance to compression stakes, anti -floating pile experiment, has saved manpower and materials, has improved the efficiency of experiment.

Description

One is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device

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)

1. a pressure, pull out comprehensive laboratory experiment stake bath scaled model experimental device, including Model Pile (12), experimental box body, charger, monitoring device and experiment auxiliary device, it is characterized in that, Model Pile (12) is positioned at the middle position of experimental box body, charger includes lever (6) and executes weight 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), 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).
One the most according to claim 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterised in that 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 (11) at box plate, Multi-function experimental hole (11) are with movable port lid.
One the most according to claim 2 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterised in that: 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.
One the most according to claim 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterized in that, the active force executing weight counterweight (7) acts on the upper i.e. compression test of Model Pile (12) by lever (6), the end of lever (6) directly suspends in midair executes weight counterweight (7), the active force of lever (6), by drawing suppressive jamming meter (3) to be acting downwardly on the upper end of Model Pile (12), draws suppressive jamming meter (3) to be arranged on below the application point of lever (6).
A kind of pressure the most according to claim 1, pull out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterized in that, the active force executing weight counterweight (7) acts on the upper i.e. pullout tests of Model Pile (12) by the steel wire rope (14) that lever (6) is provided with, steel wire rope (14) is slidably arranged between the application point of lever (6) and lever (6) end, weight counterweight (7) is executed in one end suspention of steel wire rope (14), the other end active force of steel wire rope (14) is acting upwardly on the upper end of Model Pile (12) by drawing suppressive jamming meter (3), suppressive jamming meter (3) is drawn to be arranged on below the application point of lever (6).
One the most according to claim 5 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterized in that, application point and lever (6) end at lever (6) are respectively equipped with a pulley, steel wire rope (14) is slidably connected with the two pulley, and steel wire rope (14) is connected with the hook in Model Pile (12) by drawing the suspension ring on suppressive jamming meter (3).
One the most according to claim 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterised in that measurement system includes settlement gauge, Load Meter and resistance to shear of soil measuring instrument.
One the most according to claim 7 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterized in that, settlement gauge includes laser range finder (2), dial gauge (4) and rigidity test board (5), 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 be arranged on simulation stake top draw suppressive jamming meter (3), draw suppressive jamming meter (3) to be arranged on below the application point of lever (6);Resistance to shear of soil measuring instrument is to be embedded in experimental box and be evenly distributed on the soil pressure cell (10) around the simulation pile body soil body.
One the most according to claim 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterised in that experiment auxiliary device includes test instrunment laying rack (1), and settlement gauge is fixed on settlement instrument laying rack (1);Laser range finder (2) is arranged on the lower section of instrument laying rack (1), and the laser probe of laser range finder (2) faces rigidity test board (5).
One the most according to claim 1 is pressed, is pulled out comprehensive laboratory experiment stake bath scaled model experimental device, it is characterised in that be provided with a suspention bolt being connected with force counterweight (7) 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, and steel wire rope (14) is slidably connected with lever (6) by two pulleys.
CN201620410521.9U 2016-05-09 2016-05-09 Comprehensive laboratory experiment stake model experiment device is pressed, pulled out CN205576989U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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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Granted publication date: 20160914

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