CN205662958U - Concrete spread foundation test device - Google Patents
Concrete spread foundation test device Download PDFInfo
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- CN205662958U CN205662958U CN201620552485.XU CN201620552485U CN205662958U CN 205662958 U CN205662958 U CN 205662958U CN 201620552485 U CN201620552485 U CN 201620552485U CN 205662958 U CN205662958 U CN 205662958U
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- 238000012360 testing method Methods 0.000 title claims abstract description 83
- 239000002689 soil Substances 0.000 claims abstract description 92
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 239000011888 foil Substances 0.000 claims abstract description 33
- 238000009826 distribution Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 40
- 238000003825 pressing Methods 0.000 claims description 23
- 238000003556 assay Methods 0.000 claims description 9
- 239000004576 sand Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 16
- 238000004140 cleaning Methods 0.000 description 7
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- 238000002360 preparation method Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 5
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- 238000005520 cutting process Methods 0.000 description 4
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- 239000010959 steel Substances 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
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- 206010030113 Oedema Diseases 0.000 description 1
- 230000000454 anti-cipatory effect Effects 0.000 description 1
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- 239000003795 chemical substances by application Substances 0.000 description 1
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- 238000005345 coagulation Methods 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
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- 238000003892 spreading Methods 0.000 description 1
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Abstract
The utility model discloses a concrete spread foundation test device, including foundation ditch, soil pressure cell, concrete spread foundation test piece, foil gage, biography power short column, hydraulic pressure static pressure stake machine and the stake of biography power plain concrete four angles of concrete spread foundation test piece bottom surface respectively set up a soil pressure cell, and the soil pressure cell that lies in cornerwise two angles department respectively is provided with a soil pressure cell along the both sides rather than adjacent and diagonal, and the soil pressure cell of three soil pressure cell on rather than adjacent angle distribution is the square, the foil gage respectively is provided with two at a hypotenuse of concrete spread foundation test piece with the base that corresponds, and two foil gages that are close to the power that passes short column on hypotenuse and the base are located same vertical on -line, and the foil gage is about a perpendicular plane of symmetry symmetry of concrete spread foundation test piece. The utility model discloses use rationally to have set up the position of foil gage with soil pressure cell, improved the experimental degree of accuracy that is greater than 2.5 concrete spread foundation test piece to the ratio of width to height.
Description
Technical field
This utility model relates to a kind of concrete spread foundation full scale test field, is specifically related to a kind of concrete extension base
Plinth assay device.
Background technology
At present, concrete spread foundation is one of principal mode of electric power line steel tower.During UHV transmission line is built, base
Plinth cost accounts for the 16% ~ 20% of overall investment, and therefore the optimization design on basis plays an important role with cost for saving the duration.
Reduce the cutting depth of foundation soil, i.e. reduce the height of footing step, can be significantly for economic angle
Reduce cost, and can accelerate the duration.But, concrete spread foundation strictly observes step width in existing national sector standard
The requirement less than 2.5 of the high ratio, so reducing the height of footing step, the width height ratio of steps of concrete spread foundation will exceed
Specification limit.And using concrete spread foundation when, owing to downforce is increasing, and part geological condition ground
Base low bearing capacity, sole plate area generally requires increase.It practice, the limit that concrete spread foundation the ratio of width to height is less than 2.5
Value is that the demand supposed based on the distribution of foundation bottom stress plane section is set out, and breaks through at present concrete spread foundation step width
High than the requirement limited, need the sub-grade reaction distribution to the width height ratio of steps aspect ratio concrete spread foundation more than 2.5
Situation research experiment, preferably to recognize mechanical characteristic and the sub-grade reaction distribution rule on this class basis.
For concrete spread foundation, outdoor full scale test more can reflect its true mechanical characteristic objectively, but
It is that traditional concrete spread foundation full scale test device is trying more than the concrete spread foundation of 2.5 limit values for the ratio of width to height
During part, concrete spread foundation test specimen pastes the position of foil gauge and bottom concrete spread foundation test specimen, lays soil pressure
The arrangement of box can not reflect the ratio of width to height concrete spread foundation test specimen more than 2.5 well and be produced in loading procedure
Raw deformation and the reaction distribution rule of substrate so that the experimental accuracy of full scale test reduces.
Utility model content
Technical problem to be solved in the utility model is the defect for conventional Extension basis full scale test method, it is provided that
A kind of concrete spread foundation assay device, solves conventional Extension basis full scale test method and is more than 2.5 in test the ratio of width to height
During concrete spread foundation test specimen, the position of patch foil gauge and laying soil pressure cell can not reflect concrete extension base well
Plinth test specimen is the problem of the reaction distribution rule of produced deformation and substrate in loading procedure.
This utility model is achieved through the following technical solutions: a kind of concrete spread foundation assay device, including foundation ditch, institute
Stating and be provided with the soil pressure cell being embedded in back fill course bottom foundation ditch, described soil pressure cell is provided above concrete spread foundation
Test specimen, described concrete spread foundation test specimen is provided with foil gauge, and it is short that concrete spread foundation test specimen top is provided with power transmission
Post, also includes that hydraulic static pile pressing machine, the jaw of described hydraulic static pile pressing machine accompany the power transmission element being positioned at above power transmission short column
Concrete-pile, respectively arranges a soil pressure cell at four angles of described concrete spread foundation test specimen bottom surface, is located therein one
Soil pressure cell at cornerwise two angles is each provided with a soil pressure cell along the both sides being adjacent and diagonal, arranges afterwards
The angle that is adjacent of three soil pressure cells on the distribution of soil pressure cell square；Described foil gauge extends base at concrete
One hypotenuse of plinth test specimen and corresponding base are each provided with two, wherein, near two of power transmission short column on hypotenuse and base
Foil gauge is positioned on same vertical curve, and described four foil gauges are about faced by a vertical symmetry of concrete spread foundation test specimen
Claim.In prior art, traditional concrete spread foundation full scale test device is testing the concrete spread foundation of aspect ratio,
I.e. short than general concrete spread foundation, floor space is big, the ratio of width to height more than the concrete spread foundation of 2.5 limit values, concrete expands
Paste on the test specimen of exhibition basis foil gauge and bottom concrete spread foundation test specimen, lay the position of soil pressure cell can not be very
Reflect well concrete spread foundation test specimen produced deformation and reaction distribution rule of substrate in loading procedure, make
The experimental accuracy obtaining full scale test reduces.In order to solve this problem, this utility model has reset the position of patch foil gauge
Putting and concrete spread foundation bottom surface arranges the position of soil pressure cell, found by practice, this kind of paving mode can be effective
Reflect the ratio of width to height more than the concrete spread foundation test specimen of 2.5 limit values produced deformation and substrate in loading procedure
Reaction distribution rule.
Further, the length of side of described concrete spread foundation bottom surface is 2500mm, the soil pressure cell being positioned on diagonal
It is 850mm with the distance between the soil pressure cell arranged along its adjacent both sides.Found by practice, lay soil according to this ratio
Pressure cell can be effectively reflected the ratio of width to height more than the reaction distribution rule bottom the concrete spread foundation test specimen of 2.5 limit values.
Further, equivalently-sized groove, institute it are provided with bottom described power transmission short column top and power transmission plain concrete pile
Being provided with pressure transducer in stating groove, described pressure transducer connects piezometry instrument.When power transmission short column top and biography
Bottom power plain concrete pile during contact, the groove inner shell of formation arranges pressure transducer, and the size of pressure transducer is preferably with recessed
Groove size matches, and the pressure transducer when loading can be avoided to be moved, after setting pressure transducer, by external pressure
Force detector device can survey the size of every grade of load, it is simple in loading procedure, controlled loading speed makes load stable.It addition,
Pressure transducer can also be arranged between the jaw of hydraulic static pile pressing machine and power transmission plain concrete pile, power transmission short column and extension
Between the test specimen of basis, lie in a horizontal plane in inside power transmission plain concrete pile or power transmission short column.
The implementation method of a kind of concrete spread foundation test, comprises the following steps:
A preparation before (), full scale test, carries out load calibrating including utilizing testing machine, utilizes standard soil pressure cell
Resistance instrument filter out can meet require gum base concrete strain sheet, get out pressure transducer and cleaning work scene need not
The foreign material wanted；
B the building of device needed for (), full scale test, including excavation pit, buries soil pressure cell, laying concrete mats underground
Layer, laying bar-mat reinforcement, casting concrete, concrete curing, patch foil gauge, placement force sensor and hydraulic static pile pressing machine
In place；
C concrete spread foundation test specimen is loaded by (), use hydraulic static pile pressing machine；
(d), tested after to on-the-spot cleaning work.
This method is divided into four big steps, is first by the preparation before full scale test, and preparation includes utilizing examination
Machine of testing soil pressure cell is carried out load calibrating, utilize measuring resistance instrument filter out can meet require gum base concrete strain sheet,
Get out pressure transducer and the on-the-spot unnecessary foreign material of cleaning work, after preparation completes, start to build test relevant
Device and equipment, building include excavation pit, bury underground soil pressure cell, lay concrete cushion, to lay bar-mat reinforcement, casting mixed
Solidifying soil, concrete curing, patch foil gauge, placement force sensor and hydraulic static pile pressing machine are in place, use after having built
Hydraulic static pile pressing machine loads, site clearing after loaded.By the data measured by test, it is possible to extension base
The mechanical characteristic of plinth, strain regime are analyzed with sub-grade reaction distribution, to judge that the ratio of width to height of spread foundation step whether may be used
With the limit value more than 2.5.This utility model uses more preferably method for arranging patch foil gauge and laying soil pressure cell, substantially increases
For the ratio of width to height more than the experimental accuracy of the concrete spread foundation test specimen of 2.5 limit values, result of the test is made to connect with truth
Closely, additionally for the concrete spread foundation of aspect ratio, traditional concrete spread foundation full scale test loading system then needs
Want large-area and build reaction frame and jack, not only lose time, and increase experimentation cost, make the efficiency of full scale test
Reduce.This utility model does not use jack reaction frame system to load, but carries out static(al) with hydraulic static pile pressing machine and add
Carry.The axial pressure or the eccentricity pressure that act on spread foundation top in Practical Project can be with hydraulic static pile pressing machine generations
Vertical static pressure is simulated, hydraulic static pile pressing machine relatively reaction frame have noiselessness when having conveniently moving, low cost, construction,
Friction, free of contamination advantage, and eliminate and set up this loaded down with trivial details operating process of reaction frame, be greatly accelerated test into
Journey.The time not only shortening full scale test also a saving experimentation cost.
Further, in described step (b), during excavation pit, cutting depth is until supporting course, and the soil body of foundation ditch periphery needs
Carrying out supporting, in place, periphery arranges gutter.The soil body of foundation ditch periphery needs a certain degree of supporting, can use put slope or
The methods such as person's inner support, the loosened soil on the foundation ditch top layer dug needs first to clean out, the most again the equating end, hole, arranges at place periphery
Hydrops is not had in place when the purpose in gutter is to ensure that the rainy day.
Further, in described step (b), when burying soil pressure cell underground, first bury the position paving of pressure cell underground carefully in plan
Sand is also compacted, and fine sand thickness is 1 to 3 centimetre, then makes soil pressure cell be placed horizontally at above fine sand and move back and forth soil pressure
Box, connects soil pressure cell and vibrating wire frequency measurer afterwards, finally places fine sand above soil pressure cell and backfill soil, soil pressure
The fine sand thickness laid above box is 5 to 7 centimetres, and back fill course than soil pressure cell is high 5 to 7 centimetres.Pressure is buried underground in plan
The position paving fine sand of box compacting make soil pressure cell bottom surface uniform force, make soil pressure cell be placed horizontally at above fine sand and come
Return dynamic soil pressure box is to reach soil pressure cell and fine sand layer tight and the purpose of close contact, soil pressure cell and vibratory string frequency
Detector connects, and operator can be made to observe the sub-grade reaction distribution situation of spread foundation by vibrating wire frequency measurer.
The fine sand thickness laid below soil pressure cell be 1 to 3 centimetre so that soil pressure cell bottom surface uniform force, above soil pressure cell
The fine sand thickness laid is 5 to 7 centimetres, and stress can be avoided to concentrate, and spreads fine sand above back fill course height and soil pressure cell
After height identical, convenient after lay concrete cushion above it.
Further, in described step (b), after foil gauge posts, connect foil gauge and strain case, strain case data measured
After be transferred to computer, automatically recorded by DH3816 static strain measuring instrument software and analyzed.Use static strain measuring instrument
Software automatically can record data in computer and be analyzed, thus reduces the workload of operator.Pass through static strain
The data that measuring instrument software analysis obtains can make operator observe the situation of change of spread foundation test specimen upper stress.
Further, in described step (b), pressure transducer is positioned over that spread foundation top is reserved in advance to be set
Groove is interior and fixes its position, is connected with computer outside the venue by pressure transducer.Pressure transducer is placed on and pre-sets
Groove in pressure transducer will not be moved in loading procedure, pressure transducer is connected permissible after computer outside the venue
The size of every grade of load is surveyed, it is simple to controlled loading speed makes load stable in loading procedure in loading procedure.
Further, in described step (b), use the lifting machine of hydraulic static pile pressing machine by prefabricated power transmission concrete
Stake hangs in the piling case of pile press machine, clamps power transmission concrete-pile with the pile-clamp of hydraulic static pile pressing machine, slowly reduces biography
Power concrete-pile so that it is align with pressure transducer, the bottom that pressure transducer is stuck in power transmission concrete-pile is reserved in groove.
Groove bottom power transmission concrete-pile agrees with the groove at spread foundation top, is stuck in groove by pressure transducer, loaded
In journey, pressure transducer will not be moved, and the mensuration making loading load is more accurate.
Further, described step (c) carried out prestrain before formally loading.Apply prestrain, treat prestrain
Instrumentation the most formally loads after normally working and being consistent with anticipatory data.
This utility model compared with prior art, has such advantages as and beneficial effect:
1, the utility model proposes a kind of concrete spread foundation assay device, this device is by reasonably arranging soil pressure
Power box is in the position of concrete spread foundation test specimen bottom surface and pastes the position of foil gauge on concrete spread foundation test specimen,
Improve for the ratio of width to height more than the experimental accuracy of the concrete spread foundation test specimen of 2.5 limit values, make test and practical operation
Situation be more nearly；
2, this utility model uses hydraulic static pile pressing machine to instead of reaction frame and jack system, is effectively improved pin
Conventional efficient to the ratio of width to height concrete spread foundation test more than 2.5, provides cost savings and decreases the time；
3, this utility model show that by practice should be provided above thickness at steel chord type soil pressure cell is 5 to 7 centimetres
Fine sand, makes stress be distributed very well, adds the precision of test.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the one of the application
Part, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is flow chart of the present utility model；
Fig. 2 is the schematic diagram of foil gauge position；
Fig. 3 is that soil pressure cell arranges schematic diagram.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this
Utility model, is not intended as restriction of the present utility model.
Embodiment 1
As shown in Figures 2 and 3, the present embodiment is a kind of concrete spread foundation assay device, including foundation ditch, described foundation ditch
Bottom is provided with the soil pressure cell being embedded in back fill course, and described soil pressure cell is provided above concrete spread foundation test specimen,
Being provided with foil gauge on described concrete spread foundation test specimen, concrete spread foundation test specimen top is provided with power transmission short column, also
Including hydraulic static pile pressing machine, the jaw of described hydraulic static pile pressing machine accompanies the power transmission plain concrete being positioned at above power transmission short column
Stake, it is characterised in that one soil pressure cell is respectively set at four angles of described concrete spread foundation test specimen bottom surface, is located therein
Article one, the soil pressure cell at cornerwise two angles is each provided with a soil pressure cell along the both sides being adjacent and diagonal, after
The distribution of the soil pressure cell on angle that three soil pressure cells arranged are adjacent is square；Described foil gauge expands at concrete
One hypotenuse and the corresponding base of exhibition basis test specimen are each provided with two, wherein, near power transmission short column on hypotenuse and base
Two foil gauges are positioned on same vertical curve, and described four foil gauges are about a vertical symmetry of concrete spread foundation test specimen
Face is symmetrical.Further, the length of side of described concrete spread foundation bottom surface is 2500mm, the soil pressure cell being positioned on diagonal with
Distance between the soil pressure cell that its adjacent both sides are arranged is 850mm.Further, described power transmission short column top and power transmission element
Being provided with equivalently-sized groove bottom concrete-pile, be provided with pressure transducer in described groove, described pressure transducer is even
It is connected to piezometry instrument.During work, first dig foundation ditch, bottom foundation ditch, lay soil pressure cell according to position shown in Fig. 3, afterwards
Above soil pressure cell, place concrete spread foundation test specimen, concrete spread foundation test specimen sets according to position shown in Fig. 2
Putting foil gauge, be connected with vibrating wire frequency measurer by soil pressure cell, foil gauge is connected with static strain measuring instrument, at concrete
Power transmission short column is installed at spread foundation test specimen top, and power transmission short column top arranges groove, placement force sensor in groove, and pressure passes
Sensor is connected with piezometry instrument, clamps power transmission plain concrete pile by controlling hydrostatic pile press machine jaw, and power transmission element mixes
Solidifying soil stake bottom groove aligns with power transmission short column top groove, finally starts to load, and is examined by piezometry instrument, vibratory string frequency
Survey the data measured by instrument and static strain measuring instrument and can analyze mechanical characteristic and the substrate of concrete spread foundation test specimen
Reaction distribution rule.
Embodiment 2
As it is shown in figure 1, the implementation method of a kind of concrete spread foundation test, comprise the following steps:
A preparation before (), full scale test, carries out load calibrating including utilizing testing machine, utilizes standard soil pressure cell
Resistance instrument filter out can meet require gum base concrete strain sheet, get out pressure transducer and cleaning work scene need not
The foreign material wanted；
B the building of device needed for (), full scale test, including excavation pit, buries soil pressure cell, laying concrete mats underground
Layer, laying bar-mat reinforcement, casting concrete, concrete curing, patch foil gauge, placement force sensor and hydraulic static pile pressing machine
In place；
C concrete spread foundation test specimen is loaded by (), use hydraulic static pile pressing machine；
(d), tested after to on-the-spot cleaning work.
Further, in described step (b), during excavation pit, cutting depth is until supporting course, and the soil body of foundation ditch periphery needs
Carrying out supporting, in place, periphery arranges gutter.Further, in described step (b), when burying soil pressure cell underground, first at meter
Drawing and bury the position paving fine sand of pressure cell underground and be compacted, fine sand thickness is 1 to 3 centimetre, then makes soil pressure cell be placed horizontally at carefully
Above sand and move back and forth soil pressure cell, connect soil pressure cell and vibrating wire frequency measurer afterwards, finally above soil pressure cell
Placing fine sand and backfill soil, the fine sand thickness laid above soil pressure cell is 5 to 7 centimetres, and back fill course than soil pressure cell is high by 5
To 7 centimetres.Further, in described step (b), after foil gauge posts, connect foil gauge and strain case, strain case data measured
After be transferred to computer, automatically recorded by DH3816 static strain measuring instrument software and analyzed.Further, described step
In (b), pressure transducer it is positioned in the groove set is reserved in advance in spread foundation top and fixes its position, will pressure
Force transducer is connected with computer outside the venue.Further, in described step (b), the lifting machine using hydraulic static pile pressing machine will be pre-
The power transmission concrete-pile made hangs in the piling case of pile press machine, clamps power transmission coagulation with the pile-clamp of hydraulic static pile pressing machine
Soil stake, slowly reduces power transmission concrete-pile so that it is align with pressure transducer, pressure transducer is stuck in power transmission concrete-pile
Bottom is reserved in groove.Further, described step (c) carried out prestrain before formally loading.
When using this method, preparation before first carrying out full scale test: include utilizing testing machine that soil pressure cell is entered
Row load calibrating, utilize measuring resistance instrument filter out can meet requirement gum base concrete strain sheet, get out pressure transducer
And the on-the-spot unnecessary foreign material of cleaning work.Then, build the device and equipment used needed for full scale test, excavation pit,
Cutting depth, until supporting course, carries out supporting to the soil body of foundation ditch periphery, is arranged around gutter in place, after having dug foundation ditch,
Spreading a layer thickness bottom foundation ditch is the fine sand layer of 2cm, places soil pressure cell, lay above soil pressure cell above fine sand layer
The fine sand layer that 5cm is thick, backfills soil afterwards, and back fill course height adds the height of 5cm fine sand layer equal to the height of soil pressure cell, will
Soil pressure cell is connected with vibrating wire frequency measurer, lays concrete cushion afterwards, at concrete cushion above back fill course
The framework of steel reinforcement on basis is laid in top, and according to the structural working drawing of spread foundation, the periphery at bar-mat reinforcement props up lifting plate, and pours
The concrete of desired strength and its superstructure, afterwards according to national standard concrete curing condition maintenance basis 28 days,
Early strength agent can also be added and accelerate maintenance, after maintenance completes, stick gum base concrete strain sheet in spread foundation test specimen side, strain
Sheet directly utilizes p-wire and is connected with strain case, is transferred to computer, DH3816 static strain measures after strain case data measured
Instrument software automatically records and analyzes, placement force sensor in the groove at spread foundation test specimen top, connects pressure and passes
Sensor and computer outside the venue, last hydraulic static pile pressing machine admission, the lifting machine of hydraulic static pile pressing machine admission is by prefabricated biography
Power concrete-pile hangs in the piling case of pile press machine, clamps power transmission concrete-pile with the pile-clamp of hydraulic static pile pressing machine, slow
Slow reduction power transmission concrete-pile, and make it align with pressure transducer, just pressure transducer is stuck at the bottom of power transmission concrete-pile
In the groove that portion and spread foundation test specimen top are reserved, build device and after equipment worked, carry out prestrain, prestrain institute
Apply load is maximum load 3% ~ 10%, treat that prestrain instrumentation is working properly, with expection basically identical after the most formal
Loading, formal loading uses single cycle to be incremented by step by step and loads.Start by 100kN load, after crack soon occurring to test specimen by
50kN is loaded into the width in test specimen crack and reaches 0.3mm, is loaded into spread foundation by 100kN the most again and can not hold lotus or reach
To the loading upper limit of equipment, in loading procedure, every grade of loading carries out reading after stablizing 1 to 2 second.When after the bearing capacity that reaches capacity,
Unload, and record corresponding data, tested rear place cleaning.
Above-described detailed description of the invention, is entered the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (3)
1. a concrete spread foundation assay device, including foundation ditch, is provided with bottom described foundation ditch and is embedded in back fill course
Soil pressure cell, described soil pressure cell is provided above concrete spread foundation test specimen, described concrete spread foundation test specimen sets
Being equipped with foil gauge, concrete spread foundation test specimen top is provided with power transmission short column, also includes hydraulic static pile pressing machine, described hydraulic pressure
The jaw of static pile press accompanies the power transmission plain concrete pile being positioned at above power transmission short column, it is characterised in that at described concrete
Four angles of spread foundation test specimen bottom surface respectively arrange a soil pressure cell, are located therein the soil pressure at cornerwise two angles
Power box is each provided with a soil pressure cell along the both sides being adjacent and diagonal, and rear three soil pressure cells arranged are adjacent
Angle on the distribution of soil pressure cell square；Described foil gauge is in a hypotenuse of concrete spread foundation test specimen and correspondence
Base be each provided with two, wherein, hypotenuse and base are positioned on same vertical curve near two foil gauges of power transmission short column,
Described four foil gauges are about a vertical symmetry plane symmetry of concrete spread foundation test specimen.
A kind of concrete spread foundation assay device the most according to claim 1, it is characterised in that described concrete extends
The length of side of the bottom of foundation is 2500mm, the soil pressure cell on diagonal with between the soil pressure cell arranged along its adjacent both sides
Distance be 850mm.
A kind of concrete spread foundation assay device the most according to claim 1, it is characterised in that described power transmission short column top
It is provided with equivalently-sized groove bottom portion and power transmission plain concrete pile, in described groove, is provided with pressure transducer, described pressure
Force transducer connects piezometry instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552485.XU CN205662958U (en) | 2016-06-08 | 2016-06-08 | Concrete spread foundation test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620552485.XU CN205662958U (en) | 2016-06-08 | 2016-06-08 | Concrete spread foundation test device |
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| CN205662958U true CN205662958U (en) | 2016-10-26 |
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| CN201620552485.XU Expired - Fee Related CN205662958U (en) | 2016-06-08 | 2016-06-08 | Concrete spread foundation test device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862943A (en) * | 2016-06-08 | 2016-08-17 | 国网四川省电力公司经济技术研究院 | Concrete expansion foundation experiment device and realization method |
| CN106524959A (en) * | 2016-11-17 | 2017-03-22 | 太原理工大学 | System and method of monitoring stability of filling column body |
| CN107271281A (en) * | 2017-07-18 | 2017-10-20 | 国网四川省电力公司经济技术研究院 | Experimental rig and method for double-deck armored concrete spread foundation uplift test |
| CN107340383A (en) * | 2017-07-18 | 2017-11-10 | 国网四川省电力公司经济技术研究院 | Device and preparation method for the measurement of concrete spread foundation sub-grade reaction distribution |
| CN112195987A (en) * | 2020-10-16 | 2021-01-08 | 东北大学 | Structural slab extension foundation stress failure test device |
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2016
- 2016-06-08 CN CN201620552485.XU patent/CN205662958U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862943A (en) * | 2016-06-08 | 2016-08-17 | 国网四川省电力公司经济技术研究院 | Concrete expansion foundation experiment device and realization method |
| CN105862943B (en) * | 2016-06-08 | 2017-09-26 | 国家电网公司 | A kind of concrete spread foundation experimental rig and implementation method |
| CN106524959A (en) * | 2016-11-17 | 2017-03-22 | 太原理工大学 | System and method of monitoring stability of filling column body |
| CN106524959B (en) * | 2016-11-17 | 2018-11-30 | 太原理工大学 | A kind of system and method for monitoring filling cylinder stability |
| CN107271281A (en) * | 2017-07-18 | 2017-10-20 | 国网四川省电力公司经济技术研究院 | Experimental rig and method for double-deck armored concrete spread foundation uplift test |
| CN107340383A (en) * | 2017-07-18 | 2017-11-10 | 国网四川省电力公司经济技术研究院 | Device and preparation method for the measurement of concrete spread foundation sub-grade reaction distribution |
| CN107271281B (en) * | 2017-07-18 | 2019-10-18 | 国网四川省电力公司经济技术研究院 | Experimental rig and method for the double-deck armored concrete spread foundation uplift test |
| CN112195987A (en) * | 2020-10-16 | 2021-01-08 | 东北大学 | Structural slab extension foundation stress failure test device |
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