CN106403798A - Device and system for measuring internal displacement of concrete and installation method of system - Google Patents
Device and system for measuring internal displacement of concrete and installation method of system Download PDFInfo
- Publication number
- CN106403798A CN106403798A CN201611189058.0A CN201611189058A CN106403798A CN 106403798 A CN106403798 A CN 106403798A CN 201611189058 A CN201611189058 A CN 201611189058A CN 106403798 A CN106403798 A CN 106403798A
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- Prior art keywords
- foil gauge
- probe
- face
- inside concrete
- displacement
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
Abstract
The invention provides a device and system for measuring internal displacement of concrete and an installation method of the system. The device comprises a casing, a spring, a probe and a bushing, the fixed end of the spring is connected with the casing, gaps exist between the first and second sides of the spring and the casing respectively, the first and second sides are provided with foil gauges respectively, the foil gauges are close to the fixed end of the spring, the position, corresponding to a free end, of the casing is provided with a first through hole whose internal diameter is larger than the bushing, the probe is connected with the free end, one end of the probe extends out of the casing via the first through hole, and the bushing sleeves the probe movably. The device is high in sealing performance, and long in service life. The system for measuring the internal displacement of concrete comprises the devices, and the devices are connected via conduits, and the system is high in precision. An installation method of the system comprises that a template supports the probe so that the probe has a certain precompressed amount, the bushing makes contact with the template, and bidirectional displacement can be measured.
Description
Technical field
The present invention relates to inside concrete displacement measurement field, in particular to a kind of measurement inside concrete displacement
Device, system and its installation method.
Background technology
On high ferro non-fragment orbit, the relative displacement that track plates bottom positive stop lug boss and surrounding structure can produce, therefore need
Continuous Observation carried out to non-fragment orbit service state, to provide measurement data for non-fragment orbit state estimation, to be improved with this no
Tiny fragments of stone, coal, etc. railway maintenance maintenance efficiency.
At present, when measuring, using displacement measuring device, the displacement occurring inside xoncrete structure, after concrete coagulation, very
Hardly possible changes the device of other measurement inside concrete displacements, therefore it is required that the life-span of measurement apparatus will be grown, be hardly damaged.
Content of the invention
The first object of the present invention is to provide a kind of device of measurement inside concrete displacement, its good seal performance, no
Fragile, long service life.
The second object of the present invention be provide a kind of measurement inside concrete displacement system, this system can quickly and
Continuously each displacement after measurement xoncrete structure interior change, high precision, are hardly damaged, long service life simultaneously.
The third object of the present invention is to provide a kind of installation method of the system of measurement inside concrete displacement, makes measurement
The system of inside concrete displacement can measure bidirectional displacement, the good leak tightness of the system of measurement inside concrete displacement simultaneously.
The present invention is realized in:
A kind of device of measurement inside concrete displacement, including housing, shell fragment, probe and sleeve pipe, shell fragment is arranged on housing
Inside, and the opposite end of shell fragment is fixing end and free end, fixing end is connected with housing, shell fragment include the first relative face and
, all there is gap in second face between the first face and housing and between the second face and housing, and the first face and the second face are provided with foil gauge,
Foil gauge near fixing end, housing position corresponding with free end be provided with internal diameter be more than sleeve pipe first through hole, probe with from
Connected by end and housing is stretched out by first through hole in one end of probe, sleeve pipe is movably set in probe.
Further, in preferred embodiments of the present invention, the length of sleeve pipe is less than the length of probe.
Further, in preferred embodiments of the present invention, sleeve pipe activity is embedded at first through hole, and the lateral wall of sleeve pipe
Contact with first through hole.
Further, in preferred embodiments of the present invention, foil gauge includes the first foil gauge and the second foil gauge, and first
On the first face, the second foil gauge is arranged on the second surface foil gauge, and the first foil gauge is parallel with the second foil gauge.
Further, in preferred embodiments of the present invention, foil gauge also includes the 3rd foil gauge and the 4th foil gauge, the
Three foil gauges arrange on the first face, and the 4th foil gauge arranges on the second surface, and the first foil gauge and the 3rd foil gauge are first
Position on the second surface is identical with the second foil gauge and the 4th foil gauge for position on face.
Further, in preferred embodiments of the present invention, housing offers the second through hole near the end of fixing end, the
Two through holes are connected with conduit.
Further, in preferred embodiments of the present invention, shell is provided with the first screw hole, and shell fragment is provided with the second screw
Hole, housing is connected with the second screw hole through the first screw hole with nut using screw with shell fragment;Second screw hole is near strain
Piece, and with foil gauge interval setting.
A kind of system of measurement inside concrete displacement is including the device of multiple above-mentioned measurement inside concrete displacements, many
The device of individual measurement inside concrete displacement is connected by conduit.
Further, in preferred embodiments of the present invention, the system of measurement inside concrete displacement also includes template, mould
Plate is abutted with probe.
A kind of installation method of the system of measurement inside concrete displacement, it includes:Measurement is placed in concrete pit
The device of inside concrete displacement, adjusts probe and sleeve pipe and exposes the one end away from shell fragment and the part tubular of probe, in shell
The outside casting concrete of body, with fixed shell, is placed template in probe away from one end of shell fragment, and makes template withstand probe,
Towards housing moving die plate, so that shell fragment elastic deformation is occurred and make probe have precompressed amount, adjust casing-contact template, remote in template
The side casting concrete of shrinking away from theshell body.
The invention has the beneficial effects as follows:The device of the measurement inside concrete displacement that the present invention is obtained by above-mentioned design,
Because the first face of shell fragment and the second face are provided with foil gauge, and probe is connected with the free end of shell fragment, when probe is with measurement knot
During structure displacement, shell fragment is made to bend, shell fragment two sides produces strain δ equal in magnitude, in opposite direction.Shift value is linear with δ
Relation, can measure shift value by foil gauge and data processing detection means.Due to using foil gauge as measurement master
Want instrument, the test speed of this device is fast, measurement result is accurate.Secondly, housing position corresponding with free end is provided with internal diameter
More than the first through hole of sleeve pipe, probe is connected with free end and housing, sleeve pipe activity are stretched out by first through hole in one end of probe
It is sheathed on probe, therefore sleeve pipe can not only ensure the sealing of housing, prevent concrete from entering into measurement inside concrete position
In the device moving, protect probe further, so that whole device is hardly damaged, service life extends.
The system of the measurement inside concrete displacement that the present invention provides includes above-mentioned multiple measurement inside concrete displacement
Device.The conduit of the device of multiple measurement inside concrete displacements connects and connects.By multiple measurement inside concrete displacements
Device detect multiple xoncrete structure internal displacements in different distance in same horizontal line simultaneously, take its meansigma methods,
The result obtaining is more accurate.
The installation method of the system of measurement inside concrete displacement that the present invention provides, withstands probe by making template, makes
Probe has certain precompressed amount, and shell fragment deforms upon, and makes casing-contact template simultaneously.When both sides concrete away from when, have certain
The probe of precompressed amount can move out;When both sides concrete is close, probe can internally move, therefore can measure two-way position
Move.The good leak tightness of the system of measurement inside concrete displacement obtaining is installed using the method simultaneously, measurement result is accurate.
Brief description
In order to be illustrated more clearly that the technical scheme of embodiment of the present invention, below will be to use required in embodiment
Accompanying drawing be briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, be therefore not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also root
Obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the schematic diagram of the device of measurement inside concrete displacement provided in an embodiment of the present invention;
Fig. 2 is that the device of measurement inside concrete displacement provided in an embodiment of the present invention removes the first visual angle after housing
Schematic diagram;
Fig. 3 is that the device the of measurement inside concrete displacement provided in an embodiment of the present invention removes the second visual angle after housing
Schematic diagram;
Fig. 4 is the schematic diagram under the device use state of measurement inside concrete displacement provided in an embodiment of the present invention;
Fig. 5 is the schematic diagram of the system of measurement inside concrete displacement provided in an embodiment of the present invention.
Icon:100- measures the device of inside concrete displacement;110- housing;111- first end;112- the second end;
120- shell fragment;120a- fixing end;120b- free end;121- first face;122- second face;130- foil gauge;131- first should
Become piece;132- second foil gauge;133- the 3rd foil gauge;134- the 4th foil gauge;150- wire;160- sleeve pipe;170- probe;
181- conduit;191- screw;192- nut;200- measures the system of inside concrete displacement;300- template.
Specific embodiment
Purpose, technical scheme and advantage for making embodiment of the present invention are clearer, implement below in conjunction with the present invention
Accompanying drawing in mode, is clearly and completely described the reality it is clear that described to the technical scheme in embodiment of the present invention
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of not making creative work, broadly falls into the present invention
The scope of protection.Therefore, below the detailed description of the embodiments of the present invention providing in the accompanying drawings being not intended to limit will
Seek the scope of the present invention of protection, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly falls into this
The scope of invention protection.
In describing the invention it is to be understood that term " middle part ", " length ", " width ", " on ", D score etc. refers to
The orientation showing or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification
Description, rather than indicate or imply that the equipment of indication or element must have specific orientation, with specific azimuth configuration and behaviour
Make, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " connection ", " fixation " should do broad sense reason
Solution is for example, it may be being fixedly connected or being detachably connected or integral;Can be to be mechanically connected or electricity
Connect;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals or two
The interaction relationship of element.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
The first and second feature directly contacts can be included not to be directly contact but passes through it is also possible to include the first and second features
Between other characterisation contact.And, fisrt feature second feature " on ", that " top " and " above " include first is special
Levy directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Present embodiments provide a kind of device 100 of measurement inside concrete displacement, as shown in figure 1, in measurement concrete
The device 100 of portion's displacement has housing 110.It should be noted that the shape of housing 110, size and material do not limit.In this enforcement
In example, in order to adapt to concrete inner structure, housing 110 is cuboid, is made from rustless steel.Housing 110 includes relative
First end 111 and the second end 112.
Specifically, be easy to describe in detail, Fig. 2-Fig. 5 be measurement inside concrete displacement device 100 remove housing 110 after
Structure, that is, measurement inside concrete displacement device 100 internal structure.As shown in Fig. 2 measurement inside concrete displacement
Device 100 also includes shell fragment 120.The opposite end of bullet is fixing end 120a and free end 120b.Shell fragment 120 is arranged on housing
Inside 110, and fixing end 120a of shell fragment 120 is connected with first end 111;Meanwhile, the free end 120b of shell fragment 120 is not with
Two ends 112 contact.Shell fragment 120 includes the first relative face 121 and the second face 122.Between first face 121 and housing 110 with
And second all have gap between face 122 and housing 110.It is to be understood that the both sides of shell fragment 120 are not contacted with housing 110.
First face 121 and the second face 122 are provided with foil gauge 130.Foil gauge 130 is near fixing end 120a, and and fixing end
120a interval setting.In the present embodiment, in order to increase certainty of measurement and convenient processing, foil gauge 130 is to be pasted onto shell fragment 120
On.Secondly, it should be noted that the thickness of shell fragment 120 is as far as possible little, the precision of so measurement displacement will improve relatively,
It is preferable that the thickness of shell fragment 120 is 1mm in the present embodiment.
Compared with the method for traditional measurement displacement, it is used foil gauge 130 to have advantages below as the main tool of measurement:
1st, sensitivity is high, and measuring speed is fast, and measurement result is accurate.2nd, it is easily achieved fully automated data acquisition in test process, many
Point synchro measure, telemeasurement and remote control detection, are particularly well-suited to the detection of concrete inner structure.3rd, foil gauge 130 is marked
Convenient away from little, stickup.4th, light weight.5th, applied widely, successfully can measure under the specific conditions such as high temperature, low temperature, high pressure, high speed
Survey.6th, easy to operate, method of testing is easy to grasp.
The device 100 of measurement inside concrete displacement also includes probe 170 and sleeve pipe 160, housing 110 and free end 120b
Corresponding position is provided with the first through hole (in figure is unmarked) that internal diameter is more than sleeve pipe 160, and probe 170 is connected with free end 120b
And housing 110 is stretched out by first through hole in one end of probe 170, sleeve pipe 160 is movably set in probe 170.It should be noted that
The internal diameter of first through hole does not limit it is preferable that sleeve pipe 160 activity is embedded at first through hole, and the lateral wall of sleeve pipe 160 leads to first
Hole contacts, and in other words, the internal diameter of first through hole is adapted with sleeve pipe 160, and sleeve pipe 160 is contacted with first through hole and can occur
Relative displacement.
Specifically, in the present embodiment, one end of sleeve pipe 160 is near the second face 122.Probe 170 passes through sleeve pipe 160, and
It is connected with the second face 122.In other words, sleeve pipe 160 can slide with respect to shell, and does not affect probe 170 activity.Set on shell
There is sleeve pipe 160, can ensure that the sealing of shell when pouring coagulation.It should be noted that in this embodiment, it is preferred that,
The hard material of the material selection light weight of sleeve pipe 160, sleeve pipe 160 does not affect probe 170 and normal displacement occurs, and makes the knot of measurement
Fruit is more accurate.Probe 170 can be further protected to be not damaged by secondly as there is sleeve pipe 160.
The operation principle of device 100 of measurement inside concrete displacement is:Because the first face 121 and the second face 122 are provided with
Foil gauge 130, when probe 170 is subjected to displacement with measurement structure, makes shell fragment 120 bend, and shell fragment 120 two sides produces big
Little strain δ equal, in opposite direction.Secondly, shift value is linear with δ, by foil gauge 130 and data processing detection dress
Put and can measure shift value.
Further, in the present embodiment, the length of sleeve pipe 160 is less than the length of probe 170.It should be noted that
In other embodiment, sleeve pipe 160 is not limited with the relative length of probe 170.
Refer to Fig. 2 and Fig. 3, in the present embodiment, foil gauge 130 includes the first foil gauge 131 and the second foil gauge
132, the first foil gauge 131 is arranged on the first face 121, and the second foil gauge 132 is arranged on the second face 122.Wherein, first answer
Change piece 131 is parallel with the second foil gauge 132, and the 3rd foil gauge 133 is parallel with the 4th foil gauge 134.Further, in order to increase
The precision of measurement, also includes the 3rd foil gauge 133 and the 4th foil gauge 134, the 3rd foil gauge 133 is arranged on the first face 121,
4th foil gauge 134 is arranged on the second face 122.First foil gauge 131, the second foil gauge 132, the 3rd foil gauge 133 and
Four foil gauges 134 are connected by wire 150, adopt " full-bridge connection ".Again, preferably but be not limited to this, the first foil gauge
131 and the 3rd position on the first face 121 for the foil gauge 133 with the second foil gauge 132 and the 4th foil gauge 134 in the second face
Position on 122 is identical.It should be noted that foil gauge 130 may also be employed strain rosette, the angle of its bonding can adopt 0 °, 45 °
Or 90 ° etc..
Referring again to Fig. 1 and Fig. 2, it is easy to arrange wire 150 and do not affect certainty of measurement, housing 110 is near fixing end
The end of 120a offers the second through hole (in figure is unmarked), and the second through hole is connected with conduit 181.Preferably, conduit 181 is at this
In embodiment, conduit 181 is " L " type, using pvc pipe.It is flat that the plane that the mouth of pipe of conduit 181 is located and the first face 121 are located
Face is vertical.Further, it is conveniently adjusted the mouth of pipe direction of conduit 181, conduit 181 can rotate with respect to housing 110.I.e. conduit
The position of 181 mouth of pipe direction does not limit.The mouth of pipe direction of conduit 181 can be adjusted according to the direction of actual measurement.
As depicted in figs. 1 and 2, shell is provided with the first screw hole (not shown), and shell fragment 120 is provided with the second screw hole, and (figure is not
Show), the position of the first screw hole is corresponding with the position of the second screw hole.I.e. housing 110 and shell fragment 120 can utilize screw 191
It is connected with the second screw hole through the first screw hole with nut 192.Housing 110 passes through screw 191 and nut 192 with shell fragment 120
Connection can increase stability between the two further.
For the free end 120b activity of without prejudice to shell fragment 120, the first screw hole and the second screw hole are near foil gauge
130, it does not contacted with foil gauge 130 with foil gauge 130 interval setting.It should be noted that the first screw hole and the second spiral shell
The quantity of nail does not limit.In the present embodiment, in order to increase the stability between housing 110 and shell fragment 120, the first screw hole with
The quantity of the second screw hole is all 2.Secondly, it is also with screw 191 to answer with the first foil gauge 131, second with nut 192
The wire 150 becoming piece 132, the 3rd foil gauge 133 and the 4th foil gauge 134 connection compresses, and prevents wire 150 from coming off and affects to survey
The stability of the device 100 of amount inside concrete displacement.
Refer to Fig. 5, the embodiment of the present invention additionally provides a kind of system 200 of measurement inside concrete displacement.Measurement is mixed
The system 200 of solidifying soil internal displacement includes the device 100 of above-mentioned multiple measurement inside concrete displacement.In multiple measurement concrete
The conduit 181 of the device 100 of portion's displacement connects and connects.Examined by the device 100 of multiple measurement inside concrete displacements simultaneously
Survey in the same horizontal line, multiple xoncrete structure internal displacements of different distance, take its meansigma methods, the result obtaining is more accurate
Really.
The present embodiment additionally provides a kind of installation method of the system 200 of measurement inside concrete displacement, in conjunction with Fig. 1, Fig. 2
With shown in Fig. 4.
The first step, opens up groove to place the device 100 of measurement inside concrete displacement, places measurement mixed in concrete
After the device 100 of solidifying soil internal displacement, conduit 181 is extended to outside concrete, to draw the wire 150 within housing 110.
Second step, protects probe 170, exposes probe 170 away from the outer end of shell fragment 120 and part tubular 160, in shell
Outside body 110 can leading casting concrete, with fix measurement inside concrete displacement device 100.
3rd step, places template 300 in probe 170 away from one end of shell fragment 120, and is fixed with probe 170 outer end
Template 300, template 300 can be selected for cystosepiment, rubber blanket, plank etc..It should be noted that in order to measure bidirectional displacement, first
Need to make template 300 withstand probe 170, that is, towards housing 110 moving die plate 300, make probe 170 have certain precompressed amount, and make
There is elastic deformation in shell fragment 120, so as to contact template 300, probe 170 and the external world do not have gap, that is, to adjustment sleeve pipe 160 simultaneously
Ensure that the sealing of housing 110.
It should be noted that the principle of measurement bidirectional displacement is:Because probe 170 has certain precompressed amount, namely shell fragment
120 there occurs deformation (position as shown in Figure 4), when both sides concrete away from when, the probe 170 having certain precompressed amount can be outside
Motion;When both sides concrete is close, probe 170 can internally move, therefore can measure bidirectional displacement.
4th step, in template 300 away from the side casting concrete of housing 110, completes to install.
5th step, debugs each equipment, you can continuous collecting inside concrete displacement.It should be noted that in debugging process
In it is necessary first to relation between calibration strain piece 130 and shell fragment 120, make both become the linear relationship of a determination.
To sum up, the device 100 of the measurement inside concrete displacement that the present invention provides, being capable of continuous collecting inside concrete position
Move, measurement inside concrete displacement simultaneously device 100 test speed is fast, measurement result accurately, long service life and not rapid wear
Bad.Secondly as sleeve pipe 160 is actively embedded on shell, probe 170 passes through sleeve pipe 160.Therefore sleeve pipe 160 ensure that
The sealing of shell, prevents concrete from entering in the device 100 of measurement inside concrete displacement, and sleeve pipe 160 can prevent
Originally probe 170 stress is excessive, bending occurs or is damaged by other, further enable probe 170 normal work, makes whole
The working time of the device 100 of measurement inside concrete displacement is elongated.
The system 200 of measurement inside concrete displacement can detect many in different distance in same horizontal line simultaneously
Individual xoncrete structure internal displacement, takes its meansigma methods, and the result obtaining is more accurate.
The installation method of the system 200 of measurement inside concrete displacement, withstands probe 170 by making template 300, makes probe
170 have certain precompressed amount, and shell fragment 120 deforms upon, and make sleeve pipe 160 contact template 300 simultaneously.Make measurement inside concrete position
The system 200 moved can measure bidirectional displacement, the good leak tightness of the system 200 of measurement inside concrete displacement simultaneously.
The foregoing is only the preferred embodiment of the present invention, be not limited to the present invention, for this area
For technical staff, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any
Modification, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of device of measurement inside concrete displacement is it is characterised in that include housing, shell fragment, probe and sleeve pipe, described bullet
Piece is arranged on described enclosure interior, and the opposite end of described shell fragment is fixing end and free end, described fixing end and described shell
Body connects, and described shell fragment includes the first relative face and the second face, between described first face and described housing and described second
All there is gap, described first face and described second face are provided with foil gauge, and described foil gauge is near described between face and described housing
Fixing end, described housing position corresponding with described free end is provided with the first through hole that internal diameter is more than described sleeve pipe, described spy
Pin is connected with described free end and described housing, described sleeve pipe movable sleeve are stretched out by described first through hole in one end of described probe
Located at described probe.
2. a kind of device of measurement inside concrete displacement according to claim 1 is it is characterised in that the length of described sleeve pipe
Degree is less than the length of described probe.
3. a kind of device of measurement inside concrete displacement according to claim 1 is it is characterised in that described sleeve pipe activity
It is embedded at described first through hole, and the lateral wall of described sleeve pipe is contacted with described first through hole.
4. a kind of device of measurement inside concrete displacement according to claim 1 is it is characterised in that described foil gauge bag
Include the first foil gauge and the second foil gauge, on described first face, described second foil gauge is arranged on institute to described first foil gauge
State on the second face, and described first foil gauge is parallel with described second foil gauge.
5. according to claim 4 a kind of measurement inside concrete displacement device it is characterised in that described foil gauge also
Including the 3rd foil gauge and the 4th foil gauge, described 3rd foil gauge is arranged on described first face, and described 4th foil gauge sets
Put on described second face, the described first foil gauge and described 3rd foil gauge position and described second on described first face
The position on described second face is identical with described 4th foil gauge for foil gauge.
6. a kind of device of measurement inside concrete displacement according to claim 1 is it is characterised in that described housing is close
The end of described fixing end offers the second through hole, and described second through hole is connected with conduit.
7. a kind of device of measurement inside concrete displacement according to claim 1 is it is characterised in that described housing is provided with
First screw hole, described shell fragment is provided with the second screw hole, and described housing and described shell fragment utilize screw and nut to pass through described the
One screw hole is connected with described second screw hole;Described second screw hole is near described foil gauge, and is spaced with described foil gauge
Setting.
8. a kind of system of measurement inside concrete displacement is it is characterised in that include the measurement coagulation described in multiple claim 6
The device of native internal displacement, the device of multiple described measurement inside concrete displacements is connected by described conduit.
9. the system of measurement inside concrete displacement according to claim 8 is it is characterised in that in described measurement concrete
The system of portion's displacement also includes template, and described template is abutted with described probe.
10. a kind of as claimed in claim 9 measurement inside concrete displacement system installation method it is characterised in that its
Including:Place the device of described measurement inside concrete displacement in concrete pit, the described probe of adjustment and described sleeve pipe are simultaneously
Expose the one end away from described shell fragment and the part described sleeve pipe of described probe, described housing outside casting concrete with solid
Fixed described housing, places described template in described probe away from one end of described shell fragment, and makes described template withstand described spy
Pin, moves described template towards described housing, so that described shell fragment elastic deformation is occurred and make described probe have precompressed amount, adjustment is described
Template described in casing-contact, described template away from described housing side casting concrete.
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