CN206459613U - Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system - Google Patents
Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system Download PDFInfo
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- CN206459613U CN206459613U CN201720082629.4U CN201720082629U CN206459613U CN 206459613 U CN206459613 U CN 206459613U CN 201720082629 U CN201720082629 U CN 201720082629U CN 206459613 U CN206459613 U CN 206459613U
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- guide rod
- soft rock
- hole wall
- measuring instrument
- electrical measuring
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Abstract
A kind of soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system, belongs to ground measuring apparatus field.The soft rock hole wall deformation electrical measuring instrument includes guide rod and data collecting instrument, and the two ends of guide rod are respectively equipped with fixing device and measurement apparatus；Fixing device includes at least two telescopic fix bars along guide rod circumferentially；Measurement apparatus includes at least two first spring leafs along guide rod circumferentially, and with the one-to-one LVDT displacement meters of the first spring leaf, and one end of each first spring leaf is connected with guide rod, the two ends of LVDT displacement meters are connected with guide rod and corresponding first spring leaf respectively, and each LVDT displacement meters are electrically connected with data collecting instrument.The soft rock hole wall distortion measurement instrument can accurately measure the deflection of hole wall in the case where soft rock softening transform does not occur local collapse hole.The utility model additionally provides a kind of soft rock distortion measurement system.
Description
Technical field
The utility model is related to ground measuring apparatus field, in particular to a kind of soft rock hole wall deformation electrical measuring instrument and
Soft rock distortion measurement system.
Background technology
Soft Rock Body is frequently encountered during underground engineering construction, low intensity, deformation are big, it is soft to meet water because soft rock has
Change the underground engineering construction under the features such as serious and rheological effect is notable, soft rock environment easily to meet with timeliness large deformation or even collapse
The engineering problems such as side, the easily stability to underground engineering is caused a significant threat, in order to improve the security of underground engineering construction,
Avoid producing potential safety hazard, it is necessary to which underground engineering is enclosed under the accurate mechanical characteristics for grasping engineering of surrounding rock, therefore development soft rock environment
The accurate measurements of rock deformation are significant for the stability for ensuring underground engineering.
More reliable method is to carry out field monitoring to engineering surrounding rock using ground measuring apparatus in current engineering, especially
It is that deformation monitoring is carried out to country rock using ground deformation detection equipment, then engineering of surrounding rock mechanical characteristics is carried out on this basis
Back analysis.But rock deformation measuring apparatus mostly can not be measured accurately soft rock deformation quantity well, this be by
There is the characteristics of deformation is big, chance water softening is serious in soft rock, soft rock easily forms certain thickness after meeting water softening on rock mass surface
Soft layer is expanded, the intensity and deformation modulus of the soft layer of the expansion are all very low, existing soft rock distortion measurement equipment is in measurement
It is easy to be embedded into the soft layer of the expansion, it is impossible to accurately measure the deflection of soft rock deep hole hole wall；Simultaneously as ground should
The influence of the factor such as power and supporting measure, soft rock medium-length hole hole wall might not axisymmetric deformation occur along aperture, and show
It is only to measure the relative deformation of a certain radially hole wall to have soft rock distortion measurement equipment, can not also realize that different radial direction hole walls become
The independent measurement of shape, it is difficult to the need for meeting use.
Accordingly, it would be desirable to a kind of measuring apparatus for the different depth and radial direction deformation that can accurately measure soft rock borehole wall.
Utility model content
The purpose of this utility model is to provide a kind of soft rock hole wall deformation electrical measuring instrument, its can in soft rock softening transform and
In the case of not occurring local collapse hole, the deflection of the hole wall of accurate measurement different depth and radial direction.
Another object of the present utility model is to provide a kind of soft rock distortion measurement system, and the system can be measured quickly
The deflection of soft rock hole wall is simultaneously calculated automatically from data by computer.
What embodiment of the present utility model was realized in：
A kind of soft rock hole wall deformation electrical measuring instrument, it includes guide rod and data collecting instrument, and the two ends of guide rod are respectively equipped with
Fixing device and measurement apparatus；Wherein, fixing device includes at least two telescopic fix bars along guide rod circumferentially；
Measurement apparatus includes at least two first spring leafs along guide rod circumferentially, and with the one-to-one LVDT of the first spring leaf
Displacement meter, one end of each first spring leaf is connected with guide rod, the two ends of each LVDT displacement meters respectively with guide rod and right
The the first spring leaf connection answered, each LVDT displacement meters are electrically connected with data collecting instrument.
In the utility model preferred embodiment, the first spring leaf is shaped as arc, and each first spring leaf is recessed
Sunken side towards guide rod, the two ends of each LVDT displacement meters be recessed respectively with guide rod and corresponding first spring leaf one
Side is connected.
In the utility model preferred embodiment, measurement apparatus also includes the first sleeve, and first set jacket casing is located at guiding
Can move on bar and along guide rod, one end of each first spring leaf with the first sleeve connection.
In the utility model preferred embodiment, fixing device includes second sleeve, and second sleeve is sheathed on guide rod
It is upper and can along guide rod axial movement, each fix bar is connected with second sleeve.
At least one positioner, Mei Geding are additionally provided with the utility model preferred embodiment, in the middle part of guide rod
Position device includes at least two second spring pieces along guide rod circumferentially, and one end and the guide rod of each second spring piece connect
Connect.
In the utility model preferred embodiment, positioner also includes 3rd sleeve, and 3rd sleeve is sheathed on guiding
On bar and can along guide rod axial movement, one end of each second spring piece is connected with corresponding 3rd sleeve.
In the utility model preferred embodiment, fix bar includes the body of rod and the nut that can be moved axially along the body of rod.
In the utility model preferred embodiment, guide rod is made up of many quarter butts being detachably connected.
In the utility model preferred embodiment, scale is carved with the surface of guide rod.
The utility model additionally provides a kind of soft rock distortion measurement system, and it includes above-mentioned soft rock hole wall deformation electrical measurement
Instrument, and the computer being connected with soft rock hole wall deformation electrical measuring instrument.
The beneficial effect of the utility model embodiment is：The soft rock hole wall deformation electrical measuring instrument that the utility model is provided is being oriented to
The two ends of bar are respectively equipped with fixing device and measurement apparatus, and fixing device includes along guide rod at least two can stretch circumferentially
The fix bar of contracting；Measurement apparatus includes at least two first spring leafs along guide rod circumferentially, and with the first spring leaf pair
The LVDT displacement meters answered, one end of each first spring leaf is connected with guide rod, and the two ends of each LVDT displacement meters are respectively with leading
Connected to bar and corresponding first spring leaf, each LVDT displacement meter is electrically connected with data collecting instrument.The soft rock hole wall deformation
Measuring instrument is simple in construction, dismounts, carries and easy to use, can be in the case where soft rock softening transform does not occur local collapse hole
Accurately measure its deflection.The utility model additionally provides a kind of soft rock distortion measurement system, and the system can measure soft rock hole
Data are calculated automatically from by computer after the deflection of wall.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation for the soft rock hole wall deformation electrical measuring instrument that the utility model embodiment 1 is provided；
Fig. 2 is the sectional view at A-A in Fig. 1；
Fig. 3 is the sectional view at B-B in Fig. 1；
Fig. 4 is the structural representation for the soft rock distortion measurement system that the utility model embodiment 2 is provided；
Fig. 5 is the sectional view at C-C in Fig. 4；
Fig. 6 is the sectional view at D-D in Fig. 4.
In figure：001- soft rock hole wall deformation electrical measuring instruments；002- soft rock hole wall distortion measurement systems；100- guide rods；110-
Quarter butt；120- scales；200- fixing devices；210- fix bars；The 211- bodies of rod；212- nuts；220- second sleeves；300- is measured
Device；The spring leafs of 310- first；320-LVDT displacement meters；The sleeves of 330- first；400- data collecting instruments；500- positioners；
510- second spring pieces；520- 3rd sleeves；600- computers.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation, the orientation or position relationship of the instruction such as term " interior ", " outer " in description of the present utility model
For based on orientation shown in the drawings or position relationship, or the orientation or position that the utility model product is usually put when using
Relation, is for only for ease of description the utility model and simplifies description, rather than indicate or imply that the device or element of meaning must
There must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.This
Outside, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Embodiment 1
It refer to shown in Fig. 1, Fig. 2 and Fig. 3, the present embodiment provides a kind of soft rock hole wall deformation electrical measuring instrument 001, and it includes leading
To bar 100 and data collecting instrument 400, the two ends of guide rod 100 are respectively equipped with fixing device 200 and measurement apparatus 300.Wherein,
Fixing device 200 includes at least two telescopic fix bars 210 along guide rod 100 circumferentially；Measurement apparatus 300 includes
It is one-to-one LVDT along at least two first spring leafs 310 of guide rod 100 circumferentially, and with the first spring leaf 310
Meter 320 is moved, and one end of each first spring leaf 310 is connected with guide rod 100, the two ends of LVDT displacement meters 320 are respectively with leading
Connected to bar 100 and corresponding first spring leaf 310, each LVDT displacement meters 320 are electrically connected with data collecting instrument 400.Tool
Body, fixing device 200 includes four telescopic fix bars 210 along guide rod 100 circumferentially, four in the present embodiment
One end of fix bar 210 is connected with guide rod 100 and four fix bars 210 are arranged in cross, and measurement apparatus 300 includes edge
Four the first spring leafs 310 circumferentially of guide rod 100 and with the one-to-one four LVDT displacement meters of the first spring leaf 310
320, and four the first spring leafs 310 are corresponding with four fix bars 210 in cross arrangement.
The soft rock hole wall deformation electrical measuring instrument 001 that the present embodiment is provided part can not occur in soft rock hole wall softening transform
Its deflection is accurately measured in the case of collapse hole.The soft rock hole wall deformation electrical measuring instrument 001 includes being inserted into the brill opened up on soft rock
Guide rod 100 in hole, one end that guide rod 100 is inserted into drilling is provided with the measurement apparatus for being used for detecting hole wall deflection
300, the other end of guide rod 100 is provided with the fixing device 200 being made up of four fix bars 210, by adjusting four along guiding
The length of the telescopic fix bar 210 of bar 100 circumferentially, can be directed to ensure guide rod 100 while bar 100 is fixed
One end and drilling coaxial line arrangement, measurement apparatus 300 includes four the first spring leafs 310 along guide rod 100 circumferentially
And with the one-to-one four LVDT displacement meters 320 of the first spring leaf 310, measure hole wall using four LVDT displacement meters 320
Deflection, and the two ends of LVDT displacement meters 320 connect with guide rod 100 and corresponding first spring leaf 310 respectively, LVDT displacements
Meter 320 can accurately perceive the displacement of the soft layer of expansion of soft rock surface by preferable first spring leaf 310 of elastic performance,
It ensure that the accuracy detected to soft rock deep hole hole wall deformation amount.
The shape of the first spring leaf 310 in the present embodiment is not limited, as long as can guarantee that soft rock hole wall deformation electrical measuring instrument 001 is inserted
When entering in the deep hole opened up onto soft rock, the first spring leaf 310 is mutually compressed with borehole wall.Further, the first bullet
Reed 310 is preferably shaped to arc, and the side that each first spring leaf 310 is recessed is arranged towards guide rod 100, each LVDT
The side that the two ends of displacement meter 320 are recessed with guide rod 100 and corresponding first spring leaf 310 respectively is connected.When soft rock hole wall
When deformation electrical measuring instrument 001 is inserted into the deep hole opened up on soft rock, each projection of first spring leaf 310 in measurement apparatus 300
Side compresses borehole wall, and first can be passed through with the LVDT displacement meters 320 of corresponding first spring leaf 310 depression side connection
The displacement that spring leaf 310 is produced accurately senses the deflection of borehole wall, while the raised surface of the first spring leaf 310 has
Larger surface area, will not also be embedded into the soft layer of expansion of soft rock inwall, it is to avoid general side face equipment is embedding when in use
Enter into the soft layer of expansion of soft rock inwall to produce measurement error.
As shown in figure 1, measurement apparatus 300 also includes being sheathed on can move on guide rod 100 and along guide rod 100 first
Sleeve 330, one end of each first spring leaf 310 is connected with the first sleeve 330.Specifically, in the present embodiment, four first
One end of spring leaf 310 is connected with the first sleeve 330.By being arranged can move along its axis first on guide rod 100
Sleeve 330, one end of each first spring leaf 310 is connected with the first sleeve 330, the bullet of regulation first that user can be synchronous
The axial movement of reed 310 and LVDT displacement meters 320 along guide rod 100, so as to adjust measurement apparatus 300 along guide rod 100
Axial movement, so as to ensure to adapt to the detection operation of the deflection of different depth hole wall.
As shown in Fig. 2 fixing device 200 also includes second sleeve 220, second sleeve 220 is sheathed on guide rod 100 simultaneously
Can along guide rod 100 axial movement, each fix bar 210 is connected with second sleeve 220.It is arranged with guide rod 100
The second sleeve 220 that can be moved along its axis, each fix bar 210 is connected with second sleeve 220, being capable of convenient use person's tune
The orientation of fix bar 210 is saved, so as to when ensureing that being directed to bar 100 fixes, make guide rod 100 coaxially arranged with drilling, it is ensured that to survey
Measure the measurement accuracy of device 300.
Fix bar 210 includes the body of rod 211 and the nut 212 that can be moved axially along the body of rod 211.Specifically, the table of the body of rod 211
Face is provided with external screw thread, and the one end of the body of rod 211 away from guide rod 100 is arranged with nut 212, and the inwall of nut 212 is provided with corresponding
Internal thread.By rotary nut 212, it is capable of the relative position of regulating nut 212 and the body of rod 211, so as to adjust fix bar 210
Length, user can by adjust the length of each fix bar 210 be directed to bar 100 be fixed on drilling in, and ensure be oriented to
Bar 100 is coaxially arranged with drilling, so as to improve measurement accuracy of the measurement apparatus 300 to borehole wall deflection.
Guide rod 100 is made up of many quarter butts 110 being detachably connected.Specifically, in the present embodiment, guide rod 100 by
Four quarter butts 110 are sequentially connected composition by screw thread.It is adapted to using the dismountable composition of quarter butt 110 guide rod 100 of more piece
The deformation measurement operation of the borehole wall of different depth, also can conveniently be transported while being directed to bar 100 and being disassembled into many quarter butts 110
With the operation in small space.
It is carved with scale 120 in the surface of guide rod 100.Scale 120 is carved with the surface of guide rod 100, being capable of convenient use person
The depth of the insertion drilling of guide rod 100 is checked, convenient use person adjusts guide rod 100 to the deformation at drill hole inner wall different depth
Amount is measured.
As shown in figure 3, the middle part of guide rod 100 is additionally provided with least one positioner 500, each positioner 500 is wrapped
Include at least two second spring pieces 510 circumferentially along guide rod 100, one end of each second spring piece 510 with guiding
Bar 100 is connected.Specifically, in the present embodiment, the middle part of guide rod 100 is additionally provided with a positioner 500, positioner 500
Including circumferentially four second spring pieces 510 along guide rod 100, four second spring pieces 510 and four fix bars 210
It is corresponding to be arranged in cross.By setting the four second spring pieces 510 arranged in cross at the middle part of guide rod 100,
And one end of four second spring pieces 510 is connected with guide rod 100, can adjust the position of guide rod 100, it is ensured that guide rod
100 middle part is overlapped with borehole axial, is cooperated between four second spring pieces 510 and four fix bars 210, can be entered one
The measurement accuracy for ensuring that guide rod 100 is overlapped with borehole axial, maximizing raising measurement apparatus 300 of step.
Second spring piece 510 is shaped as arc, and side that each second spring piece 510 is recessed is towards the cloth of guide rod 100
Put.The side that the second spring piece 510 of arc is recessed towards guide rod 100 arrange when, soft rock hole wall deformation electrical measuring instrument 001 is inserted
When in the deep hole opened up on to soft rock, the raised side of each second spring piece 510 compresses borehole wall, due to the second of arc
Spring leaf 510 has larger surface area, can avoid being embedded into the soft layer of expansion of soft rock inwall, so as to ensure guide rod
Stablize relatively between 100 middle part and borehole wall, guide rod 100 is kept coaxially arranged with drilling, improve measurement dress
Put the measurement accuracy during shape changing detection of 300 pairs of drill hole inner wall each radial directions.
Positioner 500 also includes 3rd sleeve 520, and 3rd sleeve 520 is sheathed on guide rod 100 and can be along guide rod
100 axial movements, one end of each second spring piece 510 is connected with corresponding 3rd sleeve 520.Positioner 500 includes
The second sleeve 220 that can be moved axially along guide rod 100 and four second spring pieces 510 being connected with 3rd sleeve 520, can
The position of convenient use person's regulating positioning device 500, so as to adapt to the inwall of different depth soft rock drilling, makes positioner 500
Preferably the middle part of guide rod 100 can be positioned, it is ensured that the accuracy of detection of measurement apparatus 300.
The present embodiment additionally provides a kind of soft rock distortion measurement method, and it is to use above-mentioned soft rock hole wall deformation electrical measuring instrument
001 progress, this method comprises the following steps：
Quarter butt 110, is sequentially connected and obtains guide rod 100 by S1, the drilling on soft rock to be measured according to the depth of drilling,
Positioner 500 is sheathed on guide rod 100 and 3rd sleeve 520 is moved along guide rod 100, it is ensured that positioner 500
In behind the middle part of guide rod 100, assembling fixing device 200 and measurement apparatus 300 respectively at the two ends of guide rod 100, and by number
Pass through cable connection according to each LVDT displacement meter 320 in Acquisition Instrument 400 and measurement apparatus 300.
S2, it is directed to bar 100 and is equipped with one end of measurement apparatus 300 insertion soft rock in the drilling that opens up, it is ensured that measurement
The raised side of each first spring leaf 310 compresses drill hole inner wall in device 300, and makes each second bullet in positioner 500
The raised side of reed 510 compresses drill hole inner wall, determines that measurement apparatus 300 is extend into by the scale 120 on the surface of guide rod 100
Target depth in drilling.
S3, fixing device 200 is sheathed on guide rod 100 and second sleeve 220 is moved along guide rod 100, then adjusted
The length of four fix bars 210 of section is directed to bar 100 and is fixed in drilling, makes guide rod 100 coaxially arranged with drilling.
S4, Usage data collection instrument 400 collect the data of each LVDT displacement meter 320 collection, calculate the change for obtaining hole wall
Shape amount.
Depth in S5, rotary steering bar 100 or the regulation insertion drilling of guide rod 100, Usage data collection instrument 400 enters one
Step collects the data of each LVDT displacement meter 320 collection, calculates the deflection for the hole wall for obtaining different depth or different radial directions.
The soft rock distortion measurement method that the present embodiment is provided, fixation is provided in one end and middle part of guide rod 100 and is led
To the fixing device 200 and positioner 500 of bar 100, and make guide rod 100 coaxially arranged with drilling, it is possible to increase to drilling
The accuracy of measurement of hole wall difference radial-deformation, reduces the error detected to different radial direction hole wall deflections；While guide rod
The measurement apparatus 300 set on 100 one-to-one arc using four LVDT displacement meters 320 arranged in cross and therewith
The first spring leaf 310, detect the hole wall for producing deformation to the compressional deformation of the first spring leaf 310 by LVDT displacement meters 320
The deflection of hole wall is determined, measuring apparatus can be avoided, which to be embedded in the soft layer of expansion of soft rock surface, influences measurement accuracy, it is ensured that
The accuracy detected to soft rock deep hole hole wall deformation amount.The soft rock distortion measurement method is adapted to soft rock drilling middle hole wall deformation
It is not that the situation of especially severe is detected, such as soft rock softening transform only occurs and do not occur the situation of local collapse hole.
Embodiment 2
As shown in Figure 4, Figure 5 and Figure 6, the present embodiment provides a kind of soft rock hole wall distortion measurement system 002, and it includes being oriented to
Bar 100, the two ends of guide rod 100 are respectively equipped with fixing device 200 and measurement apparatus 300, and measurement apparatus 300 is connected with data and adopted
Collect instrument 400, data collecting instrument 400 is connected with computer 600；Guide rod 100 is detachably connected by many quarter butts 110 and constituted, and is oriented to
It is carved with scale 120 in the surface of bar 100.
Wherein, fixing device 200 includes being sheathed on the second sleeve 220 that on guide rod 100 and can be moved along its axis, and
Three telescopic fix bars 210 being connected with second sleeve 220, three fix bars 210 along guide rod 100 circumferentially；Gu
Fixed pole 210 includes the body of rod 211 and nut 212, and the surface of the body of rod 211 is provided with external screw thread, the body of rod 211 away from guide rod 100 one
End is arranged with nut 212, and the inwall of nut 212 is provided with corresponding internal thread.
Measurement apparatus 300 includes being sheathed on the first sleeve 330 that can move on guide rod 100 and along guide rod 100 along leading
To three the first spring leafs 310 of bar 100 circumferentially, and with the one-to-one LVDT displacement meters 320 of the first spring leaf 310,
One end of each first spring leaf 310 is connected with the first sleeve 330, the two ends of LVDT displacement meters 320 respectively with guide rod 100
Connected with corresponding first spring leaf 310, each LVDT displacement meters 320 are electrically connected with data collecting instrument 400.
The middle part of guide rod 100 is additionally provided with two positioners 500, and each positioner 500 includes being sheathed on guiding
On bar 100 and the 3rd sleeve 520 that can move along its axis, and three second spring pieces along guide rod 100 circumferentially
510, one end of each second spring piece 510 is connected with corresponding 3rd sleeve 520.
The shape of first spring leaf 310 and second spring piece 510 is arc.First spring leaf 310 and second spring piece
The side of 510 depressions is towards guide rod 100.
The soft rock hole wall distortion measurement system 002 that the present embodiment is provided is arranged with two positioners on guide rod 100
500, two positioners 500 include the 3rd sleeve 520 that can be moved axially along guide rod 100, and circumferential along guide rod 100
Three second spring pieces 510 of arrangement, the depression side of the second spring piece 510 of three arcs is towards guide rod 100, and two fixed
Coordinate in second spring piece 510 and fixing device 200 in the device 500 of position along the fix bar 210 of guide rod 100 circumferentially,
It ensure that guide rod 100 is stable to be fixed in the drilling opened up on soft rock, and guide rod 100 is being extend into deeper brill
Also can guarantee that when in hole with drill it is coaxially arranged so that it is different for drilling to improve the soft rock hole wall distortion measurement system 002
The hole wall deformation of radial direction measures fixed accuracy, measurement error is reduced, while using the real-time reception data collecting instrument of computer 600
400 data obtained from each LVDT displacement meter 320 are simultaneously calculated, and are capable of the deformation data of quick obtaining soft rock hole wall.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of soft rock hole wall deformation electrical measuring instrument, it is characterised in that it includes guide rod and data collecting instrument, the guide rod
Two ends are respectively equipped with fixing device and measurement apparatus；Wherein, the fixing device is included along the guide rod circumferentially extremely
Few two telescopic fix bars；The measurement apparatus includes at least two first springs along the guide rod circumferentially
Piece, and with the one-to-one LVDT displacement meters of first spring leaf, one end of each first spring leaf is oriented to described
Bar is connected, and the two ends of each LVDT displacement meters are connected with the guide rod and corresponding first spring leaf respectively, often
The individual LVDT displacement meters are electrically connected with the data collecting instrument.
2. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that first spring leaf is shaped as
Arc, and the side that each first spring leaf is recessed, towards the guide rod, the two ends of each LVDT displacement meters are divided
Side not with the guide rod and the corresponding first spring leaf depression is connected.
3. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that the measurement apparatus also includes first
Sleeve, the first set jacket casing is on the guide rod and can be moved along the guide rod, each first spring leaf it is described
One end with first sleeve connection.
4. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that the fixing device includes second set
Cylinder, the second sleeve be sheathed on the guide rod and can along the guide rod axial movement, each the fix bar is equal
It is connected with the second sleeve.
5. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that be additionally provided with the middle part of the guide rod
At least one positioner, each positioner includes at least two second springs along the guide rod circumferentially
Piece, one end of each second spring piece is connected with the guide rod.
6. soft rock hole wall deformation electrical measuring instrument according to claim 5, it is characterised in that the positioner also includes the 3rd
Sleeve, the 3rd sleeve be sheathed on the guide rod and can along the guide rod axial movement, each second bullet
One end of reed is connected with the corresponding 3rd sleeve.
7. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that the fix bar includes the body of rod and can
The nut moved axially along the body of rod.
8. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that the guide rod is by being detachably connected
Many quarter butts composition.
9. soft rock hole wall deformation electrical measuring instrument according to claim 1, it is characterised in that be carved with mark in the surface of the guide rod
Chi.
10. a kind of soft rock distortion measurement system, it is characterised in that it includes soft rock as claimed in any one of claims 1-9 wherein
Hole wall deformation electrical measuring instrument, and the computer being connected with the soft rock hole wall deformation electrical measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720082629.4U CN206459613U (en) | 2017-01-22 | 2017-01-22 | Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720082629.4U CN206459613U (en) | 2017-01-22 | 2017-01-22 | Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system |
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| Publication Number | Publication Date |
|---|---|
| CN206459613U true CN206459613U (en) | 2017-09-01 |
Family
ID=59698914
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720082629.4U Expired - Fee Related CN206459613U (en) | 2017-01-22 | 2017-01-22 | Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement system |
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| CN (1) | CN206459613U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036523A (en) * | 2017-01-22 | 2017-08-11 | 中国科学院武汉岩土力学研究所 | Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement method |
| CN115962719A (en) * | 2023-03-16 | 2023-04-14 | 安格利(成都)仪器设备有限公司 | Measuring instrument |
-
2017
- 2017-01-22 CN CN201720082629.4U patent/CN206459613U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036523A (en) * | 2017-01-22 | 2017-08-11 | 中国科学院武汉岩土力学研究所 | Soft rock hole wall deformation electrical measuring instrument and soft rock distortion measurement method |
| CN107036523B (en) * | 2017-01-22 | 2020-06-30 | 中国科学院武汉岩土力学研究所 | Soft rock hole wall deformation electrical measuring instrument and soft rock deformation measuring method |
| CN115962719A (en) * | 2023-03-16 | 2023-04-14 | 安格利(成都)仪器设备有限公司 | Measuring instrument |
| CN115962719B (en) * | 2023-03-16 | 2023-06-13 | 安格利(成都)仪器设备有限公司 | Measuring instrument |
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