CN107478368A - Rock mass engineering project the ground stress gauge and stress mornitoring system - Google Patents
Rock mass engineering project the ground stress gauge and stress mornitoring system Download PDFInfo
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- CN107478368A CN107478368A CN201710882254.4A CN201710882254A CN107478368A CN 107478368 A CN107478368 A CN 107478368A CN 201710882254 A CN201710882254 A CN 201710882254A CN 107478368 A CN107478368 A CN 107478368A
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- rock mass
- engineering project
- mass engineering
- ground stress
- stress gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to testing equipment field, more particularly to a kind of rock mass engineering project the ground stress gauge and stress mornitoring system, rock mass engineering project the ground stress gauge includes shell structure, power supply, four groups of ring type sensors, processor and memory, shell structure includes head, hollow shell and afterbody, hollow shell is connected between head and afterbody, hollow shell interior is provided with along central axis and is provided with lock bolt, spacer sleeve is located at lock bolt to four groups of ring type sensors successively, induction contact is respectively arranged with each ring type sensor, housing hollow shell and the corresponding position of each induction contact are provided with the through hole to match with induction contact, each ring type sensor detects the change in displacement of rock mass and produces displacement signal and send to processor respectively, processor obtains multiple stress values according to each shifting signal in position and sent to memory, to be stored.The volume and weight of rock mass engineering project the ground stress gauge is effectively reduced by above-mentioned setting, and makes stress mornitoring more convenient and efficient.
Description
Technical field
The present invention relates to detection device technical field, is examined in particular to a kind of rock mass engineering project the ground stress gauge and stress
Examining system.
Background technology
Crustal stress is a kind of stress of the preservation in rock mass, and it is not only the main of geological environment and crustal stability assessment
Factor, and one of Geological Engineering design and the capsule information of construction.Most widely used method for measuring stress in engineering at present
It is hydraulic fracturing and stress relief by overcoring.Due to hydraulic fracturing is present must a potentially master of stress tensor in advance
The direction limitation consistent with borehole axial, therefore, stress relief by overcoring are considered as to obtain sky because of its reliability and stability
Between triaxiality hypothesis testing method.
Inventor it has been investigated that, the existing stress deformation meter using stress relief by overcoring DATA REASONING at the scene
When, it is necessary to by cable access stress deformation meter afterbody, passed by drilling tool, to access monitoring device, this not only adds be
The volume and weight of system, return site operation and cause very big inconvenience, when especially measurement hole depth is increased, access cable is just
Devote a tremendous amount of time, and the length of cable and weight also constrain the depth of measurement.Therefore stress deformation is effectively mitigated
The volume and weight of meter, and make stress mornitoring more convenient and efficient be technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, it is an object of the invention to provide a kind of rock mass engineering project the ground stress gauge and stress mornitoring system, pass through
Shell structure, power supply, four groups of ring type sensors, processor and memory are set, are effectively reduced rock mass engineering project the ground stress gauge
Volume and weight, and make stress mornitoring more convenient and efficient.
To achieve the above object, the embodiment of the present invention adopts the following technical scheme that：
A kind of rock mass engineering project the ground stress gauge, including shell structure, power supply, four groups of ring type sensors, processor and storage
Device, the power supply, four groups of ring type sensors and memory are connected with the processor respectively.
The shell structure includes head, hollow shell and afterbody, the hollow shell be connected to the head with it is described
Between afterbody, the hollow shell interior is provided with along central axis and is provided with lock bolt, and four groups of ring type sensors are successively
Spacer sleeve is located at the lock bolt, is respectively arranged with induction contact on each ring type sensor, the housing hollow shell with
The corresponding position of each induction contact is provided with the through hole to match with the induction contact, each ring type sensor point
Not Jian Ce rock mass change in displacement and produce displacement signal and send to the processor, the processor is according to each displacement
Signal obtains multiple stress values and sent to the memory, so that each stress value of the memory storage.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the rock mass engineering project crustal stress
Meter also includes four filtering and amplifying circuits, and four filtering and amplifying circuits are connected to four groups of ring type sensors in institute
Between stating processor, the displacement signal that each filtering and amplifying circuit detects to corresponding ring type sensor respectively is amplified
Sent after filtering to the processor.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the rock mass engineering project crustal stress
Meter also includes first voltage change-over circuit and second voltage change-over circuit, and the first voltage change-over circuit is connected to the power supply
Between the processor, the second voltage change-over circuit is connected to the first voltage change-over circuit and filtered with each amplification
Between wave circuit, the voltage conversion that the first voltage change-over circuit exports the power supply for 5V and exports, second electricity
The voltage conversion that voltage conversion circuit exports the first voltage change-over circuit is positive and negative 3.3V and reference voltage 3.3V and exported.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the rock mass engineering project crustal stress
Meter also includes terminal plate and plugboard, and the terminal plate is arranged at the bottom of the lock bolt, and the plugboard is arranged at described
For lock bolt close to one end of the afterbody, four groups of ring type sensors pass sequentially through the terminal plate and plugboard respectively with four
Individual filtering and amplifying circuit electrical connection.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the rock mass engineering project crustal stress
Meter also includes the communication module for being associated with terminal device, and the communication module electrically connects with the processor and is arranged at the tail
Portion.
Invention preferred embodiment selection in, in above-mentioned rock mass engineering project the ground stress gauge, the processor, memory with
And power supply is arranged on a circuit board, the circuit board is arranged at the hollow shell and close to one end of the afterbody.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the rock mass engineering project crustal stress
Meter also includes button switch and indicator lamp, and the button switch and indicator lamp electrically connect with the processor respectively, the button
Switch and the indicator lamp are respectively arranged at side of the afterbody away from the hollow shell.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, on each ring type sensor
The induction contact of setting is two and is oppositely arranged, and using the central axis of the hollow shell as axle, adjacent ring type passes two-by-two
Rotation differs 45 ° successively on the induction contact circumference set on sensor.
In the preferred embodiment selection of invention, in above-mentioned rock mass engineering project the ground stress gauge, the afterbody includes conic clamp
Tight device and bonnet, the taper clamping device are connected with the hollow shell, and it is remote that the bonnet is arranged at the taper clamping device
One end of the hollow shell.
The present invention also provides a kind of stress mornitoring system, including finder, terminal device and above-mentioned rock mass engineering project
Stressometer, the rock mass engineering project the ground stress gauge, finder are connected with the terminal equipment in communication respectively.
A kind of rock mass engineering project the ground stress gauge provided in an embodiment of the present invention and stress mornitoring system, answer the rock mass engineering project
Power meter is applied to the stress mornitoring system, and the rock mass engineering project the ground stress gauge includes shell structure, power supply, four groups of ring type sensings
Device, processor and memory.The shell structure includes head, hollow shell and afterbody, and the hollow shell is connected to institute
State between head and the afterbody, the hollow shell interior is provided with along central axis and is provided with lock bolt, four groups of rings
Spacer sleeve is located at the lock bolt to formula sensor successively, and induction contact, the shell are respectively arranged with each ring type sensor
The corresponding position of body hollow shell and each induction contact is provided with the through hole to match with the induction contact, each described
Ring type sensor detects the change in displacement of rock mass and produces displacement signal and send to the processor, the processor root respectively
Multiple stress values are obtained according to each institute's displacement signal and are sent to the memory, so that each stress of the memory storage
Value.The volume and weight of rock mass engineering project the ground stress gauge is effectively reduced by above-mentioned setting, and makes the more convenient height of stress mornitoring
Effect.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of structural representation of rock mass engineering project the ground stress gauge provided in an embodiment of the present invention.
Fig. 2 shows a kind of connection block diagram of rock mass engineering project the ground stress gauge provided in an embodiment of the present invention.
Fig. 3 shows a kind of circuit theory diagrams of first voltage change-over circuit provided in an embodiment of the present invention.
Fig. 4 shows a kind of circuit theory diagrams of second voltage change-over circuit provided in an embodiment of the present invention.
Fig. 5 shows that the present invention implements a kind of another structural representation of rock mass engineering project the ground stress gauge of offer.
Fig. 6 shows a kind of application schematic diagram of rock mass engineering project the ground stress gauge provided in an embodiment of the present invention.
Fig. 7 shows a kind of connection block diagram of stress mornitoring system provided in an embodiment of the present invention.
Icon：10- stress mornitoring systems；100- rock mass engineering project the ground stress gauges；110- shell structures；112- heads；114-
Hollow shell；115- through holes；116- afterbodys；117- taper clamping devices；118- bonnets；119- lock bolts；120- power supplys；130- rings
Formula sensor；135- induction contacts；140- processors；150- memories；160- communication modules；170- filtering and amplifying circuits；
180- first voltage change-over circuits；190- second voltage change-over circuits；210- button switches；220- indicator lamps；230- circuit boards；
240- terminal plates；250- plugboards；300- finders；500- terminal devices.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment only
It is the part of the embodiment of the present invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings
The component of embodiment can be configured to arrange and design with a variety of.
Therefore, below the detailed description of the embodiments of the invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.It is common based on the embodiment in the present invention, this area
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
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, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " connection " are answered
It is interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body implication.
Incorporated by reference to Fig. 1 and Fig. 2, the present invention, which provides a kind of rock mass engineering project the ground stress gauge 100, includes shell structure 110, power supply
120th, four groups of ring type sensors 130, processor 140 and memory 150, described 120, four groups of and of ring type sensor 130 of power supply
Memory 150 is connected with the processor 140 respectively.
The shell structure 110 includes head 112, hollow shell 114 and afterbody 116, and the hollow shell 114 is connected to
Between the head 112 and the afterbody 116, the hollow shell 114, which is internally provided with along central axis, is provided with lock bolt
119, spacer sleeve is located at the lock bolt 119 to four groups of ring type sensors 130 successively, divides on each ring type sensor 130
Induction contact 135 is not provided with, and the housing hollow shell 114 and the corresponding position of each induction contact 135 are provided with
The through hole 115 to match with the induction contact 135, each ring type sensor 130 detect the change in displacement of rock mass simultaneously respectively
Produce displacement signal and send to the processor 140, the processor 140 and multiple stress are obtained according to each institute's displacement signal
It is worth and sends to the memory 150, so that the memory 150 stores each stress value.
By above-mentioned setting so that the rock mass engineering project the ground stress gauge 100 is when detecting rock mass stress, effectively prevent makes
With existing stress deformation timing, it is necessary to which cable to be accessed to the afterbody 116 of deformation gauge, passed by drilling tool, and access monitoring and set
Volume and weight caused by standby is excessive, and detection efficiency is low, detects the situation of inconvenience.
Wherein, the hollow shell 114 is cylindrical shape, the head 112 to be shaped as semicircle spherical, and the semicircle top dome
End is provided centrally with hemispherical projections, and the hollow shell 114 is connected between the head 112 and the afterbody 116 with structure
Into receiving space.
The rock mass engineering project the ground stress gauge 100 is arranged in rock mass for convenience, or the rock mass work is taken out out of rock mass
Journey the ground stress gauge 100.Optionally, in the present embodiment, the afterbody 116 includes taper clamping device 117 and bonnet 118, described
Taper clamping device 117 is connected with the hollow shell 114, and the bonnet 118 is arranged at the taper clamping device 117 away from described
One end of hollow shell 114.
The power supply 120 is battery.Each ring type sensor 130 is the cirque structure of identical size.The ring
The induction contact 135 set on formula sensor 130 can be one or multiple.Optionally, in the present embodiment, institute
It is two to state the induction contact 135 set on ring type sensor 130, and two induction contacts 135 are oppositely arranged.
When four ring type sensors 130 are arranged at intervals at the lock bolt 119 successively, with the hollow shell 114
Mandrel line is axle, and rotation differs 45 ° successively on the circumference of induction contact 135 set two-by-two on adjacent ring type sensor 130.
During by above-mentioned setting so that the rock mass engineering project the ground stress gauge 100 is used to detect the stress of rock mass, it can detect
The stress of different azimuth, and then the accuracy of effective guarantee testing result.
The processor 140 can be a kind of IC chip, have signal handling capacity.The processor 140 can
To be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc.；It can also be digital signal processor (DSP), application specific integrated circuit (ASIC), field-programmable gate array
Arrange (FPGA) either other PLDs, discrete gate or transistor logic, discrete hardware components.General procedure
Device can be microprocessor or the processor can also be any conventional processor etc..It is not specifically limited herein, according to
Actual demand is configured.
The memory 150 can be but not limited to, storage card, random access memory (Random Access
Memory, RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only
Memory, EPROM), electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only
Memory, EEPROM) etc..It is not specifically limited, is configured according to the actual requirements herein.
Testing result is sent to end after the completion of the stress of detection rock mass for convenience of the rock mass engineering project the ground stress gauge 100
End equipment 500, optionally, in the present embodiment, the rock mass engineering project the ground stress gauge 100 also includes being associated with terminal device 500
Communication module 160, the communication module 160 electrically connects with the processor 140 and is arranged at the tail of the shell structure 110
Portion 116.Wherein, the communication module 160 can be communication interface or wireless communication module, not limit specifically herein
It is fixed, it is configured according to the actual requirements.
Optionally, in the present embodiment, the rock mass engineering project the ground stress gauge 100 also includes four filtering and amplifying circuits 170,
Four filtering and amplifying circuits 170 are connected to four groups of ring type sensors 130 between the processor 140, respectively
The displacement signal that the filtering and amplifying circuit 170 detects to corresponding ring type sensor 130 respectively is sent out after being amplified filtering
Deliver to the processor 140.By above-mentioned setting so that the testing result of the rock mass engineering project the ground stress gauge 100 is more accurate.
Incorporated by reference to Fig. 3 and Fig. 4, in the present embodiment, the rock mass engineering project the ground stress gauge 100, which also includes first voltage, to be changed
Circuit 180 and second voltage change-over circuit 190, the first voltage change-over circuit 180 are connected to the power supply 120 and the place
Between managing device 140, the second voltage change-over circuit 190 is connected to the first voltage change-over circuit 180 and each amplification
Between filter circuit 170, the voltage conversion that the first voltage change-over circuit 180 exports the power supply 120 for 5V and exports,
The voltage conversion that the second voltage change-over circuit 190 exports the first voltage change-over circuit 180 is positive and negative 3.3V and base
Quasi- voltage 3.3V is simultaneously exported.By above-mentioned setting so that the power supply 120 to the processor 140 and each described can be put simultaneously
Big filter circuit 170 is powered, effectively to avoid the need for using multiple power supplys 120 to supply respectively each component
The problem of volume and weight of rock mass engineering project the ground stress gauge 100 is excessive caused by electricity.
It is in the present embodiment, optional to avoid the rock mass engineering project the ground stress gauge 100 from consuming electric energy in the standby state
, the rock mass engineering project the ground stress gauge 100 also includes button switch 210 and indicator lamp 220, the button switch 210 and instruction
Lamp 220 electrically connects with the processor 140 respectively, and the button switch 210 and the indicator lamp 220 are respectively arranged at the tail
Side of the portion 116 away from the hollow shell 114.
Wherein, the button switch 210 and the indicator lamp 220 are respectively arranged at the taper clamping device 117 close to institute
The side of bonnet 118 is stated, the indicator lamp 220 is lit when pressing button switch 210.By above-mentioned setting with further side
Just user uses the rock mass engineering project the ground stress gauge 100.
Incorporated by reference to Fig. 5, to avoid the rock mass engineering project the ground stress gauge 100 in use, between each electric elements
Connection is disconnected.Optionally, in the present embodiment, the processor 140, memory 150 and power supply 120 are arranged at a circuit
On plate 230, the circuit board 230 is arranged at the hollow shell 114 and close to one end of the afterbody 116.
Further to avoid disconnecting between each ring type sensor 130 and the processor 140.In the present embodiment
In, the rock mass engineering project the ground stress gauge 100 also includes terminal plate 240 and plugboard 250, and the terminal plate 240 is arranged at described
The bottom of lock bolt 119, the plugboard 250 are arranged at the lock bolt 119 close to one end of the afterbody 116, and described four
Group ring type sensor 130 passes sequentially through the terminal plate 240 and plugboard 250 and is electrically connected respectively with four filtering and amplifying circuits 170
Connect.
Incorporated by reference to Fig. 6, the stress mornitoring system 10 is in the stress for detecting rock mass, first on rock mass to be measured
One section of set drilling of probing, then in coaxial one detection hole of probing of set foot of hole, and is put into the rock in the detection hole
Body engineering ground stress meter 100, and the stress constraint solution of the surrounding rock body of rock mass engineering project the ground stress gauge 100 is removed, work as stress constraint
After releasing, the deformation of the surrounding rock body of rock mass engineering project the ground stress gauge 100 causes rock mass engineering project the ground stress gauge 100 to produce strain.Pass through
The strain of demarcation and deformation relationship, the aperture deflection for obtaining measured hole is calculated, the stress of rock mass is gone out according to deflection inverse.
In the present invention, in drilling and when deforming upon, induction contact 135 is subjected to displacement rock mass engineering project the ground stress gauge 100 therewith, is entered
And the ring type sensor 130 is set to detect that the deformation of rock mass obtains displacement signal.
Incorporated by reference to Fig. 7, on the basis of the above, the present invention also provides a kind of stress mornitoring system 10, including finder 300,
Terminal device 500 and above-mentioned rock mass engineering project the ground stress gauge 100, the rock mass engineering project the ground stress gauge 100, finder 300 divide
Do not communicated to connect with the terminal device 500.
Because the stress mornitoring system 10 includes the rock mass engineering project the ground stress gauge 100, therefore the stress mornitoring system
System 10 has the individual features of the rock mass engineering project the ground stress gauge 100, does not repeat one by one herein.
It should be noted that when carrying out stress mornitoring using the stress mornitoring system 10, on-the-spot test is typically in water
Carried out in flat set drilling, one section of set drilling is drilled in crustal stress rock mass region to be measured and proceeds to target zone, at this
The lower section of drilling is covered, then drills a measured hole, described measured hole and set drilling are coaxial, but diameter is smaller.Record the set
Bore direction, and the rock mass engineering project the ground stress gauge 100 is pushed into measured hole with push rod, start the finder 300 and measure
To record the inclination angle in the deep orientation of the rock mass engineering project the ground stress gauge 100, the orientation of drilling and drilling；Keep the rock mass work
Journey the ground stress gauge 100 stands a period of time in hole, is drilled using set, carries out stress relieving to measured hole, while record drilling
Time and speed, it is to be drilled to stop drilling when entering designated depth.Fracture core, and taking-up carries rock mass engineering project the ground stress gauge
100 core simultaneously takes out the rock mass engineering project the ground stress gauge 100, and the knot that the rock mass engineering project the ground stress gauge 100 is detected
Fruit, and the finder 300 data transfer to the terminal device 500 so that the terminal device 500 is according to institute
The result that rock mass engineering project the ground stress gauge 100 detects is stated, and the measurement data of the finder 300 obtains the stress inspection of rock mass
Survey result.
To sum up, a kind of rock mass engineering project the ground stress gauge 100 provided by the invention and stress mornitoring system 10, the stress mornitoring
System 10 includes the rock mass engineering project the ground stress gauge 100.The rock mass engineering project the ground stress gauge 100 by set shell structure 110,
120, four groups of ring type sensors 130 of power supply, processor 140 and memory 150 are effectively to avoid rock mass engineering project the ground stress gauge 100
Volume and weight is excessive, and detection efficiency is low, detects the situation of inconvenience.By setting communication module 160, first voltage to turn
Circuit 180 and second voltage change-over circuit 190 are changed further to avoid the volume and weight mistake of rock mass engineering project the ground stress gauge 100
The problem of big.The rock mass engineering project crustal stress is used to further facilitate user by settings button switch 210 and indicator lamp 220
Meter 100.By setting circuit board 230, terminal plate 240 and plugboard 250 so that the practicality of the rock mass engineering project the ground stress gauge 100
Property is stronger.
Obviously, those skilled in the art should be understood that the function of the above-mentioned embodiment of the present invention can use general meter
Device is calculated to realize, they can be concentrated on single computing device, or are distributed in the net that multiple computing devices are formed
On network, it is thus possible to be stored in storage device by computing device to perform, or they are fabricated to respectively each
Integrated circuit modules, or the multiple modules or step in them are fabricated to single integrated circuit module to realize.So, originally
The function of invention realizes that being not restricted to any specific hardware and software combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of rock mass engineering project ground rock mass engineering project the ground stress gauge, it is characterised in that passed including shell structure, power supply, four groups of ring types
Sensor, processor and memory, the power supply, four groups of ring type sensors and memory are connected with the processor respectively；
The shell structure includes head, hollow shell and afterbody, and the hollow shell is connected to the head and the afterbody
Between, the hollow shell interior is provided with along central axis and is provided with lock bolt, and four groups of ring type sensors are spaced successively
The lock bolt is sheathed on, induction contact, the housing hollow shell and each institute are respectively arranged with each ring type sensor
The corresponding position for stating induction contact is provided with the through hole to match with the induction contact, and each ring type sensor is examined respectively
Survey the change in displacement of rock mass and produce displacement signal and send to the processor, the processor is according to each institute's displacement signal
Obtain multiple stress values and send to the memory, so that each stress value of the memory storage.
2. rock mass engineering project the ground stress gauge according to claim 1, it is characterised in that the rock mass engineering project the ground stress gauge also wraps
Four filtering and amplifying circuits are included, four filtering and amplifying circuits are connected to four groups of ring type sensors in the processing
Between device, after displacement signal that each filtering and amplifying circuit detects to corresponding ring type sensor respectively is amplified filtering
Send to the processor.
3. rock mass engineering project the ground stress gauge according to claim 2, it is characterised in that the rock mass engineering project the ground stress gauge also wraps
Include first voltage change-over circuit and second voltage change-over circuit, the first voltage change-over circuit be connected to the power supply with it is described
Between processor, the second voltage change-over circuit is connected to the first voltage change-over circuit and each filtering and amplifying circuit
Between, the voltage conversion that the first voltage change-over circuit exports the power supply for 5V and exports, the second voltage conversion
The voltage conversion that circuit exports the first voltage change-over circuit is positive and negative 3.3V and reference voltage 3.3V and exported.
4. rock mass engineering project the ground stress gauge according to claim 2, it is characterised in that the rock mass engineering project the ground stress gauge also wraps
Terminal plate and plugboard are included, the terminal plate is arranged at the bottom of the lock bolt, and the plugboard is arranged at the lock bolt
Close to one end of the afterbody, four groups of ring type sensors pass sequentially through the terminal plate and plugboard and amplified respectively with four
Filter circuit electrically connects.
5. rock mass engineering project the ground stress gauge according to claim 1, it is characterised in that the rock mass engineering project the ground stress gauge also wraps
The communication module for being associated with terminal device is included, the communication module electrically connects with the processor and is arranged at the afterbody.
6. rock mass engineering project the ground stress gauge according to claim 1, it is characterised in that the processor, memory and electricity
Source is arranged on a circuit board, and the circuit board is arranged at the hollow shell and close to one end of the afterbody.
7. rock mass engineering project the ground stress gauge according to claim 6, it is characterised in that the rock mass engineering project the ground stress gauge also wraps
Include button switch and indicator lamp, the button switch and indicator lamp electrically connect with the processor respectively, the button switch and
The indicator lamp is respectively arranged at side of the afterbody away from the hollow shell.
8. rock mass engineering project the ground stress gauge according to claim 1, it is characterised in that set on each ring type sensor
Induction contact is two and is oppositely arranged, using the central axis of the hollow shell as axle, two-by-two on adjacent ring type sensor
Rotation differs 45 ° successively on the induction contact circumference of setting.
9. rock mass engineering project the ground stress gauge according to claim 1, it is characterised in that the afterbody include taper clamping device and
Bonnet, the taper clamping device are connected with the hollow shell, and the bonnet is arranged at the taper clamping device away from described
One end of empty shell.
10. a kind of stress mornitoring system, it is characterised in that including finder, terminal device and claim 1-9 any one
Described rock mass engineering project the ground stress gauge, the rock mass engineering project the ground stress gauge, finder are connected with the terminal equipment in communication respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710882254.4A CN107478368A (en) | 2017-09-26 | 2017-09-26 | Rock mass engineering project the ground stress gauge and stress mornitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710882254.4A CN107478368A (en) | 2017-09-26 | 2017-09-26 | Rock mass engineering project the ground stress gauge and stress mornitoring system |
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| CN107478368A true CN107478368A (en) | 2017-12-15 |
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| CN201710882254.4A Pending CN107478368A (en) | 2017-09-26 | 2017-09-26 | Rock mass engineering project the ground stress gauge and stress mornitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907085A (en) * | 2019-11-21 | 2020-03-24 | 中国科学院武汉岩土力学研究所 | Three-dimensional ground stress measuring device based on drilling deformation method |
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