CN108801505A - The cell cube method and device that Disturbance stress measures - Google Patents
The cell cube method and device that Disturbance stress measures Download PDFInfo
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- CN108801505A CN108801505A CN201810599551.2A CN201810599551A CN108801505A CN 108801505 A CN108801505 A CN 108801505A CN 201810599551 A CN201810599551 A CN 201810599551A CN 108801505 A CN108801505 A CN 108801505A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The cell cube method and device measured an embodiment of the present invention provides a kind of Disturbance stress, is related to ground field of measuring technique.By the way that strain measurement module to be mounted in the oblique perforative duct in the flexible deformation body, corresponding duct axis direction deformation is measured.The strain that elastic deformable body is calculated according to measurement result, to measure the Disturbance stress for obtaining sensing device place measurement point.It is easy to operate, it is more acurrate.
Description
Technical field
The present invention relates to ground field of measuring technique, a kind of measured in particular to Disturbance stress cell cube method and
Device.
Background technology
In recent years, China's underground space development is quickly grown, and is related to the every aspect of life development, including traffic tunnel
Road, hydraulic tunnel, underground power house, subterranean laboratory, mine laneway, civil defence engineering etc..To ensure underground engineering construction and fortune
The safety of row process needs the understanding for having clear and definite to the stress field evolutionary process of country rock overall process, therefore to crustal stress
Measurement accuracy, measurement range, the measurement continuity of measurement have higher technology requirement.
General measuring method, such as hydraulic fracturing, stress relief method are single measurement stress of primary rock method, can not
Record is measured to the change procedure of surrouding rock stress under disturbed conditions；Also the side of pre-buried pressure cell or stress meter is used in engineering
Method records the change procedure of stress, but can only be directed to single direction or the stress of special component measure record, Wu Fashi
The measurement of triple stress court in existing country rock；Liu Quansheng proposes that flow stress restores principle, and develops stress measurement device, due to surveying
The limitation of principle is measured, geostress survey is only applicable to soft rock strata, and for non-soft rock strata, hole can't be at any time without accepting within limits
Deformation is held back up to the stress of primary rock, and can reach stable under smaller deformation state, flow stress restores principle and is no longer applicable in.This
Outside, flow stress restoring method is fixedly mounted using two sensors according to certain angle, measuring unit size it is larger (40~
50cm), stress field of the surrounding rock, especially near field disturbance stress field, very big along concentration gradient during construction disturbance, rheology is answered
Power restoring method measuring unit actually cannot achieve the stress state measurement to a single point.
Invention content
The cell cube method and device measured the purpose of the present invention is to provide a kind of Disturbance stress.The technology that the present invention takes
Scheme is as follows：
In a first aspect, an embodiment of the present invention provides a kind of sensing device, including elastic deformable body.In the flexible deformation
At least one oblique perforative duct is set in vivo.It is oblique perforative in each of at least one oblique perforative duct
Strain measurement module is installed in duct.The strain measurement module is for measuring corresponding duct axis direction deformation.
Second aspect, an embodiment of the present invention provides a kind of Disturbance stress measuring systems, and the system comprises above-mentioned biographies
Induction device and data processing equipment.The sensing device is connect with the data processing equipment.The sensing device is for being arranged
In the measurement point in country rock.The data processing equipment, for obtaining the measurement point of the sensing device acquisition at least
One duct strain value.The data processing equipment obtains the measurement point for being based at least one duct strain value
The Disturbance stress value at place.
The third aspect, an embodiment of the present invention provides a kind of Disturbance stress measuring system mounting process, the mounting process
Including：In roadway surrounding rock internal drilling to measurement point；Sensing device is set to the measurement point, records the peace of sensing device
Fill angle；Strain measurement module in sensing device is connect by data line with the data processing equipment outside hole；Device to hole slip casting, is filled out
Hole is sealed after full；After grout cures, data processing equipment reads the data of sensing device acquisition.
Fourth aspect, an embodiment of the present invention provides a kind of Disturbance stress measurement methods, are applied to above-mentioned Disturbance stress
Measuring system.The system comprises sensing devices and data processing equipment.The sensing device connects with the data processing equipment
It connects.The measurement point that the sensing device is used to be set in country rock.The method includes：Described in the data processing equipment obtains
At least one duct strain value of the measurement point of sensing device acquisition；The data processing equipment is based on described at least one
Duct strain value obtains the Disturbance stress value of the measurement point.
The cell cube method and device measured an embodiment of the present invention provides a kind of Disturbance stress, by by strain measurement module
In the oblique perforative duct in the flexible deformation body, corresponding duct axis direction deformation is measured.It is tied according to measuring
Fruit calculates the strain of elastic deformable body, to measure the Disturbance stress for obtaining sensing device place measurement point.It is easy to operate, it is more accurate
Really.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that by implementing understanding of the embodiment of the present invention.The purpose of the present invention and other advantages can be by saying what is write
Specifically noted structure is realized and is obtained in bright book, claims and attached drawing.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of structure chart of sensing device provided in an embodiment of the present invention；
Fig. 2 is 12 duct number schematic diagrames in a kind of sensing device provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of Disturbance stress measuring system provided in an embodiment of the present invention；
Fig. 4 is sensing device scheme of installation in Disturbance stress measuring system mounting process provided in an embodiment of the present invention；
Fig. 5 is Disturbance stress measuring system provided in an embodiment of the present invention；
Fig. 6 is the flow chart of Disturbance stress measurement method provided in an embodiment of the present invention.
In figure：100- data processing equipments；200- sensing devices；210- elastic deformable bodies；The ducts 220-；300- disturbances are answered
Force measuring system.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the present invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.Unless otherwise specific
Regulation and restriction, term " setting ", " installation ", " connection " shall be understood in a broad sense, for example, it may be fixed electrical connection, it can also
It is detachably to be electrically connected, or be integrally electrically connected；It can be mechanical electrical connection, can also be electric electrical connection；It can be direct phase
Even, can also can be indirectly connected through an intermediary the connection inside two elements.For the ordinary skill people of this field
For member, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Referring to Fig. 1, an embodiment of the present invention provides a kind of sensing device 200, including elastic deformable body 210, described
At least one oblique perforative duct 220 is set in elastic deformable body 210.In at least one oblique perforative duct 220
Each of strain measurement module is installed in oblique perforative duct 220.The strain measurement module is for measuring corresponding aperture
Road axis direction deformation.
Optionally, referring to Fig. 2, at least one oblique perforative duct 220 is 12 oblique perforative ducts, point
Bian Hao not be 1,2,3,4,5,6,7,8,9,10,11 and 12.
Optionally, the strain measurement module may include resistance strain gage.Resistance strain gage passes through data line and data
Processing unit connects.
A kind of sensing device provided in an embodiment of the present invention, by the way that strain measurement module is mounted on the elastic deformable body
In interior oblique perforative duct, corresponding duct axis direction deformation is measured.Answering for elastic deformable body is calculated according to measurement result
Become, to measure the Disturbance stress for obtaining sensing device place measurement point.It is easy to operate, it is more acurrate.
Referring to Fig. 3, an embodiment of the present invention provides a kind of Disturbance stress measuring system 300, the system comprises sensings
Device 200 and data processing equipment 100.The sensing device 200 is connect with the data processing equipment 100.The sensing dress
Set 200 measurement point for being set in country rock.The data processing equipment 100 is acquired for obtaining the sensing device 200
At least one duct strain value of the measurement point.The data processing equipment is answered for being based at least one duct
Variate obtains the Disturbance stress value of the measurement point.
Optionally, at least one duct strain is 12 duct strain values, the data processing equipment, for being based on
12 duct strain values and preset equation group obtain 6 target strain values；The data processing equipment, for being based on
6 target strain values and preset elastic constitutive model model, obtain the Disturbance stress value of the measurement point.
Optionally, the preset elastic constitutive model model is σ=D ε, and the data processing equipment is used for 6 mesh
It marks strain value to substitute into σ=D ε, obtains the Disturbance stress value of the measurement point；
Wherein,E, ν is preset constant,
σxx,σyy,σzz,σxy,σxz,σyzFor Disturbance stress value, εxx,εyy,εzz,γxy,γxz,γyzFor 6 target strain values.
Optionally, preset equation group is：
In formula (1), ε1、ε2、ε3、ε4、ε5、ε6、ε7、ε8、ε9、ε10、ε11、ε12Respectively described 12 duct strain values,
εxx,εyy,εzz,γxy,γxz,γyzFor 6 target strain values.
The data processing equipment is used to 12 ducts strain value substituting into formula (1), obtains 6 target strains
Value.
Sensing device size is smaller, the Disturbance stress value of certain point in country rock can be measured, for country rock under disturbed conditions
Mechanical response and failure law research and Stability Analysis of The Surrounding Rock provide data basis；As a result of the external measurement of data line,
Can measured value be conveniently obtained in real time, be easy to field conduct；It can carry out long-term surrouding rock stress monitoring.
An embodiment of the present invention provides a kind of Disturbance stress measuring systems 300, and the system comprises 200 sum numbers of sensing device
According to processing unit 100.The sensing device 200 is connect with the data processing equipment 100.The sensing device 200 is for setting
The measurement point being placed in country rock.The data processing equipment 100, the measurement for obtaining the acquisition of the sensing device 200
At least one duct strain value at point.The data processing equipment obtains institute for being based at least one duct strain value
State the Disturbance stress value of measurement point.It is easy to operate, it is more acurrate.
An embodiment of the present invention provides a kind of Disturbance stress measuring system mounting process, the mounting process includes：
In roadway surrounding rock internal drilling to measurement point；
Sensing device is set to the measurement point, records the setting angle of sensing device；
Strain measurement module in sensing device is connect by data line with the data processing equipment outside hole；
Device to hole slip casting, seals hole after filling up；
After grout cures, data processing equipment reads the data of sensing device acquisition.
Fig. 4 and Fig. 5 are please referred to, is the variation for accurately measuring country rock internal stress field, concrete mortar perfusion may be used
Into hole, stabilization stress of the sensing device in hole is realized.In Fig. 4 and Fig. 5, s1 indicates that country rock, s2 indicate that hole, s3 indicate connection
Bar, s4 indicate that sensing device 200 is set to the measurement point by data line in roadway surrounding rock internal drilling to measurement point；It passes
Strain measurement module in induction device 200 is connect by data line with the data processing equipment 100 outside hole；Device to hole slip casting, is filled up
Hole is sealed afterwards；After grout cures, data processing equipment reads the data of sensing device acquisition.Data processing equipment 100 wraps
Include readout instrument.It adopted the above method to implement repeatedly to measure in for a long time, so that it may to obtain the development of in-situ stress data of the measurement point.
In the present embodiment, data processing equipment 100 may include memory, storage control, one or more processing
Device and display module.Between memory, storage control, one or more processors and each element of display module directly or indirectly
Ground is electrically connected, to realize the transmission or interaction of data.For example, between these elements can by one or more communication bus or
Signal bus realizes electrical connection.
Memory can store various software programs and module, such as Disturbance stress measurement side provided by the embodiments of the present application
Corresponding program instruction/the module of method.Processor is by running software program and module stored in memory, to execute
The Disturbance stress measurement method in the embodiment of the present application is realized in various function application and data processing.
Memory can include but is not limited to random access memory (Random Access Memory, RAM), read-only to deposit
Reservoir (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only Memory,
PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM), electric erasable
Read-only memory (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Processor can be a kind of IC chip, have signal handling capacity.Above-mentioned processor can be general place
Manage device, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit (Network
Processor, abbreviation NP) etc.；It can also be digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable
Gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components.It can
To realize or execute disclosed each method, step and the logic diagram in the embodiment of the present application.General processor can be micro-
Processor or the processor can also be any conventional processor etc..
In the embodiment of the present invention, data processing equipment 100 can be PC (personal computer) computer, tablet
The terminal devices such as computer, mobile phone, laptop, smart television, set-top box, car-mounted terminal.
Referring to Fig. 6, an embodiment of the present invention provides a kind of Disturbance stress measurement method, it is applied to above-mentioned Disturbance stress
Measuring system, the system comprises sensing device and data processing equipment, the sensing device connects with the data processing equipment
It connects, the measurement point that the sensing device is used to be set in country rock, the method includes：Step S600 and step S610.
Step S600：The data processing equipment obtains at least one hole of the measurement point of the sensing device acquisition
Road strain value；
Step S610：The data processing equipment is based at least one duct strain value, obtains the measurement point
Disturbance stress value.
At least one duct strain is 12 duct strain values, step S610, including：
The data processing equipment is based on 12 duct strain values and preset equation group, obtains 6 target strains
Value；
The data processing equipment is based on 6 target strain values and preset elastic constitutive model model, obtains the survey
Disturbance stress value at amount point.
The preset elastic constitutive model model is σ=D ε, and the data processing equipment is based on and preset elastic constitutive model mould
Type obtains the Disturbance stress value of the measurement point, including：
The data processing equipment substitutes into 6 target strain values in σ=D ε, obtains the disturbance of the measurement point
Stress value；
Wherein,E, ν is default normal
Number, σxx,σyy,σzz,σxy,σxz,σyzFor Disturbance stress value, εxx,εyy,εzz,εxy,εxz,εyzFor 6 target strain values.
Preset equation group is：
In formula (1), ε1、ε2、ε3、ε4、ε5、ε6、ε7、ε8、ε9、ε10、ε11、ε12Respectively described 12 duct strain values,
εxx,εyy,εzz,γxy,γxz,γyzFor 6 target strain values.
The data processing equipment is based on 12 duct strain values and preset equation group, obtains 6 target strains
Value, including：
12 ducts strain value is substituted into formula (1) by the data processing equipment, obtains 6 target strain values.
The technique effect of Disturbance stress measurement method provided in an embodiment of the present invention, realization principle and generation and aforementioned system
Embodiment of uniting is identical, and to briefly describe, embodiment of the method part does not refer to place, can refer in corresponding in aforementioned system embodiment
Hold.
An embodiment of the present invention provides a kind of Disturbance stress measurement methods, are applied to above-mentioned Disturbance stress measuring system,
The system comprises sensing device and data processing equipment, the sensing device is connect with the data processing equipment, the biography
The measurement point that induction device is used to be set in country rock, the method includes：The data processing equipment obtains the sensing device
At least one duct strain value of the measurement point of acquisition；The data processing equipment is based at least one duct strain
Value, obtains the Disturbance stress value of the measurement point.It is easy to operate, it is more acurrate.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of sensing device, which is characterized in that including elastic deformable body, be arranged in the flexible deformation body at least one oblique
To perforative duct, strain is installed in the oblique perforative duct in each of at least one oblique perforative duct and is surveyed
Module is measured, the strain measurement module is for measuring corresponding duct axis direction deformation.
2. sensing device according to claim 1, which is characterized in that at least one oblique perforative duct is 12
Oblique perforative duct.
3. sensing device according to claim 1, which is characterized in that the strain measurement module includes resistance strain gage.
4. a kind of Disturbance stress measuring system, which is characterized in that the system comprises biographies as described in any one of claims 1-3
Induction device and data processing equipment, the sensing device are connect with the data processing equipment, and the sensing device is for being arranged
In the measurement point in country rock；
The data processing equipment, at least one duct strain of the measurement point for obtaining the sensing device acquisition
Value；
The data processing equipment, for being based at least one duct strain value, the disturbance for obtaining the measurement point is answered
Force value.
5. system according to claim 4, which is characterized in that at least one duct strain strains for 12 ducts
Value, the data processing equipment obtain 6 target strains for being based on 12 duct strain values and preset equation group
Value；
The data processing equipment obtains the survey for being based on 6 target strain values and preset elastic constitutive model model
Disturbance stress value at amount point.
6. system according to claim 5, which is characterized in that the preset elastic constitutive model model is σ=D ε, the number
According to processing unit the Disturbance stress value of the measurement point is obtained for substituting into 6 target strain values in σ=D ε；
Wherein,E, ν is preset constant, σxx,
σyy,σzz,σxy,σxz,σyzFor Disturbance stress value, εxx,εyy,εzz,γxy,γxz,γyzFor 6 target strain values.
7. a kind of Disturbance stress measuring system mounting process, which is characterized in that the mounting process includes：
In roadway surrounding rock internal drilling to measurement point；
Sensing device is set to the measurement point, records the setting angle of sensing device；
Strain measurement module in sensing device is connect by data line with the data processing equipment outside hole；
Device to hole slip casting, seals hole after filling up；
After grout cures, data processing equipment reads the data of sensing device acquisition.
8. a kind of Disturbance stress measurement method, which is characterized in that be applied to such as claim 4-6 any one of them Disturbance stress
Measuring system, the system comprises sensing device and data processing equipment, the sensing device connects with the data processing equipment
It connects, the measurement point that the sensing device is used to be set in country rock, the method includes：
The data processing equipment obtains at least one duct strain value of the measurement point of the sensing device acquisition；
The data processing equipment is based at least one duct strain value, obtains the Disturbance stress value of the measurement point.
9. according to the method described in claim 8, it is characterized in that, at least one duct strain strains for 12 ducts
Value, the data processing equipment are based at least one duct strain value, obtain the Disturbance stress value of the measurement point, wrap
It includes：
The data processing equipment is based on 12 duct strain values and preset equation group, obtains 6 target strain values；
The data processing equipment is based on 6 target strain values and preset elastic constitutive model model, obtains the measurement point
The Disturbance stress value at place.
10. according to claim 9 any one of them method, which is characterized in that the preset elastic constitutive model model is σ=D
ε, the data processing equipment is based on and preset elastic constitutive model model, obtains the Disturbance stress value of the measurement point, including：
The data processing equipment substitutes into 6 target strain values in σ=D ε, obtains the Disturbance stress of the measurement point
Value；
Wherein,E, ν is preset constant, σxx,
σyy,σzz,σxy,σxz,σyzFor Disturbance stress value, εxx,εyy,εzz,γxy,γxz,γyzFor 6 target strain values.
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| CN201810599551.2A CN108801505B (en) | 2018-06-11 | 2018-06-11 | The cell cube method and device of Disturbance stress measurement |
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| CN201810599551.2A CN108801505B (en) | 2018-06-11 | 2018-06-11 | The cell cube method and device of Disturbance stress measurement |
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| CN108801505B CN108801505B (en) | 2019-11-29 |
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| CN113758622A (en) * | 2021-08-12 | 2021-12-07 | 华能澜沧江水电股份有限公司 | Method for manufacturing disturbance stress sensor |
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| CN108801505B (en) | 2019-11-29 |
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