CN107727065A - The sinking deformation monitoring system that drills and its monitoring method - Google Patents
The sinking deformation monitoring system that drills and its monitoring method Download PDFInfo
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- CN107727065A CN107727065A CN201711088638.5A CN201711088638A CN107727065A CN 107727065 A CN107727065 A CN 107727065A CN 201711088638 A CN201711088638 A CN 201711088638A CN 107727065 A CN107727065 A CN 107727065A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 claims abstract description 37
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000011435 rock Substances 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 210000005239 tubule Anatomy 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000013459 approach Methods 0.000 abstract description 2
- 238000004925 denaturation Methods 0.000 abstract description 2
- 230000036425 denaturation Effects 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
- G01C5/04—Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses one kind drilling sinking deformation monitoring system and its monitoring method, it includes a fluid pipeline being installed in rock mass horizontal drilling, and the outer end of hole of fluid pipeline is connected with reservoir；Relatively constant form point outside foot of hole or drilling hole sets reference point as datum mark, multiple measuring points are distributed with drilling, micro-pressure sensor is equipped with datum mark and measuring point, the signal output part of all micro-pressure sensors is connected electrically in by wire on the corresponding port of hole external pressure sensor data collecting instrument.After drilling deforms, the liquid level difference of fluid pipeline and reservoir is changed, and pressure is acted directly on micropressure sensor caused by liquid level difference, and the settling amount of each measuring point is worth to by the front and rear pressure of denaturation that drills.Wide adaptability of the present invention, simple in construction, convenient to carry out, cost is low, and metric data is reliable and stable, and the approach of one is provided for deformation of geotechnical engineering monitoring.
Description
Technical field
The present invention relates to the tunnel of traffic, water conservancy and hydropower, mine and urban construction, side slope and underground engineering rock mass deformation and
STABILITY MONITORING technology.
Background technology
Geotechnical Engineering, mining engineering, the subject matter of slope project and underground engineering rock mass stability.Pass through monitoring
Deformation rule and dynamic inside rock mass, the stability to judging Rock And Soil, dangerous situation is forecast, it is significant to be preventive from possible trouble.
Have at present to the displacement monitoring method inside rock mass varied, still, the application of various methods is all by different
Limitation.Therefore, the monitoring method of different rock mass internal modifications is constantly researched and developed, is very to adapt to different engineering specifications
It is necessary.
Micro-pressure sensor is a kind of pressure sensor the most commonly used in industrial practice, and micro-pressure sensor is in measurement process
In, pressure is acted directly on the diaphragm of sensor, diaphragm is produced the micro-displacement directly proportional to pressure medium, is made sensor
Resistance changes, while detects this change by electronic circuit, and changes one standard for corresponding to this pressure of output
Signal, such process are exactly the process that micro-pressure sensor measures.
The content of the invention
In order to be applicable the monitoring of rock mass internal modification under different engineering specifications, the present invention provides a kind of drilling sedimentation and deformation prison
Examining system.
Present invention simultaneously provides the method using system monitoring drilling sedimentation and deformation.
In order to achieve the above object, the present invention adopts the technical scheme that：
One kind drilling sinking deformation monitoring system, it includes micro-pressure sensor, it is characterised in that it is also installed including one
Fluid pipeline in rock body drilled, the outer end of hole of fluid pipeline are connected with reservoir, it is desirable to which reservoir position is higher than drilling position
Put, to ensure to have stable pressure in fluid pipeline；Relatively constant form point outside foot of hole or drilling hole sets reference point
As datum mark, multiple measuring points are distributed with drilling, micro-pressure sensor, all micro-pressure sensors are equipped with datum mark and measuring point
Signal output part be connected electrically in by wire on the corresponding port of hole external pressure sensor data collecting instrument；
Above-mentioned drilling should tilt slightly towards aperture, prevent influence of the hole internal water accumulation to measurement achievement.
The attachment structure of above-mentioned micro-pressure sensor and fluid pipeline is：A T-shaped threeway, minute-pressure are concatenated on fluid pipeline
The diaphragm of sensor stretches into pipeline, and the body of micro-pressure sensor is screwed on the vertical tube of threeway, and the diaphragm for sensor is direct
Contacted with the liquid in pipeline, sense the liquid pressure value of the point and by signal output to wire.
Above-mentioned bore diameter should meet the requirement that fluid pipeline, T-shaped threeway, micro-pressure sensor and wire load.
Above-mentioned micro-pressure sensor is from high accuracy, such as liquid-pressure pick-up of small-range, diffused silicon pressure transmitter.
It is required that sensor uses hickey form, its range determines according to the liquid level of reservoir with pipeline minimum point potential difference.It is general this
One height is less than 2m, therefore selected range is 0~30KPa.The output signal of sensor selects 4~20mA canonical form
Formula.
Pressure sensor Acquisition Instrument uses general 4~20mA multichannel data acquisition systems, by being wirelessly transferred a number
According to transmission to main frame.The port number of Acquisition Instrument is corresponding with number of sensors.
The method that drilling sedimentation and deformation is monitored using monitoring system of the present invention is as follows：
The first step:Constructed in rock mass nearly horizontal drilling, in order to prevent the ponding that drills, drilling should be slightly toward outer incline.Then
Fluid pipeline with micro-pressure sensor is promoted into drilling, the micro-pressure sensor of datum mark is located at relatively motionless as reference point
On position, remaining micro-pressure sensor is just on the measuring point being previously set, by the signal output part of all micro-pressure sensors
On the corresponding port that the data collecting instrument being connected to outside hole is drawn by wire.
Second step：After whole system installs fixation, antifreezing liquid is injected into fluid pipeline from reservoir, utilizes reservoir
Pressure is applied to fluid pipeline with the liquid level difference in fluid pipeline；In order that liquid is full of pipeline, can be in advance in fluid pipeline
It is inner to pipeline to penetrate a tubule, discharges gas during to inject liquid, is pulled out after liquid to be implanted；
3rd step：Rock body drilled deformation is monitored, is specifically included：
3.1st step：The initial pressure value of datum mark and each measuring point is gathered first
If the initial pressure value of datum mark is H0 0；
Since aperture, respectively the first measuring point, the second measuring point, the 3rd measuring point, by that analogy until the n-th measuring point, these
The initial pressure value of measuring point is respectively H0 1、H0 2、H0 3、……H0 n；
3.2nd step:The pressure value of datum mark and each measuring point after collection rock mass sedimentation and deformation
The datum mark and the pressure value of each measuring point that rock mass sedimentation and deformation around drilling is gathered after experience t days are respectively Ht 0、
Ht 1、Ht 2、Ht 3、……Ht n, then at this moment the settling amount of the i-th measuring point can be calculated as follows：
In formula：
0.1 represents the pressure of 1mm water columns, unit Pa/mm；
The settling amount of surrounding rock body, mm after-the i-th measuring point undergoes t days；
Pressure in the liquid line that-the i-th measuring point is gathered after undergoing t days, unit Pa.
The positive effect of the present invention is：The present invention will drill deformation by the liquid level difference of fluid pipeline and reservoir it is apparent go out
Come, after drilling deforms, the point position of the fluid pipeline in drilling generates lifting or reduction, fluid pipeline and liquid storage
The liquid level difference of device is changed, and pressure is acted directly on micropressure sensor caused by liquid level difference.Pass through micropressure sensor
The pressure value of each measuring point after deformation is measured, the settling amount of each measuring point is then worth to by the front and rear pressure of denaturation that drills.
Wide adaptability of the present invention, simple in construction, convenient to carry out, cost bottom, metric data is reliable and stable, is carried for deformation of geotechnical engineering monitoring
The approach of one is supplied.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of monitoring system embodiment of the present invention, and datum mark is located at outside drilling in figure；
Fig. 2 is the setting structure figure of micro-pressure sensor in monitoring system of the present invention
Fig. 3 is the exemplary application map of the present invention
Marginal data：1- drills；2- fluid pipelines；3- datum marks；The first measuring points of 4- 1；The measuring points of 5- second；6- the 3rd is surveyed
Point；7- wires；8- Acquisition Instruments；9- reservoirs；10- liquid levels；11- threeways；12- micro-pressure sensors；13- side slope surfaces；14- side slopes
Speculate slip-crack surface；15- drilling sinking deformation monitoring systems.
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, apparent is clearly defined so as to be made to protection scope of the present invention.
As shown in Figure 1-2, present invention drilling sinking deformation monitoring system embodiment, including one be installed in rock body drilled 1
Interior fluid pipeline 2, the outer end of hole of fluid pipeline 2 are connected with reservoir 9, it is desirable to which the position of reservoir 9 is protected higher than 1 position of drilling
There is stable pressure in card fluid pipeline 2, can be with direct feel to the deformation to drill according to the change of liquid level 10；In embodiment
Section is provided with datum mark 3 outside the hole of fluid pipeline 2, and hole inner segment is interval with the first to the 3rd measuring point 4-6, datum mark 3 and first to
Micro-pressure sensor 12 is equipped with three measuring point 4-6, the signal output part of all micro-pressure sensors 12 is connected electrically in hole by wire 7
On the corresponding port of external pressure data collecting instrument 8；
The attachment structure of above-mentioned micro-pressure sensor 12 and fluid pipeline 2 is：A T-shaped threeway is concatenated on fluid pipeline 2
11, the diaphragm of micro-pressure sensor 12 stretches into fluid pipeline 2, and the body of micro-pressure sensor 12 is screwed on the vertical tube of threeway 11, uses
Calculated in the deformation to diaphragm, result of calculation is output to wire 7 by signal output part.
Illustrate the method using monitoring system of the present invention monitoring drilling sedimentation and deformation below according to an application example.
Certain opencast gold ore slope height 170m, comprehensive 51 degree of slope angle.Slope rock mass construction is complicated, local broken unstability.
In order to ensure the safety in production of mine, possible trouble is preventive from, ore deposit side is entered except the method being combined using GPS system and optical measurement
The displacement monitoring of row side slope surface 13, and intend the drilling sedimentation deformation monitoring method using the present invention, to grasp in slope rock mass
The deformation dynamics in portion.During implementation, two groups of drilling sinking deformation monitoring systems 15, every group of drillable length are arranged on same section
28m, it is distributed 12 measuring points.Because side slope deep rock mass will not deform, therefore point on the basis of the measuring point of foot of hole is set,
Measuring point numbering from bottom hole to aperture is followed successively by 1,2,3 ... 11.Measuring point is using high accuracy diffusion micro-silicon pressure sensor, amount
Journey is 0~30KPa, synthesis precision 0.25%FS, long-time stability 0.1%FS.Data are adopted by the secondary meter for being located at aperture
Collect and be converted into transmission of wireless signals, received, handled and stored by being located at mine control room.
First data acquisition is carried out after two groups of monitoring system installations, collection daily later is once.Table one and table two are two
The monitoring result of 60 days after group detecting system installation.As can be seen from the table, side slope overall deformation amount is smaller, in normal model
Enclose, the stabilization inside slope rock mass is continuous, is not having appearance to deform not around prediction slip-crack surface 14 as shown in Figure 3
Continuous phenomenon, it can be seen that side slope is in monolithic stability state.
Table one (first group of monitoring result)
| Measuring point | Initial pressure value (KPa) | Pressure value (KPa) after deformation | Settling amount (mm) |
| Datum mark | 15.305 | 14.920 | 0 |
| First measuring point | 15.370 | 14.988 | 0.3 |
| Second measuring point | 15.441 | 15.061 | 0.5 |
| 3rd measuring point | 15.510 | 15.133 | 0.8 |
| 4th measuring point | 15.583 | 15.210 | 1.2 |
| 5th measuring point | 15.654 | 15.289 | 2.0 |
| 6th measuring point | 15.725 | 15.368 | 2.8 |
| 7th measuring point | 15.798 | 15.448 | 3.5 |
| 8th measuring point | 15.870 | 15.528 | 4.3 |
| 9th measuring point | 15.943 | 15.610 | 5.2 |
| Tenth measuring point | 16.017 | 15.699 | 6.7 |
| 11st measuring point | 16.090 | 15.783 | 7.8 |
Table two (second group of monitoring result)
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
The change or replacement expected without creative work, it should all be included within the scope of the present invention.Therefore, it is of the invention
Protection domain should be determined by the scope of protection defined in the claims.
Claims (4)
1. one kind drilling sinking deformation monitoring system, it includes micro-pressure sensor, it is characterised in that it is also installed in including one
Fluid pipeline in rock body drilled, the outer end of hole of fluid pipeline are connected with reservoir, it is desirable to and reservoir position is higher than bore position,
To ensure to have stable pressure in fluid pipeline；Relatively constant form point outside foot of hole or drilling hole sets reference point conduct
Datum mark, multiple measuring points are distributed with drilling, micro-pressure sensor, the letter of all micro-pressure sensors are equipped with datum mark and measuring point
Number output end is connected electrically in by wire on the corresponding port of hole external pressure sensor data collecting instrument；
The attachment structure of above-mentioned micro-pressure sensor and fluid pipeline is：A T-shaped threeway, minute-pressure sensing are concatenated on fluid pipeline
The diaphragm of device stretches into pipeline, and the body of micro-pressure sensor is screwed on the vertical tube of threeway, the diaphragm for sensor directly with pipe
Liquid contact in road, senses the liquid pressure value of the point and by signal output to wire.
2. drilling sinking deformation monitoring system as claimed in claim 1, it is characterised in that the micro-pressure sensor selected range
For 0~30KPa liquid-pressure pick-up, the output signal of sensor selects 4~20mA canonical form；Described pressure passes
Sensor Acquisition Instrument uses general 4~20mA multichannel data acquisition systems, and data are sent to main frame by being wirelessly transferred, adopted
The port number for collecting instrument is corresponding with number of sensors.
3. a kind of method of drilling sinking deformation monitoring system monitoring drilling sedimentation and deformation using described in claim 1 or 2, its
It is characterised by,
The first step:Constructed in rock mass nearly horizontal drilling, drilling should reach the purpose for the ponding that prevents from drilling toward outer incline, then
Fluid pipeline with micro-pressure sensor is promoted into drilling, the micro-pressure sensor of datum mark is located at relatively motionless as reference point
On position, remaining micro-pressure sensor is just on the measuring point being previously set, by the signal output part of all micro-pressure sensors
On the corresponding port that the data collecting instrument being connected to outside hole is drawn by wire；
Second step：After whole system installs fixation, antifreezing liquid is injected into fluid pipeline from reservoir, utilizes reservoir and liquid
Liquid level difference in body pipeline applies pressure to fluid pipeline；
3rd step：Rock body drilled deformation is monitored, is specifically included：
3.1st step：The initial pressure value of datum mark and each measuring point is gathered first
If the initial pressure value of datum mark is H00；
Since aperture, respectively the first measuring point, the second measuring point, the 3rd measuring point, by that analogy until the n-th measuring point, these measuring points
Initial pressure value be respectively H01、H02、H03、……H0n；
3.2nd step：The pressure value of datum mark and each measuring point after collection rock mass sedimentation and deformation
The datum mark and the pressure value of each measuring point that rock mass sedimentation and deformation around drilling is gathered after experience t days are respectively Ht 0、
Ht 1、Ht 2、Ht 3、……Ht n, then at this moment the settling amount of the i-th measuring point can be calculated as follows：
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In formula：
0.1 represents the pressure of 1mm water columns, unit Pa/mm；
The settling amount of surrounding rock body, mm after-the i-th measuring point undergoes t days；
Pressure in the liquid line that-the i-th measuring point is gathered after undergoing t days, unit Pa.
4. method as claimed in claim 3, it is characterised in that before antifreezing liquid is injected, one is penetrated in fluid pipeline
Root tubule is inner to pipeline, discharges gas during to inject liquid, is pulled out after liquid to be implanted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088638.5A CN107727065B (en) | 2017-11-08 | 2017-11-08 | Drilling sedimentation deformation monitoring system and monitoring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711088638.5A CN107727065B (en) | 2017-11-08 | 2017-11-08 | Drilling sedimentation deformation monitoring system and monitoring method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107727065A true CN107727065A (en) | 2018-02-23 |
| CN107727065B CN107727065B (en) | 2023-10-24 |
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| CN108571947A (en) * | 2018-04-19 | 2018-09-25 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of offshore embankment multi-point settlement monitoring system |
| CN108981655A (en) * | 2018-03-30 | 2018-12-11 | 胡仲春 | Tunnel roof settlement monitoring mechanism and tunnel roof Monitoring method of the subsidence |
| CN111852828A (en) * | 2020-07-23 | 2020-10-30 | 嘉善边锋机械股份有限公司 | Diaphragm pump with pressure real-time monitoring and control functions |
| CN113431018A (en) * | 2021-05-28 | 2021-09-24 | 中交第一公路勘察设计研究院有限公司 | Frozen soil roadbed deformation field optimization monitoring equipment and method based on grating array |
| CN116358487A (en) * | 2023-02-09 | 2023-06-30 | 山东大学 | Micro-pressure ground deformation area-based area type monitoring system and method |
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| Publication number | Publication date |
|---|---|
| CN107727065B (en) | 2023-10-24 |
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