CN208363067U - Utilize the device of vibratory stress gauge measurement natural gas line surrounding soil pressure - Google Patents
Utilize the device of vibratory stress gauge measurement natural gas line surrounding soil pressure Download PDFInfo
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- CN208363067U CN208363067U CN201820796308.5U CN201820796308U CN208363067U CN 208363067 U CN208363067 U CN 208363067U CN 201820796308 U CN201820796308 U CN 201820796308U CN 208363067 U CN208363067 U CN 208363067U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000002689 soil Substances 0.000 title claims abstract description 41
- 239000003345 natural gas Substances 0.000 title claims abstract description 26
- 238000005259 measurement Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 21
- 239000007789 gas Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses the devices using vibratory stress gauge measurement natural gas line surrounding soil pressure, which includes fixed link, vibratory stress gauge, data line and data collector；Wherein, the fixed link has multiple, is equidistantly equipped in each fixed link multiple for measuring the vibratory stress gauge of fixed link stress variation；The vibratory stress gauge is connected with the data collector for receiving vibratory stress gauge data information by data line.Using the device, without to excavating the face real time data that can acquire pipeline Earth Pressure Around around natural gas line.
Description
Technical field
The utility model belongs to natural gas line safety monitoring field, and in particular to a kind of to be measured using vibratory stress gauge
The device and method of natural gas line surrounding soil pressure.
Background technique
China came into effect that " West-east Gas engineering builds together set nearly 40,000 kilometers of natural gas line up to now from 2000.
Transfering natural gas from the west to the east has pushed the coal that city replaces part power plant, kiln, chemical company and resident living to use with clean fuel along the line
Gas and coal improve lives of the people quality, effectively improve the atmospheric environment of China.The general buried depth of natural gas line is 1.0
Meter or more, China is geological disaster prone country, and the especially geological disaster in gas pipeline approach region can be below to earth's surface
Gas pipeline generates safely extreme influence.
Soil pressure refers to the power that the soil body acts on building or structures, generallys use earth pressure gauge or soil pressure cell measurement
The pressure of the soil body.In the case where soil stabilization, soil pressure is balance to the effect of wherein structures.When there is external force
When, for example, landslide etc. geological disasters, the soil body become unstable, structures therein can be produced bigger effect at this time.Especially
When the soil pressure acted on natural gas line changes greatly, natural gas line distortion, the generation of fracture phenomena can be caused, even
Cause the explosion accident of natural gas line.
The period that development is bred in geological disaster is not fixed, and for service conduit safety, needs to the soil on tube circumference face
Power carries out real-time monitoring.However, earth pressure gauge or soil pressure cell can only be monitored the soil pressure on certain point, and must be into
Row excavates.Since natural gas line is usually embedded in earth's surface hereinafter, for service conduit safety, generally forbid being excavated；It excavates
When, it is necessary to it stops the supple of gas or steam, meeting large area of stopping the supple of gas or steam influences the production and life of resident, this gives the monitoring band of soil pressure great difficulty.
Especially for the gas pipeline by slip mass, the balance that itself can also break power around is excavated, or even accelerates slip mass
Gliding speed.
Summary of the invention
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of utilization vibratory stress gauge measurement day
The device and method of right feed channel surrounding soil pressure.
The above-mentioned purpose of the utility model is achieved by following technical solution:
A kind of device using vibratory stress gauge measurement natural gas line surrounding soil pressure, including fixed link, vibratory string
Formula stress meter, data line and data collector；Wherein, the fixed link has multiple, is equidistantly equipped in each fixed link
Multiple vibratory stress gauges for being used to measure fixed link stress variation；The vibratory stress gauge and for receiving type vibration wire stress
The data collector for counting information is connected by data line.
Preferably, fixed link is the steel pipe of 20,25 or 32mm of diameter.
Preferably, 3 vibratory stress gauges are equidistantly set in each fixed link.
A method of natural gas line surrounding soil pressure is measured using vibratory stress gauge, comprising:
Step 1, select fixed link: fixed link generallys use the hollow or single solid steel control of diameter 20mm, 25mm or 32mm
Make, for fixing vibratory stress gauge, length is determined according to natural gas line diameter and slip mass size, usually 4~6 meters；
Step 2, vibratory stress gauge is connect with fixed link: vibratory stress gauge is used to measure the variation of fixed stress in the bar,
It is usual one group of 3 type vibration wire stress, equidistant to be fixed in fixed link using welding or screw；
Step 3, vibratory stress gauge installs cable: the vibratory stress gauge being connected and fixed on bar using cable；
Step 4, the conversion coefficient K of vibratory stress gauge and soil pressure is measured；
Step 5, it drills: being drilled using drilling machine in fixed link installation site；
Step 6, fixed link is installed: fixed link is installed in drilling；
Step 7, control cabinet is installed: control cabinet is installed on to the position of safety outside slip mass；
Step 8, vibratory stress gauge data acquire: being acquired using data of the control cabinet to vibratory stress gauge；
Step 9, according to the conversion coefficient K in step 4, soil pressure is converted by vibratory stress gauge data；
Wherein, the calculation formula of conversion coefficient K are as follows:
K=(k+k ')/2
The acquisition methods of conversion coefficient k are as follows:
The fixed link for being equidistantly equipped with 3 vibratory stress gauges is taken, is placed horizontally on ground, guarantees that fixed link is each
With ground face contact, 3 vibratory stress gauges connect with control cabinet respectively towards sky direction, 3 vibratory stress gauges at position,
Control cabinet is connected by 3G/4G/5G with the control software of computer end, and to control software transmission data, by the counterweight of 3 500g
It is respectively placed on 3 vibratory stress gauges, stands after ten minutes, read 3 type vibration wires respectively from computer end control software and answer
The corresponding reading a of power meter1、a2And a3:
Firstly, calculating a1、a2And a3Direct mutual deviation, it may be assumed that
d1,2=a1-a2, d1,3=a1-a3, d2,3=a2-a3；
Here, d1,2Indicate a1And a2Difference, d1,3Indicate a1And a3Difference, d2,3Indicate a2And a3Difference,
Secondly, calculating a1、a2And a3Middle error delta,
Δ value is judged, when in | Δ | when≤1, assert that measurement process is qualified；If | Δ | >=1, need again into
Row measurement；
Finally, calculating the corresponding conversion coefficient k of 3 vibratory stress gauges1、k2And k3It is respectively as follows:
According to k1、k2And k3, take the corresponding soil pressure conversion coefficient k of vibratory stress gauge are as follows:
K=(k1+k2+k3)/3；
The acquisition methods of conversion coefficient k ' are as follows:
The above-mentioned fixed link for being equidistantly equipped with 3 vibratory stress gauges is taken, is placed horizontally on ground, guarantees that fixed link is each
With ground face contact, 3 vibratory stress gauges connect with control cabinet respectively backwards to sky direction, 3 vibratory stress gauges at position,
Control cabinet is connected by 3G/4G/5G with the control software of computer end, and to control software transmission data, by the counterweight of 3 500g
It is respectively placed on 3 vibratory stress gauges, stands after ten minutes, read 3 type vibration wires respectively from computer end control software and answer
The corresponding reading a ' of power meter1、a′2With a '3:
Firstly, calculating a '1、a′2With a '3Direct mutual deviation, it may be assumed that
d′1,2=a '1-a′2, d '1,3=a '1-a′3, d '2,3=a '2-a′3；
Here, d '1,2Indicate a '1With a '2Difference, d '1,3Indicate a '1With a '3Difference, d '2,3Indicate a '2With a '3Difference
Value,
Secondly, calculating a '1、a′2With a '3Middle error delta ',
Δ ' value is judged, when | Δ ' | when≤1, assert that measurement process is qualified；If | Δ ' | >=1, it needs again
It measures；
Finally, calculating the corresponding conversion coefficient k ' of 3 vibratory stress gauges1、k′2With k '3It is respectively as follows:
According to k '1、k′2With k '3, obtain the corresponding soil pressure conversion coefficient k ' of vibratory stress gauge are as follows:
K '=(k '1+k′2+k′3)/3。
The utility model has the advantages that
Compared with prior art, remarkable advantage is the utility model, without to being excavated i.e. around natural gas line
The face real time data of pipeline Earth Pressure Around can be acquired.
Detailed description of the invention
Fig. 1 is the device and method that the utility model measures natural gas line surrounding soil pressure using vibratory stress gauge
Composition figure；Fig. 1 shows the distribution map of fixed link and natural gas line, 1 is natural gas line in figure, and 2,3,4 be fixed link,
Fixed link is installed on the active force side of natural gas line, and arrow indicates the force direction of slip mass in figure.
Fig. 2 is the installation diagram of the utility model vibratory stress gauge；Fig. 2 is vibratory stress gauge installation diagram, 5 expressions in figure
Fixed link, the usual word of fixed link are made of diameter 20mm, 25mm or 32mm steel pipe, length according to the diameter of natural gas line and
Surrounding slip mass size is determining, 3~4 times of the diameter of usual natural gas line.Vibratory stress gauge can be directly welded at fixed link
On, it can also be screwed in fixed link, direction is parallel with fixed link length direction.It is equidistant to pacify in every fixed link
Fill three vibratory stress gauges.In figure, 6,7,8 indicate vibratory stress gauge, and 6,7,8 require to be mounted on the same of fixed link 5
Direction side.
Fig. 3 is the connection figure of the utility model vibratory stress gauge；Fig. 3 is the connection of the utility model vibratory stress gauge
Figure, in figure, 2,3,4 indicate to have installed the fixed link of vibratory stress gauge, 9,10,11,12,13,14,15,16,17 in figure
Vibratory stress gauge is respectively indicated, every vibratory stress gauge is all made of cable and is connected with control cabinet, and control cabinet passes through 3G/4G/
5G with computer end control software be connected, and to control software transmission data.2, when 3,4 actual installation, it is desirable that type vibration wire stress
The direction of meter is consistent, head-on towards force direction side.
Fig. 4 is the test method figure of the corresponding soil pressure conversion coefficient of the utility model stress；Fig. 4 answers for the utility model
The test method figure of the corresponding soil pressure conversion coefficient of power, 18 indicate fixed links in figure, and 19,20,21 indicate vibratory stress gauges,
22,23,24 indicate that counterweight, counterweight usually select 500 grams.19,20,21 are fixed on 18 using welding method.18 levels are put
It is placed in soil surface, guarantees 18 each positions with ground face contact, 19,20,21 towards sky direction.In figure, 19,20,21 difference
Connect with control cabinet, control cabinet by 3G/4G/5G with computer end control software be connected, and to control software transmission data.It will
22, it 23,24 is respectively placed on 19,20,21, stands after ten minutes, read 19,20,21 pairs respectively from computer end control software
The reading a answered1、a2And a3。
Firstly, calculating a1、a2And a3Direct mutual deviation, it may be assumed that
d1,2=a1-a2, d1,3=a1-a3, d2,3=a2-a3；
Here, d1,2Indicate a1And a2Difference, d1,3Indicate a1And a3Difference, d2,3Indicate a2And a3Difference,
Secondly, calculating a1、a2And a3Middle error delta,
Δ value is judged, when in | Δ | when≤1, it can be assumed that measurement process is qualified.If | Δ | >=1, need weight
Newly measure.
Finally, calculating 22,23,24 corresponding conversion coefficient k1、k2And k3It is respectively as follows:
According to k1、k2And k3, take the corresponding soil pressure conversion coefficient k of vibratory stress gauge are as follows:
K=(k1+k2+k3)/3
After calculating conversion coefficient k, it can be directly translated into soil pressure according to the measurement data of vibratory stress gauge
Power.
Fig. 5 is the test method figure of the corresponding soil pressure conversion coefficient of the utility model stress；Fig. 5 answers for the utility model
The test method figure of the corresponding soil pressure conversion coefficient of power, 18 indicate fixed links in figure, and 19,20,21 indicate vibratory stress gauges,
22,23,24 indicate that counterweight, counterweight usually select 500 grams.19,20,21 are fixed on 18 using welding method.18 levels are put
It is placed in soil surface, guarantees 18 each positions with ground face contact, 19,20,21 backwards to sky direction.In figure, 19,20,21 difference
Connect with control cabinet, control cabinet by 3G/4G/5G with computer end control software be connected, and to control software transmission data.It will
22, it 23,24 is respectively placed on 19,20,21, stands after ten minutes, read 19,20,21 pairs respectively from computer end control software
The reading a ' answered1、a′2With a '3。
Firstly, calculating a '1、a′2With a '3Direct mutual deviation, it may be assumed that
d′1,2=a '1-a′2, d '1,3=a '1-a′3, d '2,3=a '2-a′3；
Here, d '1,2Indicate a '1With a '2Difference, d '1,3Indicate a '1With a '3Difference, d '2,3Indicate a '2With a '3Difference
Value,
Secondly, calculating a '1、a′2With a '3Middle error delta ',
Δ ' value is judged, when | Δ ' | when≤1, it can be assumed that measurement process is qualified.If | Δ ' | >=1, it needs
Re-start measurement.
Finally, when calculating 19,20,21 backwards to sky direction, 22,23,24 corresponding conversion coefficient k '1、k′2With k '3Respectively
Are as follows:
According to k '1、k′2With k '3, obtain the corresponding soil pressure conversion coefficient k ' of vibratory stress gauge are as follows:
K '=(k '1+k′2+k′3)/3
The corresponding soil pressure conversion coefficient K of string formula stress meter is further calculated according to k and k ' are as follows:
K=(k+k ')/2.
Fig. 6 is the flow chart of the utility model.
Specific embodiment
The utility model in essence content is specifically introduced with reference to the accompanying drawings and examples, but is not limited with this practical
Novel protection scope.
A kind of device and method using vibratory stress gauge measurement natural gas line surrounding soil pressure, process such as Fig. 6
It is shown, comprising the following steps:
Step 1, fixed link is selected；Fixed link generallys use the hollow or single solid steel control of diameter 20mm, 25mm or 32mm
Make, for fixing vibratory stress gauge, length is determined according to natural gas line diameter and slip mass size, length usual 4~6
Rice.
Step 2, vibratory stress gauge is connect with fixed link；Vibratory stress gauge is used to measure the variation of fixed stress in the bar,
It is usual one group of 3 type vibration wire stress, equidistant to be fixed in fixed link using welding or screw.
Step 3, vibratory stress gauge installs cable；The vibratory stress gauge being connected and fixed using cable on bar.
Step 4, the conversion coefficient K of vibratory stress gauge and soil pressure is measured；Using method described in Fig. 4 and Fig. 5, survey
Determine the conversion coefficient K of vibratory stress gauge and soil pressure.
Step 5, it drills；It is drilled using drilling machine in fixed link installation site.
Step 6, fixed link is installed；Fixed link is installed in drilling.
Step 7, control cabinet is installed；Control cabinet is installed on to the position of safety outside slip mass.
Step 8, vibratory stress gauge data acquire；It is acquired using data of the control cabinet to vibratory stress gauge.
Step 9, it is converted into soil pressure；Soil pressure is converted by vibratory stress gauge data according to conversion coefficient K in step 4
Power.
Application example
The utility model " send in river gas east " engineering in October, 2017, in middle petrochemical industry, and the town Enshi State of Hubei Province Cui Jiaba is public
Practical application is carried out in the village Long Ba and paddy field dam village intersection landslide monitoring, come down area about 0.5km*1.0km.
This project uses 9 fork group health BGK-4210 type vibratory stress gauges altogether.Select diameter 25mm hollow steel pipe as solid
Fixed pole, fixed link are 4 meters long.Three vibratory stress gauges are disposed in every fixed link, are fixed using screw fixed form.
Method according to Fig.4, measures the corresponding stress meter reading of 500g counterweight respectively are as follows:
a1=-28.8, a2=-28.6, a3=-29.0；
d1,2=a1-a2=-0.2, d1,3=a1-a3=0.2, d2,3=a2-a3=0.4；
At this point, | Δ | when≤1, it can be assumed that measurement process is qualified.
The corresponding conversion coefficient k of stress meter1、k2And k3It is respectively as follows:
Therefore, k=(k1+k2+k3)/3=-0.1736.
Method according to figure 5 measures the corresponding stress meter reading of 500g counterweight respectively are as follows:
a′1=-28.9, a '2=-28.6, a '3=-29.1；
d′1,2=a '1-a′2=-0.3, d '1,3=a '1-a′3=0.2, d '2,3=a '2-a′3=0.5；
At this point, | Δ ' | when≤1, it can be assumed that measurement process is qualified.
The corresponding conversion coefficient k ' of stress meter1、k′2With k '3It is respectively as follows:
Therefore, k '=(k '1+k′2+k′3)/3=-0.1732.
The corresponding soil pressure conversion coefficient K of string formula stress meter is further calculated according to k and k ' are as follows:
K=(k+k ')/2=(- 0.1736-0.1732)/2=-0.1734.
For the feasibility of verification method, 500g counterweight is placed on the earth pressure gauge at scene, data measured are as follows: 4.877.
The utility model measurement result are as follows: -28.8* (- 0.1734)=4.9939,
- 28.6* (- 0.1734)=4.9592,
- 29.0* (- 0.1734)=5.0286,
- 28.9* (- 0.1734)=5.0112,
- 28.6* (- 0.1734)=4.9592,
- 29.1* (- 0.1734)=5.0459；
Illustrate that the utility model is simple, uses, works well.
The effect of above-described embodiment is specifically to introduce the essentiality content of the utility model, but those skilled in the art answer
When knowing, the protection scope of the utility model should not be confined to the specific embodiment.
Claims (3)
1. a kind of device using vibratory stress gauge measurement natural gas line surrounding soil pressure, it is characterised in that: including solid
Fixed pole, vibratory stress gauge, data line and data collector；Wherein, the fixed link has multiple, in each fixed link etc.
Spacing is equipped with multiple for measuring the vibratory stress gauge of fixed link stress variation；The vibratory stress gauge and for receive vibration
The data collector of string formula stress meter data information is connected by data line.
2. the apparatus according to claim 1, it is characterised in that: fixed link is the steel pipe of 20,25 or 32mm of diameter.
3. the apparatus according to claim 1, it is characterised in that: equidistantly set 3 vibratory stress gauges in each fixed link.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468320A (en) * | 2018-05-28 | 2018-08-31 | 南京信息工程大学 | A kind of device and method measuring natural gas line surrounding soil pressure using vibratory stress gauge |
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| CN108468320A (en) * | 2018-05-28 | 2018-08-31 | 南京信息工程大学 | A kind of device and method measuring natural gas line surrounding soil pressure using vibratory stress gauge |
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Address after: 210044 No. 219 Ningliu Road, Jiangbei New District, Nanjing City, Jiangsu Province Patentee after: Nanjing University of Information Science and Technology Address before: 211500 Yuting Square, 59 Wangqiao Road, Liuhe District, Nanjing City, Jiangsu Province Patentee before: Nanjing University of Information Science and Technology |
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Granted publication date: 20190111 |