CN111780802A - Scouring monitoring system and method for buried pipeline - Google Patents
Scouring monitoring system and method for buried pipeline Download PDFInfo
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- CN111780802A CN111780802A CN202010663633.6A CN202010663633A CN111780802A CN 111780802 A CN111780802 A CN 111780802A CN 202010663633 A CN202010663633 A CN 202010663633A CN 111780802 A CN111780802 A CN 111780802A
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- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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Abstract
The application relates to a system and a method for monitoring scouring of a buried pipeline, which relate to the field of pipeline safety monitoring and comprise at least one group of monitoring components and a server; the monitoring assembly comprises an early warning piece buried in the soil layer and positioned above the pipeline, and the distance between the early warning piece and the pipeline is h 1; the early warning part is used for sending early warning information after the upper surface of the soil layer descends to the early warning part due to water flow scouring and the like, and the early warning information mainly comprises serial number data of the early warning part; the server is used for receiving the early warning information and generating an early warning event according to the early warning information, wherein the early warning event comprises the number data of the early warning piece and the receiving time of the early warning information. Finally, the worker can know the occurrence position and the occurrence time of the soil layer scouring according to the received serial number data and the received time of the early warning piece. The application improves the buried pipeline scouring monitoring effect of the long line section.
Description
Technical Field
The application relates to the field of pipeline safety monitoring, in particular to a scouring monitoring system and method for an underground pipeline.
Background
The pipeline is an indispensable material conveying facility for important systems such as natural gas, petroleum, urban heating, water supply, coal gas and the like, and has very important significance for national economic development and energy material transportation. Meanwhile, the pipeline facilities have huge investment, are mostly arranged in the pipe ditches or are buried under the ground, have certain concealment in space, if the upper layer covering soil is reduced or disappears due to water flow scouring and other reasons, further causing damages such as exposed pipes, hanging pipes, floating pipes and the like, the pipelines exposed outside the soil layer may be damaged by a third party or corroded by air, and the pipelines are difficult to find in time due to the fact that the general pipelines of the pipeline engineering are longer and are mostly in the areas with less human smoke.
The earthing scouring is a special disaster which is ubiquitous in long-distance pipelines and can directly damage the pipeline safety, is different from the instant and destructive damage caused by conventional geological disasters such as collapse, landslide and debris flow, is persistent, and usually can cause the damage of exposing pipes, suspending pipes, floating pipes and the like due to the gradual erosion of an overlying soil body of the pipeline and the damage of pipeline slope protection engineering.
Therefore, the pipeline operation and maintenance department must arrange that the patrol personnel regularly patrol along the pipeline, find that the covering soil is washed, the pipeline exposes the condition and reports in time, and the maintainer covers the soil again and restores the protection.
However, the water-damaged position is found to have defects through manual inspection: because the pipeline is often very long, especially like the pipeline of gas, oil etc. pipeline, very most is located the region that personnel are difficult to reach, even underwater, so it is generally lower to patrol and examine the frequency, and the interval time is also longer, and probably pipeline overburden has been washed out completely on somewhere, and the pipeline exposes for a long time or is surveyed the personnel of patrolling and examining after crossing river reach pipeline floating.
And the video monitoring scheme is difficult to comprehensively cover the pipeline line due to cost reasons, only video monitoring equipment can be arranged at key positions, and the underwater soil covering and scouring condition of the pipeline at the river crossing section cannot be monitored, so that the monitoring effect is poor.
And utilize satellite remote sensing or unmanned aerial vehicle scheme to receive the ageing influence, the satellite generally needs several days just can secondary coverage target area, and is easily influenced by earth's surface vegetation etc.. Unmanned aerial vehicle needs manual control, and working radius and battery continuation of the journey also are difficult to satisfy the real time monitoring of longer pipeline.
The on-way optical fiber sensing monitoring scheme is high in cost, monitoring equipment needs to be arranged on the pipeline during pipeline construction, otherwise, excavation construction needs to be carried out again, and the cost is too high.
Therefore, the problem of poor soil covering and scouring monitoring effect of the buried pipeline with the long line section needs to be solved urgently.
Disclosure of Invention
In order to improve the soil covering and scouring monitoring effect of the buried pipeline with the long line section, the application provides a scouring monitoring system and method for the buried pipeline.
In a first aspect, the present application provides a system for monitoring scour of an underground pipeline, which adopts the following technical scheme:
a scouring monitoring system for an underground pipeline comprises at least one group of monitoring components and a server side;
the monitoring assembly comprises an early warning piece buried in the soil layer and positioned above the pipeline, and the distance between the early warning piece and the pipeline is h 1; the early warning piece is used for sending early warning information after the upper surface of the soil layer descends to the early warning piece, and the early warning information comprises the serial number data of the early warning piece;
the server is used for receiving the early warning information and generating an early warning event according to the early warning information, wherein the early warning event comprises the number data of the early warning piece and the receiving time of the early warning information.
By adopting the technical scheme, the worker can know the occurrence position and the occurrence time of the soil layer scouring according to the received serial number data of the early warning piece and the receiving time of the early warning information; the early warning part is used for reminding workers in time when the upper surface of the soil layer descends to the early warning distance of the pipeline so as to implement subsequent rescue measures such as covering soil backfilling, and the early warning distance is usually h1 between the early warning part and the pipeline which needs to be controlled when the workers bury the early warning part;
moreover, the early warning piece capable of realizing the functions can be equipment with lower price, so that the early warning piece can be paved in a large range, is particularly suitable for paving long-line-segment pipelines, and can monitor the pipelines in a wider range and at longer distance; the system in the scheme is not affected by timeliness, and finally the buried pipeline flushing monitoring effect of the long line section can be improved.
Optionally, the monitoring assembly further comprises a monitoring piece buried in the soil layer and located above the pipeline, and the distance between the upper surface of the soil layer and the monitoring piece is h 2; the monitoring piece is used for sending monitoring information after the upper surface of the soil layer descends to the monitoring piece, and the monitoring information comprises the serial number data of the monitoring piece; the server is used for receiving the monitoring information and generating a monitoring event according to the monitoring information, wherein the monitoring event comprises the number data of the monitoring piece and the receiving time of the monitoring information.
By adopting the technical scheme, the worker can know the occurrence position and the occurrence time of the soil layer scouring according to the received serial number data of the monitoring piece and the receiving time of the monitoring information; the other purpose of the monitoring piece is to help obtain the average speed v of the soil layer flushed above the monitoring piece, specifically, the server calculates the intermediate time length t from the completion of the burying of the monitoring piece to the sending of the monitoring information by the monitoring piece, and then obtains the average speed v of the soil layer flushed above the monitoring piece according to the intermediate time length t and the initial h2 value, wherein v = h 2/t. The obtained average speed v of the washed soil layer can help workers to better know the hydrological data of the area.
Optionally, each group of monitoring assemblies includes a plurality of monitoring members, and the plurality of monitoring members are arranged in the vertical direction.
Through adopting above-mentioned technical scheme, can obtain more sufficient data and be used for helping the staff to know earthing and erode the condition and this position hydrology data.
Optionally, each group of monitoring assemblies includes at least two monitoring assemblies, each monitoring assembly includes a plurality of monitoring members arranged in a vertical direction, and a connection line direction of the monitoring assemblies is perpendicular to an extending direction of the pipeline.
By adopting the technical scheme, when the system is applied to monitoring of pipeline slope surface scouring, the slope collapse can be caused by water flow scouring, and a fracture surface of nearly ninety degrees is formed, and under the condition, the system in the embodiment 1 has the problem that the monitoring part and the early warning part are positioned right above the pipeline and can not be monitored; in the embodiment, because the two groups of monitoring groups are arranged on the two sides of the pipeline, the change of the soil layer around the pipeline can be monitored in a wider range, so that more powerful guarantee is provided for the operation and maintenance of the pipeline.
Optionally, the monitoring assemblies are provided with a plurality of groups, and the plurality of groups of monitoring assemblies are sequentially arranged along the length direction of the pipeline; and an early warning accessory is also arranged between every two adjacent groups of monitoring assemblies and is also positioned above the pipeline.
Through adopting above-mentioned technical scheme, the purpose that sets up the early warning accessory is, and the early warning scope of pipeline length direction is followed in the increase, and help the staff knows the condition around the pipeline more timely, more comprehensively.
In a second aspect, the application provides a method for monitoring the erosion of the soil covering of the buried pipeline, which adopts the following technical scheme:
a method of soil brush monitoring for an underground pipeline, the method comprising:
s1, embedding at least one group of monitoring assemblies above the pipeline embedded in the soil layer, wherein each group of monitoring assemblies comprises early warning elements with a distance h1 from the pipeline;
s2, the early warning piece monitors whether the upper surface of the soil layer descends to the early warning piece, if the early warning piece monitors that the upper surface of the soil layer descends to the early warning piece, the early warning piece sends early warning information, and the early warning information comprises serial number data of the early warning piece;
and S3, the server receives the early warning information and generates an early warning event according to the early warning information, wherein the early warning event comprises the number data of the early warning piece and the receiving time of the early warning information.
Optionally, in S1, at least two groups of monitoring assemblies are provided, each monitoring assembly further includes a monitoring piece buried in the soil layer and located above the pipeline, and the distance between the upper surface of the soil layer and the monitoring piece is h 2; the method further comprises the following steps:
s4, the monitoring piece monitors whether the upper surface of the soil layer descends to the monitoring piece, if the monitoring piece monitors that the upper surface of the soil layer descends to the monitoring piece, the monitoring piece sends monitoring information, and the monitoring information comprises the serial number data of the monitoring piece and the receiving time of the monitoring information;
and S5, the server side judges whether the monitoring pieces in the two adjacent groups of monitoring assemblies send monitoring information, if so, an event to be verified is generated, and the event to be verified comprises the number data of the monitoring pieces in the two adjacent groups of monitoring assemblies.
Optionally, in S1, each group of monitoring assemblies includes a plurality of monitoring pieces, the monitoring pieces are sequentially arranged in the vertical direction, and a distance between the upper surface of the soil layer and the monitoring piece at the uppermost end is h 2; the method further comprises the following steps:
s6, the server side obtains a descending parameter a corresponding to each group of monitoring assemblies and a distance b between two adjacent groups of monitoring assemblies, wherein the descending parameter a is a distance between the monitoring assembly at the lowest end, which has sent monitoring information, in each group of monitoring assemblies and the upper surface of the initial soil layer;
and S7, the server calculates and obtains backfill position information according to the respective descending parameters a of the two adjacent groups of monitoring assemblies and the distance b between the two adjacent groups of monitoring assemblies, and the backfill position information at least describes the position above the pipeline, which is most needed to be covered with soil and backfilled and is located between the two adjacent groups of monitoring assemblies.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the early warning piece in the scheme can remind workers in time so as to implement subsequent earth covering backfill or engineering treatment measures, and the early warning piece capable of achieving the functions can be selected from equipment with lower price, so that the early warning piece can be paved in a large range, is particularly suitable for long-line pipeline pavement, and can be used for directly monitoring the pipeline in a larger range and in a longer distance; the system in the scheme is not affected by timeliness, and finally the soil covering and scouring monitoring effect of the buried pipeline of the long line section can be improved;
2. according to a plurality of monitoring pieces of vertical arrangement, managers can learn the pipeline earthing and erode the condition dynamically, to the erodeing of different degrees, take different counter measures.
3. The monitoring part in the scheme is used for helping to obtain the average speed v of the soil layer scoured above the monitoring part, and the obtained average speed v of the soil layer scoured can help workers to better know the hydrological data of the region, and especially when a plurality of monitoring parts are arranged in each group of monitoring components, the hydrological data of the region can be obtained more thoroughly and accurately.
Drawings
Fig. 1 is a schematic diagram of a system for monitoring earth casing erosion of an underground pipeline according to a first embodiment of the present application;
FIG. 2 is a schematic view of the early warning or monitoring member of FIG. 1;
FIG. 3 is a schematic diagram of a system for monitoring earth casing erosion in a buried pipeline according to the second embodiment of the present application;
FIG. 4 is a schematic diagram of a system for monitoring casing wash of a buried pipeline according to a third embodiment of the present application;
fig. 5 is a schematic structural view of an early warning part or a monitoring part according to a fourth embodiment of the present application;
fig. 6 is a schematic structural view of an early warning part or a monitoring part according to a sixth embodiment of the present application.
Description of reference numerals: 1. a monitoring component; 2. a monitoring group; 21. a monitoring member; 22. an early warning piece; 23. a float tank section; 24. a counterweight portion; 25. a pressure sensor; 26. a signal transmitter; 27. early warning auxiliary parts; 3. a server side; 4. a pipeline; 5. a soil layer; 6. a power supply unit.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a system for monitoring scouring of an underground pipeline,
example 1:
referring to fig. 1, the system comprises a plurality of groups of monitoring assemblies 1 and a server 3 in communication connection with the monitoring assemblies 1; the multiple groups of monitoring assemblies 1 are buried in the soil layer 5 and located above the pipeline 4, and the multiple groups of monitoring assemblies 1 are sequentially arranged along the length direction of the pipeline 4. It should be noted that, a plurality of groups of monitoring assemblies 1 do not need to be arranged right above the pipeline 4, so that the influence of construction on the pipeline 4 is worried about, and the monitoring assemblies 1 need to be arranged to be capable of deviating properly and be arranged on one side or two sides of the pipeline 4; or the monitoring assembly 1 can be arranged on one side of the direction of water flow for earlier problem finding.
The monitoring assembly 1 comprises a plurality of monitoring pieces 21 and early warning pieces 22, the monitoring pieces 21 are arranged in sequence in the vertical direction, and the early warning pieces 22 are positioned below the monitoring pieces 21; after the monitoring piece 21 is buried, the distance between the upper surface of the soil layer 5 and the gravity center of the monitoring piece 21 is h2, the distance between the gravity center of the early warning piece 22 and the upper surface of the pipeline 4 is h1, namely, the buried monitoring piece 21 takes the upper surface of the soil layer 5 as a reference, and the buried early warning piece 22 takes the pipeline 4 as a reference.
The monitoring piece 21 is used for sending monitoring information after the upper surface of the soil layer 5 is washed and descends to the monitoring piece 21, and the monitoring information comprises the serial number data of the monitoring piece 21; the server 3 is used for receiving the monitoring information and generating a monitoring event according to the monitoring information, wherein the monitoring event comprises the number data of the monitoring part 21 and the receiving time of the early warning information; the corresponding numbers of each monitoring member 21 are inconsistent and are pre-recorded in the server 3.
The early warning part 22 is used for sending out early warning information after the upper surface of the soil layer 5 is washed and descends to the early warning part 22, and the early warning information comprises the serial number data of the early warning part 22; the server 3 is used for receiving the early warning information and generating an early warning event according to the early warning information, wherein the early warning event comprises the number data of the early warning part 22 and the receiving time of the monitoring information; the corresponding numbers of each early warning part 22 are inconsistent and are pre-recorded in the server 3.
It should be noted that the purpose of the monitoring element 21 is to facilitate the worker to know the depth of the soil layer 5 being washed in time; on the other hand, the average speed v of the soil layer 5 above the monitoring element 21 is obtained, specifically, the server 3 calculates an intermediate time duration t from the completion of the burying of the monitoring element 21 to the sending of the monitoring information by the monitoring element 21, and then obtains the average speed v of the soil layer 5 above the monitoring element 21, where v = h2/t, according to the intermediate time duration t and the initial h2 value. The obtained average speed v of the washed soil layer 5 can help workers to better understand the hydrological data of the area, and particularly when a plurality of monitoring elements 21 are arranged in each group of monitoring assemblies 1, the hydrological data of the area can be obtained more thoroughly and accurately.
Another point is that the warning member 22 is provided to remind the operator in time when the upper surface of the soil layer 5 descends to the warning distance of the pipeline 4, which is usually the distance h1 between the warning member 22 and the pipeline 4 to be controlled when the operator buries the warning member 22, so as to facilitate the subsequent earth covering backfill.
It should be noted that, referring to fig. 2, the monitoring part 21 and the warning part 22 have the same structure, and both include a buoyancy tank part 23 and a counterweight part 24, and the counterweight part 24 is provided, so as to realize the counterweight of the monitoring part 21 and the warning part 22: making the bulk density less than the density of water; the counterweight part 24 is fixed below the buoyancy tank part 23, the top end of the buoyancy tank part 23 is provided with a pressure sensor 25, and the buoyancy tank part 23 is also provided with a signal transmitter 26; of course, in all embodiments of the present disclosure, the warning part 22 or the monitoring part 21 is not limited to realize the counterweight by providing the counterweight part 24, and components inside the warning part 22 or the monitoring part 21 may be used as objects for counterweight, so as to finally achieve the density that the overall density is smaller than that of water.
When the system is applied to river channel scouring monitoring, when the upper surface of the soil layer 5 descends to the monitoring part 21 or the early warning part 22, because the sum of the downward pressure of the soil layer 5 and the gravity of the soil layer is smaller than the buoyancy force borne by the soil layer, the monitoring part 21 or the early warning part 22 floats to the water surface, the external extrusion force monitored by the pressure sensor 25 is smaller than a preset value, and the signal transmitter 26 sends monitoring information or early warning information;
when the system is applied to slope scouring monitoring, similarly, when the upper surface of the soil layer 5 descends to the monitoring part 21 or the early warning part 22, the upper end of the buoyancy tank part 23 is exposed, and the external extrusion force monitored by the pressure sensor 25 is smaller than a preset value, the signal transmitter 26 sends monitoring information or early warning information.
The implementation principle of the embodiment 1 is as follows: the system is suitable for the pipeline 4 which is embedded in the soil layer 5, and also suitable for being embedded with the pipeline 4; the pipe burying device is suitable for common dry land underground pipe burying, is also suitable for river crossing underwater pipe burying and is also suitable for slope surface pipe burying; the system can actively and timely remind workers to carry out soil covering and backfilling after the upper surface of the soil layer 5 is washed to the position of the early warning part 22, so that the probability that the pipeline 4 is damaged by water is reduced, and the washing monitoring effect of the pipeline 4 is improved.
And this system also can be washed to monitoring 21 back in the upper surface of soil layer 5, in time sends monitoring information to server 3 to make things convenient for the staff to know the degree of depth that soil layer 5 was washed and know the hydrology data in this region.
Example 2:
referring to fig. 3, the present embodiment is different from embodiment 1 in that each monitoring assembly 1 includes at least two rows of monitoring element groups 2, in the present embodiment, each monitoring element group 2 includes a plurality of monitoring elements 21 arranged in a vertical direction, a connection line direction of the two rows of monitoring element groups 2 is perpendicular to an extending direction of the pipeline 4, and the two rows of monitoring element groups 2 are located above two sides of the pipeline 4.
The implementation principle of the embodiment 2 is as follows: when the system is used for monitoring water damage of the side slope, the side slope can be collapsed due to water flow scouring, and a fracture surface of nearly ninety degrees is formed, in this case, the system in the embodiment 1 has the problem that the monitoring part 21 and the early warning part 22 are positioned right above the pipeline 4 and can not be monitored; in the embodiment, because the two monitoring groups 2 are arranged on the two sides of the pipeline 4, the soil layer 5 around the pipeline 4 can be monitored in a wider range, so that a more powerful guarantee is provided for the operation and maintenance of the pipeline 4.
Example 3:
referring to fig. 4, the present embodiment is different from embodiment 1 in that an early warning sub-element 27 is further disposed between two adjacent sets of monitoring assemblies 1, and the early warning sub-element 27 is also located above the pipeline 4. The early warning sub-part 27 is identical in structure to the early warning part 22, and the burying distance between the early warning sub-part 27 and the pipeline 4 is also identical to the burying distance between the early warning part 22 and the pipeline 4.
The implementation principle of the embodiment 3 is as follows: the purpose of setting up early warning accessory 27 is, the increase is along pipeline 4 length direction's early warning scope, helps the staff more timely, more comprehensive know the pipeline 4 circumstances around.
Example 4:
referring to fig. 5, the difference between this embodiment and embodiment 1 is that the specific implementation manner of triggering the warning component 22 or the monitoring component 21 to send out the warning information or the monitoring information is different, specifically:
in this embodiment, the float box part 23 is provided with a signal transmitter 26 and a power supply part 6 for supplying power to the signal transmitter 26, a reed switch 7 is connected between the power supply part 6 and the signal transmitter 26, and the float box part 23 is provided with a magnetic member 71 matched with the reed switch 7; when the buoyancy tank 23 floats to the water surface, the magnetic member 71 abuts against the reed switch 7 to turn on the main power supply circuit of the power supply unit 6, and the power supply unit 6 starts to supply power to the signal transmitter 26; through the arrangement, electric energy can be saved, and the signal transmitter 26 only consumes power when the buoyancy tank part 23 floats on the water surface, so that the service life of the early warning part or the monitoring part is prolonged.
A monitoring pipe 72 is arranged at the top end of the floating box part 23, the lower end of the monitoring pipe 72 is closed, the upper end of the monitoring pipe 72 is communicated with the outside, a piston 73 is arranged in the monitoring pipe 72 in a sliding mode, a magnetic reed switch 7 is arranged on the piston 73, and a magnetic part 71 is embedded in the inner wall of the monitoring pipe 72; when the float box part 23 is buried in the soil 5, the outside pressure of the float box part 23 is high, the piston 73 is positioned at the bottom of the monitoring pipe 72, when the float box part 23 floats on the water, the outside pressure of the float box part 23 is low, and the piston 73 slides outwards to the magnetic part 71 and contacts with the magnetic part 71, so that the magnetic reed switch 7 is closed.
The implementation principle of the embodiment 4 is as follows: compared with the scheme in the embodiment 1, the power supply part 6 starts to supply power to the signal transmitter 26 only when the buoyancy tank part 23 floats on the water surface, so that the electric energy can be saved, and the service life of the early warning part 22 or the monitoring part 21 is prolonged.
Example 5: in this embodiment, based on any one of embodiment 1 or embodiment 4, the signal transmitter 26 includes an NB-IOT transmitting module, an NB card connected to the NB-IOT transmitting module, and an MCU module configured to control the NB-IOT transmitting module to periodically transmit detection information to the platform;
the implementation principle of the embodiment 5 is as follows: based on embodiment 4, for example, when the warning device 22 or the monitoring device 21 floats to the water surface, the power supply unit 6 starts to supply power to the signal transmitter 26, triggers the NB-IOT transmitting module to wake up, and transmits the warning information or the monitoring information to the designated server information platform through the NB card, the NB-IOT transmitting module and the corresponding telecommunication base station.
Example 6:
referring to fig. 6, the difference between this embodiment and embodiment 1 is that the specific implementation manner of triggering the warning component 22 or the monitoring component 21 to send out the warning information or the monitoring information is different, specifically:
in this embodiment, a positioning module, a comparison module and a signal transmitter 26 are arranged in the buoyancy tank part 23, and the positioning module can be a big dipper module or a GPS module and is used for receiving satellite signals in real time and calculating longitude, latitude and height information of the positioning module;
the comparison module is used for acquiring the longitude and latitude and height information calculated by the positioning module and comparing the longitude and latitude and height information with the longitude and latitude and height information preset by the comparison module; when the comparison result is inconsistent, the upper surface of the soil layer 5 is lowered to the position of the early warning piece 22 or the monitoring piece 21, and the early warning piece 22 or the monitoring piece 21 starts to float upwards, at this time, the signal transmitter 26 connected with the comparison module sends out early warning information or monitoring information.
The implementation principle of the embodiment 6 is as follows: another specific implementation manner for triggering the early warning component 22 or the monitoring component 21 to send out early warning information or monitoring information is disclosed.
The embodiment of the application also discloses a scouring monitoring method for the buried pipeline,
the method comprises the following steps:
s1, embedding a plurality of groups of monitoring assemblies 1 above the pipeline 4 embedded in the soil layer 5, wherein each group of monitoring assemblies 1 comprises an early warning piece 22 and a plurality of monitoring pieces 21 which are spaced from the upper surface of the pipeline 4 by h1, the monitoring pieces 21 are sequentially arranged in the vertical direction, and the distance between the upper surface of the soil layer 5 and the gravity center of the uppermost monitoring piece 21 is h 2;
s2, the early warning piece 22 monitors whether the upper surface of the soil layer 5 descends to the position of the early warning piece 22, if the early warning piece 22 monitors that the upper surface of the soil layer 5 descends to the position of the early warning piece 22, the early warning piece 22 sends early warning information, and the early warning information comprises the serial number data of the early warning piece 22 and the receiving time of the early warning information;
specifically, the early warning member 22 comprises a buoyancy tank part 23 and a counterweight part 24, the counterweight part 24 is fixed below the buoyancy tank part 23, a pressure sensor 25 is installed at the top end of the buoyancy tank part 23, and a signal transmitter 26 is also installed on the buoyancy tank part 23; when the upper surface of the soil layer 5 descends to the early warning part 22, and the external extrusion force monitored by the pressure sensor 25 at the top end of the floating box part 23 is smaller than a preset value, the signal transmitter 26 sends out early warning information;
s3, the server 3 receives the early warning information and generates an early warning event according to the early warning information, wherein the early warning event comprises the serial number data of the early warning record 22;
s4, monitoring whether the upper surface of the soil layer 5 descends to the monitoring part 21 by the monitoring part 21, if the monitoring part 21 monitors that the upper surface of the soil layer 5 descends to the monitoring part 21, sending monitoring information by the monitoring part 21, wherein the monitoring information comprises the number data of the monitoring part 21 and the receiving time of the monitoring information;
specifically, the monitoring member 21 also comprises a buoyancy tank part 23 and a counterweight part 24, the counterweight part 24 is fixed below the buoyancy tank part 23, the top end of the buoyancy tank part 23 is provided with a pressure sensor 25, and the buoyancy tank part 23 is also provided with a signal transmitter 26; when the upper surface of the soil layer 5 descends to the monitoring part 21, the external extrusion force monitored by the pressure sensor 25 at the top end of the buoyancy tank part 23 is smaller than a preset value, and the signal transmitter 26 sends monitoring information.
Note that the process of step S4 is executed after step S1 and before step S2.
Optionally, the method further includes:
s5, the server 3 judges whether the monitoring pieces 21 in the two adjacent groups of monitoring assemblies 1 have sent monitoring information, if so, an event to be verified is generated, and the event to be verified comprises recording the number data of the monitoring pieces 21 in the two adjacent groups of monitoring assemblies 1.
Specifically, when the upper surface of the soil layer 5 has descended below all the monitoring members 21 in a certain group of monitoring assemblies 1, it indicates that all the monitoring members 21 in the group of monitoring assemblies 1 have sent monitoring information; when all the monitoring members 21 in two adjacent groups of monitoring assemblies 1 have sent monitoring information, there is a possibility that the soil layer 5 between the two groups of monitoring assemblies 1 has been washed to a position threatening the pipeline 4, even if the early warning members 22 in the two groups of monitoring assemblies 1 have not sent early warning information. In the method, the step S5 is further included, so that when the above situation occurs, the server 3 can generate an event to be verified in time to remind a worker to go to the field verification in time, so as to reduce the probability of damage to the pipeline 4.
Optionally, the method further includes:
s6, the server 3 obtains a descending parameter a corresponding to each group of monitoring assemblies 1 and a distance b between two adjacent groups of monitoring assemblies 1, wherein the descending parameter a is a distance between the monitoring piece 21 at the lowest end, which has sent monitoring information, in each group of monitoring assemblies 1 and the upper surface of the initial soil layer 5;
and S7, the server 3 calculates and obtains backfill position information according to the respective descending parameters a of the two adjacent groups of monitoring assemblies 1 and the distance b between the two adjacent groups of monitoring assemblies 1, wherein the backfill position information at least describes the position above the pipeline 4, which is most needed to be covered with soil and backfilled and is located between the two adjacent groups of monitoring assemblies 1.
It should be noted that the above steps S6 to S7 are to realize the following processes: the flushing monitoring information of the section of the pipeline 4 which is not positioned beside the monitoring components 1 is convenient for workers to know, and comprises positions which are positioned between two adjacent groups of monitoring components 1 and are most likely to be subjected to water damage and the early warning distance of whether the water damage positions are descended to the pipeline 4 or not; besides the above steps, the process may be implemented in other ways, and the embodiment of the present application is not limited to a specific way.
The determination of the location where water damage is most likely to occur is calculated as:
the formula for determining whether the water damage position has fallen to the early warning distance of the pipeline 4 is:
The embodiment of the application provides a system and a method for monitoring scouring of a buried pipeline 4, and the scouring monitoring effect of the buried pipeline 4 of a long line segment is improved. The embodiment of the system and the method for monitoring the scouring of the underground pipeline 4 provided by the above embodiment belongs to the same concept, and the specific implementation process is described in detail in the embodiment of the method, which is not described herein again.
It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A scour monitoring system for an underground pipeline, comprising at least one set of monitoring modules (1) and a server (3);
the monitoring assembly (1) comprises an early warning piece (22) which is buried in a soil layer (5) and is positioned above the pipeline (4), and the distance between the early warning piece (22) and the pipeline (4) is h 1; the early warning part (22) is used for sending early warning information after the upper surface of the soil layer (5) descends to the early warning part (22), and the early warning information comprises serial number data of the early warning part (22);
the server (3) is used for receiving the early warning information and generating an early warning event according to the early warning information, wherein the early warning event comprises the number data of the early warning piece (22) and the receiving time of the early warning information.
2. A scour monitoring system for an underground pipeline according to claim 1, wherein the monitoring assembly (1) further comprises a monitoring member (21) embedded in the earth (5) above the pipeline (4), the upper surface of the earth (5) being spaced apart from the monitoring member (21) by a distance h 2; the monitoring piece (21) is used for sending monitoring information after the upper surface of the soil layer (5) descends to the monitoring piece (21), and the monitoring information comprises the serial number data of the monitoring piece (21); the server (3) is used for receiving the monitoring information and generating a monitoring event according to the monitoring information, wherein the monitoring event comprises the number data of the monitoring piece (21) and the receiving time of the monitoring information.
3. A scour monitoring system for an underground pipeline according to claim 2, wherein each set of monitoring assemblies (1) comprises a plurality of monitoring members (21), and the plurality of monitoring members (21) are arranged in a vertical direction.
4. A washout monitoring system for an underground pipeline according to claim 2, wherein each group of monitoring units (1) comprises at least two rows of monitoring units (2), each row of monitoring units (2) comprises a plurality of monitoring units (21) arranged in a vertical direction, and a connecting line of the monitoring units (2) in a plurality of rows is perpendicular to the extending direction of the pipeline (4).
5. A scour monitoring system for an underground pipeline according to claim 2, wherein the monitoring assemblies (1) are provided in groups, and the groups of monitoring assemblies (1) are arranged in sequence along the length of the pipeline (4); still be equipped with early warning accessory (27) between two sets of adjacent monitoring subassembly (1), and early warning accessory (27) also are located pipeline (4) top.
6. A method of scour monitoring for an underground conduit, the method comprising:
s1, embedding at least one group of monitoring assemblies (1) above the pipeline (4) embedded in the soil layer (5), wherein each group of monitoring assemblies (1) comprises early warning pieces (22) which are spaced from the pipeline (4) by h 1;
s2, the early warning piece (22) monitors whether the upper surface of the soil layer (5) descends to the position of the early warning piece (22), if the early warning piece (22) monitors that the upper surface of the soil layer (5) descends to the position of the early warning piece (22), the early warning piece (22) sends early warning information, and the early warning information comprises serial number data of the early warning piece (22);
s3, the server (3) receives the early warning information and generates an early warning event according to the early warning information, wherein the early warning event comprises serial number data of the early warning piece (22).
7. A scour monitoring method for an underground pipeline according to claim 6, wherein in S1, there are at least two groups of monitoring units (1), the monitoring units (1) further comprise monitoring members (21) buried in the soil layer (5) and located above the pipeline (4), the upper surface of the soil layer (5) is spaced apart from the monitoring members (21) by a distance h 2; the method further comprises the following steps:
s4, the monitoring piece (21) monitors whether the upper surface of the soil layer (5) descends to the position of the monitoring piece (21), if the monitoring piece (21) monitors that the upper surface of the soil layer (5) descends to the position of the monitoring piece (21), the monitoring piece (21) sends monitoring information, and the monitoring information comprises the number data of the monitoring piece (21);
s5, the server (3) judges whether the monitoring pieces (21) in the two adjacent groups of monitoring assemblies (1) have sent monitoring information, if so, an event to be verified is generated, and the event to be verified comprises recording number data of the monitoring pieces (21) in the two adjacent groups of monitoring assemblies (1).
8. A scour monitoring method for an underground pipeline according to claim 7, wherein in S1, each group of the monitoring units (1) comprises a plurality of monitoring members (21), the monitoring members (21) are arranged in sequence along the vertical direction, the distance between the upper surface of the soil layer (5) and the uppermost monitoring member (21) is h 2; the method further comprises the following steps:
s6, the server (3) acquires a descending parameter a corresponding to each group of monitoring assemblies (1) and a distance b between two adjacent groups of monitoring assemblies (1), wherein the descending parameter a is a distance between a lowest monitoring piece (21) which has sent monitoring information in each group of monitoring assemblies (1) and the upper surface of an initial soil layer (5);
s7, the server (3) calculates and obtains backfill position information according to the respective descending parameters a of the two adjacent groups of monitoring assemblies (1) and the distance b between the two adjacent groups of monitoring assemblies (1), and the backfill position information at least describes the position above the pipeline (4) which is most needed to be covered with soil and backfilled and is located between the two adjacent groups of monitoring assemblies (1).
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