CN112747715A - Pipeline deformation monitoring method - Google Patents
Pipeline deformation monitoring method Download PDFInfo
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- CN112747715A CN112747715A CN202011597930.1A CN202011597930A CN112747715A CN 112747715 A CN112747715 A CN 112747715A CN 202011597930 A CN202011597930 A CN 202011597930A CN 112747715 A CN112747715 A CN 112747715A
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- 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
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Abstract
The invention discloses a pipeline deformation monitoring method, which belongs to the technical field of underground pipeline monitoring and comprises four steps of measuring point arrangement, measuring point burying, deformation measurement and measured data arrangement and analysis, wherein an underground closed pipeline adopts hoop type buried points in the step operation, an indirect measurement method adopts an intuitive (conventional) measurement method for operation, the measurement result is strong in intuition and high in precision, the deformation condition of the pipeline can be accurately reflected, the measured data can be conveniently and timely processed and integrated by matching a drawing method and a modeling method, the deformation degree and the deformation rule of the pipeline are further obtained, the construction and the construction speed are further effectively guided, corresponding effective control measures are adopted in the construction, and the normal operation of the construction and the pipeline is ensured.
Description
Technical Field
The invention belongs to the technical field of underground pipeline monitoring, and particularly relates to a pipeline deformation monitoring method.
Background
Along with the rapid development of the modern construction of cities, various super-large and super-high-rise buildings are more and more, building groups are more and more dense, and various pipelines buried underground in urban areas are greatly increased and more complicated under the same area. The foundation construction period of building such as loading prepressing, pile sinking, groundwater reduction and the like can have certain influence on the surrounding environment and terrain, so that the safety of the surrounding underground pipelines is damaged, the normal use of the pipelines is influenced, and once the pipelines are damaged due to deformation, serious consequences can be caused frequently.
Therefore, in order to ensure the stability and safety of the structure and the surrounding area of the structure and the interval structure during the construction of the shield tunnel, deformation monitoring needs to be carried out on pipelines along the tunnel in real time, then the safety of the pipelines is evaluated by means of the existing control standard, so that the influence degree of engineering construction on the ground surface and underground pipelines is known, the construction speed is effectively guided and controlled, and corresponding effective control measures are taken during construction to ensure the normal operation of the construction and the pipelines.
Disclosure of Invention
The present invention is directed to a method for monitoring pipeline deformation, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the pipeline deformation monitoring method comprises the following steps:
(1) and (3) measuring point arrangement: measuring points are arranged on the pipeline affected by construction according to the point arrangement position of a monitoring design drawing, and monitoring points are arranged along the pipeline, wherein the underground pipelines are dense, criss-cross, heavy pipelines and pipeline joints;
during operation, a total station is used for accurately positioning a ground monitoring point position according to a ground lead along a line, and a datum point and a working base point are laid in a monitoring area;
(2) burying a measuring point: the method comprises the following steps of monitoring a pipeline on a point position, adopting an anchor ear type embedding point, drilling a hole with the diameter of 140mm by using a drilling tool on the point position to be embedded, stopping drilling until an original soil layer is reached, then arranging a protective barrel with the same size in the hole, putting a reinforcing steel bar with the length of 20mm and determined according to the drilling depth into the hole, keeping the round surface of the top end of the reinforcing steel bar slightly exposed to the ground for 5-10 mm, and filling the periphery of the reinforcing steel bar with quick-setting mortar or jelly;
when the measuring points are buried, the positions of pipelines are required to be accurately investigated and verified, and the measuring points are ensured to accurately reflect the deformation of the pipelines;
(3) and (3) deformation measurement: the pipeline settlement observation is carried out according to a geometric leveling method, a DS01 level is used for observation, the observation only needs to be carried out for one way by adopting a closed leveling route, the reciprocating observation is carried out by adopting a mode of conforming to the leveling route, and the adjustment is carried out by taking the number of height differences observed twice;
(4) and (3) sorting and analyzing the measured data, and timely processing and integrating the measured data every day by a drawing method and a model method so as to obtain the deformation degree and rule of the pipeline.
Further, the pipeline settlement observation in the step (3) adopts an observation sequence conforming to the form of the leveling route, wherein the forward measurement is back, front and back, and the reverse measurement is front, back and front.
Further, the datum points in the step (2) are established in a stable and flat section, and the number of the datum points in each independent monitoring area is not less than 3.
Further, the drilling tool in the step (2) is a water drill and/or a Luoyang shovel.
Further, the distance between adjacent monitoring points in the extension direction of the pipeline is 5-15 m.
Furthermore, the measuring points on the monitoring point positions are buried in a firmer undisturbed stratum, and the depth of the measuring points in the original soil layer is not less than 0.2 m.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the underground closed pipeline adopts hoop type embedded points, an indirect measurement method is operated by adopting an intuitive (conventional) measurement method, the measurement result is strong in intuition and high in precision, the deformation condition of the pipeline can be accurately reflected, and the measured data can be conveniently and timely processed and integrated by matching a drawing method and a modeling method, so that the deformation degree and the deformation rule of the pipeline can be further obtained, the construction can be effectively guided and the construction speed can be controlled, and corresponding effective control measures can be taken in the construction process, so that the construction and the normal operation of the pipeline can be ensured.
Drawings
FIG. 1 is a schematic diagram of the arrangement of pipeline measuring points in the pipeline deformation monitoring method of the present invention.
In the figure: 1. hooping; 2. round surface; 3. reinforcing steel bars; 4. and protecting the barrel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the pipeline deformation monitoring method comprises the following steps:
(1) and (3) measuring point arrangement: measuring points are arranged on the pipeline affected by construction according to the point arrangement position of a monitoring design drawing, and monitoring points are arranged along the pipeline, wherein the underground pipelines are dense, criss-cross, heavy pipelines and pipeline joints;
during operation, a total station is used for accurately positioning a ground monitoring point position according to a ground lead along a line, and a datum point and a working base point are laid in a monitoring area;
(2) burying a measuring point: the pipeline on the monitoring point location adopts a hoop type embedded point, a drilling tool is used for drilling a phi 140mm on the point location to be embedded, the drilling is stopped after the point location is drilled to an original soil layer, then a protective barrel 4 with the same size as the original soil layer is arranged in the hole, a steel bar 3 with the length of phi 20mm determined according to the drilling depth is placed in the hole, the round surface 2 at the top end of the steel bar 3 is kept slightly exposed to the ground by 5 mm-10 mm, and the periphery of the steel bar 3 is filled with quick-setting mortar or jelly; the peripheral cover of pipeline of monitoring position is equipped with staple bolt 1 to play the supporting role to reinforcing bar 3, avoid reinforcing bar 3 to take place to sideslip, the influence is to the monitoring accuracy of pipeline.
When the measuring points are buried, the positions of pipelines are required to be accurately investigated and verified, and the measuring points are ensured to accurately reflect the deformation of the pipelines;
(3) and (3) deformation measurement: the pipeline settlement observation is carried out according to a geometric leveling method, a DS01 level is used for observation, the observation only needs to be carried out for one way by adopting a closed leveling route, the reciprocating observation is carried out by adopting a mode of conforming to the leveling route, and the adjustment is carried out by taking the number of height differences observed twice;
(4) and (3) sorting and analyzing the measured data, and timely processing and integrating the measured data every day by a drawing method and a model method so as to obtain the deformation degree and rule of the pipeline.
Wherein, the pipeline settlement observation in the step (3) adopts the observation sequence conforming to the form of the leveling route, wherein the forward measurement is back, front and back, and the reverse measurement is front, back and front.
Wherein, the reference points in the step (2) are set in a stable and flat section, and the number of the reference points in each independent monitoring area is not less than 3.
Wherein, the drilling tool in the step (2) is a rhinestone and/or a Luoyang shovel. A Luoyang shovel is adopted in the land, a rhinestone is adopted in the asphalt and cement road surface, and the Luoyang shovel and the rhinestone can be matched for drilling in the regions with unobvious ground condition distinction.
Wherein, the distance between the adjacent monitoring point positions in the extension direction of the pipeline is 5-15 m.
Wherein, the measuring points on the monitoring points are buried in a firmer undisturbed stratum, and the depth in the original soil layer is not less than 0.2 m.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The pipeline deformation monitoring method is characterized by comprising the following steps:
(1) and (3) measuring point arrangement: measuring points are arranged on the pipeline affected by construction according to the point arrangement position of a monitoring design drawing, and monitoring points are arranged along the pipeline, wherein the underground pipelines are dense, criss-cross, heavy pipelines and pipeline joints;
during operation, a total station is used for accurately positioning a ground monitoring point position according to a ground lead along a line, and a datum point and a working base point are laid in a monitoring area;
(2) burying a measuring point: the method comprises the following steps of monitoring a pipeline on a point position, adopting an anchor ear type embedding point, drilling a hole with the diameter of 140mm by using a drilling tool on the point position to be embedded, stopping drilling until an original soil layer is reached, then arranging a protective barrel with the same size in the hole, putting a reinforcing steel bar with the length of 20mm and determined according to the drilling depth into the hole, keeping the round surface of the top end of the reinforcing steel bar slightly exposed to the ground for 5-10 mm, and filling the periphery of the reinforcing steel bar with quick-setting mortar or jelly;
when the measuring points are buried, the positions of pipelines are required to be accurately investigated and verified, and the measuring points are ensured to accurately reflect the deformation of the pipelines;
(3) and (3) deformation measurement: the pipeline settlement observation is carried out according to a geometric leveling method, a DS01 level is used for observation, the observation only needs to be carried out for one way by adopting a closed leveling route, the reciprocating observation is carried out by adopting a mode of conforming to the leveling route, and the adjustment is carried out by taking the number of height differences observed twice;
(4) and (3) sorting and analyzing the measured data, and timely processing and integrating the measured data every day by a drawing method and a model method so as to obtain the deformation degree and rule of the pipeline.
2. The method of monitoring pipeline deformation of claim 1, wherein: and (3) observing the pipeline settlement in the step (3) by adopting an observation sequence conforming to the form of the leveling route, wherein the forward measurement is back, front and back, and the reverse measurement is front, back and front.
3. The method of monitoring pipeline deformation of claim 1, wherein: the reference points in the step (2) are set in a stable and flat section, and the number of the reference points in each independent monitoring area is not less than 3.
4. The method of monitoring pipeline deformation of claim 1, wherein: before drilling by using a drilling tool in the step (2), the existence of other pipelines is determined so as to ensure the burying safety.
5. Method for monitoring the deformation of a pipeline according to claim 1 or 4, characterized in that: and (3) in the step (2), the drilling tool is a water drill and/or a Luoyang shovel.
6. The method of monitoring pipeline deformation of claim 1, wherein: the distance between adjacent monitoring points in the extension direction of the pipeline is 5-15 m.
7. The method of monitoring pipeline deformation of claim 1, wherein: the measuring points on the monitoring point positions are buried in a firmer undisturbed stratum, and the depth of the measuring points in the original soil layer is not less than 0.2 m.
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| CN202011597930.1A CN112747715A (en) | 2020-12-29 | 2020-12-29 | Pipeline deformation monitoring method |
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| CN202011597930.1A CN112747715A (en) | 2020-12-29 | 2020-12-29 | Pipeline deformation monitoring method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878980A (en) * | 2012-09-19 | 2013-01-16 | 北京交通大学 | Indirect testing method for underground pipeline settlement induced by subway tunnel construction |
| CN108332711A (en) * | 2018-03-29 | 2018-07-27 | 温州青谷网络科技有限公司 | A kind of structure for monitoring municipal pipeline sedimentation |
| CN109611156A (en) * | 2018-12-28 | 2019-04-12 | 中铁隧道集团三处有限公司 | A kind of monitoring method of overlapping tunnel information-aided construction |
| CN110631560A (en) * | 2019-08-13 | 2019-12-31 | 中铁上海工程局集团有限公司 | Underground excavation interval monitoring and measuring method for subway station in dense building area |
| CN211900605U (en) * | 2019-12-30 | 2020-11-10 | 中铁二十二局集团轨道工程有限公司 | Shield construction monitoring structure for down-penetrating urban dense building pipeline |
-
2020
- 2020-12-29 CN CN202011597930.1A patent/CN112747715A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878980A (en) * | 2012-09-19 | 2013-01-16 | 北京交通大学 | Indirect testing method for underground pipeline settlement induced by subway tunnel construction |
| CN108332711A (en) * | 2018-03-29 | 2018-07-27 | 温州青谷网络科技有限公司 | A kind of structure for monitoring municipal pipeline sedimentation |
| CN109611156A (en) * | 2018-12-28 | 2019-04-12 | 中铁隧道集团三处有限公司 | A kind of monitoring method of overlapping tunnel information-aided construction |
| CN110631560A (en) * | 2019-08-13 | 2019-12-31 | 中铁上海工程局集团有限公司 | Underground excavation interval monitoring and measuring method for subway station in dense building area |
| CN211900605U (en) * | 2019-12-30 | 2020-11-10 | 中铁二十二局集团轨道工程有限公司 | Shield construction monitoring structure for down-penetrating urban dense building pipeline |
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