CN112131692A - Gas pipeline construction method - Google Patents
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Abstract
The application relates to a gas pipeline construction method, which relates to the technical field of pipeline construction and comprises the following steps: s1, collecting information; s2, constructing a model family library; s3, building a BIM pipeline three-dimensional model; s4, simulation analysis design; s5, generating a bill of materials; and S6, performing process intersection. The construction method has the advantages that the construction process of the parameterized pipeline can be effectively controlled and managed, and the construction method is beneficial to the construction of the parameterized pipeline of the gas pipe network.
Description
Technical Field
The application relates to the technical field of pipeline construction, in particular to a gas pipeline construction method.
Background
Gas pipelines are the primary means of transporting large quantities of natural gas onshore. The gas pipelines are distributed in streets and alleys of cities and are used for conveying energy for thousands of households. However, the special characteristics of flammability and explosiveness of the gas cause the gas pipeline to have certain dangerousness, and once a gas accident occurs, the gas pipeline has great harm and great social influence. Therefore, the requirement on the gas pipeline management is higher and higher, and along with the continuous popularization of the concepts of pipeline integrity management and full life cycle management, the data generated in the gas pipeline construction process is more and more emphasized.
With the gradual expansion of gas pipe networks, the traditional pipeline construction concepts, means and methods are difficult to meet the requirements of pipeline construction and operation. Based on the idea of parameterization city, wisdom pipe network, in order to guarantee the high-efficient safe operation of pipeline, it is necessary to carry out the parameterization construction of pipeline. The pipeline geographic spatial information and the pipeline attributes are integrated into a whole through pipeline parameterization, the state of the pipeline is simulated by using visualization, parameterization and networking modes, management functions can be configured according to requirements, and sufficient data resources can be provided for management, maintenance and operation of a pipe network. The digital pipeline can establish a perfect pipeline full-life-cycle database by utilizing the collected data information, and the data collection and management of each stage can be developed into the unified data planning and management of the whole pipeline in the future for pipeline management, and the data of the database is standardized, so that a basis is provided for the pipeline full-life-cycle management, and the data of the database can be displayed in the form of long-term data extraction and report forms in the future.
Compared with other pipe networks, the gas type pipe network has higher safety requirements, the gas pipe network has long laying operation time and incomplete pipeline properties, and the pipeline is difficult to position due to the change of a road surface and a reference object; the underground pipe network is lack of integrity management, so that unsafe factors are increased; the management of the overground pipe network assets is not in place, and related attribute data are lacked, so that a plurality of potential safety hazards are left. Therefore, those skilled in the art are dedicated to develop a gas pipeline construction method, which can effectively control and manage the construction process of the parameterized pipeline and is also helpful for the construction of the parameterized pipeline of the gas pipeline network.
Disclosure of Invention
In order to effectively control and manage the construction process of the parameterized pipeline and facilitate the construction of the parameterized pipeline of the gas pipe network, the application provides a gas pipeline construction method.
The application provides a gas pipeline construction method adopts following technical scheme:
a gas pipeline construction method comprises the following steps:
s1, collecting information, investigating the surrounding environment of a construction site, and collecting GIS data information of buildings, structures and various underground pipelines;
s2, constructing a model family library, and establishing a BIM building standard parameterized model family library of the pipeline by utilizing Revit software;
s3, building a BIM pipeline three-dimensional model, analyzing, classifying, encrypting and recording GIS data of collected buildings, structures and various pipelines, constructing a 3D visual GIS model by means of ArcGIS and Revit software, and then importing the 3D visual GIS model into the BIM pipeline three-dimensional model by utilizing a portable BIM importing mechanism provided by Supermap GIS software;
s4, simulation analysis design, namely importing a BIM building information model established by Revit into Navisvarks software for real-time roaming, size analysis and four-dimensional construction simulation;
s5, generating a bill of materials, counting the amount of materials required by the pipeline by using the BIM software list function, generating the bill of materials, determining a field construction scheme, and generating a construction drawing;
and S6, performing process cross-bottom, performing visual construction process cross-bottom on site constructors through animation short sheets made by 3Dmax or Navisvarks software, and guiding the construction process in an all-round way.
By adopting the technical scheme, the BIM technology is utilized to establish the pipeline construction model, the construction simulation of the pipeline layout structure can be carried out according to different field construction environments, and the surrounding environment of the pipeline to be constructed is picked up by installing the rapid modeling plug-in unit of the layout structure to carry out reasonable layout design on the pipeline layout structure; the optimal design scheme is determined through simulation analysis, and the material quantity required by each layout structure of the pipeline is counted, so that the material quantity required by operation can be refined according to construction positions, waste is avoided, and meanwhile, the BIM technology is utilized to guide the construction process in an all-round manner, and errors in the construction process are reduced; by adopting the BIM technology and multiple optimization measures before the construction process, the construction process of the parameterized pipeline can be effectively controlled and managed, the construction of the parameterized pipeline of the gas pipe network is facilitated, the potential safety hazard in the subsequent pipeline construction process is reduced, and meanwhile, the information in the BIM pipeline three-dimensional model can be conveniently inquired for the pipeline line subsequently, and the subsequent search and maintenance for the pipeline are facilitated.
Preferably, in step S1, the collected GIS data information of the building, the structure, and the various underground pipelines includes map background information, vector maps, grid maps, image films, station yard information, substation information, road information, gas transmission pipeline networks, main pipeline networks, and gas distribution pipeline networks.
By adopting the technical scheme, the acquired geographic spatial information is reasonably organized and displayed in the integral BIM pipeline three-dimensional model through multi-azimuth acquisition of the geographic spatial information of the pipeline wiring area, so that the aims of timely, accurately and comprehensively providing relevant information of gas pipeline gathering and transportation pipelines, stations and environmental conditions for workers and providing powerful support for making decisions rapidly and accurately are fulfilled.
Preferably, in step S1, the GIS data information of each underground pipeline may be collected by an electromagnetic method, a direct current method, a seismic method, or an infrared radiation method.
By adopting the technical scheme, the positions of the existing pipelines and other buried objects in the ground are confirmed by adopting various underground pipeline geophysical prospecting technical means, and a basis is provided for designing the layout track of the gas pipeline.
Preferably, the BIM pipeline three-dimensional model in step S3 further includes layer management, which performs hierarchical classification management on various geospatial information and determines a display scheme.
By adopting the technical scheme, various geographic spatial information is reasonably classified and managed in a layered manner, various practical schemes can be flexibly customized according to the requirements of designers, and symbol configuration, scale setting, information prompt and the like of the layers are provided, so that configuration management is provided for graphical operation of the designers, the designers can optimize the pipeline layout optimization scheme conveniently, and the gas pipeline construction process and the integral parameterization are further improved.
Preferably, in step S3, the BIM pipeline three-dimensional model further includes a horizontal and vertical section graphic display, and a vertical section diagram of the gas pipeline layout is automatically generated according to the data of the pile number, the pipe top elevation, the pipeline burial depth and the like of the gas pipeline in combination with the specific coordinates of the pipeline on the BIM pipeline three-dimensional model.
Through adopting above-mentioned technical scheme, through showing the whole parameterization of gas pipeline for the designer knows the model and the mode of laying of the different gas pipelines in each region clearly, provides a visual convenient visual standard library management instrument, makes the information that all designers received completely synchronous, promotes designer's design efficiency and constructor's construction accuracy.
Preferably, in the step S4, a dredging guidance scheme capable of avoiding casualties and energy waste when the pipeline is broken is constructed in the simulation analysis design, and then based on the technical support of 3DGIS, the three-dimensional pipeline in the BIM pipeline three-dimensional model is fused with the multi-element spatial data of buildings, terrain, and the like, so that the macroscopic and microscopic supplement is realized, and the pipeline optimization elements in the BIM pipeline three-dimensional model are more reasonable.
By adopting the technical scheme, before the building of on-site construction, the fusion of a three-dimensional pipeline in a BIM pipeline three-dimensional model and multi-element spatial data such as buildings, terrains and the like can be realized through the technical support of 3DGIS, the GIS provides multiple practical GIS query and analysis functions for the BIM data, the position service and spatial analysis characteristics of the GIS are exerted, the dynamic simulation function special for the BIM is provided, the parameterized management of pipeline construction is realized, and meanwhile, the fusion of the BIM and the GIS can ensure that the pipeline layout optimization quality is better, the analysis is more precise and accurate, and the decision efficiency is higher.
Preferably, in the construction process of step S6, an engineer may cooperate with a site builder through the BIM 360 glue, and the site builder may check the construction condition by referring to the BIM pipeline three-dimensional model through the desktop terminal, the mobile device, and the network interface, and meanwhile, a designer may conveniently perform model adjustment and collision detection in combination with site construction.
Through adopting above-mentioned technical scheme, can be more timely and high-efficient with the information exchange between designer and the site operation personnel, the designer can remotely guide the site operation personnel to carry out pipeline structure's installation, simultaneously when some structure cooperation of pipeline goes wrong, 360 glue of accessible BIM carry out the information exchange, thereby be convenient for the designer judge and confirm the solution according to the site operation condition, and then the site operation personnel of being convenient for carry out quick response and change, construction efficiency is improved, further promote the effectual control of work progress and the management parameterization to the pipeline.
Preferably, the construction process of step S6 includes the following steps:
firstly, placing a horizontal directional drilling machine beside a working pit and fixing the horizontal directional drilling machine by adding an anchor rod, wherein the anchor rod is positioned at the front end of the horizontal directional drilling machine;
step two, conducting guide hole construction according to a designed pipeline track curve, and arranging data control points on a crossing curve every 3-5 m;
step three, after the pilot hole is drilled, reaming is carried out by utilizing a reaming bit, drilling fluid is added into the pilot hole through the reaming bit, and the pilot hole is expanded to meet the size of the pipeline in a grading manner; the reaming bit is driven by a drill rod of the horizontal directional drilling machine;
welding the gas pipeline into a required length, then connecting the drill rod for the last reaming with the high-pressure gas pipeline through a pipe drawing head, drawing the drill rod back to draw the high-pressure gas pipeline into the guide hole, monitoring by using a navigation system in the process of drawing the pipeline, and ensuring that the pipeline is dragged according to the pipeline track curve;
and fifthly, injecting cement grout into the gap between the high-pressure gas pipeline and the guide hole until the gap is filled with the cement grout.
By adopting the technical scheme, according to the design in the BIM pipeline three-dimensional model, the pipeline layout construction of the gas pipeline is completed according to the flow, a non-excavation horizontal directional drilling crossing construction method is adopted, the position of the pipeline can be accurately determined by the hole wall of the drilled hole, the direction of the pipeline is ensured, the pipeline burial depth is reasonably arranged, the construction cost is effectively reduced, the construction quality is ensured, the environment is protected, the construction and the like in winter and rainy seasons are basically not influenced, the construction can be carried out as long as pipes can be arranged and equipment can be placed, the construction can be carried out even in places with large traffic flow and more pedestrians, the safe and civilized construction can be ensured, a foundation pit does not need to be excavated in a large area, a construction operation pit only needs to be excavated by local small operation; the fitting degree with the design of the BIM pipeline three-dimensional model is high, the construction risk of the gas pipeline is reduced, and the safe operation of the gas pipeline is facilitated.
Preferably, the site construction scheme of step S5 further includes the following steps: and sixthly, after the pipeline is laid, burying a permanent mark on the surface of the road surface above the pipe position, wherein the permanent mark has a unique code, and recording a three-dimensional coordinate of the permanent mark on the BIM pipeline three-dimensional model.
By adopting the technical scheme, when the pipeline is subsequently maintained and searched, the three-dimensional coordinate can be found in the BIM pipeline three-dimensional model, then the target pipeline pipe position can be quickly found through the permanent identification of the road surface above the pipe position, and the parameterized management of the pipeline is adopted, so that accurate data is provided for later operation, maintenance and reconstruction of the pipeline and reconstruction and extension of municipal gas engineering.
To sum up, the application comprises the following beneficial technical effects:
1. the pipeline construction model is established by utilizing the BIM technology, the construction simulation of the pipeline layout structure can be carried out according to different field construction environments, and the environment around the pipeline to be constructed is picked up by installing the rapid modeling plug-in of the layout structure to carry out reasonable layout design on the pipeline layout structure; the optimal design scheme is determined through simulation analysis, and the material quantity required by each layout structure of the pipeline is counted, so that the material quantity required by operation can be refined according to construction positions, waste is avoided, and meanwhile, the BIM technology is utilized to guide the construction process in an all-round manner, and errors in the construction process are reduced; by adopting a BIM technology and a plurality of optimization measures before the construction process, the construction process of the parameterized pipeline can be effectively controlled and managed, the construction of the parameterized pipeline of the gas pipe network is facilitated, the potential safety hazard in the subsequent pipeline construction process is reduced, and meanwhile, the information in the BIM pipeline three-dimensional model can facilitate the subsequent inquiry of pipeline lines and the subsequent search and maintenance of the pipeline;
2. according to the design in the BIM pipeline three-dimensional model and according to the set flow, the pipeline layout construction of the gas pipeline is completed by adopting a non-excavation horizontal directional drilling crossing construction method, the position of the pipeline can be accurately determined by drilling the hole wall, the direction of the pipeline is ensured, the pipeline burial depth is reasonably arranged, the construction cost is effectively reduced, the construction quality is ensured, the environment is protected, the underground water level is high, the construction in winter and rainy seasons and the like is basically not influenced, the construction can be carried out as long as pipes can be arranged and equipment can be placed, the construction can be carried out even in places with large traffic flow and more pedestrians, the safe and civilized construction can be ensured, the excavation of a foundation pit in a large area is not needed, only a local small operation excavation construction; the fitting degree with the BIM pipeline three-dimensional model design is high, the construction risk of the gas pipeline is reduced, and the safe operation of the gas pipeline is facilitated;
3. the designer can remotely guide the field constructor to install the pipeline structure, and meanwhile, when problems occur in the matching of certain structures of the pipeline, information communication can be carried out through BIM 360 glue, so that the designer can conveniently judge and determine the solution according to the field construction condition, the field constructor can conveniently carry out quick response and replacement, the construction efficiency is improved, and the effective control and management parameterization of the construction process of the pipeline are further improved.
Drawings
Fig. 1 is a schematic view of the flow structure of the present application.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a gas pipeline construction method. Referring to fig. 1, a gas pipeline construction method includes the steps of,
s1, collecting information, investigating the surrounding environment of a construction site, and collecting GIS data information of buildings, structures and various underground pipelines; GIS data information acquisition of various underground pipelines is selectively acquired by adopting an electromagnetic method, a direct current electric method, a seismic wave method and an infrared radiation method according to the field environment; the collected GIS data information of the buildings, the structures and various underground pipelines comprises but is not limited to map background information, vector maps, grid maps, image navigation films, station yard information, substation information, road information, a gas transmission pipeline network, a main pipeline network and a gas distribution pipeline network; multimedia data such as images, charts, audio, video and the like are added to important pipe network facilities in the construction range, so that the collected data are more perfect and visual;
s2, constructing a model family library, and establishing a BIM building standard parameterized model family library of the pipeline by utilizing Revit software; after the building of the BIM building standard parameterized model family library is completed, building related data and information on the built pipeline parameterized model, visually displaying the data, and realizing circulation sharing, negotiation and management of parameter data of the gas pipeline at each department;
s3, building a BIM pipeline three-dimensional model, analyzing, classifying, encrypting and recording GIS data of collected buildings, structures and various pipelines, constructing a 3D visual GIS model by means of ArcGIS and Revit software, and then importing the 3D visual GIS model into the BIM pipeline three-dimensional model by utilizing a portable BIM importing mechanism provided by Supermap GIS software; the BIM pipeline three-dimensional model also comprises layer management, which is used for carrying out hierarchical classification management on various geographic space information and determining a display scheme; the BIM pipeline three-dimensional model also comprises a transverse and longitudinal section graphic display, a longitudinal section diagram for gas pipeline layout is automatically generated by combining the data of the number of the gas pipeline, the height of the pipe top, the pipeline burial depth and the like with the concrete coordinates of the pipeline on the BIM pipeline three-dimensional model, through the integral parameterization display of the gas pipeline, designers can clearly know the models and the layout modes of different gas pipelines in each area, a visual and convenient standard library management tool is provided, the information received by all the designers is completely synchronous, the design efficiency of the designers and the construction accuracy of the constructors are improved, and the gas pipeline construction process and the integral parameterization are improved;
s4, simulation analysis design, namely importing a BIM building information model established by Revit into Navisvarks software for real-time roaming, size analysis and four-dimensional construction simulation; constructing a dredging guide scheme which can avoid casualties and energy waste when the pipeline is broken in simulation analysis design, and then fusing a three-dimensional pipeline in a BIM pipeline three-dimensional model with multi-element space data such as buildings, terrain and the like based on the technical support of 3DGIS to realize the supplement of macroscopicity and microcosmic, so that pipeline optimization elements in the BIM pipeline three-dimensional model are more reasonable;
s5, generating a bill of materials, counting the amount of materials required by the pipeline by using the BIM software list function, generating the bill of materials, determining a field construction scheme, and generating a construction drawing;
s6, performing process cross-bottom, performing visual construction process cross-bottom for field constructors through animation short sheets made by 3Dmax or Navisvarks software, and guiding the construction process in all directions; an engineer can be matched with field construction personnel through the BIM 360 glue, the field construction personnel can check construction conditions by contrasting a BIM pipeline three-dimensional model through a desktop terminal, a mobile device and a network interface, and meanwhile, a designer can conveniently adjust the model and detect conflicts by combining field construction; the field construction scheme comprises the following steps:
firstly, placing a horizontal directional drilling machine beside a working pit and fixing the horizontal directional drilling machine by adding an anchor rod, wherein the anchor rod is positioned at the front end of the horizontal directional drilling machine;
step two, conducting guide hole construction according to a designed pipeline track curve, and arranging data control points on a crossing curve every 3-5 m;
step three, after the pilot hole is drilled, reaming is carried out by utilizing a reaming bit, drilling fluid is added into the pilot hole through the reaming bit, and the pilot hole is expanded to meet the size of the pipeline in a grading manner; the reaming bit is driven by a drill rod of the horizontal directional drilling machine;
welding the gas pipeline into a required length, then connecting the drill rod for the last reaming with the high-pressure gas pipeline through a pipe drawing head, drawing the drill rod back to draw the high-pressure gas pipeline into the guide hole, monitoring by using a navigation system in the process of drawing the pipeline, and ensuring that the pipeline is dragged according to the pipeline track curve;
step five, injecting cement grout into the gap between the high-pressure gas pipeline and the guide hole until the gap is filled with the cement grout;
and sixthly, after the pipeline is laid, burying a permanent mark on the surface of the road surface above the pipe position, wherein the permanent mark has a unique code, and recording a three-dimensional coordinate of the permanent mark on the BIM pipeline three-dimensional model.
The implementation principle of the gas pipeline construction method in the embodiment of the application is as follows: the pipeline construction model is established by utilizing the BIM technology, the construction simulation of the pipeline layout structure can be carried out according to different field construction environments, and the environment around the pipeline to be constructed is picked up by installing the rapid modeling plug-in of the layout structure to carry out reasonable layout design on the pipeline layout structure; the optimal design scheme is determined through simulation analysis, and the material quantity required by each layout structure of the pipeline is counted, so that the material quantity required by operation can be refined according to construction positions, waste is avoided, and meanwhile, the BIM technology is utilized to guide the construction process in an all-round manner, and errors in the construction process are reduced; by adopting a BIM technology and a plurality of optimization measures before the construction process, the construction process of the parameterized pipeline can be effectively controlled and managed, the construction of the parameterized pipeline of the gas pipe network is facilitated, the potential safety hazard in the subsequent pipeline construction process is reduced, and meanwhile, the information in the BIM pipeline three-dimensional model can facilitate the subsequent inquiry of pipeline lines and the subsequent search and maintenance of the pipeline; before the building of on-site construction, the fusion of a three-dimensional pipeline in a BIM pipeline three-dimensional model and multi-element spatial data such as buildings, terrains and the like can be realized through the technical support of 3DGIS, the GIS provides multiple practical GIS query and analysis functions for the BIM data, the position service and spatial analysis characteristics of the GIS are exerted at the same time, the dynamic simulation function special for the BIM is provided, the parameterization management of pipeline construction is realized, and meanwhile, the fusion of the BIM and the GIS can enable the pipeline layout optimization quality to be better, the analysis to be more precise and accurate and the decision-making efficiency to be higher.
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 (9)
1. A gas pipeline construction method is characterized in that: the method comprises the following steps:
s1, collecting information, investigating the surrounding environment of a construction site, and collecting GIS data information of buildings, structures and various underground pipelines;
s2, constructing a model family library, and establishing a BIM building standard parameterized model family library of the pipeline by utilizing Revit software;
s3, building a BIM pipeline three-dimensional model, analyzing, classifying, encrypting and recording GIS data of collected buildings, structures and various pipelines, constructing a 3D visual GIS model by means of ArcGIS and Revit software, and then importing the 3D visual GIS model into the BIM pipeline three-dimensional model by utilizing a portable BIM importing mechanism provided by Supermap GIS software;
s4, simulation analysis design, namely importing a BIM building information model established by Revit into Navisvarks software for real-time roaming, size analysis and four-dimensional construction simulation;
s5, generating a bill of materials, counting the amount of materials required by the pipeline by using the BIM software list function, generating the bill of materials, determining a field construction scheme, and generating a construction drawing;
and S6, performing process cross-bottom, performing visual construction process cross-bottom on site constructors through animation short sheets made by 3Dmax or Navisvarks software, and guiding the construction process in an all-round way.
2. The gas pipeline construction method according to claim 1, wherein: in step S1, the collected GIS data information of the building, the structure, and the various underground pipelines includes map background information, vector maps, grid maps, image navigation films, station yard information, substation information, road information, gas transmission pipeline networks, main pipeline networks, and gas distribution pipeline networks.
3. The gas pipeline construction method according to claim 1, wherein: in step S1, the GIS data information of various underground pipelines may be collected by an electromagnetic method, a direct current method, a seismic method, and an infrared radiation method.
4. The gas pipeline construction method according to claim 1, wherein: the BIM pipeline three-dimensional model in step S3 further includes layer management, which performs hierarchical classification management on various geospatial information and determines a display scheme.
5. The gas pipeline construction method according to claim 1, wherein: in the step S3, the BIM pipeline three-dimensional model further includes a horizontal and vertical section graphic display, and a vertical section diagram of the gas pipeline layout is automatically generated according to the data of the pile number, the pipe top elevation, the pipeline burial depth and the like of the gas pipeline in combination with the specific coordinates of the pipeline on the BIM pipeline three-dimensional model.
6. The gas pipeline construction method according to claim 1, wherein: in the step S4, a dredging guidance scheme capable of avoiding casualties and energy waste when the pipeline is broken is constructed in the simulation analysis design, and then the three-dimensional pipeline in the BIM pipeline three-dimensional model is fused with multi-element spatial data such as buildings, terrains and the like based on the technical support of 3DGIS to realize the supplement of macroscopicity and microcosmic, so that the pipeline optimization elements in the BIM pipeline three-dimensional model are more reasonable.
7. The gas pipeline construction method according to claim 1, wherein: in the construction process of the step S6, an engineer may cooperate with site builders through the BIM 360 glue, and the site builders may check the construction conditions by referring to the BIM pipeline three-dimensional model through the desktop terminal, the mobile device, and the network interface, and at the same time, the designer may conveniently perform model adjustment and collision detection in combination with site construction.
8. The gas pipeline construction method according to claim 1, wherein: the construction process of the step S6 includes the following steps: firstly, placing a horizontal directional drilling machine beside a working pit and fixing the horizontal directional drilling machine by adding an anchor rod, wherein the anchor rod is positioned at the front end of the horizontal directional drilling machine;
step two, conducting guide hole construction according to a designed pipeline track curve, and arranging data control points on a crossing curve every 3-5 m;
step three, after the pilot hole is drilled, reaming is carried out by utilizing a reaming bit, drilling fluid is added into the pilot hole through the reaming bit, and the pilot hole is expanded to meet the size of the pipeline in a grading manner; the reaming bit is driven by a drill rod of the horizontal directional drilling machine;
welding the gas pipeline into a required length, then connecting the drill rod for the last reaming with the high-pressure gas pipeline through a pipe drawing head, drawing the drill rod back to draw the high-pressure gas pipeline into the guide hole, monitoring by using a navigation system in the process of drawing the pipeline, and ensuring that the pipeline is dragged according to the pipeline track curve;
and fifthly, injecting cement grout into the gap between the high-pressure gas pipeline and the guide hole until the gap is filled with the cement grout.
9. The gas pipeline construction method according to claim 8, wherein: the site construction scheme of step S5 further includes the steps of: and sixthly, after the pipeline is laid, burying a permanent mark on the surface of the road surface above the pipe position, wherein the permanent mark has a unique code, and recording a three-dimensional coordinate of the permanent mark on the BIM pipeline three-dimensional model.
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