In this paper, the shell finite element method is used to analyze the actual deformation reaction of the gas pipeline through the active fracture. The corresponding shell finite element analysis model is established for the different sites on both sides of the active fault, the same sites on both sides, and the presence of fracture zones in the middle. By comparing the different situations of the Jining high-pressure gas pipeline passing through the Cangni fault and the Yishu fault, the reaction of the pipeline under the condition that the sites on both sides of the fault are different and the sites on both sides are the same. In the case of different fracture sites, the pipeline is prone to large deformation, and it is not suitable to use the method in the existing pipeline seismic code, and the finite element model needs to be established for analysis. Although the deformation of the pipe on both sides of the fault is different, the sliding length of the pipe on both sides is almost the same. It is very important to establish a seismic monitoring and warning system in the vicinity of active faults and take necessary seismic auxiliary measures to ensure the safe operation of gas pipelines
In the Jining pipeline crossing active fault zone monitoring project, the solar power supply system plays an extremely important role, providing solid power support for ensuring the safe operation and effective monitoring of the pipeline.
First of all, the solar power supply system ensures the continuous and stable operation of the monitoring equipment. The geological environment of the active fault zone is complex and unstable, which poses a great threat to pipelines, so long-term and uninterrupted monitoring is required. However, these monitoring areas are often remote, and the supply of mains power is difficult or the access cost is extremely high. The solar power supply system is not limited by the mains power supply, and can independently provide stable power for various monitoring sensors, data acquisition devices, and communication devices. For example, in severe weather conditions, utility lines may be damaged, but the solar-powered monitoring equipment can still work properly, collecting key data such as displacement, strain, and pressure of pipelines in real time, providing a reliable basis for assessing the safety status of pipelines.
Secondly, the solar-powered system enhances the layout flexibility of the monitoring system. The monitoring of active fault zones requires the setting of monitoring points at multiple key locations to fully grasp the operational status of the pipeline. Some monitoring sites may be located in inaccessible mountains, canyons, or other places that are difficult to reach by mains. The lightweight, flexible nature of the solar power system allows the monitoring equipment to be easily installed in these locations without being constrained by mains access. For example, in steep hillsides or complex terrain areas, the deployment of monitoring equipment can be easily realized by solar power supply, ensuring all-round monitoring of active fault zones and not missing any hidden danger points that may affect the safety of pipelines.
Furthermore, solar power systems offer significant advantages from a cost and maintenance perspective. In such a special monitoring project, the laying of mains lines requires a huge capital investment, including the cost of line laying, equipment purchase and maintenance. After the initial installation of the solar power supply system, the subsequent energy cost is almost zero, which greatly reduces the long-term operating costs. At the same time, its maintenance work is relatively simple, mainly focusing on regular cleaning of solar panels and checking battery performance, reducing complex maintenance work and high maintenance costs caused by mains line failures.
In addition, the independence of the solar power system increases the reliability and security of the monitoring data. In some special cases, the mains power supply may be disturbed or interrupted by external factors, which will affect the collection and transmission of monitoring data. The solar-powered system can operate independently and is not affected by fluctuations in the mains supply, ensuring the continuity and integrity of the monitoring data. For example, in the event of a geological disaster or man-made sabotage that causes a mains power outage, the solar-powered monitoring equipment can still transmit key data to the monitoring center in a timely manner, providing important support for pipeline emergency management and decision-making.
In summary, the solar power supply system plays an indispensable role in the monitoring project of the Jining pipeline crossing the active fault zone. It ensures the stable operation of monitoring equipment, improves the flexibility of layout, reduces the cost and maintenance difficulty, enhances the reliability and security of data, and provides strong technical support for ensuring the safe operation of Jining pipeline and preventing potential risks. With the continuous development and improvement of solar technology, it is believed that it will play a more important role in similar pipeline monitoring projects.