Precautions for sign posts: Construction workers should wear safety helmets and other labor protection equipment; Set up various eye-catching warning signs within the construction site; We should strengthen on-site safety management and strengthen safety education for employees. The waste soil and materials should be stacked in a neat and orderly manner, and vegetation protection and measures should be taken if necessary to prevent environmental and agricultural pollution caused by soil erosion. After excavation in the soil area, the site is leveled, the slope is trimmed, and vegetation protection is carried out. During construction, measures should be taken to avoid and reduce soil erosion. When soil erosion occurs or causes pollution to farmland and the environment, it should be promptly addressed The temporary construction land will be restored after the land acquisition, meeting the requirements of the contract signed with the lessor and satisfying the lessor. After the completion of the project, remove all debris that occupies the site. Materials left over during construction should be removed.

油气管道线路标识设置基本要求

Basic requirements for the installation of oil and gas pipeline line markings

相同介质的两条管道同沟敷设时，线路标识宜合并设置，位置位于两条管道中间；三条管道同沟敷设时，应分别设置线路标识。

When two pipelines with the same medium are laid in the same trench, the line markings should be merged and placed in the middle of the two pipelines; When three pipelines are laid in the same trench, route markings should be set separately.

不同介质的两条管道同沟敷设时，应分别设置线路地面标识。

When two pipelines with different media are laid in the same trench, ground markings for the lines should be set separately.

并行管道的线路标识应分别设置，每条管道的线路标识应清晰、醒目、便于区分。

The line markings of parallel pipelines should be set separately, and the line markings of each pipeline should be clear, eye-catching, and easy to distinguish.

除转角桩外，当多种线路标识需在同一地点设置时，应只设置一个线路标识，设置顺序为里程桩／测试桩、标志桩、通信标石、分界桩。

Except for corner stakes, when multiple line markers need to be set at the same location, only one line marker should be set in the order of mileage stakes/test stakes, marker stakes, communication markers, and boundary markers.

除相同介质的两条管道同沟敷设外，线路标识均应设置在管道中心线上方，在满足可视性需求的前提下，可适当纵向调整位置。

Except for two pipelines with the same medium laid in the same trench, line markings should be set above the centerline of the pipeline, and the position can be adjusted longitudinally to meet visibility requirements.

线路标识原则上应设置在路边、田埂、堤坝等空旷荒地处，减少对土地使用的影响。

In principle, route markings should be set up on open wasteland such as roadsides, ridges, and embankments to reduce the impact on land use.

未作明确说明的线路标识桩正面均应面向来油（气）方向。

The front of the line identification piles without clear instructions should face the direction of oil (gas) coming in.

当管道埋深较浅，线路标识对管道有影响时，线路标识埋地部分的深度可适当减小，但不应小于0.3米，地面以上的高度保持不变。

When the buried depth of the pipeline is shallow and the route identification has an impact on the pipeline, the depth of the buried part of the route identification can be appropriately reduced, but should not be less than 0.3 meters, and the height above the ground remains unchanged.