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    Technical points and quality control of highway safety facilities construction

    Release time: 2018-05-26Views : Font size: Big Middle Small [Close]

    Traffic safety equipment is classified as basic equipment on the road, including road traffic signs, markings, guardrails, barriers, anti-glare equipment, and vision guidance equipment. It plays an important role in reducing the severity of the incident, removing all kinds of vertical and horizontal disturbances, improving the service level of the road, providing vision guidance, and improving the landscape of the road, especially for the full use of road safety, fast, economic, and comfortable functions Has a special meaning.

    Therefore, both the construction enterprise and the construction unit should cooperate harmoniously, closely link all aspects of quality management, strengthen the management, clarify the rights and responsibilities, make the quality management system more institutionalized and standardized, counsel the cooperation on both sides, and improve the quality of construction. Add a guarantee.

    I. Essentials of Construction Skills for Highway Traffic Safety Equipment Engineering

    1.Barrier grid setting

    The barrier is usually set at the orientation of the highway boundary, and some problems often occur during the construction process. In order to ensure the accuracy of the stakeout, it is necessary to use the total station to measure the boundary of the land before the construction starts, and then carry out the construction after the measurement. Positioning. Before the construction of the barrier device, it is necessary to deal with the terrain in the azimuth. The ground on the nearby side must be leveled, the surrounding debris should be cleaned, and the ground should be compacted and leveled as much as possible. Regarding the more difficult terrain It is necessary to form a certain slope through construction, and then ensure that the barrier can be constructed along the slope.

    2. Anti-collision fence construction skills

    On high-grade highways, in order to prevent the entry of people and animals unrelated to the highway, to ensure the safety of vehicles traveling at high speed, and to prevent illegal occupation of land, barriers are set up. Occasionally being stolen, not only is it an economic loss to the operator, but it also has a bad influence on safe driving. It is necessary to strengthen the quality of the installation on site.

    Stake out construction in strict accordance with the plan. First set the centerline outward from the side ditch on both sides of the road to ensure the accuracy of the scale of the road land, and then determine the orientation of the pillars on the centerline and make it at each pile position. Mark; based on the completion of the stake out and positioning work.

    Start digging in accordance with the requirements of the plan. The plane size and depth must not be less than the planning requirements. The bottom of the pit must be cleaned and cleaned. To connect the mesh, first connect the mesh with pillars on the ground (the connection bolts cannot be tightened). The orientation of each foundation pit is erected, and it is supported by temporary supports. It is adjusted according to the plan and the site terrain to ensure the smoothness and beautifulness of the line shape. After the line shape of the barrier grid is checked by the supervisor, the concrete can be poured into the pit, and the concrete strength reaches the plan. Remove the temporary support and tighten the bolts when the number is above 80.

    3.Setting of traffic signs

    During the construction process of the landmark project, the biggest feature is that it is widely distributed, and the overall structure is also very complicated and there are many types. Therefore, before the construction of this type of project, it is necessary to have relevant personnel to carry out construction. Conduct on-site surveys, and conduct a full survey of construction drawings and construction site conditions before construction determination can be made.

    This can effectively prevent the formation of unpleasant effects on the surrounding environment due to construction problems. During the construction process, the corresponding symbols need to be marked on the stakes, so in the drawing planning process, the related planning content needs to be investigated specifically to ensure that it is consistent with the actual situation.

    4. Traffic markings

    During the construction of traffic markings, the construction of the entire traffic safety equipment project has an important impact, and it is necessary to do a good job of controlling the construction speed and construction temperature. In the process of marking construction, construction operators must fully grasp the common sense of construction created by various markings. It is necessary to accurately understand the general knowledge of markings, especially before starting construction, it is necessary to understand the entire During the process, temperature control, humidity control, and construction equipment are specifically tested. After they reach the established construction requirements, the actual traffic marking construction can be carried out, and then the traffic marking construction can reach an ideal construction state to ensure that The smooth operation of the entire transportation system.

    For example, a rainy night reflective rain line is a type of road traffic marking. At night, when the road markings are boring, wet, or covered by water film, a given external light source can reflect light at a certain viewpoint.

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