Several precautions during the construction of the double-circle guardrail net: 1. If the double-circle guardrail mesh is used as an anti-collision guardrail, the appearance quality of the product depends on the construction process, and the combination of construction preparation and piling machine should be paid attention to in construction, and the experience should be continuously summarized, construction management should be strengthened, and the installation quality of the isolation fence should be guaranteed; 2. The slope protection net reminds you that when the column of the guardrail is driven too deep, the column should not be pulled out for correction, and the foundation needs to be re-rammed before entering, or adjust the position of the column. When approaching the depth during construction, attention should be paid to controlling the hammering force; 3. The slope protection network reminds you to accurately grasp the information of various facilities when installing the double-circle fence network, especially the accurate location of various pipelines buried in the roadbed, and do not allow any damage to underground facilities during the construction process; 4. The slope protection network reminds you to install the flange when installing the highway bridge, pay attention to the positioning of the flange and the control of the top surface elevation of the column.