东莞工地道路隔离栏 广州批发交通设施围栏 道路护栏

Dongguan construction site road barrier Guangzhou wholesale traffic facilities fence road guardrail
再根据立柱顶面应高出路缘石顶面70cm算出立柱顶面标高。

Then calculate the top elevation of the column according to that the top surface of the column should be 70cm higher than the top surface of the curb.
然后打入立柱时,对每根立柱进行测量。

Then measure each column when driving the column.
但这样虽然保证了立柱顶面平顺。
However, this ensures that the top surface of the column is smooth.
但由于路面实际标高与设计标高之间存在误差,而且误差较大。
However, there is an error between the actual elevation and the design elevation, and the error is large.