Attention shall be paid to the operation of sign piles:

1、丈量放线的基准点一定要接纳GPS定位，其中放线基准点是指设计控制桩和水准基桩。

1. GPS positioning must be adopted for the datum point of Surveying and setting out. The datum point of setting out refers to the design control pile and leveling pile.

2、一定要凭证图纸的作业要求设置控制桩，一定要批注桩号、里程、地面标高、转角高度等数据。

2. The control piles must be set according to the operation requirements of the drawings, and the data such as pile number, mileage, ground elevation and corner height must be indicated.

3、在定测资料清静面或是断面图纸上批注地下的障碍物，其次是，要包管线路和地下修建物交织两侧的控制规模为3米，同时，需要设置忠言牌和标记桩。标记桩上需要写上相关的数据。好比：埋深，交织尺寸等。

3. Indicate the underground obstacles on the location survey data and plane or section drawings. Secondly, ensure that the control range on both sides of the intersection of the line and underground structures is 3M. At the same time, set warning signs and sign piles. Relevant data shall be written on the sign pile. For example, burial depth, crossing size, etc.

4、关于划线方面，要凭证轴线和标记桩的界线之间拉一根绳子，撒上白石灰划线。完成划线，要整理现场的障碍物。

4. As for the marking, a rope shall be pulled between the axis and the boundary of the sign pile, and white lime shall be sprinkled for marking. After finishing the marking, the obstacles on the site shall be cleared.

5、关于移桩方面，是在划线完成之后扫除整理之前，将所有需要的线管桩平移到土堆的旁边，规模控制在0.3m。

5. In terms of pile moving, all required pipeline piles shall be moved to the side of the soil pile after the completion of marking and before cleaning, and the range shall be controlled within 0.3m.