Before the equipment, first measure the pipeline, ground treatment (in the case of replacement or compaction), foundation pit slope, excavation, the orientation of temporary fixing of columns, protective railing, pouring concrete foundation, fastening and adjustment of foundation pit fence. Surveying and mapping: carry out the construction layout according to the drawing planning requirements and practical terrain and guidelines, set the column center line, and set the equipment guardrail according to the regular slope and alignment.

原始地基处理是确保护栏和整体稳定性的重要条件，为确保立柱的稳定性，需求替换和加固地基下的软层。柱设备部分，从纵剖面上看，柱轴线呈直线，不应呈现不均匀现象；从高处看，柱顶光滑，不应呈现不平的情况，特别地势在外。基准和白线是在调查和启航的基础上建立的。本来的地上被填满了，斜坡又被夯实了。

The original foundation treatment is an important condition to ensure the stability of the guardrail and the whole. In order to ensure the stability of the column, it is necessary to replace and strengthen the soft layer under the foundation. For the column equipment, from the longitudinal section, the column axis is straight and should not be uneven; From a high point of view, the top of the column is smooth and should not be uneven, especially the terrain is outside. The benchmark and white line are established on the basis of investigation and sailing. The original ground was filled and the slope was tamped again.

基坑开挖时设备放样方位，以确保基坑的巨细。在基坑立柱设备进程中，有必要确保柱的稳定性和与地基的紧密连接。在立柱设备进程中，选用小线段对立柱设备的直线进行测验，并对部分进行调整，确保直线段，曲线段滑润，立柱契合规划图纸要求。网格有必要与柱紧密连接，网面光滑平整，无明显的翘曲和突起。设备护栏后，应设备立柱，以确保设备的正确性和健壮性。

During the excavation of foundation pit, the setting out orientation of equipment shall be ensured to ensure the size of foundation pit. In the process of foundation pit column equipment, it is necessary to ensure the stability of the column and the close connection with the foundation. In the process of column equipment, select small segments to test the straight line of column equipment, and adjust some parts to ensure that the straight line and curve segments are smooth, and the column meets the requirements of planning drawings. It is necessary for the grid to be closely connected with the column, and the grid surface is smooth and flat without obvious warpage and protrusion. After the equipment guardrail, the equipment column shall be installed to ensure the correctness and robustness of the equipment.

基坑护栏只要精确健壮的设备后才能够有用维护施工，所以设备前要做的准备工作也是尤为重要的，决不可粗心，详细的设备进程要看施工现场的实践情况来做抉择。

The foundation pit guardrail can effectively maintain the construction safety only after accurate and robust equipment, so the preparation work before the equipment is also particularly important, and must not be careless. The detailed equipment process depends on the practice of the construction site.