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.

原始地基處理是確保護欄和整體穩定性的重要條件，為確保立柱的穩定性，需求替換和加固地基下的軟層。柱設備部分，從縱剖面上看，柱軸線呈直線，不應呈現不均勻現象；從高處看，柱頂光滑，不應呈現不平的情況，特別地勢在外。基準和白線是在調查和啟航的基礎上建立的。本來的地上被填滿了，斜坡又被夯實了。

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.

基坑開挖時設備放樣方位，以確保基坑的巨細。在基坑立柱設備進程中，有必要確保柱的穩定性和與地基的緊密連接。在立柱設備進程中，選用小線段對立柱設備的直線進行測驗，并對部分進行調整，確保直線段，曲線段滑潤，立柱契合規劃圖紙要求。網格有必要與柱緊密連接，網面光滑平整，無明顯的翹曲和突起。設備護欄后，應設備立柱，以確保設備的正確性和健壯性。

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.

基坑護欄只要精確健壯的設備后才能夠有用維護施工，所以設備前要做的準備工作也是尤為重要的，決不可粗心，詳細的設備進程要看施工現場的實踐情況來做抉擇。

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.