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 centerline, and set the equipment guardrail according to the regular slope and alignment.

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

The original foundation treatment is an important condition to ensure the guardrail and overall stability. In order to ensure the stability of the column, it is necessary to replace and strengthen the soft layer under the foundation. For column equipment, from the longitudinal section, the column axis is a straight line 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(shí)設(shè)備放樣方位，以確保基坑的巨細(xì)。在基坑立柱設(shè)備進(jìn)程中，有必要確保柱的穩(wěn)定性和與地基的緊密連接。在立柱設(shè)備進(jìn)程中，選用小線段對立柱設(shè)備的直線進(jìn)行測驗(yàn)，并對部分進(jìn)行調(diào)整，確保直線段，曲線段滑潤，立柱契合規(guī)劃圖紙要求。網(wǎng)格有必要與柱緊密連接，網(wǎng)面光滑平整，無明顯的翹曲和突起。設(shè)備護(hù)欄后，應(yīng)設(shè)備立柱，以確保設(shè)備的正確性和健壯性。

During the excavation of the foundation pit, the equipment setting out direction shall ensure the size of the 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. The grid must 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(hù)欄只要精 確健壯的設(shè)備后才能夠有用維護(hù)施工安 全，所以設(shè)備前要做的準(zhǔn)備工作也是尤為重要的，決不可粗心，詳細(xì)的設(shè)備進(jìn)程要看施工現(xiàn)場的實(shí)踐情況來做抉擇。

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