基坑臨邊護欄又叫基坑防護網、基坑防護欄、基坑臨邊防護欄、建筑工地護欄等。在建筑施工開始首要是挖地基把挖好的基坑圍護起來，防止施工意外的發生，確保在建筑施工時無事故發生，保證施工進度正常建設。

Foundation pit edge guardrail, also known as foundation pit protective net, foundation pit guardrail, foundation pit edge guardrail, construction site guardrail, etc. At the beginning of construction, the first priority is to excavate the foundation and enclose the excavated foundation pit to prevent construction accidents, ensure that no safety accidents occur during construction, and ensure the normal construction progress.

在安裝前的基坑臨邊護欄一般是建設形成的較低的磚或混凝土澆筑與防護欄使用機械膨脹螺栓、化學螺絲檢查和其他方法來中心支柱鋼襯部分降低基礎直線。如果沒有形成較低的墻體底板，可以將鋼襯的長度直接埋在墻內，并在墻的養護期后正式施工。或者是提前做預制件，將預制件與預制件焊接在柱內。這樣的方法比螺栓鏈接更加牢固，但前提是假定的，施工時必須要注意直線和水平線，鋼柱與鋼襯之間的距離與設計尺寸一致，以保半成品能與之相連。

Before installation, the edge guardrail of the foundation pit is generally constructed by pouring lower bricks or concrete and using mechanical expansion bolts, chemical screws for inspection, and other methods to solve the problem of lowering the foundation straight line of the steel lining part of the central pillar. If a lower wall bottom plate is not formed, the length of the steel lining can be directly buried inside the wall and officially constructed after the wall's curing period. Alternatively, prefabricated components can be made in advance and welded to the column. This method is more secure than bolted connections, but the premise is that during construction, attention must be paid to straight and horizontal lines, and the distance between the steel column and the steel lining should be consistent with the design dimensions to ensure that the semi-finished product can be connected to it.

在直線上畫上兩條平行線，使整個斷面作為安裝和調整的基準，安裝后確保基坑防護欄上下端平整。在工地建立之前已經安裝基坑防護欄的十字和鋼襯，每個軸承的加強部分也安裝到位。在現場施工時只需要將基坑防護欄襯墊與立柱相連即可。

Draw two parallel lines on the straight line, making the entire section the benchmark for installation and adjustment. After installation, ensure that the upper and lower ends of the foundation pit protective fence are flat. Before the construction site is established, the cross and steel lining of the foundation pit guardrail have been installed, and the reinforcing parts of each bearing have also been installed in place. During on-site construction, it is only necessary to connect the foundation pit protective fence pad to the column.

基坑臨邊護欄是根據施工圖紙定制而成，嚴格按圖施工，要求在出廠前進行串聯組裝。產品在運施工現場后只需將各立柱的鋼襯插入穩定的基座中，根據使用部門的要求擴展布局。基礎打好完成后將使用特殊的螺栓將每個基坑護欄適當的連接起來。為了提高抗風性和惡意移動，穩定的底座應固定在地面上，膨脹螺栓部分應在地面內。

The edge guardrail of the foundation pit is customized according to the construction drawings and constructed strictly according to the drawings. It is required to be assembled in series before leaving the factory. After the product is transported to the construction site, simply insert the steel lining of each column into a stable base and expand the layout according to the requirements of the user department. After the foundation is laid, special bolts will be used to properly connect each foundation pit guardrail. In order to improve wind resistance and malicious movement, a stable base should be fixed on the ground, and the expansion bolt part should be inside the ground.

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