临边护栏全部由钢结构组成。钢材采用标准材料，制作严格按图施工，尺寸正确，焊接点牢固，达到防护之目的，临边护栏下部档架板采用黄、黑间隔

The edge guardrail is entirely composed of steel structures. The steel is made of national standard materials, constructed strictly according to the drawings, with correct dimensions and firm welding points to achieve safety protection. The lower bracket plate of the edge guardrail is separated by yellow and black intervals

基坑护栏由防护网片和立柱组成。基坑围挡护栏防护网片由2cm×4cm方管焊接组成，单片尺寸1.1米×1.7米，两端设有跨耳用Φ10螺栓与立柱连接固定，跨耳与上下边缘距离为15cm。

The foundation pit guardrail is composed of protective mesh and columns. The protective mesh of the foundation pit fence is composed of 2cm x 4cm square pipes welded together, with a single piece size of 1.1 meters x 1.7 meters, and two ends are equipped with cross ears for use Φ 10 bolts are used to connect and fix the column, with a distance of 15cm between the ear and the upper and lower edges.

立柱采用8cm方管 高度1.3m，底部有法兰（8mm×15cm×15cm钢板）每个法兰盘设4个螺栓孔、顶部封闭，与地面用Φ14膨胀螺栓固定。

The column adopts an 8cm square tube with a height of 1.3m, and has a flange at the bottom (8mm x 15cm x 15cm steel plate). Each flange is equipped with 4 bolt holes, and the top is closed. It is connected to the ground Φ Fix with 14 expansion bolts.

安装后，护栏上边与立柱平齐，下边距地面20cm，两立柱间距2米.所使用原材料均采用标准材料，制作严格按图施工，尺寸正确，焊接点牢固，达到防护之目的。

After installation, the upper edge of the guardrail is flush with the column, and the lower edge is 20cm from the ground. The distance between the two columns is 2 meters. The raw materials used are all national standard materials, and the construction is strictly in accordance with the drawings. The dimensions are correct, and the welding points are firm, achieving the purpose of safety protection.

网片设计为黄色、立柱为红色，均为喷绘，以达到红白相间的警示效果。网片网格为50*50mm，钢丝直径为3.5mm。

The screen design is yellow, and the pillars are red, all painted to achieve a red and white warning effect. The mesh size is 50 * 50mm, and the diameter of the steel wire is 3.5mm.

可移动基坑护栏100米，固定护栏1361米，基坑围挡护栏可移动护栏与固定护栏尺寸一致两端固定处加20cm三角支撑。支撑稳固，8cm方管支撑。

The movable foundation pit guardrail is 100 meters long, and the fixed guardrail is 1361 meters long. The movable and fixed guardrails of the foundation pit enclosure guardrail have the same size as the fixed guardrail, and a 20cm triangular support is added at both ends of the fixed position. Stable support, supported by an 8cm square tube.

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