The safety of the construction site is what we must do, so how can we really play a protective role? The construction of the adjacent guardrail is a very key operation, so the construction of the adjacent guardrail to meet what conditions?

　　防護欄桿應由上下橫桿和欄桿柱組成。上桿離地高度為1.0~1.2m，下桿離地高度為0.5~0.6m。坡度大于1：2.2的水平，護欄應高1.5m，并加設網。除設計計算外，當橫桿長度大于2m時，必須加設欄桿柱。

　　The protective railing shall be composed of upper and lower rail and railing column. The upper rod is 1.0-1.2 m above the ground, and the lower rod is 0.5-0.6 m above the ground. If the slope is greater than 1:2.2, the guardrail should be 1.5m high and a safety net should be added. In addition to the design calculation, when the length of the crossbar is greater than 2m, the railing column must be added.

　　欄桿的固定應符合以下要求：

　　The railings shall be fixed according to the following requirements:

　　基坑周圍固定時，可用鋼管打入地下50~70cm深。鋼管與邊緣的距離不應小于50cm。在基坑周圍使用鋼板樁時，可以在鋼板樁的外側打入鋼管。

　　When the foundation pit is fixed around, the steel pipe can be used to drive into the underground 50~70cm deep. The distance between steel pipe and edge should not be less than 50cm. When steel sheet piles are used around foundation pits, steel pipes can be driven into the outer side of the steel sheet piles.

　　固定在混凝土地板、屋頂或墻壁上時，預埋件可用鋼管或鋼筋焊接牢固。使用竹木欄桿時，可在預埋件上焊接30cm長∟50×5角鋼，并在上下兩側鉆孔，然后用10mm螺栓將竹木件固定。

　　When fixed on concrete floor, roof or wall, the embedded parts can be welded firmly with steel pipe or steel bar. When using bamboo railings, weld 30cm ∟50×5 Angle steel on the embedded parts, drill holes on the upper and lower sides, and secure the bamboo and wood parts with 10mm bolts.

　　在磚塊或砌塊等砌體上固定時，可預先搭好規(guī)格合適的80×6彎曲扁鋼作為預埋鐵的混凝土砌塊，然后按上述方法固定。

　　When fixed on masonry such as bricks or blocks, 80×6 bending flat steel of suitable specifications can be pre-built as concrete blocks with embedded iron and then fixed in accordance with the above method.

　　欄桿立柱的固定及其與水平面的連接，整體結構應使護欄在上桿上的任意位置，能夠承受任何方向1000N的外力。當欄桿位置容易發(fā)生擁擠、車輛撞擊或物體碰撞等情況時，應增加欄桿截面或加密柱間距。

　　The railing column is fixed and connected with the horizontal plane. The overall structure should make the guardrail at any position on the upper pole and be able to withstand the external force of 1000N in any direction. When the position of the railing is prone to congestion, vehicle collision or object collision, the section of the railing or the spacing of the column should be increased.

　　臨邊護欄必須自上而下用豎網封閉，或在欄桿下設置高度不小于18cm的緊密固定的護腳板或高度40cm的護腳板。如果護趾板和護欄有孔洞，則不應大于25mm。板與圍欄底部之間的間隙不應大于10mm。接收臺兩側的欄桿必須自上而下用豎網或竹柵欄懸掛。

　　Protective railings must be closed with vertical nets from top to bottom, or a tightly fixed foot guard with a height of no less than 18cm or a foot guard with a height of 40cm shall be installed under the railings. If the toe guard and guardrail have holes, they should not be larger than 25mm. The gap between the plate and the bottom of the fence should not be greater than 10mm. The railing on either side of the receiving station must be hung from top to bottom with vertical nets or bamboo fences.

　　當邊緣外側面向街道時，除防護欄桿外，開敞立面必須采用掛保險網或其他可靠措施將其全封閉。

　　When the outer edge faces the street, in addition to protective railings, the open facade must be fully enclosed by hanging safety nets or other reliable measures.

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