As we all know, the plastic stone rockery is hollow, with steel frame welded inside and cement mortar texture modeling outside. In the construction of plastic stone rockery, the covered part belongs to concealed works, which need to be accepted and retained. Today, Yuantai environmental art will introduce to you what the concealed works in the production of plastic stone rockery include.

1，材料，隱蔽工程是有哪些材料構成的，這些材料的合格證明。大型的塑石假山項目還需要對材料進行檢測。塑石假山製作中的隱蔽工程材料包含了植筋鋼材、角鋼、槽鋼、工字鋼、鋼筋、鐵絲網等。

1. Materials: what are the materials of concealed works and the qualification certificates of these materials. Large scale plastic stone rockery projects also need to test the materials. The concealed engineering materials in the production of plastic stone rockery include planted steel, angle steel, channel steel, I-beam, reinforcement, barbed wire, etc.

2，防腐防鏽操作，塑石假山內部的鋼結在隱蔽前驗收的工作之一，就是鋼材的防腐防鏽，能用熱鍍鋅材料的就用熱鍍鋅材料，黑色的鋼材需要刷防鏽漆；鋼材焊接點需要除焊渣，然後塗刷防腐防鏽塗料。

2. Anti corrosion and rust prevention operation. One of the works of acceptance before concealment of the steel structure inside the plastic stone rockery is the anti-corrosion and rust prevention of steel. If hot-dip galvanized materials can be used, hot-dip galvanized materials shall be used, and black steel shall be painted with antirust paint; Steel welding points need to remove welding slag, and then apply anti-corrosion and anti rust paint.

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Plastic stone rockery concealed works jpg

3，結構穩固，視選用的鋼材，測試是否牢固，鋼結構是支撐整體假山的，牢固性至關重要。鋼材焊接的角度和間距是驗收的，一般設計圖紙及施工工藝上都有交代，如間距不能大於1米，選用5號以上的角鋼等。

3. The structure is stable. Depending on the selected steel, test whether it is firm. The steel structure supports the overall rockery, and the firmness is very important. The angle and spacing of steel welding are accepted, which are generally explained in the design drawings and construction process. For example, the spacing shall not be greater than 1m, and angle steel above No. 5 shall be selected.

4，預留檢修口，檢修口是後期塑石假山內部檢修的通道，是需要保留的，單人可通過，設置在不顯眼的位置，並設置通道門，後期正常情況下是關閉狀態，檢修及緊急狀態可以打開。

4. The access opening is reserved. The access opening is the internal maintenance channel of the plastic stone rockery in the later stage, which needs to be reserved. It can be passed by a single person, set in an inconspicuous position, and set the access door. In the later stage, it is closed under normal conditions, and can be opened under maintenance and emergency.

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