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上海石油化工总厂第二热电厂是30万吨乙烯工程配套项目,占地43.4公顷、总装电量22.5万千瓦。因是火力发电,钢筋混凝土烟囱筒身高达210米,为上海之最。烟囱建在围堰不足五年的淤泥质粘土、亚粘土层上。打入450×450毫米、24.5米长钢筋混凝土方桩357根,采用正八边形的钢筋混凝土承台基础,厚2.5～3.0米,基础埋深为-8.80米,直径36.7米(详见图一)。
The second thermal power plant of Shanghai Petrochemical Complex is a 300,000-ton ethylene project, covering an area of 43.4 hectares and a total installed capacity of 225,000 kilowatts. Because of thermal power, the reinforced concrete chimney barrel is as high as 210 meters, which is the highest in Shanghai. The chimneys were built on silty clay and sub-clay layers that were less than five years old. Enter 480 square feet of 450×450mm and 24.5m length of reinforced concrete square piles, using a regular octagonal reinforced concrete platform foundation, 2.5 to 3.0 meters thick, with a base depth of -8.80 meters and a diameter of 36.7 meters (see Figure 1 for details) ).