钢筋混凝土（化学）污水管道闭水试验计算公式污水检查井水面下降数规范允许渗漏量试验长度检查井半径检查井个数钢筋混凝土管道规范允许渗漏量管道内径允许渗漏量化学建材管道规范允许渗漏量允许渗漏量管道内径常数备注cm/1h3.363.944.804.744.783.653.45m³/24h.km35.3535.3535.3535.3535.3535.3527.95km0.1120.1970.1200.2370.1990.1520.116m0.6250.6250.6250.6250.6250.6250.5个4636555mm20030040050060070080090010001100120013001400150016001700180019002000m³/24h.kmm³/24h.km17.6021.6225.0027.9530.6033.0035.3537.5039.5241.4543.3045.0046.7048.4050.0051.5053.0054.4855.900.921.381.842.302.763.223.684.144.605.065.525.986.446.907.367.828.288.749.20mm200300400500600700800900100011001200130014001500160017001800190020000.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.00460.0046