钢管公称直径(mm)钢管外径×壁厚(mm)保温管外径×壁厚(mm)管中心距E(mm)沟宽B(mm)垫砂厚C(mm)机动车道非机动车道DN40D48×3110×2.53408502000.80.7
DN50D60×3.5140×33609002000.80.7
DN65D76×4140×33809202000.80.7
DN80D89×4160×3.24009602000.80.7
DN100D108×4200×3.940010002000.80.7
DN125D133×4.5225×4.445011002000.80.7
DN150D159×4.5250×4.9450110020010.7
DN200D219×6315×6.2500130020010.7
DN250D273×6365×6.6580140025010.7
DN300D325×7420×7660150025010.7
DN350D377×7500×7.872017002501.20.9
DN400D426×7550×8.878018003001.20.9
DN450D478×7600×8.890020003001.20.9
DN500D529×8655×9.8100021003001.20.9
DN600D630×8760×11106024003001.31
DN700D720×9850×12125027003001.31
DN800D820×10960×14135029003001.31.1
DN900D920×121055×14145031003001.31.1
DN1000D1020×131155×14155033103001.31.1最小覆土深度(m)道保温厚度
315565481184619200.01503475365615461288673250.0187.53512.5420670481394724300.02253550500750621526776350.0262.53587.5550800621626826400.03003625600850611728878450.0337.53662.5655905631834929500.0375370076010106520401030600.0450377585011006522201120700.0525385096012107024301220800.06003925105513056826241319900.067540001155140568282414191000.0750