管(guan)道綜(zong)合材(cai)(cai)料設計(ji)(ji)附加裕(yu)量每(mei)個工(gong)程(cheng)各(ge)不相同(tong)(tong)，但是需考慮：安(an)裝時(shi)的損耗、設計(ji)(ji)用(yong)量的統計(ji)(ji)誤(wu)差、運(yun)輸和保管(guan)中的差錯，同(tong)(tong)時(shi)需避免設計(ji)(ji)和采(cai)購(gou)層(ceng)層(ceng)加碼，造(zao)成(cheng)浪費。具體見《壓(ya)力管(guan)道設計(ji)(ji)及工(gong)程(cheng)實例(li)》一書第四章詳(xiang)述(shu)。某管(guan)道綜(zong)合材(cai)(cai)料設計(ji)(ji)附加裕(yu)量舉例(li)見表9.1.11。
