目(mu)前，鋼(gang)套鋼(gang)蒸汽(qi)(qi)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)越來越多(duo)，直(zhi)接埋(mai)(mai)置(zhi)(zhi)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)，有時會在(zai)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)網之間出現(xian)交叉敷設(she)(she)的(de)(de)情況。這一(yi)(yi)(yi)(yi)次(ci)我們需要(yao)(yao)利用(yong)(yong)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)來鋪設(she)(she)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)。如何規(gui)范(fan)溝(gou)槽(cao)的(de)(de)設(she)(she)計(ji)?套鋼(gang)蒸汽(qi)(qi)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)小(xiao)編來為(wei)(wei)大(da)家介紹一(yi)(yi)(yi)(yi)下通(tong)(tong)(tong)行(xing)地(di)溝(gou)的(de)(de)設(she)(she)計(ji)要(yao)(yao)點(dian)。在(zai)鋼(gang)套鋼(gang)直(zhi)埋(mai)(mai)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)沿不(bu)允許開挖的(de)(de)路面(mian)敷設(she)(she)，或鋼(gang)套鋼(gang)直(zhi)埋(mai)(mai)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)數(shu)(shu)量過多(duo)，管(guan)(guan)(guan)(guan)(guan)(guan)(guan)徑較(jiao)大(da)時，就需要(yao)(yao)采(cai)用(yong)(yong)通(tong)(tong)(tong)行(xing)地(di)溝(gou)了。通(tong)(tong)(tong)行(xing)地(di)溝(gou)每隔(ge)200m應設(she)(she)置(zhi)(zhi)出入口(kou)，但(dan)裝有蒸汽(qi)(qi)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)的(de)(de)溝(gou)渠每隔(ge)100m應設(she)(she)一(yi)(yi)(yi)(yi)個人孔。便于(yu)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)出現(xian)后(hou)及時修復。并每隔(ge)200m需設(she)(she)置(zhi)(zhi)一(yi)(yi)(yi)(yi)個寬度為(wei)(wei)大(da)于(yu)1500px以上(shang)的(de)(de)安裝孔，從這里讓管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)進入管(guan)(guan)(guan)(guan)(guan)(guan)(guan)溝(gou)中(zhong)。通(tong)(tong)(tong)行(xing)地(di)溝(gou)小(xiao)凈(jing)斷面(mian)為(wei)(wei)1.2m*1.8m，通(tong)(tong)(tong)道(dao)(dao)(dao)凈(jing)寬一(yi)(yi)(yi)(yi)般為(wei)(wei)0.7m，橫(heng)貫地(di)溝(gou)斷面(mian)的(de)(de)支架下面(mian)的(de)(de)凈(jing)高(gao)度要(yao)(yao)大(da)于(yu)1.7m。并且通(tong)(tong)(tong)行(xing)地(di)溝(gou)溝(gou)底坡(po)度與主管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)坡(po)度一(yi)(yi)(yi)(yi)致，坡(po)向集(ji)水坑。以上(shang)就是通(tong)(tong)(tong)行(xing)地(di)溝(gou)的(de)(de)設(she)(she)計(ji)施工方(fang)法，在(zai)鋼(gang)套鋼(gang)直(zhi)埋(mai)(mai)保(bao)(bao)(bao)溫(wen)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)數(shu)(shu)量較(jiao)多(duo)的(de)(de)地(di)方(fang)可以采(cai)用(yong)(yong)這種方(fang)式來鋪設(she)(she)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)網。這種方(fang)式施工相對簡單，而且易于(yu)后(hou)期的(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)道(dao)(dao)(dao)維(wei)護。

管(guan)道運(yun)行不正(zheng)常時，該(gai)部(bu)位(wei)也易出現(xian)了。首先是對"鋼(gang)套鋼(gang)"保(bao)溫(wen)(wen)結構(gou)，緣于溫(wen)(wen)升(sheng)引發了的(de)(de)外鋼(gang)管(guan)熱應力非常大(da)(da)，鋼(gang)筋混凝(ning)土支墩的(de)(de)尺寸也非常大(da)(da)，該(gai)部(bu)位(wei)也更易顯現(xian)。對"鋼(gang)套鋼(gang)"保(bao)溫(wen)(wen)結構(gou)，采用(yong)內(nei)固定結構(gou)具備異(yi)常大(da)(da)的(de)(de)優越性。