一、前言在工业建筑的生活区中,室外供水管網,一般用鑄鉄水管敷设,这些管網的总数量,以数百公尺甚至以数千公尺計,需用鋼材是相当多的,如果这些埋设于地下的鑄鉄管道能够以非金属管来代替,則既节約金屬又能降低造价,对支援工业生产,加速社会主义建設是有重大意义的。为此,我院在使用陶土管代替鑄鉄下水管的基础上,进一步作了陶土管代替鑄鉄上水管的試騐工作。在試騐过程中,由于党与領导上重 I. INTRODUCTION In the living area of ​​industrial buildings, outdoor water supply pipelines are generally laid with cast-in water pipes. The total number of these pipe networks, in hundreds of meters or even thousands of meters, is quite large If these cast-in pipes buried in the ground can be replaced by non-metallic pipes, it will not only save the metal but also reduce the cost, which is of great significance to supporting industrial production and accelerating socialist construction. To this end, our hospital in the use of clay pipe instead of cast-in pipe on the basis of the further made of clay pipe instead of cast pipe on the test work. During the experiment, due to the heavy party and leadership