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1979年9月国营钢管公司投产了一套新型顶管机组,其结构和工艺已有专文评述。本文所介绍的是在这套顶管机组中迄今所获得的金属变形和轧管用金属材料方面的经验。
September 1979 State-owned steel pipe company put into operation a new type of pipe jacking unit, the structure and technology has been an article review. Described in this paper is the experience gained so far with this jacking unit in the metal deformation and rolling metal materials used.