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长距离钢管顶进是为适应大口径工业管道穿越江河通向水域的需要,从七十年代开始发展起来的一项新技术。上海市基础工程公司先后承担了由建设部和上海市分阶段下达的这项新技术开发任务。1978年研制成功的三段双铰型工具管解决了百米
Long-distance steel pipe jacking is a new technology developed from the seventies in order to meet the needs of large diameter industrial pipelines crossing rivers and rivers into the waters. Shanghai Basic Engineering Corporation has successively undertaken this new technology development task issued by the Ministry of Construction and Shanghai in phases. The three-stage double-hinge tool tube developed in 1978 has solved 100 meters