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一、引言随着城市建设的发展,市政管道采用“顶管施工”方法,日益普及。特别是在城区施工,由于受交通、市容的严格限制,顶管施工方法就更显其优越性。五十年代,我们开始采用顶管施工,三十多年的发展取得相当进步,这一方法得到普及,仅八○年一年市政四公司所接受的顶管施工任务约有10公里之多,预计今后将会
I. INTRODUCTION With the development of urban construction, municipal pipelines adopt the method of “pipe-jacking construction” and are becoming increasingly popular. Especially in the construction of urban areas, due to the strict restrictions on traffic and appearance, the construction method of the pipe jacking is even more advantageous. In the 1950s, we began to use pipe jacking construction. Over the past 30 years, we have made considerable progress. This method has been popularized. In the year 1980 alone, the top four pipe construction tasks accepted by the municipal four companies are about 10 kilometers. It is expected that in the future