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东欢坨副井表土冻结段为中德联合设计,井壁结构为德方设计、联合施工,本文除简述结构特点外,对柔性复合井壁施工中的关键环节进行了叙述,并对该段井壁结构和施工成果进行了分析。
The frozen section of Donghuan Tuo auxiliary well is a Sino-German joint design. The wellbore structure is designed by German side and co-constructed. In addition to the brief description of structural features, this paper describes the key links in the construction of flexible composite shaft lining, Section shaft wall structure and construction results were analyzed.