Apparatus and methods for underground structures and construction thereof

摘要: Described herein are apparatus, systems and methods useful in forming underground vertical structures. Methods described for constructing an structure, comprising the steps of excavating soil to a sufficient depth create circular void accommodate plurality segments; assembling ring shaped structure connecting outside surface with said void, thereby securing soil; earth beneath second structure; repeating b-d one or more additional structures downward into below already formed until predetermined is reached; structure. Systems perform above also disclosed.