pneumatic engineering methodとは 意味・読み方・使い方

To provide a pneumatic engineering method and a pneumatic cover device allowing personnel and materials to be transported in and out of a manhole under a condition good in workability while keeping air compressed inside a manhole to suppress infiltration of ground water, during seismic isolation work of the joint between an existing manhole and a sewage pipe in ground with high water content.例文帳に追加

高含水地盤に既設のマンホールと下水道管との接合の耐震化工事中、地下水浸入抑制のためマンホール内部の空気を加圧した圧気状態としたまま、作業性の良い構成で人員や機材をマンホール内に搬入出可能とするマンホール作業用圧気工法と圧気蓋装置の提供。 - 特許庁