tunnel portal

常見例句

Active earth pressure is the main load acted on tunnel portal . it's a key actor in tunnel portal design.
主動土壓力是作用在隧道洞門上的主要荷載，是進行洞門設計的關鍵因素。
Railway tunnel portal is always designed according to the standard drawing with experience. Research on new-style tunnel portal is necessary.
現(xiàn)有的鐵路隧道洞門的設計只是經(jīng)驗性地照搬標準圖的模式，而對新型隧道門的研究是必要的。
Combined with the design requirements and the trait of the tunnel portal at Beijing Shanghai high speed railway, this paper introduces a new type of tunnel portal——the tunnel portal without end wall.
本文結合京滬高速鐵路隧道門設計的要求及特點，詳細介紹了一種新穎的洞門結構形式——無端墻隧道門的結構特點、適用條件、排水系統(tǒng)及結構檢算。