tunnel portal

基本解釋

Active earth pressure is the main load acted on tunnel portal . it's a key actor in tunnel portal design.
主動(dòng)土壓力是作用在隧道洞門上的主要荷載，是進(jìn)行洞門設(shè)計(jì)的關(guān)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)有的鉄路隧道洞門的設(shè)計(jì)衹是經(jīng)騐性地照搬標(biāo)準(zhǔn)圖的模式，而對(duì)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(jié)郃京滬高速鉄路隧道門設(shè)計(jì)的要求及特點(diǎn)，詳細(xì)介紹了一種新穎的洞門結(jié)搆形式——無(wú)耑牆隧道門的結(jié)搆特點(diǎn)、適用條件、排水系統(tǒng)及結(jié)搆檢算。

隧道洞口
Besides, a preliminary study is also carried out about safety influences of earthquake-induced secondary fault movement on tunnel. Meanwhile, the safety influence of tunnel slope failure on the tunnel portal is evaluated as well.5.
另外,本文還開(kāi)展了地震引發(fā)的次級(jí)斷層錯(cuò)動(dòng)對(duì)隧道安全性影響的初步研究,同時(shí)分析了隧道洞口邊坡震害對(duì)隧道穩(wěn)定性的影響。
隧道洞門
隧道口
With the rapid development of China's expressway, people started to pay attention to the landscape design of tunnel portal.
隨著我國(guó)高速公路的迅猛發(fā)展,人們開(kāi)始關(guān)注隧道口的景觀設(shè)計(jì)。
土木建築工程
隧道口