tunnel portal area 隧道入口范围
Tunnel Portal logo 隧道门户
tunnel portal section 东津水电站
new-style tunnel portal 新型隧道门
wing wall tunnel portal 翼墙式洞门
facilities of tunnel portal 隧道洞口设施
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,本文还开展了地震引发的次级断层错动对隧道安全性影响的初步研究,同时分析了隧道洞口边坡震害对隧道稳定性的影响。
参考来源 - 高烈度地震下隧道破坏机制及抗震研究With the rapid development of China's expressway, people started to pay attention to the landscape design of tunnel portal.
随着我国高速公路的迅猛发展,人们开始关注隧道口的景观设计。
参考来源 - 小河至安康高速公路隧道群洞口景观规划设计的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It is easily collapsed for shallow and unsymmetrical large-span tunnel near portal in soft rock.
软岩地区浅埋偏压大跨度隧道进口段极易塌方。
Based upon the shield construction practice in the portal section of South Tube of Yanan Donglu Tunnel, this paper demonstrates the technology for slurry balance shield passing through freezing zone.
本文以上海延安东路隧道南线盾构进洞段工程施工为背景，论述了泥水平衡盾构穿越冻结加固区的施工技术。
Objective To study the therapeutic effect of transverse carpal ligament release on carpal tunnel syndrome (CTS) with arthroscopic "two-portal" technique.
目的探讨关节镜下“双孔道”技术腕横韧带减压对腕管综合征的疗效。
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