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- The difficulty also becomes greater.The depth of embedment at the tunnel portal is shallow. 隧道的长度、断面都是空前的,难度也大于以前。
- Because of the influence of the engineering geologic condition, hydrogeological condition and artificial factor, it is easy to have landslide at tunnel portal. 由于受工程地质条件、水文地质条件及人为因素等影响,隧道洞口施工过程中易发生洞口滑坡。
- The tunnel portal earth pressure is divide into two parts at tunnel lining height, the earth pressure intensity-formula at upper part, below part, general earth pressure formula and earth pressure action point formula are derived. 以隧道衬砌的高度为界，将隧道洞门土压力计算分为上、下两部分，推导出上部上压力强度、下部土压力强度、总土压力及土压力作用点的计算公式。
- Reliability Analysis of Wing Wall Tunnel Portal 翼墙式隧道洞门可靠性分析
- tunnel portal in unfavourable geological section 洞口不良地质段
- up bamboo-trnncating tunnel portal 正削式隧道门
- up bamboo-truncating tunnel portal 正削式洞门
- Stress Mechanism of Down Bamboo-truncating Tunnel Portal 逆斜切式隧道门的受力机理
- Construction Technology of Entering Tunnel Portal without Support 隧道洞口段无支撑方式进洞施工技术
- RELIABILITY ANALYSIS OF RAILWAY TUNNEL PORTAL STRUCTURES 铁路隧道洞门可靠度分析
- The portal of the mansion looks magnificent. 这座大厦的正门看上去富丽堂皇。
- They are building a submarine cable tunnel. 他们正在建设一条海底电缆隧道。
- They are digging through the hill to make a tunnel. 他们正在凿山建一条隧道。
- The kid dug a tunnel in the sand. 小孩在沙堆里挖了一个地道。
- A simple model for the dispersion of pollutants from a road tunnel portal 公路隧道口污染物扩散的简单模式
- Construction Technology of Wukengba Tunnel Portal through Waste Area 乌坑坝隧道出口穿过弃碴体洞口的施工技术
- The two lanes merge going into the tunnel. 两条车道会合后引入隧道。
- The truck cleared the tunnel safely. 卡车安全地通过了隧道。
- He has to stoop to get through the tunnel. 他得弯下腰走过地道。
- The roar of the train reverberated in the tunnel. 火车的轰隆声在隧道里回荡。
