We excavated the mountain for a tunnel.
我们开山凿洞，修建隧道。
Tunnel in hard rock may be excavated in whole section by using chiseling rock trolley to drill small holes.
在硬岩中中隧道可采用凿岩台车钻眼，进行全断面开挖。
The diversion tunnel of Geheyan Project on the Qingjiang river is one of successfully excavated large-scale underground cavities in the carbonate rock regions in China at present.
清江隔河岩水利枢纽导流隧洞是我国目前在碳酸盐岩地区开挖大跨度地下洞室的成功工程之一。
In many projects, like the Simplon, for example, a small pilot tunnel is driven before the full diameter of the tunnel is excavated.
在许多隧道工程中，经如辛普龙大隧道，都要在隧道全面开挖前打一个导洞。
The diversion tunnel section excavated by tunneller is buried deeply, the under ground water level is high, the activities of underground water is lively, and Karst topography is quite developed.
采用掘进机开挖的引水隧洞洞段埋藏较深，地下水位高，地下水活动强烈，岩爆频繁，岩溶较为发育。
A narrow entrance tunnel leads into the main chamber which consists of a flat area with elevated sleeping platforms excavated from snow.
一个狭窄的入口隧道通向主要空间部分，这里是从积雪中高高架起的一个平台。
The deformation of surrounding rock mass has prominent rheological behavior while the tunnel was excavated.
软弱岩体隧道开挖后，围岩变形具有异常显著的流变性。
The tunnel consists of a single tube with four lanes, and was excavated with the layer-step method, which is a new attempt in constructing the tunnel with large across span.
隧道为单洞四车道，采用分层台阶法进行开挖，在大跨度隧道施工中是一种新尝试。
In the end of the paper, a tunnel excavated under a rock slope is modeled by tetrahedral elements, the example demonstrate the validity of above methods.
最后本文用一边坡洞室开挖的算例验证了编制程序的有效性。
When the tunnel is excavated, the surrounding rock will be damaged and the damage zone will be formed around the profile where the acoustic velocity will weaken.
隧洞开挖以后围岩会出现损伤，并在洞周形成开挖损伤区，在损伤区范围内声波波速会出现衰减。
By means of the least square method, the initial stress field parameters are identified according to the measured data of transformation of the rock when the underground tunnel is excavated.
利用地下隧道开挖后变形收敛观测数据，采用最小二乘法研究了岩体初始应力场识别问题。
By means of the least square method, the initial stress field parameters are identified according to the measured data of transformation of the rock when the underground tunnel is excavated.
利用地下隧道开挖后变形收敛观测数据，采用最小二乘法研究了岩体初始应力场识别问题。
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