pilot tunnel

用法例句

On advance geological forecast of tunnels on karst or varied geological conditions;

概论岩溶或地质复杂隧道隧洞地质灾害超前预报技术

Plug shape optimization of diversion tunnels of Shuibuya Project;

水布垭导流隧洞堵头体型的优化

Diversion tunnel design for Xiaorongjiang hydraulic complex;

小溶江水利枢纽导流隧洞设计

Analysis of stability of plug for diversion tunnels;

导流隧洞堵头稳定性分析

Stress on Class tunnel restorations of the first mandibular molar;

下颌第一恒磨牙隧道洞型的应力分析

The practical method of tunnel entrance landscape design and its design procedure are presented in this paper.

提出了隧道洞口景观设计的实用方法及设计流程,并重点讨论了目前洞口景观设计的重要性和发展趋势;设计中如何采集洞口景观数据及如何利用洞口景观数据库;以及如何进行洞口景观点评价等在设计中应注意的几个问题。

For ensuring the stabilization of slope around tunnel entrance, the tunnel design criterion gives out the definite demands to solpe gradient and excavating high, but these demands are confined only the sort of surrounding rock, can not judge the influence of layer property of surrounding rock and ground water.

为了保证隧道洞口边仰坡的稳定 ,隧道设计规范对刷坡坡率和开挖高度有一定的控制要求 ,但这种要求仅局限于围岩的类别 ,而对围岩的层理性状和地下水对坡体稳定性的影响不能作出判断。

Research purposes:The construction of tunnel entrance is the key part of the whole engineering.

研究目的:隧道洞口段施工是整个隧道工程施工的关键。

Construction diversion tunnel(in combination with tailrace tunnel) design of Xiluodu Hydropower Station

溪洛渡水电站导流隧洞(与尾水洞结合段)设计

Construction Technology of Large Cross-Section Diversion Tunnel of Shuibuya Water Conservancy;

水布垭水利枢纽特大断面导流隧洞施工技术

Optimization of Construction Schemes of Diversion Tunnel in Jinping Second Cascade Hydropower Station

锦屏二级水电站导流隧洞施工方案优化

Progress of design theory and safe operation technology for diversion tunnels

施工导流隧洞设计理论与安全运行技术进展

Analysis of external water pressure and construction cold joint influence on diversion tunnel

导流隧洞外水压力与施工冷缝的影响分析

Finite element analysis of combined support system of steel arch shelf and lock bolting with shotcrete in diversion tunnel

导流隧洞钢拱架与喷锚支护体系有限元分析

Analysis on surrounding rock stability and supporting structure for diversion tunnel of Gongguoqiao Hydropower Station

功果桥导流隧洞围岩稳定与支护结构分析

Application of New Austrian Tunneling Method to construction of diversion tunnel for Dalong Water Control Project

新奥法在大隆水利枢纽工程导流隧洞施工中的应用

Comprehensive Construction Technique Study and Analysis in the Condition of Complicated Geology of Diversion Tunnel with Extra-large Section;

复杂地质条件下特大断面导流隧洞综合施工技术研究与分析

FEM CALCULATION OF HIGH INLET SLOPE OF DIVERSION TUNNEL ON RIGHT BANK OF CHANGHEBA HYDROPOWER STATION

长河坝水电站右岸导流隧洞进口高边坡稳定性有限元计算分析

Study on Variable Fuzzy Evaluation for Stabilizing of Surrounding Rock in Diversion Tunnel

基于多目标可变模糊评价法的导流隧洞围岩稳定性分级研究

The application of the New Austrian Tunneling Method to the tunneling of the diversion tunnel for Dalong Water Control Project is described herein.

主要介绍新奥法施工在三亚大隆水利枢纽工程导流隧洞开挖中的应用。

The Stability Analysis of Soft Surrounding Rocks of Big-span Diversion Tunnel and the Research on the Support Measure in Goupitan Hydroelectric Station;

构皮滩水电站大跨度导流隧洞软岩段围岩稳定性分析及支护措施研究

Monitoring and Measurement Technology of the Emergence of Shallow Buried Unsysmmetrical Loaded Small Guide Hole

浅埋偏压隧道小导洞出洞施工与监控量测技术

Numerical Simulation of Turbulent Flow of Energy Dissipater in Free Flow Tunnel;

无压隧洞内消能工湍流数值模拟研究

Monte Carlo Solution of Two-Dimensional Potential Flow in Outlet Structure of Pressure Tunnel;

有压隧洞出口段水流的二维势流蒙特卡罗解

In some cases, work on the main tunnel progresses a few meters behind the pilot tunnel so that the latter provides ventilation, always a major problem in tunneling operations.

有时，主隧道的掘进紧跟在导洞掘进后面几米，由导洞提供通风。通风一直是隧道掘进中的大问题。

A guide led us through the maze of tunnels in the cave.

向导带领我们通过山洞里如迷宫般的隧道。