tunnel clearance

Research purposes:In order to resolve the low headroom tunnel construction problem in the electrical high speed ballastless track,this paper introduces and discusses the turret tunnel low headroom suspension planning of experimental section of SunYu ballastless track.

研究目的:对遂渝线无砟轨道综合试验段中出现的低净空隧道的接触悬挂方式进行介绍和探讨。

In order to resolve the low headroom tunnel construction problem in the electrical high-speed ballastless track,by introducing and discussing the contact suspension in low headroom tunnel of the experimental section of SunYu ballastless track,this paper used the method of selection optimization comparison and selection,and put forward some reliable and feasible schemes for similar constructions.

对遂渝铁路无碴轨道综合试验段中出现的低净空隧道的接触悬挂方式进行探讨,采用方案优化比较选择的方法,对于类似的低净空隧道的处理提出了一些可靠,可行的方案,解决了遂渝线无碴轨道试验段的低净空隧道问题,取得了良好的效果。

Research purposes:In order to resolve the low headroom tunnel construction problem in the electrical high speed ballastless track,this paper introduces and discusses the turret tunnel low headroom suspension planning of experimental section of SunYu ballastless track.

研究目的:对遂渝线无砟轨道综合试验段中出现的低净空隧道的接触悬挂方式进行介绍和探讨。

This article systematically investigated the dependence of tunnel cross-section areas on vehicle sealing characters.

系统地探讨了车辆气密性能对隧道净空面积的影响规律。

The application method and feasibility of the pollutedair purifier in highway tunnel are investigated by taking a long highway tunnel as example and the economic and environmental benefits are analyzed.

本文以某一长大公路隧道为例，阐述了隧道空气净化器应用于公路隧道中的实施方法，论证了其技术上的可行性，分析了应用隧道空气净化器的社会经济效益和环境效益。

Based on direct numerical simulation(DNS),this paper,by combining numerical calculation and experimental measurement,makes a detailed study on the relationship between the arrangements of working bentch and the polluted boundaries under one-side layout laminar hood in clean tunnel.

在直接求解N-S方程进行湍流数值计算的基础上,采用数值计算与实验测量相结合的方法,对单侧布置层流罩的侧回风洁净隧道内,层流罩下工作台摆放位置与污染边界曲线的关系进行了研究。

MONITORING OF TUNNEL CLEARANCE DISPLACEMENTS UNDER CONDITION OF TBM CONSTRUCTION

TBM施工条件下隧道净空位移监测

Study of Reasonable Minimum Spacing and Supporting on Small Clear Distance Tunnel;

小净距隧道最小合理净距及支护研究

Space above one's head, as in a motor vehicle, above a doorway, or in a tunnel;clearance.

净空高度如在机动车内、门上方或隧道中的某人头部上端的空间；空间

clearway acting as buffer

用作保险道的净空道

Research on Reasonable Clear Interval and Its Construction Method of the Small Interval Tunnel;

小净距隧道合理净距及其施工方法研究

Discussion on Reasonable Distance of Tunnel with Small Spacing in Ⅴ Grade Rock

Ⅴ级围岩下小净距隧道合理净距的探讨

The Study of Construction Mechanics of Neighborhood Tunnel with Large Span;

大跨度小净距隧道施工力学行为研究

Analysis of Structural Stress and Strain of Small Distance Tunnels Excavation by Using Numerical Simulation Method

某小净距隧道施工开挖数值模拟分析

compressed air tunnelling method

压缩空气开挖隧道法

The Research of Contrast on Structure and Construction Schemes between Double-arch Tunnel and Neighbourhood Tunnel in Expressway;

高速公路双连拱隧道和超小净距隧道结构比较研究

Contrastive Study on Construction Mechanical Behavior for Highway Multi-Arch Tunnel and Neighborhood Tunnel;

公路连拱隧道与小净距隧道施工力学特征对比研究

Comparative Study on Seismic Dynamic Response for Expressway Multi-Arch Tunnel and Neighborhood Tunnel

公路连拱隧道与小净距隧道地震动力响应对比研究

Construction technique of small spacing three lane road tunnel with soft surrounding rock

软弱围岩小净距三车道公路隧道施工技术

Research on the Long Tunnel and Tunnel Group s Aerodynamic Algorithm and Its Application;

长大隧道、隧道群空气动力效应算法研究及应用

Research about Blasting Vibration Speed of Long Distance Little Space Tunnel;

长距离小净距隧道爆破开挖振动标准的研究

Research on Stability of Surrounding Rock and Mechanical of Middle Rock for Small Spacing;

小净距隧道围岩稳定性及中夹层力学行为研究

Excavation Numerical Simulation and Disease Management in Inducer of Neighborhood Tunnel;

大跨度小净距隧道进口段开挖及病害处理研究

Technical Study on Mechanical Behaviour of the Surrounding Rock, Monitoring and Measurement for Construction of Twin Tunnels with Small Spacing;

小净距隧道围岩力学行为与监控量测技术研究