山区高速公路受地形、地貌及地质的影响。
Mountainous Highways are impacted by topography, landscape and geomorphology.
首先，选取了山区高速公路交通安全综合评价指标。
Firstly, comprehensive evaluation indexes of freeway in mountainous areas were selected.
安全事故的机理分析是山区高速公路施工安全评价的基础。
Mechanic analysis of safety accidents is the foundation of construction safety evaluation of mountainous freeway.
通过对山区高速公路行车速度进行分析，提出限速的必要性。
Through analysis to driving speed in mountainous area expressways, this paper summons the necessity of speed limiting.
山区高速公路的桥型选择受诸多因素的影响，是一个复杂的问题。
The selection of expressway bridge style in mountainous region is affected by many factors and is a complex problem.
山区高速公路的地质问题是决定施工进程和工程质量的关键因素。
The geological work of mountain expressway is a pivotal factor which influences the construction course and the project′s quality.
其次，建立了基于BP神经网络的山区高速公路事故多发点鉴别模型。
Secondly, the identifying model of freeway hazardous location in mountainous areas was established based on BP neural network.
山区高速公路经由的地形及道路线形均十分复杂，安全问题也日益突出。
Especially for freeways in mountainous area, whose alignment is very complex and the safety of which is more and more prominent.
结合工程实例，进行山区高速公路施工危险源辨识、风险评价和控制策划。
Construction hazard identification, risk assessment, control plan is implemented combined a project.
所以要设计成功一条山区高速公路，设计好其中的桥梁部分就显得十分重要。
Therefore, to design a mountainous expressway successfully, it is important to design the part of Bridges successfully.
综合分析国内外对事故多发点的界定，确定了山区高速公路事故多发点的定义。
Based on the comprehensive analysis of the definition of hazardous location at home and abroad, this paper defined the hazardous location in mountainous area.
但长期以来山区高速公路施工安全问题一直是困扰业界人士和广大学者的难题。
But safety problems in freeway construction of mountainous region have puzzled people in the industry and scholars for a long time.
“水”是众多公路病害的诱发原因，特别是山区高速公路中水的危害不容忽视。
Study of causing distresses of expressway in mountainous area and measures for control and prevention;
在山区高速公路建设中，因受地形地物限制，将线路敷设在陡坡上的情形较为常见。
Due to the limitation of terrain and culture on construction of expressways in mountainous areas, it is common to lay out lines on abrupt slope.
在山区高速公路长大下坡路段，经常出现载重货车因制动失效，而发生交通事故的现象。
The traffic accidents, made by the heavy-duty lorry and due to breaking failure, happen from time to time on the downhill path of mountainous expressway.
上述研究成果对建立我国山区高速公路限速标准和限速路段划分的方法具有重要的参考价值。
The above results have important reference values to establish speed-limit standards and road limit segmentation methods of mountainous expressway in China.
山区高速公路地下水文复杂多变，本文总结了不同地形地质条件下的地下排水设施布设方案。
Groundwater status of mountain freeway is very complex, the paper summarized scheme of how to layout underground drainage facilities in the different topographic and geologic conditions.
在山区高速公路的一些事故多发路段，在路侧净空足够的情况下，安装缆索护栏能起到更好的安保效果。
Some accident-prone sections of the mountains expressway which have sufficient clearance to install cable guardrail will play better security results.
随着我国山区高速公路里程的不断增加，爬坡车道已成为提高特定纵坡路段通行能力和安全性的一种有效措施。
With China's mountain freeway mileage increasing, The climbing lane has become an effective measure to improve the capacity of the specific longitudinal section and security.
随着我国山区高速公路里程的不断增加，爬坡车道已成为提高特定纵坡路段通行能力和安全性的一种有效措施。
With China's mountain freeway mileage increasing, The climbing lane has become an effective measure to improve the capacity of the specific longitudinal section and security.
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