Assessment on Pollution of Heavy Metal in Soil along Road with Method of the index of geoaccumulation;
积累指数法对公路旁土壤中重金属污染的评价
The common problems and management method of mountain road culvert;
山区公路涵洞常见问题及处理方法
The analysis of the line-style target for road safety evaluation;
公路安全性评价线形指标分析
The study of introducing public participation to environment-supervision in construction time of highway;
公路施工期环境监理引入公众参与的探讨
Research of highway environment-supervision implement in construction period;
公路施工期环境监理实施研究
Evaluation on Impact of Highway Construction on Environment;
公路建设对环境影响的评价
This paper introduces the connotation,developing history,examples and application of engineering methods in domestic and foreign expressway construction,and proposes some suggestions for work.
介绍生态工法的内涵、发展历史、工法实例及在国内外公路建设中的应用,提出一些工作建议,并指出:在观念上要从人定胜天向善待自然、尊重自然转变;在建设工法上应从"传统工法"向"生态工法"转变。
In this paper,types of corrosion to riverside expressway sub-grade are introduced from the 2 aspects in wash-off of sub-grade by water flows and in sub-grade collapses,mechanism of corrosion to riverside sub-grade is analyzed, the relationship between the 2 aspects is described.
从水流对路基的淘刷和路基崩塌2方面介绍公路河湾路基的侵蚀类型,分析沿河路基的侵蚀机理,阐述两者之间的关系。
In combination with maintenance and reinforcement project for two bridges in Chongqing,this paper carries out a detailed research to high performance expressway structural concrete,including raw material property,mixing ratio design,physical & mechanical performance,stress & corrosion features,micro-structure analysis,construction process and quality control,etc.
结合唐山市2座大桥维修加固工程,对高性能化公路结构物混凝土从原材料特性及配合比设计方法、物理力学性能、应力腐蚀特性、微结构分析、施工工艺与质量控制等方面进行了较为细致的研究,通过试验和分析结构物的运营现状,得出高性能混凝土不仅能延长公路结构物的使用寿命,还可减少养护维修费用,对于公路建设可持续发展具有重要意义。
On the construction supervision measures in environmental protection of roads;
浅谈公路环境保护工程施工监理措施
We reviewed the effects of roads to wildlife and the prophylactico-therapeutic measures.
公路建设在促进社会、经济发展的同时,也产生了严重的负面作用;就公路建设对野生动物产生的影响及防治措施进行了综述;公路建设对野生动物产生的影响包括干扰、公路致死、阻碍与回避、生境破碎化、生物入侵等;其防治措施包括路径选择、野生动物通道、补偿和营运期管理等。
This Paper analyzes the causes of automobiles bounces at the end of the bridges on high-class roads, and proposes some preventions.
分析了高等级公路产生桥头跳车病害的原因,提出了防治措施。
The toll rate directly influences the traffic volume on toll highways, and hence influences the benefits of the projects.
公路收费标准的高低直接影响使用收费公路的交通量的大小 ,进而影响项目效益的发挥。
The characteristic of mixed traffic flows is analyzed by taking mixed traffic flows as the basic situation of traffic flows of highways in China.
以我国混合车流作为高等级公路交通流的基本构成，分析混合车流的交通特性，采用实地采集数据和计算机模拟仿真相结合的手段，得到了不经换算的混合车流条件下不同交通总量和不同车型比例速度、密度和流量三大参数的偌模图。
The paper details the major problems, demand and forecast in the development of the passenger transportation system composed of the transportation models of railways, highways, water transport and civil aviation.
阐述了由铁路、公路、水运、航空等运输方式组成的旅客运输体系发展的主要问题及旅客运输的需求与预测,分析了各种运输方式在客运构成中的发展变化趋势,介绍了旅客运输战略目标的定向选择,各种运输方式2000、2010、2020年的相应建设规模及其实现的政策措施建议。