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1 环境的定义
The environment is to point to influence human survival and development of all kinds of natural and artificial natural factors of the overall reform, including natural environment and social environment. The atmosphere, water, land, mineral resources, forest, grassland, wild plants, places of interest, residential area belongs to the category of the environment. 马来西亚论文代写》 

所谓环境是指影响人类生存和发展的各种天然的和经过人工改造的自然因素的总体,包括自然环境和社会环境。大气、水、土地、矿藏、森林、草原、野生植物、名胜古迹、生活居住区都属于环境的范畴。
2 　公路工程建设对环境造成的影响
Large structures structure form improper selection, and natural landscape not harmonious. With the improvement of people's living standard, the use function to ensure structures, under the premise of structures can and natural environment harmonious, especially super major bridge construction more and more now, structures and natural landscape in coordination of environmental protection has become an important content, bridge aesthetics is involved in the areas of study.

(1)大型结构物结构形式选用不当,与自然景观不协调。随着人们的生活水平的提高,在确保结构物使用功能的前提下,结构物能否与自然环境相协调,特别是特大桥建设越来越多的现在,结构物与自然景观相协调已经成为环境保护中一项重要的内容,桥梁美学等就是涉足此领域的学科。
(2) 公路选线不当。如过分考虑造价,公路取短穿越湿地等。
(3) 施工期间造成的环境破坏。如对取土场过分开采,不按要求复垦;不重视施工期间临时排水,造成水土流失;粉尘、噪音污染等。
(4) 公路本身破坏自然景观,破坏千百年来稳定的自然格局,并且影响自然风貌。
(5) 公路通车营运期间,车辆对沿线造成污染。
(6) 排水、防护措施不完善或采取形式不当造成水土流失、泥沙沉淀等。
3 　采取的措施

Feasibility research and preliminary design stage project on environmental impact assessment, for environmental protection design and environmental protection measures to provide the basis.
Preliminary design and construction drawing design stages environment protection design. Correctly handle the relationship between cost and environmental protection. (1) attention to large structures with the natural landscape design of coordination. At present large bridge construction in heilongjiang province is a big part of using heavy beam bridge form, in bridge construction technology became more and more mature today, from the environmental, economic and social benefits comprehensive consideration, also questionable. (2) the route to should decrease as far as possible to avoid through earth's ecology important wetlands, forest area, etc. (3) to protect the original geological structure stability. Highway construction damage in the mountains or hills in nature and stability, because the excavation lead to stress release cause slope slide. At present the design of little account of stress release, simply consider the soil natural rest Angle, only do some more thick geological exploration, appear after the cost of the landslide treatment than prior to avoid the cost of landslide put. (4) the possible conditions with low fill subgrade as far as possible. (5) attention drainage, protection design. Road drainage design not free, not only on the highway itself causes damage, and to cause damage to the environment, in the highway operation stage still exist under water erosion of the cultivated land, surface phenomenon. To protect the environment protection design is very important. Heilongjiang province highway construction in the very great degree the adoption of common habit of highway design, design use a lot of the pulp PianShi build by laying bricks or stones to do protection engineering, but also USES the U arch type section water skeleton slope protection way, etc. These protection way, because material is simple, low cost, is now in play their role, but a lot of the pulp build by laying bricks or stones P本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。