高速公路施工期水土流失影响因素及其防治措施

随着我国西部地区高速公路的发展,高速公路开发建设项目中的环境问题日益突出,尤其是水土流失引起了许多学者的关注。《水土保持法》要求,高速公路建设项目验收之前,必须进行水土保持工程的验收,因此水土保持永久措施基本上都能完成,但通常对于造成更多水土流失的施工期重视不够,没采取有效的临时综合防治措施,从而导致大量的水土流失,对环境造成不可恢复的影响。针对该问题,作者以湖北沪蓉西高速公路宜长段为例,对高速公路施工期水土流失的影响因素进行研究,系统阐述了高速公路施工过程中水土保持措施体系,为高速公路建设水土保持实践提供参考。

Influencing Factors and Temporary Preventive Measures of Soil and Water Loss in Construction Time of the Expressway

With the development of expressway in west of China the problem of environment protection during the construction of highway is more outstanding than ever,especially the problem of soil and water loss.Due to the law of soil and water conservation,a project of highway can not be confirmed without confirmation of soil and water conservation project so that most permanent measures of soil and water conservation can be finished.But more soil erosion being produced during the construction of the highway has not been paid more attention to and there has not been a comprehensive and effective system of temporary measures of soil and water conservation to prevent it.To this question,the temporarily integrated control measure of water and soil conservation was explored tentatively during the construction of the expressway and a reference basis was offered for water and soil conservation practice of road construction.