论文部分内容阅读
为分析喀喇昆仑公路改扩建工程施工对沿线地表水环境的影响,对喀喇昆仑公路典型施工路段路侧地表径流和冰川融水支流的水环境状况进行了现场监测和采样分析,并对K754+400～K788+000路段内公路弃渣对河道压缩情况进行了现场勘测。结果表明:喀喇昆仑公路改扩建施工对沿线地表径流中悬移质浓度、离子浓度影响很小,沿线地表径流也未受到石油类和生活污水的污染影响,局部路段路侧径流中悬移质浓度的迅速增加与汇入的冰川融水支流水质特征有显著关系。改扩建工程部分路段施工弃渣对路侧河漫滩地(老路路界至水体距离)产生了一定的挤压和占用,占用比例在12%～100%不等,但尚未对河道过水断面形成挤占。最后针对公路与河道的典型位置关系特征提出了相应的水环境保护对策。
In order to analyze the impact of the construction of Karakoram Highway on the surface water environment along the route, on-the-spot monitoring and sampling analysis were carried out on the surface runoff of the Karakorum Highway and on the water environment of the tributaries of the glacier melt tributaries. K754 + 400 ~ K788 + 000 section of highway roadside debris compression on-site survey. The results show that the construction of Karakoram Highway has little effect on suspended sediment concentration and ion concentration in surface runoff along the route, and the surface runoff along the route is not affected by the pollution of oil and domestic sewage. The runoff The rapid increase in concentration is significantly related to the quality of the incoming glacier melt tributaries. The construction spoil in some sections of the expansion and expansion project exerted a certain squeezing and occupying on roadside floodplain (the distance from the old road to the water body), occupying a proportion of 12% -100% . Finally, the corresponding water environment protection measures are put forward according to the typical position relation between highway and river.