戈壁滩公路路基冲刷病害防治措施

GOBI DESERT HIGHWAY SUBGRADE EROSION DISEASE CONTROL MEASURES

戈壁滩公路是我国西北部地区特殊环境下公路交通建设的主要类型。长期以来戈壁地区因干旱少雨且土壤渗水性好,一般不考虑设路基边沟和排水措施,戈壁滩路基边坡土壤冲刷等问题也未能引起国家重视。事实上,由于戈壁滩植被稀少土壤抗冲刷能力差,且土壤已经发生板结,土壤中缺少空隙,遭遇强降水时板结土壤不能及时吸水形成地表径流,对路基造成流水冲刷,严重时造成公路水毁。为有效防止戈壁滩公路水毁,分析了戈壁滩地区的流水冲刷特性以及其对公路施工的影响,并探讨了戈壁滩地区公路路基水毁病害防治处理方法及措施,以供参考。

The Gobi Beach Highway is the main type of highway traffic construction in the special environment in northwest China.Due to the scarcity of precipitation and good water infiltration in the Gobi area,the establishment of roadbed ditches and drainage measures is generally not considered,and the problem of slope erosion of the Gobi Desert has not attracted enough attention.In fact,due to the sparse vegetation in the Gobi Desert,poor soil erosion resistance,and soil compaction,there is a lack of voids in the soil.When encountering heavy precipitation,the compacted soil cannot absorb water in time,forming surface runoff,causing running water to the roadbed.In severe cases,it causes water damage to roads.In order to effectively prevent highway water damage in saline soil of the Gobi Desert,this paper analyzes the characteristics of water erosion in the saline soil area of the Gobi Desert and its influence on highway construction,and discusses the treatment methods and measures for the prevention and treatment of water damage diseases of highway subgrade in the saline soil area of the Gobi Desert for reference.