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为了使阿拉尔—和田沙漠公路(阿和公路)机械防沙体系的更新养护更具有针对性和经济性,根据不同地貌状况对阿和公路沿线机械防沙体系的破坏程度进行了实地调查,提出了机械防沙体系更新养护判定方法,定量统计和评价了沿线固沙草方格和阻沙栅栏的破坏程度和是否需要更新状况。(1)防沙体系中不同防沙措施风沙危害程度差异较大。其中,草方格风沙危害较轻,全部更新和部分更新的路段共79km,仅占全线的19.56%,主要分布在K509~K570段;阻沙栅栏破坏严重,全部更新和部分更新的路段共302km,占全线的74.75%,主要分布在K232~K562段。(2)公路防沙体系东西两侧破坏程度存在差异。东西两侧的固沙草方格更新程度平均值分别为0.23、0.31,全部更新和部分更新路段长度分别为79km、124km;东西两侧的阻沙栅栏更新程度平均值分别为0.45、0.50,全部更新和部分更新路段长度分别为288km、195km。
In order to make the Aral-Wada desert highway (A & H) mechanical sand control system renewal and conservation more pertinence and economy, according to the different landform conditions, the degree of damage to the mechanical sand control system along the A & H highway was investigated on the spot. The method of updating and maintaining the mechanical sand control system was used to quantitatively evaluate and evaluate the degree of damage and the need of renewal of sand-fixing grids and sand-blocking barriers along the railway. (1) There are significant differences in the degree of sand damage between different sand control measures in the sand control system. Among them, grass checkered sandstorm harm less serious, all the updates and part of the renewal of the road a total of 79km, accounting for only 19.56% of the full range, mainly in the K509 ~ K570; blocking barriers severely damaged, totally updated and partially updated sections 302km , Accounting for 74.75% of the total line, mainly distributed in K232 ~ K562 segment. (2) The degree of damage on both sides of the highway sand control system is different. The average values of square grids of sand-fixing grass on both east and west sides were 0.23 and 0.31, respectively, and the length of all the updated and partially updated segments were 79km and 124km respectively. The average updating levels of fencing fences on both east and west sides were 0.45 and 0.50 respectively, And some of the updated sections length 288km, 195km.