兰新铁路哈密地区的沙害

本文主要介绍了兰新铁路哈密地区沙害的分布特征、形成原因和防治措施。通过对1986年5月19-20日出现的12级东南大风后的沙害考察,指出平沙地、砂砾戈壁和砾质戈壁地段的铁路,由于线路两侧的地表性质,风沙流运动特征和地貌特征的不同,沙害的分布特征、危害程度、形成条件和防治措施也不同。总结了这次沙害的经验教训,提出了沙害防治以"因害设防、因地制宜,经济有效、长期可靠"为原则的-些具体措施。

Blown Sand Disasters along the Railway in Hami Area,Xinjiang

The distribtive charcteristics, causes and controlling measures to blown sands disasters along the railway in Hami Area,Xinjiang are ane analyzed. It is concluded, by the ground observasion of force 12 winds on the Beaufort scale taken place on 19th-20 May 1986,that along the railway tracks on sand terraces, arenaceous gobi and hammocks, the distribution, risk, forming process and preveting measures of sand disasters are completely interreated to the surface textures, the motion of blowns ands and topographic features. By the summerization of the observation of the disasters on 19th_20th May 1986, some concrete meaures have been prposed under the priciples of" establishing preventives to the disaters and developing measures suit to the local conditions in the viewpoints of ecomic results and long-term reiability'.