青藏铁路格尔木-拉萨段地质灾害分布特征及其影响因素

he Golmud-Lhasa Railway locates on the southeast of Qinghai-Tibet Platean ，in this area， complex geologic condition and special climate have resulted in sorts of geological disasters including earthquake， freeze-thaw， collpse， landslip， debris flow， sandstorm and sandsnow. Which make momentous influences to the railway engineering. The development and distribution regularity are mainly controlled by structures， physiognomy and climate. Thus integrative analysis to the geological disasters is seriously necessary. Considering distribution regularity of geological disaster and contribution factors，two typical regions of geology can be recognize in this article：the north area where sandstorm and freezing-thawing disaster are hackneyed；the south area where earthquake， collapse， landslide and debris-flow have developed dominatingly.