青藏高原多年冻土地区路基及桥梁桩基施工技术

Construction Technology of Subgrade and Bridge Pile Foundation in Permafrost Regions of Tibet Plateau

多年冻土地区修筑道路一直是世界性难题,至今仍然是许多国家和地区研究的热点。曲麻莱至不冻泉公路地处青藏高原多年冻土地区,地质条件极其恶劣。详细阐述了多年冻土地区路基施工技术以及对不良地质的处理措施,同时介绍了多年冻土地区钻孔灌注桩用于桥梁桩基础的施工措施。

Subgrade construction technology in permafrost regions is a worldwide difficult problem. Nowadays, this problem is still a focus in many countries and regions. Qumalai-buliangquan Road is in permafrost regions of Tibet Plateau, whose geological condition is very poor. The construction technology of subgrade and treatment measures for poor geological condition in permafrost regions are present. And the construction technology of cast-in-place pile for bridge pile foundation in permafrost regions is introduced.