青藏铁路格拉段多年冻土上限的确定方法

the Method for Confirming the Natural Permafrost Table in Gela Section of Qingzang Railway

影响多年冻土地区建筑物稳定性的主要部位是冻土上限附近及其上部的季节融化层。准确确定多年冻土上限的位置及掌握其变化规律是冻土地区工程勘察的基本工作和重要内容。

It is seasonal thawing layer nearby natural permafrost table offecting the building stability in permafrost area.It is important work to confirm the position of natural permafrost table and grasp its change law.Introducing the exploring method of natural permafrost table in Qingzang railway.