共和至结古高速公路冻土区桥梁基础设计

以青海省共和至结古高速公路工程为依托，针对西部高海拔冻土区的地质情况，按扩大基础设计原则和冻土区桩基设计原则，对其公路桥的基础进行了设计，查穷玛桥采用扩大基础，K559处公路桥采用钻孔灌注桩，供高海拔冻土路段桥梁的基础设计参考。

Design of Bridge Foundation in Permafrost Region for Highway from Gonghe to Jiegu

Depending on the highway engineering from Gonghe to Jiegu in Qinghai Province，and in relation to the geological conditions of permafrost region over high altitudes in the west，the foundation of highway bridge there was designed according to the principal of foundation expanding design and pile foundation design in permafrost region.As a result，Chaqiongma Bridge adopts expanded foundation and the highway bridge in K559 Section cast-in-place bored piles，which may be referred by similar design.