青藏铁路巴嘎榨岛状多年冻土的成因与评价

Origin and Evaulation of Bagazha Patch Permafroast along Qinghai-Tibet Highway

通过对巴嘎榨岛状多年冻土的成因分析 ,并结合钻探、物探、测温等综合勘探的技术 ,查明了该段多年冻土的工程地质条件 。

Geologic setting along Qinghai-Tibet Railway is complex. The permafrost has a wide distribution. Investigation and evaluation on permafroast is an important factor in the design and construction of railway. The causes of Bagazha patch permafrost are investigated and analyzed. An integrated technology of drilling,geophysical prospecting and temperature measurement is adopted. The setting of engineering geology is thus understood. Therefore, It provides a scientific foundation for designing and construction of railways.