高原铁路大型弃渣场工程特征与稳定性研究

以高原铁路某区间弃渣场为依托，结合渣场弃方量、海拔高度、气候条件、渣体类型等多方面特征，从渣场选址、植被防护及抗震设计等方面开展弃渣场稳定研究与探讨。结果表明:大型渣场选址应结合铁路特点综合考虑；加强行洪论证、暴雨工况论证和地震工况论证；植被防护应因地制宜；挡渣结构类型应结合地震作用选择。通过对具体实例进行渣场稳定性分析，得到渣场在地震工况和暴雨工况下稳定性降低，二者共同作用时，稳定性急剧降低，易发生渣坡失稳。

Research on Engineering Characteristics and Stability of Large-scale Abandon Dreg Site of the Plateau Railway

Based on the abandoned slag field of some sections of the plateau railway, combining the slag dump waste amount, altitude, climate conditions, slag body type and other characteristics, the slag dump site stability research and discussion are carried out from the slag dump site selection, slag slope protection and the earthquake resistant design, etc. The result shows that the site selection of large slag fields should be considered comprehensively in combination with the characteristics of plateau railway, the demonstration of flood discharge, rainstorm condition and earthquake condition should be strengthened, and the vegetation protection should be adapted to local conditions, the type of slag retaining structure should be selected in combination with seismic action. Through the analysis of the stability of the slag site, it is found that the stability of the slag field decreases under the condition of earthquake and rainstorm, the stability of the slag field decreases sharply when the two work together, and the slag slope is prone to instability.