【摘要】 乌鲁木齐-尉犁高速公路是连接天山南北的重要通道,翻越天山公路沿线将产生大量的工程边坡,如何快速、准确地评价高寒地区现有边坡的稳定性,以及后续建设过程中对边坡稳定性的影响,直接关系到线位选择、工程量及投资估算量。基于岩体基本质量,选取边坡岩体结构面与边坡临空面组合因素、水文条件作为主要影响因素对现有边坡岩体质量进行修正,构建了现状的边坡岩体质量评价体系(TBQ)。在此基础上,考虑了大温差及水文条件造成的冻融风化作用、地震影响以及开挖方式等因素,构建了边坡岩体稳定性的预测评价体系(TFBQ),对于完善高寒地区边坡质量评价体系具有重要的研究意义。通过运用该体系对项目区边坡进行了稳定性评价及预测适用性分析,取得了较好效果。更多还原

【Abstract】 The Urumqi-Yuli highway is an important channel connecting the north and south of the Tianshan Mountains. When the highway crosses the Tianshan Mountainsa, a lot of engineering slopes along the highway will be cut. How to quickly and accurately evaluate the stability of these existing slopes and access the influence on slopes by subsequent changes in the process of construction in the alpine region, would directly relate to the route selection, total engineering volume and the amount of investment estimation.Based on rock mass basic quality, a status quo slope quality evaluation system(TBQ) is established. In TBQ, the combining of rock mass discontinuity and slope free surface, the hydrologic condition are selected as the main factors to revise the existing rock mass quality evaluation system. On this basis, other several factors including freezing-thawing and weathering effect caused by the large temperature difference and hydrologic condition, the earthquake and excavation etc., are introduced, the prediction and evaluation system of rock slope stability(TFBQ) is established. Case application to a practical engineering shows that this system is applicable to evaluate and predict the slope stability in project area, and better results are obtained.更多还原