山区公路建设中复杂工程地质问题及对策研究

近几年,北京市开展了大规模的山区公路建设项目,山区地形、地质条件复杂多变,地质灾害较为发育,且在山区高速公路建设过程中,往往需要进行深埋隧道、大跨径桥梁、高填深挖路基等工程建设,因此,山区公路建设不可避免地对地质环境造成破坏,进而引发各种复杂工程地质问题。本文采用工程地质分析与实际工程经验相结合的方法,对兴延高速公路工程建设过程中遇到的工程问题及解决措施进行了分析总结,对今后北京山区公路建设具有重要意义。

Study on complex engineering geological problems and countermeasures in highway construction in mountainous area

In recent years,many large-scale mountain highway construction projects were carried out in Beijing. Due to the complex topography and geological conditions,geological hazards are often developed.Deep buried tunnel,long-span bridges,thick landfill or deep excavation are needed in the highway construction process. The geological environment is inevitably damaged during construction;lots of complicated engineering geological problems are also caused. The engineering problems encountered in the construction of Xingyan expressway and their solutions are analyzed and summarized combined the engineering geological analysis and experience in this paper. A deeper understanding and some experiences are proposed which could be referred by the highway construction in the mountain area in Beijing.