山区公路边坡崩塌的成因及处理

Landslide Hazards along Highways in Mountainous Area and Their Remediation

山区公路已成为城市公路的重要组成部分,但由于人们对山区公路边坡塌方的成因及危害认识不足,预警措施不及时,每年山区公路的边坡塌方都给公路交通造成安全隐患,对交通运输网络的功能发挥造成影响,给人民生活和生产带来巨大损失。以北京密云琉辛路K30+700处崩塌成因及处理工程为例,从地形地貌、岩性、构造等方面探讨了边坡崩塌产生的原因,介绍了崩塌的处理措施及施工时注意事项,得到有关结论,为今后其他山区公路的边坡稳定性评价和崩塌防护提供借鉴。

The highways in the mountain areas are the integral part of the transportation network system that connecting the urban cities.Due to the lack of understanding the factors that might affecting the landslides and their potential hazards,the preventive measures could not meet the requirement.As a results,the annual landslide related hazards on the mountain highways post a large potential threat to the safe operation of the highway network.This paper presents a case study of a mountainous highway landslide and its remediation in Liu-Xing Highway at Station K30＋700in Miyun,Beijing.The factors that might affect the landslide are analyzed from aspects of the topographical,bedrock types and tectonic conditions.The remediation of the landslide techniques and the construction procedures are also summarized in the paper.