极震区公路高边坡崩塌危岩体特征及防治措施检讨

THE CHARACTERISTIC OF HIGH LANDSLIPS IN EARTHQUAKE AREA ROAD AND THE METHOD OF PREVENTION

众所周知,中国西部地区等级较高的地震常常发生在岩体强度高的深切割地貌区,因而震后次生灾害的危害预测和防治显得尤为重要,且对未来防震减灾工作指导意义明显。本文以作者在G213映秀至汶川公路抢险保通工作的实践为例,对震区崩塌灾害对公路造成的危害以及防护措施的实施效果进行了大量调查,结合震区地质环境,对崩塌物源的危岩体的发育和崩塌体运动规律进行了分析,对其潜在的危害性进行了预测,以及关于防护措施的检讨,提出了实施的建议。

As most of us knows, height class earthquake had occurred in China western were often in mountain-valley region by Cutting deeply, and the compressive strength values of roc km ass in the region is large. Therefore, it is important for the hazard prediction and prevention of secondary disasters after an earthquake appears especially, and the guiding sig- nificance is obvious in the future inmitigation for rockfalls in earthquake disasters. The view in this paper, It is derived from the the author＇s practice in the earthquake region rescuing and ensuring smooth traffic of highways, and The authors have done a lot of investigation in the damage effects of rockfalls and the damage of prevention engineering measures. At a word, this article aims to initiate through the landslips of the survey, statistics, analysis in the earthquake area, summed up the characteristics, and its protective measures have being summarized, discussion and comprehensive analysis, and put forward the author＇s own rec- ommendations in the hope of further study of landslips have been helpful.