北京飞云瀑景点崩塌地质灾害分析及防治方法研究

Analysis on Collapse Geological Disaster in Feiyun Waterfall Scenic Spot and the Study on Prevention and Control Methods

近15年来,北京飞云瀑景点附近发生过2次大规模崩塌,崩塌堆积岩块体积累计达450 m3,崩塌岩块已滚落覆盖至景区小路。经勘查,确定了1处危岩体及1处危岩带,该危岩体及危岩带对本景点的正常观赏及过往游人构成极大威胁。本文对该景点的崩塌地质灾害地质特征进行了简要介绍;对地质灾害成因、自然发展趋势等进行了初步探讨;对危岩体(带)的稳定性进行了计算、分析及评价;对可能采用的治理方法进行了比选分析。为了最大程度地保护景观资源,最终选择了以避让为主的治理措施,并对选定的治理方案及计算进行了阐述。

In recent 15 years, 2 large-scale collapses happened near Feiyun waterfall scenic spot, the volume of fallen rocks are accumulated to 450m3, rolling to the scenic path. A dangerouss rock mass and a dangerous rock belt were found by investigation. This paper gives a brief introduction to the geological features of the collapse in this scenic spot. The pre- liminary discussion is made on the causes of geological disasters and the natural development trend, the stability of danger- ous rock mass（belt） is calculated, analyzed and evaluated, and the possibly-used treatment methods are compared and an- alyzed. In order to protect landscape resources to the greatest extent, avoiding treatment measures are selected, and the cal- culation on this treatment scheme are illustrated.