摘要
介绍了北京市房山区大安山乡军红路发生岩体崩塌地质灾害形成危岩体的基本情况,分析了危岩体崩塌成因和稳定状况以及排险的工程难度和施工风险;对危岩体稳定状况进行了分析,并选择了适宜的排险方案,即在确保人员和环境安全的前提下,采用弱抛掷深孔光面爆破技术,使危岩体一次性顺利塌落,危岩体后缘形成完整、连续的光爆面和稳定边坡,最终安全地排除了危岩隐患,达到了地质灾害治理的目的;阐述了光面爆破技术在军红路地质灾害治理中具体的技术措施、难点重点、技术参数和施工工艺,并进行了爆破有害效应分析和安全验证。该工程经验可供类似工程参考。
This paper introduces the basic situation of rock mass collapse on Junhong Road,Da′Anshan Town,Fangshan District in Beijing,and analyzes the cause and stability of rock mass collapse,the engineering difficulty and construction risk during risk elimination.The dangerous rock mass stability is analyzed,proper risk elimination plan is chosen,on the premise of ensuring the safety of personnel and the environment,dangerous rock mass fall off smoothly at one time by applying weak throwing deep hole smooth blasting technology.And a complete and continuous smooth blasting surface and stable slope are formed at the back edge of dangerous rock mass.Finally,hidden trouble of dangerous rock is eliminated and the geological hazard control is achieved.The specific technical measures,difficulties and key points,technical parameter and construction technology of smooth blasting technology has been expounded,blasting harmful effect analyzed and safety verified.The project can provide reference for similar projects.
作者
任正南
Ren Zhengnan(Beijing Municipal Road and Bridge Management and Maintenance Group,Beijing 100089,China)
出处
《市政技术》
2022年第3期48-51,共4页
Journal of Municipal Technology
关键词
地质灾害
危岩
治理
光面爆破
稳定边坡
geological disaster
dangerous rock
treatment
smooth blasting
stable slope
