摘要
朝阳市位于辽宁西部低山丘陵区,近年来,崩塌落石地质灾害频繁发生,瓦房子镇团山子为典型的软硬岩接触导致的陡崖崩塌落石地质灾害。朝阳地区常用的崩塌地质灾害防护结构多为圬工结构,圬工结构存在材料用量大搬运困难、施工强度大、施工进度缓慢、原始生态环境破坏大、不美观等缺点。综合考虑瓦房子镇团山子崩塌的地质环境条件,分析崩塌地质灾害特征,通过多种治理方案比选,确定采用SNS被动防护系统治理。该系统克服了圬工结构的缺点,能够有效地拦截落石,在受力上具有以柔克刚的优点。通过对瓦房子崩塌落石运动轨迹计算,给出了一整套计算边坡落石运动轨迹的公式,为类似崩塌地质灾害治理方案选择及落石运动轨迹计算提供了参考。
Chaoyang city is located in the hilly areas of western Liaoning. In recent years, collapse rockfall geological hazard frequently occurred. Collapse geological hazard in Tuanshanzi village of Wafangzi town is a typical cliff collapse rockfall geological hazard caused by contact of soft and hard rocks. In Chaoyang area, masonry structures are used as collapse geological hazard protection structures. Masonry structures have many shortcomings such as material consumption great, material handling diffcult, construction intensity great, construction progress slow, original ecological environment destruction serious, not beautiful and so on. Comprehensively considering geological conditions of collapse geological hazard in Tuanshanzi village of Wafangzi town, analyzing its features, through a variety of governance scheme comparison and selection, it determines to use SNS passive protection system. Passive protection system not only overcomes the above-mentioned shortcomings of the masonry structure, but also effectively blocks rockfall, which has the advantage of overcoming frmness by gentleness on mechanics. Through the rockfall trajectory calculation, it gives a set of formulas to calculate the trajectory of rockfall. This paper provides a reference for similar collapse geological hazard governance scheme selection and rockfall trajectory calculation.
作者
刘占梅
朱佳川
张志颖
王泽蛟
魏强
LIU Zhanmei ZHU Jiachuan ZHANG Zhiying WANG Zejiao WEI Qiang(Team 109 of the Bureau of Non-ferrous Geology of Liaoning Province, Chaoyang, Liaoning 122000)
出处
《城市地质》
2017年第2期40-45,共6页
Urban Geology
基金
基金项目:朝阳县国土资源局朝阳县瓦房子镇团山子崩塌地质灾害治理工程(G04212016150223)
关键词
瓦房子镇团山子
崩塌地质灾害
落石运动轨迹计算
SNS被动防护系统
Tuanshanzi village of Wafangzi town
Collapse geological hazard
Rockfall trajectory calculation
SNS passive protection system
