山区旅游地质灾害隐患分析及其防治方法研究——以蛇蟠岛野人洞景区为例.pdf

摘要 我国山区旅游资源丰富。随着山区旅游资源的快速发展，山区旅游地质灾害 频发，但能够解决山区地质灾害的防治方法却不多。本文选取浙江省蛇蟠岛国家 矿山公园野人洞景区出口段和迎阳门段作为研究区，建立了相应的地质模型，运 用现场调查和数值模拟的技术对危岩体进行了稳定性评价，利用 RocFall 软件计 算了崩塌落石的影响范围，并为景区的地质灾害防治工作提供了相应的防治方 法。主要的研究工作和成果为： （1）在研究区崩塌落石灾害隐患现场进行详细的工程地质调查，查明洞室 边坡危岩体的地质特征，对其进行初步的稳定性评价。 （2 ）针对出口段边坡危岩体，评估了其在旅游条件下的地质灾害风险，得 到了该处边坡为高风险区的结论。利用 RocFall 软件对其进行模拟，得到崩塌落 石的运动特征以及落石的影响范围，基于山地旅游规划工程地质方法原理，提出 了“削坡、砂浆层、混凝土板、锚固、绿化”的工程加固防治方法。 （3 ）针对迎阳门段洞室危岩体，利用三维激光扫描技术获取点云数据，使 用 GeoMagic、HyperMesh 及 FLAC3D 软件对研究区危岩体稳定性进行模拟计算， 获得危岩体应力场、位移场、塑性区等信息，得到该处洞室稳定性较差，可能发 生崩塌落石的结论。基于山地旅游规划工程地质方法原理，提出了“工程加固” 和“绕避”综合并行的防治方法。 关键词：危岩体稳定性评价，RocFall ，FLAC3D ，防治方法 Abstract Mountainous tourism resources are abundant in China. With the rapid development of mountain tourism resources, geological disasters occur frequently in mountain tourism areas ，including landslides, collapses and debris flows, may occur. Among them, the collapse disaster has the characteristics of concealment, sudden occurrence, calamity and so on. However, there are not many methods to prevent and solve geological disasters in mountainous tourist areas. In this paper, the exit section and yingyangmen section of Yeren Cave Scenic Area of Snake Island National Mine Park in Zhejiang Province are selected as the research area, and the corresponding geological model is established. The stability of dangerous rock is evaluated by using the technology of field investigation and numerical simulation. The influence range of rock fall is calculated by using RocFall software, and the corresponding prevention measures are provided for the prevention and control of scenic area. The main research work and results are as follows: