崩塌地质灾害防治示范应用——以济南章丘北明村东崩塌点为例

Demonstration and Application of Prevention and Control of Collapse ——Taking Collapse Spots in Eastern Beiming Village in Zhangqiu District of Ji'nan City as an Example

摘要:

济南市章丘区垛庄镇北明村东崩塌地质灾害点高差大、跨度长、危害对象多，于2021年7月发生过几次局部崩塌，造成多户房屋受损，给人民的生命财产安全造成了严重的危害。本文从崩塌发育现状着手,通过现场调查、岩土工程钻探、坑探揭露等手段对崩塌体特征进行了分析，从边坡岩土体特征内在条件和降雨、植物根劈等外在因素综合研究了地质灾害形成机理。按照Bishop法圆弧稳定分析，计算边坡稳定系数Fs=0.998<1.0，边坡属欠稳定状态。探讨了避让搬迁、工程治理、群测群防、自动监测等几种地质灾害防治对策，以期为类似地质灾害的治理提供参考。

Abstract:

Collapses in eatern Beimingcun villae in Zhangqiu district in Ji'nan city has the characteristics of large height difference, long time span and huge damage. In July 2021, there were several local collapses. It had destroyed many houses and caused serious harm to lives and property of local people. From the aspects of present condition of collapse development, according to field investigation, engineering drilling and pit exploration, characteristics of collapse have been comprehensively studied. According to the internal conditions of slope rock and soil characteristics and external factors, such as rainfall and plant root splitting, the formation mechanism of geological disasters has been studied comprehensively. According to the circular arc stability analysis by using Bishop method, the slope stability coefficient is calculated as Fs=0.998<1.0. The slope is in an unstable state. Several geological disaster prevention and control countermeasures have been discussed in order to provide some references for the treatment of similar geological disasters, they are avoidance and relocation, engineering treatment, group survey and prevention, and automatic monitoring.