摘要
滑坡灾害是常见地质灾害之一,人类工程数量和规模的发展,致使堆积体滑坡灾害在滑坡灾害中的比重不断增大,如何保障堆积体稳定性值得研究。通过试验测试的方法,从堆积体材料的组成出发,对比分析不同降雨强度、不同含土率、不同骨料比例对堆积体稳定性的综合影响。试验结果表明:堆积体的含土率对滑坡规模影响较大;降雨强度与堆积体破坏程度成正比关系;堆积体的临界坡度越大其稳定性越好。在工程实际中,为确保人工堆积体边坡具有较好的稳定性,应合理规划堆积体的材料组成,降雨期间应着重监测含土率较大、临界坡度较小的堆积型边坡。
Landslide is one of the common geological disasters.The development of the number and scale of human engineering increase the proportion of accumulation body landslide in landslide disasters.To ensure the stability of an accumulation body,the comprehensive effects of different rainfall intensity,different soil content,and different aggregate ratios on the stability of the accumulation bodies were studied and compared in experiment.The results show that,the soil ratio of the accumulation body had a great influence on the scale of the landslide;the rainfall intensity was proportional to the damage degree of the accumulation body;the greater the critical slope of the accumulation body,the greater the stability.In real cases,to ensure the stability of the artificial accumulation body s slope,the composition of materials of the accumulation body should be planned reasonably.During the period of rainfall,the accumulated slope with large soil content and small critical slope should be monitored.
作者
林泽雨
刘爱华
张巍
何卓名
周学民
王甦宇
LIN Ze-yu;LIU Ai-hua;ZHANG Wei;HE Zhuo-ming;ZHOU Xue-min;WANG Su-yu(Water Conservancy and Civil Engineering College,South China Agricultural University,Guangzhou 510642,China)
出处
《科学技术与工程》
北大核心
2020年第29期11875-11882,共8页
Science Technology and Engineering
基金
广东省水利厅科技创新重点项目(2017-30)
广东省自然科学基金(2018A030310346)。
关键词
堆积体
边坡稳定性
降雨
滑坡灾害
试验研究
accumulation body
slope stability
rainfall
landslide disaster
experimental study
