天水市成纪大道滑坡地质灾害发育特征及成因分析  

DEVELOPMENT CHARACTERISTICS AND CAUSES ANALYSIS OF LANDSLIDE GEOLOGICAL HAZARDS ON CHENGJI AVENUE IN TIANSHUI CITY

作　　者：鱼运来 YU Yunlai(The First Geological and Mineral Exploration Institute of Gansu Provincial Bureau of Geological and Mineral Exploration and Development,741000 Tianshui,Gansu,China)

机构地区：[1]甘肃省地质矿产勘查开发局第一地质矿产勘查院,甘肃天水741000

出　　处：《资源信息与工程》2025年第2期40-43,共4页Resource Information and Engineering

摘　　要：拟建工程位于天水市秦州区北山滑坡群坡脚,工程施工可能引发滑坡地质灾害,将严重威胁当地居民及工程施工安全,因此加强地质灾害的研究对项目的安全施工至关重要。项目施工区自西向东发育7处滑坡,其中:三义窑滑坡(H1-1、H1-2、H1-3)、陈家庄滑坡、枣园庄滑坡为大型,属滑坡堆积层滑坡;王家山老滑坡、周家山老滑坡为特大型,属黄土-泥岩深层滑坡。分析结果表明:区内厚大的马兰黄土及泥岩倾向顺切坡向的斜坡结构是斜坡变形破坏的内因,而暴雨、地震作用及人类扰动为主要外因。根据不同的滑坡规模、地形条件及成因,提出应因地制宜开展地质灾害防治工作,并针对上述滑坡分别提出了相应的综合治理建议。The proposed project is located at the foot of Beishan landslide cluster in Qinzhou District,Tianshui City.The construction of the project may cause landslide geological hazards,which will seriously threaten the safety of local residents and the construction of the project,so strengthening the research of geological hazards is of vital importance for the safe construction of the project.Seven landslides developed from west to east in the construction area,among which the Sanyiyao landslide(H1-1,H1-2,H1-3),Chenjiazhuang landslide and Zaoyuanzhuang landslide are large-scale landslides of the accumulation layer type,while the Wangjiashan old landslide and Zhoujiashan old landslide are extra-large-scale landslides of the loess-mudstone deep layer type.The analysis results show that the thick Malan loess and mudstone with the dip direction parallel to the slope direction is the internal cause of slope deformation and destruction,while heavy rainfall,earthquake and human disturbance are the main external causes.According to the scales,topography conditions and causes of the landslides,it is proposed that the prevention and control of geological hazard should be carried out in accordance with local conditions,and corresponding comprehensive management suggestions are put forward for these landslides respectively.

关 键 词：成纪大道 滑坡 发育特征 成因分析 天水市 

分 类 号：P642[天文地球—工程地质学]