潍坊市地质灾害现状及易发性评价

对潍坊市地质灾害分布范围、现状及易发程度进行了综合研究。潍坊市存在的地质灾害主要有崩塌、滑坡、泥石流和地面塌陷4种类型,规模以中小型为主;崩塌、滑坡和泥石流主要分布在潍坊市西南部的青州、临朐、安丘等地区;地面塌陷主要位于青州、临朐、昌乐、高密、昌邑等矿山采空区。潍坊市地质灾害易发程度主要分为高、中、低和不易发区等4种。潍坊市大部分区域为不易发区,占总面积的78.45%;低易发区主要分布在坊子等膨润土开采区;中易发区主要分布在青州文登、朱崖、马岭杭铁矿采空区、昌乐县五图镇煤田开采区、高密市柴沟镇、安丘景芝镇重晶石开采区;高易发区主要分布在青州西南部、临朐南部、安丘西南部等中、低山区。

Present Condition and Susceptibility Evaluation of Geological Disasters in Weifang City

In this paper, distribution scope, current situation and the degree of vulnerability of geological disasters in Weifang city have been studied comprehensively. Geological disasters in Weifang city mainly include 4 types, such as landslides, debris flow and ground subsidence with small and medium sized scale. Collapse, landslide and debris flow are mainly distributed in Qingzhou, Linqu, Anqiu in the southwest of Weifang city. Mining subsidence mainly located in Qingzhou, Linqu, Changle, Changyi, Gaomi mine goaf. The vulnerability degree of geological hazards in Weifang is mainly divided into easy, medium easy, weakly easy and no easy happening areas. Most regions in Weifang city are not easy happening areas, and account for 78.45% of the total area. Weakly happening areas are mainly distributed in bentonite mining area in Fangzi area. Medium happening areas are mainly distributed in Wendeng, Zhuya, Malinghang iron ore mining-out areas in Qingzhou city, coal mining area in Wutu town in Changle county, barite mining areas in Chaigou town of Gaomi city and Jingzhi town in Anqiu city. Easy happening areas are mainly distributed in low mountain areas in the southwest of Qingzhou city, southern Linqu city and southwestern Anqiu city.