方山县地质灾害现状及防治对策

方山县是山西省吕梁市境内地质灾害的高易发区。经过实地调查和文献分析,发现方山县境内发生频率较高的地质灾害类型有滑坡、崩塌、地面塌陷、泥石流等,并通过袭扰系数法对该县不同乡镇地质灾害的易发程度进行比较。研究发现,方山县没有高易发区,中易发区和低易发区分别在圪洞镇、马坊镇、北武当镇、积翠乡和大武镇、峪口镇,不易发区在麻地会乡。影响因素主要有山地较多、坡度较大、植被稀疏、降水量多且相对集中、矿产资源不合理开发等。针对上述因素,提出方山县的防治对策:生物措施与工程措施相结合,减少矿产资源的开采量并及时修复塌陷区,地质灾害预防和治理同时兼顾。

Present Situation of Geological Disasters in Fangshan County and Countermeasures

Fangshan County is one of the high-prone areas of geological disasters in Luliang City.Through field investigation andlitera tureanalysis,it was found that the types of geological disasters with high frequency in Fangshan County included landslides,collapses,ground collapses,mudslides,etc.The coefficient of attack coefficient was used to compare with the degree of occurrence of geological disasters in differ ent towns and villages in Shanshan County,and there was no high-prone vulnerable area,middle-prone vulnerable area and low-prone vul nerableareas was located in Qidong Town,Mafang Town,Beiwudang Town,Jicui Township,Dawu Town,and Yukou Town,and the none-prone vulnerable area was in Madihui Town.The influencing factors were mainly concentrated in mountainous areas,large slopes,sparse vegetation,large amount of precipitation and relatively concentrated,and unreasonable development of mineral resources.In view of the above reasons,Fan gshan County′s prevention and control measures included the combining biological measures with engineering measures,reducing the exploitation of mineral resources,and timely repairing subsidies and prevention and treatment of geological disasters.