河南省禹州市地质灾害特征及防治建议

Geological Hazard and its Preventing Suggestion in Yuzhou City,Henan Province

禹州市地处河南中部,豫西山区边部,属嵩箕余脉。地质环境复杂,构造发育,地层出露齐全。与地质灾害密切相关的含煤岩系地层广泛分布,属地质灾害强易发区,给当地造成了人员伤亡事故及巨大的经济损失,预防、治理工作刻不容缓。区内各类地质灾害110起(其中地面塌陷93起),平均发育密度7.7起/100km2,以地面崩陷为主。作者在总结该区地质灾害发育类型、分布特征、危害程度的基础上,分析了其形成条件及诱发因素,并进行了地质灾害发展趋势预测,提出了相应的防治建议。

Yuzhou is situated in the central part of Henan Province, and near the margin of western Henan mountain area. Natural geologic conditions here are very complicated. The geologic hazards take place easily. The strata from lower Proterozoic to Cenozoic all exist here, especially coal system stratum with relation to the geologic hazards distribute widely. In addition to the tectonic activities, the main geologic hazards, surface collapse has already formed, resulting in great economic damage and person wounded and death .So it is urgent to prevent and control them. All kinds of geologic hazard sites totally are 110, including surface collapse 93(7.7 per 100 km^2). Based on the sdudy on the geologic hazard developing types, distributing features, harmful degrees, forming conditions and the effecting factors, the authors put forward the suggestions of the preventing and controlling mathods in this paper.