辽宁抚顺市区凤翔路地裂缝诱因分析

Analysis of geofracture incentive cause on Fengxiang Road in Fushun city

抚顺市是一个在煤炭工业基础上发展起来的大城市。煤田开采破坏了该地区的地质环境,在市区内诱发了一系列地质灾害,地裂缝是灾害之一。文章所讨论的地裂缝位于市区内凤翔路南侧,长约1 5km,已造成10余幢建筑物破坏,其中2栋居民楼被迫部分拆除。地裂缝尚在发展,其破坏作用不断加剧。文章通过变形监测数据及地质勘察资料分析,对地裂缝的诱因进行了探讨。认为浑河断裂带是发育地裂缝的地质构造基础,采煤沉陷为地裂缝的发育提供了运移空间及应力条件。该地区频繁发生的矿震加剧了地裂缝的发展及破坏作用。所得结论可供地裂缝治理参考。

Fushun City is a large city based on the coal mining industry. The coalfield development has destroyed the geological environment of this area, which has induced a series of geological hazards; the geofracture is one of the geological hazards. The geofracture discussed in this paper is located on the southern side of Fengxiang Street, with the length of 1.5?km, which has damaged tens of buildings, two residential buildings of which was forced to be demolished. The geofracture is still growing, and the damage effect is becoming more severe. Based on the analysis of the deformation observation and the geological prospecting data, this paper has discussed the causes of the geofractures in this area and come to a conclusion that the Hunhe fault is the geological tectonic basis for the geofracture, the coal mining settlement offers the movement space and the stress conditions for the geofracture and the frequent mining tremors in this area intensify the development and damage effect of the geofracture. The conclusions in this paper can be used as the reference for the geofracture control.