文档介绍：虎峪沟地质灾害危险性分析
摘要
虎峪沟位于山西省太原市西山地区,该地区地质灾害发育极为强烈,直接危害下游居民的生命财产安全。为进一步查清该区地质灾害危害程度,为了给虎峪沟防灾减灾、彻底综合治理提供理论依据,进行本次地质灾害危险性分析。
在其流域地质环境调查及特征分析,对西山地区构造活动、河流下切形成的复杂地形地貌、自然风化及人类工程活动堆积的松散堆积物物源、不均衡降雨等各种作用相伴生的地质过程进行了研究,并进一步采用危险度评价分析方法对虎峪沟地质灾害进行了分析。
现状条件下虎峪沟崩塌、滑坡发育,泥石流物源,偶见地裂缝、地面塌陷,地质灾害危险性中等;预测不稳定斜坡失稳引发崩滑可能性比较大,危险性中等,发生泥石流可能性大,危险性大,受采煤影响产生地裂缝、地面塌陷可能性大,危险性大。综合评价虎峪沟为地质灾害危险性多发区。
关键词:虎峪沟;地质灾害;危险性分析
Abstract
Tiger valley ditch in Shanxi province is located in the Taiyuan City area, the area of geological disasters are extremely strong, directly endanger the safety of life and property downstream residents. In order to further investigate the geological disaster hazard degree, in order to give tiger Valley Channel Disaster Prevention and mitigation, thoroughly integrated management to provide academic basis, for the geological hazard risk analysis.
In its basin geological environment investigation and analysis of the characteristics of the western area, tectonic activity, river incision plex topography, natural weathering and human engineering activities stacked loose deposits provenance, uneven rainfall such as the role of itant geological process were studied, and further the risk evaluation method for analysis of tiger valley ditch geological disasters are analyzed.
The current situation of tiger valley ditch collapse, landslide, debris flow provenance, occasionally insightful cracks, ground subsidence, geological hazard medium; prediction of unstable slope instability triggered landslides hazard possibility of relatively large, medium, the possibility of debris flow, risk big, affected by mining influence the formation of ground fissures, ground collapse possibility is big, dangerous. Comprehensive evaluation of tiger valley ditch for geological hazard prone areas.
Key words: Tiger valley ditch; geological disaster; risk analysis
目录
摘要 I
Abstract II
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2虎峪沟地质环境条件 5
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