内外动力作用下天山北麓某矿区滑塌发生机制及防治对策

Mechanism and Control Measures of Landslide for a Mining Area in the Northern Foot of Tianshan Mountain under the Action of Internal and External Forces

随着半山区地下煤碳资源不断开采,采空区塌陷问题值得重视。新疆天山北麓受地震、降雨、采空塌陷等方面影响,斜坡区滑灾害变得更加复杂且影响范围加大。以天山北麓某煤矿为例,通过地面调查、无人机摄影、钻孔岩心数据分析等手段,在0.3 km^(2)范围内圈划出4个不同规模和形态的滑坡。通过多年遥感影像对比及变形数据分析,揭示滑坡在地震、降雨、地下采空区等内外动力作用下发生的机制。基于煤矿安全和生态保护的原则,提出生态工程-岩土工程协同减灾对策。

With the continuous exploitation of underground coal resources in the mid mountain area,the problem of Goaf Collapse is worthy of attention.Affected by the earthquake,rainfall,Goaf Collapse and other aspects,the landslide disaster in the Northern Piedmont of Tianshan Mountain in Xinjiang has become more complex and the scope of influ-ence has increased.Taking a coal mine in the northern foot of Tianshan Mountain as an example,four landslides with dif-ferent sizes and shapes are delineated in the inner circle of 0.3 km^(2) by means of ground investigation,UAV photography and borehole core data analysis.Through the comparison of remote sensing images and the analysis of deformation data for many years,the mechanism of landslide under the action of earthquake,rainfall,underground goaf and other internal and external forces is revealed.Based on the principles of coal mine safety and ecological protection,the Countermea-sures of Ecological Engineering Geotechnical Engineering Collaborative disaster reduction are proposed.