富水软岩巷道变形机理分析及控制技术研究

doi:10.11799/ce201401017

Abstract

Abstract:

The main factors what lead to instability of soft rock tunnel is Groundwater,it weaked the surrouding of roadway quickly and impacted on deformation mechanism of roadway seriously. By analysis of the geological condition and the surrounding environment.the deformation of soft rock roadway cause the change of surrounding rock stress and plastic zone instability,under the coupling of stress field and seepage field.Groundwater induce wall rock mechanics features become bad gradually because of infiltration and force extrusion.The practice shows that strengthen support and draining water can weaken roadway deformation from the roots.

Key words: water-rich conditions, soft rock, roadway deformation, draining water

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URL: http://www.coale.com.cn/EN/10.11799/ce201401017

http://www.coale.com.cn/EN/Y2014/V46/I1/53

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Soft Rock Roadway Deformation Analysis and Control In Water-Rich Conditions

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