【摘 要】
：
In order to study the distribution laws and types of plastic zone of surrounding rock in large-span roadway, we analyzed the distribution laws with different sp
【机 构】
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StateKeyLaboratoryofCoalResourcesandMineSafety,MiningandConstructionDepartment,SchoolofMechanicsandC
【基金项目】
：
Financial supports are from the National Natural Science Foun- dation of China （No. 50874104）, and the Scientific Research Indus- trialization Project of Jiangsu Universities （No. JH07-023）.
论文部分内容阅读
In order to study the distribution laws and types of plastic zone of surrounding rock in large-span roadway, we analyzed the distribution laws with different spans and lateral pressures using FLAC 3D numerical calculation software. Based on the roadway su
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