摘要
针对隧道工程中破碎围岩钻爆施工时爆破荷载影响作用的分析与实践调查，引入反映裂隙围岩钻爆影响的损伤演化模型，模拟动荷载作用的影响。针对不同频率情况，可以预先有效地确定围岩破坏状态，决策开挖初期支护方案的有效形式；也为裂隙围岩全断面掘进机掘进、初撑力确定及支护方式选择，提供了一种有效的预测方法。
On the basis of analyzing the effect of the drilling-blasting operation on surrounding rocks of tunnel, the damage evolution model is introduced. The effect of dynamic load resulting from blasting operation is simulated, and the breaking state of surrounding rocks may be predicted effectively in different cases. The effective support scheme in initial excavating period is determined, too. An effective method is proposed to determine setting load and selecting support scheme of TBM operation in jointed surrounding rocks.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2001年第4期440-442,共3页
Chinese Journal of Rock Mechanics and Engineering
基金
霍英东教育基金会资助(序号71076)
