摘要
针对深部开采环境下爆破震动对巷道稳定性影响较大的问题,基于FLAC3D程序建立了高峰矿深部巷道模型,并对巷道施加爆破地震波进行动力分析计算。通过对巷道静力计算与动力计算后的应力场、位移及塑性区分析对比,并对巷道围岩振动速度进行监测,结果表明,爆破震动对巷道顶板危害最大,底板次之,影响最小的为巷道两帮。
The stability of roadway influenced by blasting vibration in deep mining was addressed by the dynamic analysis on the blasting power wave applied on roadway based on the deep mine roadway model developed on FLAC3D program. Comparative a- nalysis of stress field, displacement and plastic zone was carried out by the static arid dynamic calculation of roadway and vibration velocity of surrounding rocks of the roadway was measured. The result shows that the blasting vibration is the most harmful to roadway roof, followed by roadway and the least harmful to both sides of roadway .
出处
《化工矿物与加工》
CAS
北大核心
2014年第7期27-31,共5页
Industrial Minerals & Processing
