CAJ | 학술논문

从工艺技术和经济技术2个方面考虑，硬岩地区地铁隧道开挖选择爆破开挖最为合理，但隧道爆破产生的地震效应会对地表建筑造成危害，要选择合理的控制爆破震动方法就需要对爆破震动效应进行研究。文章采用显式动力分析有限元软件 ANSYS/LS-DYNA3D对实际隧道爆破工程中的掏槽爆破进行数值模拟，该数值模拟能进行爆破振动速度的时程分析，评价爆破方案的安全性。
종공예기술화경제기술2개방면고필，경암지구지철수도개알선택폭파개알최위합리，단수도폭파산생적지진효응회대지표건축조성위해，요선택합리적공제폭파진동방법취수요대폭파진동효응진행연구。문장채용현식동력분석유한원연건 ANSYS/LS-DYNA3D대실제수도폭파공정중적도조폭파진행수치모의，해수치모의능진행폭파진동속도적시정분석，평개폭파방안적안전성。
In consideration of both process technology and economic technology ,blasting excavation is the most suitable method for metro tunnel excavation in hard rock region .But the blasting seismic effect will do a lot of damage to the safety of ground building .So the blasting seismic effect should be studied in order to choose the suitable method to control the blasting vibration .In this paper ,the ex-plicit dynamic finite element software ANSYS/LS-DYNA3D is employed to simulate the cut blasting process in the practical construction .Based on this numerical simulation ,the time history analysis of blasting vibration velocity and evaluation of the safety of blasting scheme can be conducted .