CAJ | 학술논문

针对西部交通建设常见的浅埋偏压山岭隧道，利用 ANSYS 软件建立了偏压隧道抗震分析的数值模型，分析比较了不同地震波输入方向、隧道衬砌厚度和偏压边坡加固等因素对于山岭隧道抗震分析的影响，通过分析可知：①一般情况下，竖向加速度可取为水平加速度的1/2时，则可以利用水平地震波来代替实际复杂的地震波是可行的；②衬砌的厚度增大对其抗震性能的提高并不是线性的，应该存在一个合理的衬砌厚度；③偏压隧道的人工反压加固措施对于隧道的受力影响明显，尤其体现在加固后分离式隧道的应力分布总体上更加合理，边坡水平位移变化不大，但位移场云图更加平缓，有效地降低了地震滑坡的可能性。研究结果对于偏压山岭隧道抗震设计具有重要的参考价值和指导意义。
침대서부교통건설상견적천매편압산령수도，이용 ANSYS 연건건립료편압수도항진분석적수치모형，분석비교료불동지진파수입방향、수도츤체후도화편압변파가고등인소대우산령수도항진분석적영향，통과분석가지：①일반정황하，수향가속도가취위수평가속도적1/2시，칙가이이용수평지진파래대체실제복잡적지진파시가행적；②츤체적후도증대대기항진성능적제고병불시선성적，응해존재일개합리적츤체후도；③편압수도적인공반압가고조시대우수도적수력영향명현，우기체현재가고후분리식수도적응력분포총체상경가합리，변파수평위이변화불대，단위이장운도경가평완，유효지강저료지진활파적가능성。연구결과대우편압산령수도항진설계구유중요적삼고개치화지도의의。
In view of the commonness in western traffic construction , seismic analysis of shallow and bias tunnel is established by use of ANSYS software in the numerical model , which analyzes and compares the different seismic wave input direction , presents factors such as tunnel lining thickness and bias slope rein-forcement for seismic analysis of mountain tunnel .Firstly, under normal circumstance , when vertical ac-celeration can preferably be taken to half of the horizontal acceleration , it is feasible that the horizontal seismic waves replace the actual complex seismic wave .Secondly , the increase of the thickness of the lining of the seismic performance is not linear;there should be a reasonable lining thickness .Finally, the stress of tunnel has been obviously impacted by measures of artificial reinforcement slope and particularly in separated tunnel after reinforcement stress distribution on the whole , it is more reasonable .Though horizontal displacement of the slope is little changed , displacement field cloud images is more flat and could effectively reduce the possibility of an earthquake landslide .The results have important reference value and guiding significance for seismic design of bias voltage mountain tunnel .