摘要
应用FLAC3D与3DEC数值分析软件对某水电站地下洞室交叉口的坍塌破坏过程进行数值模拟,分析其产生坍塌破坏的原因及其影响因素.结果表明,该类型的破坏由高地应力和结构面共同作用引起,并且具有时效性,针对该类型的破坏应着重强调施工过程中支护措施的及时性和系统性,否则易在破坏区域由于破坏具有的时效性等因素而引起二次应力破坏.
The numerical analysis softwares FLAC3D and 3DEC was used to simulate the stress collapse of the underground cavern intersection in a hydropower station. The causes and influence factors of the collapse were annalyzed. The results show that the type of collapse is caused by the combination of high stress and structural planes, and this collapse is unique to have timeliness. For this type of damage, supporting measures should be taken systematically and timely in the process of construction. Otherwise, the secondary stress damage is liable to be caused in the destruction area due to the timeliness of damage.
出处
《华北水利水电大学学报（自然科学版）》
2014年第5期28-32,共5页
Journal of North China University of Water Resources and Electric Power：Natural Science Edition
