摘要
针对铜黄高速公路汤屯段大田双连拱隧道进口段埋深浅、地质条件复杂、存在偏压以及隧道结构受力复杂等特点,采用FLAC3D对隧道合理开挖方法进行了三维数值模拟研究.通过与隧道典型断面的拱顶下沉、支护结构受力、地表沉降的现场监测数据对比分析得出科学结论,能够动态地指导偏压双连拱隧道全过程施工,确保施工安全.
Aiming at the condition that Datian double - arched tunnel of Tongling - Huangshan highway which lies in shallow part is characterized by complicated structure stress and complex geological conditions, adopts the way that FLAC^3D is introduced to post - processing of model, and suitable method of double - arched tunnel in partial press is studied. Combined with the settlement of crown, the stress of the supporting structure and surface settlement in special section of tunnel w with the monitoring data and the simulation results, dynamic construction of double- arched and ensures were all obtained by monitoring in field. Compared scientific conclusion is obtained, which guides the ty in construction practice .
出处
《河南理工大学学报（自然科学版）》
CAS
2009年第2期164-169,共6页
Journal of Henan Polytechnic University（Natural Science）
