摘要
通过对盾构下穿国铁火车站站场的风险分析,指出站场变形控制的重点,并采用数值模拟对比分析了盾构侧穿站场雨棚桩基在加固前后不同条件下对雨棚变形和受力的影响,结合风险分析与数值分析结果,提出盾构下穿站台雨棚桩基变形的针对性风险控制措施。施工监控量测数据表明,盾构下穿火车站站场的风险得到了较好控制,满足火车站站场对轨道变形要求,保障了火车站的正常运行。
Risk of shield tunnelling through under the railway station was analyzed.And numerical simulation analysis of deformation and stress influence of shield tunnelling through piles of railway station platform roof structure with and without reinforcement were researched.And countermeasure risk controls were put forward combined with the numerical simulation results.Monitoring data had shown that the construction risk of shield tunneling through under railway station was controlled well,which met with the requirements of rail deformation and ensured the normal running of the station.
出处
《地下空间与工程学报》
CSCD
北大核心
2012年第6期1328-1332,共5页
Chinese Journal of Underground Space and Engineering
关键词
盾构隧道
火车站站场
施工风险
风险控制
shield tunnel
railway station platform
construction risk
risk control
