现代城市轨道交通
現代城市軌道交通
현대성시궤도교통
MODERN URBAN TRANSIT
2015年
1期
34-36,40
,共4页
地铁%盾构隧道%下穿拱桥%加固技术%研究
地鐵%盾構隧道%下穿拱橋%加固技術%研究
지철%순구수도%하천공교%가고기술%연구
metro%shield tunnel%passing beneath arch bridge%reinforcement technology%study
针对西安地铁1号线盾构隧道下穿朝阳门外护城河拱桥文物区工程,通过建立三维有限元模型,模拟分析盾构机掘进过程中土层沉降机理,对护城河桥受力进行理论分析,并提出护城河桥的沉降控制标准,制定出具有针对性的拱桥加固方案。同时,通过施工过程中对护城河拱桥的沉降监测,验证文中提出的沉降控制标准,为今后类似工程提供理论参考。
針對西安地鐵1號線盾構隧道下穿朝暘門外護城河拱橋文物區工程,通過建立三維有限元模型,模擬分析盾構機掘進過程中土層沉降機理,對護城河橋受力進行理論分析,併提齣護城河橋的沉降控製標準,製定齣具有針對性的拱橋加固方案。同時,通過施工過程中對護城河拱橋的沉降鑑測,驗證文中提齣的沉降控製標準,為今後類似工程提供理論參攷。
침대서안지철1호선순구수도하천조양문외호성하공교문물구공정,통과건립삼유유한원모형,모의분석순구궤굴진과정중토층침강궤리,대호성하교수력진행이론분석,병제출호성하교적침강공제표준,제정출구유침대성적공교가고방안。동시,통과시공과정중대호성하공교적침강감측,험증문중제출적침강공제표준,위금후유사공정제공이론삼고。
Aiming at Xi'an metro line 1 project, the shield tunneling passing beneath the moat arch bridge outside of Chaoyangmen cultural relics area. By establishing three-dimensional finite element model, the paper makes simulation analysis on soil settlement mechanism in shield tunneling, carries out theoretical analysis on the moat bridge stress, and puts forward the settlement control standard for moat bridge, develops schemes for arch bridge reinforcement. At the same time, through monitoring of moat arch bridge settlement in construction process, settlement control standards are presented.