CAJ | 학술논문

以巴准铁路敖包沟隧道为依托，基于FLAC3D软件，采用摩尔-库伦弹塑性模型，对浅埋隧道下穿重载道路分步开挖及道路重载对开挖过程中变形的影响进行数值模拟；并将计算得到的浅埋隧道下穿重载道路的变形规律与实际监测结果进行对比分析。研究验证了计算模型和计算参数的合理性，表明重载运煤车辆对地表沉降和拱顶沉降影响量近三分之一，而对拱底变形影响很小；表明隧道施工期间应停止运煤通道运营，并给出4方面的施工控制措施。研究结果保障了敖包沟隧道下穿段的施工安全，对同类施工有一定借鉴作用。
이파준철로오포구수도위의탁，기우FLAC3D연건，채용마이-고륜탄소성모형，대천매수도하천중재도로분보개알급도로중재대개알과정중변형적영향진행수치모의；병장계산득도적천매수도하천중재도로적변형규률여실제감측결과진행대비분석。연구험증료계산모형화계산삼수적합이성，표명중재운매차량대지표침강화공정침강영향량근삼분지일，이대공저변형영향흔소；표명수도시공기간응정지운매통도운영，병급출4방면적시공공제조시。연구결과보장료오포구수도하천단적시공안전，대동류시공유일정차감작용。
Aiming at the Aobaogou railway tunnel, using Mohr-Coulomb model, this study conducts the numerical simulation for the excavation of shallow-buried tunnel undercrossing heavy-load road to discuss effects of heavy load on the deformation based on software FLAC3D. A comparative analysis is then made between the calculated result and the simulated one. It has proved the rationality of the proposed model and parameters, showing that the impact of overloading coaler on surface and the vault subsidence accounts for nearly a third, with little on deforma-tion of the vault bottom. It also suggests the coal transportation be suspended during the construction of tunnel with four aspects of control measures. The research results have ensured safety of Aobaogou Tunnel in construc-tion, which may be used as reference for similar constructions.