探矿工程-岩土钻掘工程
探礦工程-巖土鑽掘工程
탐광공정-암토찬굴공정
Exploration Engineering (Rock & Soil Drilling and Tunneling)
2015年
9期
72-75
,共4页
浅埋大跨度隧道%下穿公路%行车荷载%南厂沟隧道
淺埋大跨度隧道%下穿公路%行車荷載%南廠溝隧道
천매대과도수도%하천공로%행차하재%남엄구수도
shallow large-span tunnel%under-passing road%traffic load%Nanchanggou tunnel
成都至贵阳客运专线南厂沟浅埋大跨度隧道下穿公路，重载车辆繁多，对隧道施工安全及道路行车安全造成威胁。采用FLAC3D软件分别对无行车条件下和行车荷载作用下施工过程进行了数值模拟，对比分析了两种工况下的受力及变形，结果表明，行车荷载对该隧道施工影响较小。下穿施工过程及监测数据分析表明，南厂沟隧道下穿公路数值模拟是合理的，为顺利施工提供了有益指导。
成都至貴暘客運專線南廠溝淺埋大跨度隧道下穿公路，重載車輛繁多，對隧道施工安全及道路行車安全造成威脅。採用FLAC3D軟件分彆對無行車條件下和行車荷載作用下施工過程進行瞭數值模擬，對比分析瞭兩種工況下的受力及變形，結果錶明，行車荷載對該隧道施工影響較小。下穿施工過程及鑑測數據分析錶明，南廠溝隧道下穿公路數值模擬是閤理的，為順利施工提供瞭有益指導。
성도지귀양객운전선남엄구천매대과도수도하천공로，중재차량번다，대수도시공안전급도로행차안전조성위협。채용FLAC3D연건분별대무행차조건하화행차하재작용하시공과정진행료수치모의，대비분석료량충공황하적수력급변형，결과표명，행차하재대해수도시공영향교소。하천시공과정급감측수거분석표명，남엄구수도하천공로수치모의시합리적，위순리시공제공료유익지도。
In the construction of Nanchanggou shallow large-span tunnel which passed through the road for the passenger dedicated line of Chengdu to Guiyang, various heavy vehicles posed threat to the tunnel construction and road traffic safety. FLAC3D was used for numerical stimulation of construction progress under the conditions of no traffic and with traffic load re-spectively to analyze the stress and deformation under the different working conditions.The results showed that the traffic load had little effect on the tunnel construction.The analysis on the tunnel passing process and the monitoring data show that the numerical stimulation of under-passing Nanchanggou tunnel is reasonable, which provides useful guidance for con-struction.
