摘要
省道S312兴隆六道河至平谷将军关段是沿线地区对外出行的重要公路,但由于设计指标低,局部平纵指标差,大多路面损毁十分严重,对行车造成极大的安全隐患,亟需升级改建以提高公路等级,满足路网需求。依托河北省承德市思家岭隧道开展山区二级公路隧道总体布置方案比选及优化横断面参数,通过数值模拟进行隧道结构安全系数分析,并从建设难度、施工工期、通风及防灾救援、运营安全和工程投资等方面综合比选,最终确定出优选方案。
Provincial highway S312 Xinglong Liudaohe to Pinggu Jiangjunguan section is an important road to go out along the route. Due to the low design index and the poor local level and vertical index,most of the pavement damage is very serious. This poses a great potential safety hazard to driving,and needs to be upgraded and rebuilt to improve the road grade and meet the needs of the road network. Based on the Sijialing Tunnel in Chengde City,Hebei Province to develop the overall layout plan of mountain road tunnels and optimize the cross-sectional parameters.Through numerical simulation,the safety factor of the tunnel structure is analyzed,and comprehensive selection is made from the aspects of construction difficulty,construction period,ventilation and disaster prevention and rescue,operation safety and engineering investment,and finally the optimal plan is determined.
作者
刘海儒
郭鸿雁
宋恒祥
林起勋
Liu Hairu;Guo Hongyan;Song Hengxiang;Lin Qixun(Chengde Highway Engineering Management Office,Chengde,Hebei 067000,P.R.China;China Merchants Chongqing Communication Research&Design Institute Co.,Ltd.,Chongqing 400067,P.R.China;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400074,P.R.China;96943 Unit of the Chinese People’s Liberation Army,Beijing 102107,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2020年第S01期108-114,共7页
Chinese Journal of Underground Space and Engineering
基金
承德市科学技术局项目(201706A074)
国家重点研发计划(2017YFC0805305)
关键词
山区二级公路
特长隧道
结构安全
运营防灾
综合比选
second-class highway in mountainous areas
extra long tunnel
structural safety
operational disaster prevention
comprehensive comparison
