摘要
为了45 m钢筋混凝土T梁安全跨线过孔架设,通过防护墙的抗倾覆稳定性、抗滑稳定性以及基底承载力计算,以防护棚架设置的有效性为研究对象,对跨线桥上跨施工对下行线的影响,防护棚架、架桥机本身安全性能以及其技术性能进行了详细分析,分析结果表明,晋城至长治高速公路T梁跨线桥施工制定了科学、成熟、有效的技术措施,充分考虑桥梁施工对周边环境的影响,最大限度地降低工程施工对高速公路运行秩序、运营安全带来的不利影响,所采用的施工工艺基本合理,跨越方式及跨越角度,梁底距高速公路路面最小垂直净距,两侧墩台距公路路基最小水平净距满足相关法规中对公路安全保障相关要求。
Reinforced concrete T beam to 45 m safe cross line via erect,through the resistive overturning stability of the protective wall,anti-sliding stability and basal bearing capacity calculation,with protective effectiveness of scaffolding set as the research object,on the bridge crossing across the construction influence on downlink,safety protection and settled itself and its technical performance are analyzed in detail,the analysis results show thatJincheng to Changzhi Expressway T beam span bridgeto develop scientific,mature,effective technical measures,give full consideration to the influence of bridge construction on the surrounding environment,minimizing construction of highway operation order,negative influence of operation safety,The construction technology adopted is basically reasonable,span mode and span Angle,the minimum vertical clean distance between the bottom of the beam and the highway pavement,and the minimum horizontal clean distance between the piers and the highway subgrade meet the relevant requirements for highway safety in relevant regulations.
作者
李亮宾
胡富平
申铁军
李逢源
LI Liang-bin;HU Fu-ping;SHEN Tie-jun;LI Feng-yuan(Shanxi Road&Bridge Construction Group Co.,Ltd.,Taiyuan,Shanxi 030006,China)
出处
《黑龙江交通科技》
2021年第5期97-99,共3页
Communications Science and Technology Heilongjiang
关键词
T梁
跨线
架设:安全风险
防护
T beam
cross line
erection:safety risk
protective
