摘要
潍烟高铁穿越凤凰山老垃圾填埋场,为研究具有参考价值和指导意义的施工方案,结合凤凰山垃圾填埋场地质情况和施工基础成本,采用方案对比的方法对压低铁路纵断面的路基方案、隧道方案、贯通方案与拉高纵断面方案等4种方案进行了详细对比,综合考虑工程投资、技术难度、实施难易程度、对周边环境和社会影响等因素,最终确定最优方案。研究表明:(1)路基方案工程风险小,沉降易控制,但占用土地较隧道方案增大50%,土方量和石方量增大3~5倍,且垃圾土处理困难,所需投资较多;(2)隧道方案对环境影响小,投资较少,但周围存在瓦斯等不良地质现象,施工难度高;(3)拉高纵断面方案环境影响小,投资较少,但存在一定的技术风险;(4)贯通方案对环境和社会影响较大,但对场地道路影响小,投资最少。
In order to provide a construction scheme with reference value and guiding significance for the Weiyan Railway to pass through the Fenghuang Mountain old landfill site,this paper used the method of scheme comparison to make a detailed comparison of four schemes,combining with the geological condition of Fenghuang Mountain landfill site and the current construction foundation cost.The subgrade scheme,the tunnel scheme,the through scheme and the high longitudinal section scheme were compared.Considering the project investment,technical difficulty,implementation difficulty,the impact on the surrounding environment and society and other factors,the construction scheme was finally determined as the through scheme.The following conclusions are drawn:(1)The subgrade scheme has low engineering risk and easy control of settlement,but the land occupied is 50%larger than that of the tunnel scheme.The amount of earthwork is 3-5 times larger,and the disposal of waste soil is difficult which requiring more investment.(2)The tunnel scheme has little impact on the environment and society and less investment,but there are bad geological phenomena such as gas around the tunnel,and the construction is difficult.(3)The scheme of raising the profile has little environmental and social impact and less investment,but there are certain technical risks.(4)The through scheme has a great impact on the environment and society,but has little impact on the site road and has the least investment.
作者
王成青
WANG Chengqing(China Railway Design Corporation,Tianjin 300142,China)
出处
《铁道勘察》
2023年第6期50-55,共6页
Railway Investigation and Surveying
关键词
高速铁路
方案比选
垃圾填埋场
贯通方案
施工方案
high-speed railway
scheme selection
dump landfill
through scheme
construction scheme
