某悬索桥隧道锚室水害处治方案比选及优化

摘要

某岩溶地区悬索桥混凝土后锚室被渗入山体汇水的土体包围，排水不畅造成锚室大量积水，使得锚室构件的耐久性受到不利影响，危害到大桥的整体安全。经过对大桥水文、地质及锚室水害状况进行分析，设计了几种该大桥后锚室水害处治的合理有效方案。经比选确认“T形排水小隧道+排水帷幕”是技术、经济均可行的最佳方案，并对该方案进行了合理优化。%After a suspension bridge in karst region, concrete anchor chamber surrounded by soil infiltration of catchment, poor drainage caused anchor room a lot of water, and adversely affected the durability of anchor chamber components. By analyzing the hydrological geology and the status of the anchor chamber water disasters, several schemes are designed, and the “T + small drainage tunnel drainage curtain” is the best solution. At last, the scheme is optimized.