纳黔高速公路黑尼大桥变更路基方案研究  

Research on Change of Schemes for Roadbed of Heini Bridge on Naxi-Qianchuan Expressway

作　　者：贾学明[1,2] 

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067 [2]国家山区公路工程技术研究中心,重庆400067

出　　处：《公路交通技术》2011年第6期5-8,共4页Technology of Highway and Transport

基　　金：四川省交通厅科技项目(SC2008.1-3-1)

摘　　要：针对黑尼大桥修筑中存在的技术困难,采用物探手段对黑尼大桥岩溶发育情况进行勘察。在此基础上,对变更后岩溶路基的稳定性进行分析,并提出路基施工控制需要注意的问题。研究表明,黑尼大桥改为路基方案技术可行、经济节约、施工可控。Aiming at technical difficuhies in construction of Heini Bridge, this paper investigates development situations of karst of Heini Bridge by means of geophysical prospecting. On this basis the paper analyzes stability of karst roadbed after change and proposes problems that should be noticed in control of roadbed construction. The research shows that change of schemes for roadbed of Heini Bridge is feasible in technology, saving in economy and controllable in construction.

关 键 词：岩溶物探 桥改路 稳定性 

分 类 号：U416.1[交通运输工程—道路与铁道工程]