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随着中国经济的迅速发展,一些现有高速公路已不能适应交通量增长的要求,在尽量减少占地的前提下,高速公路改扩建工程逐步增多,路基拼接问题越来越受到大家的关注。本文结合大广高速公路衡水改扩建段的情况,针对不同形式下的路基加宽工程,怎样处理好新旧路基结合部位的地基、加强新老路基的结合强度,采取有效措施解决新旧路基不均匀沉降进行阐述。
With the rapid development of China’s economy, some existing expressways are no longer able to meet the requirements of traffic growth. With the minimization of land occupation, the expansion and reconstruction of expressways have been gradually increasing. The road embankment problem has drawn more and more attention. According to the situation of Hengshui Reconstruction and Expanding Section of Daguang Expressway, how to deal with the foundation of the new and old subgrade and the combination strength of old and new roadbed, and take effective measures to solve the uneven subsidence of old and new roadbed, To elaborate.