高路堑中深孔挤压爆破的实践应用

The Analysis of Moderate and DeepBoring & Blowing Up in Deep Excavation

根据金丽温高速公路第十一合同段高路堑路段石方数量巨大且较集中的特点 ,结合有利施工地形 ,采用了中深孔挤压爆破的施工技术 ,确保了路基工程的按时贯通 ,取得了良好的工程效果。实践证明在高速公路高路堑开挖中推广和应用中深孔挤压爆破技术是保证施工进度和确保施工质量的有效措施。

Based on abundant and concentrative stone of deep excavation, moderate and deep boring and blowing up technique were used in Jin liwen freeway, then, good engineering effect was got. It proved that deep boring & blowing up in deep excavation of freeway is effective.