西兰公路太峪黄土隧道充填注浆技术
PACKING AND-GROUTING TECHNIQUE FOR TAIYU LOESS TUNNEL OF XI’AN-LANZHOU HIGHWAY
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摘要: 黄土隧道村砌后,回填密度差、空隙多,潜在隐患大。本文以太峪黄土隧道为例,介绍了充填注浆的实践经验,质量检验表明,注浆起到了充填、加固、止水的效果。Abstract: After the lining of loess tunnel,the backfill bensity is poorer,with more pores and more potential hidden danger. Taking the Taiyu loess tunnel as an example,the practical packing-and-grouting experience is introduced.The quality check indicated that the packed,reinforced and water-sealed effectivenesses are attained by the grouting.