摘要
文章以蒲石河抽水蓄能电站输水隧洞为工程背景,以实现TBM机卡机脱困为工程目标,对让压锚杆在深埋软岩输水隧洞的支护效应与应用展开研究。采用ANSYS有限元软件进行建模,然后导入FLAC3D进行计算的方式对普通锚杆和让压锚杆的支护效应进行对比分析,最终确定在卡机段采用让压锚杆进行支护而在正常施工段采用普通锚杆支护方案,并取得了良好的工程效果。
Taking the water conveyance tunnel of Pushihe pumped storage power station as the engineering background, the paper studies the support effect and the application of the yielding anchor in the deep buried soft rock water conveyance tunnel in order to achieve the engineering goal of the TBM machine off-the-hook from the block tunnel section. The ANSYS finite element software is used to build the model, and then FLAC3D is introduced into the calculation, which could compare and analysis the support effect of the ordinary anchor and the yielding anchor. Finally, it is determined that the yielding anchor is used to support in the TBM block tunnel section, and the ordinary anchor support scheme is adopted in the normal construction section, then the good engineering effect is obtained.
出处
《东北水利水电》
2019年第7期1-3,71,共4页
Water Resources & Hydropower of Northeast China
关键词
普通锚杆
让压锚杆
支护效应
深埋软岩
输水隧洞
ordinary anchor
yielding anchor
supporting effect
deep buried soft rock
water conveyance tunnel
