群锚效应 土钉墙或复合土钉墙，锚杆间距过密或注浆压力过大造成支护土体对杆体摩擦力降低，施工中直观体现为锚杆支护范围以外的地面出现裂缝或位移的现象。
目的研究锚栓边距和间距的变化对混凝土结构后锚固群锚抗剪性能的影响。
An experimental study was carried out on shear bearing capacity of post-installed anchor group in concrete structure with different anchor edge distance and anchor space length.
目前，中(下)承式拱桥吊杆越来越多的采用预应力钢绞线和预应力群锚锚固体系。
Today the more and more lifting equipment in middle or lower arch bridge are using pre-forced steel wring line and pre-forced anchor system.
介绍了后锚固群锚连接在拉剪复合受力情况下承载力计算的两种方法：弹性方法和塑性方法。
Two methods-elastic approach and plastic approach-for calculating the resistance capability of post-installed multiple-anchor connections under combinations of tension and shear loads are presented.
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