| 锚固法施工 |
| 添加时间：2019/2/18 8:44:43 浏览次数： |
| 在有裂隙的坚硬的岩质斜坡上，为了增大抗滑力或固定危岩，可用锚固法，所用材料为锚栓或预应力钢筋。在危岩上钻孔直达基岩一定深度，将锚栓插入，打入楔子并用水泥砂浆固定其末端，地面用螺母固定。采用预应力钢筋，将钢筋末端固定后要施加预应力，为了不把滑面底下的稳定岩体拉裂，事先要进行抗拔试验，使锚固末端达滑面以下一定深度，并且相邻锚固孔的深度不同。根据坡体稳定计算求得的所需克服的剩余下滑力来确定预应力大小和锚孔数量。 In order to increase the anti-sliding force or fix dangerous rock on the hard rock slope with cracks, the anchorage method can be used. The material used is anchor bolt or prestressing steel bar. Drilling holes in dangerous rock directly to a certain depth of bedrock, inserting anchor bolts into wedges, fixing the www.fenqieji.net.cnwww.qiezhiji.net.cnwww.weishengzhiji.com.cnwww.gangxianwei.net.cn www.wushuichulii.cnwww.jiedixuanxian.cnends with cement mortar, and fixing the ground with nuts. In order not to pull out the stable rock mass under the sliding surface, pull-out test should be carried out beforehand to make the anchorage end reach a certain depth below the sliding surface, and the depth of adjacent anchorage holes is different. The pre-stress and the number of anchor holes are determined according to the residual sliding force obtained from slope stability calculation. 锚固还有采用中空钢管，顶部一段采用多空管，进行预注砂浆，形成砂浆锚杆。 In addition, hollow steel pipes are used for anchoring, and multi-hollow pipes are used for the top section, and pre-grouting mortar is used to form mortar anchors. |
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