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首页> 外文期刊>Journal of coal science & engineering (China) >Analysis on incremental cohesion of surrounding rock due to prestressed cable anchor
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Analysis on incremental cohesion of surrounding rock due to prestressed cable anchor

机译:预应力锚索引起的围岩增量内聚力分析

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摘要

A new method for determining the incremental cohesion ΔC_m of surrounding rock due to prestressed cable anchor is presented, and the formula for ΔC_m are deduced and ΔC_m distributions also are discussed, based ion the two anchorage effects, one is the effect with the prestressed value Δδ_3 of cable anchor improving the stress state of surrounding rock and increasing the surrounding rock strength, the other is the fully encapsulated effect. The determined incremental cohesion ΔC_m is subjected to the model test and field measurement in the references, and coincides well with those tested results.
机译:提出了一种确定预应力锚索引起的围岩增量内聚力ΔC_m的新方法,推导了ΔC_m的公式,并讨论了ΔC_m的分布,基于两种锚固效应,一种是预应力值Δδ_3的效应。锚索的作用是改善围岩的应力状态并增加围岩的强度,另一种是完全包封的作用。所确定的增量内聚力ΔC_m在参考文献中进行了模型测试和现场测量,与这些测试结果非常吻合。

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