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一、流变现象做岩体(岩块)变形试验时,可以看到:当荷重加上或卸荷后,立即出现压缩变形,但变形并不立刻停止,而要经过一段时间才慢慢稳定;而且荷重越大,稳定所需的时间越长。这就是岩体的流变现象。岩体变形与时间过程的关系曲线,就是岩体的流变曲线,如图1、图2。岩石力学试验研究表明,尽管不同的岩体具有不同的流变曲线形态;同类的岩体在不同的荷重作用下也有不同的流变曲线形态;同类的岩体,在同样荷重作用下,如果具有不同节
1. Rheological phenomena When doing the rock (rock) deformation test, we can see that when the load is added or unloaded, compression deformation occurs immediately, but deformation does not stop immediately, but it takes a while to stabilize slowly. And the bigger the load, the longer it will take to stabilize. This is the rheological phenomenon of rock mass. The curve of rock mass deformation and time course is the rheological curve of rock mass, as shown in Fig. 1 and Fig. 2 . Rock mechanics experimental studies have shown that although different rock masses have different rheological curve shapes, similar rock masses have different rheological curve shapes under different loads; similar rock masses, if they have the same load, have Different festivals