Effect of keeping core soil on stability of tunnel working face 沉管干振挤密抗拔防浮碎石桩抗拔试验研究
Furthermore , the results of laboratory tests , totally 57 small - scale specimens , are presented that it is a much complex process that load being transferred from inserted angle steel to concrete foundation 3 、本次57个试件的角钢抗拔试验表明,作用力从插入角钢传到混凝土基础是一个非常复杂的过程。
This kind of adglutinate mixed with u expansion admixture can grip anchor bolts tightly even underwater , as can be seen from the pull - out type tests for anchor bolts when the mortar age is over 10 days . ( 2 ) the author lays the supporting piles as a arched shape 将掺加了u型微膨胀剂的砂将作为锚杆水下胶结物,由锚杆龄期10天的抗拔试验结果可以看出,这种胶结物的握裹效果很好。
In this paper , based on the model test of inserted foundation , the uplift mechanism , of inserted foundation , which has been applied widely in transmission tower , is studied and discussed deeply . and then , some useful results are obtained 论文通过插入式基础的真型抗拔试验,对在送电线路中应用已是十分广泛的插入式基础抗拔机理进行了深入的研究和探讨,得出了一些有意义的结论。
Secondly , the basic principle of the model test is discussed . a pullout loading test equipment is designed , and then , a great deal of tests and data - gathering apparatuses are introduced , including the examination approaches and processes 2 、分析真型试验的试验原理,并设计出一套轴向抗拔加载试验装置,详细介绍了各种试验和数据采集仪器,以及基础进行真型抗拔试验的试验方法及步骤。