TY -的A2 -林,佳盟,任Fengyu盟——周,宿州农村非盟——他,Rongxing盟——曹,简历盟——邹Kaihua PY - 2021 DA - 2021/09/02 TI -相似模型试验变形和破坏的时空演化规律的周围Rock-Induced屈服Multi-Mined-Out地区SP - 1224658六世- 2021 AB - Paishanlou的夹沟矿采空区深部金矿为研究对象,我们设计了室内物理模型试验相似,使用VIC-3D和抵抗压力传感器记录的垂直应力应变模型在测试期间。基于数字图像相关(DIC)分析的结果,我们深入分析了围岩的变形和破坏特征的过程中采空区塌陷。同时,围岩的破坏机理和规律的时间和空间演化之间的柱子在开挖过程中采空区进行了研究。根据屈服过程的特点,它可以分为三个阶段:初始屈服在一个小范围的拱角,连续拱顶崩溃,巨大和瞬时屈服的屋顶。之前发生的瞬时大屈服,屈服曲率拱的突然增加的现象出现。根据监测结果,也可以看到,上覆岩体的变形是最受腔,张成的空间和垂直应变深度成反比。岩体开挖引起的应力和应变之间的隔离支柱相邻两个采空区具有明显的时间延迟现象。应变的时间延迟效应成正比的空腔;相反,它的跨度腔成反比。具体来说,在整个实验过程中,目标区域的沉降试验模型的中间大两边小; simultaneously, the upper part is high, and the lower part is low. However, the variation of the stress value shows the characteristics of higher on both sides and lower on the middle area and higher on the upper part and lower on the lower part. To sum up, the experimental results show that the caving process can be predicted and effectively controlled manually, and a new treatment method can be provided for the control and prevention of the large caving and mining subsidence damage in the goaf combined with the field monitoring method. SN - 1687-8086 UR - https://doi.org/10.1155/2021/1224658 DO - 10.1155/2021/1224658 JF - Advances in Civil Engineering PB - Hindawi KW - ER -