爆破荷载下胶结充填体裂纹扩展规律研究-论文.pdf

技术与实践
Technology and Practice
爆破荷载下胶结充填体裂纹扩展规律研究
Research on the Crack Propagation Law of Cementing Backfill Body Under Blasting Load
喻圆圆，刘跃，隋显毅，吴霄
（浙江省高能爆破工程有限公司，杭州 ）
310012
YU Yuan-yuan, LIU Yue, SUI Xian-yi, WU Xiao
(Zhejiang Gaoneng Corporation of Blasting Engineering, Hangzhou 310012, China)
揖摘 要铱为探究爆破荷载下胶结充填体的裂纹扩展规律，论文基于高速摄影技术对强度为 （水泥添加量为 100kg/m3）的
胶结充填体模型进行观测，得到该强度下胶结充填体的裂纹扩展长度为 18cm，裂纹扩展持续时间为 ，裂纹初始扩展速度
为 ×103cm/s。
揖Abstract铱In order to explore the crack propagation law of cementing backfill body under blasting load, the paper observes the cementing
backfill body model with a strength of (the cement addition is 100kg/m3) based on the high-speed photography technology. It is
concluded that the crack propagation length of the cementing backfill body at this strength is 18cm, the crack propagation duration is ,
and the initial crack propagation spee