摘要
为认识和分析洞室抗爆性能，进一步优化洞室结构形式、改进洞室围岩加固措施，通过3次较大规模的物理模型试验，研究了3种典型装药位置对锚固洞室抗爆能力的影响。试验给出爆炸条件下锚固洞室围岩应力、洞壁应变和洞周裂缝等动态响应特征，得到了3种装药位置爆炸条件下各洞室断面的宏观破坏形态，分析了洞室的受力变形特点、破坏形态和抗爆能力。
In order to provide a reference for understanding and analyzing the anti-explosion performance of tunnels, optimizing tunnel structures, and improving reinforcement measures of surrounding rock mass, through three large- scale physical model tests, the influence of three typical charge locations on the anti-explosion capacity of anchored tunnels is studied. The dynamic response characteristics of anchored tunnels under the conditions of explosion, such as surrounding rock stress, wall strain and macroscopic fracture morphology of tunnels are gained from the tests. Further,the force-deformation characteristics, failure mode and anti-explosion capacity of anchored tunnels are analyzed.
出处
《防护工程》
2014年第1期13-19,共7页
Protective Engineering
关键词
岩土工程
锚固洞室
装药位置
爆炸
模型试验
geotechnical engineering
anchored tunnel
charge location
explosion
model test
