摘要
利用平面应力试验台,分别构建了回采巷道1(锚杆矩形布置支护)和回采巷道2(锚杆拱形布置支护)模型。通过计算机软件进行数值模拟论证,分析对比测试数据和加载后两个巷道的变化情况,得出在回采巷道中,锚杆拱形布置支护比锚杆矩形布置支护能承受更大的上覆岩层的应力作用的结论,认为锚杆拱形布置支护效果优于锚杆矩形支护。
In this paper,plane stress test table is used to establish experimental models for roadway 1（bolt support in rectangular layout）and roadway 2（bolt support in arch layout）.Then,both models are loaded and the test data of the surrounding rock under load are recorded which is then put to computer numerical simulation software system for assessment.Through comparing the test data and changes of both roadways under loads,it shows that the effect of arch layout bolt support system can bear bigger stress than the rectangular layout bolt support system,i.e.arch layout bolt support system is better than rectangular layout bolt support sys-tem.
出处
《中国煤炭》
北大核心
2010年第11期48-51,共4页
China Coal
