摘要
深部软岩巷道具有高地压、大变形、难支护等特征,根据软岩工程支护的原理,即支架与围岩共同作用原理,正确分析了深部高应力软岩巷道的围岩变形机理。利用围岩巷道的变形速率,合理确定了二次支护的时间和参数;运用FLAC有限差分数值计算软件对试验结果进行检验,取得了理想的控制效果。
Deep soft rock roadway has characteristics such as high ground pressure, large deformation and hard supporting, according to the principle of soft rock engineering supporting, i.e., the interaction of support and surrounding rocks, the mechanism of deformation of surrounding rocks in deep soft rock roadway with high ground pressure is correctly analyzed. Based on the deformation speed of surrounding rock roadway, the time and parameters of secondary supporting is reasonably determined; FLAC finite difference fraction value calculation software is adopted to test the test result and the ideal control result was gained.
出处
《中国煤炭》
北大核心
2006年第11期31-33,共3页
China Coal
