1) Superlarge arch underground rock mass
大跨度峒室
2) large chamber
大断面峒室
1.
Two new kinds of destressing methods by driving openings to maintain large chambers in soft rock were put forward,the destressing mechanism,reasonable parameters and practical conditions of them were analysed by means of FEM.
提出两种维护软岩大断面峒室的新型掘巷卸压法;借助有限元法分析了它们的卸压机理、合理参数和适用范围;最后,通过井下工业性试验,论证了掘巷卸压法的技术经济效益。
2.
Based on the specific condition of a large chamber in soft stratum in Baodian Coal Mine of Yanzhou Mining Administration, four kinds of destressing methods by driving adjacent opening were put forward; the mechanics ,reasonable parameters and practical condition of them were studied by means of FEM.
本文基于兖州矿务局鲍店煤矿一软岩大断面峒室的具体条件,提出了四种邻近开巷的卸压法方案,并借助有限元法对各种卸压法的机理、合理参数及适用条件进行了研究。
3) Chamber bulk blasting
峒室大爆破
4) wide span underground chamber
大跨度硐室
5) large span tunnel
大跨度洞室
1.
Study on the excavation scheme of the large span tunnel;
大跨度洞室开挖施工方案研究
6) Big span greenhouse
大跨度温室
补充资料：峒人
1.旧称西南地区聚居于山区的少数民族。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条