摘要
以砌体梁结构的“Ｓ－Ｒ”稳定理论为指导，运用相似模拟试验和数值计算等方法，对采场直接顶岩体的受力边界条件、位移场分布特征、ｐ－Δｌ关系曲线等进行了研究．视直接顶为可变形体，得到传统的ｐ－Δｌ双曲线关系并不适用于厚度为６倍采高时的直接顶．本文的研究结果是对传统支架围岩关系的补充和完善．
Based on the theory of “S-R” stability for the voussoir beam, the mechanics boundary condition, the distribution feature of displacement field and the p -Δ l curve of the immediate roof are analysed by using the method of simulated model test and the numerical calculation. Regarding the immediate roof in working face as deformable medium, traditional p -Δ l curve is not suitable for the immediate roof which thickness equals 6 times mining height. The research results of this paper give the supplement and perfect of the traditional support and surrounding rock relationship.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1998年第6期575-579,共5页
Journal of China Coal Society
基金
国家自然科学基金
煤炭科学基金
关键词
砌体梁
稳定性
支架-围岩关系
采场
工作面支护
voussoir beam, theory of “S-R” stability, p -Δ l curve, support and surrounding rock relationship
