摘要
针对沿空留巷巷旁充填体力学参数中有许多为随机变量的特征,根据沿空留巷巷旁充填体支护结构稳定性极限状态方程,运用工程结构可靠性理论建立了沿空留巷巷旁充填体支护结构可靠性模型.采用蒙特卡罗法在Matlab环境下计算了其结构可靠度,编程过程简化,计算速度快,精度高,且不受极限状态方程非线性、随机变量非正态的限制,并指出了提高沿空留巷巷旁充填体支护结构可靠度的方法和措施,为沿空留巷巷旁充填体支护参数设计和优化提供了科学依据.
Considering that many mechanical parameters being random variable is the characteristic of the roadway-beside filling body support structure of gob-side entry, and according to stability limit state equations of the roadway-beside filling body support structure of gob-side entry, and by using engineering structures reliability theory, a reliability model of the roadway-beside filling body support structure of gob-side entry is set up. The reliability of filling body support structure is calculated by the method of Monte-carlo and Matlab with a high precision, which is not only simple to program and quick in calculation, but also without the limit of nonlinear limit state equations and non-normal random variables. And the methods of improving reliability are proposed, which provide scientific evidences for the design and optimization of filling body support parameters.
出处
《矿业工程研究》
2009年第2期14-16,共3页
Mineral Engineering Research
基金
国家自然科学基金资助项目(50674046)
湖南省教育厅科研资助项目(07C293)
湖南科技大学硕士启动基金项目(E50878)
