摘要
为提高预测瓦斯含量的精度,利用六节点三角形有限单元法进行预测.通过理论推导,构建了采用六节点三角形单元法预测瓦斯含量的计算模型,根据计算模型编制了C++语言计算程序,并应用于大平矿区瓦斯含量预测.预测结果与实测瓦斯含量相比较表明,六节点三角形单元模型预测瓦斯含量的误差为-10.07%～8.06%,比三节点三角形单元模型预测误差-19.4%～8.79%小.因此,应用六节点三角形单元模型能够有效提高瓦斯含量预测精度.
In order to improve the prediction accuracy of the gas content,an infinite element method of the triangular elements with six nodes is used.Mathematical model for the estimate of the content of the gas value is established by using the triangular elements with six nodes through the theoretical deduction.Based on this model,the computer program by code of C＋＋ is made out,which is applied in the estimate of the content of the gas value in Daping Coal Mine.The comparison of the estimated gas value and the field measurements show that the error between them is range from -10.07% to 8.06% by using triangular element with six nodes,but the error is range from -19.4% to 8.79% by using the triangular element with three nodes.Therefore,using the triangular element with six nodes is more exact in prediction of the content of gas value.
出处
《河南理工大学学报（自然科学版）》
CAS
2010年第2期140-146,共7页
Journal of Henan Polytechnic University（Natural Science）
基金
国家自然科学基金资助项目(50804013)
关键词
六节点
三角形单元
有限元
瓦斯含量
six nodes
triangular element
finite elements
the content of gas
