1) new probability integral
新概率积分
1.
Study on a new probability integral 3D model for forecasting solution mining subsidence of rock salt;
岩盐水溶开采沉陷新概率积分三维预测模型研究
2.
Based on the new probability integral 3D model for forecasting the solution mining subsidence,the transfer rule of superincumbent strata in mining subsidence is studied and a prediction model of stratification transfer for mining subsidence is developed.
在盐岩水溶开采沉陷新概率积分三维预测模型的基础上,对开采沉陷上覆岩层的传递规律进行研究,提出开采沉陷分层传递预测模型,该模型可以考虑不同岩层岩性对开采沉陷的影响,能够有效提高非规则采空区开采沉陷的预测精度。
2) probability integral
概率积分
1.
Expounds the theories of applying probability integral method to analysis coal mining and surface subsidence and applying cubic spline interpolation method to draw the subsidence graphs.
在阐述应用概率积分法进行煤炭开采与地表沉陷的分析和应用三次样条插值法进行沉陷图形绘制的理论之基础上,介绍了煤岩开采与地表沉陷的预计程序的技术特点·举例说明了该软件最终输出的等值线图以及地表沉陷成果表
2.
In this paper,I gove several calculated methods of the probability integral.
文章给出计算概率积分∫ ∞-∞e-x2 dx的几种简便方法 。
3) probability integration
概率积分
1.
Based on the prediction model of probability integration method, the paper studied the utility method of mining subsidence dynamic prediction, gave a formula for computing subsidence velocity factor.
在概率积分法预计模型的基础上,提出了开采沉陷动态预计的实用算法,给出了下沉速度系数C的计算公式。
4) probability integrals
概率积分
1.
It presents the generalized calculating methods and the formularized generic results of integrals ~_0x~ne~(-αx)dx and ~_0x~ne~(-(αx)~m)dx and probability integrals ~_0x~ne~(-αx~2)dx and some frequently used integrals in (Boltzmann) statisticsBose statistics and Fermi statistics.
给出了积分∞∫0xne-αxdx、∫∞0xne-(αx)mdx和概率积分∞∫0xne-αx2dx以及在Boltzmann统计、Bose统计和Fermi统计中的常用积分的普遍求解方法和公式化的一般结论。
5) Probability integral method
概率积分法
1.
Improvement on probability integral method prediction come down quantity;
概率积分法预计下沉量的改进
2.
Probability integral method, as a main method used in China in mining subsidence prediction, has gained wide application.
概率积分法作为我国开采沉陷预计的主要方法,目前获得了广泛的应用;但由于基本假设与实际情况偏差较大,在其实际应用中存在许多缺陷。
3.
By using probability integral method, the surface distortions were calculated and forcasting result was given.
针对工作面进入工业广场煤柱下回采设计了12个开采方案,采用概率积分法对各方案地表变形情况进行了理论计算和分析,得出了地表各处的变形预计结果。
6) probability-integral method
概率积分法
1.
Optimal selection of prediction parameters for probability-integral method using particle swarm optimization and BP neural network;
基于粒子群优化神经网络的概率积分法预计参数的确定
2.
On mining subsidence anticipate analysis on the base of probability-integral method
基于概率积分法的开采沉陷预计分析
3.
According to poor integrality of overlaying rock in Beiminghe Iron Mine,China,a research was done for predicting the subsidence of metal mines based on geographic information system(GIS) and probability-integral method.
根据北洺河铁矿覆岩整体性差的特点,将基于地理信息系统(GIS)和概率积分法的MSDAS-GIS系统应用于采用无底柱分段崩落法的金属矿山的开采沉陷预计。
补充资料：地表移功计算概率积分法
地表移功计算概率积分法
probability integration method for calculation of surface movement
d lb.oo yrdong jlsuan 9011自J.fenfo地表移动计算概率积分法(probab，l‘ty in‘e-gration method for ealeulation of surfaee move-ment)把岩层移动看作服从统计规律的随机过程，从而将开采引起的地表下沉剖面表示成概率密度函数积分公式的预计方法。该法由波兰克诺特(St.Kn以he)等人于20世纪5。年代提出。后来波兰季特维尼申(JI一:twinlszyn)将岩层看作随机介质来研究地表移动，也导出了相同结果。概率积分法的基本思路是把地表和岩层移动现象视为随机事件，将采区分解为无限多个微小单元，由此人手计算所有单元对岩层或地表影响的总和，并计算地表移动和变形值。 地表移动计算概率积分法在煤矿得到广泛应用。该法主要适用于矿体水平成层或缓倾斜成层的情况，对大多数金属矿山，有较大局限性。该法关于下沉曲线理论值对称于拐点与实际情况有所不符，因此已出现一些修正方法。
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