| 岩体结构随机模型模拟方法 |
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| 引用本文： | 徐继先,许兵,王思敬.岩体结构随机模型模拟方法[J].地质科学,1988,0(3):272-282. |
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| 作者姓名： | 徐继先 许兵 王思敬 |
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| 作者单位： | 中国科学院地质研究所 |
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| 摘 要： | 本文论述利用勘探平硐资料研究岩体结构面分布规律及进行岩体结构面随机模型模拟方法。文中首先论述了描述结构面空间分布规律的五个几何参数,即产状、形态、规模、密度和张开度及其相应的概率分布型式;其次简单的介绍了 Monte-Carlo 方法在模拟结构面分布中的应用;最后结合三峡工程实例,论述了利用坝基勘探平硐编录图及现场记录估计结构面产状、迹线长度、中点密度分布参数的方法,并且给出了在参数估计基础上进行 Monte-Carlo模拟的部分结果。本文为岩体结构力学分析提供了一个定量的结构模型。
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| 关 键 词： | 不连续面 中点密度随机变量 概率密度 蒙特卡罗模拟 |
| 收稿时间： | 1986-10-01 |
| 修稿时间： | 1986-10-01; |
SIMULATION METHOD OF STOCHASTIC PATTERN OF ROCK MASS STRUCTURE |
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| Xu Jixian Shu Bing Wang Sijing.SIMULATION METHOD OF STOCHASTIC PATTERN OF ROCK MASS STRUCTURE[J].Chinese Journal of Geology,1988,0(3):272-282. |
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| Authors: | Xu Jixian Shu Bing Wang Sijing |
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| Institution: | Institute oj Geology, Academia Sinica, Beijing |
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| Abstract: | This paper describes spatial distributed character izations of rock mass discontinuities and stochastic simulation method of rock mass structure patterns using the geological data acquired from prospecting drift wall mapping. It, firstly, shows the five geometric parameters, i.e. orientation, form, size, frequency, openness, and their probabilistic distributions. Secondly, it delineates the application of Monte Carlo technique in simulating fracture system of rock mass. And finally, taking the Three Gorges hydroelectrical project as an example it states the ne-thod of estimating the parameters of the orientation, length, midpoint density of discontinuity, etc., and presents some Monte Carlo simulation results, this paper will provide a quantitative structure model for the analysis of rock mass structural mechanics. |
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| Keywords: | discontinuity midpoint density stochastic variable probabilistic density Monte Carlo simuiaron |
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