本文描述了嗣后充填空场法采场的充填和泄水的计算机模型。早期开发的二维模型是简单参数模型,它只对采场的几何形状进行二维模拟。把充填料当均质体考虑,新开发的三维模型比早期开发的二维模型进了一步。开发新的三维模型的目的是,将多种因素结合起来考虑,以便更好地模拟实际采场泄水并更接近实际。随着更多的现场数据的积累,现在已使上述目的成为可能民。特别是,三维模型能够模拟不规则采场几何形状和非均质充填料以及预测在采场内某一定位置的压力和流量,因此,三维模型比早期二维模型具有更广泛的应用前景。采场的几何形状和充填体内的水流量用基本单元法进行模拟,随时间和空间而变化的采场内充填料的位置也可以进行模拟。流态模拟包括对饱和和分饱和状态的模拟,对非饱和区的模拟使用了一个合理的比例,虽然使用的时间间隔较长,还是单元尺寸较大,但是特别注意考虑到了保持数字变化的稳定性。模型试验表明,开发三维模型并考虑有局部饱和流存在,对模拟充填的泄水过程具有重大的意义。该文给出了模型的应用示范实例。了解在水砂充填期间采场中孔隙压力的产生和消失,对充填作业的设计和挡墙设计意义很大。开发简化的二维模型已有相当长一段时间了。实践表明使用它是有效的,该模型在实际采场中的使用积累了相当的经验,并获得了与实际生产有关的大量数据。二维模型提供了采场泄水方面有价值的一般性资料,这些资料已经用于充填方案的设计,但是这种模型无法提供在采场充填体中特定位置(挡墙背后)孔隙压力发展的专门信息,此外,用一个可信的标准对模型进行校核是困难的,因为很明显水流的三维性充填体中的水流有重要的影响。鉴于这些缺点,芒特艾萨矿山有限公司决定开发一个改进模型用于分析采场充填泄水的三维状态,本文就是描述这个改进的模型。 This paper describes a computer model of the filling and drainage of stopes with subsequent filling of empty stopes. Early development of two-dimensional model is a simple parameter model, which only two-dimensional simulation of the stope geometry. Considering packing materials as homogeneous bodies, the newly developed 3D model takes one step further than the earlier developed 2D model. The goal of developing a new 3D model is to consider a combination of factors to better simulate the actual stope drainage and to be more realistic. With the accumulation of more field data, the above objective has now become possible. In particular, three-dimensional models can simulate irregular stope geometry and heterogeneous fillings and predict pressures and flows at a given location in a stope. Therefore, three-dimensional models have broader applications than earlier two-dimensional models. The geometry of the stope and the water flow in the filling body are modeled using the basic element method. The location of filling material in the stope, which varies with time and space, can also be simulated. Flow simulations include simulations of saturation and subsaturation, using a reasonable ratio for simulations of unsaturated zones, taking into account the longer time interval used or the larger unit size, with particular attention given to the stabilization of the digital variation Sex. The model tests show that it is of great significance to develop the three-dimensional model and consider the existence of local saturation flow, which is of great significance for the simulation of the filling of the drainage process. This paper gives an example of the application of the model. Understanding the occurrence and disappearance of pore pressure in the stope during filling of the water sand is of great importance to the design of the filling operation and the design of the retaining wall. It has been quite a while since we developed a simplified two-dimensional model. Practice shows that it is effective to use it. The model has accumulated considerable experience in the actual stope and obtained a large amount of data related to actual production. The two-dimensional model provides valuable general information on stope drainage that has been used in the design of filling schemes, but this model does not provide the development of pore pressure at a particular location in the stope filling body (behind the retaining wall) In addition, it is difficult to verify the model with a credible criterion because of the obvious information that it is clear that the water flow in the three-dimensional filling body has a significant influence. In the light of these shortcomings, Mount Isa Minerals Ltd. decided to develop an improved model for analyzing the three-dimensional state of filling and drainage in a stope. This article describes the improved model.