共查询到20条相似文献，搜索用时 359 毫秒
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本文论述了以通用计算机系统为基础,专用图家处理系统为辅助,探索一套适用于铀矿地质研究的多元地学信息综合分析方法,包括在通用机内编制一系列应用软件,进行遥感、地质、物化探数据的数字化输入、资料间的空间几何配准、线环形体密度统计分析乃至复合处理,并借助磁带传输手段,使得数据与专用图象的处理系统共享。这样充分利用了现有通用计算机资源,且符合建立专业信息系统的发展要求。同时通过与专用图象处理系统沟通,提高了再处理能力,改善了输出效果。利用本文设计的方法在460和外国铀矿地质研究及其它研究区里均获得了满意的应用效果。 相似文献
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化学矿山企业ＣＩＭＳ应用工程应既具现代企业生产、管理的通用性,又具有矿山生产的特殊性,并需与具体矿山相结合。建立的ＣＩＭＳ应以国际标准ＳＴＥＰ技术为基础,以面向对象数据库系统、先进操作系统为软件平台,以ＧＩＳ（地理信息系统）为支撑,对化学矿山企业生产中地质、采矿、选矿进行系统集成,并将管理信息、决策信息、计算机辅助设计融入其中。建立一个以市场需求与成本控制为核心,人 机协调的ＣＩＭＳ。实施化学矿山ＣＩＭＳ应用工程,要通过计算机系统集成取得效益,对生产过程进行适度计算机控制,强调人的作用。 相似文献
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溶蚀岩体三维随机洞体数学模型的设计 总被引：6，自引：2，他引：4
溶蚀岩体是地质体中一种特定的岩体 ,它在水流等自然因素作用下 ,生成了许多溶蚀洞体 ,本文首先对作为其载体的三维地质体进行数学描述和显示 ,然后对如何确定椭球洞体形状和大小、复杂洞体的生成、三维随机洞体的数学模型以及确定性洞体的数学描述和计算机显示进行了详尽的阐述。本文提出的溶蚀岩体三维随机洞体的数学模型为溶蚀岩体的溶蚀率和渗透特性的研究提供了可视化手段 ,能够有力地指导溶蚀岩体三维随机洞体的计算机显示的编程实践 相似文献
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殷坤龙 《水文地质工程地质》1993,20(5):21-23
本文在滑坡灾害预测分区的信息模型基础上,重点讨论了灾害预测的计算机制图化的主要过程:因素的数值化,单元边界的确定和彩色图件的绘制。运用中国地质大学计算机系开发的Mapcad系统,在Mv/10000计算机上较好地处理了不规则图幅边界的自然裁剪,不规则单元的输入,以及彩色图件的绘制等问题。 相似文献
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为适应教学科研和生产的需要,自行设计SCS-51单片机实验、开发机系统。此系统目前已作为开设计算机实验课的实验机,作为学生和科技工作者搞计算机研究的开发机,在工业控制系统中作为实时程控机。 相似文献
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The development of a standardized system for conveniently coding lithologic-log data for use in the digital computer has long been needed. The technique suggested involves a reduction of the original written alphanumeric log to a numeric log by use of computer programs. This numeric log can then be retrieved as a written log, interrogated for pertinent information, or analyzed statistically.publication authorized by Director, U.S. Geological Survey. 相似文献
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北京矿产地质研究院是有色金属行业应用计算机较早的单位,30年来从国产中型计算机到现今完善的计算机网络系统,完成了大量的科研项目并取得了不少有价值的计算机应用成果与效益.更由于网络技术的发展与普及,使地研院的科研与勘查、管理与经营的层次与水平得到了有效的提高,文章结合地研院计算机应用发展过程的角度阐述现代计算机网络的基础概念与应用发展. 相似文献
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The conventional Cornell’s source-based approach of probabilistic seismic-hazard assessment (PSHA) has been employed all around
the world, whilst many studies often rely on the use of computer packages such as FRISK (McGuire FRISK—a computer program
for seismic risk analysis. Open-File Report 78-1007, United States Geological Survey, Department of Interior, Washington 1978) and SEISRISK III (Bender and Perkins SEISRISK III—a computer program for seismic hazard estimation, Bulletin 1772. United
States Geological Survey, Department of Interior, Washington 1987). A “black-box” syndrome may be resulted if the user of the software does not have another simple and robust PSHA method
that can be used to make comparisons. An alternative method for PSHA, namely direct amplitude-based (DAB) approach, has been
developed as a heuristic and efficient method enabling users to undertake their own sanity checks on outputs from computer
packages. This paper experiments the application of the DAB approach for three cities in China, Iran, and India, respectively,
and compares with documented results computed by the source-based approach. Several insights regarding the procedure of conducting
PSHA have also been obtained, which could be useful for future seismic-hazard studies. 相似文献
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计算机的勘探模拟系统在国外已进入实用阶段。目前我们正在做这方面的尝试。在初期设想的计算机勘探系统中很多是在剖面图上进行的,所以剖面图的交互式编辑子系统是整个系统核心的部分,它的主要设计思想是用户通过计算机键盘操作、用类似手工的方法在计算机屏幕上画出一张供自己使用的地质剖面图,并且还有修改、删除、存贮等功能,使用户感到直观、灵活、方便且易于比较。 相似文献
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M. Iovea G. Oaie C. Ricman G. Mateiasi M. Neagu S. Szobotka O.G. Duliu 《Engineering Geology》2009,103(3-4):119-126
An X-ray multi-purpose dual-energy computer tomograph has been used to investigate a variety of objects of geological interest such as unconsolidated sediments (sand, silt, clay, mud) and/or metamorphic rock samples. By using an appropriate set of standard materials as well as a proper version of filtered back projection reconstruction algorithms, we have obtained for each studied sample two images, depicting with an error of 2 to 3% densities as well as the effective atomic number. In the case of unconsolidated sediment samples, the computer tomograph has been also used to obtain good quality radiographs, prior to obtaining the tomographic images of the cross-sectional area of interest. Both radiographs and computer axial tomography images had a spatial resolution of 0.4 to 0.5 mm. Digital radiographs as well as tomographic images of unconsolidated sediment samples show with clarity internal features such as grain sizes, laminae thickness and orientation, bioturbations, revoked materials or fragments of wood. Computer tomography analysis of rock samples reveals rheological features in the relationship with metamorphism and deformation, image contrast regarding density and atomic effective number of constituents, as well as significant correlations between physical parameters and internal structures or textures. 相似文献
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主要论述用计算机代替手工实现综合解译的过程。该过程归纳为：从专业领域获取知识组织成专业模型，再将其转变翻译成知识模型，然后转移到计算机内实现推理目标。重点论述从专业模型到知识模型的过渡和推理目标的实现。通过在河北、山西的实践，证明用计算机综合解释圈定找矿靶区是可行的 相似文献
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M. A. Hicks 《国际地质力学数值与分析法杂志》1995,19(1):1-27
The principal features involved in the implementation of the double-hardening constitutive law Monot1 into a general purpose computer algorithm called MONICA2,3 are described. These include details of general program structure and of steps taken to overcome problems such as computer storage, computer run-time, algorithm stability and problems associated with the stress–strain singularity which exists at the intersection of the two yield surfaces. 相似文献
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地质图形处理系统设计 总被引：5，自引：0，他引：5
介绍了地质图形计算机处理系统的系统功能、系统结构、图形数据库结构以及图形生成与编辑;讨论了在开发地质图形计算机辅助设计或绘图系统时,应如何体现专业特点,如何在数据中表达地质现象的地层和构造意义,如何在地质模型建立中融入专业人员的地质背景知识,以及怎样设计出实际有效的地质图形处理软件系统等问题。 相似文献
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Mehdi Amini Abbas Majdi Mohammad Amin Veshadi 《Rock Mechanics and Rock Engineering》2012,45(4):519-532
Block-flexure is the most common type of toppling failure in rock slopes. In this case, some rock blocks fail due to tensile bending stresses and some overturn under their own weights. In this paper, first, a literature review of toppling failures is summarized. Then, a theoretical model is proposed for rock slopes with a potential for block-flexure toppling instability. Next, a new analytical approach is presented for the stability analysis of such slopes. Finally, a special computer code is developed for a quick stability assessment of the failures based on the proposed method. This code receives the rock slope parameters from the user as the input data and predicts its stability, along with the corresponding factor of safety against the failure, as the output. In addition, two case studies are used for practical verification of the proposed approach and the corresponding computer code as well. 相似文献
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计算流体地球化学研究的进展 总被引：3，自引：0，他引：3
成矿作用的化学机理可以通过实验和计算机模拟进行研究。随着计算机运算能力的不断增强 ,在地球化学中正在形成一门新兴学科———计算地球化学。其中热质输运模拟、化学质量迁移数值模拟和流体输运化学反应耦合动力学研究取得了显著进展。建立在Darcy定律和守恒方程基础上的多孔介质热质输运模拟通过流函数图、等温线图及速率矢量图等 ,从古水文学和流体地球化学方面高度动态研究成矿作用。根据化学和热力学原理进行的化学质量迁移数值模拟则通过矿物和流体中化学物种的热力学数据 ,预测多组分体系中发生的流体岩石相互作用 ,定量揭示经历了复杂化学反应进程的成矿作用的化学行为。将上述两方面结合的流体输运化学反应耦合动力学 ,可以从时间和空间上模拟真实成矿流体系统复杂的动力学行为 ,是计算流体地球化学的发展方向。 相似文献
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W. T. C. SOWERBUTTS 《Geology Today》1988,4(2):54-56
Now that increasing quantities of geological information are being handled by computer, computer graphic techniques are being used more and more to display the information in graphical form. In this article I show that computer graphic techniques for displaying surfaces have applications in many branches of geology. 相似文献
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D. Kolymbas 《国际地质力学数值与分析法杂志》1991,15(8):593-604
In this paper a method is presented which helps to develop and to check constitutive laws by means of computer experiments. The exposition has been carried out along the formalism of hypoplasticity, which has been introduced as a generalization of hypoelasticity. Several results of computer experiments are graphically represented. 相似文献