郑金泉摄影作品选

郑金泉,河南省新密市人。1952年10月1日出生,武汉科技大学毕业,在职研究生文化程度。河南省摄影家协会会员。曾任郑州市地矿局局长、党组书记,郑州市地矿煤炭局局长、党委书记,郑州市安全生产监督管理局（煤炭局）局长、     

贴近摄影与倾斜摄影融合建模关键技术研究

近年来,倾斜摄影测量在城市三维建模中发挥越来越重要的作用。但倾斜摄影建模受视角影像,存在的建筑物侧面纹理信息不足的问题。本文研究了影像匹配及融合建模的关键技术,提出了两种贴近摄影与倾斜摄影融合建模的技术方法,选取了合适的试验区进行融合建模实验,并验证了倾斜摄影建模模型及融合建模模型的精度。实验结果表明,通过贴近摄影与倾斜摄影融合建模的方式可很好的解决倾斜摄影精细建模存在的变形及细节不足的问题。     

SPACE PHOTOGRAPHY: A NEW ANALYTICAL TOOL FOR THE SEDIMENTOLOGIST

Geologists increasingly concerned with detailed laboratory analyses at times overlook space-age techniques that promise the collection of valuable sedimentological data. Orbital remote sensing, and particularly space photography, can provide synoptic environmental data for geoscientists including those familiar with applying aerial photography to the analysis of sedimentary environments. Color space photographs obtained incident to the Gemini Program provide unique tools for analyzing sedimentary environments and processes and provide data that cannot be duplicated by conventional aerial photographic techniques. The principal advantages of orbital geoscience data collection include frequency of coverage leading to environmental analysis within the full spectrum of seasonal contrasts, and opportunities for environmental syntheses by synoptic observations. Gemini space photography is an available source of semi-quantitative data concerning changing environmental phenomena and mechanisms of sediment distribution. It also enables the survey and inventory of global sedimentary landforms. With the application of advanced sensors, increased system resolution, and repetitious photographic coverage, speedier and more reliable quantitative sedimentological analyses can be performed.     

PHOTOGRAPHIC BEACH MEASUREMENTS

An automated photographic method is described for recording short-interval changes in sand levels on a natural beach. Results of photographic technique are compared with profiles obtained by conventional surveying methods. Lapse-time photography offers a wide range of possibilities for accurate and efficient beach measurements when information in large amounts is required.     

北海市高精度特大比例尺航空摄影试验研究

本文介绍了高精度特大比例尺航空摄影的技术难点、国内现状和新型航摄系统的先进功能,论证了高精度航摄质量的可靠性。本试验的成功为我国低空航摄领域填补了一项空白。     

地震映像法及其应用

简述了地震映像法的特点,并列举了在各种浅部不均体探测中的应用实例,指出了提高其应用效果,拓宽其应用领域应研究的问题。     

小比例尺数码航摄资料在城市规划中的应用

对利用小比例尺数码航摄资料进行控制,获取应用于城市规划设计前期1：1000地形图资料的方法进行探讨和实践,进行理论分析和实际应用结果分析,提出满足了我们规划用图的需要。这种方法可为今后一些局部地区急需用图,测绘作为借鉴。     

海岸带数字航空摄影质量控制与评价

随着机载POS系统和数字航空摄影技术应用于海岸带地形测量,水线曲折、水域面积广阔、滩涂陡缓不一、具有潮汐变化等多因素给海岸带航空摄影质量控制带来诸多问题。因此,为了得到优质的调查结果,需对获取的航空摄影资料进行质量评价。通过分析航空摄影作业过程及获取成果的类别,从中选取能够全面衡量航空摄影质量的指标元素,对这些元素加以预先控制以提高最终成果质量; 基于专家经验法和数学统计法对各指标元素赋予权重,提出了全要素直接参与的加权法对航空摄影数据质量进行评价; 归纳了在获取与处理过程中影响质量的各子元素间的相关性,可利用该特点在今后的作业中进行有针对性的改善或控制,达到提高成果精度的目的。对渤海海岸带航空摄影数据的评价结果显示,整体质量优秀,与实际的制图结果吻合,成果精度满足海岸带地质调查需求,质量控制和评价方法可行。     

湖南省北西向构造遥感地质特征初探

本文应用湖南最新TM卫星假彩色合成计算机镶嵌图像,首次全面系统地研究了湖南境域北西向地质构造类型、展布规律、遥感地质特征,并详细研究了北西向地壳断裂活动历史。     

德格—中甸微板块在三叠纪时期各沉积构造带的性质和沉积盆地演化

德格—中甸微板块是在晚二叠世初随甘孜—理塘洋的产生而从扬子板块西缘分离出来的。在三叠纪时期受金沙江缝合带与甘孜—理塘缝合带构造作用的相互影响,其沉积构造性质也由被动边缘盆地演化为活动边缘盆地,同时分裂为白玉—义敦前陆盆地,昌台—乡城岛弧带、玉隆—稻城弧前盆地。     

倾斜摄影测量技术在崩塌隐患调查评价中的应用

本次研究选取北京房山区一处典型崩塌隐患点,采用倾斜摄影测量技术获取了研究区三维实景模型,圈定了危岩体及受威胁对象,开展了崩塌隐患的稳定性分析,模拟了典型危岩体发生崩落后的运动轨迹。研究成果表明倾斜摄影技术能够获取崩塌灾害隐患的地形地貌、岩性构造、几何形态等特征信息,可以为崩塌灾害隐患的勘查、防治工作提供参考依据。     

Discontinuous deformation analysis of super section tunnel surrounding rock stability based on joint distribution simulation

Based on binocular stereo photography measurement technology, the actual distribution information of joints and fractures in the tunnel face were obtained via image processing and feature extraction, and the preliminary evaluation of surrounding rock stability of Laohushan tunnel was conducted according to surrounding rock classification method. Since all available surrounding rock classification approaches didn’t consider the influences of the size effect of tunnel excavation span and unfavorable geologic bodies such as weak-fracture zones, an improved discontinuous deformation analysis (DDARF) method was adopted to conduct a numerical simulation of the deformation and fracture processes of the surrounding rock. Using the traveling wave method, triangle DDA blocks were automatically generated in the calculation zone, and the block boundaries were divided into real joints and virtual joints. Based on the real joint information obtained via aforementioned photographic measurement, the real joints in the tunnel face were dynamically modified, in order to achieve the simulation of joint distribution. The results revealed that the fracture evolution regularity, deformation failure mechanism, and block dropping phenomenon that the DDARF joint simulation model calculated are in good agreement with actual conditions, while those obtained based on conventional models present differences from field situation. Additionally, focusing on the localised rockfall phenomenon of Laohushan tunnel, the crack extension rate was introduced to conduct a quantitative comparison of the rock crack evolution process with or without anchor supporting. The research results offer practical guidance for field construction and anchorage support scheme optimization.