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Study on the Nonlinear Dynamic Characteristic of Cone Penetrate Test Curve

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Study on the Nonlinear Dynamic Characteristic of Cone Penetr...

Quantitative analysis on soil erosion based on 3S technology

2.08 International Workshop on Chaos-Fractals Theories and Applications & the 9th International Conference for Young Computer Scientists

作者： Jiangdong Cai 1、2., Daoming Zhang 2. Zhenquan Jiang 2.(1 . Huaiyin Institute of technology, Huaian, 2.3001, China 2. China university of {2. and technology Xuzhou, 2.1008, China)

Soil on the surface of the earth is the remnants of weathered rock and strata with layer structure appear a time series feature. Static Cone Penetrate Test (CPT) is an exploration technology which can obtain the physical indices of strata accurately. Study shows that specific penetration resistances (Ps values) of soil vary with the buried depth of strata and the curves of Ps values have fractal characteristics. In this paper, we adopted nonlinear dynamic theory to analyze the chaos and multi-fractal properties of these curves. At the same time, we also discussed the Hurst exponents of CPT data sets. The results suggest that chaos characteristics of the test data are not clear, however the multi-fractal spectrum of each CPT curve can identify nonhomogeneity degree of soil, also it can distinguish the difference of sedimentary environments. Furthermore, rescaled range analysis indicates that the soil layers deposited later had long range dependence on those deposited early.

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来源： cnki会议评论

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中国有色金属学会会刊：英文版 2005年第S1期15卷 82-85页

作者： JING Hai-tao~1, XIE Hong-quan~(2. 3), FU Mei-chen~2. FENG Zhong-ke~4 (1. Xuzhou Normal university, Xuzhou 2.1009, China 2. China university of {2. and technology(Beijing Campus), Beijing 100083, China 3. Hebei Polytechnic university, Tangshan 063009, China 4. Beijing Forestry university, Beijing 100083, China Xuzhou Normal Univ Xuzhou 221009 Peoples R China China Univ Min & Technol Beijing 100083 Peoples R China Hebei Polytech Univ Tangshan 063009 Peoples R China Beijing Forestry Univ Beijing 100083 Peoples R China

The quantitative analysis on soil erosion is very significant for macro-decision of soil loss, for quick control of natural disasters and for system of periodical report. Based on the research of 3S(GPS, GIS and RS), the special information can be obtained by GPS or RS. Digital elevation model can be formed by GIS software, and at the same time, we can get some vector graph, such as landuse, vegetation type and soil type. Then the soil erosion of research area was calculated by USLE. The methods and techniques were discussed, including how to carve up polygons, how to capture the values of factors and how to differentiate the erosion intensity.

关键词： soil erosion USLE GPS GIS RS

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我国油气资源评价现状与存在问题

新疆石油地质 2004年第5期25卷 554-556页

作者：周总瑛唐跃刚中国石油化工股份有限公司石油勘探开发科学研究院中国矿业大学北京100083 中国矿业大学

简要介绍了我国历次油气资源评价概况及特点,指出了我国油气资源评价与国际惯例相比,在评价方法、评价结果、资源量的构成和资源量的时效性四个方面上存在的差异。为了更加客观评价我国油气资源潜力,建议以新一轮全国油气资源评价工作... 详细信息

简要介绍了我国历次油气资源评价概况及特点,指出了我国油气资源评价与国际惯例相比,在评价方法、评价结果、资源量的构成和资源量的时效性四个方面上存在的差异。为了更加客观评价我国油气资源潜力,建议以新一轮全国油气资源评价工作为契机,加强统计法、地质类比法及油气资源经济性评价等薄弱环节的研究,进一步完善我国油气资源评价方法,建立一套既能符合我国油气地质特点、又能与国际接轨的油气资源评价方法体系。

关键词：油气资源评价资源量构成时效性资源潜力

Subsidence control and farmland conservation by solid backfilling mining technology

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中国有色金属学会会刊：英文版 2011年第S3期21卷 665-669页

作者： GUO Guang-li1, 2. FENG Wen-kai3, ZHA Jian-feng1, 2. 3, LIU Yuan-xu1, 2. WANG Qiang1, 2.1. Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping, China university of mining and {2., Xuzhou 2.1116, China 2. Jiangsu Key Laboratory of Resources and Environmental Information Engineering, China university of mining and {2., Xuzhou 2.1116, China 3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu university of {2., Chengdu 610059, China [a] Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping China University of Mining and Technology Xuzhou 221116 China [b] Jiangsu Key Laboratory of Resources and Environmental Information Engineering China University of Mining and Technology Xuzhou 221116 China [c] State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China

Solid backfilling mining technology, which decreases the height of fissure zone and caving zone, and alleviates the subsidence, is a new technology for farmland conservation. Based on the situation analysis of farmland destruction in mining area, three ways for farmland protection were proposed. In order to improve the feasibility of this technology, the limited filling materials should be used to increase resources recovery ratio, and then the surplus materials could be backfilled into goaf. An index, namely farmland conservation ability, was put forward to optimize the ways for farmland conservation. At last, the Wanbei coal mine was taken as a case for farmland conservation. It was shown that 32.0 t dull coal was substituted and 52.hm2.farmland was conserved by solid backfilling mining in this coal mine.

关键词： solid backfilling farmland conservation mining subsidence equivalent mining height

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异步电动机交/交变频调速系统的建模与仿真

微特电机 2002年第5期30卷 10-12页

作者：周渊深姜建国淮海工学院江苏连云港222001 中国矿业大学江苏徐州221008

利用MATLAB/Simulink和Power System工具箱进行异步电动机交/交变频调速系统的建模,介绍了无环流逻辑切换装置、三相交/交变频器的建模,并分别给出了仿真实验结果。

关键词：异步电动机交/交变频调速系统建模仿真

巴楚寒武—奥陶系碳酸盐岩微量元素及沉积环境

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新疆石油地质 2004年第6期25卷 631-633页

作者：何宏彭苏萍邵龙义中石化石油勘探开发科学研究院北京100083 中国矿业大学北京100083

研究了塔里木盆地巴楚地区寒武-奥陶系海相碳酸盐岩的微量元素特征,探讨了微量元素的富集机制。分析表明,微量元素的富集与原始沉积环境有着极为密切的关系押微量元素K、Na、Al、Fe等含量在开阔台地和台地边缘浅滩均较低,而在台地斜坡... 详细信息

研究了塔里木盆地巴楚地区寒武-奥陶系海相碳酸盐岩的微量元素特征,探讨了微量元素的富集机制。分析表明,微量元素的富集与原始沉积环境有着极为密切的关系押微量元素K、Na、Al、Fe等含量在开阔台地和台地边缘浅滩均较低,而在台地斜坡带较高;Mn、Cr、Ni、V等元素的含量从浅水到深水总体呈增加之势,因此可以指示古水深的变化。常量元素w(Ca)/w(Mg)比值在以白云岩为主的蒸发台地、局限台地相中最低,在潮下开阔台地、台地边缘浅滩沉积中则由于白云岩不发育而比较高。开阔台地相w(Sr)/w(Ba)比值较高,而局限台地相、蒸发台地相则相对较低。碳酸盐岩的微量元素结合常量元素分析可以作为沉积环境判别的有效的标志。

关键词：台地沉积环境碳酸盐岩奥陶系巴楚富集机制古水深白云岩塔里木盆地斜坡带

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沙坝沟滑坡成因分析与稳定性评价

土工基础 2008年第6期22卷 29-32页

作者：陈书生易武三峡大学三峡库区地质灾害教育部重点实验室中国矿业大学北京校区

分析了滑坡体的物质组成、结构特征及复合滑动的变形特征,认为滑坡的坡体特性、坡体前缘局部崩塌、水体入渗为滑坡的形成提供了条件;持续降雨、河流长期冲刷、人类工程活动是影响滑坡稳定性的主要因素。据岩土物理力学试验及不同工况下... 详细信息

分析了滑坡体的物质组成、结构特征及复合滑动的变形特征,认为滑坡的坡体特性、坡体前缘局部崩塌、水体入渗为滑坡的形成提供了条件;持续降雨、河流长期冲刷、人类工程活动是影响滑坡稳定性的主要因素。据岩土物理力学试验及不同工况下稳定性计算结果,对滑坡进行稳定性评价。结果表明在一定条件下,滑坡体存在潜在的不稳定滑面,应采取必要的防治措施。

关键词：滑坡成因机制稳定性评价

基于Multigen/Vega的校园VR仿真系统的实现——以中国矿业大学为例

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系统仿真学报 2004年第9期16卷 1995-1998页

作者：宋金玲肖寒盛业华王锦地北京师范大学地理学与遥感科学学院遥感与地理信息系统研究中心遥感科学国家重点实验室环境遥感与数字城市北京市重点实验室北京100875 中国矿业大学环测学院徐州221008 南京师范大学地理科学学院南京210097

虚拟现实技术对于城市规划和城市的可持续发展有着非常重要的意义,它的长足进步,为真实景观的再现提供了有效手段。本论文在已有的二维地理信息系统数据的基础上进行校园数据的获取与组织,利用虚拟现实技术实现校园全景的三维重建,采用... 详细信息

虚拟现实技术对于城市规划和城市的可持续发展有着非常重要的意义,它的长足进步,为真实景观的再现提供了有效手段。本论文在已有的二维地理信息系统数据的基础上进行校园数据的获取与组织,利用虚拟现实技术实现校园全景的三维重建,采用层次型与面向对象相结合的三维数据结构,构造了校园全景的仿真模型,并实现了校园全景的驱动显示,为校园规划和可持续发展更可靠的保证。

关键词：虚拟现实 Multigen Vega 仿真

A new method for mining deformation monitoring with GPS-RTK

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中国有色金属学会会刊：英文版 2011年第S3期21卷 659-664页

作者： GAO Jing-xiang1, 2. LIU Chao2. WANG Jian1, 2. LI Zeng-ke2. MENG Xiang-chao2.1. Key Laboratory for Land Environment and Disaster Monitoring of State Bureau of Surveying and Mapping, China university of mining and {2., Xuzhou 2.1116, China 2. School of Environment and Spatial Informatics, China university of mining and {2., Xuzhou 2.1116, China [a] Key Laboratory for Land Environment and Disaster Monitoring of State Bureau of Surveying and Mapping China University of Mining and Technology Xuzhou 221116 China [b] School of Environment and Spatial Informatics China University of Mining and Technology Xuzhou 221116 China

Based on ranging intersection theory, a new method which is simple and easy to operate was proposed for data collection in the mine surface deformation monitoring with GPS-RTK centering rod measurements. It can fully eliminate the inevitable shaking error and the vertical deflection, and to some extent weaken the multipath effect on the estimates of coordinates in a relatively short period of time, using high-frequency observations. The results show that three-dimensional coordinates with a height accuracy better than 1 cm, horizontal accuracy better than 2.4 cm can be achieved through only 15-30 s continuous observation by 2. Hz high-frequency and effectively improve the measurement accuracy and efficiency of RTK, fully satisfying the high-speed and high-precision data acquisition in mine surface subsidence deformation monitoring.

关键词： GPS rover pole multipath delay deformation monitoring