共查询到20条相似文献，搜索用时 240 毫秒
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厂区烟囱倾斜变形测量 总被引：1，自引：0，他引：1
结合兰州生物制药厂厂区烟囱倾斜变形测量的实例，阐述了对于塔式建筑物(如高层建筑、水塔、烟囱等)倾斜变形测量的观测方法、数据处理方法，得出了一些有益的结论。 相似文献
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因化工企业设备众多,结构复杂,危险性大,必须对其进行沉降及变形监测.本文阐述了兖矿国泰化工有限公司厂区沉降观测的过程,分析了其数据精度,得出了各建(构)筑物的沉降情况,对设备的安全运营具有重要的参考价值.本文针对传统的沉降观测提出了一些新方法,对提高观测精度、降低作业成本具有一定的实用价值;化工企业的沉降监测属于较新的课题,其结论具有较为普遍的意义. 相似文献
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基于全球领先的三维空间地理信息可视化软件(Skyline软件)、建模工具(3Ds Max)以及关系数据库管理系统(Oracle10g),提出一个大型厂区三维地理信息系统的建设方案。论述了系统的建设概况、生产流程、数据的组织与发布机制以及系统的功能,实现了厂区管理的自动化与信息化,从而促进了厂区管理与决策的质量、效率和水平的进一步提高。 相似文献
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本研究以某化学制药厂为例,通过对整个厂区进行三维建模,以及建立厂区路网数据,建立起空间数据的拓扑关系,实现厂区各位置之间的路经计算分析,从而便于生成应急疏散路径。运用三维虚拟现实引擎进行可视化,并进行模拟逃生。本研究通过建立模拟系统,对"平时"的应急演练以及"战时"的应急救援起到了决策支持作用,为决策者制订救援方案提供了科学依据。 相似文献
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介绍了空间数据三维可视化基本原理及运用IMAGIS进行三维可视化设计与开发的过程。同时,以鞍钢厂区为例,在其基础地理数据库的基础上,应用VB和IMAGIS进行二次开发,实现厂区景观的三维可视化。 相似文献
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以上汽通用五菱公司厂区总平图测绘为例,简述在大比例尺数字化工业厂区总平图测绘的实践中,质量控制的基本方法和检查内容,强调建立以生产单位的过程控制的质量控制体系,以保证测绘成果的质量。 相似文献
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国家核电正处于新的发展时期,核电站厂址普选正在全国范围内展开。本文针对目前核电站厂址普选过程中所采用方式方法,探讨了一种利用高分辨率遥感影像进行核电站厂址普选的方法,并简要分析了这种方法的可行性及优点。 相似文献
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Yongsheng Li Jingfa Zhang Zhenhong Li Yi Luo Wenliang Jiang Yunfeng Tian 《International Journal of Digital Earth》2016,9(7):697-709
Yangbajain contains the largest geothermal energy power station in China. Geothermal explorations in Yangbajain first started in 1976, and two plants were subsequently built in 1981 and 1986. A large amount of geothermal fluids have been extracted since then, leading to considerable surface subsidence around the geothermal fields. In this paper, InSAR time series analysis is applied to map the subsidence of the Yangbajain geothermal fields during the period from December 2011 to November 2012 using 16 senses of TerraSAR-X stripmap SAR images. In the case of the TerraSAR-X data, most orbital fringes were removed using precise orbits during the interferometric processing. However, residual orbital ramps remain in some interferograms due to the uncertainties in the TerraSAR-X orbits. To remove the residual orbital ramps, we estimated a best-fit ‘twisted plane’ for each epoch interferogram using quadratic polynomial models based on a network approach. This method removes most of the long-wavelength signals, including orbit ramps and atmospheric effects. The vertically strati?ed component (Topography Correlated Atmospheric Delay, TCAD) was also removed using a network approach. If the influence of seasonal frozen ground (SFG) is not taken into consideration, our results show that the subsidence rate around power plant I (the south plant) is approximately 20?mm/yr with a peak of 30?mm/yr. The subsidence rate around power plant II (the north plant) is approximately 10?mm/yr, when accounting for the influence of SFG on the power plant and its surrounding ground surface. Our results show that ground motion is caused by seasonal frozen ground and is strongly related to the temperature change. 相似文献
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赵成铭 《测绘与空间地理信息》2012,35(9):95-96,99
全球定位系统（GPS）以其精度高、速度快等优点,成为当今最先进的变形监测方法。本文以湖南华润鲤鱼江电厂为例介绍了GPS在电厂变形监测中的应用。 相似文献
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Wenmei Li Erxue Chen Zengyuan Li Wangfei Zhang Chang Jiang 《Journal of the Indian Society of Remote Sensing》2016,44(1):41-48
Tomo-SAR technique has been used for hemi-boreal forest height and further forest biomass estimation through allometric equation. Backscattering coefficient especially in longer wavelength (L- or P-band) is thought as a useful parameter for hemi-boreal forest biomass retrieval. The aim of this paper is to assess the performance of vertical backscattering power and backscattering coefficient for hemi-boreal forest aboveground biomass (AGB) estimation with airborne P-band data. The test site locates in southern Sweden called Remningstorp test site, and the in-situ forest AGB ranges from 14 t/ha to 245 t/ha at stand level. Multi-baseline P-band Pol-InSAR data in repeat-path mode collected during March and May in 2007 at Remningstorp test site was used. We found that the correlation coefficient (R) between backscattering coefficient of P-band HH polarization and the in-situ forest biomass reached 0.87. The R for P-band VV backscattering power at 5 m is 0.71 and 10 m is 0.72. Backscattering coefficient in HH polarization and vertical backscattering power at 5 m and 10 m were applied to construct a model for hemi-boreal forest AGB estimation by backward step-wise regression and cross-validation approach. The results showed that the estimated forest AGB ranges from 19 to 240 t/ha, and the constructed model obtained a higher R and smaller RMSE, the value of R is 0.91, RMSE is 30.43 t/ha at Remningstorp test site. 相似文献
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本文通过已知含油区及背景区地植物及地表土壤多种微量金属元素和吸附烃的综合分析,并利用遥感资料与物探资料作复合评价,讨论了冀东油气微渗漏地区的遥感植物地球化学标志。 相似文献
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结合核电厂工程特点,介绍GPS技术在咸宁核电厂首级平面控制网设计和施测的应用,重点对GPS测量布网设计、数据观测进行阐述,分析实施环节中需关注的问题和相关技术要求,最后对GPS首级平面控制网的观测质量、成果精度进行了评价总结。 相似文献