Shandong Provincial Institute of Land Surveying and Mapping

Jinan, China

Shandong Provincial Institute of Land Surveying and Mapping

Jinan, China

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Li J.,China University of Geosciences | Yuan G.-L.,China University of Geosciences | Deng X.-R.,Shandong Provincial Institute of Land Surveying and Mapping | Jing X.-M.,China University of Geosciences | And 3 more authors.
Environmental Earth Sciences | Year: 2016

To explore the chemical weathering processes and the anthropogenic disturbance of weathering, 20 water samples were collected from the tributaries in the Nansihu Lake basin, a growing industrial area. The major ions in river waters were analyzed to identify and quantify the contributions of the different reservoirs. Based on stoichiometric analyses and end-member determination, the contributions of individual reservoirs were calculated for each tributary. In the study region, the averaged contributions of atmospheric inputs, anthropogenic inputs, evaporite weathering, carbonate weathering and silicate weathering were 2, 37, 28, 25 and 8 %, respectively. Combined with information regarding runoff and drainage area, the annual average contribution of TDS to waters was estimated to be 1.90 ± 0.95 ton/km2 from silicate weathering, 5.68 ± 2.84 ton/km2 from carbonate weathering. Furthermore, the associated consumption of CO2 was calculated to be approximately 7.50 × 109 mol/a. The industrial and mining activities were the main sources for anthropogenic inputs, and they produced non-CO2 acids (NCA). Of all protons involved in chemical weathering, 34 % was presumed to be originated from NCA, causing 2.74 × 109 mol/a of CO2 degassing. Moreover, industrial inputs could play a major role in the modification of the chemicals in the water system, and they could even change the carbonate weathering rate in such an intensively industrializing region. In North China, the chemical weathering associated with NCA was found to be significant for the first time. © 2016, Springer-Verlag Berlin Heidelberg.


Xu Y.,Fujian Agriculture and forestry University | Liu H.,Wuhan University | Zhang Y.,Surveying and Mapping Engineering in Shanxi Province | Feng Y.,Shandong Provincial Institute of Land Surveying and Mapping
Lecture Notes in Electrical Engineering | Year: 2012

The observations of Tianjin Continuously Operating Reference System (TJCORS) of 2007-2009 are calculated by BERNESE 5.0 Software. Then the position site time series from all of the reference stations are obtained, which are analyzed from aspects of periodicity, noise and tendency to figure out the time series' features and the movement tendency of TJCORS. The periodicity analysis shows that the 3 coordinate components (N, E, U) have semi-annual and annual periodicity, and the periodicity of U direction is more obvious than that of the other two. The model of "white noise + flicker noise" is preferred to describe the reference station noise series according to the noise analysis. Then the movement of TJCORS is discussed. TJCORS has a movement tendency towards southeast horizontally. The vertical displacement velocity of the 12 stations is from -0.05 to -41.29 mm/a. In the end, the results of TJCORS and the leveling are compared to prove that the former results are of accuracy. The comparison shows that the vertical displacements gained by the two methods are identical. © 2012 Springer-Verlag GmbH.


Ye Z.,Shandong Provincial Institute of Land Surveying and Mapping | Xiang H.,Shandong Provincial Institute of Land Surveying and Mapping
International Conference on Geoinformatics | Year: 2016

Educational equity is the main principle of the basic educational balancing development, while the quantitative analysis of the educational equity indices has been a difficult issue in education theory and policy problem. The paper examines the spatial pattern of basic educational equity in Shandong province by exploratory spatial data analysis (ESDA), specifically including spatial autocorrelation, geographically weighted regression and spatial clustering. Our preliminary studies help reveal the key factors contributing to the basic education and explicitly explain the relationship between education attainment and other socio-economy factors. Furthermore, based on ESDA methods, the paper explores the basic education resources disparities of county level in Shandong province. The basic education spatial distribution study provides rational implications for public policy and education planning practice in Shandong province. © 2015 IEEE.


Ye Z.,Shandong Provincial Institute of Land Surveying and Mapping | Xiang H.,Shandong Provincial Institute of Land Surveying and Mapping
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives | Year: 2014

The paper discusses the basic principles and the problem solutions during the design and implementation of the mobile GIS system, and base on the research result, we developed the General Provincial Situation Visualization System Based on iOS of Shandong Province. The system is developed in the Objective-C programming language, and use the ArcGIS Runtime SDK for IOS as the development tool to call the 'World-map Shandong' services to implement the development of the General Provincial Situation Visualization System Based on iOS devices. The system is currently available for download in the Appstore and is chosen as the typical application case of ESRI China ArcGIS API for iOS.


Wang D.,Shandong Jiaotong University | Fang X.,Hubei University | Huang J.,ShanDong Provincial Institute of Land Surveying and Mapping | Xing Z.,Land and Resources Bureau of Shandong Feexian
Applied Mechanics and Materials | Year: 2012

Qingzhou-Linshu super highway, spanning 228.333km, is located in the center of Shandong province, which forms a south-to-north expressway channel. Undoubtedly, it's an important part of Shandong highway network. Approximately, it runs from south to north and one projection zone is enough to satisfy relevant requests of horizontal coordinate system; From Qingzhou to Mazhan Town, Yishui County, most are hilly and mountainous terrain while from Mazhan Town, Yishui County to Linshu County, most are plain terrain, except for a few rolling terrain. As a result, fourth-order leveling control network is enough to meet the requirements of reconnaissance survey, design and constructive lofting. As the expressway and Ji-Qing south line carry out reconnaissance and design simultaneously and form an interchange at Mazhan Town, Yishui County, plus tight time and intense work, the systemic conformance of horizontal coordinate system and vertical datum are in high demand. The report analyses and discusses the adoption of horizontal and vertical network's starting points, layout, observation, data processing and adjustment, together with eliminating the coordinate division and elevation value's step of the same control point. In the meantime, it analyses how to make rapid aerial photogrammetry for the whole line with the scale of 1/2000, so as to improve the precision and reliability of horizontal and vertical datum as well as speed up the process of charting and utmostly satisfy the demand of highway reconnaissance and design. © (2012) Trans Tech Publications, Switzerland.


Zhu W.-S.,Shandong University | Chen Y.-J.,Shandong University | Li S.-C.,Shandong University | Yin F.-Q.,Shandong Provincial Institute of Land Surveying and Mapping | And 2 more authors.
Tunnelling and Underground Space Technology | Year: 2014

DDARF (Discontinuous Deformation Analysis for Rock Failure) is an improved method of DDA (Discontinuous Deformation Analysis method), while there are only uniform grids in the original DDARF, and multi-scale grid meshing method cannot be realized. A multi-scale grid meshing method for DDARF is proposed to rock failure analysis, which balances off between the calculation accuracy and computation time. Simulations with multi-scale grid model and uniform grid model are established respectively, and compared with the laboratory tests; this multi-scale grid meshing method is applied to progressive failure process for jointed surrounding rock, and influence on crack propagation by the different lateral pressure coefficients K0 of in situ stress is analyzed. It is concluded that this multi-scale grid meshing method for DDARF is feasible and the calculation accuracy can be improved with the same grid number. The proposed method is able to increase the computation efficiency by reducing the computation time when simulating underground cavern excavations, at the same time maintain the calculation accuracy. With increase of the lateral pressure coefficient K0 of in situ stress, the main cracks propagating zones are moved gradually from both sidewalls of the cavern to the arch crown and floor. This method improves the DDARF to large projects, and it can analyze the progressive failure process of rock more effectively. © 2014 Elsevier Ltd.


Wang D.,Shandong Jiaotong University | Fang X.,Hubei University | Xing Z.,Land and Resources Bureau of Shandong Feexian | Huang J.,ShanDong Provincial Institute of Land Surveying and Mapping
Applied Mechanics and Materials | Year: 2012

As to Jiaonan geodetic datum, third-order horizontal control network is established through GPS while third-order leveling network is established through electronic level. This paper illustrates how to process data so as to improve horizontal and vertical precision in the process of establishing third-order horizontal control network and elevation fitting. It puts forward such an opinion: making precision test for starting points of horizontal network and preserving those short baselines of low precision in unconstraint three-dimensional adjustment; As to elevation fitting, we advocates employing a variety of fitting scheme make precision inspection for those known GPS leveling points as well as those unknown points' fitting level. Then the most probable level is just what we get. Afterwards, we calculate those unknown points' root mean square error of fitting height, plus the minimum and maximum difference between fitting height and the most probable height. Taking all the results of precision inspection into consideration, we can find out the best fitting scheme, which improves the systematic precision and reliability of geodetic datum. © (2012) Trans Tech Publications, Switzerland.


Li S.-C.,Shandong University | Chen Y.-J.,Shandong University | Zhu W.-S.,Shandong University | Zhao C.-L.,Shandong University | And 2 more authors.
Yantu Lixue/Rock and Soil Mechanics | Year: 2014

DDARF (discontinuous deformation analysis for rock failure) has successfully realized the simulation on crack initiation, propagation, penetration and crushing of rock mass; but this algorithm only considers the linear elastic constitutive model and doesn't analyze the nonlinear stress-strain relationship of rock mass. For more accordding to the real rock engineering, and expanding the application scope of DDARF's nonlinear constitutive model, Mohr-Coulomb strength criterion and the maximum tensile stress strength criterion are respectively used to judge shear and tensile damage for rock mass; the algorithm of ideal elastic brittle constitutive model is analyzed, and is programmed based on VC ++ platform. Custom DDARF elastic brittle constitutive model for rock mass is comparatively analyzed with the laboratory uniaxial compression test; DDARF elastic brittle constitutive model is applied to large underground cavern excavation, and compared with the linear elastic constitutive model. Results show that, custom elastic brittle constitutive model for rock mass of DDARF is feasible; this elastic brittle constitutive model can reflect the nonlinear deformation characteristics of rock mass, and coincides with the laboratory experiment well. DDARF elastic brittle constitutive model is applied to large underground engineering, the stability of the surrounding rock mass can be more safely and truly analyzed, and the protective measures of underground caverns can be well guided.


Zhao J.,Shandong Provincial Institute of Land Surveying and Mapping | Gao S.,Shandong Provincial Institute of Land Surveying and Mapping | Sui H.,Wuhan University | Li Y.,Shandong Provincial Institute of Land Surveying and Mapping | Li L.,Chinese Academy of Forestry
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives | Year: 2014

In this paper, a novel registration method is proposed by integrating the graph spectral theory and line features. The principal steps of our algorithm are as follows. Firstly, the images are filtered to enhance the reliability and robustness of registration, and line features are acquired by Hough Transform. Secondly, the original point features can be obtained by calculating the line intersections. The points are normalized to reduce computational complexity. Thirdly, voronoi diagrams of two point sets are extracted respectively. The original corresponding point sets are determined by corresponding voronoi diagrams, which can be obtained by Graph Spectral Theory. At last, RANSAC is used to remove the wrong corresponding points. The transform relationship of the two input images can be achieved using the corresponding point sets. The experimental results show that the proposed method can achieve high accuracy for the registration between optical and SAR images.


Dong L.,Wuhan University | Shu H.,Wuhan University | Niu X.,Shandong Provincial Institute of Land Surveying and Mapping
Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | Year: 2013

A spatial association rule mining method is proposed in this study, including support counting method based on overlay analysis and area calculation, and corresponding mining algorithms. Using this method, the extraction of spatial transactions is not needed, and association rules can be mined out directly from layers of polygon features. Besides, the results are easy to be visualized with the help of GIS. An experiment with real-world data shows that this method is valid and efficient, and the result can be further analyzed with screening and visualization methods.

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