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| GIS for Highway Engineering Bearing Capacity Evaluation |
| LIU Yi-lin1,2, XU Kai-hua3 |
1. Research Institute of Highway, Ministry of Transport, Beijing 100088, China;
2. Key Laboratory of Road Construction & Material, Ministry of Transport, Beijing 100088, China;
3. Highway Monitoring & Response Center, Ministry of Transport, Beijing 100088, China |
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Abstract The bearing capacity of soils under highway engineering differs from that of soils under the building foundation as a result of different superstructure types and foundation forms. Determining the characteristic value of highway bearing capacity by directly adopting the evaluation method from building codes is conceptually indefensible because such codes do not represent the real bearing capacity of highway foundations. By analyzing the superstructure types and foundation forms of highway subgrade, bridge, culvert, and building, the evaluation methods of highway foundation, bridge, and culvert are determined. Furthermore, a three-level classification system of highway foundations is presented and a highway engineering bearing capacity evaluation system based on Geographical Information Systems (GIS) is established. By using the spatial data management and spatial data analysis platform of GIS and by combining the plate-loading testing data and engineering properties of different soils, the system accomplishes the effective evaluation of the bearing capacity beneath the highway subgrade, bridge, and culvert, and provides a theoretical basis and practical reference for the evaluation of the bearing capacity and the choice of ground improvement in engineering design and construction.
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Received: 21 August 2013
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| Fund:Supported by the Road and Transport R&D Project for Western Regions of China Commissioned by Ministry of Transport(No.200431822311) |
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Corresponding Authors:
LIU Yi-lin, yl.liu@rioh.cn
E-mail: yl.liu@rioh.cn
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[7] LIU Bao-jian,XIE Yong-li,CHENG Hai-tao,et al. Design of Soil Foundation System of Culvert under High Embankment[J]. Journal of Chan'an University:Natural Science Edition, 2006, 26(3):17-20. (in Chinese)
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[11] JTG E40-2007, Test Methods of Soils for Highway Engineering[S]. (in Chinese) |
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2014, Vol. 8 
