Xiaobin Ding
Ph.D., PE, Associate Professor
Contact
Address: 381 Wushan Rd, Tianhe District, Guangzhou, China, 510640
Tel.:
E-mail: dingxb@scut.edu.cn
Fields of Postgraduate Admissions
Geotechnical Engineering
Research Fields
Rock Mechanics, Fracture mechanics, Discrete element model，Digital underground space and engineering
Teaching Courses
Soil Mechanics, Rock Mechanics, Foundation Engineering, Underground Construction, Underground Structure,
Education Background
2006 July, B.S. at Tongji University, CN
2009 March, M.S. at Tongji University, CN
2013 May, Ph.D. in Civil Engineering at the University of Arizona, US
2013 May ~ 2014 July，Postdoctoral Research Associate at the University of Arizona
Work Experience
2013 May ~ 2014 July，Postdoctoral Research Associate at the University of Arizona
2014 July ~ 2015 Nov.，Senior Staff Engineer/Project Manager at Ninyo & Moore Geotechnical and Environmental Engineering Consulting Firm
2015 Dec. ~ now. Department of Civil Engineering and Transportation, South China University of Technology
Honors and Awards
Registered Professional Engineer (PE) in Arizona, US.
Research Achievements/Selected Publications
Research focus: Rock Mechanics, Fracture mechanics, Discrete element model, Particle flow code, Rock Expert System, Digital underground space and engineering, Geological information system, Geological metadata model, Three dimensional geological modeling.
1.Three-dimensional (3D) Discrete Element Contact Model Study
The Discrete Element Model (DEM) has been increasingly used to simulate and analyze the mechanical behavior of rocks. However, traditional DEM using symmetric particles bear the intrinsic limitation of severely overestimating the tensile strength of simulated rock and leading to unrealistically low unconfined compressive strength to tensile strength (UCS/T) ratio. This further limit the capability of DEM to successfully simulate the micro-scope failure mechanism of rock.
2.Three-Dimensional (3D) Multi-Scale Characterization of Rock Fractures
Researchers have used the Bonded Particle Model to simulate the cracking process of rocks; but these simulations are mainly two-dimensional although the cracking process is three dimensional.
3.Development of Rock Expert System (RES) for Evaluation of Rock Properties
Typical values and empirical correlations are often used to evaluate the rock property values. However, the typical values and empirical correlations come in various forms and are scattered in different sources. It is often difficult, time-consuming or even impossible for an engineer to find appropriate information to estimate the required rock properties.
4.The Mine Information System Based on 3D Coal Seam Modeling and 3D Laneway Design System
The three dimensional mine information system helps engineer to maximize the excavation efficiency. However the traditional underground laneway design is based on two dimensional blueprint. Based on the ObjectARX technique, one of the widely applied AutoCAD secondary development kit, this author proposed the process to contrive 3D digital design and optimization of roadway. With the well-designed laneway database, interactive GUI and the application of spatial analysis from GIS, this system can expediently manage the roadway data, rapidly build 3D laneway by several key parameters, also enhances the application of 3D model in mine exploitation. In this way, this system solves the traditional questions in the application of 3D roadway model, such as rapid modeling, practical engineering, analysis and optimization.
5.Study on High-level Waste Geological Disposal Metadata Model
Under the current multisource data integration and data exchange techniques, the requirement of data security and ownership, it is unrealistic to build a single integrated GIS database to manage all data in the High level waste geological disposal project. Considering the important role the metadata played in the data category, inquiry and exchange, storage management, the author studied the high-level nuclear waste geological disposal (HNWGD) project metadata and its content and organization, then built a metadata based Web GIS data exchange and sharing system.
Selected research papers:
1.Chen, R., Ding, X., Ramey, D., Lee, I., Zhang, L.. (2015). "Experimental and numerical investigation into surface strength of mine tailings after biopolymer stabilization." Acta Geotechnica: 1-11. DOI:10.1007/s11440-015-0420-x. (SCI, EI)
2.Ding, X., and Zhang, L. (2014). "A new contact model to improve the simulated ratio of unconfined compressive strength to tensile strength in bonded particle models", International Journal of Rock Mechanics and Mining Sciences 69(0):111-119. (SCI，EI)
3.Ding, X., Zhang, L., Zhu, H., and Zhang, Q. (2013). "Effect of model scale and particle size distribution on PFC3D simulation results", Rock Mechanics and Rock Engineering: 1-18. (SCI, EI)
4.Zhang, L., Ding, X., and Budhu, M. (2012). "A rock expert system for the evaluation of rock properties." International Journal of Rock Mechanics and Mining Sciences, 50, 124-132. (SCI，EI)
5.Zhang, L. and Ding, X. (2010). "Variance of non-parametric rock fracture mean trace length estimator." International Journal of Rock Mechanics and Mining Sciences 47(7): 1222-1228. (SCI，EI)
6.Zhang, Q., Zhu, H., Zhang, L. and Ding, X. (2011). "Study of scale effect on intact rock strength using particle flow modeling." International Journal of Rock Mechanics and Mining Sciences 48(8): 1320-1328. (SCI，EI)
7.Ding, X., and Zhang, L. (2014). "A new contact model for DEM analysis of rock." 48th U.S. Rock Mechanics / Geomechanics Symposium, American Rock Mechanics Association, June 1 - 4, 2014, Minneapolis, MN. (EI)
8.Ding, X., and Zhang, L. (2012). "Effect of model scale on mechanical properties of rocks based on PFC3D modeling." 46th U.S. Rock Mechanics / Geomechanics Symposium, American Rock Mechanics Association, June 24 - 27, 2012, Chicago, IL. (EI)
9.Ding, X., and Zhang, L. (2011). "Simulation of Rock Fracturing Using Particle Flow Modeling: Phase I - Model Development and Calibration." 45th U.S. Rock Mechanics / Geomechanics Symposium, American Rock Mechanics Association, June 26 - 29, 2011, San Francisco, California. (EI)
10.Zhang, Q., Zhu, H., Zhang, L. and Ding, X. (2012). "Effect of Micro-parameters On the Hoek-Brown Strength Parameter Mi for Intact Rock Using Particle Flow Modeling." 46th U.S. Rock Mechanics/Geomechanics Symposium. 24-27 June, Chicago, Illinois, American Rock Mechanics Association. (EI)
