- Title
- The influence of material cohesion on the loads exerted on support structures buried in stockpiles
- Creator
- He, Yanyan; Roberts, Alan W.; Prigge, Jan-Dirk
- Relation
- 11th International Conference on Bulk Materials Handling Storage, Handling and Transportation (ICBMH 2013). Proceedings of the 11th International Conference on Bulk Materials Handling Storage, Handling and Transportation (Newcastle, N.S.W. 2-4 July, 2013)
- Publisher
- University of Newcastle
- Resource Type
- conference paper
- Date
- 2013
- Description
- Experimental tests were undertaken using two different bulk materials to investigate the load conditions on support structures buried in stockpiles, such as trestle legs or columns to support load-out conveyors or roof structures of bulk solids storage sheds, respectively. These structures are widely used in large bulk storage facilities, and they are subject to significant loads exerted by the surrounding bulk solids. A theoretical approach for the analysis of these loads has been published by Roberts [1], and a correlated investigation using numerical simulation methods has been reported in Katterfeld and Roberts' study [2]. Results of both studies were in good agreement with the theoretical predictions. However, further experimental verification is needed, especially with regard to the influence of the flow properties on the stress states developed in the stored material surrounding the buried structures. Two different bulk materials, cohesive iron ore fines and free-flowing sand, were used in the experiments on a laboratory scale test rig. Tekscan tactile pressure sensors were employed on both the front face and rear face of the buried column, and pressure measurements were performed with the column located at two different positions: (I) the normal vector of the column front face is parallel to the flow direction; (II) the normal vector of the column front face is perpendicular to the flow direction. A series of stockpile tests were analysed, and the results further confirm those design equations, especially for the pressure on the rear face of the buried column.
- Subject
- support structures; buried; cohesive; Tekscan; pressures; stockpiles
- Identifier
- http://hdl.handle.net/1959.13/1341243
- Identifier
- uon:28692
- Identifier
- ISBN:9780858259836
- Language
- eng
- Full Text
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