A Conveyor-Based Earthmoving Machine for Deep, Top-Down Excavations
Journal: Journal of Building Technology DOI: 10.32629/jbt.v6i1.1636
Abstract
This paper reports the development and testing of an innovative type of earthmoving machine. The track-type belt conveyor (TTBC) can remove soil horizontally from deep excavations. The TTBC is more flexible than traditional conveyors used in factories, because it is self-moving (via two tracks) and foldable. Moreover, several TTBCs can work together to transport a continuous stream of soil over long horizontal distances, which can significantly improve earthmoving efficiency. Field tests were performed to assess the practical feasibility of single and multiple TTBCs. They were used in a long, narrow, deep excavation below a railway station. The site was constructed using a top-down method with a single soil exit at one end. The tests showed that the new TTBC is flexible and efficient for removing non-cohesive soils from deep excavation sites.
Keywords
track-type belt conveyor; foldable structure system; collaboration; earthmoving equipment; deep excavation
Funding
The financial support from the National Natural Science Foundation of China (NSFC Grant No. 41977216) is gratefully acknowledged.
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[2] Kim SK, Seo J, Russell JS. 2012. Intelligent navigation strategies for an automated earthwork system. Automation in Construction, 21: 132-147.
[3] Li MG, Zhang ZJ, Chen JJ, et al. 2017. Zoned and staged construction of an underground complex in Shanghai soft clay. Tunnelling and Underground Space Technology, 67: 187-200.
[4] Tan Y, Huang R, Kang Z, et al. 2016. Covered semi-top-down excavation of subway station surrounded by closely spaced buildings in downtown Shanghai: building response. Journal of Performance of Constructed Facilities, 30(6): 04016040.
[5] Tatum C, Vorster M, Klingler M. 2006. Innovations in earthmoving equipment: new forms and their evolution. Journal of Construction Engineering and Management, 132(9): 987-997.
[6] Tatum C, Vorster M, Klingler MG, et al. 2006. Systems analysis of technical advancement in earthmoving equipment. Journal of Construction Engineering and Management, 132(9): 976-986.
[7] Li MG, Chen JJ, Xu AJ, et al. 2014. Case study of innovative top-down construction method with channel-type excavation. Journal of Construction Engineering and Management, 140(5): 05014003.
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