Abstract
Concrete-filled steel tubular (CFST) support has been gradually applied in the underground projects. According to the loading characteristics of underground projects supporting, the mechanical properties of CFST supports in roadway was analyzed by using theoretical analysis, laboratory tests and numerical simulations. The ultimate bearing capacity (UBC) of φ140×4.5mm CFST short column with the concrete strength of 26.8MPa was 1115.5kN by using the (UBC) formula deduced from the limit equilibrium theory, which was greater than the sum of that of the empty steel stub short column and that of the plain concrete short column. In the mechanical test of CFST support, the ultimate bearing capacity of the supports were 1.35 times larger than those of CFST short column because of the limitation of loading restrictive condition and the influence of the pole instability and eccentric compression on the whole CFST support. In the ABAQUS numerical simulation, the CFST support with the conditions of lateral confining loading constraint and horizontal restraint, the values of yield load and ultimate load of the CFST supports were two times larger than those of the short-column. Meanwhile, the CFST support had a large plastic deformation and its deformation rate could be up to 9%, so it can release the rock mass pressure energy by the deformation of the rock mass. And the support had a higher bearing capacity. So the CFST support was particularly suitable to support the roadway, especially the high ground stress deep roadway and extremely soft rock roadway.
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References
Cai, S.: Modern steel tube confined concrete structures (revised edition). China Communications Press, Beijing (2007)
Zhong, S.-T.: Steel tube confined concrete structures. Tsinghua University Press, Beijing (2004)
Han, L.: Concrete filled steel tubular structure, theory and practice, 2nd edn. Science press, Beijing (2007) (in Chinese)
Han, L.-H.: New research and application of concrete-filled steel tube structure in China. Industrial Architecture (1995) (in Chinese)
Han, L.H.: Tests on stub columns of concrete-filled RHS sections. Journal of Constructional Steel Research 58(3), 353–372 (2002)
Liu, W., Han, L.: Behaviors of concrete-filled steel tubes subject axial local compression. China Civil Engineering Journal 2006(39), 19–27 (2006)
Gao, Y., Wang, B., Wang, J., et al.: Test on structural property and application of concrete-filled steel tube support of deep mine and soft rock roadway. Chinese Journal of Rock Mechanics and Engineering 29(Supp.1), 2604–2609 (2010) (in Chinese)
Wang B.: Analysis on the laws of tunnel deformation in soft rock and the supporting technology of concrete-filled steel tube support (Ph. D. Thesis). Beijing China University of Mining and Technology 2009 (in Chinese)
Gao, Y., Wang, B., Qu, G., et al.: Experimental mechanical properties of steel tube confined concrete and application in the roadway. Eighth Strait Tunnel and Underground Engineering of Academic and Technical Seminars, 11, C15-1–C15-10 (2009) (in Chinese)
Su, L.-W., Zang, D.-S.: Model experimental study on working performance of concrete-filled steel tube supports. Chinese Journal of Underground Space and Engineering 1, 992–994 (2005) (in Chinese)
Zang, D.-S., Wei, L.: Research and laboratory test on steel tubular confined Concrete supports. Mine Construction Technology 22(6), 25–28 (2001) (in Chinese)
Fam, A., Qie, F.S., Rizkalla, S.: Concrete-filled steel tubes subjected to axial compression and lateral cyclic loads. Journal of Structural Engineering 130(4), 631–640 (2004)
Georgios, G., Dennis, L.: Axial capacity of circular concrete-filled tube columns. Journal of Constructional Steel Research 60(7), 1049–1068 (2004)
McAteer, P., Bonacci, J.F., Lachemi, M.: Composite response of high-strength concrete confined by circular steel tube. ACI Structural Journal 101(4), 466–474 (2004)
Liu, W., Han, L.: Tests on local compression behaviors of axially loaded concrete-filled steel tubular members with square sections. Industrial Construction 34, 10–13 (2004) (in Chinese)
Liu, W., Han, L.-H.: Research on some issues of ABAQUS analysis on the behavior of axially loaded concrete-filled steel tubes. Journal of Harbin Institute of Technology 37, 157–160 (2005) (in Chinese)
Ding, F., Yu, Z.: Theoretical Analysis of Mechanical Properties of Concrete-Filled Tubular Steel Stub Columns. Engineering Mechanics 22, 175–181 (2005) (in Chinese)
Abaqus, Inc. Abaqus Example Problems Manual. Version 6.9. Abaqus, Inc., Pawtucket (2009)
Abaqus, Inc. Abaqus Scripting User’s Manual. Version 6.9. Abaqus, Inc., Pawtucket (2009)
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Xuebin, L., Guanglong, Q., Huajun, X., Xiaosheng, H., Junlong, X. (2014). Mechanical Properties of New Concrete-Filled Steel Tubular Support. In: Drebenstedt, C., Singhal, R. (eds) Mine Planning and Equipment Selection. Springer, Cham. https://doi.org/10.1007/978-3-319-02678-7_41
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DOI: https://doi.org/10.1007/978-3-319-02678-7_41
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-02677-0
Online ISBN: 978-3-319-02678-7
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