Research on Mechanical Property and Economic Effect of Contractible Concrete Filled Steel Tube Support

Abstract:

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The finite models of U-steel support, grid steel frame, hollow steel tube support and concrete filled steel tube support were established, of which mechanical property and influencing factor such as bearing capacity, support effect etc. was analyzed. Comparative analysis of economic benefit was carried out through research of material dosage and support effect index. The contractible joint for concrete filled steel tube was designed, and their mechanical characteristic was analyzed through test. The results show that the supporting performance of concrete filled steel tube support is related to confinement coefficient. Compared with traditional support, the concrete filled steel tube support has high bearing capacity, intensive later strength, good ductility, various standards and well economic benefits, and in conjunction with contractible joint, it is able to implement functions of quantitatively increasing resistance and yielding. Properly designed through optimization analysis on associated effects, the concrete filled steel tube support can meet supporting demand of deep soft rock and joint broken rock.

Info:

Periodical:

Edited by:

Xuejun Zhou

Pages:

722-727

DOI:

10.4028/www.scientific.net/AMM.90-93.722

Citation:

H. Li et al., "Research on Mechanical Property and Economic Effect of Contractible Concrete Filled Steel Tube Support", Applied Mechanics and Materials, Vols. 90-93, pp. 722-727, 2011

Online since:

September 2011

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Price:

$38.00

[1] Baoshu Guan and Zhaolin Guo: Tunnel and Underground Engineering (Southwest Transport University Press, Chengdu 2000).

[2] Youheng Zhu and Qinghai Meng: Shandong Coal Science and Technology. Vol. 26, No. 4 (2009), p.30.

[3] Yan Yu, Mingcai Jiang and Kangcheng Lv: Highway, Vol. 50, No. 5 (2005), p.110.

[4] Chunan You: Chinese Journal of Rock Mechanics and Engineering, Vol. 21, No. 11 (2002), p.1672.

[5] Shaohuai Cai: Modern Concrete Filled Steel Tube Construction (China Communication Press, Beijing 2003).

[6] Yanfa Gao, Bo Wang and Jun Wang: Chinese Journal of Rock Mechanics and Engineering, Vol. 29 S1 (2010), p.2604.

[7] Linhai Han: Concrete Filled Steel Tube Construction-theory and Practice (Science Press, Beijing 2004).

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