Analysis of Influence Factors on Strength of Mudstone with Soft-Hard Alternant Strata in Nanning Basin

Abstract:

The mudstone is formed under the special environment with soft-hard alternant strata in Nanning Basin . The composition,engineering and mechanical properties have a certain complexity and specificity,so the parameters of the mudstone are discrete and variable by which the strength characteristics are influenced. According to the problem of the strength of mudstone,the influence factor is analysed on the strength of mudstone with soft-hard alternant strata in Nanning Basin through the composition, stress history, geological environment, water-rock interaction and disturbance, etc.. The analysis shows that in the final analysis the reduction of the mechanical properties of mudstone is due to structural damage, stress weakening and energy weakening.And the measures of improving the bearing capacity of mudstone are discussed from the test methods, construction control measures, in situ testing and engineering design.

• Periodical: Advanced Materials Research (Volumes 204-210)
• Pages: 891-894
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.204-210.891
• Online since: February 2011
• Authors: Fu Rong Ma, Xin Gui Zhang, Nian Ping Yi
• Keywords: Influence Factor, Mudstone, Soft-Hard Alternant Strata, Strength

References

[1] YINian-ping, ZHANG xin-gui. Problems of Laboratory Test for Soft Rock in Nanning basin[J]. Chinese journal of underground space and engineering, 2006, 2(8): 1390-1393.

[2] MA Fu-rong. The experimental design and research of mechanical parameters restoration for Nanning basin[D]. Guangxi University, 2006: 12-13.

[3] HUANG Yu-xin, Study on the engineering properties and the capacity of mudstone of Nanning basin[J]. Building in Guangxi, 1996, 21(3): 114-117.

[4] YI Nian-ping, CAI Shi-gan, ZHANG Xin-gu. Basic experiment model of mudstone in Nanning district[J]. Journal of Guilin Institute of Technology, 2002, 22(1), 36-39.

[5] XU Yan-qing, ZHANG Zhuo-yuan. Introduction to hydraulics of rock mass. Southwest jiaotong university press, 1995, 1-32.

[6] Luo Hong Xi. Physico-chemical properties of swelling soft rocks geotechnical engineering of hard soil-soft rocks, Anagnostopou et al. 1993: 78. Foundation Item: Keystone Items Of Ministry Of Education P.R. C (No.

[2003] 77), National Natural Science Foundation Of China (No. 40062002), Natural Science Foundation Of Guangxi(No. 0447001, 0249010, 0575019, 0779012, 0632006-1B, RC2007001) , Department of Water Resources of Guangxi (No.

[2004] 4), The Research Project of Guangxi Education Department (No.

[2010] 10), and The Research Project of Guangxi Economic Management Cadre College (No. 10KYA006).