›› 2011, Vol. 32 ›› Issue (2): 542-546.

• Geotechnical Engineering • Previous Articles     Next Articles

Research on design formula of soft redbed slope gradients based on rock quality

QIU En-xi1, XIE Qiang2, ZHAO Wen2, ZHANG Li1   

  1. 1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China 2. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2009-09-21 Online:2011-02-10 Published:2011-02-16

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Abstract:

Based on the research of predecessors, investigated slope gradients of 221 redbed rock in Sichuan, Chongqing and Yunnan, etc. Southwest China, and through the statistical analysis of investigating data, Several design formulas for soft rock’s slope gradients are established based on the rock quality evaluation method; the differences of different soft rock’s grade designing formulas. Through applying the design formula of slope gradients to actual projects, the results show that the formula of slope gradients is reasonable and feasible.

Key words: redbed, slope, rock quality, slope gradient design

CLC Number: 

  • TU 452
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