Analysis of Mineralogical Composition and Texture to Quantify the Mechanical Properties of Red Bed Soft Rock#br#
——A Case Study of Leipi Rock at World Heritage Site, Mt. Langshan in Hunan Province
Analysis of Mineralogical Composition and Texture to Quantify the Mechanical Properties of Red Bed Soft Rock#br#
——A Case Study of Leipi Rock at World Heritage Site, Mt. Langshan in Hunan Province[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(4):139-149.
Analysis of Mineralogical Composition and Texture to Quantify the Mechanical Properties of Red Bed Soft Rock#br#
——A Case Study of Leipi Rock at World Heritage Site, Mt. Langshan in Hunan Province[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(4):139-149.DOI:
This study focuses on the mineralogical composition and texture of redbed soft rock. On the basis of the statistical analysis of the redbed soft rock characteristics
such as the composition
grain size observed under polarized light microscope
the effects of composition and texture on the mechanical properties were discussed respectively. The study on rock samples has shown that: ① the compressive strength and modulus of elasticity show a rising trend with the increase of mineralogy content and grain size; ② as average grain size increases
its compressive strength and modulus of elasticity become stronger accordingly. When the average grain size reaches a numerical range (diameter is about 025 mm)
the compressive strength and modulus of elasticity would bump up at the same time
according to which we can speculate that mineralogical composition has a bigger effect on the mechanical properties than the grain size.
关键词
红层软岩丹霞地貌物质组成力学性质定量研究
Keywords
red bed soft rockDanxia landformmineralogical compositionmechanical propertiesquantitative analysis