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[1]YANG Juan,LI Guanglu,WEI Zhou,et al.Experimental Study on Strength of Terraced Field Ridge in Southern Shaanxi Province[J].Research of Soil and Water Conservation,2016,23(01):360-363.

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Experimental Study on Strength of Terraced Field Ridge in Southern Shaanxi Province

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 01 Page number: 360-363 Column: Public date: 2016-02-28

Title:: Experimental Study on Strength of Terraced Field Ridge in Southern Shaanxi Province

Author(s):: YANG Juan¹, LI Guanglu^1,2, WEI Zhou², ZHANG Teng², LI Baiqiao¹, FU Yu¹; 1. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: terraced field ridge; stress-strain; cohesion; internal friction angle

CLC:: S281

DOI:: -

Abstract:: Terraced field ridge in southern Shaanxi was selected as the study site. A study on strength characteristics of local terraced field ridge was carried out. The stress-strain relationship and shear strength characteristics of ridge soil were analyzed, and the failure mode and cause of retaining wall of terraced field ridge were explored. The results showed that soil samples of Yang County were expansive soil, while soil samples taken from Heishan were not expansive or weak expansion. Strength-deformation relationship of soil samples presented a hardening type at high confining pressure, structure failure and strain hardening level enhanced with the increase of confining pressure, while a weak softening characteristic was observed under low confining pressure. The distribution of shear strength parameters had no obvious regularity within 120 cm depth of soil layer, and they were sensitive to changes in moisture, maybe due to the different moisture contents resulting in differences for shear strength between different soils, which may lead to the instability of ridge.

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