Translated Title

EXPERIMENTAL STUDY ON DETERIORATION OF GRANITIC RESIDUAL SOIL STRENGTH IN WETTING-DRYING CYCLES

Translated Abstract

The　safety　and　durability　of　the　soil　slope　can　be　threatened　when　the　strength　of　soil　is　deteriorated　due　to　wetting-drying　cycles.Experimental　studies　are　undertaken　on　an　undisturbed　residual　soil　from　southeast　of　Fujian　area.It　aims　to　discuss　the　variation　of　shear　strength　with　the　change　of　water　contain　and　the　cyclic　number　under　wetting-drying　cycles.It　is　shown　that　the　cohesion　of　granite　residual　soil　decreases　in　different　degrees　with　increasing　number　of　cycles　and　finally　reaches　to　a　constant　state.However,the　friction　angle　of　granite　residual　soil　keeps　a　stable　with　little　influence　of　the　wetting-drying　effects.On　the　basis　of　the　relationship　between　the　amount　of　strength　attenuation　and　cyclic　number,the　S-shaped　function　is　adopted　for　fitting.The　results　show　that　the　S-shaped　function　can　well　describe　the　attenuation　rules　of　cohesion　with　the　change　of　cyclic　number.The　results　also　have　an　important　reference　value　for　further　reveal　the　influence　of　wetting-drying　cycles　on　deterioration　mechanism　of　granitic　residual　soil　and　long-term　stability　of　residual　soil　slope　in　southeast　of　Fujian.

Translated Keyword

Cyclic number
Function fitting
Granitic residual soil
Strength attenuation

Classification

TU411.7

Type

Project Name

Project No.

Access Number

WF:perioarticalgcdzxb201703003

Language

Chinese

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