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Factors affecting pre-failure instability of sand under plane-strain conditions

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Factors affecting pre-failure instability of sand under plane-strain conditions
นักวิจัย : Wanatowski, D. , Chu, Jian
คำค้น : DRNTU::Engineering::Environmental engineering
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Wanatowski, D., & Chu, J. (2012). Factors affecting pre-failure instability of sand under plane-strain conditions. Géotechnique, 62(2), 121-135. , http://hdl.handle.net/10220/11645 , http://dx.doi.org/10.1680/geot.9.P.111
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Géotechnique
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Experimental data obtained from a plane-strain apparatus are presented in this paper to show that a pre-failure instability in the form of a rapid and sustained increase in strain rate can occur for both contractive and dilative sand under fully drained conditions. However, this type of instability is different from the runaway type of instability observed under undrained conditions, and has therefore been called conditional instability. Despite the differences, the conditions for both types of instability are the same for contractive sand. There are also other factors that affect the pre-failure instability of sand observed in the laboratory. These include the stress ratio, void ratio, sand state, load control mode and reduction rate of the effective confining stress. In this paper, these factors are discussed and analysed using experimental data obtained from undrained instability (or creep) tests and constant shear drained (CSD) tests carried out under plane-strain conditions.

บรรณานุกรม :
Wanatowski, D. , Chu, Jian . (2555). Factors affecting pre-failure instability of sand under plane-strain conditions.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wanatowski, D. , Chu, Jian . 2555. "Factors affecting pre-failure instability of sand under plane-strain conditions".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Wanatowski, D. , Chu, Jian . "Factors affecting pre-failure instability of sand under plane-strain conditions."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Wanatowski, D. , Chu, Jian . Factors affecting pre-failure instability of sand under plane-strain conditions. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.