سال انتشار: ۱۳۹۱

محل انتشار: ششمین کنفرانس بین المللی پیشرفتهای علوم و تکنولوژی

تعداد صفحات: ۹

نویسنده(ها):

Mohd Salim N. A – PhD Student Faculty of Civil Engineering Universiti Teknologi MARA, Malaysia
Mohamed Z – 2Lecturer. Institute for Infrastructure Engineering and Sustainable Management, Faculty of Civil Engineering Universiti Teknologi MARA, Malaysia

چکیده:

Previous studies on unweathered rock material under cyclic loading demonstrated that intact rock material fails at a stress level below than its static strength. This phenomenon is commonly known as fatigue. However, BS5930, 1999 has recommended a mandatory rock classification by weathering grade for rock mass in tropics. Hence, this study is conducted to determine the effect of cyclic load on the uniaxial compressive strength of weathered rock. The consequence of cyclic loading on weathered rock is crucial to investigate since cyclic loading may affect the long-term stability of rock mass. By exploring the mechanical behavior of weathered rock under cyclic loading, fatigue failure can be foreseen. Fatigue failure of rock corresponds to the rock lithology, physical and mechanical properties of rock. Analysis of weathered rock behaviour to the quality of rock microstructure shall be summarized. This paper shall elaborate the hypothesis of weathered rock behavior due to cyclic loading