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TESTING STUDY ON THE SWELLING MECHANICAL BEHAVIOR OF RED SANDSTONE
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Abstract A series of tests are performed on rock rigidity servo testing system (MTS815.02) and rock odometer to study the swelling mechanical behaviors of red sandstone taken from the foundation pit of Hongshanyao Project (HSYP) in Nanjing. The interrelation of expansive force with water absorption rate and the law of expansive force with expansive strain are studied. It is concluded that the water absorption rate has a significant influence on expansive force.
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Received: 17 August 2003
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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