Rock-concrete geological body widely exists in the field of geotechnical engineering,which has an important impact on the stability of geotechnical engineering structures.Taking the deterioration characteristics of rock-concrete interface strength under water-rock action as the research object,the deterioration mechanism of rock-concrete geological body under water-rock action is analyzed through shear strength tests of rock-concrete geological body under different dry-wet cycles.The results show that according to the shear test results of rock-concrete geological body interface under different water-rock interaction,the water-rock interaction has a damaging effect on the shear strength of rock-concrete geological body interface,and the shear strength of rock-concrete geological body interface gradually decreases with the increase of dry and wet cycles.The greater the interface roughness coefficient of rock-concrete geological body,the greater the shear strength of rock-concrete geological body.The evolutionary relationship between the shear strength of rock-concrete geological body and the number of freeze-thaw cycles is in line with the exponential function,which establishes the deterioration of rock-concrete interface strength under the action of water and rock.
关键词
水岩作用/岩石-混凝土地质体/损伤作用/劣化模型
Key words
water-rock interaction/rock-concrete geological body/damage effect/deterioration model
维普
万方数据