基于ANSYS的藏式毛石墙体抗压性能研究

Research on compressive performance of Tibetan rubble wall based on ANSYS

藏式毛石墙体普遍抗压性能较差,而改善藏式毛石墙体抗压性能的前提是掌握其在受压状态下的破坏机理。为了提高藏式毛石墙体的抗压性能,利用有限元软件ANSYS,通过一种新的数值模拟方法对藏式毛石墙体受压破坏特征以及薄弱部位进行分析。通过将数值模拟与2片试验墙体的荷载位移曲线进行对比分析,验证了此套数值模拟的可靠性。在此基础上开展了3组不同黄泥含量对藏式毛石墙体受压性能的影响研究。研究结果表明:藏式毛石墙体抗压性能随黄泥含量的增加而提高,当黄泥含量为15%左右时,藏式毛石墙体抗压性能最佳。当黄泥含量超过15%时,藏式毛石墙体抗压性能随黄泥含量增加而降低。

The compressive performance of Tibetan rubble stone wall is poor,and the premise of improving the compressive performance of Tibetan rubble stone wall is to master its failure mechanism under pressure.In order to improve the compressive performance of Tibetan rubble wall,the finite element software ANSYS is used to analyze the compressive failure characteristics and weak parts of Tibetan rubble wall by a new numerical simulation method.The reliability of the numerical simulation is verified by comparing the load displacement curves of two test walls and the numerical simulation wall.This paper carried out a research on influence of three groups of different content of yellow mud on the compressive properties of Tibetan rubble wall on this basis.The results show that the compressive performance of Tibetan rubble wall is improved with the increase of yellow mud content,and the compressive performance of Tibetan rubble wall is the best when the yellow mud content is about 15%.However,when the yellow mud content exceeds 15%,the compressive performance of Tibetan rubble wall decreases with the increase of yellow mud content.