泥质岩土石料填筑体变形特性研究  

Experimental Study on Deformation Characteristics of Argillaceous Rock Fill

作　　者：王林 Wang Lin(Nanchang Hongchang Construction Engineering Supervision Co.Ltd.,Nanchang,Jiangxi 330038)

机构地区：[1]南昌洪昌建设工程监理有限公司,江西南昌330038

出　　处：《江西建材》2024年第12期254-256,共3页

摘　　要：为提升泥质岩土石料填筑体的使用性能,文中利用变形模拟设备,测试并分析填筑石料的力学及变形特性。结果表明,随着应变增加,单轴加载下填筑体应力先上升后下降;三轴加载下应力随应变的增加表现为先线性增加后降低再趋于平缓的趋势;填筑体石料破坏机理为岩块似弹塑性、岩块接触面压裂、填筑体崩溃失稳和岩块破碎;填筑体变形与荷载表现为对数关系,相关系数为0.94。与试验前相比,试验后各层级配曲线明显变缓,且自上到下级配分布逐层均匀。In order to improve the performance of shale rock fill,deformation simulation equipment was used to test and analyze the mechanical and deformation characteristics of rock fill.The results show that with the increase of strain,the stress of the fill increases first and then decreases under uniaxial loading.Under triaxial loading,the stress increases linearly with the increase of strain,then decreases and then tends to be flat.The rock failure mechanism of fill body is rock elastic-plastic,rock contact surface fracturing,fill collapse instability and rock fragmentation.The logarithmic relationship between fill deformation and load performance is 0.94.Compared with before the test,after the test,the distribution curve of each level is obviously slower,and the distribution from top to lower level is uniform layer by layer.

关 键 词：土石材料 填筑体 力学性能 变形特性 

分 类 号：TU99[建筑科学—市政工程]