作　　者： ; ;

机构地区： 华南理工大学自动化科学与工程学院安全科学与工程研究所

出　　处： 《昆明理工大学学报（理工版）》 2010年第4期6-10,共5页

摘　　要： 岩体是一种非均质的地质体,其所包含的节理、裂隙等软弱结构面具有较大的随机性,受酸腐蚀岩体的力学参数也表现出较大的离散性.通过研究酸蚀岩体强度试验数据的概率分布特征,论证了酸蚀岩体强度整体概率分布符合二参数weibull函数,并提出用weibull形状参数反映酸蚀岩体的非均匀程度的方法;探讨酸蚀岩体强度试验数据的空间分布特征,绘制了酸蚀岩体的强度平面等值线图,预测了高腐蚀岩体的位置和强度分区边界等工程信息,为岩体软弱结构面的确定提供依据. Rock mass is a non-homogeneous geological body,therefore,the distribution of its weak structure planes such as joint and cracks is quite random and some of its mechanical parameters subjected to acid attack also show a great discreteness.Through experiments,it is proved that the basic probability distribution of the corroded rock mass strength is in correspondence with two-parameter weibull function.The method to describe heterogeneity of the corroded rock mass referring to the parameter of weibull distribution function is then proposed.Considering the distribution characteristics,plane contour map of strength of corroded rock mass is drawn based on radial basis functions to predict such engineering information as the positions with higher corroded rock mass strength and the boundaries for separating areas with different strength.This study provides reference for determining the location of the weak structure planes.

关 键 词： 岩体 酸腐蚀 分布特征 等值线

领　　域： [建筑科学] [建筑科学]