摘要
岩体结构面是影响岩质边坡位移及其稳定性的重要因素之一,但是由于数学和力学上的困难,岩体结构面对岩质边坡变形的影响通常难以用理论公式计算得出,目前只能采用数值分析手段。分别针对坚硬岩边坡和软岩边坡中存在软弱结构面的情况,用有限元差分程序FLAC和边坡稳定性系数公式,定量和定性地讨论了岩体结构面倾角对岩质边坡位移的影响。通过计算分析发现,(1)岩体中结构面的存在是影响岩石边坡位移及其稳定性的重要因素之一;(2)随着结构面倾角的增加,边坡的稳定性和边坡的位移可能增加,也可能减小,并不象我们想象的那样随着结构面倾角的增加而增加,必须用定性和定量方法针对具体问题进行具体分析。
Structures faces in rock mass are one of the important factors influencing the deformation and stability of rock slope, but because of difficulty of mathematics and mechanics, the slope deformation caused by the structure faces in rock mass is usually difficult to calculate out with the theoretical method. Only can we adopt numerical analysis at present. Here in the article, with finite difference program FLAC and stability coefficient formula of slope, the authors have discussed the impact on slope displacement by the dip of structure faces in rock mass quantitatively and qualitatively when weak structure faces exist in hard rock slope and soft rock slope respectively. Through computational analysis, we can see that （ 1 ） The existence the structure faces is one of the important factors which influences the displacement and stability of rock slope; （2） With the increase of the inclination of the structure face, the displacement and stability of the slope may increase, or may reduce too, and does not increase with increase of the inclination as what we imagined. We must make a concrete analysis of the concrete problem quantitatively and qualitatively.
出处
《山地学报》
CSCD
北大核心
2006年第1期105-109,共5页
Mountain Research
基金
重庆市教委科学技术研究项目(编号:2002cj20)~~
关键词
岩体结构面
岩质边坡
边坡位移
定量分析
定性分析
structure faces in rock mass
rock slope
slope displacement
quantitative analysis
qualitative analysis
