摘要
为分析层状反倾岩质边坡在坡度、岩层厚度、岩层倾角等3种常见几何特征因子作用下的倾倒变形响应规律,选取总位移指标作为倾倒变形评价指标,对几何特征因素下的144种组合方案进行了数值模拟研究,结果表明:随着坡度增加,反倾边坡易倾倒区变化路径为一条"C"型曲线,且总位移值逐渐增加;随着岩层倾角增大,易倾倒区面积逐渐减小、数值逐渐增加,在岩层倾角由30°增加至40°过程中,易倾倒区位置发生较明显的变化,岩层倾角增大到40°以后,易倾倒区位置相对较固定,变化较小;当岩层厚度为0.1,0.4 m时,易倾倒区主要平行坡度坐标轴呈条状分布;当岩层厚度为0.2~0.3m时,易倾倒区向坡度80°附近迁移,岩层厚度为0.2m时易倾倒区的总位移值最大。
In order to analyze the dumping deformation response law of layered and anti-dip rock slope under the influences of three common geometrical factors, including slope, strata thickness and inclination, total displacement index was selected as an evaluation index of dumping deformation, and 144 combination schemes under geometrical factors were simulated and studied. The results showed that with the increase of slope, the change path of easy dumping zone in anti-dip slope was a curve as ＂C＂ shape, and the total displacement value increased gradually. With the increase of the dip angle of strata, the area of easy dump- ing zone gradually decreased but the value increased gradually. In the process of dip angle of strata increasing from 30° to 40°, the location of easy dumping zone changed significantly. When the dip angle of strata increased to 40°, the location of easy dumping zone was relatively fixed, with a small change. When the strata thickness was 0.1 m and 0.4 m, the easy dumping zone was mainly parallel to the coordinate axis of slope and presented a strip distribution. When the strata thickness was in the range of 0.2 m to 0.3 m, the easy dumping zone migrated to the location near the slope of 80°. And the total displacement of easy dumping zone was the largest as the strata thickness of 0.2 m.
作者
艾孜买提江.艾尼娃尔
谢良甫
苏尔亚木.海米提
AIZIMAITIJ IANG;Ainiwaer;XIE Liangfu;SURYA · Hamit(College of Civil Engineering and Architecture,Xinjiang University,Urumqi,Xinjiang 830047,China)
出处
《矿业研究与开发》
CAS
北大核心
2018年第8期6-10,共5页
Mining Research and Development
基金
新疆大学大学生创新训练计划国家级项目(201710755023)
新疆大学博士科研启动基金项目(BS160254)
新疆维吾尔自治区自然科学基金项目(2017D01C078)
关键词
反倾边坡
倾倒变形
数值模拟
几何特征因子
响应规律
Anti-dip slope
Dumping deformation
Numerical simulation
Geometric features
Response law
