残积碎石土斜坡特性参数空间变异性野外调查方法研究  被引量:1

Investigation Method of Spatial Variability of Characteristic Parameters of Residual Gravel Soil Slopes

在线阅读下载全文

作  者:王立震 蔡静森 贾琳 马伟成 刘龙奇 周翔 WANG Lizher;CAI Jingsen;JIA Lin;MA Weicheng;LIU Longqi;ZHOU Xiang(Faculty of Engineering,China University of Geosciences(Wuhan),Wuhan 430074,China;Henan Water Conservancy Survey Co.,Ltd.,Zhengzhou 450003,China)

机构地区:[1]中国地质大学(武汉)工程学院,湖北武汉430074 [2]河南省水利勘测有限公司,河南郑州450003

出  处:《安全与环境工程》2023年第3期179-189,共11页Safety and Environmental Engineering

基  金:国家自然科学青年基金项目(41807264)。

摘  要:特性参数空间变异性是碎石土斜坡随机结构的参数化表征,其合理确定对碎石土斜坡稳定性评价具有重要意义,但现有确定方法工作量大、成本高。提出一种轻量化的碎石土斜坡特性参数空间变异性野外调查方法,并应用于黄冈某残积碎石土斜坡工程实例,得到了碎石土斜坡特性参数空间变异性的初步认识。结果表明:提出的碎石土斜坡特性参数空间变异性野外调查方法有效且方便可行,确定的碎石土斜坡特性参数统计数据特征符合经验认识;目前关于碎石土斜坡特性参数的空间相关性和互相关性的经验认识较少,通过调查确定的碎石土斜坡特性参数的空间相关距离和互相关系数为该方面研究积累了定量数据:该斜坡工程实例水平、垂直、顺坡向的相关距离分别为1.24~2.25 m、0.76~1.23 m、0.14~0.39 m。The spatial variability of characteristic parameters is a parameterized representation of the random structure of a gravel soil slope.Its reasonable determination is of great significance to the evaluation of gravel soil slope stability,but the existing determination methods have a large workload and high cost.We proposed a field investigation method for the spatial variability of slope characteristic parameters in gravel soil,and applied it to a residual gravel soil slope in Huanggang to obtain a preliminary understanding of the spatial variability of slope characteristic parameters of gravel soil.The results show that the field spatial variability survey method of gravel soil slope characteristic parameters proposed in this paper is effective,convenient and feasible,and the statistical characteristics of the characteristic parameters are consistent with empirical knowledge.At present,there is little empirical knowledge about the spatial correlation and cross-correlation of slope characteristic parameters of gravel soil.The spatial correlation distance and crosscorrelation number of slope characteristic parameters determined by investigation provide quantitative data for related research.The horizontal,vertical and along-slope correlation distances of slope examples are:1.24-2.25 m,0.76-1.23 m,0.14-0.39 m.

关 键 词:碎石土斜坡 特性参数 空间变异性 测线调查 相关距离 

分 类 号:X43[环境科学与工程—灾害防治] P642.22[天文地球—工程地质学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象