单因素方差分析在不同冻融条件下砾石土料压实性研究试验成果分析中的应用  

Application of One-Way ANOVA in Analysis of Experimental Results of the Degree of Gravel Soil Compaction under Different Freeze-thaw Cycles Conditions

作　　者：乔介平 邱银宝 张帅 Qiao Jieping;Qiu Yinbao;Zhang Shuai(Yalong River Hydropower Development Co.,Ltd.Chengdu Sichuan 610000,China)

机构地区：[1]雅砻江流域水电开发有限公司

出　　处：《工程与试验》2019年第2期85-87,90,共4页Engineering and Test

摘　　要：两河口水电站大坝为300m级砾石土心墙堆石坝,地处川西高原气候区,冬季气候寒冷干燥,雨季降雨集中。两河口大坝心墙填筑施工受不利的气候条件影响,导致有效的施工时间短缺。为确保冬季有效施工时间得以充分利用,寻求冬季心墙土料快速施工的措施和方法,从宏观角度分析砾石土料受冻前后土体性质变化情况,判断冻融作用对土料压实度是否产生影响,开展了不同冻融条件作用下的土体压实度试验研究工作。通过引入单因素方差分析的方法,对试验数据进行分析,可有效判定不同冻融循环作用对土体压实度是否存在可识别影响,为后续深入研究明确方向。The dam of Lianghekou Hydropower Project is a 300-m-high rock-fill dam constructed with gravel soil core wall.Due to its location in the western Sichuan plateau climate zone,the winter climate is cold and dry,and rainfall is concentrated during the rainy season.The dam core wall filling construction is affected by unfavorable climatic conditions,resulting in a shortage of effective construction time.In order to ensure that the effective construction time in winter is fully utilized,it is necessary to look for measures and methods for rapid construction of winter core wall materials.Analysis from a macro perspective the soil properties of gravel soil before and after freezing can determine whether freeze-thaw cycle effect on the degree of compaction of soil material,and we conducted experimental research on the degree of soil compaction under different freeze-thaw cycles conditions.The test data was analyzed by introducing a One-way ANOVA,which can effectively determine whether the different freeze-thaw cycles have an identifiable influence on the degree of soil compaction clear direction for further in-depth research.

关 键 词：单因素方差分析 冻融循环 土料压实性 

分 类 号：U416.1[交通运输工程—道路与铁道工程]