Optimizing process of preparing artificial-similar material for rocky slope with uniform formula design  

基于均匀配方设计的岩质边坡相似材料制备过程优化（英文）

作　　者：FAN Tian-cheng ZHOU Chuan-bo JIANG Nan WU Ting-yao 范天成;周传波;蒋楠;吴廷尧

机构地区：[1]Departerment of Engineering, China University of Geosciences (Wuhan)

出　　处：《Journal of Central South University》2018年第12期2871-2882,共12页中南大学学报（英文版）

基　　金：Projects(41372312,51379194)supported by the National Natural Science Foundation of China;Project(CUGL140817)supported by the Fundamental Research Funds for the Central Universities of China University of Geosciences(Wuhan);Project(2014CFB894)supported by the Natural Science Foundation of Hubei Province of China;Project(2014M552113)supported by the China Postdoctoral Science Foundation

摘　　要：The determination of material formula needs try-and-error experiment,and consumes large amount of time and fund.In order to solve the problem,a comprehensive method is established,via the experiment of artificial-similar material formula of a mine slope.We controlled the samples by the compactness,and arranged the formula of the test group with the method of the uniform formula experiment.The physical and mechanical parameters of these samples were analyzed using the method of the partial least-squares regression(PLS).And a mathematical model of the indexes of physical and mechanics parameters relating to the factors of formulation constituents was established eventually.We used the model to analyze the effect of each formulation constituent on physical and mechanics parameters of samples.The experiment results and analysis illustrates that1)in the formulation of similar material,the effect of raw materials on the internal friction angleφand cohesion C is opposite;2)The method can highly facilitate the process of the of preparing artificial-similar materials,more economic and effective.由于相似材料的最终配比,需要通过大量的物理试验才能够获得,这样会耗费大量的时间与资金,为了解决这个问题,结合工程实际,开展关于矿山边坡的相似材料配比试验,建立一种综合试验分析方法。在试验过程中,通过制样时试样的压实度来控制试样的密度,同时利用正交试验,对试验方案进行设计。然后,基于偏最小二乘回归分析(PLS)法,对试样的物理力学参数进行综合分析。最后,将组成相似材料的主要成分作为主要分析因素,建立一个数学模型,分析得到相似材料的配比成分对于试样物理力学参数的影响。通过分析,得出以下结论:1)在相似材料的配比试验中,相似材料的每一个主要成分对于试样内摩擦角的与粘聚力的影响效果,是存在相反关系的。2)该种分析方法提高了配比试验开展的效率,减少了试验开展所需的费用,有利于试验经济高效的进行。

关 键 词：FAULT artificial-similar material optimization uniform formula experiment multiple independent variable and multiple dependent variable partial least-squares regression 

分 类 号：TU457[建筑科学—岩土工程]