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浙江大学学报(工学版)
浙江大学学报(工学版)
土木工程     
基于响应面法的杭州海相软土固化强度模型
徐日庆1,畅帅1,俞元洪2，陆建阳1
1. 浙江大学 滨海和城市岩土工程研究中心,浙江 杭州 310058；2. 浙江围海建设集团股份有限公司,浙江 宁波 315040
Model of strength developedwithresponse surface methodology for solidified marine soft clay of Hangzhou
XU Ri-qing1, CHANG Shuai1, YU Yuan-hong2, LU Jian-yang1
1.Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou, 310058, China; 2.Zhejiang Reclaim Construction Group Co., LTD., Zhejiang,Ningbo, 315040,China.
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摘要：

为了综合考察土初始含水量、土有机质含量、水泥掺量比及固化剂CX-13掺量对固化效果的影响,对不同土体提出固化方案,以有机质含量、初始含水量、水泥掺量、CX-13掺量作为4个自变量,以固化土28 d无侧限抗压强度作为响应值,采用旋转中心组合设计安排试验.利用响应面法对试验结果进行回归分析,建立各自变量与强度响应间的量化模型.考察各自变量间的交互作用关系,并从机理上对各交互关系进行探讨.结果表明：固定初始含水量与CX-13掺量,强度响应峰值对应的有机质含量随水泥掺量的增大而减小；固定有机质含量与CX-13掺量,强度响应峰值对应的初始含水量随水泥掺量的增大而增大；固定有机质含量与初始含水量,水泥的最佳掺量与CX-13掺量呈正相关关系.
Abstract:

In order to consider comprehensively the influence of initial water content, organic matter content, mixing ratios of cement and CX-13 agent on solidification, and further propose solidification schemes for different soils pertinently, response surface methodology (RSM) based on central composite rotatable design (CCRD) was employed for experiment arrangement, in which response values were unconfined compressive strength of 28 days andindependent variables were initial water content, organic matter content, mixing ratios of cement and CX-13. By regression analysis of test results, a quantitative model between independent variables and response values was constructed, mutual-influences of independent variables were analyzed, and mechanism of mutual-influences was explored. The result shows thatorganic matter content corresponding to the peak value of strength reduces with the increase of cement mixing ratiowhileinitial water content and CX-13 mixing ratioarefixed,initial water content corresponding to the peak value of strength grows with the increase of cement mixing ratiowhileorganic matter content and CX-13 mixing ratioare fixed. The optimal cement mixing ratio is positively related with CX-13 content once organic matter content and initial water content are fixed.
出版日期: 2014-11-01
:  TU 411  
基金资助:

国家自然科学基金资助项目（51178420）
作者简介: 徐日庆（1962- ）,男，教授，博导.主要从事软土地基处理方面的研究.E-mail: xurq@zju.edu.cn
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引用本文:

徐日庆,畅帅,俞元洪，陆建阳. 基于响应面法的杭州海相软土固化强度模型[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.11.005.

XU Ri-qing, CHANG Shuai, YU Yuan-hong, LU Jian-yang. Model of strength developedwithresponse surface methodology for solidified marine soft clay of Hangzhou. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.11.005.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.11.005    或    http://www.zjujournals.com/eng/CN/Y2014/V48/I11/1941

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