Experiment on Strength and Deformation Characteristics of Marine Silt Cement Soil and Their Relationship

Authors

DENG Wu, Changsha Metro Group Co .， Ltd., Changsha , Hunan 410019 ,ChinaFollow
LIU Weizheng, School of Civil Engineering , Central South University ,Changsha , Hunan 410075， ChinaFollow
CHEN Tie, CCFCD Civil Engineering Co ., Ltd., Changsha , Hunan 410004 ,China
GE Mengyuan, School of Civil Engineering , Central South University ,Changsha , Hunan 410075， China

Corresponding Author

刘维正，男，博士，副教授.E-mail：liuwz2011@csu.edu.cn

Abstract

In order to study the compre ssive，flexural，and shear strength and deformation characteristics of marine silt cement soil，a series of laboratory mix ratio tests were carried out，so as to test the changes in unconfined compressive strength fcu，flexural strength ff，normalized shear strength τqg，normalized principal stress difference （σ1‒σ3）/σ3，and compression modulus Es under different dosage of curing agents，curing ages，and cement-to-lime ratios.In addition，the correlation between different parameters was investigated.The results show that the performance of the improved samples with cement and lime is 2%‒17% higher than that with cement alone under the same dosage.The strength of cement soil is proportional to the dosage and age of the curing agents and inversely proportional to the cement-to-lime ratio.The strength is mainly formed in the early stage of molding，and the growth rate of the strength at the early stage accelerates with the decrease in the cement-to-lime ratio.The strength of most parameters at a curing age of 14 d has exceeded 50% of those at a curing age of 90 d，and the strength at a curing age of 28 d has exceeded 70%.When the cement-to-lime is 0.5，the above indexes are the best.In addition，there is an obvious linear relationship between different parameters，with ff，τqg，（σ1‒σ3）/σ3，and Es being 0.33‒0.35，0.35‒0.37，9.58‒10.31，and 17.27‒17.66 times of fcu，respectively.

Publication Date

5-7-2024

DOI

10.14048/j.issn.1671-2579.2024.02.010

First Page

91

Last Page

102

Submission Date

February 2025

Recommended Citation

Wu, DENG; Weizheng, LIU; Tie, CHEN; and Mengyuan, GE (2024) "Experiment on Strength and Deformation Characteristics of Marine Silt Cement Soil and Their Relationship," Journal of China & Foreign Highway: Vol. 44: Iss. 2, Article 10.
DOI: 10.14048/j.issn.1671-2579.2024.02.010
Available at: https://zwgl1980.csust.edu.cn/journal/vol44/iss2/10

Reference

[1]裘友强 ,宫玉明 ,刘军勇 .地基路基路面协同沉降变形一体化设计方法研究 [J].中外公路 ,2022 ,42(2):57-61.QIU Youqiang ,GONG Yuming ,LIU Junyong .Research on integrated design method of cooperative settlement deformation of foundation and subgrade [J].Journal of China & Foreign Highway ,2022 ,42(2):57-61.
[2]董倩 ,吕耀志 ,程少锋 ,等.机场刚性道面基层顶面模量转换关系研究 [J].中外公路 ,2022 ,42(2):62-67.DONG Qian ,LYU Yaozhi ,CHENG Shaofeng ,et al .Study on conversion relationship about modulus of subgrade in airport rigid pavements [J].Journal of China & Foreign Highway ,2022 ,42(2):62-67.
[3]MIAO X D ,ZHANG M ,WANG Y M ,et al .Mechanical characteristics and optimum design of SMW construction method for a comprehensive pipe gallery in a water-rich weak stratum [J].Journal of Highway and Transportation Research and Development (English Edition ),2020 ,14(4):59-69.
[4]匡一成，杨铠波，尹平保，等.吹填人工岛软基处理及围堰变形监测分析 [J].中外公路 ，2023 ,43（6） ：21-26.KUANG Yicheng ，YANG Kaibo ，YIN Pingbao ，et al .Cofferdam deformation monitoring and soft foundation treatment for hydraulic reclamation artificial island [J].Journal of China & Foreign Highway ,2023，43(6):21-26.
[5]王艳萍，孙庆楠，陈昊若 .美标水泥搅拌桩设计方法研究[J].中外公路 ，2022 ,42（5） ：19-23.WANG Yanping ,SUN Qingnan ,CHEN Haoruo .Research on design method of cement mixing piles under american standards [J].Journal of China & Foreign Highway ,2022，42(5):19-23.
[6]秦世伟 ,陆小锋 ,张国军 .水泥土搅拌法加固淤泥质黏土的试验研究 [J].中外公路 ,2019 ,39(5):256-260.QIN Shiwei ,LU Xiaofeng ,ZHANG Guojun .Experimental study on mucky clay strengthened by cement-soil mixed method [J].Journal of China & Foreign Highway ,2019 ,39(5):256-260.
[7]赵百超 ,陈四利 ,侯芮 .冻融循环与疲劳荷载作用下水泥土力学特性试验研究 [J].中外公路 ,2021 ,41(4):362-365.ZHAO Baichao ,CHEN Sili ,HOU Rui .Experimental study on mechanical properties of cement-soil under freeze-thaw cycle and fatigue load [J].Journal of China & Foreign Highway ,2021 ,41(4):362-365.
[8]黄凯 ,张明义 ,杨淑娟 ,等.基坑水泥土墙内微型钢管桩承载特性试验研究 [J].工业建筑 ,2018 ,48(2):134-138,168.HUANG Kai ,ZHANG Mingyi ,YANG Shujuan ,et al .Experimental research on bearing capacity of micro-steel pile embedded in cement-soil wall in deep excavation [J].Industrial Construction ,2018 ,48(2):134-138,168.
[9]陈柯，梁爽，赵振国，等.水泥土抗裂性能的影响因素分析[J].中外公路 ，2023 ,43（5） ：194-197.CHEN Ke ，LIANG Shuang ，ZHAO Zhenguo ，et al.Analysis of influencing factors on cracking resistance of soil-cemen[J].Journal of China & Foreign Highway ,2023，43(5):194-197.
[10]郑少辉 ,赖汉江 ,章荣军 ,等.不同水灰比水泥固化黏土的强度特性试验研究 [J].地下空间与工程学报 ,2014 ,10(6):1281 -1284 ,1292 .ZHENG Shaohui ,LAI Hanjiang ,ZHANG Rongjun ,et al .Experimental research on strength characteristics of cement-stabilized clay with different water-cement ratio[J].Chinese Journal of Underground Space and Engineering ,2014 ,10(6):1281 -1284 ,1292 .
[11]SHARMA L K ,SINGH T N .Regression-based models for the prediction of unconfined compressive strength of artificially structured soil [J].Engineering with Computers ,2018 ,34(1):175-186.
[12]杨智慧 ,李珊花 .基于 PFC2D的水泥土单轴压缩试验及细观数值模拟 [J].中外公路 ，2023 ,43（1） ：189-193.YANG Zhihui ，LI Shanhua .Uniaxial shear test and mesoscopic numerical simulation of cemental soil based on PFC2D method [J].Journal of China & Foreign Highway ,2023，43(1):189-193.
[13]刘松玉 ,周建 ,章定文 ,等.地基处理技术进展 [J].土木工程学报 ,2020 ,53(4):93-110.LIU Songyu ,ZHOU Jian ,ZHANG Dingwen ,et al .State of the art of the ground improvement technology in China [J].China Civil Engineering Journal ,2020 ,53(4):93-110.
[14]朱崇辉 ,王增红 .水泥土单轴抗拉强度试验研究 [J].武汉理工大学学报 (交通科学与工程版 ),2013 ,37(6):1239 -1242 .ZHU Chonghui ,WANG Zenghong .Research on the cement soil uniaxial tensile strength test [J].Journal of Wuhan University of Technology (Transportation Science & Engineering ),2013 ,37(6):1239 -1242 .
[15]江国龙 ,陈四利 ,毛学文 ,等.水泥土劈裂抗拉强度试验研究[J].公路交通科技 ,2017 ,34(8):29-33,56.JIANG Guolong ,CHEN Sili ,MAO Xuewen ,et al .Experimental study on splitting tensile strength of cement-soil[J].Journal of Highway and Transportation Research and Development ,2017 ,34(8):29-33,56.
[16]赵百超 ,陈四利 ,董凯赫 .基于膨润土 、粉煤灰的水泥复合土抗剪强度研究 [J].硅酸盐通报 ,2019 ,38(9):2882 -2889 .ZHAO Baichao ,CHEN Sili ,DONG Kaihe .Shear strength of cement composite soil based on bentonite and fly ash[J].Bulletin of the Chinese Ceramic Society ,2019 ,38(9):2882 -2889 .
[17]赵春彦 ,黄启友 ,郎锋 ,等.单因素和多因素作用下的水泥土强度评估模型试验研究 [J].铁道科学与工程学报 ,2018 ,15(11):2788 -2795 .ZHAO Chunyan ,HUANG Qiyou ,LANG Feng ,et al .Experimental study on strength evaluation model of cement soil under single factor and multi factors [J].Journal of Railway Science and Engineering ,2018 ,15(11):2788 -2795 .
[18]陈四利 ,侯芮 ,倪春雷 ,等.基于三轴压缩试验的水泥土力学特性研究 [J].硅酸盐通报 ,2018 ,37(12):4012 -4017 .CHEN Sili ,HOU Rui ,NI Chunlei ,et al .Research on the mechanical properties of cemented soil based on triaxial compression tests [J].Bulletin of the Chinese Ceramic Society ,2018 ,37(12):4012 -4017 .
[19]TRAN K Q ,SATOMI T ,TAKAHASHI H .Improvement of mechanical behavior of cemented soil reinforced with waste cornsilk fibers [J].Construction and Building Materials ,2018 ,178:204-210.
[20]ZHANG R ,WU S M ,CAO Y P ,et al .Research on prediction of cement-soil cohesion based on strength test[J].IOP Conference Series :Earth and Environmental Science ,2021 ,781(2):022096 .
[21]陈晓静 ,王保田 ,左晋宇 ,等.水泥土抗压抗剪强度及相关性研究 [J].水运工程 ,2021 (8):169-175.CHEN Xiaojing ,WANG Baotian ,ZUO Jinyu ,et al .Study on compressive and shear strength of cement-mixed soil and correlation [J].Port & Waterway Engineering ,2021 (8):169-175.